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gimp/app/widgets/gimpdrawabletreeview.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpdrawabletreeview.c
* Copyright (C) 2001-2009 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimp-edit.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimppattern.h"
#include "gimpcontainerview.h"
#include "gimpdnd.h"
#include "gimpdrawabletreeview.h"
#include "gimp-intl.h"
static void gimp_drawable_tree_view_view_iface_init (GimpContainerViewInterface *iface);
static void gimp_drawable_tree_view_constructed (GObject *object);
static gboolean gimp_drawable_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data);
static gboolean gimp_drawable_tree_view_drop_possible(GimpContainerTreeView *view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreePath *drop_path,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action);
static void gimp_drawable_tree_view_drop_viewable (GimpContainerTreeView *view,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_drawable_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static void gimp_drawable_tree_view_set_image (GimpItemTreeView *view,
GimpImage *image);
static void gimp_drawable_tree_view_floating_selection_changed
(GimpImage *image,
GimpDrawableTreeView *view);
static void gimp_drawable_tree_view_new_pattern_dropped
(GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data);
static void gimp_drawable_tree_view_new_color_dropped
(GtkWidget *widget,
gint x,
gint y,
const GimpRGB *color,
gpointer data);
G_DEFINE_TYPE_WITH_CODE (GimpDrawableTreeView, gimp_drawable_tree_view,
GIMP_TYPE_ITEM_TREE_VIEW,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
gimp_drawable_tree_view_view_iface_init))
#define parent_class gimp_drawable_tree_view_parent_class
static GimpContainerViewInterface *parent_view_iface = NULL;
static void
gimp_drawable_tree_view_class_init (GimpDrawableTreeViewClass *klass)
{
GObjectClass *object_class;
GimpContainerTreeViewClass *tree_view_class;
GimpItemTreeViewClass *item_view_class;
object_class = G_OBJECT_CLASS (klass);
tree_view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
item_view_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
object_class->constructed = gimp_drawable_tree_view_constructed;
tree_view_class->drop_possible = gimp_drawable_tree_view_drop_possible;
tree_view_class->drop_viewable = gimp_drawable_tree_view_drop_viewable;
tree_view_class->drop_color = gimp_drawable_tree_view_drop_color;
item_view_class->set_image = gimp_drawable_tree_view_set_image;
item_view_class->lock_content_stock_id = GIMP_STOCK_TOOL_PAINTBRUSH;
item_view_class->lock_content_tooltip = _("Lock pixels");
item_view_class->lock_position_stock_id = GIMP_STOCK_TOOL_MOVE;
item_view_class->lock_position_tooltip = _("Lock position and size");
}
static void
gimp_drawable_tree_view_view_iface_init (GimpContainerViewInterface *iface)
{
parent_view_iface = g_type_interface_peek_parent (iface);
iface->select_item = gimp_drawable_tree_view_select_item;
}
static void
gimp_drawable_tree_view_init (GimpDrawableTreeView *view)
{
}
static void
gimp_drawable_tree_view_constructed (GObject *object)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_dnd_viewable_dest_add (gimp_item_tree_view_get_new_button (item_view),
GIMP_TYPE_PATTERN,
gimp_drawable_tree_view_new_pattern_dropped,
item_view);
gimp_dnd_color_dest_add (gimp_item_tree_view_get_new_button (item_view),
gimp_drawable_tree_view_new_color_dropped,
item_view);
gimp_dnd_color_dest_add (GTK_WIDGET (tree_view->view),
NULL, tree_view);
gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_PATTERN,
NULL, tree_view);
}
/* GimpContainerView methods */
static gboolean
gimp_drawable_tree_view_select_item (GimpContainerView *view,
GimpViewable *item,
gpointer insert_data)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
gboolean success = TRUE;
if (gimp_item_tree_view_get_image (item_view))
{
GimpLayer *floating_sel =
gimp_image_get_floating_selection (gimp_item_tree_view_get_image (item_view));
success = (item == NULL ||
floating_sel == NULL ||
item == GIMP_VIEWABLE (floating_sel));
}
if (success)
success = parent_view_iface->select_item (view, item, insert_data);
return success;
}
/* GimpContainerTreeView methods */
static gboolean
gimp_drawable_tree_view_drop_possible (GimpContainerTreeView *tree_view,
GimpDndType src_type,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreePath *drop_path,
GtkTreeViewDropPosition drop_pos,
GtkTreeViewDropPosition *return_drop_pos,
GdkDragAction *return_drag_action)
{
if (GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_possible (tree_view,
src_type,
src_viewable,
dest_viewable,
drop_path,
drop_pos,
return_drop_pos,
return_drag_action))
{
if (src_type == GIMP_DND_TYPE_COLOR ||
src_type == GIMP_DND_TYPE_PATTERN)
{
if (! dest_viewable ||
gimp_item_is_content_locked (GIMP_ITEM (dest_viewable)) ||
gimp_viewable_get_children (GIMP_VIEWABLE (dest_viewable)))
return FALSE;
if (return_drop_pos)
{
*return_drop_pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
}
}
return TRUE;
}
return FALSE;
}
static void
gimp_drawable_tree_view_drop_viewable (GimpContainerTreeView *view,
GimpViewable *src_viewable,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
if (dest_viewable && GIMP_IS_PATTERN (src_viewable))
{
gimp_edit_fill_full (gimp_item_get_image (GIMP_ITEM (dest_viewable)),
GIMP_DRAWABLE (dest_viewable),
NULL, GIMP_PATTERN (src_viewable),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE,
C_("undo-type", "Drop pattern to layer"));
gimp_image_flush (gimp_item_get_image (GIMP_ITEM (dest_viewable)));
return;
}
GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_viewable (view,
src_viewable,
dest_viewable,
drop_pos);
}
static void
gimp_drawable_tree_view_drop_color (GimpContainerTreeView *view,
const GimpRGB *color,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
if (dest_viewable)
{
gimp_edit_fill_full (gimp_item_get_image (GIMP_ITEM (dest_viewable)),
GIMP_DRAWABLE (dest_viewable),
color, NULL,
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE,
C_("undo-type", "Drop color to layer"));
gimp_image_flush (gimp_item_get_image (GIMP_ITEM (dest_viewable)));
}
}
/* GimpItemTreeView methods */
static void
gimp_drawable_tree_view_set_image (GimpItemTreeView *view,
GimpImage *image)
{
if (gimp_item_tree_view_get_image (view))
g_signal_handlers_disconnect_by_func (gimp_item_tree_view_get_image (view),
gimp_drawable_tree_view_floating_selection_changed,
view);
GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, image);
if (gimp_item_tree_view_get_image (view))
g_signal_connect (gimp_item_tree_view_get_image (view),
"floating-selection-changed",
G_CALLBACK (gimp_drawable_tree_view_floating_selection_changed),
view);
}
/* callbacks */
static void
gimp_drawable_tree_view_floating_selection_changed (GimpImage *image,
GimpDrawableTreeView *view)
{
GimpItem *item;
item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
/* update button states */
gimp_container_view_select_item (GIMP_CONTAINER_VIEW (view),
(GimpViewable *) item);
}
static void
gimp_drawable_tree_view_new_dropped (GimpItemTreeView *view,
gint x,
gint y,
const GimpRGB *color,
GimpPattern *pattern)
{
GimpItem *item;
gimp_image_undo_group_start (gimp_item_tree_view_get_image (view), GIMP_UNDO_GROUP_EDIT_PASTE,
_("New Layer"));
item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->new_item (gimp_item_tree_view_get_image (view));
if (item)
{
gimp_edit_fill_full (gimp_item_get_image (item),
GIMP_DRAWABLE (item),
color, pattern,
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE,
pattern ?
C_("undo-type", "Drop pattern to layer") :
C_("undo-type", "Drop color to layer"));
}
gimp_image_undo_group_end (gimp_item_tree_view_get_image (view));
gimp_image_flush (gimp_item_tree_view_get_image (view));
}
static void
gimp_drawable_tree_view_new_pattern_dropped (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data)
{
gimp_drawable_tree_view_new_dropped (GIMP_ITEM_TREE_VIEW (data), x, y,
NULL, GIMP_PATTERN (viewable));
}
static void
gimp_drawable_tree_view_new_color_dropped (GtkWidget *widget,
gint x,
gint y,
const GimpRGB *color,
gpointer data)
{
gimp_drawable_tree_view_new_dropped (GIMP_ITEM_TREE_VIEW (data), x, y,
color, NULL);
}
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