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gtk/gtk/gtkcellview.c
Benjamin Otte e66129015d cellrenderer: Merge GtkCellSizeRequest into GtkCellRenderer 
This mostly goes to keep consistency with the changes to GtkSizeRequest
in the last patch, as GtkCellSizeRequest requires GtkCellRenderer and
GtkCellRenderer implements GtkCellSizeRequest there's no use in keeping
them separate.

This patch renames the functions:
gtk_cell_size_request_get_request_mode()
  => gtk_cell_renderer_get_request_mode()
gtk_cell_size_request_get_width()
  => gtk_cell_renderer_get_preferred_width()
gtk_cell_size_request_get_height()
  => gtk_cell_renderer_get_preferred_height()
gtk_cell_size_request_get_size()
  => gtk_cell_renderer_get_preferred_size()
gtk_cell_size_request_get_width_for_height()
  => gtk_cell_renderer_get_preferred_width_for_height()
gtk_cell_size_request_get_height_for_width()
  => gtk_cell_renderer_get_preferred_height_for_width()
... and moves the corresponding vfuncs to GtkCellRenderer.

The patch also renames the implementations of these functions in cell
renderers to include the word "preferrred".
2010-09-26 15:11:45 +02:00

1371 lines
42 KiB
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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 "gtkintl.h"
#include "gtkcellrenderertext.h"
#include "gtkcellrendererpixbuf.h"
#include "gtkprivate.h"
#include "gtksizerequest.h"
#include <gobject/gmarshal.h>
#include "gtkbuildable.h"
typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
struct _GtkCellViewCellInfo
{
GtkCellRenderer *cell;
gint requested_width;
gint natural_width;
gint real_width;
guint expand : 1;
guint pack : 1;
GSList *attributes;
GtkCellLayoutDataFunc func;
gpointer func_data;
GDestroyNotify destroy;
};
struct _GtkCellViewPrivate
{
GtkTreeModel *model;
GtkTreeRowReference *displayed_row;
GList *cell_list;
gint spacing;
GdkColor background;
gboolean background_set;
};
static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface);
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_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 GtkCellViewCellInfo *gtk_cell_view_get_cell_info (GtkCellView *cellview,
GtkCellRenderer *renderer);
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);
/* 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 GtkBuildableIface *parent_buildable_iface;
enum
{
PROP_0,
PROP_BACKGROUND,
PROP_BACKGROUND_GDK,
PROP_BACKGROUND_SET,
PROP_MODEL
};
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->get_property = gtk_cell_view_get_property;
gobject_class->set_property = gtk_cell_view_set_property;
gobject_class->finalize = gtk_cell_view_finalize;
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: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));
#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;
}
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 = view->priv->background;
g_value_set_boxed (value, &color);
}
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;
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);
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_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;
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);
gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
if (cellview->priv->model)
g_object_unref (cellview->priv->model);
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_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkCellView *cellview;
GtkRequestedSize *sizes;
GList *list;
gint n_visible_cells, n_expand_cells;
gint avail_width = 0;
gint extra_per_cell, extra_extra, i;
gboolean first_cell = TRUE;
gtk_widget_set_allocation (widget, allocation);
cellview = GTK_CELL_VIEW (widget);
avail_width = allocation->width;
/* Count visible/expand children */
for (n_visible_cells = 0, n_expand_cells = 0, list = cellview->priv->cell_list;
list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
n_visible_cells++;
if (info->expand)
n_expand_cells++;
}
sizes = g_new0 (GtkRequestedSize, n_visible_cells);
/* checking how much extra space we have */
for (i = 0, list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
sizes[i].data = info;
sizes[i].minimum_size = info->requested_width;
sizes[i].natural_size = info->natural_width;
if (!first_cell)
avail_width -= cellview->priv->spacing;
avail_width -= sizes[i].minimum_size;
first_cell = FALSE;
i++;
}
avail_width = gtk_distribute_natural_allocation (MAX (0, avail_width), n_visible_cells, sizes);
/* Deal with any expand space... */
if (n_expand_cells > 0)
{
extra_per_cell = avail_width / n_expand_cells;
extra_extra = avail_width % n_expand_cells;
}
else
/* Everything just left-aligned if no cells expand */
extra_per_cell = extra_extra = 0;
for (i = 0, list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
info->real_width = sizes[i].minimum_size;
if (info->expand)
{
info->real_width += extra_per_cell;
if (extra_extra)
{
info->real_width++;
extra_extra--;
}
}
/* increment index into sizes for visible children */
i++;
}
g_free (sizes);
}
static gboolean
gtk_cell_view_draw (GtkWidget *widget,
cairo_t *cr)
{
GList *list;
GtkCellView *cellview;
GdkRectangle area;
GtkCellRendererState state;
gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
GtkPackType packing;
int width;
cellview = GTK_CELL_VIEW (widget);
/* render cells */
area.x = 0;
area.y = 0;
area.width = 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_color (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 (widget) == GTK_STATE_PRELIGHT)
state = GTK_CELL_RENDERER_PRELIT;
else if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
state = GTK_CELL_RENDERER_INSENSITIVE;
else
state = 0;
for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
{
if (packing == GTK_PACK_START)
area.x = rtl ? width : 0;
else
area.x = rtl ? 0 : width;
for (list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
if (info->pack != packing)
continue;
if (!gtk_cell_renderer_get_visible (info->cell))
continue;
area.width = info->real_width;
if ((packing == GTK_PACK_START && rtl) ||
(packing == GTK_PACK_END && !rtl))
area.x -= area.width;
gtk_cell_renderer_render (info->cell,
cr,
widget,
/* FIXME! */
&area, &area, state);
if ((packing == GTK_PACK_START && !rtl) ||
(packing == GTK_PACK_END && rtl))
{
area.x += area.width;
area.x += cellview->priv->spacing;
}
else
area.x -= cellview->priv->spacing;
}
}
return FALSE;
}
static GtkCellViewCellInfo *
gtk_cell_view_get_cell_info (GtkCellView *cellview,
GtkCellRenderer *renderer)
{
GList *i;
for (i = cellview->priv->cell_list; i; i = i->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
if (info->cell == renderer)
return info;
}
return NULL;
}
static void
gtk_cell_view_set_cell_data (GtkCellView *cell_view)
{
GList *i;
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);
for (i = cell_view->priv->cell_list; i; i = i->next)
{
GSList *j;
GtkCellViewCellInfo *info = i->data;
g_object_freeze_notify (G_OBJECT (info->cell));
for (j = info->attributes; j && j->next; j = j->next->next)
{
gchar *property = j->data;
gint column = GPOINTER_TO_INT (j->next->data);
GValue value = {0, };
gtk_tree_model_get_value (cell_view->priv->model, &iter,
column, &value);
g_object_set_property (G_OBJECT (info->cell),
property, &value);
g_value_unset (&value);
}
if (info->func)
(* info->func) (GTK_CELL_LAYOUT (cell_view),
info->cell,
cell_view->priv->model,
&iter,
info->func_data);
g_object_thaw_notify (G_OBJECT (info->cell));
}
}
/* GtkCellLayout implementation */
static void
gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellViewCellInfo *info;
GtkCellView *cellview = GTK_CELL_VIEW (layout);
g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
g_object_ref_sink (renderer);
info = g_slice_new0 (GtkCellViewCellInfo);
info->cell = renderer;
info->expand = expand ? TRUE : FALSE;
info->pack = GTK_PACK_START;
cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
gtk_widget_queue_resize (GTK_WIDGET (cellview));
}
static void
gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellViewCellInfo *info;
GtkCellView *cellview = GTK_CELL_VIEW (layout);
g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
g_object_ref_sink (renderer);
info = g_slice_new0 (GtkCellViewCellInfo);
info->cell = renderer;
info->expand = expand ? TRUE : FALSE;
info->pack = GTK_PACK_END;
cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
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)
{
GtkCellViewCellInfo *info;
GtkCellView *cellview = GTK_CELL_VIEW (layout);
info = gtk_cell_view_get_cell_info (cellview, renderer);
g_return_if_fail (info != NULL);
info->attributes = g_slist_prepend (info->attributes,
GINT_TO_POINTER (column));
info->attributes = g_slist_prepend (info->attributes,
g_strdup (attribute));
}
static void
gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
while (cellview->priv->cell_list)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
g_object_unref (info->cell);
g_slice_free (GtkCellViewCellInfo, info);
cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
cellview->priv->cell_list);
}
}
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);
GtkCellViewCellInfo *info;
info = gtk_cell_view_get_cell_info (cellview, cell);
g_return_if_fail (info != NULL);
if (info->destroy)
{
GDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
info->func = func;
info->func_data = func_data;
info->destroy = destroy;
}
static void
gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout,
GtkCellRenderer *renderer)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
GtkCellViewCellInfo *info;
GSList *list;
info = gtk_cell_view_get_cell_info (cellview, renderer);
if (info != NULL)
{
list = info->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
info->attributes = NULL;
}
}
static void
gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout,
GtkCellRenderer *cell,
gint position)
{
GtkCellView *cellview = GTK_CELL_VIEW (layout);
GtkCellViewCellInfo *info;
GList *link;
info = gtk_cell_view_get_cell_info (cellview, cell);
g_return_if_fail (info != NULL);
g_return_if_fail (position >= 0);
link = g_list_find (cellview->priv->cell_list, info);
g_return_if_fail (link != NULL);
cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
link);
cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
info, position);
gtk_widget_queue_draw (GTK_WIDGET (cellview));
}
/**
* 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_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 = *color;
}
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 GList *
gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
{
GtkCellView *cell_view = GTK_CELL_VIEW (layout);
GList *retval = NULL, *list;
g_return_val_if_fail (cell_view != NULL, NULL);
gtk_cell_view_set_cell_data (cell_view);
for (list = cell_view->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
retval = g_list_prepend (retval, info->cell);
}
return g_list_reverse (retval);
}
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)
{
GList *list;
gint cell_min, cell_nat;
gboolean first_cell = TRUE;
GtkCellView *cellview = GTK_CELL_VIEW (widget);
gint minimum, natural;
minimum = natural = 0;
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
for (list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
if (gtk_cell_renderer_get_visible (info->cell))
{
if (!first_cell)
{
minimum += cellview->priv->spacing;
natural += cellview->priv->spacing;
}
gtk_cell_renderer_get_preferred_width (info->cell,
GTK_WIDGET (cellview), &cell_min, &cell_nat);
info->requested_width = cell_min;
info->natural_width = cell_nat;
minimum += info->requested_width;
natural += info->natural_width;
first_cell = FALSE;
}
}
if (minimum_size)
*minimum_size = minimum;
if (natural_size)
*natural_size = natural;
}
static void
gtk_cell_view_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
gint minimum_width;
/* CellViews only need to respond to height-for-width mode (cellview is pretty much
* an implementation detail of GtkComboBox) */
gtk_cell_view_get_preferred_width (widget, &minimum_width, NULL);
gtk_cell_view_get_preferred_height_for_width (widget, minimum_width, minimum_size, natural_size);
}
static void
gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
/* CellViews only need to respond to height-for-width mode (cellview is pretty much
* an implementation detail of GtkComboBox) */
gtk_cell_view_get_preferred_width (widget, 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);
GList *list;
GtkRequestedSize *sizes;
GArray *array;
gint minimum, natural, avail_size;
gboolean first_cell = TRUE;
gint n_expand_cells = 0;
gint extra_per_cell, extra_extra, i;
minimum = natural = 0;
avail_size = for_size;
array = g_array_new (0, TRUE, sizeof (GtkRequestedSize));
if (cellview->priv->displayed_row)
gtk_cell_view_set_cell_data (cellview);
/* First allocate the right width to all cells */
for (list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
if (gtk_cell_renderer_get_visible (info->cell))
{
GtkRequestedSize requested;
gtk_cell_renderer_get_preferred_width (GTK_CELL_RENDERER (info->cell),
GTK_WIDGET (cellview),
&requested.minimum_size,
&requested.natural_size);
requested.data = info;
g_array_append_val (array, requested);
avail_size -= requested.minimum_size;
if (!first_cell)
avail_size -= cellview->priv->spacing;
first_cell = FALSE;
if (info->expand)
n_expand_cells++;
}
}
sizes = (GtkRequestedSize *)array->data;
avail_size = gtk_distribute_natural_allocation (MAX (0, avail_size), array->len, sizes);
/* Deal with any expand space... */
if (n_expand_cells > 0)
{
extra_per_cell = avail_size / n_expand_cells;
extra_extra = avail_size % n_expand_cells;
}
else
/* Everything just left-aligned if no cells expand */
extra_per_cell = extra_extra = 0;
/* Now get the height for the real width of each cell */
for (i = 0, list = cellview->priv->cell_list; list; list = list->next)
{
GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
gint cell_minimum, cell_natural;
if (gtk_cell_renderer_get_visible (info->cell))
{
gint cell_width = sizes[i].minimum_size;
g_assert (sizes[i].data == info);
if (info->expand)
{
cell_width += extra_per_cell;
if (extra_extra)
{
cell_width++;
extra_extra--;
}
}
/* Get the height for the real width of this cell */
gtk_cell_renderer_get_preferred_height_for_width (GTK_CELL_RENDERER (info->cell),
GTK_WIDGET (widget),
cell_width, &cell_minimum, &cell_natural);
minimum = MAX (minimum, cell_minimum);
natural = MAX (natural, cell_natural);
/* increment sizes[] index for visible cells */
i++;
}
}
g_array_free (array, TRUE);
if (minimum_size)
*minimum_size = minimum;
if (natural_size)
*natural_size = natural;
}
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