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Added GtkCellAreaIter class

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Added base class to hold alignment and overall size request information
while itterating over the size requests of various rows of a GtkTreeModel,
updated GtkCellArea/GtkCellAreaBox classes accordingly.
This commit is contained in:
Tristan Van Berkom 2010-10-26 17:14:20 +09:00
parent 8679563247
commit b5e529f578
6 changed files with 789 additions and 9 deletions
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2
gtk/Makefile.am
View File

@ -170,6 +170,7 @@ gtk_public_h_sources = \
gtkcalendar.h \
gtkcellarea.h \
gtkcellareabox.h \
gtkcellareaiter.h \
gtkcelleditable.h \
gtkcelllayout.h \
gtkcellrenderer.h \
@ -434,6 +435,7 @@ gtk_base_c_sources = \
gtkcalendar.c \
gtkcellarea.c \
gtkcellareabox.c \
gtkcellareaiter.c \
gtkcelleditable.c \
gtkcelllayout.c \
gtkcellrenderer.c \

40
gtk/gtkcellarea.c
View File

@ -30,11 +30,13 @@ static void gtk_cell_area_finalize (GObject
/* GtkCellAreaClass */
static void gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
@ -138,6 +140,7 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
class->render = NULL;
/* geometry */
class->create_iter = NULL;
class->get_request_mode = NULL;
class->get_preferred_width = NULL;
class->get_preferred_height = NULL;
@ -253,24 +256,26 @@ gtk_cell_area_dispose (GObject *object)
*************************************************************/
static void
gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
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);
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, iter, widget, minimum_height, natural_height);
}
static void
gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
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);
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, iter, widget, minimum_width, natural_width);
}
/*************************************************************
@ -520,6 +525,25 @@ gtk_cell_area_render (GtkCellArea *area,
}
/* Geometry */
GtkCellAreaIter *
gtk_cell_area_create_iter (GtkCellArea *area)
{
GtkCellAreaClass *class;
g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL);
class = GTK_CELL_AREA_GET_CLASS (area);
if (class->create_iter)
return class->create_iter (area);
g_warning ("GtkCellAreaClass::create_iter not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return NULL;
}
GtkSizeRequestMode
gtk_cell_area_get_request_mode (GtkCellArea *area)
{
@ -541,6 +565,7 @@ gtk_cell_area_get_request_mode (GtkCellArea *area)
void
gtk_cell_area_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
@ -553,7 +578,7 @@ gtk_cell_area_get_preferred_width (GtkCellArea *area,
class = GTK_CELL_AREA_GET_CLASS (area);
if (class->get_preferred_width)
class->get_preferred_width (area, widget, minimum_size, natural_size);
class->get_preferred_width (area, iter, widget, minimum_size, natural_size);
else
g_warning ("GtkCellAreaClass::get_preferred_width not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
@ -561,6 +586,7 @@ gtk_cell_area_get_preferred_width (GtkCellArea *area,
void
gtk_cell_area_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
@ -572,11 +598,12 @@ gtk_cell_area_get_preferred_height_for_width (GtkCellArea *area,
g_return_if_fail (GTK_IS_WIDGET (widget));
class = GTK_CELL_AREA_GET_CLASS (area);
class->get_preferred_height_for_width (area, widget, width, minimum_height, natural_height);
class->get_preferred_height_for_width (area, iter, widget, width, minimum_height, natural_height);
}
void
gtk_cell_area_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
@ -589,7 +616,7 @@ gtk_cell_area_get_preferred_height (GtkCellArea *area,
class = GTK_CELL_AREA_GET_CLASS (area);
if (class->get_preferred_height)
class->get_preferred_height (area, widget, minimum_size, natural_size);
class->get_preferred_height (area, iter, widget, minimum_size, natural_size);
else
g_warning ("GtkCellAreaClass::get_preferred_height not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
@ -597,6 +624,7 @@ gtk_cell_area_get_preferred_height (GtkCellArea *area,
void
gtk_cell_area_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
@ -608,7 +636,7 @@ gtk_cell_area_get_preferred_width_for_height (GtkCellArea *area,
g_return_if_fail (GTK_IS_WIDGET (widget));
class = GTK_CELL_AREA_GET_CLASS (area);
class->get_preferred_width_for_height (area, widget, height, minimum_width, natural_width);
class->get_preferred_width_for_height (area, iter, widget, height, minimum_width, natural_width);
}
void

11
gtk/gtkcellarea.h
View File

@ -31,6 +31,7 @@
#include <gtk/gtkcellrenderer.h>
#include <gtk/gtkwidget.h>
#include <gtk/gtktreemodel.h>
#include <gtk/gtkcellareaiter.h>
G_BEGIN_DECLS
@ -88,21 +89,26 @@ struct _GtkCellAreaClass
const GdkRectangle *cell_area);
/* Geometry */
GtkCellAreaIter *(* create_iter) (GtkCellArea *area);
GtkSizeRequestMode (* get_request_mode) (GtkCellArea *area);
void (* get_preferred_width) (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
void (* get_preferred_height_for_width) (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
void (* get_preferred_height) (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
void (* get_preferred_width_for_height) (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
@ -140,21 +146,26 @@ void gtk_cell_area_render (GtkCellArea
const GdkRectangle *cell_area);
/* Geometry */
GtkCellAreaIter *gtk_cell_area_create_iter (GtkCellArea *area);
GtkSizeRequestMode gtk_cell_area_get_request_mode (GtkCellArea *area);
void gtk_cell_area_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
void gtk_cell_area_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
void gtk_cell_area_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
void gtk_cell_area_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,

21
gtk/gtkcellareabox.c
View File

@ -1,4 +1,4 @@
/* gtkcellarea.c
/* gtkcellareabox.c
*
* Copyright (C) 2010 Openismus GmbH
*
@ -54,21 +54,26 @@ static void gtk_cell_area_box_render (GtkCellArea
GtkWidget *widget,
const GdkRectangle *cell_area);
static GtkSizeRequestMode gtk_cell_area_box_get_request_mode (GtkCellArea *area);
static GtkCellAreaIter *gtk_cell_area_box_create_iter (GtkCellArea *area);
static GtkSizeRequestMode gtk_cell_area_box_get_request_mode (GtkCellArea *area);
static void gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
@ -153,6 +158,7 @@ gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
area_class->event = gtk_cell_area_box_event;
area_class->render = gtk_cell_area_box_render;
area_class->create_iter = gtk_cell_area_box_create_iter;
area_class->get_request_mode = gtk_cell_area_box_get_request_mode;
area_class->get_preferred_width = gtk_cell_area_box_get_preferred_width;
area_class->get_preferred_height = gtk_cell_area_box_get_preferred_height;
@ -302,6 +308,12 @@ gtk_cell_area_box_render (GtkCellArea *area,
}
static GtkCellAreaIter *
gtk_cell_area_box_create_iter (GtkCellArea *area)
{
return NULL;
}
static GtkSizeRequestMode
gtk_cell_area_box_get_request_mode (GtkCellArea *area)
{
@ -315,6 +327,7 @@ gtk_cell_area_box_get_request_mode (GtkCellArea *area)
static void
gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
@ -324,6 +337,7 @@ gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
static void
gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
@ -334,6 +348,7 @@ gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
static void
gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
@ -344,6 +359,7 @@ gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
static void
gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
@ -353,7 +369,6 @@ gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
}
/*************************************************************
* GtkCellLayoutIface *
*************************************************************/

607
gtk/gtkcellareaiter.c Normal file
View File

@ -0,0 +1,607 @@
/* gtkcellareaiter.c
*
* Copyright (C) 2010 Openismus GmbH
*
* Authors:
* Tristan Van Berkom <tristanvb@openismus.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 "config.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkorientable.h"
#include "gtkcelllayout.h"
#include "gtkcellareaiter.h"
/* GObjectClass */
static void gtk_cell_area_iter_finalize (GObject *object);
static void gtk_cell_area_iter_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* GtkCellAreaIterClass */
static void gtk_cell_area_iter_real_flush_preferred_width (GtkCellAreaIter *iter);
static void gtk_cell_area_iter_real_flush_preferred_height_for_width (GtkCellAreaIter *iter,
gint width);
static void gtk_cell_area_iter_real_flush_preferred_height (GtkCellAreaIter *iter);
static void gtk_cell_area_iter_real_flush_preferred_width_for_height (GtkCellAreaIter *iter,
gint height);
/* CachedSize management */
typedef struct {
gint min_size;
gint nat_size;
} CachedSize;
static CachedSize *cached_size_new (gint min_size, gint nat_size);
static void cached_size_free (CachedSize *size);
struct _GtkCellAreaIterPrivate
{
gint min_width;
gint nat_width;
gint min_height;
gint nat_height;
GHashTable *widths;
GHashTable *heights;
};
enum {
PROP_0,
PROP_MIN_WIDTH,
PROP_NAT_WIDTH,
PROP_MIN_HEIGHT,
PROP_NAT_HEIGHT
};
enum {
SIGNAL_WIDTH_CHANGED,
SIGNAL_HEIGHT_CHANGED,
LAST_SIGNAL
};
static guint cell_area_iter_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (GtkCellAreaIter, gtk_cell_area_iter, G_TYPE_OBJECT);
static void
gtk_cell_area_iter_init (GtkCellAreaIter *iter)
{
GtkCellAreaIterPrivate *priv;
iter->priv = G_TYPE_INSTANCE_GET_PRIVATE (iter,
GTK_TYPE_CELL_AREA_ITER,
GtkCellAreaIterPrivate);
priv = iter->priv;
priv->min_width = -1;
priv->nat_width = -1;
priv->min_height = -1;
priv->nat_height = -1;
priv->widths = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, (GDestroyNotify)cached_size_free);
priv->heights = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, (GDestroyNotify)cached_size_free);
}
static void
gtk_cell_area_iter_class_init (GtkCellAreaIterClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
/* GObjectClass */
object_class->finalize = gtk_cell_area_iter_finalize;
object_class->get_property = gtk_cell_area_iter_get_property;
class->flush_preferred_width = gtk_cell_area_iter_real_flush_preferred_width;
class->flush_preferred_height_for_width = gtk_cell_area_iter_real_flush_preferred_height_for_width;
class->flush_preferred_height = gtk_cell_area_iter_real_flush_preferred_height;
class->flush_preferred_width_for_height = gtk_cell_area_iter_real_flush_preferred_width_for_height;
cell_area_iter_signals[SIGNAL_HEIGHT_CHANGED] =
g_signal_new (I_("height-changed"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, /* Class offset (just a notification, no class handler) */
NULL, NULL,
_gtk_marshal_VOID__INT_INT_INT,
G_TYPE_NONE, 3,
G_TYPE_INT, G_TYPE_INT, G_TYPE_INT);
cell_area_iter_signals[SIGNAL_WIDTH_CHANGED] =
g_signal_new (I_("width-changed"),
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, /* Class offset (just a notification, no class handler) */
NULL, NULL,
_gtk_marshal_VOID__INT_INT_INT,
G_TYPE_NONE, 3,
G_TYPE_INT, G_TYPE_INT, G_TYPE_INT);
g_object_class_install_property (object_class,
PROP_MIN_WIDTH,
g_param_spec_int ("minimum-width",
P_("Minimum Width"),
P_("Minimum cached width"),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE));
g_object_class_install_property (object_class,
PROP_NAT_WIDTH,
g_param_spec_int ("natural-width",
P_("Minimum Width"),
P_("Minimum cached width"),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE));
g_object_class_install_property (object_class,
PROP_MIN_HEIGHT,
g_param_spec_int ("minimum-height",
P_("Minimum Height"),
P_("Minimum cached height"),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE));
g_object_class_install_property (object_class,
PROP_NAT_HEIGHT,
g_param_spec_int ("natural-height",
P_("Minimum Height"),
P_("Minimum cached height"),
-1,
G_MAXINT,
-1,
G_PARAM_READABLE));
g_type_class_add_private (object_class, sizeof (GtkCellAreaIterPrivate));
}
/*************************************************************
* Cached Sizes *
*************************************************************/
static CachedSize *
cached_size_new (gint min_size,
gint nat_size)
{
CachedSize *size = g_slice_new (CachedSize);
size->min_size = min_size;
size->nat_size = nat_size;
return size;
}
static void
cached_size_free (CachedSize *size)
{
g_slice_free (CachedSize, size);
}
/*************************************************************
* GObjectClass *
*************************************************************/
static void
gtk_cell_area_iter_finalize (GObject *object)
{
GtkCellAreaIter *iter = GTK_CELL_AREA_ITER (object);
GtkCellAreaIterPrivate *priv = iter->priv;
g_hash_table_destroy (priv->widths);
g_hash_table_destroy (priv->heights);
G_OBJECT_CLASS (gtk_cell_area_iter_parent_class)->finalize (object);
}
static void
gtk_cell_area_iter_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellAreaIter *iter = GTK_CELL_AREA_ITER (object);
GtkCellAreaIterPrivate *priv = iter->priv;
switch (prop_id)
{
case PROP_MIN_WIDTH:
g_value_set_int (value, priv->min_width);
break;
case PROP_NAT_WIDTH:
g_value_set_int (value, priv->nat_width);
break;
case PROP_MIN_HEIGHT:
g_value_set_int (value, priv->min_height);
break;
case PROP_NAT_HEIGHT:
g_value_set_int (value, priv->nat_height);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*************************************************************
* GtkCellAreaIterClass *
*************************************************************/
static void
gtk_cell_area_iter_real_flush_preferred_width (GtkCellAreaIter *iter)
{
GtkCellAreaIterPrivate *priv = iter->priv;
priv->min_width = -1;
priv->nat_width = -1;
g_object_freeze_notify (G_OBJECT (iter));
g_object_notify (G_OBJECT (iter), "minimum-width");
g_object_notify (G_OBJECT (iter), "natural-width");
g_object_thaw_notify (G_OBJECT (iter));
}
static void
gtk_cell_area_iter_real_flush_preferred_height_for_width (GtkCellAreaIter *iter,
gint width)
{
GtkCellAreaIterPrivate *priv = iter->priv;
/* Flush all sizes for special -1 value */
if (width < 0)
g_hash_table_remove_all (priv->heights);
else
g_hash_table_remove (priv->heights, GINT_TO_POINTER (width));
/* XXX Should we bother signalling removed values as "size-changed" signals ? */
}
static void
gtk_cell_area_iter_real_flush_preferred_height (GtkCellAreaIter *iter)
{
GtkCellAreaIterPrivate *priv = iter->priv;
priv->min_height = -1;
priv->nat_height = -1;
g_object_freeze_notify (G_OBJECT (iter));
g_object_notify (G_OBJECT (iter), "minimum-height");
g_object_notify (G_OBJECT (iter), "natural-height");
g_object_thaw_notify (G_OBJECT (iter));
}
static void
gtk_cell_area_iter_real_flush_preferred_width_for_height (GtkCellAreaIter *iter,
gint height)
{
GtkCellAreaIterPrivate *priv = iter->priv;
/* Flush all sizes for special -1 value */
if (height < 0)
g_hash_table_remove_all (priv->widths);
else
g_hash_table_remove (priv->widths, GINT_TO_POINTER (height));
/* XXX Should we bother signalling removed values as "size-changed" signals ? */
}
/*************************************************************
* API *
*************************************************************/
void
gtk_cell_area_iter_get_preferred_width (GtkCellAreaIter *iter,
gint *minimum_width,
gint *natural_width)
{
GtkCellAreaIterPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
if (minimum_width)
*minimum_width = priv->min_width;
if (natural_width)
*natural_width = priv->nat_width;
}
void
gtk_cell_area_iter_get_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width,
gint *minimum_height,
gint *natural_height)
{
GtkCellAreaIterPrivate *priv;
CachedSize *size;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
size = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
if (size)
{
if (minimum_height)
*minimum_height = size->min_size;
if (natural_height)
*natural_height = size->nat_size;
}
else
{
if (minimum_height)
*minimum_height = -1;
if (natural_height)
*natural_height = -1;
}
}
void
gtk_cell_area_iter_get_preferred_height (GtkCellAreaIter *iter,
gint *minimum_height,
gint *natural_height)
{
GtkCellAreaIterPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
if (minimum_height)
*minimum_height = priv->min_height;
if (natural_height)
*natural_height = priv->nat_height;
}
void
gtk_cell_area_iter_get_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height,
gint *minimum_width,
gint *natural_width)
{
GtkCellAreaIterPrivate *priv;
CachedSize *size;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
size = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
if (size)
{
if (minimum_width)
*minimum_width = size->min_size;
if (natural_width)
*natural_width = size->nat_size;
}
else
{
if (minimum_width)
*minimum_width = -1;
if (natural_width)
*natural_width = -1;
}
}
void
gtk_cell_area_iter_push_preferred_width (GtkCellAreaIter *iter,
gint minimum_width,
gint natural_width)
{
GtkCellAreaIterPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
g_object_freeze_notify (G_OBJECT (iter));
if (minimum_width > priv->min_width)
{
priv->min_width = minimum_width;
g_object_notify (G_OBJECT (iter), "minimum-width");
}
if (natural_width > priv->nat_width)
{
priv->nat_width = natural_width;
g_object_notify (G_OBJECT (iter), "natural-width");
}
g_object_thaw_notify (G_OBJECT (iter));
}
void
gtk_cell_area_iter_push_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width,
gint minimum_height,
gint natural_height)
{
GtkCellAreaIterPrivate *priv;
CachedSize *size;
gboolean changed = FALSE;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
size = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
if (!size)
{
size = cached_size_new (minimum_height, natural_height);
g_hash_table_insert (priv->heights, GINT_TO_POINTER (for_width), size);
changed = TRUE;
}
else
{
if (minimum_height > size->min_size)
{
size->min_size = minimum_height;
changed = TRUE;
}
if (natural_height > size->nat_size)
{
size->nat_size = natural_height;
changed = TRUE;
}
}
if (changed)
g_signal_emit (iter, cell_area_iter_signals[SIGNAL_HEIGHT_CHANGED], 0,
for_width, size->min_size, size->nat_size);
}
void
gtk_cell_area_iter_push_preferred_height (GtkCellAreaIter *iter,
gint minimum_height,
gint natural_height)
{
GtkCellAreaIterPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
g_object_freeze_notify (G_OBJECT (iter));
if (minimum_height > priv->min_height)
{
priv->min_height = minimum_height;
g_object_notify (G_OBJECT (iter), "minimum-height");
}
if (natural_height > priv->nat_height)
{
priv->nat_height = natural_height;
g_object_notify (G_OBJECT (iter), "natural-height");
}
g_object_thaw_notify (G_OBJECT (iter));
}
void
gtk_cell_area_iter_push_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height,
gint minimum_width,
gint natural_width)
{
GtkCellAreaIterPrivate *priv;
CachedSize *size;
gboolean changed = FALSE;
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
priv = iter->priv;
size = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
if (!size)
{
size = cached_size_new (minimum_width, natural_width);
g_hash_table_insert (priv->widths, GINT_TO_POINTER (for_height), size);
changed = TRUE;
}
else
{
if (minimum_width > size->min_size)
{
size->min_size = minimum_width;
changed = TRUE;
}
if (natural_width > size->nat_size)
{
size->nat_size = natural_width;
changed = TRUE;
}
}
if (changed)
g_signal_emit (iter, cell_area_iter_signals[SIGNAL_WIDTH_CHANGED], 0,
for_height, size->min_size, size->nat_size);
}
void
gtk_cell_area_iter_flush (GtkCellAreaIter *iter)
{
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
gtk_cell_area_iter_flush_preferred_width (iter);
gtk_cell_area_iter_flush_preferred_height_for_width (iter, -1);
gtk_cell_area_iter_flush_preferred_height (iter);
gtk_cell_area_iter_flush_preferred_width_for_height (iter, -1);
}
void
gtk_cell_area_iter_flush_preferred_width (GtkCellAreaIter *iter)
{
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
GTK_CELL_AREA_ITER_GET_CLASS (iter)->flush_preferred_width (iter);
}
void
gtk_cell_area_iter_flush_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width)
{
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
GTK_CELL_AREA_ITER_GET_CLASS (iter)->flush_preferred_height_for_width (iter, for_width);
}
void
gtk_cell_area_iter_flush_preferred_height (GtkCellAreaIter *iter)
{
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
GTK_CELL_AREA_ITER_GET_CLASS (iter)->flush_preferred_height (iter);
}
void
gtk_cell_area_iter_flush_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height)
{
g_return_if_fail (GTK_IS_CELL_AREA_ITER (iter));
GTK_CELL_AREA_ITER_GET_CLASS (iter)->flush_preferred_width_for_height (iter, for_height);
}

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/* gtkcellareaiter.h
*
* Copyright (C) 2010 Openismus GmbH
*
* Authors:
* Tristan Van Berkom <tristanvb@openismus.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.
*/
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#ifndef __GTK_CELL_AREA_ITER_H__
#define __GTK_CELL_AREA_ITER_H__
#include <glib-object.h>
G_BEGIN_DECLS
#define GTK_TYPE_CELL_AREA_ITER (gtk_cell_area_iter_get_type ())
#define GTK_CELL_AREA_ITER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA_ITER, GtkCellAreaIter))
#define GTK_CELL_AREA_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA_ITER, GtkCellAreaIterClass))
#define GTK_IS_CELL_AREA_ITER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA_ITER))
#define GTK_IS_CELL_AREA_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA_ITER))
#define GTK_CELL_AREA_ITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA_ITER, GtkCellAreaIterClass))
typedef struct _GtkCellAreaIter GtkCellAreaIter;
typedef struct _GtkCellAreaIterPrivate GtkCellAreaIterPrivate;
typedef struct _GtkCellAreaIterClass GtkCellAreaIterClass;
struct _GtkCellAreaIter
{
GObject parent_instance;
GtkCellAreaIterPrivate *priv;
};
struct _GtkCellAreaIterClass
{
GObjectClass parent_class;
/* Subclasses can use this to flush their alignments */
void (* flush_preferred_width) (GtkCellAreaIter *iter);
void (* flush_preferred_height_for_width) (GtkCellAreaIter *iter,
gint width);
void (* flush_preferred_height) (GtkCellAreaIter *iter);
void (* flush_preferred_width_for_height) (GtkCellAreaIter *iter,
gint height);
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
};
GType gtk_cell_area_iter_get_type (void) G_GNUC_CONST;
/* Apis for GtkCellArea clients to consult cached values for multiple GtkTreeModel rows */
void gtk_cell_area_iter_get_preferred_width (GtkCellAreaIter *iter,
gint *minimum_width,
gint *natural_width);
void gtk_cell_area_iter_get_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width,
gint *minimum_height,
gint *natural_height);
void gtk_cell_area_iter_get_preferred_height (GtkCellAreaIter *iter,
gint *minimum_height,
gint *natural_height);
void gtk_cell_area_iter_get_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height,
gint *minimum_width,
gint *natural_width);
/* Apis for GtkCellArea implementations to update cached values for multiple GtkTreeModel rows */
void gtk_cell_area_iter_push_preferred_width (GtkCellAreaIter *iter,
gint minimum_width,
gint natural_width);
void gtk_cell_area_iter_push_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width,
gint minimum_height,
gint natural_height);
void gtk_cell_area_iter_push_preferred_height (GtkCellAreaIter *iter,
gint minimum_height,
gint natural_height);
void gtk_cell_area_iter_push_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height,
gint minimum_width,
gint natural_width);
/* Apis for GtkCellArea clients to flush the cache */
void gtk_cell_area_iter_flush (GtkCellAreaIter *iter);
void gtk_cell_area_iter_flush_preferred_width (GtkCellAreaIter *iter);
void gtk_cell_area_iter_flush_preferred_height_for_width (GtkCellAreaIter *iter,
gint for_width);
void gtk_cell_area_iter_flush_preferred_height (GtkCellAreaIter *iter);
void gtk_cell_area_iter_flush_preferred_width_for_height (GtkCellAreaIter *iter,
gint for_height);
G_END_DECLS
#endif /* __GTK_CELL_AREA_ITER_H__ */