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ef4356b567
gtk3/gtk/gtkliststore.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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/* gtkliststore.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 <string.h>
#include "gtktreemodel.h"
#include "gtkliststore.h"
#include "gtktreedatalist.h"
#include "gtksignal.h"
#include "gtktreednd.h"
#include <gobject/gvaluecollector.h>
#define G_SLIST(x) ((GSList *) x)
enum {
CHANGED,
INSERTED,
CHILD_TOGGLED,
DELETED,
LAST_SIGNAL
};
static guint list_store_signals[LAST_SIGNAL] = { 0 };
static void gtk_list_store_init (GtkListStore *list_store);
static void gtk_list_store_class_init (GtkListStoreClass *class);
static void gtk_list_store_tree_model_init (GtkTreeModelIface *iface);
static void gtk_list_store_drag_source_init(GtkTreeDragSourceIface *iface);
static void gtk_list_store_drag_dest_init (GtkTreeDragDestIface *iface);
static guint gtk_list_store_get_flags (GtkTreeModel *tree_model);
static gint gtk_list_store_get_n_columns (GtkTreeModel *tree_model);
static GType gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index);
static gboolean gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
static GtkTreePath *gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
static gboolean gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
static gboolean gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gint gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
static gboolean gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
static gboolean gtk_list_store_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path);
static gboolean gtk_list_store_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection_data);
static gboolean gtk_list_store_drag_data_received (GtkTreeDragDest *drag_dest,
GtkTreePath *dest,
GtkSelectionData *selection_data);
GtkType
gtk_list_store_get_type (void)
{
static GtkType list_store_type = 0;
if (!list_store_type)
{
static const GTypeInfo list_store_info =
{
sizeof (GtkListStoreClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_list_store_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkListStore),
0,
(GInstanceInitFunc) gtk_list_store_init,
};
static const GInterfaceInfo tree_model_info =
{
(GInterfaceInitFunc) gtk_list_store_tree_model_init,
NULL,
NULL
};
static const GInterfaceInfo drag_source_info =
{
(GInterfaceInitFunc) gtk_list_store_drag_source_init,
NULL,
NULL
};
static const GInterfaceInfo drag_dest_info =
{
(GInterfaceInitFunc) gtk_list_store_drag_dest_init,
NULL,
NULL
};
list_store_type = g_type_register_static (GTK_TYPE_OBJECT, "GtkListStore", &list_store_info, 0);
g_type_add_interface_static (list_store_type,
GTK_TYPE_TREE_MODEL,
&tree_model_info);
g_type_add_interface_static (list_store_type,
GTK_TYPE_TREE_DRAG_SOURCE,
&drag_source_info);
g_type_add_interface_static (list_store_type,
GTK_TYPE_TREE_DRAG_DEST,
&drag_dest_info);
}
return list_store_type;
}
static void
gtk_list_store_class_init (GtkListStoreClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) class;
list_store_signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, changed),
gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
list_store_signals[INSERTED] =
gtk_signal_new ("inserted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, inserted),
gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
list_store_signals[CHILD_TOGGLED] =
gtk_signal_new ("child_toggled",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, child_toggled),
gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
list_store_signals[DELETED] =
gtk_signal_new ("deleted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, deleted),
gtk_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
GTK_TYPE_TREE_PATH);
}
static void
gtk_list_store_tree_model_init (GtkTreeModelIface *iface)
{
iface->get_flags = gtk_list_store_get_flags;
iface->get_n_columns = gtk_list_store_get_n_columns;
iface->get_column_type = gtk_list_store_get_column_type;
iface->get_iter = gtk_list_store_get_iter;
iface->get_path = gtk_list_store_get_path;
iface->get_value = gtk_list_store_get_value;
iface->iter_next = gtk_list_store_iter_next;
iface->iter_children = gtk_list_store_iter_children;
iface->iter_has_child = gtk_list_store_iter_has_child;
iface->iter_n_children = gtk_list_store_iter_n_children;
iface->iter_nth_child = gtk_list_store_iter_nth_child;
iface->iter_parent = gtk_list_store_iter_parent;
}
static void
gtk_list_store_drag_source_init (GtkTreeDragSourceIface *iface)
{
iface->drag_data_delete = gtk_list_store_drag_data_delete;
iface->drag_data_get = gtk_list_store_drag_data_get;
}
static void
gtk_list_store_drag_dest_init (GtkTreeDragDestIface *iface)
{
iface->drag_data_received = gtk_list_store_drag_data_received;
}
static void
gtk_list_store_init (GtkListStore *list_store)
{
list_store->root = NULL;
list_store->tail = NULL;
list_store->stamp = g_random_int ();
}
GtkListStore *
gtk_list_store_new (void)
{
return GTK_LIST_STORE (gtk_type_new (gtk_list_store_get_type ()));
}
GtkListStore *
gtk_list_store_new_with_types (gint n_columns,
...)
{
GtkListStore *retval;
va_list args;
gint i;
g_return_val_if_fail (n_columns > 0, NULL);
retval = gtk_list_store_new ();
gtk_list_store_set_n_columns (retval, n_columns);
va_start (args, n_columns);
for (i = 0; i < n_columns; i++)
gtk_list_store_set_column_type (retval, i, va_arg (args, GType));
va_end (args);
return retval;
}
void
gtk_list_store_set_n_columns (GtkListStore *list_store,
gint n_columns)
{
GType *new_columns;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (n_columns > 0);
if (list_store->n_columns == n_columns)
return;
new_columns = g_new0 (GType, n_columns);
if (list_store->column_headers)
{
/* copy the old header orders over */
if (n_columns >= list_store->n_columns)
memcpy (new_columns, list_store->column_headers, list_store->n_columns * sizeof (gchar *));
else
memcpy (new_columns, list_store->column_headers, n_columns * sizeof (GType));
g_free (list_store->column_headers);
}
list_store->column_headers = new_columns;
list_store->n_columns = n_columns;
}
void
gtk_list_store_set_column_type (GtkListStore *list_store,
gint column,
GType type)
{
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (column >=0 && column < list_store->n_columns);
list_store->column_headers[column] = type;
}
/* Fulfill the GtkTreeModel requirements */
static guint
gtk_list_store_get_flags (GtkTreeModel *tree_model)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), 0);
return GTK_TREE_MODEL_ITERS_PERSIST;
}
static gint
gtk_list_store_get_n_columns (GtkTreeModel *tree_model)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), 0);
return GTK_LIST_STORE (tree_model)->n_columns;
}
static GType
gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), G_TYPE_INVALID);
g_return_val_if_fail (index < GTK_LIST_STORE (tree_model)->n_columns &&
index >= 0, G_TYPE_INVALID);
return GTK_LIST_STORE (tree_model)->column_headers[index];
}
static gboolean
gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);
iter->stamp = GTK_LIST_STORE (tree_model)->stamp;
iter->user_data = g_slist_nth (G_SLIST (GTK_LIST_STORE (tree_model)->root),
gtk_tree_path_get_indices (path)[0]);
return iter->user_data != NULL;
}
static GtkTreePath *
gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
GtkTreePath *retval;
GSList *list;
gint i = 0;
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), NULL);
g_return_val_if_fail (iter->stamp == GTK_LIST_STORE (tree_model)->stamp, NULL);
for (list = G_SLIST (GTK_LIST_STORE (tree_model)->root); list; list = list->next)
{
if (list == G_SLIST (iter->user_data))
break;
i++;
}
if (list == NULL)
return NULL;
retval = gtk_tree_path_new ();
gtk_tree_path_append_index (retval, i);
return retval;
}
static void
gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value)
{
GtkTreeDataList *list;
gint tmp_column = column;
g_return_if_fail (GTK_IS_LIST_STORE (tree_model));
g_return_if_fail (column < GTK_LIST_STORE (tree_model)->n_columns);
g_return_if_fail (GTK_LIST_STORE (tree_model)->stamp == iter->stamp);
list = G_SLIST (iter->user_data)->data;
while (tmp_column-- > 0 && list)
list = list->next;
if (list == NULL)
g_value_init (value, GTK_LIST_STORE (tree_model)->column_headers[column]);
else
_gtk_tree_data_list_node_to_value (list,
GTK_LIST_STORE (tree_model)->column_headers[column],
value);
}
static gboolean
gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
g_return_val_if_fail (GTK_LIST_STORE (tree_model)->stamp == iter->stamp, FALSE);
iter->user_data = G_SLIST (iter->user_data)->next;
return (iter->user_data != NULL);
}
static gboolean
gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent)
{
if (parent)
{
iter->stamp = 0;
iter->user_data = NULL;
return FALSE;
}
else
{
iter->stamp = GTK_LIST_STORE (tree_model)->stamp;
iter->user_data = GTK_LIST_STORE (tree_model)->root;
return TRUE;
}
}
static gboolean
gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
return FALSE;
}
static gint
gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
if (iter == NULL)
return g_slist_length (G_SLIST (GTK_LIST_STORE (tree_model)->root));
return 0;
}
static gboolean
gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
if (parent)
{
g_return_val_if_fail (iter->stamp == GTK_LIST_STORE (tree_model)->stamp, FALSE);
iter->stamp = 0;
iter->user_data = NULL;
return FALSE;
}
iter->user_data = g_slist_nth (G_SLIST (GTK_LIST_STORE (tree_model)->root), n);
if (iter->user_data)
iter->stamp = GTK_LIST_STORE (tree_model)->stamp;
else
iter->stamp = 0;
return (iter->user_data != NULL);
}
static gboolean
gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child)
{
iter->stamp = 0;
iter->user_data = NULL;
return FALSE;
}
/* Public accessors */
/* This is a somewhat inelegant function that does a lot of list
* manipulations on it's own.
*/
void
gtk_list_store_set_cell (GtkListStore *list_store,
GtkTreeIter *iter,
gint column,
GValue *value)
{
GtkTreeDataList *list;
GtkTreeDataList *prev;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
g_return_if_fail (column >= 0 && column < list_store->n_columns);
prev = list = G_SLIST (iter->user_data)->data;
while (list != NULL)
{
if (column == 0)
{
_gtk_tree_data_list_value_to_node (list, value);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"changed",
NULL, iter);
return;
}
column--;
prev = list;
list = list->next;
}
if (G_SLIST (iter->user_data)->data == NULL)
{
G_SLIST (iter->user_data)->data = list = _gtk_tree_data_list_alloc ();
list->next = NULL;
}
else
{
list = prev->next = _gtk_tree_data_list_alloc ();
list->next = NULL;
}
while (column != 0)
{
list->next = _gtk_tree_data_list_alloc ();
list = list->next;
list->next = NULL;
column --;
}
_gtk_tree_data_list_value_to_node (list, value);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"changed",
NULL, iter);
}
void
gtk_list_store_set_valist (GtkListStore *list_store,
GtkTreeIter *iter,
va_list var_args)
{
gint column;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
column = va_arg (var_args, gint);
while (column != -1)
{
GValue value = { 0, };
gchar *error = NULL;
if (column >= list_store->n_columns)
{
g_warning ("%s: Invalid column number %d added to iter (remember to end your list of columns with a -1)", G_STRLOC, column);
break;
}
g_value_init (&value, list_store->column_headers[column]);
G_VALUE_COLLECT (&value, var_args, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
/* we purposely leak the value here, it might not be
* in a sane state if an error condition occoured
*/
break;
}
gtk_list_store_set_cell (list_store,
iter,
column,
&value);
g_value_unset (&value);
column = va_arg (var_args, gint);
}
}
/**
* gtk_list_store_set:
* @list_store: a #GtkListStore
* @iter: row iterator
* @Varargs: pairs of column number and value, terminated with -1
*
* Sets the value of one or more cells in the row referenced by @iter.
* The variable argument list should contain integer column numbers,
* each column number followed by the value to be set. For example,
* The list is terminated by a -1. For example, to set column 0 with type
* %G_TYPE_STRING to "Foo", you would write gtk_list_store_set (store, iter,
* 0, "Foo", -1).
**/
void
gtk_list_store_set (GtkListStore *list_store,
GtkTreeIter *iter,
...)
{
va_list var_args;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
va_start (var_args, iter);
gtk_list_store_set_valist (list_store, iter, var_args);
va_end (var_args);
}
void
gtk_list_store_get_valist (GtkListStore *list_store,
GtkTreeIter *iter,
va_list var_args)
{
gint column;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
column = va_arg (var_args, gint);
while (column != -1)
{
GValue value = { 0, };
gchar *error = NULL;
if (column >= list_store->n_columns)
{
g_warning ("%s: Invalid column number %d accessed (remember to end your list of columns with a -1)", G_STRLOC, column);
break;
}
gtk_list_store_get_value (GTK_TREE_MODEL (list_store), iter, column, &value);
G_VALUE_LCOPY (&value, var_args, &error);
if (error)
{
g_warning ("%s: %s", G_STRLOC, error);
g_free (error);
/* we purposely leak the value here, it might not be
* in a sane state if an error condition occoured
*/
break;
}
g_value_unset (&value);
column = va_arg (var_args, gint);
}
}
void
gtk_list_store_get (GtkListStore *list_store,
GtkTreeIter *iter,
...)
{
va_list var_args;
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
va_start (var_args, iter);
gtk_list_store_get_valist (list_store, iter, var_args);
va_end (var_args);
}
static GSList*
remove_link_saving_prev (GSList *list,
GSList *link,
GSList **prevp)
{
GSList *tmp;
GSList *prev;
prev = NULL;
tmp = list;
while (tmp)
{
if (tmp == link)
{
if (prev)
prev->next = tmp->next;
if (list == tmp)
list = list->next;
tmp->next = NULL;
break;
}
prev = tmp;
tmp = tmp->next;
}
*prevp = prev;
return list;
}
static void
gtk_list_store_remove_silently (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreePath *path)
{
if (G_SLIST (iter->user_data)->data)
{
_gtk_tree_data_list_free ((GtkTreeDataList *) G_SLIST (iter->user_data)->data,
list_store->column_headers);
G_SLIST (iter->user_data)->data = NULL;
}
{
GSList *prev = NULL;
list_store->root = remove_link_saving_prev (G_SLIST (list_store->root),
G_SLIST (iter->user_data),
&prev);
if (iter->user_data == list_store->tail)
list_store->tail = prev;
}
list_store->stamp ++;
}
void
gtk_list_store_remove (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter->user_data != NULL);
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
gtk_list_store_remove_silently (list_store, iter, path);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"deleted",
path);
gtk_tree_path_free (path);
}
static void
insert_after (GtkListStore *list_store,
GSList *sibling,
GSList *new_list)
{
g_return_if_fail (sibling != NULL);
g_return_if_fail (new_list != NULL);
/* insert new node after list */
new_list->next = sibling->next;
sibling->next = new_list;
/* if list was the tail, the new node is the new tail */
if (sibling == list_store->tail)
list_store->tail = new_list;
}
void
gtk_list_store_insert (GtkListStore *list_store,
GtkTreeIter *iter,
gint position)
{
GSList *list;
GtkTreePath *path;
GSList *new_list;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
g_return_if_fail (position >= 0);
if (position == 0)
{
gtk_list_store_prepend (list_store, iter);
return;
}
new_list = g_slist_alloc ();
list = g_slist_nth (G_SLIST (list_store->root), position - 1);
if (list == NULL)
{
g_warning ("%s: position %d is off the end of the list\n", G_STRLOC, position);
return;
}
insert_after (list_store, list, new_list);
iter->stamp = list_store->stamp;
iter->user_data = new_list;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, position);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_insert_before (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkTreePath *path;
GSList *list, *prev, *new_list;
gint i = 0;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
if (sibling == NULL)
{
gtk_list_store_append (list_store, iter);
return;
}
new_list = g_slist_alloc ();
prev = list = list_store->root;
while (list && list != sibling->user_data)
{
prev = list;
list = list->next;
i++;
}
if (list != sibling->user_data)
{
g_warning ("%s: sibling iterator invalid? not found in the list", G_STRLOC);
return;
}
/* if there are no nodes, we become the list tail, otherwise we
* are inserting before any existing nodes so we can't change
* the tail
*/
if (list_store->root == NULL)
list_store->tail = new_list;
if (prev)
{
new_list->next = prev->next;
prev->next = new_list;
}
else
{
new_list->next = list_store->root;
list_store->root = new_list;
}
iter->stamp = list_store->stamp;
iter->user_data = new_list;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_insert_after (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkTreePath *path;
GSList *list, *new_list;
gint i = 0;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
if (sibling)
g_return_if_fail (sibling->stamp == list_store->stamp);
if (sibling == NULL)
{
gtk_list_store_prepend (list_store, iter);
return;
}
for (list = list_store->root; list && list != sibling->user_data; list = list->next)
i++;
g_return_if_fail (list == sibling->user_data);
new_list = g_slist_alloc ();
insert_after (list_store, list, new_list);
iter->stamp = list_store->stamp;
iter->user_data = new_list;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_prepend (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
iter->stamp = list_store->stamp;
iter->user_data = g_slist_alloc ();
if (list_store->root == NULL)
list_store->tail = iter->user_data;
G_SLIST (iter->user_data)->next = G_SLIST (list_store->root);
list_store->root = iter->user_data;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, 0);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_append (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
gint i = 0;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
iter->stamp = list_store->stamp;
iter->user_data = g_slist_alloc ();
if (list_store->tail)
list_store->tail->next = iter->user_data;
else
list_store->root = iter->user_data;
list_store->tail = iter->user_data;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
static gboolean
gtk_list_store_drag_data_delete (GtkTreeDragSource *drag_source,
GtkTreePath *path)
{
GtkTreeIter iter;
g_return_val_if_fail (GTK_IS_LIST_STORE (drag_source), FALSE);
if (gtk_tree_model_get_iter (GTK_TREE_MODEL (drag_source),
&iter,
path))
{
gtk_list_store_remove (GTK_LIST_STORE (drag_source),
&iter);
return TRUE;
}
else
{
return FALSE;
}
}
static gboolean
gtk_list_store_drag_data_get (GtkTreeDragSource *drag_source,
GtkTreePath *path,
GtkSelectionData *selection_data)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (drag_source), FALSE);
/* Note that we don't need to handle the GTK_TREE_MODEL_ROW
* target, because the default handler does it for us, but
* we do anyway for the convenience of someone maybe overriding the
* default handler.
*/
if (gtk_selection_data_set_tree_row (selection_data,
GTK_TREE_MODEL (drag_source),
path))
{
return TRUE;
}
else
{
/* FIXME handle text targets at least. */
}
return FALSE;
}
static gboolean
gtk_list_store_drag_data_received (GtkTreeDragDest *drag_dest,
GtkTreePath *dest,
GtkSelectionData *selection_data)
{
GtkTreeModel *tree_model;
GtkListStore *list_store;
GtkTreeModel *src_model = NULL;
GtkTreePath *src_path = NULL;
gboolean retval = FALSE;
g_return_val_if_fail (GTK_IS_LIST_STORE (drag_dest), FALSE);
tree_model = GTK_TREE_MODEL (drag_dest);
list_store = GTK_LIST_STORE (drag_dest);
if (gtk_selection_data_get_tree_row (selection_data,
&src_model,
&src_path) &&
src_model == tree_model)
{
/* Copy the given row to a new position */
GtkTreeIter src_iter;
GtkTreeIter dest_iter;
GtkTreePath *prev;
if (!gtk_tree_model_get_iter (src_model,
&src_iter,
src_path))
goto out;
/* Get the path to insert _after_ (dest is the path to insert _before_) */
prev = gtk_tree_path_copy (dest);
if (!gtk_tree_path_prev (prev))
{
/* dest was the first spot in the list; which means we are supposed
* to prepend.
*/
gtk_list_store_prepend (GTK_LIST_STORE (tree_model),
&dest_iter);
retval = TRUE;
}
else
{
if (gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_model),
&dest_iter,
prev))
{
GtkTreeIter tmp_iter = dest_iter;
gtk_list_store_insert_after (GTK_LIST_STORE (tree_model),
&dest_iter,
&tmp_iter);
retval = TRUE;
}
}
gtk_tree_path_free (prev);
/* If we succeeded in creating dest_iter, copy data from src
*/
if (retval)
{
GtkTreeDataList *dl = G_SLIST (src_iter.user_data)->data;
GtkTreeDataList *copy_head = NULL;
GtkTreeDataList *copy_prev = NULL;
GtkTreeDataList *copy_iter = NULL;
gint col;
col = 0;
while (dl)
{
copy_iter = _gtk_tree_data_list_node_copy (dl,
list_store->column_headers[col]);
g_print ("copied col %d type %s\n", col,
g_type_name (list_store->column_headers[col]));
if (copy_head == NULL)
copy_head = copy_iter;
if (copy_prev)
copy_prev->next = copy_iter;
copy_prev = copy_iter;
dl = dl->next;
++col;
}
G_SLIST (dest_iter.user_data)->data = copy_head;
gtk_signal_emit_by_name (GTK_OBJECT (tree_model),
"changed",
NULL, &dest_iter);
}
}
else
{
/* FIXME maybe add some data targets eventually, or handle text
* targets in the simple case.
*/
}
out:
if (src_path)
gtk_tree_path_free (src_path);
return retval;
}
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