543 lines
18 KiB
C
543 lines
18 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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* 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 "libpikamath/pikamath.h"
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#include "tools-types.h"
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#include "core/pika.h"
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#include "core/pikaguide.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-guides.h"
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#include "core/pikaimage-undo.h"
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#include "display/pikadisplay.h"
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#include "display/pikadisplayshell.h"
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#include "display/pikadisplayshell-selection.h"
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#include "display/pikadisplayshell-transform.h"
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#include "pikaguidetool.h"
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#include "pikatoolcontrol.h"
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#include "tool_manager.h"
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#include "pika-intl.h"
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#define SWAP_ORIENT(orient) ((orient) == PIKA_ORIENTATION_HORIZONTAL ? \
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PIKA_ORIENTATION_VERTICAL : \
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PIKA_ORIENTATION_HORIZONTAL)
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/* local function prototypes */
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static void pika_guide_tool_finalize (GObject *object);
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static void pika_guide_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 void pika_guide_tool_motion (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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PikaDisplay *display);
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static void pika_guide_tool_draw (PikaDrawTool *draw_tool);
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static void pika_guide_tool_start (PikaTool *parent_tool,
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PikaDisplay *display,
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GList *guides,
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PikaOrientationType orientation);
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static void pika_guide_tool_push_status (PikaGuideTool *guide_tool,
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PikaDisplay *display,
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gboolean remove_guides);
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G_DEFINE_TYPE (PikaGuideTool, pika_guide_tool, PIKA_TYPE_DRAW_TOOL)
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#define parent_class pika_guide_tool_parent_class
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static void
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pika_guide_tool_class_init (PikaGuideToolClass *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_guide_tool_finalize;
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tool_class->button_release = pika_guide_tool_button_release;
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tool_class->motion = pika_guide_tool_motion;
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draw_tool_class->draw = pika_guide_tool_draw;
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}
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static void
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pika_guide_tool_init (PikaGuideTool *guide_tool)
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{
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PikaTool *tool = PIKA_TOOL (guide_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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pika_tool_control_set_scroll_lock (tool->control, TRUE);
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pika_tool_control_set_precision (tool->control,
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PIKA_CURSOR_PRECISION_PIXEL_BORDER);
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guide_tool->guides = NULL;
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guide_tool->n_guides = 0;
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}
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static void
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pika_guide_tool_finalize (GObject *object)
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{
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PikaGuideTool *guide_tool = PIKA_GUIDE_TOOL (object);
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gint i;
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for (i = 0; i < guide_tool->n_guides; i++)
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g_clear_object (&guide_tool->guides[i].guide);
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g_free (guide_tool->guides);
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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_guide_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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PikaGuideTool *guide_tool = PIKA_GUIDE_TOOL (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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gint i;
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pika_tool_pop_status (tool, display);
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pika_tool_control_halt (tool->control);
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pika_draw_tool_stop (PIKA_DRAW_TOOL (tool));
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if (release_type == PIKA_BUTTON_RELEASE_CANCEL)
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{
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuideToolGuide *guide = &guide_tool->guides[i];
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/* custom guides are moved live */
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if (guide->custom)
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{
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pika_image_move_guide (image, guide->guide, guide->old_position,
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TRUE);
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}
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}
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}
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else
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{
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gint n_non_custom_guides = 0;
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gboolean remove_guides = FALSE;
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuideToolGuide *guide = &guide_tool->guides[i];
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n_non_custom_guides += ! guide->custom;
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if (guide->position == PIKA_GUIDE_POSITION_UNDEFINED)
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{
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remove_guides = TRUE;
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}
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}
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if (n_non_custom_guides > 1)
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{
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pika_image_undo_group_start (image, PIKA_UNDO_GROUP_GUIDE,
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remove_guides ?
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C_("undo-type", "Remove Guides") :
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C_("undo-type", "Move Guides"));
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}
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuideToolGuide *guide = &guide_tool->guides[i];
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if (remove_guides)
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{
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/* removing a guide can cause other guides to be removed as well
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* (in particular, in case of symmetry guides). these guides
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* will be kept alive, since we hold a reference on them, but we
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* need to make sure that they're still part of the image.
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*/
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if (g_list_find (pika_image_get_guides (image), guide->guide))
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pika_image_remove_guide (image, guide->guide, TRUE);
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}
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else
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{
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if (guide->guide)
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{
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/* custom guides are moved live */
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if (! guide->custom)
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{
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pika_image_move_guide (image, guide->guide,
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guide->position, TRUE);
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}
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}
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else
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{
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switch (guide->orientation)
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{
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case PIKA_ORIENTATION_HORIZONTAL:
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pika_image_add_hguide (image,
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guide->position,
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TRUE);
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break;
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case PIKA_ORIENTATION_VERTICAL:
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pika_image_add_vguide (image,
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guide->position,
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TRUE);
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break;
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default:
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pika_assert_not_reached ();
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}
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}
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}
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}
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if (n_non_custom_guides > 1)
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pika_image_undo_group_end (image);
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pika_image_flush (image);
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}
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pika_display_shell_selection_resume (shell);
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tool_manager_pop_tool (display->pika);
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g_object_unref (guide_tool);
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{
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PikaTool *active_tool = tool_manager_get_active (display->pika);
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if (PIKA_IS_DRAW_TOOL (active_tool))
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pika_draw_tool_pause (PIKA_DRAW_TOOL (active_tool));
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tool_manager_oper_update_active (display->pika, coords, state,
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TRUE, display);
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tool_manager_cursor_update_active (display->pika, coords, state,
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display);
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if (PIKA_IS_DRAW_TOOL (active_tool))
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pika_draw_tool_resume (PIKA_DRAW_TOOL (active_tool));
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}
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}
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static void
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pika_guide_tool_motion (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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PikaDisplay *display)
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{
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PikaGuideTool *guide_tool = PIKA_GUIDE_TOOL (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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gboolean remove_guides = FALSE;
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gint tx, ty;
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gint i;
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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pika_display_shell_transform_xy (shell,
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coords->x, coords->y,
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&tx, &ty);
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuideToolGuide *guide = &guide_tool->guides[i];
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gint max_position;
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gint position;
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if (guide->orientation == PIKA_ORIENTATION_HORIZONTAL)
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max_position = pika_image_get_height (image);
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else
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max_position = pika_image_get_width (image);
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if (guide->orientation == PIKA_ORIENTATION_HORIZONTAL)
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guide->position = RINT (coords->y);
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else
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guide->position = RINT (coords->x);
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position = CLAMP (guide->position, 0, max_position);
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if (tx < 0 || tx >= shell->disp_width ||
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ty < 0 || ty >= shell->disp_height)
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{
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guide->position = PIKA_GUIDE_POSITION_UNDEFINED;
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remove_guides = TRUE;
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}
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else
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{
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if (guide->position < 0 || guide->position > max_position)
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remove_guides = TRUE;
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}
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/* custom guides are moved live */
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if (guide->custom)
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pika_image_move_guide (image, guide->guide, position, TRUE);
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}
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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pika_tool_pop_status (tool, display);
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pika_guide_tool_push_status (guide_tool, display, remove_guides);
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}
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static void
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pika_guide_tool_draw (PikaDrawTool *draw_tool)
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{
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PikaGuideTool *guide_tool = PIKA_GUIDE_TOOL (draw_tool);
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gint i;
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuideToolGuide *guide = &guide_tool->guides[i];
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if (guide->position != PIKA_GUIDE_POSITION_UNDEFINED)
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{
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/* custom guides are moved live */
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if (! guide->custom)
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{
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pika_draw_tool_add_guide (draw_tool,
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guide->orientation,
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guide->position,
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PIKA_GUIDE_STYLE_NONE);
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}
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}
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}
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}
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static void
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pika_guide_tool_start (PikaTool *parent_tool,
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PikaDisplay *display,
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GList *guides,
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PikaOrientationType orientation)
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{
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PikaGuideTool *guide_tool;
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PikaTool *tool;
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guide_tool = g_object_new (PIKA_TYPE_GUIDE_TOOL,
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"tool-info", parent_tool->tool_info,
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NULL);
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tool = PIKA_TOOL (guide_tool);
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pika_display_shell_selection_pause (pika_display_get_shell (display));
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if (guides)
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{
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gint i;
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guide_tool->n_guides = g_list_length (guides);
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guide_tool->guides = g_new (PikaGuideToolGuide, guide_tool->n_guides);
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for (i = 0; i < guide_tool->n_guides; i++)
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{
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PikaGuide *guide = guides->data;
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guide_tool->guides[i].guide = g_object_ref (guide);
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|
|
guide_tool->guides[i].old_position = pika_guide_get_position (guide);
|
||
|
|
guide_tool->guides[i].position = pika_guide_get_position (guide);
|
||
|
|
guide_tool->guides[i].orientation = pika_guide_get_orientation (guide);
|
||
|
|
guide_tool->guides[i].custom = pika_guide_is_custom (guide);
|
||
|
|
|
||
|
|
guides = g_list_next (guides);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
guide_tool->n_guides = 1;
|
||
|
|
guide_tool->guides = g_new (PikaGuideToolGuide, 1);
|
||
|
|
|
||
|
|
guide_tool->guides[0].guide = NULL;
|
||
|
|
guide_tool->guides[0].old_position = 0;
|
||
|
|
guide_tool->guides[0].position = PIKA_GUIDE_POSITION_UNDEFINED;
|
||
|
|
guide_tool->guides[0].orientation = orientation;
|
||
|
|
guide_tool->guides[0].custom = FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
pika_tool_set_cursor (tool, display,
|
||
|
|
PIKA_CURSOR_MOUSE,
|
||
|
|
PIKA_TOOL_CURSOR_HAND,
|
||
|
|
PIKA_CURSOR_MODIFIER_MOVE);
|
||
|
|
|
||
|
|
tool_manager_push_tool (display->pika, tool);
|
||
|
|
|
||
|
|
tool->display = display;
|
||
|
|
pika_tool_control_activate (tool->control);
|
||
|
|
|
||
|
|
pika_draw_tool_start (PIKA_DRAW_TOOL (guide_tool), display);
|
||
|
|
|
||
|
|
pika_guide_tool_push_status (guide_tool, display, FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_guide_tool_push_status (PikaGuideTool *guide_tool,
|
||
|
|
PikaDisplay *display,
|
||
|
|
gboolean remove_guides)
|
||
|
|
{
|
||
|
|
PikaTool *tool = PIKA_TOOL (guide_tool);
|
||
|
|
|
||
|
|
if (remove_guides)
|
||
|
|
{
|
||
|
|
pika_tool_push_status (tool, display,
|
||
|
|
guide_tool->n_guides > 1 ? _("Remove Guides") :
|
||
|
|
guide_tool->guides[0].guide ? _("Remove Guide") :
|
||
|
|
_("Cancel Guide"));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
PikaGuideToolGuide *guides[2] = { 0, };
|
||
|
|
gint n_guides = 0;
|
||
|
|
gint i;
|
||
|
|
|
||
|
|
for (i = 0; i < guide_tool->n_guides; i++)
|
||
|
|
{
|
||
|
|
PikaGuideToolGuide *guide = &guide_tool->guides[i];
|
||
|
|
|
||
|
|
if (guide_tool->guides[i].guide)
|
||
|
|
{
|
||
|
|
if (n_guides == 0 || guide->orientation != guides[0]->orientation)
|
||
|
|
{
|
||
|
|
guides[n_guides++] = guide;
|
||
|
|
|
||
|
|
if (n_guides == 2)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (n_guides == 2 &&
|
||
|
|
guides[0]->orientation == PIKA_ORIENTATION_HORIZONTAL)
|
||
|
|
{
|
||
|
|
PikaGuideToolGuide *temp;
|
||
|
|
|
||
|
|
temp = guides[0];
|
||
|
|
guides[0] = guides[1];
|
||
|
|
guides[1] = temp;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (n_guides == 1)
|
||
|
|
{
|
||
|
|
pika_tool_push_status_length (tool, display,
|
||
|
|
_("Move Guide: "),
|
||
|
|
SWAP_ORIENT (guides[0]->orientation),
|
||
|
|
guides[0]->position -
|
||
|
|
guides[0]->old_position,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
else if (n_guides == 2)
|
||
|
|
{
|
||
|
|
pika_tool_push_status_coords (tool, display,
|
||
|
|
PIKA_CURSOR_PRECISION_PIXEL_BORDER,
|
||
|
|
_("Move Guides: "),
|
||
|
|
guides[0]->position -
|
||
|
|
guides[0]->old_position,
|
||
|
|
", ",
|
||
|
|
guides[1]->position -
|
||
|
|
guides[1]->old_position,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pika_tool_push_status_length (tool, display,
|
||
|
|
_("Add Guide: "),
|
||
|
|
SWAP_ORIENT (guide_tool->guides[0].orientation),
|
||
|
|
guide_tool->guides[0].position,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* public functions */
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_guide_tool_start_new (PikaTool *parent_tool,
|
||
|
|
PikaDisplay *display,
|
||
|
|
PikaOrientationType orientation)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TOOL (parent_tool));
|
||
|
|
g_return_if_fail (PIKA_IS_DISPLAY (display));
|
||
|
|
g_return_if_fail (orientation != PIKA_ORIENTATION_UNKNOWN);
|
||
|
|
|
||
|
|
pika_guide_tool_start (parent_tool, display,
|
||
|
|
NULL, orientation);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_guide_tool_start_edit (PikaTool *parent_tool,
|
||
|
|
PikaDisplay *display,
|
||
|
|
PikaGuide *guide)
|
||
|
|
{
|
||
|
|
GList *guides = NULL;
|
||
|
|
|
||
|
|
g_return_if_fail (PIKA_IS_TOOL (parent_tool));
|
||
|
|
g_return_if_fail (PIKA_IS_DISPLAY (display));
|
||
|
|
g_return_if_fail (PIKA_IS_GUIDE (guide));
|
||
|
|
|
||
|
|
guides = g_list_append (guides, guide);
|
||
|
|
|
||
|
|
pika_guide_tool_start (parent_tool, display,
|
||
|
|
guides, PIKA_ORIENTATION_UNKNOWN);
|
||
|
|
|
||
|
|
g_list_free (guides);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_guide_tool_start_edit_many (PikaTool *parent_tool,
|
||
|
|
PikaDisplay *display,
|
||
|
|
GList *guides)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_TOOL (parent_tool));
|
||
|
|
g_return_if_fail (PIKA_IS_DISPLAY (display));
|
||
|
|
g_return_if_fail (guides != NULL);
|
||
|
|
|
||
|
|
pika_guide_tool_start (parent_tool, display,
|
||
|
|
guides, PIKA_ORIENTATION_UNKNOWN);
|
||
|
|
}
|
