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gtk2/gtk/gtkcellareacontext.c
Tristan Van Berkom 5f7787ab2e Removed tons of api that we dont absolutely need in GtkCellAreaContext: 
- gtk_cell_area_context_get_height_for_width()
  - gtk_cell_area_context_get_width_for_height()
  - gtk_cell_area_context_push_height_for_width()
  - gtk_cell_area_context_push_width_for_height()
  - gtk_cell_area_context_flush_height_for_width()
  - gtk_cell_area_context_flush_width_for_height()
  - Contextual size changed signal

All of these are not really important for the CellArea to operate
and not of any real consequential value to the user (the user can
accumulate the returned values from height-for-width requests
and do as they please with it).
2010-11-25 16:36:46 +09:00

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/* gtkcellareacontext.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 "gtkcellareacontext.h"
#include "gtkprivate.h"
/* GObjectClass */
static void gtk_cell_area_context_dispose (GObject *object);
static void gtk_cell_area_context_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_cell_area_context_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
/* GtkCellAreaContextClass */
static void gtk_cell_area_context_real_flush_preferred_width (GtkCellAreaContext *context);
static void gtk_cell_area_context_real_flush_preferred_height (GtkCellAreaContext *context);
static void gtk_cell_area_context_real_flush_allocation (GtkCellAreaContext *context);
static void gtk_cell_area_context_real_allocate_width (GtkCellAreaContext *context,
gint width);
static void gtk_cell_area_context_real_allocate_height (GtkCellAreaContext *context,
gint height);
struct _GtkCellAreaContextPrivate
{
GtkCellArea *cell_area;
gint min_width;
gint nat_width;
gint min_height;
gint nat_height;
gint alloc_width;
gint alloc_height;
};
enum {
PROP_0,
PROP_CELL_AREA,
PROP_MIN_WIDTH,
PROP_NAT_WIDTH,
PROP_MIN_HEIGHT,
PROP_NAT_HEIGHT
};
G_DEFINE_TYPE (GtkCellAreaContext, gtk_cell_area_context, G_TYPE_OBJECT);
static void
gtk_cell_area_context_init (GtkCellAreaContext *context)
{
GtkCellAreaContextPrivate *priv;
context->priv = G_TYPE_INSTANCE_GET_PRIVATE (context,
GTK_TYPE_CELL_AREA_CONTEXT,
GtkCellAreaContextPrivate);
priv = context->priv;
priv->min_width = -1;
priv->nat_width = -1;
priv->min_height = -1;
priv->nat_height = -1;
}
static void
gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
/* GObjectClass */
object_class->dispose = gtk_cell_area_context_dispose;
object_class->get_property = gtk_cell_area_context_get_property;
object_class->set_property = gtk_cell_area_context_set_property;
/* GtkCellAreaContextClass */
class->flush_preferred_width = gtk_cell_area_context_real_flush_preferred_width;
class->flush_preferred_height = gtk_cell_area_context_real_flush_preferred_height;
class->flush_allocation = gtk_cell_area_context_real_flush_allocation;
class->sum_preferred_width = NULL;
class->sum_preferred_height = NULL;
class->allocate_width = gtk_cell_area_context_real_allocate_width;
class->allocate_height = gtk_cell_area_context_real_allocate_height;
g_object_class_install_property (object_class,
PROP_CELL_AREA,
g_param_spec_object ("area",
P_("Area"),
P_("The Cell Area this context was created for"),
GTK_TYPE_CELL_AREA,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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 (GtkCellAreaContextPrivate));
}
/*************************************************************
* GObjectClass *
*************************************************************/
static void
gtk_cell_area_context_dispose (GObject *object)
{
GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
GtkCellAreaContextPrivate *priv = context->priv;
if (priv->cell_area)
{
g_object_unref (priv->cell_area);
priv->cell_area = NULL;
}
G_OBJECT_CLASS (gtk_cell_area_context_parent_class)->dispose (object);
}
static void
gtk_cell_area_context_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
GtkCellAreaContextPrivate *priv = context->priv;
switch (prop_id)
{
case PROP_CELL_AREA:
priv->cell_area = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_cell_area_context_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
GtkCellAreaContextPrivate *priv = context->priv;
switch (prop_id)
{
case PROP_CELL_AREA:
g_value_set_object (value, priv->cell_area);
break;
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;
}
}
/*************************************************************
* GtkCellAreaContextClass *
*************************************************************/
static void
gtk_cell_area_context_real_flush_preferred_width (GtkCellAreaContext *context)
{
GtkCellAreaContextPrivate *priv = context->priv;
priv->min_width = -1;
priv->nat_width = -1;
g_object_freeze_notify (G_OBJECT (context));
g_object_notify (G_OBJECT (context), "minimum-width");
g_object_notify (G_OBJECT (context), "natural-width");
g_object_thaw_notify (G_OBJECT (context));
}
static void
gtk_cell_area_context_real_flush_preferred_height (GtkCellAreaContext *context)
{
GtkCellAreaContextPrivate *priv = context->priv;
priv->min_height = -1;
priv->nat_height = -1;
g_object_freeze_notify (G_OBJECT (context));
g_object_notify (G_OBJECT (context), "minimum-height");
g_object_notify (G_OBJECT (context), "natural-height");
g_object_thaw_notify (G_OBJECT (context));
}
static void
gtk_cell_area_context_real_flush_allocation (GtkCellAreaContext *context)
{
GtkCellAreaContextPrivate *priv = context->priv;
priv->alloc_width = 0;
priv->alloc_height = 0;
}
static void
gtk_cell_area_context_real_allocate_width (GtkCellAreaContext *context,
gint width)
{
GtkCellAreaContextPrivate *priv = context->priv;
priv->alloc_width = width;
}
static void
gtk_cell_area_context_real_allocate_height (GtkCellAreaContext *context,
gint height)
{
GtkCellAreaContextPrivate *priv = context->priv;
priv->alloc_height = height;
}
/*************************************************************
* API *
*************************************************************/
GtkCellArea *
gtk_cell_area_context_get_area (GtkCellAreaContext *context)
{
GtkCellAreaContextPrivate *priv;
g_return_val_if_fail (GTK_IS_CELL_AREA_CONTEXT (context), NULL);
priv = context->priv;
return priv->cell_area;
}
void
gtk_cell_area_context_flush (GtkCellAreaContext *context)
{
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
gtk_cell_area_context_flush_preferred_width (context);
gtk_cell_area_context_flush_preferred_height (context);
gtk_cell_area_context_flush_allocation (context);
}
void
gtk_cell_area_context_flush_preferred_width (GtkCellAreaContext *context)
{
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
GTK_CELL_AREA_CONTEXT_GET_CLASS (context)->flush_preferred_width (context);
}
void
gtk_cell_area_context_flush_preferred_height (GtkCellAreaContext *context)
{
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
GTK_CELL_AREA_CONTEXT_GET_CLASS (context)->flush_preferred_height (context);
}
void
gtk_cell_area_context_flush_allocation (GtkCellAreaContext *context)
{
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
GTK_CELL_AREA_CONTEXT_GET_CLASS (context)->flush_allocation (context);
}
void
gtk_cell_area_context_sum_preferred_width (GtkCellAreaContext *context)
{
GtkCellAreaContextClass *class;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
if (class->sum_preferred_width)
class->sum_preferred_width (context);
}
void
gtk_cell_area_context_sum_preferred_height (GtkCellAreaContext *context)
{
GtkCellAreaContextClass *class;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
if (class->sum_preferred_height)
class->sum_preferred_height (context);
}
void
gtk_cell_area_context_allocate_width (GtkCellAreaContext *context,
gint width)
{
GtkCellAreaContextClass *class;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
class->allocate_width (context, width);
}
void
gtk_cell_area_context_allocate_height (GtkCellAreaContext *context,
gint height)
{
GtkCellAreaContextClass *class;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
class->allocate_height (context, height);
}
void
gtk_cell_area_context_get_preferred_width (GtkCellAreaContext *context,
gint *minimum_width,
gint *natural_width)
{
GtkCellAreaContextPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
priv = context->priv;
if (minimum_width)
*minimum_width = priv->min_width;
if (natural_width)
*natural_width = priv->nat_width;
}
void
gtk_cell_area_context_get_preferred_height (GtkCellAreaContext *context,
gint *minimum_height,
gint *natural_height)
{
GtkCellAreaContextPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
priv = context->priv;
if (minimum_height)
*minimum_height = priv->min_height;
if (natural_height)
*natural_height = priv->nat_height;
}
void
gtk_cell_area_context_get_allocation (GtkCellAreaContext *context,
gint *width,
gint *height)
{
GtkCellAreaContextPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
priv = context->priv;
if (width)
*width = priv->alloc_width;
if (height)
*height = priv->alloc_height;
}
void
gtk_cell_area_context_push_preferred_width (GtkCellAreaContext *context,
gint minimum_width,
gint natural_width)
{
GtkCellAreaContextPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
priv = context->priv;
g_object_freeze_notify (G_OBJECT (context));
if (minimum_width > priv->min_width)
{
priv->min_width = minimum_width;
g_object_notify (G_OBJECT (context), "minimum-width");
}
if (natural_width > priv->nat_width)
{
priv->nat_width = natural_width;
g_object_notify (G_OBJECT (context), "natural-width");
}
g_object_thaw_notify (G_OBJECT (context));
}
void
gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context,
gint minimum_height,
gint natural_height)
{
GtkCellAreaContextPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
priv = context->priv;
g_object_freeze_notify (G_OBJECT (context));
if (minimum_height > priv->min_height)
{
priv->min_height = minimum_height;
g_object_notify (G_OBJECT (context), "minimum-height");
}
if (natural_height > priv->nat_height)
{
priv->nat_height = natural_height;
g_object_notify (G_OBJECT (context), "natural-height");
}
g_object_thaw_notify (G_OBJECT (context));
}
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