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Implemented basic child list handling on GtkCellAreaBox

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Added the child list to GtkCellAreaBox, added _pack_start() and
_pack_end() apis to GtkCellAreaBox since they are appropriate there
and implemented GtkCellLayoutIface to override the _pack_start()/end()
methods (since the base GtkCellArea class simply forwards these apis
to the generic ->add() api on the base class).
This commit is contained in:
Tristan Van Berkom 2010-10-24 20:01:04 +09:00
parent 0722fbe7c8
commit 468a1d3e7c
3 changed files with 243 additions and 62 deletions
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121
gtk/gtkcellarea.c
View File

@ -84,6 +84,8 @@ static CellAttribute *cell_attribute_new (GtkCellRenderer *renderer,
const gchar *attribute,
gint column);
static void cell_attribute_free (CellAttribute *attribute);
static gint cell_attribute_find (CellAttribute *cell_attribute,
const gchar *attribute);
/* Struct to pass data along while looping over
* cell renderers to apply attributes
@ -145,65 +147,8 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
g_type_class_add_private (object_class, sizeof (GtkCellAreaPrivate));
}
/*************************************************************
* GObjectClass *
*************************************************************/
static void
gtk_cell_area_finalize (GObject *object)
{
GtkCellArea *area = GTK_CELL_AREA (object);
GtkCellAreaPrivate *priv = area->priv;
/* All cell renderers should already be removed at this point,
* just kill our hash table here.
*/
g_hash_table_destroy (priv->cell_info);
G_OBJECT_CLASS (gtk_cell_area_parent_class)->finalize (object);
}
static void
gtk_cell_area_dispose (GObject *object)
{
/* This removes every cell renderer that may be added to the GtkCellArea,
* subclasses should be breaking references to the GtkCellRenderers
* at this point.
*/
gtk_cell_layout_clear (GTK_CELL_LAYOUT (object));
G_OBJECT_CLASS (gtk_cell_area_parent_class)->dispose (object);
}
/*************************************************************
* GtkCellAreaClass *
*************************************************************/
static void
gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height)
{
/* If the area doesnt do height-for-width, fallback on base preferred height */
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_height, natural_height);
}
static void
gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
/* If the area doesnt do width-for-height, fallback on base preferred width */
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_width, natural_width);
}
/*************************************************************
* GtkCellLayoutIface *
* CellInfo Basics *
*************************************************************/
static CellInfo *
cell_info_new (GtkCellLayoutDataFunc func,
@ -264,6 +209,7 @@ cell_attribute_free (CellAttribute *attribute)
g_slice_free (CellAttribute, attribute);
}
/* GCompareFunc for g_slist_find_custom() */
static gint
cell_attribute_find (CellAttribute *cell_attribute,
const gchar *attribute)
@ -271,6 +217,65 @@ cell_attribute_find (CellAttribute *cell_attribute,
return g_strcmp0 (cell_attribute->attribute, attribute);
}
/*************************************************************
* GObjectClass *
*************************************************************/
static void
gtk_cell_area_finalize (GObject *object)
{
GtkCellArea *area = GTK_CELL_AREA (object);
GtkCellAreaPrivate *priv = area->priv;
/* All cell renderers should already be removed at this point,
* just kill our hash table here.
*/
g_hash_table_destroy (priv->cell_info);
G_OBJECT_CLASS (gtk_cell_area_parent_class)->finalize (object);
}
static void
gtk_cell_area_dispose (GObject *object)
{
/* This removes every cell renderer that may be added to the GtkCellArea,
* subclasses should be breaking references to the GtkCellRenderers
* at this point.
*/
gtk_cell_layout_clear (GTK_CELL_LAYOUT (object));
G_OBJECT_CLASS (gtk_cell_area_parent_class)->dispose (object);
}
/*************************************************************
* GtkCellAreaClass *
*************************************************************/
static void
gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height)
{
/* If the area doesnt do height-for-width, fallback on base preferred height */
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_height, natural_height);
}
static void
gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
/* If the area doesnt do width-for-height, fallback on base preferred width */
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_width, natural_width);
}
/*************************************************************
* GtkCellLayoutIface *
*************************************************************/
static void
gtk_cell_area_cell_layout_init (GtkCellLayoutIface *iface)
{

174
gtk/gtkcellareabox.c
View File

@ -22,6 +22,7 @@
*/
#include "gtkorientable.h"
#include "gtkcelllayout.h"
#include "gtkcellareabox.h"
/* GObjectClass */
@ -73,11 +74,37 @@ static void gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea
gint *minimum_width,
gint *natural_width);
/* GtkCellLayoutIface */
static void gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand);
/* CellInfo metadata handling */
typedef struct {
GtkCellRenderer *renderer;
guint expand : 1;
guint pack : 1;
} CellInfo;
static CellInfo *cell_info_new (GtkCellRenderer *renderer,
gboolean expand,
GtkPackType pack);
static void cell_info_free (CellInfo *info);
static gint cell_info_find (CellInfo *info,
GtkCellRenderer *renderer);
struct _GtkCellAreaBoxPrivate
{
GtkOrientation orientation;
GList *cells;
};
enum {
@ -86,9 +113,10 @@ enum {
};
G_DEFINE_TYPE_WITH_CODE (GtkCellAreaBox, gtk_cell_area_box, GTK_TYPE_CELL_AREA,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_cell_area_box_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
static void
gtk_cell_area_box_init (GtkCellAreaBox *box)
{
@ -100,6 +128,7 @@ gtk_cell_area_box_init (GtkCellAreaBox *box)
priv = box->priv;
priv->orientation = GTK_ORIENTATION_HORIZONTAL;
priv->cells = NULL;
}
static void
@ -134,6 +163,38 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
}
/*************************************************************
* CellInfo Basics *
*************************************************************/
static CellInfo *
cell_info_new (GtkCellRenderer *renderer,
gboolean expand,
GtkPackType pack)
{
CellInfo *info = g_slice_new (CellInfo);
info->renderer = g_object_ref_sink (renderer);
info->expand = expand;
info->pack = pack;
return info;
}
static void
cell_info_free (CellInfo *info)
{
g_object_unref (info->renderer);
g_slice_free (CellInfo, info);
}
static gint
cell_info_find (CellInfo *info,
GtkCellRenderer *renderer)
{
return (info->renderer == renderer) ? 0 : -1;
}
/*************************************************************
* GObjectClass *
*************************************************************/
@ -174,14 +235,31 @@ static void
gtk_cell_area_box_add (GtkCellArea *area,
GtkCellRenderer *renderer)
{
gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area),
renderer, FALSE);
}
static void
gtk_cell_area_box_remove (GtkCellArea *area,
GtkCellRenderer *renderer)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
GList *node;
node = g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find);
if (node)
{
CellInfo *info = node->data;
cell_info_free (info);
priv->cells = g_list_delete_link (priv->cells, node);
}
else
g_warning ("Trying to remove a cell renderer that is not present GtkCellAreaBox");
}
static void
@ -189,7 +267,16 @@ gtk_cell_area_box_forall (GtkCellArea *area,
GtkCellCallback callback,
gpointer callback_data)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
GList *list;
for (list = priv->cells; list; list = list->next)
{
CellInfo *info = list->data;
callback (info->renderer, callback_data);
}
}
static gint
@ -262,6 +349,89 @@ gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
}
/*************************************************************
* GtkCellLayoutIface *
*************************************************************/
static void
gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_cell_area_box_layout_pack_start;
iface->pack_end = gtk_cell_area_box_layout_pack_end;
}
static void
gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand)
{
gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (cell_layout), renderer, expand);
}
static void
gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand)
{
gtk_cell_area_box_pack_end (GTK_CELL_AREA_BOX (cell_layout), renderer, expand);
}
/*************************************************************
* API *
*************************************************************/
GtkCellArea *
gtk_cell_area_box_new (void)
{
return (GtkCellArea *)g_object_new (GTK_TYPE_CELL_AREA_BOX, NULL);
}
void
gtk_cell_area_box_pack_start (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellAreaBoxPrivate *priv;
CellInfo *info;
g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
priv = box->priv;
if (g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find))
{
g_warning ("Refusing to add the same cell renderer to a GtkCellAreaBox twice");
return;
}
info = cell_info_new (renderer, expand, GTK_PACK_START);
priv->cells = g_list_append (priv->cells, info);
}
void
gtk_cell_area_box_pack_end (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand)
{
GtkCellAreaBoxPrivate *priv;
CellInfo *info;
g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
priv = box->priv;
if (g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find))
{
g_warning ("Refusing to add the same cell renderer to a GtkCellArea twice");
return;
}
info = cell_info_new (renderer, expand, GTK_PACK_END);
priv->cells = g_list_append (priv->cells, info);
}

8
gtk/gtkcellareabox.h
View File

@ -64,7 +64,13 @@ struct _GtkCellAreaBoxClass
GType gtk_cell_area_box_get_type (void) G_GNUC_CONST;
GtkCellArea *gtk_cell_area_box_new (void);
void gtk_cell_area_box_pack_start (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand);
void gtk_cell_area_box_pack_end (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand);
G_END_DECLS