286 lines
11 KiB
C
286 lines
11 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikavectorstreeview.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 <string.h>
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "core/pika.h"
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#include "core/pikacontainer.h"
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#include "core/pikacontext.h"
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#include "core/pikaimage.h"
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#include "vectors/pikavectors.h"
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#include "vectors/pikavectors-export.h"
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#include "vectors/pikavectors-import.h"
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#include "pikaactiongroup.h"
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#include "pikacontainerview.h"
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#include "pikadnd.h"
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#include "pikahelp-ids.h"
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#include "pikauimanager.h"
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#include "pikavectorstreeview.h"
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#include "pikawidgets-utils.h"
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#include "pika-intl.h"
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static void pika_vectors_tree_view_view_iface_init (PikaContainerViewInterface *iface);
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static void pika_vectors_tree_view_constructed (GObject *object);
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static void pika_vectors_tree_view_set_container (PikaContainerView *view,
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PikaContainer *container);
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static void pika_vectors_tree_view_drop_svg (PikaContainerTreeView *tree_view,
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const gchar *svg_data,
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gsize svg_data_len,
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PikaViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos);
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static PikaItem * pika_vectors_tree_view_item_new (PikaImage *image);
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static guchar * pika_vectors_tree_view_drag_svg (GtkWidget *widget,
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gsize *svg_data_len,
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gpointer data);
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G_DEFINE_TYPE_WITH_CODE (PikaVectorsTreeView, pika_vectors_tree_view,
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PIKA_TYPE_ITEM_TREE_VIEW,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONTAINER_VIEW,
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pika_vectors_tree_view_view_iface_init))
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#define parent_class pika_vectors_tree_view_parent_class
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static PikaContainerViewInterface *parent_view_iface = NULL;
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static void
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pika_vectors_tree_view_class_init (PikaVectorsTreeViewClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaContainerTreeViewClass *view_class = PIKA_CONTAINER_TREE_VIEW_CLASS (klass);
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PikaItemTreeViewClass *iv_class = PIKA_ITEM_TREE_VIEW_CLASS (klass);
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object_class->constructed = pika_vectors_tree_view_constructed;
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view_class->drop_svg = pika_vectors_tree_view_drop_svg;
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iv_class->item_type = PIKA_TYPE_VECTORS;
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iv_class->signal_name = "selected-vectors-changed";
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iv_class->get_container = pika_image_get_vectors;
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iv_class->get_selected_items = (PikaGetItemsFunc) pika_image_get_selected_vectors;
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iv_class->set_selected_items = (PikaSetItemsFunc) pika_image_set_selected_vectors;
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iv_class->add_item = (PikaAddItemFunc) pika_image_add_vectors;
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iv_class->remove_item = (PikaRemoveItemFunc) pika_image_remove_vectors;
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iv_class->new_item = pika_vectors_tree_view_item_new;
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iv_class->action_group = "vectors";
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iv_class->activate_action = "vectors-edit";
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iv_class->new_action = "vectors-new";
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iv_class->new_default_action = "vectors-new-last-values";
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iv_class->raise_action = "vectors-raise";
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iv_class->raise_top_action = "vectors-raise-to-top";
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iv_class->lower_action = "vectors-lower";
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iv_class->lower_bottom_action = "vectors-lower-to-bottom";
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iv_class->duplicate_action = "vectors-duplicate";
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iv_class->delete_action = "vectors-delete";
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iv_class->lock_content_icon_name = PIKA_ICON_TOOL_PATH;
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iv_class->lock_content_tooltip = _("Lock path");
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iv_class->lock_content_help_id = PIKA_HELP_PATH_LOCK_STROKES;
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iv_class->lock_position_icon_name = PIKA_ICON_TOOL_MOVE;
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iv_class->lock_position_tooltip = _("Lock path position");
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iv_class->lock_position_help_id = PIKA_HELP_PATH_LOCK_POSITION;
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}
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static void
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pika_vectors_tree_view_view_iface_init (PikaContainerViewInterface *iface)
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{
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parent_view_iface = g_type_interface_peek_parent (iface);
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iface->set_container = pika_vectors_tree_view_set_container;
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}
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static void
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pika_vectors_tree_view_init (PikaVectorsTreeView *view)
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{
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}
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static void
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pika_vectors_tree_view_constructed (GObject *object)
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{
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PikaEditor *editor = PIKA_EDITOR (object);
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PikaContainerTreeView *tree_view = PIKA_CONTAINER_TREE_VIEW (object);
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PikaVectorsTreeView *view = PIKA_VECTORS_TREE_VIEW (object);
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GdkModifierType extend_mask;
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GdkModifierType modify_mask;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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extend_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
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GDK_MODIFIER_INTENT_EXTEND_SELECTION);
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modify_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
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GDK_MODIFIER_INTENT_MODIFY_SELECTION);
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view->toselection_button =
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pika_editor_add_action_button (editor, "vectors",
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"vectors-selection-replace",
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"vectors-selection-add",
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extend_mask,
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"vectors-selection-subtract",
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modify_mask,
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"vectors-selection-intersect",
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extend_mask | modify_mask,
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NULL);
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pika_container_view_enable_dnd (PIKA_CONTAINER_VIEW (editor),
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GTK_BUTTON (view->toselection_button),
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PIKA_TYPE_VECTORS);
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gtk_box_reorder_child (pika_editor_get_button_box (editor),
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view->toselection_button, 4);
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view->tovectors_button =
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pika_editor_add_action_button (editor, "vectors",
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"vectors-selection-to-vectors",
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"vectors-selection-to-vectors-advanced",
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GDK_SHIFT_MASK,
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NULL);
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gtk_box_reorder_child (pika_editor_get_button_box (editor),
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view->tovectors_button, 5);
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view->stroke_button =
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pika_editor_add_action_button (editor, "vectors",
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"vectors-stroke",
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"vectors-stroke-last-values",
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GDK_SHIFT_MASK,
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NULL);
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pika_container_view_enable_dnd (PIKA_CONTAINER_VIEW (editor),
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GTK_BUTTON (view->stroke_button),
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PIKA_TYPE_VECTORS);
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gtk_box_reorder_child (pika_editor_get_button_box (editor),
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view->stroke_button, 6);
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pika_dnd_svg_dest_add (GTK_WIDGET (tree_view->view), NULL, view);
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}
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static void
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pika_vectors_tree_view_set_container (PikaContainerView *view,
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PikaContainer *container)
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{
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PikaContainerTreeView *tree_view = PIKA_CONTAINER_TREE_VIEW (view);
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PikaContainer *old_container;
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old_container = pika_container_view_get_container (PIKA_CONTAINER_VIEW (view));
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if (old_container && ! container)
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{
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pika_dnd_svg_source_remove (GTK_WIDGET (tree_view->view));
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}
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parent_view_iface->set_container (view, container);
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if (! old_container && container)
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{
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pika_dnd_svg_source_add (GTK_WIDGET (tree_view->view),
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pika_vectors_tree_view_drag_svg,
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tree_view);
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}
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}
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static void
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pika_vectors_tree_view_drop_svg (PikaContainerTreeView *tree_view,
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const gchar *svg_data,
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gsize svg_data_len,
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PikaViewable *dest_viewable,
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GtkTreeViewDropPosition drop_pos)
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{
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PikaItemTreeView *item_view = PIKA_ITEM_TREE_VIEW (tree_view);
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PikaImage *image = pika_item_tree_view_get_image (item_view);
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PikaVectors *parent;
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gint index;
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GError *error = NULL;
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if (image->pika->be_verbose)
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g_print ("%s: SVG dropped (len = %d)\n", G_STRFUNC, (gint) svg_data_len);
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index = pika_item_tree_view_get_drop_index (item_view, dest_viewable,
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drop_pos,
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(PikaViewable **) &parent);
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if (! pika_vectors_import_buffer (image, svg_data, svg_data_len,
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TRUE, FALSE, parent, index, NULL, &error))
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{
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pika_message_literal (image->pika,
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G_OBJECT (tree_view), PIKA_MESSAGE_ERROR,
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error->message);
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g_clear_error (&error);
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}
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else
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{
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pika_image_flush (image);
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}
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}
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static PikaItem *
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pika_vectors_tree_view_item_new (PikaImage *image)
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{
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PikaVectors *new_vectors;
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new_vectors = pika_vectors_new (image, _("Path"));
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pika_image_add_vectors (image, new_vectors,
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PIKA_IMAGE_ACTIVE_PARENT, -1, TRUE);
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return PIKA_ITEM (new_vectors);
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}
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static guchar *
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pika_vectors_tree_view_drag_svg (GtkWidget *widget,
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gsize *svg_data_len,
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gpointer data)
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{
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PikaItemTreeView *view = PIKA_ITEM_TREE_VIEW (data);
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PikaImage *image = pika_item_tree_view_get_image (view);
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GList *items;
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gchar *svg_data = NULL;
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items = PIKA_ITEM_TREE_VIEW_GET_CLASS (view)->get_selected_items (image);
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*svg_data_len = 0;
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if (items)
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{
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svg_data = pika_vectors_export_string (image, items);
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if (svg_data)
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*svg_data_len = strlen (svg_data);
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}
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return (guchar *) svg_data;
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}
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