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Gimp/app/widgets/gimpvectorstreeview.c
Jehan f7b86c9062 app: fix selection after a drag'n drop move. 
Though it's not finished yet, I am changing "active layer" into
"selected layers" logics. Probably the "active layer" concept will be
back eventually (i.e. even in a multi-selection a specific layer could
be said "active", highlighted in the list a bit differently, hence one
could edit this specific layer only). But for simplicity, for now, it's
better to first get rid of it, otherwise it's just messy.
2020-05-17 18:32:15 +02:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpvectorstreeview.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 <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "vectors/gimpvectors.h"
#include "vectors/gimpvectors-export.h"
#include "vectors/gimpvectors-import.h"
#include "gimpactiongroup.h"
#include "gimpcontainerview.h"
#include "gimpdnd.h"
#include "gimphelp-ids.h"
#include "gimpuimanager.h"
#include "gimpvectorstreeview.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
static void gimp_vectors_tree_view_view_iface_init (GimpContainerViewInterface *iface);
static void gimp_vectors_tree_view_constructed (GObject *object);
static void gimp_vectors_tree_view_set_container (GimpContainerView *view,
GimpContainer *container);
static void gimp_vectors_tree_view_drop_svg (GimpContainerTreeView *tree_view,
const gchar *svg_data,
gsize svg_data_len,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos);
static GimpItem * gimp_vectors_tree_view_item_new (GimpImage *image);
static guchar * gimp_vectors_tree_view_drag_svg (GtkWidget *widget,
gsize *svg_data_len,
gpointer data);
G_DEFINE_TYPE_WITH_CODE (GimpVectorsTreeView, gimp_vectors_tree_view,
GIMP_TYPE_ITEM_TREE_VIEW,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
gimp_vectors_tree_view_view_iface_init))
#define parent_class gimp_vectors_tree_view_parent_class
static GimpContainerViewInterface *parent_view_iface = NULL;
static void
gimp_vectors_tree_view_class_init (GimpVectorsTreeViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpContainerTreeViewClass *view_class = GIMP_CONTAINER_TREE_VIEW_CLASS (klass);
GimpItemTreeViewClass *iv_class = GIMP_ITEM_TREE_VIEW_CLASS (klass);
object_class->constructed = gimp_vectors_tree_view_constructed;
view_class->drop_svg = gimp_vectors_tree_view_drop_svg;
iv_class->item_type = GIMP_TYPE_VECTORS;
iv_class->signal_name = "active-vectors-changed";
iv_class->get_container = gimp_image_get_vectors;
iv_class->get_active_item = (GimpGetItemFunc) gimp_image_get_active_vectors;
iv_class->set_active_item = (GimpSetItemFunc) gimp_image_set_active_vectors;
iv_class->get_selected_items = (GimpGetItemsFunc) gimp_image_get_selected_vectors;
iv_class->add_item = (GimpAddItemFunc) gimp_image_add_vectors;
iv_class->remove_item = (GimpRemoveItemFunc) gimp_image_remove_vectors;
iv_class->new_item = gimp_vectors_tree_view_item_new;
iv_class->action_group = "vectors";
iv_class->activate_action = "vectors-edit";
iv_class->new_action = "vectors-new";
iv_class->new_default_action = "vectors-new-last-values";
iv_class->raise_action = "vectors-raise";
iv_class->raise_top_action = "vectors-raise-to-top";
iv_class->lower_action = "vectors-lower";
iv_class->lower_bottom_action = "vectors-lower-to-bottom";
iv_class->duplicate_action = "vectors-duplicate";
iv_class->delete_action = "vectors-delete";
iv_class->lock_content_icon_name = GIMP_ICON_TOOL_PATH;
iv_class->lock_content_tooltip = _("Lock path strokes");
iv_class->lock_content_help_id = GIMP_HELP_PATH_LOCK_STROKES;
iv_class->lock_position_icon_name = GIMP_ICON_TOOL_MOVE;
iv_class->lock_position_tooltip = _("Lock path position");
iv_class->lock_position_help_id = GIMP_HELP_PATH_LOCK_POSITION;
}
static void
gimp_vectors_tree_view_view_iface_init (GimpContainerViewInterface *iface)
{
parent_view_iface = g_type_interface_peek_parent (iface);
iface->set_container = gimp_vectors_tree_view_set_container;
}
static void
gimp_vectors_tree_view_init (GimpVectorsTreeView *view)
{
}
static void
gimp_vectors_tree_view_constructed (GObject *object)
{
GimpEditor *editor = GIMP_EDITOR (object);
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
GimpVectorsTreeView *view = GIMP_VECTORS_TREE_VIEW (object);
GdkModifierType extend_mask;
GdkModifierType modify_mask;
G_OBJECT_CLASS (parent_class)->constructed (object);
extend_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
GDK_MODIFIER_INTENT_EXTEND_SELECTION);
modify_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
GDK_MODIFIER_INTENT_MODIFY_SELECTION);
view->toselection_button =
gimp_editor_add_action_button (editor, "vectors",
"vectors-selection-replace",
"vectors-selection-add",
extend_mask,
"vectors-selection-subtract",
modify_mask,
"vectors-selection-intersect",
extend_mask | modify_mask,
NULL);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (editor),
GTK_BUTTON (view->toselection_button),
GIMP_TYPE_VECTORS);
gtk_box_reorder_child (gimp_editor_get_button_box (editor),
view->toselection_button, 4);
view->tovectors_button =
gimp_editor_add_action_button (editor, "vectors",
"vectors-selection-to-vectors",
"vectors-selection-to-vectors-advanced",
GDK_SHIFT_MASK,
NULL);
gtk_box_reorder_child (gimp_editor_get_button_box (editor),
view->tovectors_button, 5);
view->stroke_button =
gimp_editor_add_action_button (editor, "vectors",
"vectors-stroke",
"vectors-stroke-last-values",
GDK_SHIFT_MASK,
NULL);
gimp_container_view_enable_dnd (GIMP_CONTAINER_VIEW (editor),
GTK_BUTTON (view->stroke_button),
GIMP_TYPE_VECTORS);
gtk_box_reorder_child (gimp_editor_get_button_box (editor),
view->stroke_button, 6);
gimp_dnd_svg_dest_add (GTK_WIDGET (tree_view->view), NULL, view);
}
static void
gimp_vectors_tree_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
GimpContainer *old_container;
old_container = gimp_container_view_get_container (GIMP_CONTAINER_VIEW (view));
if (old_container && ! container)
{
gimp_dnd_svg_source_remove (GTK_WIDGET (tree_view->view));
}
parent_view_iface->set_container (view, container);
if (! old_container && container)
{
gimp_dnd_svg_source_add (GTK_WIDGET (tree_view->view),
gimp_vectors_tree_view_drag_svg,
tree_view);
}
}
static void
gimp_vectors_tree_view_drop_svg (GimpContainerTreeView *tree_view,
const gchar *svg_data,
gsize svg_data_len,
GimpViewable *dest_viewable,
GtkTreeViewDropPosition drop_pos)
{
GimpItemTreeView *item_view = GIMP_ITEM_TREE_VIEW (tree_view);
GimpImage *image = gimp_item_tree_view_get_image (item_view);
GimpVectors *parent;
gint index;
GError *error = NULL;
if (image->gimp->be_verbose)
g_print ("%s: SVG dropped (len = %d)\n", G_STRFUNC, (gint) svg_data_len);
index = gimp_item_tree_view_get_drop_index (item_view, dest_viewable,
drop_pos,
(GimpViewable **) &parent);
if (! gimp_vectors_import_buffer (image, svg_data, svg_data_len,
TRUE, FALSE, parent, index, NULL, &error))
{
gimp_message_literal (image->gimp,
G_OBJECT (tree_view), GIMP_MESSAGE_ERROR,
error->message);
g_clear_error (&error);
}
else
{
gimp_image_flush (image);
}
}
static GimpItem *
gimp_vectors_tree_view_item_new (GimpImage *image)
{
GimpVectors *new_vectors;
new_vectors = gimp_vectors_new (image, _("Path"));
gimp_image_add_vectors (image, new_vectors,
GIMP_IMAGE_ACTIVE_PARENT, -1, TRUE);
return GIMP_ITEM (new_vectors);
}
static guchar *
gimp_vectors_tree_view_drag_svg (GtkWidget *widget,
gsize *svg_data_len,
gpointer data)
{
GimpItemTreeView *view = GIMP_ITEM_TREE_VIEW (data);
GimpImage *image = gimp_item_tree_view_get_image (view);
GimpItem *item;
gchar *svg_data = NULL;
item = GIMP_ITEM_TREE_VIEW_GET_CLASS (view)->get_active_item (image);
*svg_data_len = 0;
if (item)
{
svg_data = gimp_vectors_export_string (image, GIMP_VECTORS (item));
if (svg_data)
*svg_data_len = strlen (svg_data);
}
return (guchar *) svg_data;
}
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