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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) 2001-2003 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/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawable-bucket-fill.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimppattern.h"
#include "core/gimptoolinfo.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 GObject * gimp_drawable_tree_view_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
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,
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->constructor = gimp_drawable_tree_view_constructor;
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;
}
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 GObject *
gimp_drawable_tree_view_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GimpContainerTreeView *tree_view;
GimpItemTreeView *item_view;
GObject *object;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
tree_view = GIMP_CONTAINER_TREE_VIEW (object);
item_view = GIMP_ITEM_TREE_VIEW (object);
gimp_dnd_viewable_dest_add (item_view->new_button, GIMP_TYPE_PATTERN,
gimp_drawable_tree_view_new_pattern_dropped,
item_view);
gimp_dnd_color_dest_add (item_view->new_button,
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);
return object;
}
/* 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 (item_view->image)
{
GimpLayer *floating_sel = gimp_image_floating_sel (item_view->image);
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,
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_pos,
return_drop_pos,
return_drag_action))
{
if (src_type == GIMP_DND_TYPE_COLOR ||
src_type == GIMP_DND_TYPE_PATTERN)
{
if (! dest_viewable)
return FALSE;
if (return_drop_pos)
{
if (drop_pos == GTK_TREE_VIEW_DROP_BEFORE)
*return_drop_pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
else
*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_drawable_bucket_fill_full (GIMP_DRAWABLE (dest_viewable),
GIMP_PATTERN_BUCKET_FILL,
GIMP_NORMAL_MODE, GIMP_OPACITY_OPAQUE,
FALSE, /* no seed fill */
FALSE, /* don't fill transp */
GIMP_SELECT_CRITERION_COMPOSITE,
0.0, FALSE, /* fill params */
0.0, 0.0, /* ignored */
NULL, GIMP_PATTERN (src_viewable));
gimp_image_flush (GIMP_ITEM_TREE_VIEW (view)->image);
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_drawable_bucket_fill_full (GIMP_DRAWABLE (dest_viewable),
GIMP_FG_BUCKET_FILL,
GIMP_NORMAL_MODE, GIMP_OPACITY_OPAQUE,
FALSE, /* no seed fill */
FALSE, /* don't fill transp */
GIMP_SELECT_CRITERION_COMPOSITE,
0.0, FALSE, /* fill params */
0.0, 0.0, /* ignored */
color, NULL);
gimp_image_flush (GIMP_ITEM_TREE_VIEW (view)->image);
}
}
/* GimpItemTreeView methods */
static void
gimp_drawable_tree_view_set_image (GimpItemTreeView *view,
GimpImage *image)
{
if (view->image)
g_signal_handlers_disconnect_by_func (view->image,
gimp_drawable_tree_view_floating_selection_changed,
view);
GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, image);
if (view->image)
g_signal_connect (view->image,
"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,
GimpBucketFillMode fill_mode,
const GimpRGB *color,
GimpPattern *pattern)
{
GimpItem *item;
gimp_image_undo_group_start (view->image, GIMP_UNDO_GROUP_EDIT_PASTE,
_("New Layer"));
item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->new_item (view->image);
if (item)
{
/* Get the bucket fill context */
GimpContext *context;
GimpToolInfo *tool_info = gimp_get_tool_info (view->image->gimp,
"gimp-bucket-fill-tool");
if (tool_info && tool_info->tool_options)
context = GIMP_CONTEXT (tool_info->tool_options);
else
context = gimp_container_view_get_context (GIMP_CONTAINER_VIEW (view));
gimp_drawable_bucket_fill_full (GIMP_DRAWABLE (item),
fill_mode,
gimp_context_get_paint_mode (context),
gimp_context_get_opacity (context),
FALSE, /* no seed fill */
FALSE, /* don't fill transp */
GIMP_SELECT_CRITERION_COMPOSITE,
0.0, FALSE, 0.0, 0.0 /* fill params */,
color, pattern);
}
gimp_image_undo_group_end (view->image);
gimp_image_flush (view->image);
}
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,
GIMP_PATTERN_BUCKET_FILL,
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,
GIMP_FG_BUCKET_FILL,
color,
NULL);
}
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