gimp/libgimpwidgets/gimpunitcombobox.c

189 lines
5.2 KiB
C

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1999 Peter Mattis and Spencer Kimball
*
* gimpunitcombobox.c
* Copyright (C) 2004, 2008 Sven Neumann <sven@gimp.org>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 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 Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "gimpwidgetstypes.h"
#include "gimpunitcombobox.h"
#include "gimpunitstore.h"
/**
* SECTION: gimpunitcombobox
* @title: GimpUnitComboBox
* @short_description: A #GtkComboBox to select a #GimpUnit.
* @see_also: #GimpUnit, #GimpUnitStore
*
* #GimpUnitComboBox allows to select units stored in a #GimpUnitStore.
* It replaces the deprecated #GimpUnitMenu.
**/
static void gimp_unit_combo_box_style_set (GtkWidget *widget,
GtkStyle *prev_style);
G_DEFINE_TYPE (GimpUnitComboBox, gimp_unit_combo_box, GTK_TYPE_COMBO_BOX)
#define parent_class gimp_unit_combo_box_parent_class
static void
gimp_unit_combo_box_class_init (GimpUnitComboBoxClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->style_set = gimp_unit_combo_box_style_set;
gtk_widget_class_install_style_property (widget_class,
g_param_spec_double ("label-scale",
NULL, NULL,
0.0,
G_MAXDOUBLE,
1.0,
GIMP_PARAM_READABLE));
}
static void
gimp_unit_combo_box_init (GimpUnitComboBox *combo)
{
GtkCellLayout *layout = GTK_CELL_LAYOUT (combo);
GtkCellRenderer *cell;
cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (layout, cell, TRUE);
gtk_cell_layout_set_attributes (layout, cell,
"text", GIMP_UNIT_STORE_UNIT_LONG_FORMAT,
NULL);
}
static void
gimp_unit_combo_box_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GtkCellLayout *layout;
GtkCellRenderer *cell;
gdouble scale;
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
gtk_widget_style_get (widget, "label-scale", &scale, NULL);
/* hackedehack ... */
layout = GTK_CELL_LAYOUT (gtk_bin_get_child (GTK_BIN (widget)));
gtk_cell_layout_clear (layout);
cell = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
"scale", scale,
NULL);
gtk_cell_layout_pack_start (layout, cell, TRUE);
gtk_cell_layout_set_attributes (layout, cell,
"text", GIMP_UNIT_STORE_UNIT_SHORT_FORMAT,
NULL);
}
/**
* gimp_unit_combo_box_new:
*
* Return value: a new #GimpUnitComboBox.
**/
GtkWidget *
gimp_unit_combo_box_new (void)
{
GtkWidget *combo_box;
GimpUnitStore *store;
store = gimp_unit_store_new (0);
combo_box = g_object_new (GIMP_TYPE_UNIT_COMBO_BOX,
"model", store,
NULL);
g_object_unref (store);
return combo_box;
}
/**
* gimp_unit_combo_box_new_with_model:
* @model: a GimpUnitStore
*
* Return value: a new #GimpUnitComboBox.
**/
GtkWidget *
gimp_unit_combo_box_new_with_model (GimpUnitStore *model)
{
return g_object_new (GIMP_TYPE_UNIT_COMBO_BOX,
"model", model,
NULL);
}
GimpUnit
gimp_unit_combo_box_get_active (GimpUnitComboBox *combo)
{
GtkTreeIter iter;
gint unit;
g_return_val_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo), -1);
gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter);
gtk_tree_model_get (gtk_combo_box_get_model (GTK_COMBO_BOX (combo)), &iter,
GIMP_UNIT_STORE_UNIT, &unit,
-1);
return (GimpUnit) unit;
}
void
gimp_unit_combo_box_set_active (GimpUnitComboBox *combo,
GimpUnit unit)
{
GtkTreeModel *model;
GtkTreeIter iter;
gboolean iter_valid;
g_return_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo));
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (model, &iter))
{
gint iter_unit;
gtk_tree_model_get (model, &iter,
GIMP_UNIT_STORE_UNIT, &iter_unit,
-1);
if (unit == (GimpUnit) iter_unit)
{
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo), &iter);
break;
}
}
}