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ef4356b567
gtk3/gtk/gtktreeview.c
Havoc Pennington ef4356b567 adapt to handle PangoColor 
2001-01-26  Havoc Pennington  <hp@redhat.com>

	* gtk/gtktextlayout.c (convert_color): adapt to handle PangoColor

	* gtk/gtktreeview.c (gtk_tree_view_widget_to_tree_coords): fix to
	not offset by TREE_VIEW_HEADER_HEIGHT
	(gtk_tree_view_tree_to_widget_coords): fix to not offset by
	TREE_VIEW_HEADER_HEIGHT

	* configure.in (included_loaders): for me, --with-included-loaders
	generates the error "the specified loader yes does not exist",
	i.e. the arg defaults to "yes", so change test for value ""
	to test for value "yes", and include all loaders in that case.

	* gtk/gtkrbtree.c (_gtk_rbtree_get_depth): new function

	* gtk/gtktreeview.c (gtk_tree_view_get_cell_rect): fix to properly
	handle TREE_VIEW_VERTICAL_SEPARATOR
	(gtk_tree_view_bin_expose): fix to consider the row offset as
	pointing halfway into vertical separator.
	(gtk_tree_view_draw_node_focus_rect): ditto

	* gtk/gtkdebug.h, gtk/gtkmain.c (gtk_init_check): Add
	--gtk-debug=updates, which causes gdk_window_set_debug_updates
	(TRUE) to be called.

	* gdk/gdkwindow.c (gdk_window_set_debug_updates): Allow enabling a
	debug mode where the invalid region is colored in on invalidate,
	so you can see the flicker and know whether your redraw code is
	doing a good job.

	* gtk/gtktreeview.c (gtk_tree_view_queue_draw_node): Work in
	tree window coordinates (clip rect is in tree window coords)

	* gtk/Makefile.am: add gtktreednd.[hc]

	* gtk/gtkliststore.c: implement gtktreednd interfaces.

	* gtk/gtktreednd.c, gtk/gtktreednd.h: New interface to support
	drag-and-drop data operations on a model (so we can set up tree
	drag-and-drop automatically)

	* gtk/testgtk.c: Add a window to change sensitivity in the
	GtkLabel test; add a way to change the entry frame in GtkEntry
	test

	* gtk/gtkentry.c (gtk_entry_set_has_frame):
	(gtk_entry_get_has_frame): new functions to remove the frame
	around an entry
	(gtk_entry_size_request): shrink requisition if no frame
	(gtk_entry_draw_focus): don't draw frame if no frame

	* gtk/gtkstyle.c (gtk_default_draw_check): draw custom look for
	checks inside a cell renderer
	(gtk_default_draw_option): ditto for options

	* gtk/gtktreeviewcolumn.c (update_button_contents): add/remove
	children from the alignment, not the button
	(gtk_tree_view_column_init): ref/sink the column, to emulate
	GObject refcounting.

	* gtk/gtkcellrenderer.c (gtk_cell_renderer_init): ref/sink

	* gtk/gtkcellrenderertoggle.c (gtk_cell_renderer_toggle_render):
	Use theme functions to draw the toggles

	* gdk/gdkpango.c (gdk_pango_get_gc): use GdkRGB to alloc colors

	* gdk/gdkpango.h, gdk/gdkpango.c: Add GdkPangoAttrStipple and
	GdkPangoAttrEmbossed to use in rendering insensitive text

	* gdk/gdkpango.c (gdk_draw_layout_line): render new properties

	* gtk/gtkstyle.c (gtk_default_draw_layout): handle sensitivity
	using new GDK features
2001-01-26 21:12:05 +00:00

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/* gtktreeview.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gtktreeview.h"
#include "gtkrbtree.h"
#include "gtktreednd.h"
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtksignal.h"
#include "gtkmain.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include <gdk/gdkkeysyms.h>
/* the width of the column resize windows */
#define TREE_VIEW_DRAG_WIDTH 6
#define TREE_VIEW_EXPANDER_WIDTH 14
#define TREE_VIEW_EXPANDER_HEIGHT 14
/* The TREE_VIEW_VERTICAL_SEPARATOR is the space between rows. The
* GTK_RBNODE_GET_HEIGHT() value includes the separators; the offset
* of each row points to the center of the inter-row space. For an odd
* separator, the extra pixel by convention goes _below_ the row. So
* a node in the rbtree owns TREE_VIEW_VERTICAL_SEPARATOR/2 pixels
* above the row, and TREE_VIEW_VERTICAL_SEPARATOR/2 +
* TREE_VIEW_VERTICAL_SEPARATOR%2 pixels below the row.
*/
/* Set to large number for debugging. Should normally be 2. */
#define TREE_VIEW_VERTICAL_SEPARATOR 11
#define TREE_VIEW_HORIZONTAL_SEPARATOR 0
/* The "background" areas of all rows/cells add up to cover the entire tree.
* The background includes all inter-row and inter-cell spacing.
* The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
* i.e. just the cells, no spacing.
*/
#define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (_gtk_rbtree_node_find_offset ((tree), (node)) + TREE_VIEW_HEADER_HEIGHT ((tree_view)))
#define CELL_FIRST_PIXEL(tree_view,tree,node) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + TREE_VIEW_VERTICAL_SEPARATOR/2)
#define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
#define CELL_HEIGHT(node) (BACKGROUND_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR);
#define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) - TREE_VIEW_HEADER_HEIGHT (tree_view))
#define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) + TREE_VIEW_HEADER_HEIGHT (tree_view))
typedef struct _GtkTreeViewChild GtkTreeViewChild;
struct _GtkTreeViewChild
{
GtkWidget *widget;
gint x;
gint y;
};
static void gtk_tree_view_init (GtkTreeView *tree_view);
static void gtk_tree_view_class_init (GtkTreeViewClass *klass);
/* object signals */
static void gtk_tree_view_finalize (GObject *object);
/* widget signals */
static void gtk_tree_view_setup_model (GtkTreeView *tree_view);
static void gtk_tree_view_realize (GtkWidget *widget);
static void gtk_tree_view_unrealize (GtkWidget *widget);
static void gtk_tree_view_map (GtkWidget *widget);
static void gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_tree_view_expose (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gtk_tree_view_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_tree_view_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_tree_view_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_tree_view_button_release (GtkWidget *widget,
GdkEventButton *event);
static void gtk_tree_view_draw_focus (GtkWidget *widget);
static gint gtk_tree_view_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_view_focus (GtkContainer *container,
GtkDirectionType direction);
/* container signals */
static void gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_tree_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
/* Source side drag signals */
static void gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDragContext *context);
static void gtk_tree_view_drag_end (GtkWidget *widget,
GdkDragContext *context);
static void gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context);
/* Target side drag signals */
static void gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
/* tree_model signals */
static void gtk_tree_view_set_adjustments (GtkTreeView *tree_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj);
static void gtk_tree_view_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data);
/* Internal functions */
static void gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GdkRectangle *clip_rect);
static void gtk_tree_view_queue_draw_path (GtkTreeView *tree_view,
GtkTreePath *path,
GdkRectangle *clip_rect);
static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gint x,
gint y);
static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
gint *x1,
gint *x2);
static gint gtk_tree_view_new_column_width (GtkTreeView *tree_view,
gint i,
gint *x);
static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view);
static gint gtk_tree_view_insert_iter_height (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static void gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse,
gboolean calc_bounds);
static void gtk_tree_view_calc_size (GtkTreeView *priv,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static gboolean gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
GtkTreeIter *iter,
gint depth,
gint *height);
static void gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static void gtk_tree_view_check_dirty (GtkTreeView *tree_view);
static void gtk_tree_view_create_button (GtkTreeView *tree_view,
gint i);
static void gtk_tree_view_create_buttons (GtkTreeView *tree_view);
static void gtk_tree_view_button_clicked (GtkWidget *widget,
gpointer data);
static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event);
static GtkContainerClass *parent_class = NULL;
/* Class Functions */
GtkType
gtk_tree_view_get_type (void)
{
static GtkType tree_view_type = 0;
if (!tree_view_type)
{
static const GTypeInfo tree_view_info =
{
sizeof (GtkTreeViewClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_tree_view_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkTreeView),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_tree_view_init
};
tree_view_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTreeView", &tree_view_info, 0);
}
return tree_view_type;
}
static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
GObjectClass *o_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
o_class = (GObjectClass *) class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
parent_class = g_type_class_peek_parent (class);
o_class->finalize = gtk_tree_view_finalize;
widget_class->realize = gtk_tree_view_realize;
widget_class->unrealize = gtk_tree_view_unrealize;
widget_class->map = gtk_tree_view_map;
widget_class->size_request = gtk_tree_view_size_request;
widget_class->size_allocate = gtk_tree_view_size_allocate;
widget_class->expose_event = gtk_tree_view_expose;
widget_class->motion_notify_event = gtk_tree_view_motion;
widget_class->enter_notify_event = gtk_tree_view_enter_notify;
widget_class->leave_notify_event = gtk_tree_view_leave_notify;
widget_class->button_press_event = gtk_tree_view_button_press;
widget_class->button_release_event = gtk_tree_view_button_release;
widget_class->draw_focus = gtk_tree_view_draw_focus;
widget_class->focus_in_event = gtk_tree_view_focus_in;
widget_class->focus_out_event = gtk_tree_view_focus_out;
widget_class->drag_begin = gtk_tree_view_drag_begin;
widget_class->drag_end = gtk_tree_view_drag_end;
widget_class->drag_data_get = gtk_tree_view_drag_data_get;
widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
widget_class->drag_leave = gtk_tree_view_drag_leave;
widget_class->drag_motion = gtk_tree_view_drag_motion;
widget_class->drag_drop = gtk_tree_view_drag_drop;
widget_class->drag_data_received = gtk_tree_view_drag_data_received;
container_class->forall = gtk_tree_view_forall;
container_class->remove = gtk_tree_view_remove;
container_class->focus = gtk_tree_view_focus;
class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
widget_class->set_scroll_adjustments_signal =
gtk_signal_new ("set_scroll_adjustments",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
gtk_marshal_VOID__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
}
static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
tree_view->priv = g_new0 (GtkTreeViewPrivate, 1);
GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
tree_view->priv->flags = GTK_TREE_VIEW_IS_LIST | GTK_TREE_VIEW_SHOW_EXPANDERS | GTK_TREE_VIEW_DRAW_KEYFOCUS | GTK_TREE_VIEW_HEADERS_VISIBLE;
tree_view->priv->tab_offset = TREE_VIEW_EXPANDER_WIDTH;
tree_view->priv->n_columns = 0;
tree_view->priv->columns = NULL;
tree_view->priv->button_pressed_node = NULL;
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->prelight_node = NULL;
tree_view->priv->header_height = 1;
tree_view->priv->x_drag = 0;
tree_view->priv->drag_pos = -1;
tree_view->priv->selection = NULL;
tree_view->priv->anchor = NULL;
tree_view->priv->cursor = NULL;
tree_view->priv->pressed_button = -1;
tree_view->priv->press_start_x = -1;
tree_view->priv->press_start_y = -1;
gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
_gtk_tree_view_set_size (tree_view, 0, 0);
}
/* Object methods
*/
static void
gtk_tree_view_finalize (GObject *object)
{
GtkTreeView *tree_view = (GtkTreeView *) object;
if (tree_view->priv->tree)
_gtk_rbtree_free (tree_view->priv->tree);
if (tree_view->priv->scroll_to_path != NULL)
gtk_tree_path_free (tree_view->priv->scroll_to_path);
if (tree_view->priv->drag_dest_row)
gtk_tree_path_free (tree_view->priv->drag_dest_row);
g_free (tree_view->priv);
if (G_OBJECT_CLASS (parent_class)->finalize)
(* G_OBJECT_CLASS (parent_class)->finalize) (object);
}
/* Widget methods
*/
static void
gtk_tree_view_realize_buttons (GtkTreeView *tree_view)
{
GList *list;
GtkTreeViewColumn *column;
GdkWindowAttr attr;
guint attributes_mask;
g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
g_return_if_fail (tree_view->priv->header_window != NULL);
attr.window_type = GDK_WINDOW_CHILD;
attr.wclass = GDK_INPUT_ONLY;
attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attr.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view));
attr.event_mask = (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_KEY_PRESS_MASK);
attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
attr.cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
tree_view->priv->cursor_drag = attr.cursor;
attr.y = 0;
attr.width = TREE_VIEW_DRAG_WIDTH;
attr.height = tree_view->priv->header_height;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->button)
{
if (column->visible == FALSE)
continue;
if (column->window != NULL)
continue;
gtk_widget_set_parent_window (column->button,
tree_view->priv->header_window);
attr.x = (column->button->allocation.x + column->button->allocation.width) - 3;
column->window = gdk_window_new (tree_view->priv->header_window,
&attr, attributes_mask);
gdk_window_set_user_data (column->window, tree_view);
}
}
}
static void
gtk_tree_view_realize (GtkWidget *widget)
{
GList *tmp_list;
GtkTreeView *tree_view;
GdkGCValues values;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP) &&
tree_view->priv->model)
gtk_tree_view_setup_model (tree_view);
gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
/* Make the window for the tree */
attributes.x = 0;
attributes.y = 0;
attributes.width = tree_view->priv->width;
attributes.height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
attributes.event_mask = GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
gtk_widget_get_events (widget);
tree_view->priv->bin_window = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->bin_window, widget);
/* Make the column header window */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
attributes.height = tree_view->priv->header_height;
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK) |
gtk_widget_get_events (widget);
tree_view->priv->header_window = gdk_window_new (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->header_window, widget);
values.foreground = (widget->style->white.pixel==0 ?
widget->style->black:widget->style->white);
values.function = GDK_XOR;
values.subwindow_mode = GDK_INCLUDE_INFERIORS;
tree_view->priv->xor_gc = gdk_gc_new_with_values (widget->window,
&values,
GDK_GC_FOREGROUND |
GDK_GC_FUNCTION |
GDK_GC_SUBWINDOW);
/* Add them all up. */
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
}
gtk_tree_view_realize_buttons (GTK_TREE_VIEW (widget));
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, -1);
if (tree_view->priv->scroll_to_path != NULL ||
tree_view->priv->scroll_to_column != NULL)
{
gtk_tree_view_scroll_to_cell (tree_view,
tree_view->priv->scroll_to_path,
tree_view->priv->scroll_to_column,
tree_view->priv->scroll_to_row_align,
tree_view->priv->scroll_to_col_align);
if (tree_view->priv->scroll_to_path)
{
gtk_tree_path_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
tree_view->priv->scroll_to_column = NULL;
}
}
static void
gtk_tree_view_unrealize (GtkWidget *widget)
{
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->scroll_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
if (tree_view->priv->open_dest_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
/* FIXME where do we clear column->window for each column? */
gdk_window_set_user_data (tree_view->priv->bin_window, NULL);
gdk_window_destroy (tree_view->priv->bin_window);
tree_view->priv->bin_window = NULL;
gdk_window_set_user_data (tree_view->priv->header_window, NULL);
gdk_window_destroy (tree_view->priv->header_window);
tree_view->priv->header_window = NULL;
gdk_cursor_destroy (tree_view->priv->cursor_drag);
gdk_gc_destroy (tree_view->priv->xor_gc);
/* GtkWidget::unrealize destroys children and widget->window */
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_tree_view_map_buttons (GtkTreeView *tree_view)
{
GList *list;
g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
{
GtkTreeViewColumn *column;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (GTK_WIDGET_VISIBLE (column->button) &&
!GTK_WIDGET_MAPPED (column->button))
gtk_widget_map (column->button);
}
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->visible == FALSE)
continue;
if (column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE)
{
gdk_window_raise (column->window);
gdk_window_show (column->window);
}
else
gdk_window_hide (column->window);
}
gdk_window_show (tree_view->priv->header_window);
}
}
static void
gtk_tree_view_map (GtkWidget *widget)
{
GList *tmp_list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
if (!GTK_WIDGET_MAPPED (child->widget))
gtk_widget_map (child->widget);
}
}
gdk_window_show (tree_view->priv->bin_window);
gtk_tree_view_map_buttons (tree_view);
gdk_window_show (widget->window);
}
static void
gtk_tree_view_size_request_buttons (GtkTreeView *tree_view)
{
GList *list;
tree_view->priv->header_height = 1;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
{
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkRequisition requisition;
GtkTreeViewColumn *column;
column = list->data;
gtk_widget_size_request (column->button, &requisition);
gtk_tree_view_column_set_width (column,
MAX (column->width, requisition.width));
tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
}
}
}
static void
gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkTreeView *tree_view;
GList *tmp_list;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
requisition->width = 200;
requisition->height = 200;
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
GtkRequisition child_requisition;
tmp_list = tmp_list->next;
if (GTK_WIDGET_VISIBLE (child->widget))
gtk_widget_size_request (child->widget, &child_requisition);
}
gtk_tree_view_size_request_buttons (tree_view);
}
static void
gtk_tree_view_size_allocate_buttons (GtkWidget *widget)
{
GtkTreeView *tree_view;
GList *list;
GList *last_column;
GtkTreeViewColumn *column;
GtkAllocation allocation;
gint width = 0;
tree_view = GTK_TREE_VIEW (widget);
allocation.y = 0;
allocation.height = tree_view->priv->header_height;
for (last_column = g_list_last (tree_view->priv->columns);
last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
last_column = last_column->prev)
;
if (last_column == NULL)
return;
for (list = tree_view->priv->columns; list != last_column; list = list->next)
{
column = list->data;
if (!column->visible)
continue;
allocation.x = width;
allocation.width = column->width;
width += column->width;
gtk_widget_size_allocate (column->button, &allocation);
if (column->window)
gdk_window_move_resize (column->window,
width - TREE_VIEW_DRAG_WIDTH/2, allocation.y,
TREE_VIEW_DRAG_WIDTH, allocation.height);
}
column = list->data;
allocation.x = width;
allocation.width = MAX (widget->allocation.width, tree_view->priv->width) - width;
gtk_widget_size_allocate (column->button, &allocation);
if (column->window)
gdk_window_move_resize (column->window,
allocation.x + allocation.width - TREE_VIEW_DRAG_WIDTH/2,
0,
TREE_VIEW_DRAG_WIDTH, allocation.height);
}
static void
gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GList *tmp_list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
widget->allocation = *allocation;
tree_view = GTK_TREE_VIEW (widget);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkAllocation allocation;
GtkRequisition requisition;
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
allocation.x = child->x;
allocation.y = child->y;
gtk_widget_get_child_requisition (child->widget, &requisition);
allocation.width = requisition.width;
allocation.height = requisition.height;
gtk_widget_size_allocate (child->widget, &allocation);
}
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
gdk_window_move_resize (tree_view->priv->header_window,
0, 0,
MAX (tree_view->priv->width, allocation->width),
tree_view->priv->header_height);
}
/* FIXME I don't think the invariant that the model must be setup
* before touching the buttons is maintained in most of the
* rest of the code, e.g. in realize, so something is wrong
*/
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
gtk_tree_view_size_allocate_buttons (widget);
tree_view->priv->hadjustment->page_size = allocation->width;
tree_view->priv->hadjustment->page_increment = allocation->width / 2;
tree_view->priv->hadjustment->lower = 0;
tree_view->priv->hadjustment->upper = tree_view->priv->width;
if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed");
tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
tree_view->priv->vadjustment->page_increment = (allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
tree_view->priv->vadjustment->lower = 0;
tree_view->priv->vadjustment->upper = tree_view->priv->height;
if (tree_view->priv->vadjustment->value + allocation->height > tree_view->priv->height)
gtk_adjustment_set_value (tree_view->priv->vadjustment,
(gfloat) MAX (tree_view->priv->height - allocation->height, 0));
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
}
static void
gtk_tree_view_draw_node_focus_rect (GtkWidget *widget,
GtkTreePath *path)
{
GtkTreeView *tree_view;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
gint bin_window_width = 0;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree == NULL)
return;
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
/* FIXME need a style function appropriate for this */
gdk_draw_rectangle (tree_view->priv->bin_window,
widget->style->fg_gc[GTK_STATE_NORMAL],
FALSE,
0,
BACKGROUND_FIRST_PIXEL (tree_view, tree, node),
bin_window_width - 2,
BACKGROUND_HEIGHT (node) - 1);
}
GdkPixmap*
gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeIter iter;
GtkRBTree *tree;
GtkRBNode *node;
GtkCellRenderer *cell;
gint i;
gint cell_offset;
GList *list;
GdkRectangle background_area;
GtkWidget *widget;
gint depth;
/* start drawing inside the black outline */
gint x = 1, y = 1;
GdkDrawable *drawable;
gint bin_window_width;
widget = GTK_WIDGET (tree_view);
depth = gtk_tree_path_get_depth (path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return NULL;
if (!gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path))
return NULL;
cell_offset = x;
background_area.y = y;
background_area.height = BACKGROUND_HEIGHT (node);
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
drawable = gdk_pixmap_new (tree_view->priv->bin_window,
bin_window_width + 2,
background_area.height + 2,
-1);
gdk_draw_rectangle (drawable,
widget->style->base_gc[GTK_WIDGET_STATE (widget)],
TRUE,
0, 0,
bin_window_width + 2,
background_area.height + 2);
gdk_draw_rectangle (drawable,
widget->style->black_gc,
FALSE,
0, 0,
bin_window_width + 1,
background_area.height + 1);
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
GdkRectangle cell_area;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
background_area.x = cell_offset;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
cell_area = background_area;
cell_area.y += TREE_VIEW_VERTICAL_SEPARATOR / 2;
cell_area.height -= TREE_VIEW_VERTICAL_SEPARATOR;
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area.x += depth * tree_view->priv->tab_offset;
cell_area.width -= depth * tree_view->priv->tab_offset;
}
gtk_cell_renderer_render (cell,
drawable,
widget,
&background_area,
&cell_area,
NULL,
0);
cell_offset += TREE_VIEW_COLUMN_WIDTH (column);
}
return drawable;
}
/* Warning: Very scary function.
* Modify at your own risk
*/
static gboolean
gtk_tree_view_bin_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTreeView *tree_view;
GtkTreePath *path;
GtkRBTree *tree;
GList *list;
GtkRBNode *node, *last_node = NULL;
GtkRBNode *cursor = NULL;
GtkRBTree *cursor_tree = NULL, *last_tree = NULL;
GtkRBNode *drag_highlight = NULL;
GtkRBTree *drag_highlight_tree = NULL;
GtkTreeIter iter;
GtkCellRenderer *cell;
gint new_y;
gint y_offset, x_offset, cell_offset;
gint i, max_height;
gint depth;
GdkRectangle background_area;
GdkRectangle cell_area;
guint flags;
gboolean last_selected;
gint highlight_x;
gint bin_window_width;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->tree == NULL)
return TRUE;
gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
/* we want to account for a potential HEADER offset.
* That is, if the header exists, we want to offset our event by its
* height to find the right node.
*/
new_y = (event->area.y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):event->area.y;
/* y_offset is the */
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y),
&tree,
&node) + new_y - event->area.y;
if (node == NULL)
return TRUE;
/* See if the last node was selected */
_gtk_rbtree_prev_full (tree, node, &last_tree, &last_node);
last_selected = (last_node && GTK_RBNODE_FLAG_SET (last_node, GTK_RBNODE_IS_SELECTED));
/* find the path for the node */
path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
tree,
node);
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
depth = gtk_tree_path_get_depth (path);
gtk_tree_path_free (path);
if (tree_view->priv->cursor)
_gtk_tree_view_find_node (tree_view, tree_view->priv->cursor, &cursor_tree, &cursor);
if (tree_view->priv->drag_dest_row)
_gtk_tree_view_find_node (tree_view, tree_view->priv->drag_dest_row,
&drag_highlight_tree, &drag_highlight);
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
/* Actually process the expose event. To do this, we want to
* start at the first node of the event, and walk the tree in
* order, drawing each successive node.
*/
do
{
/* Need to think about this more.
if (tree_view->priv->show_expanders)
max_height = MAX (TREE_VIEW_EXPANDER_MIN_HEIGHT, GTK_RBNODE_GET_HEIGHT (node));
else
*/
max_height = BACKGROUND_HEIGHT (node);
x_offset = -event->area.x;
cell_offset = 0;
highlight_x = 0; /* should match x coord of first cell */
background_area.y = y_offset + event->area.y + TREE_VIEW_VERTICAL_SEPARATOR / 2;
background_area.height = max_height - TREE_VIEW_VERTICAL_SEPARATOR;
flags = 0;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
flags |= GTK_CELL_RENDERER_PRELIT;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
{
flags |= GTK_CELL_RENDERER_SELECTED;
/* Draw the selection */
gdk_draw_rectangle (event->window,
GTK_WIDGET (tree_view)->style->bg_gc [GTK_STATE_SELECTED],
TRUE,
event->area.x,
background_area.y - (last_selected?TREE_VIEW_VERTICAL_SEPARATOR:0),
event->area.width,
background_area.height + (last_selected?TREE_VIEW_VERTICAL_SEPARATOR:0));
last_selected = TRUE;
}
else
{
last_selected = FALSE;
}
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
background_area.x = cell_offset;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area = background_area;
cell_area.x += depth*tree_view->priv->tab_offset;
cell_area.width -= depth*tree_view->priv->tab_offset;
/* If we have an expander column, the highlight underline
* starts with that column, so that it indicates which
* level of the tree we're dropping at.
*/
highlight_x = cell_area.x;
gtk_cell_renderer_render (cell,
event->window,
widget,
&background_area,
&cell_area,
&event->area,
flags);
if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
{
gint x, y;
gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, 0);
gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
tree,
node,
x, y);
}
}
else
{
cell_area = background_area;
gtk_cell_renderer_render (cell,
event->window,
widget,
&background_area,
&cell_area,
&event->area,
flags);
}
cell_offset += TREE_VIEW_COLUMN_WIDTH (column);
}
if (node == cursor &&
GTK_WIDGET_HAS_FOCUS (widget))
gtk_tree_view_draw_focus (widget);
if (node == drag_highlight)
{
/* Draw indicator for the drop
*/
gint highlight_y = -1;
switch (tree_view->priv->drag_dest_pos)
{
case GTK_TREE_VIEW_DROP_BEFORE:
highlight_y = background_area.y - TREE_VIEW_VERTICAL_SEPARATOR/2;
break;
case GTK_TREE_VIEW_DROP_AFTER:
highlight_y = background_area.y + background_area.height + TREE_VIEW_VERTICAL_SEPARATOR/2;
break;
case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
gtk_tree_view_draw_node_focus_rect (widget,
tree_view->priv->drag_dest_row);
break;
}
if (highlight_y >= 0)
{
gdk_draw_line (event->window,
widget->style->black_gc,
highlight_x,
highlight_y,
bin_window_width - highlight_x,
highlight_y);
}
}
y_offset += max_height;
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = tree->root;
while (node->left != tree->nil)
node = node->left;
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
cell = gtk_tree_view_get_column (tree_view, 0)->cell;
depth++;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
}
else
{
gboolean done = FALSE;
do
{
node = _gtk_rbtree_next (tree, node);
if (node != NULL)
{
gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
cell = gtk_tree_view_get_column (tree_view, 0)->cell;
done = TRUE;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
}
else
{
GtkTreeIter parent_iter = iter;
gboolean has_parent;
node = tree->parent_node;
tree = tree->parent_tree;
if (tree == NULL)
/* we've run out of tree. It's okay to return though, as
* we'd only break out of the while loop below. */
return TRUE;
has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
&iter,
&parent_iter);
depth--;
/* Sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
}
}
while (!done);
}
}
while (y_offset < event->area.height);
return TRUE;
}
static gboolean
gtk_tree_view_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (event->window == tree_view->priv->bin_window)
return gtk_tree_view_bin_expose (widget, event);
return TRUE;
}
static gboolean
coords_are_over_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in tree window coords */
gint x,
gint y)
{
GdkRectangle arrow;
gint x2;
if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
return FALSE;
arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
arrow.height = BACKGROUND_HEIGHT (node);
gtk_tree_view_get_arrow_xrange (tree_view, &arrow.x, &x2);
arrow.width = x2 - arrow.x;
return (x >= arrow.x &&
x < (arrow.x + arrow.height) &&
y >= arrow.y &&
y < (arrow.y + arrow.height));
}
static void
do_unprelight (GtkTreeView *tree_view,
/* these are in tree window coords */
gint x,
gint y)
{
if (tree_view->priv->prelight_node == NULL)
return;
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
!coords_are_over_arrow (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
x,
y))
/* We need to unprelight the old arrow. */
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
gtk_tree_view_draw_arrow (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
x,
y);
}
tree_view->priv->prelight_node = NULL;
tree_view->priv->prelight_tree = NULL;
}
static void
do_prelight (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in tree window coords */
gint x,
gint y)
{
if (coords_are_over_arrow (tree_view, tree, node, x, y))
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
}
static gboolean
gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkTreeView *tree_view;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
GtkRBTree *old_prelight_tree;
GtkRBNode *old_prelight_node;
tree_view = (GtkTreeView *) widget;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
{
gint x;
gint new_width;
if (event->is_hint || event->window != widget->window)
gtk_widget_get_pointer (widget, &x, NULL);
else
x = event->x;
new_width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos, &x);
if (x != tree_view->priv->x_drag)
{
gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos), new_width);
}
/* FIXME: Do we need to scroll */
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, tree_view->priv->height);
return FALSE;
}
/* Sanity check it */
if (event->window != tree_view->priv->bin_window)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
old_prelight_tree = tree_view->priv->prelight_tree;
old_prelight_node = tree_view->priv->prelight_node;
do_unprelight (tree_view, event->x, event->y);
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
_gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y),
&tree,
&node);
if (node == NULL)
return TRUE;
/* If we are currently pressing down a button, we don't want to prelight anything else. */
if ((tree_view->priv->button_pressed_node != NULL) &&
(tree_view->priv->button_pressed_node != node))
return TRUE;
do_prelight (tree_view, tree, node, event->x, new_y);
if (old_prelight_node != tree_view->priv->prelight_node)
{
if (old_prelight_node)
gtk_tree_view_queue_draw_node (tree_view,
old_prelight_tree,
old_prelight_node,
NULL);
if (tree_view->priv->prelight_node)
gtk_tree_view_queue_draw_node (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
NULL);
}
return TRUE;
}
/* FIXME Is this function necessary? Can I get an enter_notify event
* w/o either an expose event or a mouse motion event?
*/
static gboolean
gtk_tree_view_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkTreeView *tree_view;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
/* Sanity check it */
if (event->window != tree_view->priv->bin_window)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
if ((tree_view->priv->button_pressed_node != NULL) &&
(tree_view->priv->button_pressed_node != node))
return TRUE;
/* find the node internally */
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
_gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y),
&tree,
&node);
if (node == NULL)
return FALSE;
do_prelight (tree_view, tree, node, event->x, new_y);
if (tree_view->priv->prelight_node)
gtk_tree_view_queue_draw_node (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
NULL);
return TRUE;
}
static gboolean
gtk_tree_view_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->prelight_node)
gtk_tree_view_queue_draw_node (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
NULL);
do_unprelight (tree_view, -1000, -1000); /* coords not possibly over an arrow */
return TRUE;
}
static gboolean
gtk_tree_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
GList *list;
GtkTreeViewColumn *column;
gint i;
GdkRectangle background_area;
GdkRectangle cell_area;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (event->window == tree_view->priv->bin_window)
{
GtkRBNode *node;
GtkRBTree *tree;
GtkTreePath *path;
gchar *path_string;
gint depth;
gint new_y;
gint y_offset;
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
/* are we in an arrow? */
if (tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
{
if (event->button == 1)
{
gtk_grab_add (widget);
tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
event->x,
event->y);
}
return TRUE;
}
/* find the node that was clicked */
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y),
&tree,
&node) + new_y - (gint)event->y;
if (node == NULL)
/* We clicked in dead space */
return TRUE;
/* Get the path and the node */
path = _gtk_tree_view_find_path (tree_view, tree, node);
depth = gtk_tree_path_get_depth (path);
background_area.y = y_offset + event->y + TREE_VIEW_VERTICAL_SEPARATOR;
background_area.height = GTK_RBNODE_GET_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR;
background_area.x = 0;
/* Let the cell have a chance at selecting it. */
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
GtkCellRenderer *cell;
GtkTreeIter iter;
if (!column->visible)
continue;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area = background_area;
cell_area.x += depth*tree_view->priv->tab_offset;
cell_area.width -= depth*tree_view->priv->tab_offset;
}
else
{
cell_area = background_area;
}
cell = column->cell;
if ((background_area.x > (gint) event->x) ||
(background_area.y > (gint) event->y) ||
(background_area.x + background_area.width <= (gint) event->x) ||
(background_area.y + background_area.height <= (gint) event->y))
{
background_area.x += background_area.width;
continue;
}
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
path_string = gtk_tree_path_to_string (path);
if (gtk_cell_renderer_event (cell,
(GdkEvent *)event,
widget,
path_string,
&background_area,
&cell_area,
0))
{
g_free (path_string);
gtk_tree_path_free (path);
return TRUE;
}
else
{
g_free (path_string);
break;
}
}
/* Save press to possibly begin a drag
*/
if (tree_view->priv->pressed_button < 0)
{
tree_view->priv->pressed_button = event->button;
tree_view->priv->press_start_x = event->x;
tree_view->priv->press_start_y = event->y;
}
/* Handle the selection */
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
node,
tree,
path,
event->state);
gtk_tree_path_free (path);
return TRUE;
}
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
column = list->data;
if (event->window == column->window &&
column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE &&
column->window)
{
gpointer drag_data;
if (gdk_pointer_grab (column->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, event->time))
return FALSE;
gtk_grab_add (widget);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
/* block attached dnd signal handler */
drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
if (drag_data)
gtk_signal_handler_block_by_data (GTK_OBJECT (widget), drag_data);
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
tree_view->priv->drag_pos = i;
tree_view->priv->x_drag = (column->button->allocation.x + column->button->allocation.width);
}
}
return TRUE;
}
static gboolean
gtk_tree_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->pressed_button == event->button)
tree_view->priv->pressed_button = -1;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
{
gpointer drag_data;
gint width;
gint x;
gint i;
i = tree_view->priv->drag_pos;
tree_view->priv->drag_pos = -1;
/* unblock attached dnd signal handler */
drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
if (drag_data)
gtk_signal_handler_unblock_by_data (GTK_OBJECT (widget), drag_data);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
gtk_widget_get_pointer (widget, &x, NULL);
gtk_grab_remove (widget);
gdk_pointer_ungrab (event->time);
width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), i, &x);
gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), i), width);
return FALSE;
}
if (tree_view->priv->button_pressed_node == NULL)
return FALSE;
if (event->button == 1)
{
gtk_grab_remove (widget);
if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
{
GtkTreePath *path;
GtkTreeIter iter;
/* Actually activate the node */
if (tree_view->priv->button_pressed_node->children == NULL)
{
GtkTreeIter child;
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node);
tree_view->priv->button_pressed_node->children = _gtk_rbtree_new ();
tree_view->priv->button_pressed_node->children->parent_tree = tree_view->priv->button_pressed_tree;
tree_view->priv->button_pressed_node->children->parent_node = tree_view->priv->button_pressed_node;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
tree_view->priv->button_pressed_node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
FALSE,
GTK_WIDGET_REALIZED (widget));
}
else
{
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_node->children,
tree_view->priv->button_pressed_node->children->root);
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
gtk_tree_view_discover_dirty (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (tree_view->priv->button_pressed_node->children);
}
gtk_tree_path_free (path);
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, -1);
}
tree_view->priv->button_pressed_node = NULL;
}
return TRUE;
}
static void
gtk_tree_view_draw_focus (GtkWidget *widget)
{
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS))
return;
if (tree_view->priv->cursor == NULL)
return;
gtk_tree_view_draw_node_focus_rect (widget, tree_view->priv->cursor);
}
static gint
gtk_tree_view_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
/* FIXME don't redraw so much */
gtk_widget_queue_draw (widget);
return FALSE;
}
static gint
gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
/* FIXME don't redraw so much */
gtk_widget_queue_draw (widget);
return FALSE;
}
/* FIXME: It would be neat to someday make the headers a seperate widget that
* can be shared between various apps. Wishful thinking, though...
*/
/* Returns TRUE if the focus is within the headers, after the focus operation is
* done
*/
static gboolean
gtk_tree_view_header_focus (GtkTreeView *tree_view,
GtkDirectionType dir)
{
GtkWidget *focus_child;
GtkContainer *container;
GList *last_column, *first_column;
GList *tmp_list;
if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
return FALSE;
focus_child = GTK_CONTAINER (tree_view)->focus_child;
container = GTK_CONTAINER (tree_view);
for (last_column = g_list_last (tree_view->priv->columns);
last_column &&
!(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) &&
GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button);
last_column = last_column->prev)
;
for (first_column = tree_view->priv->columns;
first_column &&
!(GTK_TREE_VIEW_COLUMN (first_column->data)->visible) &&
GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button);
first_column = first_column->next)
;
/* no headers are visible, or are focussable. We can't focus in or out.
* I wonder if focussable is a real word...
*/
if (last_column == NULL)
return FALSE;
/* First thing we want to handle is entering and leaving the headers.
*/
switch (dir)
{
case GTK_DIR_TAB_BACKWARD:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (first_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_TAB_FORWARD:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (last_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_LEFT:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (first_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_RIGHT:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (last_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_UP:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
}
else
{
focus_child = NULL;
}
goto cleanup;
case GTK_DIR_DOWN:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
}
else
{
focus_child = NULL;
}
goto cleanup;
}
/* We need to move the focus to the next button. */
if (focus_child)
{
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
{
if (gtk_container_focus (GTK_CONTAINER (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button), dir))
{
/* The focus moves inside the button. */
/* This is probably a great example of bad UI */
goto cleanup;
}
break;
}
/* We need to move the focus among the row of buttons. */
while (tmp_list)
{
GtkTreeViewColumn *column;
if (dir == GTK_DIR_RIGHT || dir == GTK_DIR_TAB_FORWARD)
tmp_list = tmp_list->next;
else
tmp_list = tmp_list->prev;
if (tmp_list == NULL)
{
g_warning ("Internal button not found");
goto cleanup;
}
column = tmp_list->data;
if (column->button &&
column->visible &&
GTK_WIDGET_CAN_FOCUS (column->button))
{
focus_child = column->button;
gtk_widget_grab_focus (column->button);
break;
}
}
}
cleanup:
/* if focus child is non-null, we assume it's been set to the current focus child
*/
if (focus_child)
{
/* If the following isn't true, then the view is smaller then the scrollpane.
*/
if ((focus_child->allocation.x + focus_child->allocation.width) <=
(tree_view->priv->hadjustment->upper))
{
/* Scroll to the button, if needed */
if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) <
(focus_child->allocation.x + focus_child->allocation.width))
gtk_adjustment_set_value (tree_view->priv->hadjustment,
focus_child->allocation.x + focus_child->allocation.width -
tree_view->priv->hadjustment->page_size);
else if (tree_view->priv->hadjustment->value > focus_child->allocation.x)
gtk_adjustment_set_value (tree_view->priv->hadjustment,
focus_child->allocation.x);
}
}
return (focus_child != NULL);
}
/* WARNING: Scary function */
static gint
gtk_tree_view_focus (GtkContainer *container,
GtkDirectionType direction)
{
GtkTreeView *tree_view;
GtkWidget *focus_child;
GdkEvent *event;
GtkRBTree *cursor_tree;
GtkRBNode *cursor_node;
g_return_val_if_fail (container != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (container), FALSE);
g_return_val_if_fail (GTK_WIDGET_VISIBLE (container), FALSE);
tree_view = GTK_TREE_VIEW (container);
if (!GTK_WIDGET_IS_SENSITIVE (container))
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
focus_child = container->focus_child;
/* Case 1. Headers have focus. */
if (focus_child)
{
switch (direction)
{
case GTK_DIR_LEFT:
case GTK_DIR_TAB_BACKWARD:
return (gtk_tree_view_header_focus (tree_view, direction));
case GTK_DIR_UP:
return FALSE;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_RIGHT:
case GTK_DIR_DOWN:
if (direction != GTK_DIR_DOWN)
{
if (gtk_tree_view_header_focus (tree_view, direction))
return TRUE;
}
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_widget_grab_focus (GTK_WIDGET (container));
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
/* if there is no keyboard focus yet, we select the first node
*/
if (tree_view->priv->cursor == NULL)
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
}
/* Case 2. We don't have focus at all. */
if (!GTK_WIDGET_HAS_FOCUS (container))
{
if ((direction == GTK_DIR_TAB_FORWARD) ||
(direction == GTK_DIR_RIGHT) ||
(direction == GTK_DIR_DOWN))
{
if (gtk_tree_view_header_focus (tree_view, direction))
return TRUE;
}
/* The headers didn't want the focus, so we take it. */
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_widget_grab_focus (GTK_WIDGET (container));
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
if (tree_view->priv->cursor == NULL)
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* Case 3. We have focus already, but no cursor. We pick the first one
* and run with it. */
if (tree_view->priv->cursor == NULL)
{
/* We lost our cursor somehow. Arbitrarily select the first node, and
* return
*/
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
0.0);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* Case 3. We have focus already. Move the cursor. */
if (direction == GTK_DIR_LEFT)
{
gfloat val;
val = tree_view->priv->hadjustment->value - tree_view->priv->hadjustment->page_size/2;
val = MAX (val, 0.0);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
if (direction == GTK_DIR_RIGHT)
{
gfloat val;
val = tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size/2;
val = MIN (tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size, val);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
cursor_tree = NULL;
cursor_node = NULL;
_gtk_tree_view_find_node (tree_view, tree_view->priv->cursor,
&cursor_tree,
&cursor_node);
switch (direction)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
_gtk_rbtree_prev_full (cursor_tree,
cursor_node,
&cursor_tree,
&cursor_node);
break;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
_gtk_rbtree_next_full (cursor_tree,
cursor_node,
&cursor_tree,
&cursor_node);
break;
default:
break;
}
if (cursor_node)
{
GdkModifierType state = 0;
event = gtk_get_current_event ();
if (event)
gdk_event_get_state (event, &state);
if (event)
gdk_event_free (event);
gtk_tree_path_free (tree_view->priv->cursor);
tree_view->priv->cursor = _gtk_tree_view_find_path (tree_view,
cursor_tree,
cursor_node);
if (tree_view->priv->cursor)
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
cursor_node,
cursor_tree,
tree_view->priv->cursor,
state);
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* At this point, we've progressed beyond the edge of the rows. */
if ((direction == GTK_DIR_LEFT) ||
(direction == GTK_DIR_TAB_BACKWARD) ||
(direction == GTK_DIR_UP))
/* We can't go back anymore. Try the headers */
return (gtk_tree_view_header_focus (tree_view, direction));
/* we've reached the end of the tree. Go on. */
return FALSE;
}
/* Container method
*/
static void
gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkTreeView *tree_view;
GtkTreeViewChild *child = NULL;
GList *tmp_list;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (container));
tree_view = GTK_TREE_VIEW (container);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
if (child->widget == widget)
break;
tmp_list = tmp_list->next;
}
if (tmp_list)
{
gtk_widget_unparent (widget);
tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
g_list_free_1 (tmp_list);
g_free (child);
}
}
static void
gtk_tree_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkTreeView *tree_view;
GtkTreeViewChild *child = NULL;
GtkTreeViewColumn *column;
GList *tmp_list;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (container));
g_return_if_fail (callback != NULL);
tree_view = GTK_TREE_VIEW (container);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
tmp_list = tmp_list->next;
(* callback) (child->widget, callback_data);
}
if (include_internals == FALSE)
return;
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
{
column = tmp_list->data;
if (column->button)
(* callback) (column->button, callback_data);
}
}
/* TreeModel Callbacks
*/
static void
gtk_tree_view_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
gint height;
gboolean dirty_marked;
g_return_if_fail (path != NULL || iter != NULL);
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
return;
dirty_marked = gtk_tree_view_discover_dirty_iter (tree_view,
iter,
gtk_tree_path_get_depth (path),
&height);
if (GTK_RBNODE_GET_HEIGHT (node) != height + TREE_VIEW_VERTICAL_SEPARATOR)
{
_gtk_rbtree_node_set_height (tree, node, height + TREE_VIEW_VERTICAL_SEPARATOR);
gtk_widget_queue_resize (GTK_WIDGET (data));
return;
}
if (dirty_marked)
gtk_widget_queue_resize (GTK_WIDGET (data));
else
{
gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
}
}
static void
gtk_tree_view_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *) data;
gint *indices;
GtkRBTree *tmptree, *tree;
GtkRBNode *tmpnode = NULL;
gint max_height;
gint depth;
gint i = 0;
tmptree = tree = tree_view->priv->tree;
g_return_if_fail (path != NULL || iter != NULL);
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
depth = gtk_tree_path_get_depth (path);
indices = gtk_tree_path_get_indices (path);
/* First, find the parent tree */
while (i < depth - 1)
{
if (tmptree == NULL)
{
/* We aren't showing the node */
return;
}
tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
if (tmpnode == NULL)
{
g_warning ("A node was inserted with a parent that's not in the tree.\n" \
"This possibly means that a GtkTreeModel inserted a child node\n" \
"before the parent was inserted.");
return;
}
else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
{
/* FIXME enforce correct behavior on model, probably */
/* In theory, the model should have emitted child_toggled here. We
* try to catch it anyway, just to be safe, in case the model hasn't.
*/
GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
tree,
tmpnode);
gtk_tree_view_child_toggled (model, tmppath, NULL, data);
gtk_tree_path_free (tmppath);
return;
}
tmptree = tmpnode->children;
tree = tmptree;
i++;
}
if (tree == NULL)
return;
/* next, update the selection */
if (tree_view->priv->anchor)
{
gint *select_indices = gtk_tree_path_get_indices (tree_view->priv->anchor);
gint select_depth = gtk_tree_path_get_depth (tree_view->priv->anchor);
for (i = 0; i < depth && i < select_depth; i++)
{
if (indices[i] < select_indices[i])
{
select_indices[i]++;
break;
}
else if (indices[i] > select_indices[i])
break;
else if (i == depth - 1)
{
select_indices[i]++;
break;
}
}
}
/* ref the node */
gtk_tree_model_ref_iter (tree_view->priv->model, iter);
max_height = gtk_tree_view_insert_iter_height (tree_view,
tree,
iter,
depth);
if (indices[depth - 1] == 0)
{
tmpnode = _gtk_rbtree_find_count (tree, 1);
_gtk_rbtree_insert_before (tree, tmpnode, max_height);
}
else
{
tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
_gtk_rbtree_insert_after (tree, tmpnode, max_height);
}
_gtk_tree_view_set_size (tree_view, -1, tree_view->priv->height + max_height);
}
static void
gtk_tree_view_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkTreeIter real_iter;
gboolean has_child;
GtkRBTree *tree;
GtkRBNode *node;
g_return_if_fail (path != NULL || iter != NULL);
if (iter)
real_iter = *iter;
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
else if (iter == NULL)
gtk_tree_model_get_iter (model, &real_iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
return;
has_child = gtk_tree_model_iter_has_child (model, &real_iter);
/* Sanity check.
*/
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
return;
if (has_child)
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
else
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
{
GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
break;
}
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
else
{
/* FIXME: Just redraw the node */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
}
static void
gtk_tree_view_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
GList *list;
g_return_if_fail (path != NULL);
if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
return;
/* next, update the selection */
if (tree_view->priv->anchor)
{
gint i;
gint depth = gtk_tree_path_get_depth (path);
gint *indices = gtk_tree_path_get_indices (path);
gint select_depth = gtk_tree_path_get_depth (tree_view->priv->anchor);
gint *select_indices = gtk_tree_path_get_indices (tree_view->priv->anchor);
if (gtk_tree_path_compare (path, tree_view->priv->anchor) == 0)
{
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED) &&
tree_view->priv->selection)
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->selection),
"selection_changed");
}
else
{
for (i = 0; i < depth && i < select_depth; i++)
{
if (indices[i] < select_indices[i])
{
select_indices[i] = MAX (select_indices[i], 0);
break;
}
else if (indices[i] > select_indices[i])
break;
else if (i == depth - 1)
{
select_indices[i] = MAX (select_indices[i], 0);
break;
}
}
}
}
for (list = tree_view->priv->columns; list; list = list->next)
if (((GtkTreeViewColumn *)list->data)->visible &&
((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
((GtkTreeViewColumn *)list->data)->dirty = TRUE;
if (tree->root->count == 1)
_gtk_rbtree_remove (tree);
else
_gtk_rbtree_remove_node (tree, node);
_gtk_tree_view_set_size (GTK_TREE_VIEW (data), -1, -1);
}
/* Internal tree functions */
static gint
gtk_tree_view_insert_iter_height (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkTreeViewColumn *column;
GtkCellRenderer *cell;
GList *list;
gint max_height = 0;
gint i;
i = 0;
/* do stuff with node */
for (list = tree_view->priv->columns; list; list = list->next)
{
gint height = 0, width = 0;
column = list->data;
if (!column->visible)
continue;
if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
{
++i;
continue;
}
cell = column->cell;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &height);
max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
gtk_tree_view_column_set_width (column,
MAX (column->width, depth * tree_view->priv->tab_offset + width));
else
gtk_tree_view_column_set_width (column,
MAX (column->width, width));
++i;
}
return max_height;
}
static void
gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse,
gboolean calc_bounds)
{
GtkRBNode *temp = NULL;
gint max_height;
do
{
max_height = 0;
if (calc_bounds)
max_height = gtk_tree_view_insert_iter_height (tree_view,
tree,
iter,
depth);
gtk_tree_model_ref_iter (tree_view->priv->model, iter);
temp = _gtk_rbtree_insert_after (tree, temp, max_height);
if (recurse)
{
GtkTreeIter child;
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
{
temp->children = _gtk_rbtree_new ();
temp->children->parent_tree = tree;
temp->children->parent_node = temp;
gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse, calc_bounds);
}
}
if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
{
if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
temp->flags ^= GTK_RBNODE_IS_PARENT;
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
}
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static void
gtk_tree_view_calc_size (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkRBNode *temp;
GtkTreeIter child;
GtkCellRenderer *cell;
GList *list;
GtkTreeViewColumn *column;
gint max_height;
gint i;
TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
temp = tree->root;
while (temp->left != tree->nil)
temp = temp->left;
do
{
max_height = 0;
/* Do stuff with node */
for (list = tree_view->priv->columns, i = 0; i < tree_view->priv->n_columns; list = list->next, i++)
{
gint height = 0, width = 0;
column = list->data;
if (!column->visible)
continue;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
cell = column->cell;
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &height);
max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height);
/* FIXME: I'm getting the width of all nodes here. )-: */
if (column->dirty == FALSE || column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
continue;
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
gtk_tree_view_column_set_width (column,
MAX (column->width, depth * tree_view->priv->tab_offset + width));
else
gtk_tree_view_column_set_width (column, MAX (column->width, width));
}
_gtk_rbtree_node_set_height (tree, temp, max_height);
if (temp->children != NULL &&
gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
gtk_tree_view_calc_size (tree_view, temp->children, &child, depth + 1);
temp = _gtk_rbtree_next (tree, temp);
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static gboolean
gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
GtkTreeIter *iter,
gint depth,
gint *height)
{
GtkCellRenderer *cell;
GtkTreeViewColumn *column;
GList *list;
gint i;
gint retval = FALSE;
gint tmpheight;
if (height)
*height = 0;
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
gint width;
column = list->data;
if (column->dirty == TRUE || column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
continue;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
if (height)
{
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &tmpheight);
*height = MAX (*height, tmpheight);
}
else
{
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, NULL);
}
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (depth * tree_view->priv->tab_offset + width > column->width)
{
column->dirty = TRUE;
retval = TRUE;
}
}
else
{
if (width > column->width)
{
column->dirty = TRUE;
retval = TRUE;
}
}
}
return retval;
}
static void
gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkRBNode *temp = tree->root;
GtkTreeViewColumn *column;
GList *list;
GtkTreeIter child;
gboolean is_all_dirty;
TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
while (temp->left != tree->nil)
temp = temp->left;
do
{
is_all_dirty = TRUE;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->dirty == FALSE)
{
is_all_dirty = FALSE;
break;
}
}
if (is_all_dirty)
return;
gtk_tree_view_discover_dirty_iter (tree_view,
iter,
depth,
FALSE);
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
temp->children != NULL)
gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
temp = _gtk_rbtree_next (tree, temp);
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static void
gtk_tree_view_check_dirty (GtkTreeView *tree_view)
{
GtkTreePath *path;
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
GtkTreeIter iter;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->dirty)
{
dirty = TRUE;
if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
gtk_tree_view_column_set_width (column, MAX (column->button->requisition.width, 1));
}
}
}
if (dirty == FALSE)
return;
path = gtk_tree_path_new_root ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
gtk_tree_view_calc_size (tree_view, tree_view->priv->tree, &iter, 1);
_gtk_tree_view_set_size (tree_view, -1, -1);
}
gtk_tree_path_free (path);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
column->dirty = FALSE;
}
}
static void
gtk_tree_view_create_button (GtkTreeView *tree_view,
gint i)
{
GtkWidget *button;
GtkTreeViewColumn *column;
column = g_list_nth (tree_view->priv->columns, i)->data;
gtk_widget_push_composite_child ();
button = column->button = gtk_button_new ();
gtk_widget_pop_composite_child ();
gtk_widget_set_parent (button, GTK_WIDGET (tree_view));
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_tree_view_button_clicked,
(gpointer) tree_view);
gtk_widget_show (button);
}
static void
gtk_tree_view_create_buttons (GtkTreeView *tree_view)
{
GtkWidget *alignment;
GtkWidget *label;
GList *list;
GtkTreeViewColumn *column;
gint i;
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
column = list->data;
if (column->button != NULL)
continue;
gtk_tree_view_create_button (tree_view, i);
switch (column->justification)
{
case GTK_JUSTIFY_LEFT:
alignment = gtk_alignment_new (0.0, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_RIGHT:
alignment = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_CENTER:
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_FILL:
default:
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
break;
}
if (column->child)
label = column->child;
else
{
label = gtk_label_new (column->title);
gtk_widget_show (label);
}
gtk_container_add (GTK_CONTAINER (alignment), label);
gtk_container_add (GTK_CONTAINER (column->button), alignment);
gtk_widget_show (alignment);
}
gtk_tree_view_size_request_buttons (tree_view);
if (GTK_WIDGET_REALIZED (tree_view))
gtk_tree_view_realize_buttons (tree_view);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_tree_view_map_buttons (tree_view);
}
static void
gtk_tree_view_button_clicked (GtkWidget *widget,
gpointer data)
{
GList *list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (data));
tree_view = GTK_TREE_VIEW (data);
/* find the column whose button was pressed */
for (list = tree_view->priv->columns; list; list = list->next)
if (GTK_TREE_VIEW_COLUMN (list->data)->button == widget)
break;
if (list)
gtk_tree_view_column_clicked (GTK_TREE_VIEW_COLUMN (list->data));
}
/* Make sure the node is visible vertically */
static void
gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
gint offset;
offset = _gtk_rbtree_node_find_offset (tree, node);
/* we reverse the order, b/c in the unusual case of the
* node's height being taller then the visible area, we'd rather
* have the node flush to the top
*/
if (offset + GTK_RBNODE_GET_HEIGHT (node) >
tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
offset + GTK_RBNODE_GET_HEIGHT (node) -
tree_view->priv->vadjustment->page_size);
if (offset < tree_view->priv->vadjustment->value)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
offset);
}
/* This function could be more efficient.
* I'll optimize it if profiling seems to imply that
* it's important
*/
GtkTreePath *
_gtk_tree_view_find_path (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
GtkTreePath *path;
GtkRBTree *tmp_tree;
GtkRBNode *tmp_node, *last;
gint count;
path = gtk_tree_path_new ();
g_return_val_if_fail (node != NULL, path);
g_return_val_if_fail (node != tree->nil, path);
count = 1 + node->left->count;
last = node;
tmp_node = node->parent;
tmp_tree = tree;
while (tmp_tree)
{
while (tmp_node != tmp_tree->nil)
{
if (tmp_node->right == last)
count += 1 + tmp_node->left->count;
last = tmp_node;
tmp_node = tmp_node->parent;
}
gtk_tree_path_prepend_index (path, count - 1);
last = tmp_tree->parent_node;
tmp_tree = tmp_tree->parent_tree;
if (last)
{
count = 1 + last->left->count;
tmp_node = last->parent;
}
}
return path;
}
/* Returns whether or not it's a parent, or not */
gboolean
_gtk_tree_view_find_node (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree **tree,
GtkRBNode **node)
{
GtkRBNode *tmpnode = NULL;
GtkRBTree *tmptree = tree_view->priv->tree;
gint *indices = gtk_tree_path_get_indices (path);
gint depth = gtk_tree_path_get_depth (path);
gint i = 0;
*node = NULL;
*tree = NULL;
do
{
if (tmptree == NULL)
{
*node = tmpnode;
*tree = tmptree;
return TRUE;
}
tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
if (++i >= depth)
{
*node = tmpnode;
*tree = tmptree;
return FALSE;
}
tmptree = tmpnode->children;
}
while (1);
}
static void
gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GdkRectangle *clip_rect)
{
GdkRectangle rect;
if (!GTK_WIDGET_REALIZED (tree_view))
return;
rect.x = 0;
rect.width = tree_view->priv->width;
rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
rect.height = BACKGROUND_HEIGHT (node);
if (clip_rect)
{
GdkRectangle new_rect;
gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
}
else
{
gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
}
}
static void
gtk_tree_view_queue_draw_path (GtkTreeView *tree_view,
GtkTreePath *path,
GdkRectangle *clip_rect)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree)
gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
}
/* x and y are the mouse position
*/
static void
gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gint x,
gint y)
{
GdkRectangle area;
GtkStateType state;
GtkWidget *widget;
gint x_offset = 0;
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
return;
widget = GTK_WIDGET (tree_view);
gtk_tree_view_get_arrow_xrange (tree_view, &x_offset, NULL);
area.x = x_offset;
area.y = CELL_FIRST_PIXEL (tree_view, tree, node);
area.width = tree_view->priv->tab_offset - 2;
area.height = CELL_HEIGHT (node);
if (node == tree_view->priv->button_pressed_node)
{
if (x >= area.x && x <= (area.x + area.width) &&
y >= area.y && y <= (area.y + area.height))
state = GTK_STATE_ACTIVE;
else
state = GTK_STATE_NORMAL;
}
else
{
state = (node==tree_view->priv->prelight_node&&GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)?GTK_STATE_PRELIGHT:GTK_STATE_NORMAL);
}
/* FIXME expander size should come from a style property */
#define EXPANDER_SIZE 8
gtk_paint_expander (widget->style,
tree_view->priv->bin_window,
state,
&area,
widget,
"treeview",
area.x,
(area.y + (area.height - EXPANDER_SIZE) / 2 - (area.height + 1) % 2),
node->children != NULL);
#undef EXPANDER_SIZE
}
void
_gtk_tree_view_set_size (GtkTreeView *tree_view,
gint width,
gint height)
{
GList *list;
GtkTreeViewColumn *column;
gint i;
if (width == tree_view->priv->width &&
height == tree_view->priv->height)
return;
if (tree_view->priv->model == NULL)
{
tree_view->priv->width = width;
tree_view->priv->height = height;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return;
}
if (width == -1)
{
width = 0;
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
column = list->data;
if (!column->visible)
continue;
width += TREE_VIEW_COLUMN_WIDTH (column);
}
}
if (height == -1)
height = tree_view->priv->tree->root->offset + TREE_VIEW_VERTICAL_SEPARATOR;
tree_view->priv->width = width;
tree_view->priv->height = height;
if (tree_view->priv->hadjustment->upper != tree_view->priv->width)
{
tree_view->priv->hadjustment->upper = tree_view->priv->width;
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed");
}
if (tree_view->priv->vadjustment->upper != tree_view->priv->height)
{
tree_view->priv->vadjustment->upper = tree_view->priv->height;
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
}
if (GTK_WIDGET_REALIZED (tree_view))
{
gdk_window_resize (tree_view->priv->bin_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), height + TREE_VIEW_HEADER_HEIGHT (tree_view));
gdk_window_resize (tree_view->priv->header_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), tree_view->priv->header_height);
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/* this function returns the new width of the column being resized given
* the column and x position of the cursor; the x cursor position is passed
* in as a pointer and automagicly corrected if it's beyond min/max limits
*/
static gint
gtk_tree_view_new_column_width (GtkTreeView *tree_view,
gint i,
gint *x)
{
GtkTreeViewColumn *column;
gint width;
/* first translate the x position from widget->window
* to clist->clist_window
*/
column = g_list_nth (tree_view->priv->columns, i)->data;
width = *x - column->button->allocation.x;
/* Clamp down the value */
if (column->min_width == -1)
width = MAX (column->button->requisition.width,
width);
else
width = MAX (column->min_width,
width);
if (column->max_width != -1)
width = MIN (width, column->max_width != -1);
*x = column->button->allocation.x + width;
return width;
}
/* Callbacks */
static void
gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view)
{
if (GTK_WIDGET_REALIZED (tree_view))
{
gdk_window_move (tree_view->priv->bin_window,
- tree_view->priv->hadjustment->value,
- tree_view->priv->vadjustment->value);
gdk_window_move (tree_view->priv->header_window,
- tree_view->priv->hadjustment->value,
0);
gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
gdk_window_process_updates (tree_view->priv->header_window, TRUE);
}
}
/* Public methods
*/
/**
* gtk_tree_view_new:
*
* Creates a new #GtkTreeView widget.
*
* Return value: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new (void)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ()));
return GTK_WIDGET (tree_view);
}
/**
* gtk_tree_view_new_with_model:
* @model: the model.
*
* Creates a new #GtkTreeView widget with the model initialized to @model.
*
* Return value: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new_with_model (GtkTreeModel *model)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ()));
gtk_tree_view_set_model (tree_view, model);
return GTK_WIDGET (tree_view);
}
/**
* gtk_tree_view_get_model:
* @tree_view: a #GtkTreeView
*
* Returns the model the the #GtkTreeView is based on. Returns NULL if the
* model is unset.
*
* Return value: A #GtkTreeModel, or NULL if none is currently being used.
**/
GtkTreeModel *
gtk_tree_view_get_model (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->model;
}
static void
gtk_tree_view_setup_model (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkTreeIter iter;
tree_view->priv->tree = _gtk_rbtree_new ();
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"changed",
gtk_tree_view_changed,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"inserted",
gtk_tree_view_inserted,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"child_toggled",
gtk_tree_view_child_toggled,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"deleted",
gtk_tree_view_deleted,
tree_view);
if (tree_view->priv->columns == NULL)
return;
path = gtk_tree_path_new_root ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE, GTK_WIDGET_REALIZED (tree_view));
}
gtk_tree_path_free (path);
gtk_tree_view_create_buttons (tree_view);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP);
}
/**
* gtk_tree_view_set_model:
* @tree_view: A #GtkTreeNode.
* @model: The model.
*
* Sets the model for a #GtkTreeView. If the @tree_view already has a model
* set, it will remove it before setting the new model. If @model is NULL, then
* it will unset the old model.
**/
void
gtk_tree_view_set_model (GtkTreeView *tree_view,
GtkTreeModel *model)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->model != NULL)
{
/* No longer do this. */
#if 0
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->button)
{
gtk_widget_unparent (column->button);
gdk_window_set_user_data (column->window, NULL);
gdk_window_destroy (column->window);
}
}
#endif
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
{
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_changed,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_inserted,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_child_toggled,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_deleted,
tree_view);
_gtk_rbtree_free (tree_view->priv->tree);
}
#if 0
g_list_free (tree_view->priv->columns);
tree_view->priv->columns = NULL;
#endif
if (tree_view->priv->drag_dest_row)
gtk_tree_path_free (tree_view->priv->drag_dest_row);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP);
}
tree_view->priv->model = model;
if (model == NULL)
{
tree_view->priv->tree = NULL;
if (GTK_WIDGET_REALIZED (tree_view))
_gtk_tree_view_set_size (tree_view, 0, 0);
return;
}
else if (GTK_WIDGET_REALIZED (tree_view))
{
gtk_tree_view_setup_model (tree_view);
_gtk_tree_view_set_size (tree_view, -1, -1);
}
}
/**
* gtk_tree_view_get_selection:
* @tree_view: A #GtkTreeView.
*
* Gets the #GtkTreeSelection associated with @tree_view.
*
* Return value: A #GtkTreeSelection object.
**/
GtkTreeSelection *
gtk_tree_view_get_selection (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
return tree_view->priv->selection;
}
/**
* gtk_tree_view_get_hadjustment:
* @tree_view: A #GtkTreeView
*
* Gets the #GtkAdjustment currently being used for the horizontal aspect.
*
* Return value: A #GtkAdjustment object, or NULL if none is currently being
* used.
**/
GtkAdjustment *
gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->hadjustment == NULL)
gtk_tree_view_set_hadjustment (tree_view, NULL);
return tree_view->priv->hadjustment;
}
/**
* gtk_tree_view_set_hadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: The #GtkAdjustment to set, or NULL
*
* Sets the #GtkAdjustment for the current horizontal aspect.
**/
void
gtk_tree_view_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_set_adjustments (tree_view,
adjustment,
tree_view->priv->vadjustment);
}
/**
* gtk_tree_view_get_vadjustment:
* @tree_view: A #GtkTreeView
*
* Gets the #GtkAdjustment currently being used for the vertical aspect.
*
* Return value: A #GtkAdjustment object, or NULL if none is currently being
* used.
**/
GtkAdjustment *
gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->vadjustment == NULL)
gtk_tree_view_set_vadjustment (tree_view, NULL);
return tree_view->priv->vadjustment;
}
/**
* gtk_tree_view_set_vadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: The #GtkAdjustment to set, or NULL
*
* Sets the #GtkAdjustment for the current vertical aspect.
**/
void
gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_set_adjustments (tree_view,
tree_view->priv->hadjustment,
adjustment);
}
/**
* gtk_tree_view_set_adjustments:
* @tree_view: A #GtkTreeView
* @hadj: The horizontal #GtkAdjustment to set, or NULL
* @vadj: The vertical #GtkAdjustment to set, or NULL
*
* Sets the horizonal and or vertical #GtkAdjustment.
**/
static void
gtk_tree_view_set_adjustments (GtkTreeView *tree_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
gboolean need_adjust = FALSE;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (hadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
else
hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (vadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
else
vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
{
gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->hadjustment), tree_view);
gtk_object_unref (GTK_OBJECT (tree_view->priv->hadjustment));
}
if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
{
gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->vadjustment), tree_view);
gtk_object_unref (GTK_OBJECT (tree_view->priv->vadjustment));
}
if (tree_view->priv->hadjustment != hadj)
{
tree_view->priv->hadjustment = hadj;
gtk_object_ref (GTK_OBJECT (tree_view->priv->hadjustment));
gtk_object_sink (GTK_OBJECT (tree_view->priv->hadjustment));
gtk_signal_connect (GTK_OBJECT (tree_view->priv->hadjustment), "value_changed",
(GtkSignalFunc) gtk_tree_view_adjustment_changed,
tree_view);
need_adjust = TRUE;
}
if (tree_view->priv->vadjustment != vadj)
{
tree_view->priv->vadjustment = vadj;
gtk_object_ref (GTK_OBJECT (tree_view->priv->vadjustment));
gtk_object_sink (GTK_OBJECT (tree_view->priv->vadjustment));
gtk_signal_connect (GTK_OBJECT (tree_view->priv->vadjustment), "value_changed",
(GtkSignalFunc) gtk_tree_view_adjustment_changed,
tree_view);
need_adjust = TRUE;
}
if (need_adjust)
gtk_tree_view_adjustment_changed (NULL, tree_view);
}
/* Column and header operations */
/**
* gtk_tree_view_get_headers_visible:
* @tree_view: A #GtkTreeView.
*
* Returns TRUE if the headers on the @tree_view are visible.
*
* Return value: Whether the headers are visible or not.
**/
gboolean
gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
}
/**
* gtk_tree_view_set_headers_visible:
* @tree_view: A #GtkTreeView.
* @headers_visible: TRUE if the headers are visible
*
* Sets the the visibility state of the headers.
**/
void
gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
gboolean headers_visible)
{
gint x, y;
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
headers_visible = !! headers_visible;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
return;
if (headers_visible)
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
else
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
if (GTK_WIDGET_REALIZED (tree_view))
{
gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
if (headers_visible)
{
gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view));
if (GTK_WIDGET_MAPPED (tree_view))
gtk_tree_view_map_buttons (tree_view);
}
else
{
gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
gtk_widget_unmap (column->button);
}
gdk_window_hide (tree_view->priv->header_window);
}
}
tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
tree_view->priv->vadjustment->lower = 0;
tree_view->priv->vadjustment->upper = tree_view->priv->height;
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_columns_autosize:
* @tree_view: A #GtkTreeView.
*
* Resizes all columns to their optimal width.
**/
void
gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
{
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
continue;
column->dirty = TRUE;
dirty = TRUE;
}
if (dirty)
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_set_headers_clickable:
* @tree_view: A #GtkTreeView.
* @setting: TRUE if the columns are clickable.
*
* Allow the column title buttons to be clicked.
**/
void
gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
gboolean setting)
{
GList *list;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->model != NULL);
for (list = tree_view->priv->columns; list; list = list->next)
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
}
/**
* gtk_tree_view_append_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to add.
*
* Appends @column to the list of columns.
*
* Return value: The number of columns in @tree_view after appending.
**/
gint
gtk_tree_view_append_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_val_if_fail (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
g_object_ref (G_OBJECT (column));
tree_view->priv->columns = g_list_append (tree_view->priv->columns, column);
column->tree_view = GTK_WIDGET (tree_view);
tree_view->priv->n_columns++;
/* FIXME create header for the new column! */
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_remove_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to remove.
*
* Removes @column from @tree_view.
*
* Return value: The number of columns in @tree_view after removing.
**/
gint
gtk_tree_view_remove_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_val_if_fail (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
tree_view->priv->columns = g_list_remove (tree_view->priv->columns,
column);
column->tree_view = NULL;
g_object_unref (G_OBJECT (column));
tree_view->priv->n_columns--;
/* FIXME destroy header for the column! */
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to be inserted.
* @position: The position to insert @column in.
*
* This inserts the @column into the @tree_view at @position.
*
* Return value: The number of columns in @tree_view after insertion.
**/
gint
gtk_tree_view_insert_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint position)
{
g_return_val_if_fail (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
g_object_ref (G_OBJECT (column));
tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
column, position);
column->tree_view = GTK_WIDGET (tree_view);
tree_view->priv->n_columns++;
/* FIXME create header for the column! */
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_get_column:
* @tree_view: A #GtkTreeView.
* @n: The position of the column, counting from 0.
*
* Gets the #GtkTreeViewColumn at the given position in the #tree_view.
*
* Return value: The #GtkTreeViewColumn, or NULL if the position is outside the
* range of columns.
**/
GtkTreeViewColumn *
gtk_tree_view_get_column (GtkTreeView *tree_view,
gint n)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
g_return_val_if_fail (tree_view->priv->model != NULL, NULL);
if (n < 0 || n >= tree_view->priv->n_columns)
return NULL;
if (tree_view->priv->columns == NULL)
return NULL;
return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
}
void
gtk_tree_view_set_expander_column (GtkTreeView *tree_view,
gint col)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->expander_column != col)
{
tree_view->priv->expander_column = col;
/* g_object_notify (G_OBJECT (tree_view), "expander_column"); */
}
}
gint
gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
return tree_view->priv->expander_column;
}
/**
* gtk_tree_view_scroll_to_point:
* @tree_view: a #GtkTreeView
* @tree_x: X coordinate of new top-left pixel of visible area
* @tree_y: Y coordinate of new top-left pixel of visible area
*
* Scrolls the tree view such that the top-left corner of the visible
* area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
* in tree window coordinates. The @tree_view must be realized before
* this function is called. If it isn't, you probably want ot be
* using gtk_tree_view_scroll_to_cell.
**/
void
gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
gint tree_x,
gint tree_y)
{
GtkAdjustment *hadj;
GtkAdjustment *vadj;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
hadj = tree_view->priv->hadjustment;
vadj = tree_view->priv->vadjustment;
gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper));
gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper));
}
/**
* gtk_tree_view_scroll_to_cell
* @tree_view: A #GtkTreeView.
* @path: The path of the row to move to.
* @column: The #GtkTreeViewColumn to move horizontally to.
* @row_align: The vertical alignment of the row specified by @path.
* @col_align: The horizontal alignment of the column specified by @column.
*
* Moves the alignments of @tree_view to the position specified by
* @column and @path. If @column is NULL, then no horizontal
* scrolling occurs. Likewise, if @path is NULL no vertical scrolling
* occurs. @row_align determines where the row is placed, and
* @col_align determines where @column is placed. Both are expected
* to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
* right/bottom alignment, 0.5 means center.
**/
void
gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
gfloat row_align,
gfloat col_align)
{
GdkRectangle cell_rect;
GdkRectangle vis_rect;
gint dest_x, dest_y;
/* FIXME work on unmapped/unrealized trees? maybe implement when
* we do incremental reflow for trees
*/
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (row_align >= 0.0);
g_return_if_fail (row_align <= 1.0);
g_return_if_fail (col_align >= 0.0);
g_return_if_fail (col_align <= 1.0);
g_return_if_fail (path != NULL || column != NULL);
row_align = CLAMP (row_align, 0.0, 1.0);
col_align = CLAMP (col_align, 0.0, 1.0);
if (! GTK_WIDGET_REALIZED (tree_view))
{
if (path)
tree_view->priv->scroll_to_path = gtk_tree_path_copy (path);
if (column)
tree_view->priv->scroll_to_column = column;
tree_view->priv->scroll_to_row_align = row_align;
tree_view->priv->scroll_to_col_align = col_align;
return;
}
gtk_tree_view_get_cell_area (tree_view, path, column, &cell_rect);
gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
dest_x = vis_rect.x;
dest_y = vis_rect.y;
if (path)
{
dest_x = cell_rect.x +
cell_rect.width * row_align -
vis_rect.width * row_align;
}
if (column)
{
dest_y = cell_rect.y +
cell_rect.height * col_align -
vis_rect.height * col_align;
}
gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
}
/**
* gtk_tree_view_get_path_at_pos:
* @tree_view: A #GtkTreeView.
* @window: The #GdkWindow to check against.
* @x: The x position to be identified.
* @y: The y position to be identified.
* @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
* @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
* @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
* @cell_y: A pointer where the Y coordinate relative to the cell can be placed, or %NULL
*
* Finds the path at the point (@x, @y) relative to @window. If
* @window is NULL, then the point is found relative to the widget
* coordinates. This function is expected to be called after an
* event, with event->window being passed in as @window. It is
* primarily for things like popup menus. If @path is non-NULL, then
* it will be filled with the #GtkTreePath at that point. This path
* should be freed with #gtk_tree_path_free. If @column is non-NULL,
* then it will be filled with the column at that point. @cell_x and
* @cell_y return the coordinates relative to the cell background
* (i.e. the background_area passed to gtk_cell_renderer_render()).
*
* Return value: TRUE if a row exists at that coordinate.
**/
gboolean
gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view,
GdkWindow *window,
gint x,
gint y,
GtkTreePath **path,
GtkTreeViewColumn **column,
gint *cell_x,
gint *cell_y)
{
GtkRBTree *tree;
GtkRBNode *node;
gint y_offset;
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
if (window)
g_return_val_if_fail (window == tree_view->priv->bin_window, FALSE);
if (path)
*path = NULL;
if (column)
*column = NULL;
if (x > tree_view->priv->hadjustment->upper)
return FALSE;
if (x < 0 || y < 0)
return FALSE;
if (column || cell_x)
{
GtkTreeViewColumn *tmp_column;
GtkTreeViewColumn *last_column = NULL;
GList *list;
gint remaining_x = x;
gboolean found = FALSE;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (tmp_column->visible == FALSE)
continue;
last_column = tmp_column;
if (remaining_x <= tmp_column->width)
{
found = TRUE;
if (column)
*column = tmp_column;
if (cell_x)
*cell_x = remaining_x;
break;
}
remaining_x -= tmp_column->width;
}
if (!found)
{
if (column)
*column = last_column;
if (cell_x)
*cell_x = last_column->width + remaining_x;
}
}
if (window)
{
y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
&tree, &node);
}
else
{
if (y < TREE_VIEW_HEADER_HEIGHT (tree_view))
return FALSE;
y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y + tree_view->priv->vadjustment->value),
&tree, &node);
}
if (tree == NULL)
return FALSE;
if (cell_y)
*cell_y = y_offset;
if (path)
*path = _gtk_tree_view_find_path (tree_view, tree, node);
return TRUE;
}
static void
gtk_tree_view_get_background_xrange (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeViewColumn *column,
gint *x1,
gint *x2)
{
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
GList *list;
if (x1)
*x1 = 0;
if (x2)
*x2 = 0;
total_width = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (tmp_column == column)
break;
if (tmp_column->visible)
total_width += tmp_column->width;
}
if (tmp_column != column)
{
g_warning (G_STRLOC": passed-in column isn't in the tree");
return;
}
if (x1)
*x1 = total_width;
if (x2)
{
if (column->visible)
*x2 = total_width + column->width;
else
*x2 = total_width; /* width of 0 */
}
}
static void
gtk_tree_view_get_cell_xrange (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeViewColumn *column,
gint *x1,
gint *x2)
{
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
GList *list;
gint i;
if (x1)
*x1 = 0;
if (x2)
*x2 = 0;
i = 0;
total_width = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (tmp_column == column)
break;
if (tmp_column->visible)
total_width += tmp_column->width;
++i;
}
if (tmp_column != column)
{
g_warning (G_STRLOC": passed-in column isn't in the tree");
return;
}
/* Remember we're getting the cell range, i.e. the cell_area passed
* to the cell renderer.
*/
if (i == tree_view->priv->expander_column)
total_width += tree_view->priv->tab_offset * _gtk_rbtree_get_depth (tree);
if (x1)
*x1 = total_width;
if (x2)
{
if (column->visible)
*x2 = total_width + column->width;
else
*x2 = total_width; /* width of 0 */
}
}
static void
gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
gint *x1,
gint *x2)
{
gint x_offset = 0;
GList *list;
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
gint i;
i = 0;
total_width = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (i == tree_view->priv->expander_column)
{
x_offset = total_width;
break;
}
if (tmp_column->visible)
total_width += tmp_column->width;
++i;
}
if (x1)
*x1 = x_offset;
if (tmp_column && tmp_column->visible)
{
/* +1 because x2 isn't included in the range. */
if (x2)
*x2 = x_offset + tree_view->priv->tab_offset + 1;
}
else
{
/* return an empty range, the expander column is hidden */
if (x2)
*x2 = x_offset;
}
}
/**
* gtk_tree_view_get_cell_area:
* @tree_view: a #GtkTreeView
* @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
* @rect: rectangle to fill with cell rect
*
* Fills the bounding rectangle in tree window coordinates for the
* cell at the row specified by @path and the column specified by
* @column. If @path is %NULL, the y and height fields of the
* rectangle will be filled with 0. If @column is %NULL, the x and
* width fields will be filled with 0. The sum of all cell rects does
* not cover the entire tree; there are extra pixels in between rows,
* for example. The returned rectangle is equivalent to the @cell_area
* passed to gtk_cell_renderer_render().
*
**/
void
gtk_tree_view_get_cell_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (path)
{
/* Get vertical coords */
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree == NULL)
{
g_warning (G_STRLOC": no row corresponding to path");
return;
}
/* Remember that the rbtree stores node height including the vertical
* separator, see comment at top of file.
*/
rect->y = CELL_FIRST_PIXEL (tree_view, tree, node);
rect->height = CELL_HEIGHT (node);
}
if (column)
{
gint x2 = 0;
gtk_tree_view_get_cell_xrange (tree_view, tree, column, &rect->x, &x2);
rect->width = x2 - rect->x;
}
}
/**
* gtk_tree_view_get_background_area:
* @tree_view: a #GtkTreeView
* @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
* @rect: rectangle to fill with cell background rect
*
* Fills the bounding rectangle in tree window coordinates for the
* cell at the row specified by @path and the column specified by
* @column. If @path is %NULL, the y and height fields of the
* rectangle will be filled with 0. If @column is %NULL, the x and
* width fields will be filled with 0. The returned rectangle is
* equivalent to the @background_area passed to
* gtk_cell_renderer_render(). These background areas tile to cover
* the entire tree window (except for the area used for header
* buttons). Contrast with the cell_area, returned by
* gtk_tree_view_get_cell_area(), which returns only the cell itself,
* excluding surrounding borders and the tree expander area.
*
**/
void
gtk_tree_view_get_background_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (path)
{
/* Get vertical coords */
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree == NULL)
{
g_warning (G_STRLOC": no row corresponding to path");
return;
}
rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
rect->height = BACKGROUND_HEIGHT (node);
}
if (column)
{
gint x2 = 0;
gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
rect->width = x2 - rect->x;
}
}
static void
gtk_tree_view_expand_all_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
GtkTreeView *tree_view = data;
if (node->children)
_gtk_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_helper,
data);
else if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT && node->children == NULL)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeIter child;
node->children = _gtk_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
TRUE,
GTK_WIDGET_REALIZED (tree_view));
gtk_tree_path_free (path);
}
}
/**
* gtk_tree_view_expand_all:
* @tree_view: A #GtkTreeView.
*
* Recursively expands all nodes in the @tree_view.
**/
void
gtk_tree_view_expand_all (GtkTreeView *tree_view)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->tree != NULL);
_gtk_rbtree_traverse (tree_view->priv->tree,
tree_view->priv->tree->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_helper,
tree_view);
_gtk_tree_view_set_size (tree_view, -1,-1);
}
static void
gtk_tree_view_collapse_all_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
if (node->children)
{
GtkTreePath *path;
GtkTreeIter iter;
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (data),
node->children,
node->children->root);
gtk_tree_model_get_iter (GTK_TREE_VIEW (data)->priv->model,
&iter,
path);
gtk_tree_view_discover_dirty (GTK_TREE_VIEW (data),
node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (node->children);
gtk_tree_path_free (path);
}
}
/**
* gtk_tree_view_collapse_all:
* @tree_view: A #GtkTreeView.
*
* Recursively collapses all visible, expanded nodes in @tree_view.
**/
void
gtk_tree_view_collapse_all (GtkTreeView *tree_view)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->tree != NULL);
_gtk_rbtree_traverse (tree_view->priv->tree,
tree_view->priv->tree->root,
G_PRE_ORDER,
gtk_tree_view_collapse_all_helper,
tree_view);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/* FIXME the bool return values for expand_row and collapse_row are
* not analagous; they should be TRUE if the row had children and
* was not already in the requested state.
*/
/**
* gtk_tree_view_expand_row:
* @tree_view: a #GtkTreeView
* @path: path to a row
* @open_all: whether to recursively expand, or just expand immediate children
*
* Opens the row so its children are visible
*
* Return value: %TRUE if the row existed and had children
**/
gboolean
gtk_tree_view_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
gboolean open_all)
{
GtkTreeIter iter;
GtkTreeIter child;
GtkRBTree *tree;
GtkRBNode *node;
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (node->children)
return TRUE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
return FALSE;
node->children = _gtk_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
open_all,
GTK_WIDGET_REALIZED (tree_view));
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/**
* gtk_tree_view_collapse_row:
* @tree_view: a #GtkTreeView
* @path: path to a row in the @tree_view
*
* Collapses a row (hides its child rows).
*
* Return value: %TRUE if the row was expanded
**/
gboolean
gtk_tree_view_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
GtkTreeIter iter;
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (node->children == NULL)
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_view_discover_dirty (tree_view,
node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (node->children);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/**
* gtk_tree_view_get_visible_rect:
* @tree_view: a #GtkTreeView
* @visible_rect: rectangle to fill
*
* Fills @visible_rect with the currently-visible region of the
* buffer, in tree coordinates. Convert to widget coordinates with
* gtk_tree_view_tree_to_widget_coords(). Tree coordinates start at
* 0,0 for row 0 of the tree, and cover the entire scrollable area of
* the tree.
**/
void
gtk_tree_view_get_visible_rect (GtkTreeView *tree_view,
GdkRectangle *visible_rect)
{
GtkWidget *widget;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
widget = GTK_WIDGET (tree_view);
if (visible_rect)
{
visible_rect->x = tree_view->priv->hadjustment->value;
visible_rect->y = tree_view->priv->vadjustment->value;
visible_rect->width = widget->allocation.width;
visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
}
}
/**
* gtk_tree_view_widget_to_tree_coords:
* @tree_view: a #GtkTreeView
* @wx: widget X coordinate
* @wy: widget Y coordinate
* @tx: return location for tree X coordinate
* @ty: return location for tree Y coordinate
*
* Converts widget coordinates to coordinates for the
* tree window (the full scrollable area of the tree).
*
**/
void
gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *tx,
gint *ty)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tx)
{
*tx = wx + tree_view->priv->hadjustment->value;
}
if (ty)
{
*ty = wy + tree_view->priv->vadjustment->value;
}
}
/**
* gtk_tree_view_tree_to_widget_coords:
* @tree_view: a #GtkTreeView
* @tx: tree X coordinate
* @ty: tree Y coordinate
* @wx: return location for widget X coordinate
* @wy: return location for widget Y coordinate
*
* Converts tree coordinates (coordinates in full scrollable
* area of the tree) to widget coordinates.
*
**/
void
gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *wx,
gint *wy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (wx)
{
*wx = tx - tree_view->priv->hadjustment->value;
}
if (wy)
{
*wy = ty - tree_view->priv->vadjustment->value;
}
}
/* Drag-and-drop */
void
set_source_row (GdkDragContext *context,
GtkTreePath *source_row)
{
g_object_set_data_full (G_OBJECT (context),
"gtk-tree-view-source-row",
source_row ? gtk_tree_path_copy (source_row) : NULL,
(GDestroyNotify) (source_row ? gtk_tree_path_free : NULL));
}
GtkTreePath*
get_source_row (GdkDragContext *context)
{
return g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
}
void
set_dest_row (GdkDragContext *context,
GtkTreePath *dest_row)
{
g_object_set_data_full (G_OBJECT (context),
"gtk-tree-view-dest-row",
dest_row ? gtk_tree_path_copy (dest_row) : NULL,
(GDestroyNotify) (dest_row ? gtk_tree_path_free : NULL));
}
GtkTreePath*
get_dest_row (GdkDragContext *context)
{
return g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
}
typedef struct _TreeViewDragInfo TreeViewDragInfo;
struct _TreeViewDragInfo
{
GdkModifierType start_button_mask;
GtkTargetList *source_target_list;
GdkDragAction source_actions;
GClosure *row_draggable_closure;
GtkTargetList *dest_target_list;
GClosure *location_droppable_closure;
guint source_set : 1;
guint dest_set : 1;
};
static TreeViewDragInfo*
get_info (GtkTreeView *tree_view)
{
return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
}
static void
clear_source_info (TreeViewDragInfo *di)
{
if (di->source_target_list)
gtk_target_list_unref (di->source_target_list);
if (di->row_draggable_closure)
g_closure_unref (di->row_draggable_closure);
di->source_target_list = NULL;
di->row_draggable_closure = NULL;
}
static void
clear_dest_info (TreeViewDragInfo *di)
{
if (di->location_droppable_closure)
g_closure_unref (di->location_droppable_closure);
if (di->dest_target_list)
gtk_target_list_unref (di->dest_target_list);
di->location_droppable_closure = NULL;
di->dest_target_list = NULL;
}
static void
destroy_info (TreeViewDragInfo *di)
{
clear_source_info (di);
clear_dest_info (di);
g_free (di);
}
static TreeViewDragInfo*
ensure_info (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
di = get_info (tree_view);
if (di == NULL)
{
di = g_new0 (TreeViewDragInfo, 1);
g_object_set_data_full (G_OBJECT (tree_view),
"gtk-tree-view-drag-info",
di,
(GDestroyNotify) destroy_info);
}
return di;
}
static void
remove_info (GtkTreeView *tree_view)
{
g_object_set_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info", NULL);
}
#define SCROLL_EDGE_SIZE 15
static gint
drag_scan_timeout (gpointer data)
{
GtkTreeView *tree_view;
gint x, y;
GdkModifierType state;
GtkTreePath *path = NULL;
GtkTreeViewColumn *column = NULL;
GdkRectangle visible_rect;
tree_view = GTK_TREE_VIEW (data);
gdk_window_get_pointer (tree_view->priv->bin_window,
&x, &y, &state);
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
/* See if we are near the edge. */
if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
(visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
(y - visible_rect.y) < SCROLL_EDGE_SIZE ||
(visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
{
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
x, y,
&path,
&column,
NULL,
NULL);
if (path != NULL)
{
gtk_tree_view_scroll_to_cell (tree_view,
path,
column,
0.5, 0.5);
gtk_tree_path_free (path);
}
}
return TRUE;
}
static void
ensure_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout == 0)
tree_view->priv->scroll_timeout = gtk_timeout_add (50, drag_scan_timeout, tree_view);
}
static void
remove_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
}
#ifdef __GNUC__
#warning "implement g_closure_sink"
#endif
#define g_closure_sink(c)
void
gtk_tree_view_set_rows_drag_source (GtkTreeView *tree_view,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions,
GtkTreeViewDraggableFunc row_draggable_func,
gpointer user_data)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = ensure_info (tree_view);
clear_source_info (di);
di->start_button_mask = start_button_mask;
di->source_target_list = gtk_target_list_new (targets, n_targets);
di->source_actions = actions;
if (row_draggable_func)
{
di->row_draggable_closure = g_cclosure_new ((GCallback) row_draggable_func,
user_data, NULL);
g_closure_ref (di->row_draggable_closure);
g_closure_sink (di->row_draggable_closure);
}
di->source_set = TRUE;
}
void
gtk_tree_view_set_rows_drag_dest (GtkTreeView *tree_view,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions,
GtkTreeViewDroppableFunc location_droppable_func,
gpointer user_data)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_dest_set (GTK_WIDGET (tree_view),
0,
NULL,
0,
actions);
di = ensure_info (tree_view);
clear_dest_info (di);
if (targets)
di->dest_target_list = gtk_target_list_new (targets, n_targets);
if (location_droppable_func)
{
di->location_droppable_closure = g_cclosure_new ((GCallback) location_droppable_func,
user_data, NULL);
g_closure_ref (di->location_droppable_closure);
g_closure_sink (di->location_droppable_closure);
}
di->dest_set = TRUE;
}
void
gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->source_set)
{
clear_source_info (di);
di->source_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
}
void
gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->dest_set)
{
gtk_drag_dest_unset (GTK_WIDGET (tree_view));
clear_dest_info (di);
di->dest_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
}
void
gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewDropPosition pos)
{
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_print ("drag dest row %p -> %p\n", tree_view->priv->drag_dest_row, path);
if (tree_view->priv->drag_dest_row)
{
gtk_tree_view_queue_draw_path (tree_view, tree_view->priv->drag_dest_row, NULL);
gtk_tree_path_free (tree_view->priv->drag_dest_row);
}
tree_view->priv->drag_dest_pos = pos;
if (path)
{
tree_view->priv->drag_dest_row = gtk_tree_path_copy (path);
gtk_tree_view_queue_draw_path (tree_view, tree_view->priv->drag_dest_row, NULL);
}
else
tree_view->priv->drag_dest_row = NULL;
}
void
gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (path)
{
if (tree_view->priv->drag_dest_row)
*path = gtk_tree_path_copy (tree_view->priv->drag_dest_row);
else
*path = NULL;
}
if (pos)
*pos = tree_view->priv->drag_dest_pos;
}
gboolean
gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view,
gint drag_x,
gint drag_y,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
gint cell_y;
gdouble offset_into_row;
gdouble quarter;
gint x, y;
GdkRectangle cell;
GtkTreeViewColumn *column = NULL;
GtkTreePath *tmp_path = NULL;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (drag_x >= 0, FALSE);
g_return_val_if_fail (drag_y >= 0, FALSE);
g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
if (path)
*path = NULL;
/* remember that drag_x and drag_y are in widget coords, convert to tree window */
gtk_tree_view_widget_to_tree_coords (tree_view, drag_x, drag_y,
&x, &y);
/* If in the top quarter of a row, we drop before that row; if
* in the bottom quarter, drop after that row; if in the middle,
* and the row has children, drop into the row.
*/
if (!gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
x, y,
&tmp_path,
&column,
NULL,
&cell_y))
return FALSE;
gtk_tree_view_get_background_area (tree_view, tmp_path, column,
&cell);
offset_into_row = cell_y;
if (path)
*path = tmp_path;
else
gtk_tree_path_free (tmp_path);
tmp_path = NULL;
quarter = cell.height / 4.0;
if (pos)
{
if (offset_into_row < quarter)
{
*pos = GTK_TREE_VIEW_DROP_BEFORE;
}
else if (offset_into_row < quarter * 2)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
}
else if (offset_into_row < quarter * 3)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
}
else
{
*pos = GTK_TREE_VIEW_DROP_AFTER;
}
}
return TRUE;
}
static gboolean
gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event)
{
GdkDragContext *context;
TreeViewDragInfo *di;
GtkTreePath *path = NULL;
gint button;
gint cell_x, cell_y;
di = get_info (tree_view);
if (di == NULL)
return FALSE;
if (tree_view->priv->pressed_button < 0)
return FALSE;
if (!gtk_drag_check_threshold (GTK_WIDGET (tree_view),
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
event->x, event->y))
return FALSE;
button = tree_view->priv->pressed_button;
tree_view->priv->pressed_button = -1;
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
&path,
NULL,
&cell_x,
&cell_y);
if (path == NULL)
return FALSE;
/* FIXME if the path doesn't match the row_draggable predicate,
* return FALSE and free path
*/
/* FIXME Check whether we're a start button, if not return FALSE and
* free path
*/
context = gtk_drag_begin (GTK_WIDGET (tree_view),
di->source_target_list,
di->source_actions,
button,
(GdkEvent*)event);
gtk_drag_set_icon_default (context);
{
GdkPixmap *row_pix;
row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
path);
gtk_drag_set_icon_pixmap (context,
gdk_drawable_get_colormap (row_pix),
row_pix,
NULL,
/* the + 1 is for the black border in the icon */
tree_view->priv->press_start_x + 1,
cell_y + 1);
gdk_pixmap_unref (row_pix);
}
set_source_row (context, path);
gtk_tree_path_free (path);
return TRUE;
}
/* Default signal implementations for the drag signals */
static void
gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
static void
gtk_tree_view_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
static void
gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkTreeView *tree_view;
GtkTreeModel *model;
TreeViewDragInfo *di;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (model == NULL)
return;
di = get_info (GTK_TREE_VIEW (widget));
if (di == NULL)
return;
source_row = get_source_row (context);
if (source_row == NULL)
return;
/* We can implement the GTK_TREE_MODEL_ROW target generically for
* any model; for DragSource models there are some other targets
* we also support.
*/
if (GTK_IS_TREE_DRAG_SOURCE (model) &&
gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
source_row,
selection_data))
return;
/* If drag_data_get does nothing, try providing row data. */
if (selection_data->target == gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE))
{
gtk_selection_data_set_tree_row (selection_data,
model,
source_row);
}
}
static gboolean
check_model_dnd (GtkTreeModel *model,
GType required_iface,
const gchar *signal)
{
if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
{
g_warning ("You must override the default '%s' handler "
"on GtkTreeView when using models that don't support "
"the %s interface. The simplest way to do this "
"is to connect to '%s' and call "
"gtk_signal_emit_stop_by_name() in your signal handler to prevent "
"the default handler from running. Look at the source code "
"for the default handler in gtktreeview.c to get an idea what "
"your handler should do. (gtktreeview.c is in the GTK source "
"code.)",
signal, g_type_name (required_iface), signal);
return FALSE;
}
else
return TRUE;
}
static void
gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context)
{
TreeViewDragInfo *di;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
return;
di = get_info (tree_view);
if (di == NULL)
return;
source_row = get_source_row (context);
gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
source_row);
set_source_row (context, NULL);
}
static void
remove_open_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->open_dest_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
}
static void
gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
TreeViewDragInfo *di;
di = get_info (GTK_TREE_VIEW (widget));
/* unset any highlight row */
g_print ("drag leave\n");
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
}
static gint
open_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
if (tree_view->priv->drag_dest_row &&
(tree_view->priv->drag_dest_pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
tree_view->priv->drag_dest_pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
gtk_tree_view_expand_row (tree_view,
tree_view->priv->drag_dest_row,
FALSE);
tree_view->priv->open_dest_timeout = 0;
return FALSE;
}
else
return TRUE;
}
/* Returns TRUE if event should not be propagated to parent widgets */
static gboolean
set_destination_row (GtkTreeView *tree_view,
GdkDragContext *context,
gint x,
gint y,
GdkDragAction *suggested_action)
{
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
TreeViewDragInfo *di;
GtkWidget *widget;
*suggested_action = 0;
widget = GTK_WIDGET (tree_view);
di = get_info (tree_view);
if (di == NULL)
{
/* someone unset us as a drag dest, note that if
* we return FALSE drag_leave isn't called
*/
g_print ("no longer a drag dest\n");
gtk_tree_view_set_drag_dest_row (tree_view,
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
return FALSE; /* no longer a drop site */
}
/* We don't take this target */
if (gtk_drag_dest_find_target (widget, context, di->dest_target_list) == GDK_NONE)
{
g_print ("bad target, not accepting\n");
return FALSE;
}
if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
x, y,
&path,
&pos))
{
/* can't drop here */
remove_open_timeout (tree_view);
g_print ("no drag row here\n");
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
/* don't propagate to parent though */
return TRUE;
}
g_assert (path);
/* If we left the current row's "open" zone, unset the timeout for
* opening the row
*/
if (tree_view->priv->drag_dest_row &&
(gtk_tree_path_compare (path, tree_view->priv->drag_dest_row) != 0 ||
!(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
remove_open_timeout (tree_view);
if (TRUE /* FIXME if the location droppable predicate */)
{
GtkWidget *source_widget;
*suggested_action = context->suggested_action;
source_widget = gtk_drag_get_source_widget (context);
if (source_widget == widget)
{
/* Default to MOVE, unless the user has
* pressed ctrl or alt to affect available actions
*/
if ((context->actions & GDK_ACTION_MOVE) != 0)
*suggested_action = GDK_ACTION_MOVE;
}
g_print ("setting drag dest row\n");
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
path, pos);
}
else
{
/* can't drop here */
remove_open_timeout (tree_view);
g_print ("droppable predicate false\n");
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
}
return TRUE;
}
static gboolean
gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeView *tree_view;
GdkDragAction suggested_action = 0;
tree_view = GTK_TREE_VIEW (widget);
g_print ("motion\n");
if (!set_destination_row (tree_view, context, x, y, &suggested_action))
return FALSE;
ensure_scroll_timeout (tree_view);
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
if (path == NULL)
{
/* Can't drop here. */
g_print ("not over a dest row\n");
gdk_drag_status (context, 0, time);
}
else
{
if (tree_view->priv->open_dest_timeout == 0 &&
(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
tree_view->priv->open_dest_timeout =
gtk_timeout_add (250, open_row_timeout, tree_view);
}
g_print ("status\n");
gdk_drag_status (context, suggested_action, time);
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static gboolean
gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeView *tree_view;
GdkDragAction suggested_action = 0;
GdkAtom target = GDK_NONE;
TreeViewDragInfo *di;
GtkTreeModel *model;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
g_print ("drop\n");
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
di = get_info (tree_view);
if (di == NULL)
return FALSE;
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
return FALSE;
if (!set_destination_row (tree_view, context, x, y, &suggested_action))
return FALSE;
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
if (path != NULL && di->dest_target_list)
{
target = gtk_drag_dest_find_target (widget, context, di->dest_target_list);
if (target != GDK_NONE)
{
g_print ("have target\n");
set_dest_row (context, path);
}
}
if (path)
gtk_tree_path_free (path);
/* Unset this thing */
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
if (target != GDK_NONE)
{
g_print ("getting data\n");
gtk_drag_get_data (widget, context, target, time);
return TRUE;
}
else
return FALSE;
}
static void
gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
TreeViewDragInfo *di;
gboolean accepted = FALSE;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *dest_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
return;
g_print ("drag data received\n");
di = get_info (tree_view);
if (di == NULL)
return;
dest_row = get_dest_row (context);
if (dest_row == NULL)
return;
if (selection_data->length >= 0)
{
if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
dest_row,
selection_data))
accepted = TRUE;
/* Don't clear drop_row, we may need it in drag_data_delete */
}
gtk_drag_finish (context,
accepted,
(context->action == GDK_ACTION_MOVE),
time);
g_print ("accepted: %d\n", accepted);
}
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