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-rw-r--r--app/widgets/gimpdrawabletreeview.c393
1 files changed, 393 insertions, 0 deletions
diff --git a/app/widgets/gimpdrawabletreeview.c b/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 <https://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/gimpcontext.h"
+#include "core/gimpdrawable.h"
+#include "core/gimpdrawable-edit.h"
+#include "core/gimpfilloptions.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_icon_name = GIMP_ICON_TOOL_PAINTBRUSH;
+ item_view_class->lock_content_tooltip = _("Lock pixels");
+ item_view_class->lock_position_icon_name = GIMP_ICON_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);
+ GimpImage *image = gimp_item_tree_view_get_image (item_view);
+ gboolean success = TRUE;
+
+ if (image)
+ {
+ GimpLayer *floating_sel = gimp_image_get_floating_selection (image);
+
+ success = (item == NULL ||
+ floating_sel == NULL ||
+ item == GIMP_VIEWABLE (floating_sel));
+
+ if (! success)
+ {
+ Gimp *gimp = image->gimp;
+ GimpContext *context = gimp_get_user_context (gimp);
+ GObject *display = gimp_context_get_display (context);
+
+ gimp_message_literal (gimp, display, GIMP_MESSAGE_WARNING,
+ _("Cannot select item while a floating "
+ "selection is active."));
+ }
+ }
+
+ 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))
+ {
+ GimpImage *image = gimp_item_get_image (GIMP_ITEM (dest_viewable));
+ GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+ gimp_fill_options_set_style (options, GIMP_FILL_STYLE_PATTERN);
+ gimp_context_set_pattern (GIMP_CONTEXT (options),
+ GIMP_PATTERN (src_viewable));
+
+ gimp_drawable_edit_fill (GIMP_DRAWABLE (dest_viewable),
+ options,
+ C_("undo-type", "Drop pattern to layer"));
+
+ g_object_unref (options);
+
+ gimp_image_flush (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)
+ {
+ GimpImage *image = gimp_item_get_image (GIMP_ITEM (dest_viewable));
+ GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+ gimp_fill_options_set_style (options, GIMP_FILL_STYLE_SOLID);
+ gimp_context_set_foreground (GIMP_CONTEXT (options), color);
+
+ gimp_drawable_edit_fill (GIMP_DRAWABLE (dest_viewable),
+ options,
+ C_("undo-type", "Drop color to layer"));
+
+ g_object_unref (options);
+
+ gimp_image_flush (image);
+ }
+}
+
+
+/* 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,
+ GimpFillOptions *options,
+ const gchar *undo_desc)
+{
+ GimpImage *image = gimp_item_tree_view_get_image (view);
+ GimpItem *item;
+
+ gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE,
+ _("New Layer"));
+
+ item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->new_item (image);
+
+ if (item)
+ gimp_drawable_edit_fill (GIMP_DRAWABLE (item), options, undo_desc);
+
+ gimp_image_undo_group_end (image);
+
+ gimp_image_flush (image);
+}
+
+static void
+gimp_drawable_tree_view_new_pattern_dropped (GtkWidget *widget,
+ gint x,
+ gint y,
+ GimpViewable *viewable,
+ gpointer data)
+{
+ GimpItemTreeView *view = GIMP_ITEM_TREE_VIEW (data);
+ GimpImage *image = gimp_item_tree_view_get_image (view);
+ GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+ gimp_fill_options_set_style (options, GIMP_FILL_STYLE_PATTERN);
+ gimp_context_set_pattern (GIMP_CONTEXT (options), GIMP_PATTERN (viewable));
+
+ gimp_drawable_tree_view_new_dropped (view, options,
+ C_("undo-type", "Drop pattern to layer"));
+
+ g_object_unref (options);
+}
+
+static void
+gimp_drawable_tree_view_new_color_dropped (GtkWidget *widget,
+ gint x,
+ gint y,
+ const GimpRGB *color,
+ gpointer data)
+{
+ GimpItemTreeView *view = GIMP_ITEM_TREE_VIEW (data);
+ GimpImage *image = gimp_item_tree_view_get_image (view);
+ GimpFillOptions *options = gimp_fill_options_new (image->gimp, NULL, FALSE);
+
+ gimp_fill_options_set_style (options, GIMP_FILL_STYLE_SOLID);
+ gimp_context_set_foreground (GIMP_CONTEXT (options), color);
+
+ gimp_drawable_tree_view_new_dropped (view, options,
+ C_("undo-type", "Drop color to layer"));
+
+ g_object_unref (options);
+}
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