gimppluginaction.c 7.38 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
/* The GIMP -- an image manipulation program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * gimppluginaction.c
 * Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "config.h"

#include <gtk/gtk.h>

#include "widgets-types.h"

#include "core/gimpmarshal.h"

30 31
#include "plug-in/plug-in-proc.h"

32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
#include "gimppluginaction.h"


enum
{
  SELECTED,
  LAST_SIGNAL
};

enum
{
  PROP_0,
  PROP_PROC_DEF
};


48 49
static void   gimp_plug_in_action_init          (GimpPlugInAction      *action);
static void   gimp_plug_in_action_class_init    (GimpPlugInActionClass *klass);
50

51 52 53 54 55 56 57 58
static void   gimp_plug_in_action_set_property  (GObject      *object,
                                                 guint         prop_id,
                                                 const GValue *value,
                                                 GParamSpec   *pspec);
static void   gimp_plug_in_action_get_property  (GObject      *object,
                                                 guint         prop_id,
                                                 GValue       *value,
                                                 GParamSpec   *pspec);
59

60 61 62
static void   gimp_plug_in_action_activate      (GtkAction    *action);
static void   gimp_plug_in_action_connect_proxy (GtkAction    *action,
                                                 GtkWidget    *proxy);
63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88


static GtkActionClass *parent_class                = NULL;
static guint           action_signals[LAST_SIGNAL] = { 0 };


GType
gimp_plug_in_action_get_type (void)
{
  static GType type = 0;

  if (!type)
    {
      static const GTypeInfo type_info =
      {
        sizeof (GimpPlugInActionClass),
        (GBaseInitFunc) NULL,
        (GBaseFinalizeFunc) NULL,
        (GClassInitFunc) gimp_plug_in_action_class_init,
        (GClassFinalizeFunc) NULL,
        NULL,
        sizeof (GimpPlugInAction),
        0, /* n_preallocs */
        (GInstanceInitFunc) gimp_plug_in_action_init,
      };

89
      type = g_type_register_static (GIMP_TYPE_ACTION,
90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107
                                     "GimpPlugInAction",
                                     &type_info, 0);
    }

  return type;
}

static void
gimp_plug_in_action_class_init (GimpPlugInActionClass *klass)
{
  GObjectClass   *object_class = G_OBJECT_CLASS (klass);
  GtkActionClass *action_class = GTK_ACTION_CLASS (klass);

  parent_class = g_type_class_peek_parent (klass);

  object_class->set_property = gimp_plug_in_action_set_property;
  object_class->get_property = gimp_plug_in_action_get_property;

108 109
  action_class->activate      = gimp_plug_in_action_activate;
  action_class->connect_proxy = gimp_plug_in_action_connect_proxy;
110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170

  g_object_class_install_property (object_class, PROP_PROC_DEF,
                                   g_param_spec_pointer ("proc-def",
                                                         NULL, NULL,
                                                         G_PARAM_READWRITE));

  action_signals[SELECTED] =
    g_signal_new ("selected",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_FIRST,
                  G_STRUCT_OFFSET (GimpPlugInActionClass, selected),
		  NULL, NULL,
                  gimp_marshal_VOID__POINTER,
                  G_TYPE_NONE, 1,
                  G_TYPE_POINTER);
}

static void
gimp_plug_in_action_init (GimpPlugInAction *action)
{
  action->proc_def = NULL;
}

static void
gimp_plug_in_action_get_property (GObject    *object,
                                  guint       prop_id,
                                  GValue     *value,
                                  GParamSpec *pspec)
{
  GimpPlugInAction *action = GIMP_PLUG_IN_ACTION (object);

  switch (prop_id)
    {
    case PROP_PROC_DEF:
      g_value_set_pointer (value, action->proc_def);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gimp_plug_in_action_set_property (GObject      *object,
                                  guint         prop_id,
                                  const GValue *value,
                                  GParamSpec   *pspec)
{
  GimpPlugInAction *action = GIMP_PLUG_IN_ACTION (object);

  switch (prop_id)
    {
    case PROP_PROC_DEF:
      action->proc_def = g_value_get_pointer (value);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

171 172 173 174 175
static void
gimp_plug_in_action_activate (GtkAction *action)
{
  GimpPlugInAction *plug_in_action = GIMP_PLUG_IN_ACTION (action);

176
  gimp_plug_in_action_selected (plug_in_action, plug_in_action->proc_def);
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
}

static void
gimp_plug_in_action_connect_proxy (GtkAction *action,
                                   GtkWidget *proxy)
{
  GimpPlugInAction *plug_in_action = GIMP_PLUG_IN_ACTION (action);

  GTK_ACTION_CLASS (parent_class)->connect_proxy (action, proxy);

  if (GTK_IS_IMAGE_MENU_ITEM (proxy) && plug_in_action->proc_def)
    {
      GdkPixbuf *pixbuf;

      pixbuf = plug_in_proc_def_get_pixbuf (plug_in_action->proc_def);

      if (pixbuf)
        {
          GdkScreen   *screen   = gtk_widget_get_screen (proxy);
          GtkSettings *settings = gtk_settings_get_for_screen (screen);
          gint         width;
          gint         height;
          GtkWidget   *image;

          gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_MENU,
                                             &width, &height);

          if (width  != gdk_pixbuf_get_width  (pixbuf) ||
              height != gdk_pixbuf_get_height (pixbuf))
            {
              GdkPixbuf *copy;

              copy = gdk_pixbuf_scale_simple (pixbuf, width, height,
                                              GDK_INTERP_BILINEAR);
              g_object_unref (pixbuf);
              pixbuf = copy;
            }

          image = gtk_image_new_from_pixbuf (pixbuf);
          gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), image);
          g_object_unref (pixbuf);
        }
    }
}


/*  public functions  */

225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241
GimpPlugInAction *
gimp_plug_in_action_new (const gchar   *name,
                         const gchar   *label,
                         const gchar   *tooltip,
                         const gchar   *stock_id,
                         PlugInProcDef *proc_def)
{
  return g_object_new (GIMP_TYPE_PLUG_IN_ACTION,
                       "name",     name,
                       "label",    label,
                       "tooltip",  tooltip,
                       "stock_id", stock_id,
                       "proc-def", proc_def,
                       NULL);
}

void
242 243
gimp_plug_in_action_selected (GimpPlugInAction *action,
                              PlugInProcDef    *proc_def)
244 245 246
{
  g_return_if_fail (GIMP_IS_PLUG_IN_ACTION (action));

247
  g_signal_emit (action, action_signals[SELECTED], 0, proc_def);
248
}