vcs.maemo.org Git - hildon/blob - hildon-widgets/hildon-color-chooser.c

   1 /*
   2  * This file is part of hildon-libs
   3  *
   4  * Copyright (C) 2005, 2006 Nokia Corporation, all rights reserved.
   5  *
   6  * Author: Kuisma Salonen <kuisma.salonen@nokia.com>
   7  * Contact: Michael Dominic Kostrzewa <michael.kostrzewa@nokia.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; version 2.1 of
  12  * the License.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  22  * 02110-1301 USA
  23  *
  24  */
  25
  26
  27 /**
  28  * SECTION:hildon-color-chooser
  29  * @short_description: A widget to choose a color.
  30  * @see_also: #HildonColorChooserDialog, #HildonColorButton
  31  *
  32  * HildonColorChooser is a widget to choose a color.
  33  */
  34 #include <gtk/gtk.h>
  35
  36
  37 #include "hildon-color-chooser.h"
  38
  39 #include "hildon-plugin-widget.h"
  40
  41
  42 enum {
  43   COLOR_CHANGED,
  44   LAST_SIGNAL
  45 };
  46
  47
  48 static HildonPluginWidgetInfo *global_plugin = NULL;
  49
  50
  51 static guint color_chooser_signals[LAST_SIGNAL] = { 0 };
  52
  53
  54 static void hildon_color_chooser_init(HildonColorChooser *sel);
  55 static void hildon_color_chooser_class_init(HildonColorChooserClass *klass);
  56
  57
  58 GtkType hildon_color_chooser_get_type ()
  59 {
  60   static GtkType chooser_type = 0;
  61
  62   if (!chooser_type)
  63     {
  64       static const GtkTypeInfo chooser_info =
  65       {
  66         "HildonColorChooser",
  67         sizeof (HildonColorChooser),
  68         sizeof (HildonColorChooserClass),
  69         (GtkClassInitFunc) hildon_color_chooser_class_init,
  70         (GtkObjectInitFunc) hildon_color_chooser_init,
  71         /* reserved_1 */ NULL,
  72         /* reserved_1 */ NULL,
  73         (GtkClassInitFunc) NULL
  74       };
  75
  76       chooser_type = gtk_type_unique (GTK_TYPE_WIDGET, &chooser_info);
  77     }
  78
  79   return chooser_type;
  80 }
  81
  82
  83 static void hildon_color_chooser_init(HildonColorChooser *sel)
  84 {
  85   sel->color.red   = 0x0000;
  86   sel->color.green = 0x0000;
  87   sel->color.blue  = 0x0000;
  88   sel->color.pixel = 0x00000000;
  89 }
  90
  91 static void hildon_color_chooser_class_init(HildonColorChooserClass *klass)
  92 {
  93   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
  94   GtkObjectClass *object_class = GTK_OBJECT_CLASS(klass);
  95
  96   klass->set_color = NULL;
  97
  98
  99   gtk_widget_class_install_style_property(widget_class,
 100                                           g_param_spec_boxed("outer_border",
 101                                                              "Outer border",
 102                                                              "Size of outer border",
 103                                                              GTK_TYPE_BORDER,
 104                                                              G_PARAM_READABLE));
 105
 106   color_chooser_signals[COLOR_CHANGED] = g_signal_new("color-changed", G_OBJECT_CLASS_TYPE (object_class),
 107                                                       G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (HildonColorChooserClass, color_changed),
 108                                                       NULL, NULL, g_cclosure_marshal_VOID__BOXED, G_TYPE_NONE, 1, GDK_TYPE_COLOR);
 109 }
 110
 111 /**
 112  * hildon_color_chooser_new:
 113  *
 114  * Creates a new color chooser widget. The dialog is created through
 115  * HildonPluginWidget API and is loaded from plugin. The initially selected
 116  * color can be anything, so it's recommended to call
 117  * hildon_color_chooser_dialog_set_color () after creating the widget.
 118  *
 119  * Returns: a new color chooser widget
 120  */
 121 GtkWidget *hildon_color_chooser_new()
 122 {
 123   if(!global_plugin) {
 124     global_plugin = hildon_plugin_info_initialize(HILDON_TYPE_COLOR_CHOOSER, NULL);
 125   }
 126
 127
 128   return hildon_plugin_info_construct_widget(global_plugin);
 129 }
 130
 131 /**
 132  * hildon_color_chooser_set_color:
 133  * @chooser: a #HildonColorChooser
 134  * @color: a color to be set
 135  *
 136  * Sets the color selected in the widget.
 137  */
 138 void hildon_color_chooser_set_color(HildonColorChooser *chooser, GdkColor *color)
 139 {
 140   HildonColorChooserClass *klass = HILDON_COLOR_CHOOSER_CLASS(G_OBJECT_GET_CLASS(chooser));
 141
 142
 143   chooser->color = *color;
 144
 145   if(klass->set_color) {
 146     klass->set_color(chooser, color);
 147   }
 148 }
 149
 150 /**
 151  * hildon_color_chooser_get_color:
 152  * @chooser: a #HildonColorChooser
 153  * @color: a pointer to #GdkColor to be filled by the function
 154  *
 155  * Gets the color selected in the widget.
 156  */
 157 void hildon_color_chooser_get_color(HildonColorChooser *chooser, GdkColor *color)
 158 {
 159   *color = chooser->color;
 160 }
 161
 162
 163 void hildon_color_chooser_emit_color_changed(HildonColorChooser *chooser)
 164 {
 165   g_signal_emit(chooser, color_chooser_signals[COLOR_CHANGED], 0, &chooser->color);
 166 }