716 lines
24 KiB
C
716 lines
24 KiB
C
/* 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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* 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 "libpikamath/pikamath.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "tools-types.h"
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#include "config/pikadisplayconfig.h"
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#include "config/pikaguiconfig.h"
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#include "core/pika.h"
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#include "core/pika-cairo.h"
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#include "core/pika-utils.h"
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#include "core/pikaguide.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-pick-item.h"
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#include "core/pikalayer.h"
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#include "core/pikaimage-undo.h"
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#include "core/pikalayermask.h"
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#include "core/pikalayer-floating-selection.h"
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#include "core/pikaundostack.h"
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#include "widgets/pikahelp-ids.h"
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#include "widgets/pikawidgets-utils.h"
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#include "display/pikacanvasitem.h"
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#include "display/pikadisplay.h"
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#include "display/pikadisplayshell.h"
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#include "display/pikadisplayshell-appearance.h"
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#include "display/pikadisplayshell-selection.h"
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#include "display/pikadisplayshell-transform.h"
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#include "pikaeditselectiontool.h"
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#include "pikaguidetool.h"
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#include "pikamoveoptions.h"
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#include "pikamovetool.h"
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#include "pikatoolcontrol.h"
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#include "pikatools-utils.h"
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#include "pika-intl.h"
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/* local function prototypes */
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static void pika_move_tool_finalize (GObject *object);
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static void pika_move_tool_button_press (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonPressType press_type,
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PikaDisplay *display);
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static void pika_move_tool_button_release (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonReleaseType release_type,
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PikaDisplay *display);
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static gboolean pika_move_tool_key_press (PikaTool *tool,
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GdkEventKey *kevent,
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PikaDisplay *display);
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static void pika_move_tool_modifier_key (PikaTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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PikaDisplay *display);
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static void pika_move_tool_oper_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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PikaDisplay *display);
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static void pika_move_tool_cursor_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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PikaDisplay *display);
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static void pika_move_tool_draw (PikaDrawTool *draw_tool);
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G_DEFINE_TYPE (PikaMoveTool, pika_move_tool, PIKA_TYPE_DRAW_TOOL)
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#define parent_class pika_move_tool_parent_class
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void
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pika_move_tool_register (PikaToolRegisterCallback callback,
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gpointer data)
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{
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(* callback) (PIKA_TYPE_MOVE_TOOL,
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PIKA_TYPE_MOVE_OPTIONS,
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pika_move_options_gui,
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0,
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"pika-move-tool",
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C_("tool", "Move"),
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_("Move Tool: Move layers, selections, and other objects"),
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N_("_Move"), "M",
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NULL, PIKA_HELP_TOOL_MOVE,
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PIKA_ICON_TOOL_MOVE,
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data);
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}
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static void
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pika_move_tool_class_init (PikaMoveToolClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
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PikaDrawToolClass *draw_tool_class = PIKA_DRAW_TOOL_CLASS (klass);
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object_class->finalize = pika_move_tool_finalize;
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tool_class->button_press = pika_move_tool_button_press;
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tool_class->button_release = pika_move_tool_button_release;
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tool_class->key_press = pika_move_tool_key_press;
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tool_class->modifier_key = pika_move_tool_modifier_key;
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tool_class->oper_update = pika_move_tool_oper_update;
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tool_class->cursor_update = pika_move_tool_cursor_update;
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draw_tool_class->draw = pika_move_tool_draw;
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}
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static void
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pika_move_tool_init (PikaMoveTool *move_tool)
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{
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PikaTool *tool = PIKA_TOOL (move_tool);
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pika_tool_control_set_snap_to (tool->control, FALSE);
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pika_tool_control_set_handle_empty_image (tool->control, TRUE);
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pika_tool_control_set_tool_cursor (tool->control,
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PIKA_TOOL_CURSOR_MOVE);
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move_tool->floating_layer = NULL;
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move_tool->guides = NULL;
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move_tool->saved_type = PIKA_TRANSFORM_TYPE_LAYER;
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move_tool->old_selected_layers = NULL;
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move_tool->old_selected_vectors = NULL;
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}
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static void
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pika_move_tool_finalize (GObject *object)
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{
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PikaMoveTool *move = PIKA_MOVE_TOOL (object);
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g_clear_pointer (&move->guides, g_list_free);
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g_clear_pointer (&move->old_selected_layers, g_list_free);
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g_clear_pointer (&move->old_selected_vectors, g_list_free);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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pika_move_tool_button_press (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonPressType press_type,
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PikaDisplay *display)
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{
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PikaMoveTool *move = PIKA_MOVE_TOOL (tool);
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PikaMoveOptions *options = PIKA_MOVE_TOOL_GET_OPTIONS (tool);
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PikaDisplayShell *shell = pika_display_get_shell (display);
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PikaImage *image = pika_display_get_image (display);
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PikaItem *active_item = NULL;
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GList *selected_items = NULL;
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GList *iter;
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PikaTranslateMode translate_mode = PIKA_TRANSLATE_MODE_MASK;
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const gchar *null_message = NULL;
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const gchar *locked_message = NULL;
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PikaItem *locked_item = NULL;
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tool->display = display;
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move->floating_layer = NULL;
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g_clear_pointer (&move->guides, g_list_free);
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if (! options->move_current)
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{
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const gint snap_distance = display->config->snap_distance;
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if (options->move_type == PIKA_TRANSFORM_TYPE_PATH)
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{
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PikaVectors *vectors;
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vectors = pika_image_pick_vectors (image,
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coords->x, coords->y,
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FUNSCALEX (shell, snap_distance),
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FUNSCALEY (shell, snap_distance));
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if (vectors)
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{
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GList *new_selected_vectors = g_list_prepend (NULL, vectors);
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move->old_selected_vectors =
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g_list_copy (pika_image_get_selected_vectors (image));
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pika_image_set_selected_vectors (image, new_selected_vectors);
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g_list_free (new_selected_vectors);
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}
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else
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{
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/* no path picked */
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return;
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}
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}
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else if (options->move_type == PIKA_TRANSFORM_TYPE_LAYER)
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{
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GList *guides;
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PikaLayer *layer;
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if (pika_display_shell_get_show_guides (shell) &&
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(guides = pika_image_pick_guides (image,
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coords->x, coords->y,
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FUNSCALEX (shell, snap_distance),
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FUNSCALEY (shell, snap_distance))))
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{
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move->guides = guides;
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pika_guide_tool_start_edit_many (tool, display, guides);
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return;
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}
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else if ((layer = pika_image_pick_layer (image,
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coords->x,
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coords->y,
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NULL)))
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{
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if (pika_image_get_floating_selection (image) &&
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! pika_layer_is_floating_sel (layer))
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{
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/* If there is a floating selection, and this aint it,
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* use the move tool to anchor it.
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*/
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move->floating_layer =
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pika_image_get_floating_selection (image);
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pika_tool_control_activate (tool->control);
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return;
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}
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else
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{
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GList *new_selected_layers = g_list_prepend (NULL, layer);
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move->old_selected_layers = g_list_copy (pika_image_get_selected_layers (image));
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pika_image_set_selected_layers (image, new_selected_layers);
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g_list_free (new_selected_layers);
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}
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}
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else
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{
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/* no guide and no layer picked */
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return;
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}
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}
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}
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switch (options->move_type)
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{
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case PIKA_TRANSFORM_TYPE_PATH:
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{
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selected_items = pika_image_get_selected_vectors (image);
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selected_items = g_list_copy (selected_items);
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translate_mode = PIKA_TRANSLATE_MODE_VECTORS;
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if (! selected_items)
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{
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null_message = _("There are no paths to move.");
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}
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else
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{
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gint n_items = 0;
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for (iter = selected_items; iter; iter = iter->next)
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{
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if (! pika_item_is_position_locked (iter->data, &locked_item))
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n_items++;
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}
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if (n_items == 0)
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locked_message = _("All selected path's position are locked.");
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}
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}
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break;
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case PIKA_TRANSFORM_TYPE_SELECTION:
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{
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active_item = PIKA_ITEM (pika_image_get_mask (image));
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if (pika_channel_is_empty (PIKA_CHANNEL (active_item)))
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active_item = NULL;
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translate_mode = PIKA_TRANSLATE_MODE_MASK;
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if (! active_item)
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{
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/* cannot happen, don't translate this message */
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null_message = "There is no selection to move.";
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}
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else if (pika_item_is_position_locked (active_item, &locked_item))
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{
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locked_message = "The selection's position is locked.";
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}
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}
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break;
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case PIKA_TRANSFORM_TYPE_LAYER:
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{
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selected_items = pika_image_get_selected_drawables (image);
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if (! selected_items)
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{
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null_message = _("There is no layer to move.");
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}
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else if (PIKA_IS_LAYER_MASK (selected_items->data))
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{
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g_return_if_fail (g_list_length (selected_items) == 1);
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translate_mode = PIKA_TRANSLATE_MODE_LAYER_MASK;
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if (pika_item_is_position_locked (selected_items->data, &locked_item))
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locked_message = _("The selected layer's position is locked.");
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else if (pika_item_is_content_locked (selected_items->data, NULL))
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locked_message = _("The selected layer's pixels are locked.");
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}
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else if (PIKA_IS_CHANNEL (selected_items->data))
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{
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translate_mode = PIKA_TRANSLATE_MODE_CHANNEL;
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for (iter = selected_items; iter; iter = iter->next)
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if (pika_item_is_position_locked (iter->data, &locked_item) ||
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pika_item_is_content_locked (iter->data, &locked_item))
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locked_message = _("A selected channel's position or pixels are locked.");
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}
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else
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{
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translate_mode = PIKA_TRANSLATE_MODE_LAYER;
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for (iter = selected_items; iter; iter = iter->next)
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if (pika_item_is_position_locked (iter->data, &locked_item))
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locked_message = _("A selected layer's position is locked.");
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}
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}
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break;
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case PIKA_TRANSFORM_TYPE_IMAGE:
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g_return_if_reached ();
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}
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if (! active_item && ! selected_items)
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{
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pika_tool_message_literal (tool, display, null_message);
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pika_tools_show_tool_options (display->pika);
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pika_widget_blink (options->type_box);
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pika_tool_control (tool, PIKA_TOOL_ACTION_HALT, display);
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return;
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}
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else if (locked_message)
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{
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pika_tool_message_literal (tool, display, locked_message);
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if (locked_item == NULL)
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locked_item = active_item ? active_item : selected_items->data;
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pika_tools_blink_lock_box (display->pika, locked_item);
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pika_tool_control (tool, PIKA_TOOL_ACTION_HALT, display);
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g_list_free (selected_items);
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return;
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}
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pika_tool_control_activate (tool->control);
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pika_edit_selection_tool_start (tool, display, coords,
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translate_mode,
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TRUE);
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g_list_free (selected_items);
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}
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static void
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pika_move_tool_button_release (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonReleaseType release_type,
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PikaDisplay *display)
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{
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PikaMoveTool *move = PIKA_MOVE_TOOL (tool);
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PikaGuiConfig *config = PIKA_GUI_CONFIG (display->pika->config);
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PikaImage *image = pika_display_get_image (display);
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gboolean flush = FALSE;
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pika_tool_control_halt (tool->control);
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if (! config->move_tool_changes_active ||
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(release_type == PIKA_BUTTON_RELEASE_CANCEL))
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{
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if (move->old_selected_layers)
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{
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pika_image_set_selected_layers (image, move->old_selected_layers);
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g_clear_pointer (&move->old_selected_layers, g_list_free);
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flush = TRUE;
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}
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if (move->old_selected_vectors)
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{
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pika_image_set_selected_vectors (image, move->old_selected_vectors);
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g_clear_pointer (&move->old_selected_vectors, g_list_free);
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flush = TRUE;
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}
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}
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if (release_type != PIKA_BUTTON_RELEASE_CANCEL)
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{
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if (move->floating_layer)
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{
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floating_sel_anchor (move->floating_layer);
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flush = TRUE;
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}
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}
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if (flush)
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pika_image_flush (image);
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}
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static gboolean
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pika_move_tool_key_press (PikaTool *tool,
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GdkEventKey *kevent,
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PikaDisplay *display)
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{
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PikaMoveOptions *options = PIKA_MOVE_TOOL_GET_OPTIONS (tool);
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return pika_edit_selection_tool_translate (tool, kevent,
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options->move_type,
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display,
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&options->type_box);
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}
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static void
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pika_move_tool_modifier_key (PikaTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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PikaDisplay *display)
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{
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PikaMoveTool *move = PIKA_MOVE_TOOL (tool);
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PikaMoveOptions *options = PIKA_MOVE_TOOL_GET_OPTIONS (tool);
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if (key == pika_get_extend_selection_mask ())
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{
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g_object_set (options, "move-current", ! options->move_current, NULL);
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}
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else if (key == GDK_MOD1_MASK ||
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key == pika_get_toggle_behavior_mask ())
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{
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PikaTransformType button_type;
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button_type = options->move_type;
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if (press)
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{
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if (key == (state & (GDK_MOD1_MASK |
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pika_get_toggle_behavior_mask ())))
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{
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/* first modifier pressed */
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move->saved_type = options->move_type;
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}
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}
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else
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{
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if (! (state & (GDK_MOD1_MASK |
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pika_get_toggle_behavior_mask ())))
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{
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/* last modifier released */
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button_type = move->saved_type;
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}
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}
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if (state & GDK_MOD1_MASK)
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{
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button_type = PIKA_TRANSFORM_TYPE_SELECTION;
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}
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else if (state & pika_get_toggle_behavior_mask ())
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{
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button_type = PIKA_TRANSFORM_TYPE_PATH;
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}
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if (button_type != options->move_type)
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{
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g_object_set (options, "move-type", button_type, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_move_tool_oper_update (PikaTool *tool,
|
|
const PikaCoords *coords,
|
|
GdkModifierType state,
|
|
gboolean proximity,
|
|
PikaDisplay *display)
|
|
{
|
|
PikaMoveTool *move = PIKA_MOVE_TOOL (tool);
|
|
PikaMoveOptions *options = PIKA_MOVE_TOOL_GET_OPTIONS (tool);
|
|
PikaDisplayShell *shell = pika_display_get_shell (display);
|
|
PikaImage *image = pika_display_get_image (display);
|
|
GList *guides = NULL;
|
|
|
|
if (options->move_type == PIKA_TRANSFORM_TYPE_LAYER &&
|
|
! options->move_current &&
|
|
pika_display_shell_get_show_guides (shell) &&
|
|
proximity)
|
|
{
|
|
gint snap_distance = display->config->snap_distance;
|
|
|
|
guides = pika_image_pick_guides (image, coords->x, coords->y,
|
|
FUNSCALEX (shell, snap_distance),
|
|
FUNSCALEY (shell, snap_distance));
|
|
}
|
|
|
|
if (pika_g_list_compare (guides, move->guides))
|
|
{
|
|
PikaDrawTool *draw_tool = PIKA_DRAW_TOOL (tool);
|
|
|
|
pika_draw_tool_pause (draw_tool);
|
|
|
|
if (pika_draw_tool_is_active (draw_tool) &&
|
|
draw_tool->display != display)
|
|
pika_draw_tool_stop (draw_tool);
|
|
|
|
g_clear_pointer (&move->guides, g_list_free);
|
|
|
|
move->guides = guides;
|
|
|
|
if (! pika_draw_tool_is_active (draw_tool))
|
|
pika_draw_tool_start (draw_tool, display);
|
|
|
|
pika_draw_tool_resume (draw_tool);
|
|
}
|
|
else
|
|
{
|
|
g_list_free (guides);
|
|
}
|
|
}
|
|
|
|
static void
|
|
pika_move_tool_cursor_update (PikaTool *tool,
|
|
const PikaCoords *coords,
|
|
GdkModifierType state,
|
|
PikaDisplay *display)
|
|
{
|
|
PikaMoveOptions *options = PIKA_MOVE_TOOL_GET_OPTIONS (tool);
|
|
PikaDisplayShell *shell = pika_display_get_shell (display);
|
|
PikaImage *image = pika_display_get_image (display);
|
|
PikaCursorType cursor = PIKA_CURSOR_MOUSE;
|
|
PikaToolCursorType tool_cursor = PIKA_TOOL_CURSOR_MOVE;
|
|
PikaCursorModifier modifier = PIKA_CURSOR_MODIFIER_NONE;
|
|
gint snap_distance = display->config->snap_distance;
|
|
|
|
if (options->move_type == PIKA_TRANSFORM_TYPE_PATH)
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_PATHS;
|
|
modifier = PIKA_CURSOR_MODIFIER_MOVE;
|
|
|
|
if (options->move_current)
|
|
{
|
|
GList *selected = pika_image_get_selected_vectors (image);
|
|
GList *iter;
|
|
gint n_items = 0;
|
|
|
|
for (iter = selected; iter; iter = iter->next)
|
|
{
|
|
if (! pika_item_is_position_locked (iter->data, NULL))
|
|
n_items++;
|
|
}
|
|
|
|
if (n_items == 0)
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
}
|
|
else
|
|
{
|
|
if (pika_image_pick_vectors (image,
|
|
coords->x, coords->y,
|
|
FUNSCALEX (shell, snap_distance),
|
|
FUNSCALEY (shell, snap_distance)))
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_HAND;
|
|
}
|
|
else
|
|
{
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
}
|
|
}
|
|
}
|
|
else if (options->move_type == PIKA_TRANSFORM_TYPE_SELECTION)
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_RECT_SELECT;
|
|
modifier = PIKA_CURSOR_MODIFIER_MOVE;
|
|
|
|
if (pika_channel_is_empty (pika_image_get_mask (image)))
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
}
|
|
else if (options->move_current)
|
|
{
|
|
GList *items = pika_image_get_selected_drawables (image);
|
|
GList *iter;
|
|
gint n_items = 0;
|
|
|
|
for (iter = items; iter; iter = iter->next)
|
|
if (! pika_item_is_position_locked (iter->data, NULL))
|
|
n_items++;
|
|
if (n_items == 0)
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
|
|
g_list_free (items);
|
|
}
|
|
else
|
|
{
|
|
PikaLayer *layer;
|
|
|
|
if (pika_display_shell_get_show_guides (shell) &&
|
|
pika_image_pick_guide (image, coords->x, coords->y,
|
|
FUNSCALEX (shell, snap_distance),
|
|
FUNSCALEY (shell, snap_distance)))
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_HAND;
|
|
modifier = PIKA_CURSOR_MODIFIER_MOVE;
|
|
}
|
|
else if ((layer = pika_image_pick_layer (image,
|
|
coords->x, coords->y,
|
|
NULL)))
|
|
{
|
|
/* if there is a floating selection, and this aint it... */
|
|
if (pika_image_get_floating_selection (image) &&
|
|
! pika_layer_is_floating_sel (layer))
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_MOVE;
|
|
modifier = PIKA_CURSOR_MODIFIER_ANCHOR;
|
|
}
|
|
else if (pika_item_is_position_locked (PIKA_ITEM (layer), NULL))
|
|
{
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
}
|
|
else if (! g_list_find (pika_image_get_selected_layers (image), layer))
|
|
{
|
|
tool_cursor = PIKA_TOOL_CURSOR_HAND;
|
|
modifier = PIKA_CURSOR_MODIFIER_MOVE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
modifier = PIKA_CURSOR_MODIFIER_BAD;
|
|
}
|
|
}
|
|
|
|
pika_tool_control_set_cursor (tool->control, cursor);
|
|
pika_tool_control_set_tool_cursor (tool->control, tool_cursor);
|
|
pika_tool_control_set_cursor_modifier (tool->control, modifier);
|
|
|
|
PIKA_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
|
|
}
|
|
|
|
static void
|
|
pika_move_tool_draw (PikaDrawTool *draw_tool)
|
|
{
|
|
PikaMoveTool *move = PIKA_MOVE_TOOL (draw_tool);
|
|
GList *iter;
|
|
|
|
for (iter = move->guides; iter; iter = g_list_next (iter))
|
|
{
|
|
PikaGuide *guide = iter->data;
|
|
PikaCanvasItem *item;
|
|
PikaGuideStyle style;
|
|
|
|
style = pika_guide_get_style (guide);
|
|
|
|
item = pika_draw_tool_add_guide (draw_tool,
|
|
pika_guide_get_orientation (guide),
|
|
pika_guide_get_position (guide),
|
|
style);
|
|
pika_canvas_item_set_highlight (item, TRUE);
|
|
}
|
|
}
|
