forked from AuroraMiddleware/gtk
434 lines
12 KiB
C
434 lines
12 KiB
C
/* gtkcellareacontext.c
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*
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* Copyright (C) 2010 Openismus GmbH
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*
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* Authors:
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* Tristan Van Berkom <tristanvb@openismus.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gtkintl.h"
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#include "gtkmarshalers.h"
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#include "gtkcellareacontext.h"
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#include "gtkprivate.h"
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/* GObjectClass */
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static void gtk_cell_area_context_dispose (GObject *object);
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static void gtk_cell_area_context_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_area_context_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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/* GtkCellAreaContextClass */
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static void gtk_cell_area_context_real_reset (GtkCellAreaContext *context);
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static void gtk_cell_area_context_real_allocate (GtkCellAreaContext *context,
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gint width,
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gint height);
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struct _GtkCellAreaContextPrivate
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{
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GtkCellArea *cell_area;
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gint min_width;
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gint nat_width;
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gint min_height;
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gint nat_height;
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gint alloc_width;
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gint alloc_height;
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};
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enum {
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PROP_0,
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PROP_CELL_AREA,
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PROP_MIN_WIDTH,
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PROP_NAT_WIDTH,
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PROP_MIN_HEIGHT,
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PROP_NAT_HEIGHT
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};
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G_DEFINE_TYPE (GtkCellAreaContext, gtk_cell_area_context, G_TYPE_OBJECT);
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static void
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gtk_cell_area_context_init (GtkCellAreaContext *context)
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{
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GtkCellAreaContextPrivate *priv;
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context->priv = G_TYPE_INSTANCE_GET_PRIVATE (context,
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GTK_TYPE_CELL_AREA_CONTEXT,
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GtkCellAreaContextPrivate);
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priv = context->priv;
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priv->min_width = -1;
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priv->nat_width = -1;
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priv->min_height = -1;
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priv->nat_height = -1;
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}
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static void
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gtk_cell_area_context_class_init (GtkCellAreaContextClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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/* GObjectClass */
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object_class->dispose = gtk_cell_area_context_dispose;
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object_class->get_property = gtk_cell_area_context_get_property;
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object_class->set_property = gtk_cell_area_context_set_property;
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/* GtkCellAreaContextClass */
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class->reset = gtk_cell_area_context_real_reset;
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class->sum_preferred_width = NULL;
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class->sum_preferred_height = NULL;
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class->allocate = gtk_cell_area_context_real_allocate;
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g_object_class_install_property (object_class,
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PROP_CELL_AREA,
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g_param_spec_object ("area",
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P_("Area"),
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P_("The Cell Area this context was created for"),
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GTK_TYPE_CELL_AREA,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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g_object_class_install_property (object_class,
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PROP_MIN_WIDTH,
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g_param_spec_int ("minimum-width",
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P_("Minimum Width"),
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P_("Minimum cached width"),
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-1,
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G_MAXINT,
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-1,
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G_PARAM_READABLE));
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g_object_class_install_property (object_class,
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PROP_NAT_WIDTH,
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g_param_spec_int ("natural-width",
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P_("Minimum Width"),
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P_("Minimum cached width"),
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-1,
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G_MAXINT,
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-1,
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G_PARAM_READABLE));
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g_object_class_install_property (object_class,
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PROP_MIN_HEIGHT,
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g_param_spec_int ("minimum-height",
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P_("Minimum Height"),
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P_("Minimum cached height"),
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-1,
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G_MAXINT,
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-1,
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G_PARAM_READABLE));
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g_object_class_install_property (object_class,
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PROP_NAT_HEIGHT,
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g_param_spec_int ("natural-height",
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P_("Minimum Height"),
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P_("Minimum cached height"),
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-1,
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G_MAXINT,
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-1,
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G_PARAM_READABLE));
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g_type_class_add_private (object_class, sizeof (GtkCellAreaContextPrivate));
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}
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/*************************************************************
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* GObjectClass *
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*************************************************************/
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static void
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gtk_cell_area_context_dispose (GObject *object)
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{
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GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
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GtkCellAreaContextPrivate *priv = context->priv;
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if (priv->cell_area)
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{
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g_object_unref (priv->cell_area);
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priv->cell_area = NULL;
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}
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G_OBJECT_CLASS (gtk_cell_area_context_parent_class)->dispose (object);
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}
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static void
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gtk_cell_area_context_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
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GtkCellAreaContextPrivate *priv = context->priv;
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switch (prop_id)
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{
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case PROP_CELL_AREA:
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priv->cell_area = g_value_dup_object (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_cell_area_context_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkCellAreaContext *context = GTK_CELL_AREA_CONTEXT (object);
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GtkCellAreaContextPrivate *priv = context->priv;
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switch (prop_id)
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{
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case PROP_CELL_AREA:
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g_value_set_object (value, priv->cell_area);
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break;
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case PROP_MIN_WIDTH:
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g_value_set_int (value, priv->min_width);
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break;
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case PROP_NAT_WIDTH:
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g_value_set_int (value, priv->nat_width);
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break;
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case PROP_MIN_HEIGHT:
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g_value_set_int (value, priv->min_height);
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break;
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case PROP_NAT_HEIGHT:
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g_value_set_int (value, priv->nat_height);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/*************************************************************
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* GtkCellAreaContextClass *
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*************************************************************/
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static void
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gtk_cell_area_context_real_reset (GtkCellAreaContext *context)
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{
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GtkCellAreaContextPrivate *priv = context->priv;
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priv->min_width = -1;
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priv->nat_width = -1;
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priv->min_height = -1;
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priv->nat_height = -1;
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priv->alloc_width = 0;
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priv->alloc_height = 0;
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g_object_freeze_notify (G_OBJECT (context));
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g_object_notify (G_OBJECT (context), "minimum-width");
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g_object_notify (G_OBJECT (context), "natural-width");
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g_object_notify (G_OBJECT (context), "minimum-height");
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g_object_notify (G_OBJECT (context), "natural-height");
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g_object_thaw_notify (G_OBJECT (context));
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}
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static void
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gtk_cell_area_context_real_allocate (GtkCellAreaContext *context,
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gint width,
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gint height)
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{
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GtkCellAreaContextPrivate *priv = context->priv;
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priv->alloc_width = width;
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priv->alloc_height = height;
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}
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/*************************************************************
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* API *
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*************************************************************/
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GtkCellArea *
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gtk_cell_area_context_get_area (GtkCellAreaContext *context)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_val_if_fail (GTK_IS_CELL_AREA_CONTEXT (context), NULL);
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priv = context->priv;
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return priv->cell_area;
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}
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void
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gtk_cell_area_context_reset (GtkCellAreaContext *context)
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{
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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GTK_CELL_AREA_CONTEXT_GET_CLASS (context)->reset (context);
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}
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void
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gtk_cell_area_context_sum_preferred_width (GtkCellAreaContext *context)
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{
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GtkCellAreaContextClass *class;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
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if (class->sum_preferred_width)
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class->sum_preferred_width (context);
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}
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void
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gtk_cell_area_context_sum_preferred_height (GtkCellAreaContext *context)
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{
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GtkCellAreaContextClass *class;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
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if (class->sum_preferred_height)
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class->sum_preferred_height (context);
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}
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void
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gtk_cell_area_context_allocate (GtkCellAreaContext *context,
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gint width,
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gint height)
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{
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GtkCellAreaContextClass *class;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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class = GTK_CELL_AREA_CONTEXT_GET_CLASS (context);
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class->allocate (context, width, height);
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}
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void
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gtk_cell_area_context_get_preferred_width (GtkCellAreaContext *context,
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gint *minimum_width,
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gint *natural_width)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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priv = context->priv;
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if (minimum_width)
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*minimum_width = priv->min_width;
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if (natural_width)
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*natural_width = priv->nat_width;
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}
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void
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gtk_cell_area_context_get_preferred_height (GtkCellAreaContext *context,
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gint *minimum_height,
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gint *natural_height)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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priv = context->priv;
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if (minimum_height)
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*minimum_height = priv->min_height;
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if (natural_height)
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*natural_height = priv->nat_height;
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}
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void
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gtk_cell_area_context_get_allocation (GtkCellAreaContext *context,
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gint *width,
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gint *height)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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priv = context->priv;
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if (width)
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*width = priv->alloc_width;
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if (height)
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*height = priv->alloc_height;
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}
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void
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gtk_cell_area_context_push_preferred_width (GtkCellAreaContext *context,
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gint minimum_width,
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gint natural_width)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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priv = context->priv;
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g_object_freeze_notify (G_OBJECT (context));
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if (minimum_width > priv->min_width)
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{
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priv->min_width = minimum_width;
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g_object_notify (G_OBJECT (context), "minimum-width");
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}
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if (natural_width > priv->nat_width)
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{
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priv->nat_width = natural_width;
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g_object_notify (G_OBJECT (context), "natural-width");
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}
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g_object_thaw_notify (G_OBJECT (context));
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}
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void
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gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context,
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gint minimum_height,
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gint natural_height)
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{
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GtkCellAreaContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
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priv = context->priv;
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g_object_freeze_notify (G_OBJECT (context));
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if (minimum_height > priv->min_height)
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{
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priv->min_height = minimum_height;
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g_object_notify (G_OBJECT (context), "minimum-height");
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}
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if (natural_height > priv->nat_height)
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{
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priv->nat_height = natural_height;
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g_object_notify (G_OBJECT (context), "natural-height");
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}
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g_object_thaw_notify (G_OBJECT (context));
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}
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