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6d8dfd5546
gtk3/gtk/gtkcellview.c
Tristan Van Berkom 6d8dfd5546 Fixed GtkCellView to not clear the layout when disposing 
The layout belongs the underlying area which may be shared across
views and treemenus, let the cells be destroyed when the area is finally
destroyed.
2011-01-04 23:37:06 +09:00

1255 lines
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/* gtkellview.c
* Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org>
*
* 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 "config.h"
#include <string.h>
#include "gtkcellview.h"
#include "gtkcelllayout.h"
#include "gtkcellareabox.h"
#include "gtkintl.h"
#include "gtkcellrenderertext.h"
#include "gtkcellrendererpixbuf.h"
#include "gtkprivate.h"
#include "gtksizerequest.h"
#include <gobject/gmarshal.h>
#include "gtkbuildable.h"
/**
* SECTION:gtkcellview
* @Short_description: A widget displaying a single row of a GtkTreeModel
* @Title: GtkCellView
*
* A #GtkCellView displays a single row of a #GtkTreeModel, using
* cell renderers just like #GtkTreeView. #GtkCellView doesn't support
* some of the more complex features of #GtkTreeView, like cell editing
* and drag and drop.
*/
struct _GtkCellViewPrivate
{
GtkTreeModel *model;
GtkTreeRowReference *displayed_row;
GtkCellArea *area;
GtkCellAreaContext *context;
GdkRGBA background;
gboolean background_set;
gulong size_changed_id;
};
static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface);
static GObject *gtk_cell_view_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties);
static void gtk_cell_view_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void gtk_cell_view_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_cell_view_finalize (GObject *object);
static void gtk_cell_view_dispose (GObject *object);
static void gtk_cell_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_cell_view_draw (GtkWidget *widget,
cairo_t *cr);
static void gtk_cell_view_set_value (GtkCellView *cell_view,
GtkCellRenderer *renderer,
gchar *property,
GValue *value);
static void gtk_cell_view_set_cell_data (GtkCellView *cell_view);
static void gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *renderer,
const gchar *attribute,
gint column);
static void gtk_cell_view_cell_layout_clear (GtkCellLayout *layout);
static void gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *renderer);
static void gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position);
static GList * gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout);
static GtkCellArea *gtk_cell_view_cell_layout_get_area (GtkCellLayout *layout);
/* buildable */
static void gtk_cell_view_buildable_init (GtkBuildableIface *iface);
static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data);
static void gtk_cell_view_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_cell_view_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size);
static void gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget,
gint avail_size,
gint *minimum_size,
gint *natural_size);
static void context_size_changed_cb (GtkCellAreaContext *context,
GParamSpec *pspec,
GtkWidget *view);
static GtkBuildableIface *parent_buildable_iface;
enum
{
PROP_0,
PROP_BACKGROUND,
PROP_BACKGROUND_GDK,
PROP_BACKGROUND_RGBA,
PROP_BACKGROUND_SET,
PROP_MODEL,
PROP_CELL_AREA,
PROP_CELL_AREA_CONTEXT
};
G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_cell_view_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_cell_view_buildable_init))
static void
gtk_cell_view_class_init (GtkCellViewClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
gobject_class->constructor = gtk_cell_view_constructor;
gobject_class->get_property = gtk_cell_view_get_property;
gobject_class->set_property = gtk_cell_view_set_property;
gobject_class->finalize = gtk_cell_view_finalize;
gobject_class->dispose = gtk_cell_view_dispose;
widget_class->draw = gtk_cell_view_draw;
widget_class->size_allocate = gtk_cell_view_size_allocate;
widget_class->get_preferred_width = gtk_cell_view_get_preferred_width;
widget_class->get_preferred_height = gtk_cell_view_get_preferred_height;
widget_class->get_preferred_width_for_height = gtk_cell_view_get_preferred_width_for_height;
widget_class->get_preferred_height_for_width = gtk_cell_view_get_preferred_height_for_width;
/* properties */
g_object_class_install_property (gobject_class,
PROP_BACKGROUND,
g_param_spec_string ("background",
P_("Background color name"),
P_("Background color as a string"),
NULL,
GTK_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_BACKGROUND_GDK,
g_param_spec_boxed ("background-gdk",
P_("Background color"),
P_("Background color as a GdkColor"),
GDK_TYPE_COLOR,
GTK_PARAM_READWRITE));
/**
* GtkCellView:background-rgba
*
* The background color as a #GdkRGBA
*
* Since: 3.0
*/
g_object_class_install_property (gobject_class,
PROP_BACKGROUND_RGBA,
g_param_spec_boxed ("background-rgba",
P_("Background RGBA color"),
P_("Background color as a GdkRGBA"),
GDK_TYPE_RGBA,
GTK_PARAM_READWRITE));
/**
* GtkCellView:model
*
* The model for cell view
*
* since 2.10
*/
g_object_class_install_property (gobject_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("CellView model"),
P_("The model for cell view"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
/**
* GtkCellView:cell-area
*
* The #GtkCellArea rendering cells
*
* since 3.0
*/
g_object_class_install_property (gobject_class,
PROP_CELL_AREA,
g_param_spec_object ("cell-area",
P_("Cell Area"),
P_("The GtkCellArea used to layout cells"),
GTK_TYPE_CELL_AREA,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
/**
* GtkCellView:cell-area-context
*
* The #GtkCellAreaContext used to compute the geometry of the cell view.
*
* since 3.0
*/
g_object_class_install_property (gobject_class,
PROP_CELL_AREA_CONTEXT,
g_param_spec_object ("cell-area-context",
P_("Cell Area Context"),
P_("The GtkCellAreaContext used to "
"compute the geometry of the cell view"),
GTK_TYPE_CELL_AREA_CONTEXT,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
#define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
P_("Background set"),
P_("Whether this tag affects the background color"));
g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
}
static void
gtk_cell_view_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = _gtk_cell_layout_buildable_add_child;
iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
}
static void
gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_cell_view_cell_layout_pack_start;
iface->pack_end = gtk_cell_view_cell_layout_pack_end;
iface->clear = gtk_cell_view_cell_layout_clear;
iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
iface->reorder = gtk_cell_view_cell_layout_reorder;
iface->get_cells = gtk_cell_view_cell_layout_get_cells;
iface->get_area = gtk_cell_view_cell_layout_get_area;
}
static GObject *
gtk_cell_view_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_properties)
{
GObject *object;
GtkCellView *view;
GtkCellViewPrivate *priv;
object = G_OBJECT_CLASS (gtk_cell_view_parent_class)->constructor
(type, n_construct_properties, construct_properties);
view = GTK_CELL_VIEW (object);
priv = view->priv;
if (!priv->area)
{
GtkCellArea *area = gtk_cell_area_box_new ();
priv->area = g_object_ref_sink (area);
}
if (!priv->context)
priv->context = gtk_cell_area_create_context (priv->area);
priv->size_changed_id =
g_signal_connect (priv->context, "notify",
G_CALLBACK (context_size_changed_cb), view);
return object;
}
static void
gtk_cell_view_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellView *view = GTK_CELL_VIEW (object);
switch (param_id)
{
case PROP_BACKGROUND_GDK:
{
GdkColor color;
color.red = (guint) (view->priv->background.red * 65535);
color.green = (guint) (view->priv->background.green * 65535);
color.blue = (guint) (view->priv->background.blue * 65535);
color.pixel = 0;
g_value_set_boxed (value, &color);
}
break;
case PROP_BACKGROUND_RGBA:
g_value_set_boxed (value, &view->priv->background);
break;
case PROP_BACKGROUND_SET:
g_value_set_boolean (value, view->priv->background_set);
break;
case PROP_MODEL:
g_value_set_object (value, view->priv->model);
break;
case PROP_CELL_AREA:
g_value_set_object (value, view->priv->area);
break;
case PROP_CELL_AREA_CONTEXT:
g_value_set_object (value, view->priv->context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
gtk_cell_view_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellView *view = GTK_CELL_VIEW (object);
GtkCellArea *area;
GtkCellAreaContext *context;
switch (param_id)
{
case PROP_BACKGROUND:
{
GdkColor color;
if (!g_value_get_string (value))
gtk_cell_view_set_background_color (view, NULL);
else if (gdk_color_parse (g_value_get_string (value), &color))
gtk_cell_view_set_background_color (view, &color);
else
g_warning ("Don't know color `%s'", g_value_get_string (value));
g_object_notify (object, "background-gdk");
}
break;
case PROP_BACKGROUND_GDK:
gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
break;
case PROP_BACKGROUND_RGBA:
gtk_cell_view_set_background_rgba (view, g_value_get_boxed (value));
break;
case PROP_BACKGROUND_SET:
view->priv->background_set = g_value_get_boolean (value);
break;
case PROP_MODEL:
gtk_cell_view_set_model (view, g_value_get_object (value));
break;
case PROP_CELL_AREA:
/* Construct-only, can only be assigned once */
area = g_value_get_object (value);
if (area)
view->priv->area = g_object_ref_sink (area);
break;
case PROP_CELL_AREA_CONTEXT:
/* Construct-only, can only be assigned once */
context = g_value_get_object (value);
if (context)
view->priv->context = g_object_ref (context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
gtk_cell_view_init (GtkCellView *cellview)
{
GtkCellViewPrivate *priv;
cellview->priv = G_TYPE_INSTANCE_GET_PRIVATE (cellview,
GTK_TYPE_CELL_VIEW,
GtkCellViewPrivate);
priv = cellview->priv;
gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE);
}
static void
gtk_cell_view_finalize (GObject *object)
{
GtkCellView *cellview = GTK_CELL_VIEW (object);
if (cellview->priv->displayed_row)
gtk_tree_row_reference_free (cellview->priv->displayed_row);
G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object);
}
static void
gtk_cell_view_dispose (GObject *object)
{
GtkCellView *cellview = GTK_CELL_VIEW (object);
if (cellview->priv->model)
{
g_object_unref (cellview->priv->model);
cellview->priv->model = NULL;
}
if (cellview->priv->area)
{
g_object_unref (cellview->priv->area);
cellview->priv->area = NULL;
}
if (cellview->priv->context)
{
g_signal_handler_disconnect (cellview->priv->context, cellview->priv->size_changed_id);
g_object_unref (cellview->priv->context);
cellview->priv->context = NULL;
cellview->priv->size_changed_id = 0;
}
G_OBJECT_CLASS (gtk_cell_view_parent_class)->dispose (object);
}
static void
gtk_cell_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCellView *cellview = GTK_CELL_VIEW (widget);
GtkCellViewPrivate *priv = cellview->priv;
gint alloc_width, alloc_height;
gtk_widget_set_allocation (widget, allocation);
gtk_cell_area_context_get_allocation (priv->context, &alloc_width, &alloc_height);
/* The first cell view in context is responsible for allocating the context at allocate time
* (or the cellview has its own context and is not grouped with any other cell views) */
if (alloc_width <= 0 && alloc_height <= 0)
{
gtk_cell_area_context_allocate_width (priv->context, allocation->width);
gtk_cell_area_context_allocate_height (priv->context, allocation->height);
}
}
static gboolean
gtk_cell_view_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkCellView *cellview;
GdkRectangle area;
GtkCellRendererState state;
cellview = GTK_CELL_VIEW (widget);
/* render cells */
area.x = 0;
area.y = 0;
area.width = gtk_widget_get_allocated_width (widget);
area.height = gtk_widget_get_allocated_height (widget);
/* "blank" background */
if (cellview->priv->background_set)
{
gdk_cairo_rectangle (cr, &area);
gdk_cairo_set_source_rgba (cr, &cellview->priv->background);
cairo_fill (cr);
}
/* set cell data (if available) */
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
else if (cellview->priv->model)
return FALSE;
if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_PRELIGHT)
state = GTK_CELL_RENDERER_PRELIT;
else if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_INSENSITIVE)
state = GTK_CELL_RENDERER_INSENSITIVE;
else
state = 0;
/* Render the cells */
gtk_cell_area_render (cellview->priv->area, cellview->priv->context,
widget, cr, &area, &area, state, FALSE);
return FALSE;
}
static void
gtk_cell_view_set_cell_data (GtkCellView *cell_view)
{
GtkTreeIter iter;
GtkTreePath *path;
g_return_if_fail (cell_view->priv->displayed_row != NULL);
path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
if (!path)
return;
gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
gtk_tree_path_free (path);
gtk_cell_area_apply_attributes (cell_view->priv->area,
cell_view->priv->model,
&iter, FALSE, FALSE);
}
/* GtkCellLayout implementation */
static void
gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview->priv->area), renderer, expand);
gtk_widget_queue_resize (GTK_WIDGET (cellview));
}
static void
gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (cellview->priv->area), renderer, expand);
gtk_widget_queue_resize (GTK_WIDGET (cellview));
}
static void
gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout,
GtkCellRenderer *renderer,
const gchar *attribute,
gint column)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (cellview->priv->area), renderer,
attribute, column);
}
static void
gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
if (cellview->priv->area)
gtk_cell_layout_clear (GTK_CELL_LAYOUT (cellview->priv->area));
}
static void
gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (cellview->priv->area),
cell, func, func_data, destroy);
}
static void
gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *renderer)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (cellview->priv->area), renderer);
}
static void
gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (cellview->priv->area), cell, position);
}
static GList *
gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
return gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cellview->priv->area));
}
static GtkCellArea *
gtk_cell_view_cell_layout_get_area (GtkCellLayout *layout)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
return cellview->priv->area;
}
static void
context_size_changed_cb (GtkCellAreaContext *context,
GParamSpec *pspec,
GtkWidget *view)
{
if (!strcmp (pspec->name, "minimum-width") ||
!strcmp (pspec->name, "natural-width") ||
!strcmp (pspec->name, "minimum-height") ||
!strcmp (pspec->name, "natural-height"))
gtk_widget_queue_resize (view);
}
/**
* gtk_cell_view_new:
*
* Creates a new #GtkCellView widget.
*
* Return value: A newly created #GtkCellView widget.
*
* Since: 2.6
*/
GtkWidget *
gtk_cell_view_new (void)
{
GtkCellView *cellview;
cellview = g_object_new (gtk_cell_view_get_type (), NULL);
return GTK_WIDGET (cellview);
}
/**
* gtk_cell_view_new_with_context:
* @area: the #GtkCellArea to layout cells
* @context: the #GtkCellAreaContext in which to calculate cell geometry
*
* Creates a new #GtkCellView widget with a specific #GtkCellArea
* to layout cells and a specific #GtkCellAreaContext.
*
* Specifying the same context for a handfull of cells lets
* the underlying area synchronize the geometry for those cells,
* in this way alignments with cellviews for other rows are
* possible.
*
* Return value: A newly created #GtkCellView widget.
*
* Since: 2.6
*/
GtkWidget *
gtk_cell_view_new_with_context (GtkCellArea *area,
GtkCellAreaContext *context)
{
g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL);
g_return_val_if_fail (context == NULL || GTK_IS_CELL_AREA_CONTEXT (context), NULL);
return (GtkWidget *)g_object_new (GTK_TYPE_CELL_VIEW,
"cell-area", area,
"cell-area-context", context,
NULL);
}
/**
* gtk_cell_view_new_with_text:
* @text: the text to display in the cell view
*
* Creates a new #GtkCellView widget, adds a #GtkCellRendererText
* to it, and makes its show @text.
*
* Return value: A newly created #GtkCellView widget.
*
* Since: 2.6
*/
GtkWidget *
gtk_cell_view_new_with_text (const gchar *text)
{
GtkCellView *cellview;
GtkCellRenderer *renderer;
GValue value = {0, };
cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
renderer = gtk_cell_renderer_text_new ();
gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
renderer, TRUE);
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, text);
gtk_cell_view_set_value (cellview, renderer, "text", &value);
g_value_unset (&value);
return GTK_WIDGET (cellview);
}
/**
* gtk_cell_view_new_with_markup:
* @markup: the text to display in the cell view
*
* Creates a new #GtkCellView widget, adds a #GtkCellRendererText
* to it, and makes it show @markup. The text can be
* marked up with the <link linkend="PangoMarkupFormat">Pango text
* markup language</link>.
*
* Return value: A newly created #GtkCellView widget.
*
* Since: 2.6
*/
GtkWidget *
gtk_cell_view_new_with_markup (const gchar *markup)
{
GtkCellView *cellview;
GtkCellRenderer *renderer;
GValue value = {0, };
cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
renderer = gtk_cell_renderer_text_new ();
gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
renderer, TRUE);
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, markup);
gtk_cell_view_set_value (cellview, renderer, "markup", &value);
g_value_unset (&value);
return GTK_WIDGET (cellview);
}
/**
* gtk_cell_view_new_with_pixbuf:
* @pixbuf: the image to display in the cell view
*
* Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
* to it, and makes its show @pixbuf.
*
* Return value: A newly created #GtkCellView widget.
*
* Since: 2.6
*/
GtkWidget *
gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
{
GtkCellView *cellview;
GtkCellRenderer *renderer;
GValue value = {0, };
cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
renderer = gtk_cell_renderer_pixbuf_new ();
gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
renderer, TRUE);
g_value_init (&value, GDK_TYPE_PIXBUF);
g_value_set_object (&value, pixbuf);
gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
g_value_unset (&value);
return GTK_WIDGET (cellview);
}
/**
* gtk_cell_view_set_value:
* @cell_view: a #GtkCellView widget
* @renderer: one of the renderers of @cell_view
* @property: the name of the property of @renderer to set
* @value: the new value to set the property to
*
* Sets a property of a cell renderer of @cell_view, and
* makes sure the display of @cell_view is updated.
*
* Since: 2.6
*/
static void
gtk_cell_view_set_value (GtkCellView *cell_view,
GtkCellRenderer *renderer,
gchar *property,
GValue *value)
{
g_object_set_property (G_OBJECT (renderer), property, value);
/* force resize and redraw */
gtk_widget_queue_resize (GTK_WIDGET (cell_view));
gtk_widget_queue_draw (GTK_WIDGET (cell_view));
}
/**
* gtk_cell_view_set_model:
* @cell_view: a #GtkCellView
* @model: (allow-none): a #GtkTreeModel
*
* Sets the model for @cell_view. If @cell_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.
*
* Since: 2.6
*/
void
gtk_cell_view_set_model (GtkCellView *cell_view,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (cell_view->priv->model)
{
if (cell_view->priv->displayed_row)
gtk_tree_row_reference_free (cell_view->priv->displayed_row);
cell_view->priv->displayed_row = NULL;
g_object_unref (cell_view->priv->model);
cell_view->priv->model = NULL;
}
cell_view->priv->model = model;
if (cell_view->priv->model)
g_object_ref (cell_view->priv->model);
}
/**
* gtk_cell_view_get_model:
* @cell_view: a #GtkCellView
*
* Returns the model for @cell_view. If no model is used %NULL is
* returned.
*
* Returns: (transfer none): a #GtkTreeModel used or %NULL
*
* Since: 2.16
**/
GtkTreeModel *
gtk_cell_view_get_model (GtkCellView *cell_view)
{
g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
return cell_view->priv->model;
}
/**
* gtk_cell_view_set_displayed_row:
* @cell_view: a #GtkCellView
* @path: (allow-none): a #GtkTreePath or %NULL to unset.
*
* Sets the row of the model that is currently displayed
* by the #GtkCellView. If the path is unset, then the
* contents of the cellview "stick" at their last value;
* this is not normally a desired result, but may be
* a needed intermediate state if say, the model for
* the #GtkCellView becomes temporarily empty.
*
* Since: 2.6
**/
void
gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
if (cell_view->priv->displayed_row)
gtk_tree_row_reference_free (cell_view->priv->displayed_row);
if (path)
{
cell_view->priv->displayed_row =
gtk_tree_row_reference_new (cell_view->priv->model, path);
}
else
cell_view->priv->displayed_row = NULL;
/* force resize and redraw */
gtk_widget_queue_resize (GTK_WIDGET (cell_view));
gtk_widget_queue_draw (GTK_WIDGET (cell_view));
}
/**
* gtk_cell_view_get_displayed_row:
* @cell_view: a #GtkCellView
*
* Returns a #GtkTreePath referring to the currently
* displayed row. If no row is currently displayed,
* %NULL is returned.
*
* Returns: the currently displayed row or %NULL
*
* Since: 2.6
*/
GtkTreePath *
gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
{
g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
if (!cell_view->priv->displayed_row)
return NULL;
return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
}
/**
* gtk_cell_view_get_size_of_row:
* @cell_view: a #GtkCellView
* @path: a #GtkTreePath
* @requisition: return location for the size
*
* Sets @requisition to the size needed by @cell_view to display
* the model row pointed to by @path.
*
* Return value: %TRUE
*
* Since: 2.6
*
* Deprecated: 3.0: Use gtk_cell_view_get_desired_width_of_row() and
* gtk_cell_view_get_desired_height_for_width_of_row() instead.
*/
gboolean
gtk_cell_view_get_size_of_row (GtkCellView *cell_view,
GtkTreePath *path,
GtkRequisition *requisition)
{
GtkRequisition req;
g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
g_return_val_if_fail (path != NULL, FALSE);
/* Return the minimum height for the minimum width */
gtk_cell_view_get_desired_width_of_row (cell_view, path, &req.width, NULL);
gtk_cell_view_get_desired_height_for_width_of_row (cell_view, path, req.width, &req.height, NULL);
if (requisition)
*requisition = req;
return TRUE;
}
/**
* gtk_cell_view_get_desired_width_of_row:
* @cell_view: a #GtkCellView
* @path: a #GtkTreePath
* @minimum_size: location to store the minimum size
* @natural_size: location to store the natural size
*
* Sets @minimum_size and @natural_size to the width desired by @cell_view
* to display the model row pointed to by @path.
*
* Since: 3.0
*/
void
gtk_cell_view_get_desired_width_of_row (GtkCellView *cell_view,
GtkTreePath *path,
gint *minimum_size,
gint *natural_size)
{
GtkTreeRowReference *tmp;
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
g_return_if_fail (path != NULL);
g_return_if_fail (minimum_size != NULL || natural_size != NULL);
tmp = cell_view->priv->displayed_row;
cell_view->priv->displayed_row =
gtk_tree_row_reference_new (cell_view->priv->model, path);
gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), minimum_size, natural_size);
gtk_tree_row_reference_free (cell_view->priv->displayed_row);
cell_view->priv->displayed_row = tmp;
/* Restore active size (this will restore the cellrenderer info->width/requested_width's) */
gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), NULL, NULL);
}
/**
* gtk_cell_view_get_desired_height_for_width_of_row:
* @cell_view: a #GtkCellView
* @path: a #GtkTreePath
* @avail_size: available width
* @minimum_size: location to store the minimum height
* @natural_size: location to store the natural height
*
* Sets @minimum_size and @natural_size to the height desired by @cell_view
* if it were allocated a width of @avail_size to display the model row
* pointed to by @path.
*
* Since: 3.0
*/
void
gtk_cell_view_get_desired_height_for_width_of_row (GtkCellView *cell_view,
GtkTreePath *path,
gint avail_size,
gint *minimum_size,
gint *natural_size)
{
GtkTreeRowReference *tmp;
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
g_return_if_fail (path != NULL);
g_return_if_fail (minimum_size != NULL || natural_size != NULL);
tmp = cell_view->priv->displayed_row;
cell_view->priv->displayed_row =
gtk_tree_row_reference_new (cell_view->priv->model, path);
/* Then get the collective height_for_width based on the cached values */
gtk_cell_view_get_preferred_height_for_width (GTK_WIDGET (cell_view), avail_size, minimum_size, natural_size);
gtk_tree_row_reference_free (cell_view->priv->displayed_row);
cell_view->priv->displayed_row = tmp;
/* Restore active size (this will restore the cellrenderer info->width/requested_width's) */
gtk_cell_view_get_preferred_width (GTK_WIDGET (cell_view), NULL, NULL);
}
/**
* gtk_cell_view_set_background_color:
* @cell_view: a #GtkCellView
* @color: the new background color
*
* Sets the background color of @view.
*
* Since: 2.6
*/
void
gtk_cell_view_set_background_color (GtkCellView *cell_view,
const GdkColor *color)
{
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
if (color)
{
if (!cell_view->priv->background_set)
{
cell_view->priv->background_set = TRUE;
g_object_notify (G_OBJECT (cell_view), "background-set");
}
cell_view->priv->background.red = color->red / 65535.;
cell_view->priv->background.green = color->green / 65535.;
cell_view->priv->background.blue = color->blue / 65535.;
cell_view->priv->background.alpha = 1;
}
else
{
if (cell_view->priv->background_set)
{
cell_view->priv->background_set = FALSE;
g_object_notify (G_OBJECT (cell_view), "background-set");
}
}
gtk_widget_queue_draw (GTK_WIDGET (cell_view));
}
/**
* gtk_cell_view_set_background_rgba:
* @cell_view: a #GtkCellView
* @rgba: the new background color
*
* Sets the background color of @cell_view.
*
* Since: 3.0
*/
void
gtk_cell_view_set_background_rgba (GtkCellView *cell_view,
const GdkRGBA *rgba)
{
g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
if (rgba)
{
if (!cell_view->priv->background_set)
{
cell_view->priv->background_set = TRUE;
g_object_notify (G_OBJECT (cell_view), "background-set");
}
cell_view->priv->background = *rgba;
}
else
{
if (cell_view->priv->background_set)
{
cell_view->priv->background_set = FALSE;
g_object_notify (G_OBJECT (cell_view), "background-set");
}
}
gtk_widget_queue_draw (GTK_WIDGET (cell_view));
}
static gboolean
gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
if (parent_buildable_iface->custom_tag_start &&
parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, data))
return TRUE;
return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
tagname, parser, data);
}
static void
gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer *data)
{
if (strcmp (tagname, "attributes") == 0)
_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
data);
else if (parent_buildable_iface->custom_tag_end)
parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
data);
}
static void
gtk_cell_view_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
GtkCellView *cellview = GTK_CELL_VIEW (widget);
GtkCellViewPrivate *priv = cellview->priv;
g_signal_handler_block (priv->context, priv->size_changed_id);
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
gtk_cell_area_get_preferred_width (priv->area, priv->context, widget, NULL, NULL);
gtk_cell_area_context_sum_preferred_width (priv->context);
gtk_cell_area_context_get_preferred_width (priv->context, minimum_size, natural_size);
g_signal_handler_unblock (priv->context, priv->size_changed_id);
}
static void
gtk_cell_view_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
GtkCellView *cellview = GTK_CELL_VIEW (widget);
GtkCellViewPrivate *priv = cellview->priv;
g_signal_handler_block (priv->context, priv->size_changed_id);
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
gtk_cell_area_get_preferred_height (priv->area, priv->context, widget, NULL, NULL);
gtk_cell_area_context_sum_preferred_height (priv->context);
gtk_cell_area_context_get_preferred_height (priv->context, minimum_size, natural_size);
g_signal_handler_unblock (priv->context, priv->size_changed_id);
}
static void
gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
GtkCellView *cellview = GTK_CELL_VIEW (widget);
GtkCellViewPrivate *priv = cellview->priv;
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, widget,
for_size, minimum_size, natural_size);
}
static void
gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
GtkCellView *cellview = GTK_CELL_VIEW (widget);
GtkCellViewPrivate *priv = cellview->priv;
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, widget,
for_size, minimum_size, natural_size);
}
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