gimpunitcombobox.c 5.23 KB
Newer Older
1 2
/* LIBGIMP - The GIMP Library
 * Copyright (C) 1995-1999 Peter Mattis and Spencer Kimball
3 4
 *
 * gimpunitcombobox.c
5
 * Copyright (C) 2004, 2008  Sven Neumann <sven@gimp.org>
6
 *
7 8 9 10
 * 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.
11
 *
12
 * This library is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
16
 *
17 18 19
 * 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/>.
20 21 22 23 24 25
 */

#include "config.h"

#include <gtk/gtk.h>

26
#include "gimpwidgetstypes.h"
27 28 29 30 31

#include "gimpunitcombobox.h"
#include "gimpunitstore.h"


32 33 34 35 36 37
/**
 * SECTION: gimpunitcombobox
 * @title: GimpUnitComboBox
 * @short_description: A #GtkComboBox to select a #GimpUnit.
 * @see_also: #GimpUnit, #GimpUnitStore
 *
38
 * #GimpUnitComboBox selects units stored in a #GimpUnitStore.
39 40 41 42
 * It replaces the deprecated #GimpUnitMenu.
 **/


43 44 45 46
static void  gimp_unit_combo_box_style_set (GtkWidget *widget,
                                            GtkStyle  *prev_style);


47
G_DEFINE_TYPE (GimpUnitComboBox, gimp_unit_combo_box, GTK_TYPE_COMBO_BOX)
48

49
#define parent_class gimp_unit_combo_box_parent_class
50 51


52 53 54
static void
gimp_unit_combo_box_class_init (GimpUnitComboBoxClass *klass)
{
55 56 57 58 59 60 61 62 63 64 65
  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));
66 67 68 69 70 71 72 73 74 75 76
}

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,
77
                                  "text", GIMP_UNIT_STORE_UNIT_LONG_FORMAT,
78
                                  NULL);
79 80 81 82 83 84 85 86 87 88 89 90 91
}

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);
92 93

  /*  hackedehack ...  */
94
  layout = GTK_CELL_LAYOUT (gtk_bin_get_child (GTK_BIN (widget)));
95 96
  gtk_cell_layout_clear (layout);

97 98 99
  cell = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
                       "scale", scale,
                       NULL);
100 101
  gtk_cell_layout_pack_start (layout, cell, TRUE);
  gtk_cell_layout_set_attributes (layout, cell,
102
                                  "text",  GIMP_UNIT_STORE_UNIT_SHORT_FORMAT,
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
                                  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);
}
141 142 143 144

GimpUnit
gimp_unit_combo_box_get_active (GimpUnitComboBox *combo)
{
145 146 147
  GtkTreeIter iter;
  gint        unit;

148 149
  g_return_val_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo), -1);

150 151 152 153 154 155 156
  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;
157 158 159 160 161 162
}

void
gimp_unit_combo_box_set_active (GimpUnitComboBox *combo,
                                GimpUnit          unit)
{
163 164 165 166
  GtkTreeModel *model;
  GtkTreeIter   iter;
  gboolean      iter_valid;

167 168
  g_return_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo));

169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187
  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;
        }
    }

188
}