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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2012 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtkdialog.h"
  23 #include "gtkstock.h"
  24 #include "gtkbox.h"
  25 #include "gtkprivate.h"
  26 #include "gtkintl.h"
  27
  28 #include "gtkcolorchooserprivate.h"
  29 #include "gtkcolorchooserdialog.h"
  30 #include "gtkcolorchooserwidget.h"
  31
  32 /**
  33  * SECTION:gtkcolorchooserdialog
  34  * @Short_description: A dialog for choosing colors
  35  * @Title: GtkColorChooserDialog
  36  * @See_also: #GtkColorChooser, #GtkDialog
  37  *
  38  * The #GtkColorChooserDialog widget is a dialog for choosing
  39  * a color. It implements the #GtkColorChooser interface.
  40  *
  41  * Since: 3.4
  42  */
  43
  44 struct _GtkColorChooserDialogPrivate
  45 {
  46   GtkWidget *chooser;
  47
  48   GtkWidget *select_button;
  49   GtkWidget *cancel_button;
  50 };
  51
  52 enum
  53 {
  54   PROP_ZERO,
  55   PROP_RGBA,
  56   PROP_USE_ALPHA,
  57   PROP_SHOW_EDITOR
  58 };
  59
  60 static void gtk_color_chooser_dialog_iface_init (GtkColorChooserInterface *iface);
  61
  62 G_DEFINE_TYPE_WITH_CODE (GtkColorChooserDialog, gtk_color_chooser_dialog, GTK_TYPE_DIALOG,
  63                          G_IMPLEMENT_INTERFACE (GTK_TYPE_COLOR_CHOOSER,
  64                                                 gtk_color_chooser_dialog_iface_init))
  65
  66 static void
  67 propagate_notify (GObject               *o,
  68                   GParamSpec            *pspec,
  69                   GtkColorChooserDialog *cc)
  70 {
  71   g_object_notify (G_OBJECT (cc), "rgba");
  72 }
  73
  74 static void
  75 color_activated_cb (GtkColorChooser *chooser,
  76                     GdkRGBA         *color,
  77                     GtkDialog       *dialog)
  78 {
  79   gtk_dialog_response (dialog, GTK_RESPONSE_OK);
  80 }
  81
  82 static void
  83 gtk_color_chooser_dialog_init (GtkColorChooserDialog *cc)
  84 {
  85   GtkColorChooserDialogPrivate *priv;
  86   GtkDialog *dialog = GTK_DIALOG (cc);
  87   GtkWidget *action_area, *content_area;
  88
  89   cc->priv = G_TYPE_INSTANCE_GET_PRIVATE (cc,
  90                                           GTK_TYPE_COLOR_CHOOSER_DIALOG,
  91                                           GtkColorChooserDialogPrivate);
  92   priv = cc->priv;
  93
  94   content_area = gtk_dialog_get_content_area (dialog);
  95   action_area = gtk_dialog_get_action_area (dialog);
  96
  97   gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
  98   gtk_box_set_spacing (GTK_BOX (content_area), 2); /* 2 * 5 + 2 = 12 */
  99   gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
 100   gtk_box_set_spacing (GTK_BOX (action_area), 6);
 101
 102   gtk_widget_push_composite_child ();
 103
 104   gtk_window_set_resizable (GTK_WINDOW (cc), FALSE);
 105
 106   /* Create the content area */
 107   priv->chooser = gtk_color_chooser_widget_new ();
 108   gtk_container_set_border_width (GTK_CONTAINER (priv->chooser), 5);
 109   gtk_widget_show (priv->chooser);
 110   gtk_box_pack_start (GTK_BOX (content_area),
 111                       priv->chooser, TRUE, TRUE, 0);
 112
 113   g_signal_connect (priv->chooser, "notify::rgba",
 114                     G_CALLBACK (propagate_notify), cc);
 115
 116   g_signal_connect (priv->chooser, "color-activated",
 117                     G_CALLBACK (color_activated_cb), cc);
 118
 119   /* Create the action area */
 120   priv->cancel_button = gtk_dialog_add_button (dialog,
 121                                                GTK_STOCK_CANCEL,
 122                                                GTK_RESPONSE_CANCEL);
 123   priv->select_button = gtk_dialog_add_button (dialog,
 124                                                _("_Select"),
 125                                                GTK_RESPONSE_OK);
 126   gtk_widget_grab_default (priv->select_button);
 127
 128   gtk_dialog_set_alternative_button_order (dialog,
 129                                            GTK_RESPONSE_OK,
 130                                            GTK_RESPONSE_CANCEL,
 131                                            -1);
 132
 133   gtk_window_set_title (GTK_WINDOW (cc), _("Select a Color"));
 134
 135   gtk_widget_pop_composite_child ();
 136 }
 137
 138 static void
 139 gtk_color_chooser_dialog_response (GtkDialog *dialog,
 140                                    gint       response_id)
 141 {
 142   if (response_id == GTK_RESPONSE_OK)
 143     {
 144       GdkRGBA color;
 145
 146       gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (dialog), &color);
 147       gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (dialog), &color);
 148     }
 149
 150   g_object_set (GTK_COLOR_CHOOSER_DIALOG (dialog)->priv->chooser,
 151                 "show-editor", FALSE, NULL);
 152 }
 153
 154 static void
 155 gtk_color_chooser_dialog_get_property (GObject    *object,
 156                                        guint       prop_id,
 157                                        GValue     *value,
 158                                        GParamSpec *pspec)
 159 {
 160   GtkColorChooserDialog *cd = GTK_COLOR_CHOOSER_DIALOG (object);
 161   GtkColorChooser *cc = GTK_COLOR_CHOOSER (object);
 162
 163   switch (prop_id)
 164     {
 165     case PROP_RGBA:
 166       {
 167         GdkRGBA color;
 168
 169         gtk_color_chooser_get_rgba (cc, &color);
 170         g_value_set_boxed (value, &color);
 171       }
 172       break;
 173     case PROP_USE_ALPHA:
 174       g_value_set_boolean (value, gtk_color_chooser_get_use_alpha (GTK_COLOR_CHOOSER (cd->priv->chooser)));
 175       break;
 176     case PROP_SHOW_EDITOR:
 177       {
 178         gboolean show_editor;
 179         g_object_get (cd->priv->chooser, "show-editor", &show_editor, NULL);
 180         g_value_set_boolean (value, show_editor);
 181       }
 182       break;
 183     default:
 184       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 185       break;
 186     }
 187 }
 188
 189 static void
 190 gtk_color_chooser_dialog_set_property (GObject      *object,
 191                                        guint         prop_id,
 192                                        const GValue *value,
 193                                        GParamSpec   *pspec)
 194 {
 195   GtkColorChooserDialog *cd = GTK_COLOR_CHOOSER_DIALOG (object);
 196   GtkColorChooser *cc = GTK_COLOR_CHOOSER (object);
 197
 198   switch (prop_id)
 199     {
 200     case PROP_RGBA:
 201       gtk_color_chooser_set_rgba (cc, g_value_get_boxed (value));
 202       break;
 203     case PROP_USE_ALPHA:
 204       gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (cd->priv->chooser), g_value_get_boolean (value));
 205       break;
 206     case PROP_SHOW_EDITOR:
 207       g_object_set (cd->priv->chooser,
 208                     "show-editor", g_value_get_boolean (value),
 209                     NULL);
 210       break;
 211     default:
 212       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 213       break;
 214     }
 215 }
 216
 217 static void
 218 gtk_color_chooser_dialog_class_init (GtkColorChooserDialogClass *class)
 219 {
 220   GObjectClass *object_class = G_OBJECT_CLASS (class);
 221   GtkDialogClass *dialog_class = GTK_DIALOG_CLASS (class);
 222
 223   object_class->get_property = gtk_color_chooser_dialog_get_property;
 224   object_class->set_property = gtk_color_chooser_dialog_set_property;
 225
 226   dialog_class->response = gtk_color_chooser_dialog_response;
 227
 228   g_object_class_override_property (object_class, PROP_RGBA, "rgba");
 229   g_object_class_override_property (object_class, PROP_USE_ALPHA, "use-alpha");
 230   g_object_class_install_property (object_class, PROP_SHOW_EDITOR,
 231       g_param_spec_boolean ("show-editor", P_("Show editor"), P_("Show editor"),
 232                             FALSE, GTK_PARAM_READWRITE));
 233
 234
 235   g_type_class_add_private (class, sizeof (GtkColorChooserDialogPrivate));
 236 }
 237
 238 static void
 239 gtk_color_chooser_dialog_get_rgba (GtkColorChooser *chooser,
 240                                    GdkRGBA         *color)
 241 {
 242   GtkColorChooserDialog *cc = GTK_COLOR_CHOOSER_DIALOG (chooser);
 243
 244   gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (cc->priv->chooser), color);
 245 }
 246
 247 static void
 248 gtk_color_chooser_dialog_set_rgba (GtkColorChooser *chooser,
 249                                    const GdkRGBA   *color)
 250 {
 251   GtkColorChooserDialog *cc = GTK_COLOR_CHOOSER_DIALOG (chooser);
 252
 253   gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (cc->priv->chooser), color);
 254 }
 255
 256 static void
 257 gtk_color_chooser_dialog_iface_init (GtkColorChooserInterface *iface)
 258 {
 259   iface->get_rgba = gtk_color_chooser_dialog_get_rgba;
 260   iface->set_rgba = gtk_color_chooser_dialog_set_rgba;
 261 }
 262
 263 /**
 264  * gtk_color_chooser_dialog_new:
 265  * @title: (allow-none): Title of the dialog, or %NULL
 266  * @parent: (allow-none): Transient parent of the dialog, or %NULL
 267  *
 268  * Creates a new #GtkColorChooserDialog.
 269  *
 270  * Return value: a new #GtkColorChooserDialog
 271  *
 272  * Since: 3.4
 273  */
 274 GtkWidget *
 275 gtk_color_chooser_dialog_new (const gchar *title,
 276                               GtkWindow   *parent)
 277 {
 278   GtkColorChooserDialog *dialog;
 279
 280   dialog = g_object_new (GTK_TYPE_COLOR_CHOOSER_DIALOG,
 281                          "title", title,
 282                          "transient-for", parent,
 283                          NULL);
 284
 285   return GTK_WIDGET (dialog);
 286 }