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gimp/app/widgets/gimpchanneltreeview.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpchannellistview.c
* Copyright (C) 2001 Michael Natterer
*
* 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 "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "apptypes.h"
#include "drawable.h"
#include "gdisplay.h"
#include "gimpcontainer.h"
#include "gimpchannel.h"
#include "gimpdnd.h"
#include "gimpimage.h"
#include "gimpmarshal.h"
#include "gimprc.h"
#include "gimpviewable.h"
#include "gimpchannellistview.h"
#include "gimpcomponentlistitem.h"
#include "gimpimagepreview.h"
#include "gimplistitem.h"
#include "tools/paint_options.h"
#include "libgimp/gimpintl.h"
#include "pixmaps/toselection.xpm"
static void gimp_channel_list_view_class_init (GimpChannelListViewClass *klass);
static void gimp_channel_list_view_init (GimpChannelListView *view);
static void gimp_channel_list_view_destroy (GtkObject *object);
static void gimp_channel_list_view_set_image (GimpDrawableListView *view,
GimpImage *gimage);
static void gimp_channel_list_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data);
static void gimp_channel_list_view_to_selection (GimpChannelListView *view,
GimpChannel *channel);
static void gimp_channel_list_view_toselection_clicked
(GtkWidget *widget,
GimpChannelListView *view);
static void gimp_channel_list_view_toselection_dropped
(GtkWidget *widget,
GimpViewable *viewable,
gpointer data);
static void gimp_channel_list_view_create_components (GimpChannelListView *view);
static GimpDrawableListViewClass *parent_class = NULL;
GtkType
gimp_channel_list_view_get_type (void)
{
static guint view_type = 0;
if (! view_type)
{
GtkTypeInfo view_info =
{
"GimpChannelListView",
sizeof (GimpChannelListView),
sizeof (GimpChannelListViewClass),
(GtkClassInitFunc) gimp_channel_list_view_class_init,
(GtkObjectInitFunc) gimp_channel_list_view_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL
};
view_type = gtk_type_unique (GIMP_TYPE_DRAWABLE_LIST_VIEW, &view_info);
}
return view_type;
}
static void
gimp_channel_list_view_class_init (GimpChannelListViewClass *klass)
{
GtkObjectClass *object_class;
GimpContainerViewClass *container_view_class;
GimpDrawableListViewClass *drawable_view_class;
object_class = (GtkObjectClass *) klass;
container_view_class = (GimpContainerViewClass *) klass;
drawable_view_class = (GimpDrawableListViewClass *) klass;
parent_class = gtk_type_class (GIMP_TYPE_DRAWABLE_LIST_VIEW);
object_class->destroy = gimp_channel_list_view_destroy;
container_view_class->select_item = gimp_channel_list_view_select_item;
drawable_view_class->set_image = gimp_channel_list_view_set_image;
}
static void
gimp_channel_list_view_init (GimpChannelListView *view)
{
GimpDrawableListView *drawable_view;
GtkWidget *pixmap;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
view->component_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (view->component_frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (view), view->component_frame, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (view), view->component_frame, 0);
/* don't show */
view->component_list = gtk_list_new ();
gtk_list_set_selection_mode (GTK_LIST (view->component_list),
GTK_SELECTION_MULTIPLE);
gtk_container_add (GTK_CONTAINER (view->component_frame),
view->component_list);
gtk_widget_show (view->component_list);
/* To Selection button */
view->toselection_button = gtk_button_new ();
gtk_box_pack_start (GTK_BOX (drawable_view->button_box),
view->toselection_button, TRUE, TRUE, 0);
gtk_box_reorder_child (GTK_BOX (drawable_view->button_box),
view->toselection_button, 5);
gtk_widget_show (view->toselection_button);
gimp_help_set_help_data (view->toselection_button,
_("Channel to selection"), NULL);
gtk_signal_connect (GTK_OBJECT (view->toselection_button), "clicked",
GTK_SIGNAL_FUNC (gimp_channel_list_view_toselection_clicked),
view);
pixmap = gimp_pixmap_new (toselection_xpm);
gtk_container_add (GTK_CONTAINER (view->toselection_button), pixmap);
gtk_widget_show (pixmap);
gimp_gtk_drag_dest_set_by_type (GTK_WIDGET (view->toselection_button),
GTK_DEST_DEFAULT_ALL,
GIMP_TYPE_CHANNEL,
GDK_ACTION_COPY);
gimp_dnd_viewable_dest_set (GTK_WIDGET (view->toselection_button),
GIMP_TYPE_CHANNEL,
gimp_channel_list_view_toselection_dropped,
view);
gtk_widget_set_sensitive (view->toselection_button, FALSE);
}
static void
gimp_channel_list_view_destroy (GtkObject *object)
{
GimpChannelListView *view;
view = GIMP_CHANNEL_LIST_VIEW (object);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
/* GimpChannelListView methods */
static void
gimp_channel_list_view_set_image (GimpDrawableListView *view,
GimpImage *gimage)
{
GimpChannelListView *channel_view;
channel_view = GIMP_CHANNEL_LIST_VIEW (view);
if (view->gimage)
{
if (! gimage)
gtk_widget_hide (channel_view->component_frame);
gtk_list_clear_items (GTK_LIST (channel_view->component_list), 0, -1);
}
if (GIMP_DRAWABLE_LIST_VIEW_CLASS (parent_class)->set_image)
GIMP_DRAWABLE_LIST_VIEW_CLASS (parent_class)->set_image (view, gimage);
if (view->gimage)
{
if (! GTK_WIDGET_VISIBLE (channel_view->component_frame))
gtk_widget_show (channel_view->component_frame);
gimp_channel_list_view_create_components (channel_view);
}
}
/* GimpContainerView methods */
static void
gimp_channel_list_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data)
{
GimpChannelListView *list_view;
gboolean toselection_sensitive = FALSE;
list_view = GIMP_CHANNEL_LIST_VIEW (view);
if (GIMP_CONTAINER_VIEW_CLASS (parent_class)->select_item)
GIMP_CONTAINER_VIEW_CLASS (parent_class)->select_item (view,
item,
insert_data);
if (item)
{
toselection_sensitive = TRUE;
}
gtk_widget_set_sensitive (list_view->toselection_button, toselection_sensitive);
}
/* "To Selection" functions */
static void
gimp_channel_list_view_to_selection (GimpChannelListView *view,
GimpChannel *channel)
{
if (channel)
g_print ("to selection \"%s\"\n", GIMP_OBJECT (channel)->name);
}
static void
gimp_channel_list_view_toselection_clicked (GtkWidget *widget,
GimpChannelListView *view)
{
GimpDrawableListView *drawable_view;
GimpDrawable *drawable;
drawable_view = GIMP_DRAWABLE_LIST_VIEW (view);
drawable = drawable_view->get_drawable_func (drawable_view->gimage);
if (drawable)
gimp_channel_list_view_to_selection (view, GIMP_CHANNEL (drawable));
}
static void
gimp_channel_list_view_toselection_dropped (GtkWidget *widget,
GimpViewable *viewable,
gpointer data)
{
GimpChannelListView *view;
view = (GimpChannelListView *) data;
if (viewable && gimp_container_have (GIMP_CONTAINER_VIEW (view)->container,
GIMP_OBJECT (viewable)))
{
gimp_channel_list_view_to_selection (view, GIMP_CHANNEL (viewable));
}
}
static void
gimp_channel_list_view_create_components (GimpChannelListView *view)
{
GimpImage *gimage;
GtkWidget *list_item;
gint n_components = 0;
ChannelType components[MAX_CHANNELS];
GList *list = NULL;
gint i;
gimage = GIMP_DRAWABLE_LIST_VIEW (view)->gimage;
switch (gimp_image_base_type (gimage))
{
case RGB:
n_components = 3;
components[0] = RED_CHANNEL;
components[1] = GREEN_CHANNEL;
components[2] = BLUE_CHANNEL;
break;
case GRAY:
n_components = 1;
components[0] = GRAY_CHANNEL;
break;
case INDEXED:
n_components = 1;
components[0] = INDEXED_CHANNEL;
break;
}
components[n_components++] = ALPHA_CHANNEL;
for (i = 0; i < n_components; i++)
{
list_item =
gimp_component_list_item_new (gimage,
GIMP_CONTAINER_VIEW (view)->preview_size,
components[i]);
gtk_widget_show (list_item);
list = g_list_append (list, list_item);
}
gtk_list_insert_items (GTK_LIST (view->component_list), list, 0);
gtk_widget_queue_resize (GTK_WIDGET (view->component_frame));
}
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