mirror of https://github.com/GNOME/gimp.git
401 lines
16 KiB
C
401 lines
16 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpdrawabletreeview.c
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* Copyright (C) 2001-2009 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "widgets-types.h"
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#include "core/gimp.h"
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#include "core/gimpcontext.h"
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#include "core/gimpdrawable.h"
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#include "core/gimpdrawable-edit.h"
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#include "core/gimpfilloptions.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-undo.h"
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#include "core/gimppattern.h"
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#include "gimpcontainerview.h"
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#include "gimpdnd.h"
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#include "gimpdrawabletreeview.h"
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#include "gimp-intl.h"
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static void gimp_drawable_tree_view_view_iface_init (GimpContainerViewInterface *iface);
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static void gimp_drawable_tree_view_constructed (GObject *object);
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static gboolean gimp_drawable_tree_view_select_item (GimpContainerView *view,
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GimpViewable *item,
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gpointer insert_data);
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static gboolean gimp_drawable_tree_view_drop_possible(GimpContainerTreeView *view,
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GimpDndType src_type,
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GList *src_viewables,
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GimpViewable *dest_viewable,
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GtkTreePath *drop_path,
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GtkTreeViewDropPosition drop_pos,
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GtkTreeViewDropPosition *return_drop_pos,
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GdkDragAction *return_drag_action);
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static void gimp_drawable_tree_view_drop_viewables (GimpContainerTreeView *view,
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GList *src_viewables,
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GimpViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos);
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static void gimp_drawable_tree_view_drop_color (GimpContainerTreeView *view,
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const GimpRGB *color,
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GimpViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos);
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static void gimp_drawable_tree_view_set_image (GimpItemTreeView *view,
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GimpImage *image);
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static void gimp_drawable_tree_view_floating_selection_changed
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(GimpImage *image,
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GimpDrawableTreeView *view);
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static void gimp_drawable_tree_view_new_pattern_dropped
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(GtkWidget *widget,
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gint x,
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gint y,
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GimpViewable *viewable,
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gpointer data);
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static void gimp_drawable_tree_view_new_color_dropped
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(GtkWidget *widget,
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gint x,
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gint y,
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const GimpRGB *color,
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gpointer data);
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G_DEFINE_TYPE_WITH_CODE (GimpDrawableTreeView, gimp_drawable_tree_view,
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GIMP_TYPE_ITEM_TREE_VIEW,
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G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
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gimp_drawable_tree_view_view_iface_init))
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#define parent_class gimp_drawable_tree_view_parent_class
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static GimpContainerViewInterface *parent_view_iface = NULL;
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static void
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gimp_drawable_tree_view_class_init (GimpDrawableTreeViewClass *klass)
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{
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GObjectClass *object_class;
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GimpContainerTreeViewClass *tree_view_class;
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GimpItemTreeViewClass *item_view_class;
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object_class = G_OBJECT_CLASS (klass);
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tree_view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
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item_view_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
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object_class->constructed = gimp_drawable_tree_view_constructed;
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tree_view_class->drop_possible = gimp_drawable_tree_view_drop_possible;
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tree_view_class->drop_viewables = gimp_drawable_tree_view_drop_viewables;
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tree_view_class->drop_color = gimp_drawable_tree_view_drop_color;
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item_view_class->set_image = gimp_drawable_tree_view_set_image;
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item_view_class->lock_content_icon_name = GIMP_ICON_TOOL_PAINTBRUSH;
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item_view_class->lock_content_tooltip = _("Lock pixels");
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item_view_class->lock_position_icon_name = GIMP_ICON_TOOL_MOVE;
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item_view_class->lock_position_tooltip = _("Lock position and size");
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}
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static void
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gimp_drawable_tree_view_view_iface_init (GimpContainerViewInterface *iface)
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{
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parent_view_iface = g_type_interface_peek_parent (iface);
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iface->select_item = gimp_drawable_tree_view_select_item;
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}
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static void
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gimp_drawable_tree_view_init (GimpDrawableTreeView *view)
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{
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}
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static void
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gimp_drawable_tree_view_constructed (GObject *object)
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{
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GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
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GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (object);
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G_OBJECT_CLASS (parent_class)->constructed (object);
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gimp_dnd_viewable_dest_add (gimp_item_tree_view_get_new_button (item_view),
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GIMP_TYPE_PATTERN,
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gimp_drawable_tree_view_new_pattern_dropped,
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item_view);
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gimp_dnd_color_dest_add (gimp_item_tree_view_get_new_button (item_view),
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gimp_drawable_tree_view_new_color_dropped,
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item_view);
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gimp_dnd_color_dest_add (GTK_WIDGET (tree_view->view),
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NULL, tree_view);
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gimp_dnd_viewable_dest_add (GTK_WIDGET (tree_view->view), GIMP_TYPE_PATTERN,
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NULL, tree_view);
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}
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/* GimpContainerView methods */
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static gboolean
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gimp_drawable_tree_view_select_item (GimpContainerView *view,
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GimpViewable *item,
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gpointer insert_data)
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{
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GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (view);
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GimpImage *image = gimp_item_tree_view_get_image (item_view);
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gboolean success = TRUE;
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if (image)
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{
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GimpLayer *floating_sel = gimp_image_get_floating_selection (image);
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success = (item == NULL ||
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floating_sel == NULL ||
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item == GIMP_VIEWABLE (floating_sel));
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if (! success)
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{
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Gimp *gimp = image->gimp;
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GimpContext *context = gimp_get_user_context (gimp);
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GimpDisplay *display = gimp_context_get_display (context);
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gimp_message_literal (gimp, G_OBJECT (display), GIMP_MESSAGE_WARNING,
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_("Cannot select item while a floating "
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"selection is active."));
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}
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}
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if (success)
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success = parent_view_iface->select_item (view, item, insert_data);
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return success;
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}
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/* GimpContainerTreeView methods */
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static gboolean
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gimp_drawable_tree_view_drop_possible (GimpContainerTreeView *tree_view,
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GimpDndType src_type,
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GList *src_viewables,
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GimpViewable *dest_viewable,
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GtkTreePath *drop_path,
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GtkTreeViewDropPosition drop_pos,
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GtkTreeViewDropPosition *return_drop_pos,
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GdkDragAction *return_drag_action)
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{
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if (GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_possible (tree_view,
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src_type,
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src_viewables,
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dest_viewable,
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drop_path,
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drop_pos,
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return_drop_pos,
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return_drag_action))
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{
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if (src_type == GIMP_DND_TYPE_COLOR ||
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src_type == GIMP_DND_TYPE_PATTERN)
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{
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if (! dest_viewable ||
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gimp_item_is_content_locked (GIMP_ITEM (dest_viewable)) ||
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gimp_viewable_get_children (GIMP_VIEWABLE (dest_viewable)))
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return FALSE;
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if (return_drop_pos)
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{
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*return_drop_pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
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}
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}
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return TRUE;
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}
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return FALSE;
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}
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static void
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gimp_drawable_tree_view_drop_viewables (GimpContainerTreeView *view,
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GList *src_viewables,
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GimpViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos)
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{
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GList *iter;
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for (iter = src_viewables; iter; iter = iter->next)
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{
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GimpViewable *src_viewable = iter->data;
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if (dest_viewable && GIMP_IS_PATTERN (src_viewable))
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{
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (dest_viewable));
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GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
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gimp_fill_options_set_style (options, GIMP_FILL_STYLE_PATTERN);
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gimp_context_set_pattern (GIMP_CONTEXT (options),
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GIMP_PATTERN (src_viewable));
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gimp_drawable_edit_fill (GIMP_DRAWABLE (dest_viewable),
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options,
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C_("undo-type", "Drop pattern to layer"));
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g_object_unref (options);
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gimp_image_flush (image);
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return;
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}
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}
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GIMP_CONTAINER_TREE_VIEW_CLASS (parent_class)->drop_viewables (view,
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src_viewables,
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dest_viewable,
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drop_pos);
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}
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static void
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gimp_drawable_tree_view_drop_color (GimpContainerTreeView *view,
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const GimpRGB *color,
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GimpViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos)
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{
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if (dest_viewable)
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{
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GimpImage *image = gimp_item_get_image (GIMP_ITEM (dest_viewable));
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GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
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gimp_fill_options_set_style (options, GIMP_FILL_STYLE_SOLID);
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gimp_context_set_foreground (GIMP_CONTEXT (options), color);
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gimp_drawable_edit_fill (GIMP_DRAWABLE (dest_viewable),
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options,
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C_("undo-type", "Drop color to layer"));
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g_object_unref (options);
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gimp_image_flush (image);
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}
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}
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/* GimpItemTreeView methods */
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static void
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gimp_drawable_tree_view_set_image (GimpItemTreeView *view,
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GimpImage *image)
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{
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if (gimp_item_tree_view_get_image (view))
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g_signal_handlers_disconnect_by_func (gimp_item_tree_view_get_image (view),
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gimp_drawable_tree_view_floating_selection_changed,
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view);
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GIMP_ITEM_TREE_VIEW_CLASS (parent_class)->set_image (view, image);
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if (gimp_item_tree_view_get_image (view))
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g_signal_connect (gimp_item_tree_view_get_image (view),
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"floating-selection-changed",
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G_CALLBACK (gimp_drawable_tree_view_floating_selection_changed),
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view);
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}
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/* callbacks */
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static void
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gimp_drawable_tree_view_floating_selection_changed (GimpImage *image,
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GimpDrawableTreeView *view)
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{
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GimpItem *item;
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item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
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/* update button states */
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gimp_container_view_select_item (GIMP_CONTAINER_VIEW (view),
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(GimpViewable *) item);
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}
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static void
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gimp_drawable_tree_view_new_dropped (GimpItemTreeView *view,
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GimpFillOptions *options,
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const gchar *undo_desc)
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{
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GimpImage *image = gimp_item_tree_view_get_image (view);
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GimpItem *item;
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
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_("New Layer"));
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item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->new_item (image);
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if (item)
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gimp_drawable_edit_fill (GIMP_DRAWABLE (item), options, undo_desc);
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gimp_image_undo_group_end (image);
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gimp_image_flush (image);
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}
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static void
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gimp_drawable_tree_view_new_pattern_dropped (GtkWidget *widget,
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gint x,
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gint y,
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GimpViewable *viewable,
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gpointer data)
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{
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GimpItemTreeView *view = GIMP_ITEM_TREE_VIEW (data);
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GimpImage *image = gimp_item_tree_view_get_image (view);
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GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
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gimp_fill_options_set_style (options, GIMP_FILL_STYLE_PATTERN);
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gimp_context_set_pattern (GIMP_CONTEXT (options), GIMP_PATTERN (viewable));
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gimp_drawable_tree_view_new_dropped (view, options,
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C_("undo-type", "Drop pattern to layer"));
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g_object_unref (options);
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}
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static void
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gimp_drawable_tree_view_new_color_dropped (GtkWidget *widget,
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gint x,
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gint y,
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const GimpRGB *color,
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gpointer data)
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{
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GimpItemTreeView *view = GIMP_ITEM_TREE_VIEW (data);
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GimpImage *image = gimp_item_tree_view_get_image (view);
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GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
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gimp_fill_options_set_style (options, GIMP_FILL_STYLE_SOLID);
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gimp_context_set_foreground (GIMP_CONTEXT (options), color);
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gimp_drawable_tree_view_new_dropped (view, options,
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C_("undo-type", "Drop color to layer"));
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g_object_unref (options);
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}
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