Pileus Git - ~andy/gtk/blob - gtk/gtkcolorchooser.c

   1 /* GTK - The GIMP Toolkit
   2  *
   3  * Copyright (C) 2012, Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "config.h"
  22
  23 #include "gtkcolorchooser.h"
  24 #include "gtkcolorchooserprivate.h"
  25 #include "gtkintl.h"
  26 #include "gtktypebuiltins.h"
  27 #include "gtkprivate.h"
  28
  29 enum
  30 {
  31   COLOR_ACTIVATED,
  32   LAST_SIGNAL
  33 };
  34
  35 static guint signals[LAST_SIGNAL];
  36
  37 G_DEFINE_INTERFACE (GtkColorChooser, gtk_color_chooser, G_TYPE_OBJECT);
  38
  39 static void
  40 gtk_color_chooser_default_init (GtkColorChooserInterface *iface)
  41 {
  42   g_object_interface_install_property (iface,
  43       g_param_spec_boxed ("color",
  44                           P_("Color"),
  45                           P_("Current color, as a GdkRGBA"),
  46                           GDK_TYPE_RGBA,
  47                           GTK_PARAM_READWRITE));
  48
  49   /**
  50    * GtkColorChooser::color-activated:
  51    * @self: the object which received the signal
  52    * @color: the color
  53    *
  54    * Emitted when a color is activated from the color chooser.
  55    * This usually happens when the user clicks a color swatch,
  56    * or a color is selected and the user presses one of the keys
  57    * Space, Shift+Space, Return or Enter.
  58     */
  59   signals[COLOR_ACTIVATED] =
  60     g_signal_new ("color-activated",
  61                   GTK_TYPE_COLOR_CHOOSER,
  62                   G_SIGNAL_RUN_FIRST,
  63                   G_STRUCT_OFFSET (GtkColorChooserInterface, color_activated),
  64                   NULL, NULL,
  65                   NULL,
  66                   G_TYPE_NONE,
  67                   1, G_TYPE_STRING);
  68 }
  69
  70 /**
  71  * gtk_color_chooser_get_color:
  72  * @chooser: a #GtkColorChooser
  73  * @color: return location for the color
  74  *
  75  * Gets the currently-selected color.
  76  */
  77 void
  78 gtk_color_chooser_get_color (GtkColorChooser *chooser,
  79                              GdkRGBA         *color)
  80 {
  81   g_return_if_fail (GTK_IS_COLOR_CHOOSER (chooser));
  82
  83   GTK_COLOR_CHOOSER_GET_IFACE (chooser)->get_color (chooser, color);
  84 }
  85
  86 /**
  87  * gtk_color_chooser_set_color:
  88  * @chooser: a #GtkColorChooser
  89  * @color: the new color
  90  *
  91  * Sets the currently-selected color.
  92  */
  93 void
  94 gtk_color_chooser_set_color (GtkColorChooser *chooser,
  95                              const GdkRGBA   *color)
  96 {
  97   g_return_if_fail (GTK_IS_COLOR_CHOOSER (chooser));
  98   g_return_if_fail (color != NULL);
  99
 100   GTK_COLOR_CHOOSER_GET_IFACE (chooser)->set_color (chooser, color);
 101 }
 102
 103 void
 104 _gtk_color_chooser_color_activated (GtkColorChooser *chooser,
 105                                     const GdkRGBA   *color)
 106 {
 107   g_return_if_fail (GTK_IS_COLOR_CHOOSER (chooser));
 108
 109   g_signal_emit (chooser, signals[COLOR_ACTIVATED], 0, color);
 110 }