mirror of https://github.com/GNOME/gimp.git
845 lines
29 KiB
C
845 lines
29 KiB
C
/* GIMP - The GNU Image Manipulation Program
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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 <http://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 <gdk/gdkkeysyms.h>
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#include "libgimpmath/gimpmath.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "config/gimpdisplayconfig.h"
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#include "core/gimp.h"
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#include "core/gimpguide.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-arrange.h"
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#include "core/gimpimage-guides.h"
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#include "core/gimpimage-pick-layer.h"
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#include "core/gimpimage-undo.h"
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#include "core/gimplayer.h"
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#include "vectors/gimpvectors.h"
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#include "widgets/gimphelp-ids.h"
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#include "widgets/gimpwidgets-utils.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplayshell.h"
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#include "display/gimpdisplayshell-appearance.h"
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#include "gimpalignoptions.h"
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#include "gimpaligntool.h"
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#include "gimptoolcontrol.h"
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#include "gimp-intl.h"
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#define EPSILON 3 /* move distance after which we do a box-select */
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/* local function prototypes */
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static void gimp_align_tool_constructed (GObject *object);
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static void gimp_align_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display);
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static void gimp_align_tool_button_press (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonPressType press_type,
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GimpDisplay *display);
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static void gimp_align_tool_button_release (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonReleaseType release_type,
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GimpDisplay *display);
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static void gimp_align_tool_motion (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display);
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static gboolean gimp_align_tool_key_press (GimpTool *tool,
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GdkEventKey *kevent,
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GimpDisplay *display);
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static void gimp_align_tool_oper_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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GimpDisplay *display);
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static void gimp_align_tool_status_update (GimpTool *tool,
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GimpDisplay *display,
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GdkModifierType state,
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gboolean proximity);
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static void gimp_align_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_align_tool_draw (GimpDrawTool *draw_tool);
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static void gimp_align_tool_align (GimpAlignTool *align_tool,
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GimpAlignmentType align_type);
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static void gimp_align_tool_object_removed (GObject *object,
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GimpAlignTool *align_tool);
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static void gimp_align_tool_clear_selected (GimpAlignTool *align_tool);
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G_DEFINE_TYPE (GimpAlignTool, gimp_align_tool, GIMP_TYPE_DRAW_TOOL)
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#define parent_class gimp_align_tool_parent_class
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void
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gimp_align_tool_register (GimpToolRegisterCallback callback,
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gpointer data)
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{
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(* callback) (GIMP_TYPE_ALIGN_TOOL,
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GIMP_TYPE_ALIGN_OPTIONS,
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gimp_align_options_gui,
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0,
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"gimp-align-tool",
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_("Align"),
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_("Alignment Tool: Align or arrange layers and other objects"),
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N_("_Align"), "Q",
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NULL, GIMP_HELP_TOOL_ALIGN,
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GIMP_STOCK_TOOL_ALIGN,
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data);
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}
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static void
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gimp_align_tool_class_init (GimpAlignToolClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
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GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
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object_class->constructed = gimp_align_tool_constructed;
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tool_class->control = gimp_align_tool_control;
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tool_class->button_press = gimp_align_tool_button_press;
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tool_class->button_release = gimp_align_tool_button_release;
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tool_class->motion = gimp_align_tool_motion;
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tool_class->key_press = gimp_align_tool_key_press;
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tool_class->oper_update = gimp_align_tool_oper_update;
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tool_class->cursor_update = gimp_align_tool_cursor_update;
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draw_tool_class->draw = gimp_align_tool_draw;
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}
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static void
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gimp_align_tool_init (GimpAlignTool *align_tool)
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{
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GimpTool *tool = GIMP_TOOL (align_tool);
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gimp_tool_control_set_snap_to (tool->control, FALSE);
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gimp_tool_control_set_precision (tool->control,
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GIMP_CURSOR_PRECISION_PIXEL_BORDER);
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gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_MOVE);
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align_tool->function = ALIGN_TOOL_IDLE;
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}
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static void
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gimp_align_tool_constructed (GObject *object)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (object);
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GimpAlignOptions *options;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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options = GIMP_ALIGN_TOOL_GET_OPTIONS (align_tool);
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g_signal_connect_object (options, "align-button-clicked",
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G_CALLBACK (gimp_align_tool_align),
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align_tool, G_CONNECT_SWAPPED);
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}
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static void
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gimp_align_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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switch (action)
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{
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case GIMP_TOOL_ACTION_PAUSE:
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case GIMP_TOOL_ACTION_RESUME:
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break;
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case GIMP_TOOL_ACTION_HALT:
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gimp_align_tool_clear_selected (align_tool);
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break;
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case GIMP_TOOL_ACTION_COMMIT:
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break;
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}
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GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
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}
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static void
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gimp_align_tool_button_press (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonPressType press_type,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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/* If the tool was being used in another image... reset it */
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if (display != tool->display)
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gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
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tool->display = display;
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gimp_tool_control_activate (tool->control);
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align_tool->x2 = align_tool->x1 = coords->x;
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align_tool->y2 = align_tool->y1 = coords->y;
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if (! gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tool)))
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gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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/* some rather complex logic here. If the user clicks without modifiers,
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* then we start a new list, and use the first object in it as reference.
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* If the user clicks using Shift, or draws a rubber-band box, then
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* we add objects to the list, but do not specify which one should
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* be used as reference.
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*/
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static void
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gimp_align_tool_button_release (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonReleaseType release_type,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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GimpAlignOptions *options = GIMP_ALIGN_TOOL_GET_OPTIONS (tool);
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GimpDisplayShell *shell = gimp_display_get_shell (display);
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GObject *object = NULL;
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GimpImage *image = gimp_display_get_image (display);
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GdkModifierType extend_mask;
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gint i;
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extend_mask = gimp_get_extend_selection_mask ();
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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gimp_tool_control_halt (tool->control);
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if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
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{
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align_tool->x2 = align_tool->x1;
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align_tool->y2 = align_tool->y1;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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return;
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}
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if (! (state & extend_mask)) /* start a new list */
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{
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gimp_align_tool_clear_selected (align_tool);
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align_tool->set_reference = FALSE;
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}
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/* if mouse has moved less than EPSILON pixels since button press,
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* select the nearest thing, otherwise make a rubber-band rectangle
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*/
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if (hypot (coords->x - align_tool->x1,
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coords->y - align_tool->y1) < EPSILON)
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{
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GimpVectors *vectors;
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GimpGuide *guide;
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GimpLayer *layer;
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gint snap_distance = display->config->snap_distance;
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if (gimp_draw_tool_on_vectors (GIMP_DRAW_TOOL (tool), display,
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coords, snap_distance, snap_distance,
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NULL, NULL, NULL, NULL, NULL,
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&vectors))
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{
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object = G_OBJECT (vectors);
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}
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else if (gimp_display_shell_get_show_guides (shell) &&
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(guide = gimp_image_find_guide (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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object = G_OBJECT (guide);
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}
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else
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{
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if ((layer = gimp_image_pick_layer_by_bounds (image,
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coords->x, coords->y)))
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{
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object = G_OBJECT (layer);
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}
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}
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if (object)
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{
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if (! g_list_find (align_tool->selected_objects, object))
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{
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align_tool->selected_objects =
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g_list_append (align_tool->selected_objects, object);
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g_signal_connect (object, "removed",
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G_CALLBACK (gimp_align_tool_object_removed),
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align_tool);
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/* if an object has been selected using unmodified click,
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* it should be used as the reference
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*/
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if (! (state & extend_mask))
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align_tool->set_reference = TRUE;
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}
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}
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}
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else /* FIXME: look for vectors too */
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{
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gint X0 = MIN (coords->x, align_tool->x1);
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gint X1 = MAX (coords->x, align_tool->x1);
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gint Y0 = MIN (coords->y, align_tool->y1);
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gint Y1 = MAX (coords->y, align_tool->y1);
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GList *all_layers;
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GList *list;
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all_layers = gimp_image_get_layer_list (image);
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for (list = all_layers; list; list = g_list_next (list))
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{
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GimpLayer *layer = list->data;
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gint x0, y0, x1, y1;
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if (! gimp_item_get_visible (GIMP_ITEM (layer)))
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continue;
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gimp_item_get_offset (GIMP_ITEM (layer), &x0, &y0);
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x1 = x0 + gimp_item_get_width (GIMP_ITEM (layer));
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y1 = y0 + gimp_item_get_height (GIMP_ITEM (layer));
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if (x0 < X0 || y0 < Y0 || x1 > X1 || y1 > Y1)
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continue;
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if (g_list_find (align_tool->selected_objects, layer))
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continue;
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align_tool->selected_objects =
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g_list_append (align_tool->selected_objects, layer);
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g_signal_connect (layer, "removed",
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G_CALLBACK (gimp_align_tool_object_removed),
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align_tool);
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}
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g_list_free (all_layers);
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}
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for (i = 0; i < ALIGN_OPTIONS_N_BUTTONS; i++)
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{
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if (options->button[i])
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gtk_widget_set_sensitive (options->button[i],
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align_tool->selected_objects != NULL);
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}
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align_tool->x2 = align_tool->x1;
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align_tool->y2 = align_tool->y1;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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static void
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gimp_align_tool_motion (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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align_tool->x2 = coords->x;
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align_tool->y2 = coords->y;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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static gboolean
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gimp_align_tool_key_press (GimpTool *tool,
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GdkEventKey *kevent,
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GimpDisplay *display)
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{
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if (display == tool->display)
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{
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switch (kevent->keyval)
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{
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case GDK_KEY_Escape:
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gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
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return TRUE;
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default:
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break;
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}
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}
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return FALSE;
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}
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static void
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gimp_align_tool_oper_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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GimpDisplayShell *shell = gimp_display_get_shell (display);
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GimpImage *image = gimp_display_get_image (display);
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gint snap_distance = display->config->snap_distance;
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gboolean add;
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add = ((state & gimp_get_extend_selection_mask ()) &&
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align_tool->selected_objects);
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if (gimp_draw_tool_on_vectors (GIMP_DRAW_TOOL (tool), display,
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coords, snap_distance, snap_distance,
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NULL, NULL, NULL, NULL, NULL, NULL))
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{
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if (add)
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align_tool->function = ALIGN_TOOL_ADD_PATH;
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else
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align_tool->function = ALIGN_TOOL_PICK_PATH;
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}
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else if (gimp_display_shell_get_show_guides (shell) &&
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gimp_image_find_guide (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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if (add)
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align_tool->function = ALIGN_TOOL_ADD_GUIDE;
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else
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align_tool->function = ALIGN_TOOL_PICK_GUIDE;
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}
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else
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{
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GimpLayer *layer;
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layer = gimp_image_pick_layer_by_bounds (image, coords->x, coords->y);
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if (layer)
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{
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if (add)
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align_tool->function = ALIGN_TOOL_ADD_LAYER;
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else
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align_tool->function = ALIGN_TOOL_PICK_LAYER;
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}
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else
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{
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align_tool->function = ALIGN_TOOL_IDLE;
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}
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}
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gimp_align_tool_status_update (tool, display, state, proximity);
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}
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static void
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gimp_align_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
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GimpToolCursorType tool_cursor = GIMP_TOOL_CURSOR_NONE;
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GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
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/* always add '+' when Shift is pressed, even if nothing is selected */
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if (state & gimp_get_extend_selection_mask ())
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modifier = GIMP_CURSOR_MODIFIER_PLUS;
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switch (align_tool->function)
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{
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case ALIGN_TOOL_IDLE:
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tool_cursor = GIMP_TOOL_CURSOR_RECT_SELECT;
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break;
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case ALIGN_TOOL_PICK_LAYER:
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case ALIGN_TOOL_ADD_LAYER:
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tool_cursor = GIMP_TOOL_CURSOR_HAND;
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break;
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case ALIGN_TOOL_PICK_GUIDE:
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case ALIGN_TOOL_ADD_GUIDE:
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tool_cursor = GIMP_TOOL_CURSOR_MOVE;
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break;
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case ALIGN_TOOL_PICK_PATH:
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case ALIGN_TOOL_ADD_PATH:
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tool_cursor = GIMP_TOOL_CURSOR_PATHS;
|
|
break;
|
|
|
|
case ALIGN_TOOL_DRAG_BOX:
|
|
break;
|
|
}
|
|
|
|
gimp_tool_control_set_cursor (tool->control, GIMP_CURSOR_MOUSE);
|
|
gimp_tool_control_set_tool_cursor (tool->control, tool_cursor);
|
|
gimp_tool_control_set_cursor_modifier (tool->control, modifier);
|
|
|
|
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
|
|
}
|
|
|
|
static void
|
|
gimp_align_tool_status_update (GimpTool *tool,
|
|
GimpDisplay *display,
|
|
GdkModifierType state,
|
|
gboolean proximity)
|
|
{
|
|
GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (tool);
|
|
GdkModifierType extend_mask;
|
|
|
|
extend_mask = gimp_get_extend_selection_mask ();
|
|
|
|
gimp_tool_pop_status (tool, display);
|
|
|
|
if (proximity)
|
|
{
|
|
gchar *status = NULL;
|
|
|
|
if (! align_tool->selected_objects)
|
|
{
|
|
/* no need to suggest Shift if nothing is selected */
|
|
state |= extend_mask;
|
|
}
|
|
|
|
switch (align_tool->function)
|
|
{
|
|
case ALIGN_TOOL_IDLE:
|
|
status = gimp_suggest_modifiers (_("Click on a layer, path or guide, "
|
|
"or Click-Drag to pick several "
|
|
"layers"),
|
|
extend_mask & ~state,
|
|
NULL, NULL, NULL);
|
|
break;
|
|
|
|
case ALIGN_TOOL_PICK_LAYER:
|
|
status = gimp_suggest_modifiers (_("Click to pick this layer as "
|
|
"first item"),
|
|
extend_mask & ~state,
|
|
NULL, NULL, NULL);
|
|
break;
|
|
|
|
case ALIGN_TOOL_ADD_LAYER:
|
|
status = g_strdup (_("Click to add this layer to the list"));
|
|
break;
|
|
|
|
case ALIGN_TOOL_PICK_GUIDE:
|
|
status = gimp_suggest_modifiers (_("Click to pick this guide as "
|
|
"first item"),
|
|
extend_mask & ~state,
|
|
NULL, NULL, NULL);
|
|
break;
|
|
|
|
case ALIGN_TOOL_ADD_GUIDE:
|
|
status = g_strdup (_("Click to add this guide to the list"));
|
|
break;
|
|
|
|
case ALIGN_TOOL_PICK_PATH:
|
|
status = gimp_suggest_modifiers (_("Click to pick this path as "
|
|
"first item"),
|
|
extend_mask & ~state,
|
|
NULL, NULL, NULL);
|
|
break;
|
|
|
|
case ALIGN_TOOL_ADD_PATH:
|
|
status = g_strdup (_("Click to add this path to the list"));
|
|
break;
|
|
|
|
case ALIGN_TOOL_DRAG_BOX:
|
|
break;
|
|
}
|
|
|
|
if (status)
|
|
{
|
|
gimp_tool_push_status (tool, display, "%s", status);
|
|
g_free (status);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_align_tool_draw (GimpDrawTool *draw_tool)
|
|
{
|
|
GimpAlignTool *align_tool = GIMP_ALIGN_TOOL (draw_tool);
|
|
GList *list;
|
|
gint x, y, w, h;
|
|
|
|
/* draw rubber-band rectangle */
|
|
x = MIN (align_tool->x2, align_tool->x1);
|
|
y = MIN (align_tool->y2, align_tool->y1);
|
|
w = MAX (align_tool->x2, align_tool->x1) - x;
|
|
h = MAX (align_tool->y2, align_tool->y1) - y;
|
|
|
|
gimp_draw_tool_add_rectangle (draw_tool, FALSE, x, y, w, h);
|
|
|
|
for (list = align_tool->selected_objects;
|
|
list;
|
|
list = g_list_next (list))
|
|
{
|
|
if (GIMP_IS_ITEM (list->data))
|
|
{
|
|
GimpItem *item = list->data;
|
|
|
|
if (GIMP_IS_VECTORS (item))
|
|
{
|
|
gdouble x1_f, y1_f, x2_f, y2_f;
|
|
|
|
gimp_vectors_bounds (GIMP_VECTORS (item),
|
|
&x1_f, &y1_f,
|
|
&x2_f, &y2_f);
|
|
x = ROUND (x1_f);
|
|
y = ROUND (y1_f);
|
|
w = ROUND (x2_f - x1_f);
|
|
h = ROUND (y2_f - y1_f);
|
|
}
|
|
else
|
|
{
|
|
gimp_item_get_offset (item, &x, &y);
|
|
|
|
w = gimp_item_get_width (item);
|
|
h = gimp_item_get_height (item);
|
|
}
|
|
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x, y,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_NORTH_WEST);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x + w, y,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_NORTH_EAST);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x, y + h,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_SOUTH_WEST);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x + w, y + h,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_SOUTH_EAST);
|
|
}
|
|
else if (GIMP_IS_GUIDE (list->data))
|
|
{
|
|
GimpGuide *guide = list->data;
|
|
GimpImage *image = gimp_display_get_image (GIMP_TOOL (draw_tool)->display);
|
|
gint x, y;
|
|
gint w, h;
|
|
|
|
switch (gimp_guide_get_orientation (guide))
|
|
{
|
|
case GIMP_ORIENTATION_VERTICAL:
|
|
x = gimp_guide_get_position (guide);
|
|
h = gimp_image_get_height (image);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x, h,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_SOUTH);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
x, 0,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_NORTH);
|
|
break;
|
|
|
|
case GIMP_ORIENTATION_HORIZONTAL:
|
|
y = gimp_guide_get_position (guide);
|
|
w = gimp_image_get_width (image);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
w, y,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_EAST);
|
|
gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_FILLED_SQUARE,
|
|
0, y,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_TOOL_HANDLE_SIZE_SMALL,
|
|
GIMP_HANDLE_ANCHOR_WEST);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_align_tool_align (GimpAlignTool *align_tool,
|
|
GimpAlignmentType align_type)
|
|
{
|
|
GimpAlignOptions *options = GIMP_ALIGN_TOOL_GET_OPTIONS (align_tool);
|
|
GimpImage *image;
|
|
GObject *reference_object = NULL;
|
|
GList *list;
|
|
gint offset = 0;
|
|
|
|
/* if nothing is selected, just return */
|
|
if (! align_tool->selected_objects)
|
|
return;
|
|
|
|
image = gimp_display_get_image (GIMP_TOOL (align_tool)->display);
|
|
|
|
switch (align_type)
|
|
{
|
|
case GIMP_ALIGN_LEFT:
|
|
case GIMP_ALIGN_HCENTER:
|
|
case GIMP_ALIGN_RIGHT:
|
|
case GIMP_ALIGN_TOP:
|
|
case GIMP_ALIGN_VCENTER:
|
|
case GIMP_ALIGN_BOTTOM:
|
|
offset = 0;
|
|
break;
|
|
|
|
case GIMP_ARRANGE_LEFT:
|
|
case GIMP_ARRANGE_HCENTER:
|
|
case GIMP_ARRANGE_RIGHT:
|
|
case GIMP_ARRANGE_TOP:
|
|
case GIMP_ARRANGE_VCENTER:
|
|
case GIMP_ARRANGE_BOTTOM:
|
|
case GIMP_ARRANGE_HFILL:
|
|
case GIMP_ARRANGE_VFILL:
|
|
offset = options->offset_x;
|
|
break;
|
|
}
|
|
|
|
/* if only one object is selected, use the image as reference
|
|
* if multiple objects are selected, use the first one as reference if
|
|
* "set_reference" is TRUE, otherwise use NULL.
|
|
*/
|
|
|
|
list = align_tool->selected_objects;
|
|
|
|
switch (options->align_reference)
|
|
{
|
|
case GIMP_ALIGN_REFERENCE_IMAGE:
|
|
reference_object = G_OBJECT (image);
|
|
break;
|
|
|
|
case GIMP_ALIGN_REFERENCE_FIRST:
|
|
if (g_list_length (list) == 1)
|
|
{
|
|
reference_object = G_OBJECT (image);
|
|
}
|
|
else
|
|
{
|
|
if (align_tool->set_reference)
|
|
{
|
|
reference_object = G_OBJECT (list->data);
|
|
list = g_list_next (list);
|
|
}
|
|
else
|
|
{
|
|
reference_object = NULL;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case GIMP_ALIGN_REFERENCE_SELECTION:
|
|
reference_object = G_OBJECT (gimp_image_get_mask (image));
|
|
break;
|
|
|
|
case GIMP_ALIGN_REFERENCE_ACTIVE_LAYER:
|
|
reference_object = G_OBJECT (gimp_image_get_active_layer (image));
|
|
break;
|
|
|
|
case GIMP_ALIGN_REFERENCE_ACTIVE_CHANNEL:
|
|
reference_object = G_OBJECT (gimp_image_get_active_channel (image));
|
|
break;
|
|
|
|
case GIMP_ALIGN_REFERENCE_ACTIVE_PATH:
|
|
reference_object = G_OBJECT (gimp_image_get_active_vectors (image));
|
|
break;
|
|
}
|
|
|
|
if (! reference_object)
|
|
return;
|
|
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (align_tool));
|
|
|
|
gimp_image_arrange_objects (image, list,
|
|
align_type,
|
|
reference_object,
|
|
align_type,
|
|
offset);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (align_tool));
|
|
|
|
gimp_image_flush (image);
|
|
}
|
|
|
|
static void
|
|
gimp_align_tool_object_removed (GObject *object,
|
|
GimpAlignTool *align_tool)
|
|
{
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (align_tool));
|
|
|
|
if (align_tool->selected_objects)
|
|
g_signal_handlers_disconnect_by_func (object,
|
|
gimp_align_tool_object_removed,
|
|
align_tool);
|
|
|
|
align_tool->selected_objects = g_list_remove (align_tool->selected_objects,
|
|
object);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (align_tool));
|
|
}
|
|
|
|
static void
|
|
gimp_align_tool_clear_selected (GimpAlignTool *align_tool)
|
|
{
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (align_tool));
|
|
|
|
while (align_tool->selected_objects)
|
|
gimp_align_tool_object_removed (align_tool->selected_objects->data,
|
|
align_tool);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (align_tool));
|
|
}
|