mirror of https://github.com/GNOME/gimp.git
1865 lines
67 KiB
C
1865 lines
67 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
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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 <stdlib.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 "libgimpconfig/gimpconfig.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimp.h"
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#include "core/gimpboundary.h"
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#include "core/gimpcontext.h"
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#include "core/gimpchannel.h"
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#include "core/gimpdrawable-transform.h"
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#include "core/gimperror.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-undo.h"
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#include "core/gimpimage-undo-push.h"
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#include "core/gimpitem-linked.h"
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#include "core/gimplayer.h"
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#include "core/gimpprogress.h"
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#include "core/gimptoolinfo.h"
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#include "core/gimp-transform-utils.h"
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#include "core/gimp-utils.h"
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#include "vectors/gimpvectors.h"
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#include "vectors/gimpstroke.h"
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#include "widgets/gimpdialogfactory.h"
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#include "widgets/gimpwidgets-utils.h"
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#include "display/gimpcanvasgroup.h"
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#include "display/gimpcanvashandle.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplayshell.h"
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#include "display/gimpdisplayshell-transform.h"
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#include "display/gimptoolgui.h"
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#include "gimptoolcontrol.h"
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#include "gimptransformoptions.h"
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#include "gimptransformtool.h"
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#include "gimptransformtoolundo.h"
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#include "gimp-intl.h"
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#define RESPONSE_RESET 1
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#define MIN_HANDLE_SIZE 6
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static void gimp_transform_tool_finalize (GObject *object);
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static gboolean gimp_transform_tool_initialize (GimpTool *tool,
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GimpDisplay *display,
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GError **error);
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static void gimp_transform_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display);
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static void gimp_transform_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_transform_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_transform_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_transform_tool_key_press (GimpTool *tool,
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GdkEventKey *kevent,
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GimpDisplay *display);
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static void gimp_transform_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_transform_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_transform_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 const gchar * gimp_transform_tool_get_undo_desc (GimpTool *tool,
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GimpDisplay *display);
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static const gchar * gimp_transform_tool_get_redo_desc (GimpTool *tool,
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GimpDisplay *display);
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static gboolean gimp_transform_tool_undo (GimpTool *tool,
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GimpDisplay *display);
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static gboolean gimp_transform_tool_redo (GimpTool *tool,
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GimpDisplay *display);
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static void gimp_transform_tool_options_notify (GimpTool *tool,
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GimpToolOptions *options,
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const GParamSpec *pspec);
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static void gimp_transform_tool_draw (GimpDrawTool *draw_tool);
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static void gimp_transform_tool_dialog_update (GimpTransformTool *tr_tool);
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static GeglBuffer *
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gimp_transform_tool_real_transform (GimpTransformTool *tr_tool,
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GimpItem *item,
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GeglBuffer *orig_buffer,
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gint orig_offset_x,
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gint orig_offset_y,
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gint *new_offset_x,
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gint *new_offset_y);
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static void gimp_transform_tool_real_draw_gui (GimpTransformTool *tr_tool,
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gint handle_w,
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gint handle_h);
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static TransformAction
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gimp_transform_tool_real_pick_function (GimpTransformTool *tr_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_transform_tool_halt (GimpTransformTool *tr_tool);
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static void gimp_transform_tool_set_function (GimpTransformTool *tr_tool,
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TransformAction function);
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static void gimp_transform_tool_bounds (GimpTransformTool *tr_tool,
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GimpDisplay *display);
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static void gimp_transform_tool_dialog (GimpTransformTool *tr_tool);
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static void gimp_transform_tool_prepare (GimpTransformTool *tr_tool,
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GimpDisplay *display);
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static void gimp_transform_tool_transform (GimpTransformTool *tr_tool,
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GimpDisplay *display);
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static void gimp_transform_tool_transform_bounding_box (GimpTransformTool *tr_tool);
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static void gimp_transform_tool_handles_recalc (GimpTransformTool *tr_tool,
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GimpDisplay *display,
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gint *handle_w,
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gint *handle_h);
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static void gimp_transform_tool_response (GimpToolGui *gui,
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gint response_id,
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GimpTransformTool *tr_tool);
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static void gimp_transform_tool_free_trans (gpointer data);
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static void gimp_transform_tool_update_sensitivity (GimpTransformTool *tr_tool);
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static GimpItem *gimp_transform_tool_get_active_item (GimpTransformTool *tr_tool,
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GimpImage *image);
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static GimpItem *gimp_transform_tool_check_active_item (GimpTransformTool *tr_tool,
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GimpImage *display,
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GError **error);
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G_DEFINE_TYPE (GimpTransformTool, gimp_transform_tool, GIMP_TYPE_DRAW_TOOL)
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#define parent_class gimp_transform_tool_parent_class
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static void
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gimp_transform_tool_class_init (GimpTransformToolClass *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_class = GIMP_DRAW_TOOL_CLASS (klass);
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object_class->finalize = gimp_transform_tool_finalize;
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tool_class->initialize = gimp_transform_tool_initialize;
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tool_class->control = gimp_transform_tool_control;
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tool_class->button_press = gimp_transform_tool_button_press;
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tool_class->button_release = gimp_transform_tool_button_release;
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tool_class->motion = gimp_transform_tool_motion;
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tool_class->key_press = gimp_transform_tool_key_press;
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tool_class->modifier_key = gimp_transform_tool_modifier_key;
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tool_class->active_modifier_key = gimp_transform_tool_modifier_key;
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tool_class->oper_update = gimp_transform_tool_oper_update;
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tool_class->cursor_update = gimp_transform_tool_cursor_update;
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tool_class->get_undo_desc = gimp_transform_tool_get_undo_desc;
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tool_class->get_redo_desc = gimp_transform_tool_get_redo_desc;
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tool_class->undo = gimp_transform_tool_undo;
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tool_class->redo = gimp_transform_tool_redo;
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tool_class->options_notify = gimp_transform_tool_options_notify;
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draw_class->draw = gimp_transform_tool_draw;
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klass->dialog = NULL;
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klass->dialog_update = NULL;
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klass->prepare = NULL;
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klass->motion = NULL;
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klass->recalc_matrix = NULL;
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klass->get_undo_desc = NULL;
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klass->transform = gimp_transform_tool_real_transform;
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klass->pick_function = gimp_transform_tool_real_pick_function;
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klass->draw_gui = gimp_transform_tool_real_draw_gui;
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}
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static void
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gimp_transform_tool_init (GimpTransformTool *tr_tool)
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{
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GimpTool *tool = GIMP_TOOL (tr_tool);
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gimp_tool_control_set_action_opacity (tool->control,
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"tools/tools-transform-preview-opacity-set");
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gimp_tool_control_set_scroll_lock (tool->control, TRUE);
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gimp_tool_control_set_preserve (tool->control, FALSE);
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gimp_tool_control_set_dirty_mask (tool->control,
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GIMP_DIRTY_IMAGE_SIZE |
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GIMP_DIRTY_DRAWABLE |
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GIMP_DIRTY_SELECTION |
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GIMP_DIRTY_ACTIVE_DRAWABLE);
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gimp_tool_control_set_precision (tool->control,
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GIMP_CURSOR_PRECISION_SUBPIXEL);
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tr_tool->function = TRANSFORM_CREATING;
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tr_tool->progress_text = _("Transforming");
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gimp_matrix3_identity (&tr_tool->transform);
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}
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static void
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gimp_transform_tool_finalize (GObject *object)
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{
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GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (object);
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if (tr_tool->gui)
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{
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g_object_unref (tr_tool->gui);
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tr_tool->gui = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gimp_transform_tool_initialize (GimpTool *tool,
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GimpDisplay *display,
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GError **error)
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{
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GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
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GimpImage *image = gimp_display_get_image (display);
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GimpDrawable *drawable = gimp_image_get_active_drawable (image);
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GimpItem *item;
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if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
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{
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return FALSE;
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}
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item = gimp_transform_tool_check_active_item (tr_tool, image, error);
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if (! item)
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return FALSE;
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if (display != tool->display)
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{
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gint i;
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gimp_transform_tool_halt (tr_tool);
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/* Set the pointer to the active display */
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tool->display = display;
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tool->drawable = drawable;
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/* Initialize the transform tool dialog */
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if (! tr_tool->gui)
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gimp_transform_tool_dialog (tr_tool);
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/* Find the transform bounds for some tools (like scale,
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* perspective) that actually need the bounds for initializing
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*/
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gimp_transform_tool_bounds (tr_tool, display);
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/* Inizialize the tool-specific trans_info, and adjust the
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* tool dialog
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*/
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gimp_transform_tool_prepare (tr_tool, display);
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/* Recalculate the transform tool */
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gimp_transform_tool_recalc_matrix (tr_tool);
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/* start drawing the bounding box and handles... */
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gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
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tr_tool->function = TRANSFORM_CREATING;
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/* Initialize undo and redo lists */
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tr_tool->undo_list = g_list_prepend (NULL, g_slice_new (TransInfo));
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tr_tool->redo_list = NULL;
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tr_tool->old_trans_info = g_list_last (tr_tool->undo_list)->data;
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tr_tool->prev_trans_info = g_list_first (tr_tool->undo_list)->data;
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gimp_transform_tool_update_sensitivity (tr_tool);
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/* Save the current transformation info */
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for (i = 0; i < TRANS_INFO_SIZE; i++)
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{
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(*tr_tool->prev_trans_info)[i] = tr_tool->trans_info[i];
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}
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}
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return TRUE;
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}
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static void
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gimp_transform_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display)
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{
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GimpTransformTool *tr_tool = GIMP_TRANSFORM_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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break;
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case GIMP_TOOL_ACTION_RESUME:
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gimp_transform_tool_bounds (tr_tool, display);
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gimp_transform_tool_recalc_matrix (tr_tool);
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break;
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case GIMP_TOOL_ACTION_HALT:
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gimp_transform_tool_halt (tr_tool);
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break;
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case GIMP_TOOL_ACTION_COMMIT:
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gimp_transform_tool_transform (tr_tool, display);
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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_transform_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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GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
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if (tr_tool->function == TRANSFORM_CREATING)
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GIMP_TOOL_GET_CLASS (tool)->oper_update (tool, coords, state, TRUE, display);
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tr_tool->lastx = tr_tool->mousex = coords->x;
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tr_tool->lasty = tr_tool->mousey = coords->y;
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gimp_tool_control_activate (tool->control);
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if (GIMP_IS_CANVAS_HANDLE (tr_tool->handles[tr_tool->function]))
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{
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gdouble x, y;
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gimp_canvas_handle_get_position (tr_tool->handles[tr_tool->function],
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&x, &y);
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gimp_tool_control_set_snap_offsets (tool->control,
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SIGNED_ROUND (x - coords->x),
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SIGNED_ROUND (y - coords->y),
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0, 0);
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}
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else
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{
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gimp_tool_control_set_snap_offsets (tool->control, 0, 0, 0, 0);
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}
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}
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void
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gimp_transform_tool_push_internal_undo (GimpTransformTool *tr_tool)
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{
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gint i;
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g_return_if_fail (GIMP_IS_TRANSFORM_TOOL (tr_tool));
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g_return_if_fail (tr_tool->prev_trans_info != NULL);
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/* push current state on the undo list and set this state as the
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* current state, but avoid doing this if there were no changes
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*/
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for (i = 0; i < TRANS_INFO_SIZE; i++)
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if ((*tr_tool->prev_trans_info)[i] != tr_tool->trans_info[i])
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break;
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if (i < TRANS_INFO_SIZE)
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{
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tr_tool->prev_trans_info = g_slice_new (TransInfo);
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for (i = 0; i < TRANS_INFO_SIZE; i++)
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(*tr_tool->prev_trans_info)[i] = tr_tool->trans_info[i];
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tr_tool->undo_list = g_list_prepend (tr_tool->undo_list,
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tr_tool->prev_trans_info);
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/* If we undid anything and started interacting, we have to
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* discard the redo history
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*/
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g_list_free_full (tr_tool->redo_list, gimp_transform_tool_free_trans);
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tr_tool->redo_list = NULL;
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gimp_transform_tool_update_sensitivity (tr_tool);
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/* update the undo actions / menu items */
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gimp_image_flush (gimp_display_get_image (GIMP_TOOL (tr_tool)->display));
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}
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}
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static void
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gimp_transform_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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GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
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gint i;
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gimp_tool_control_halt (tool->control);
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/* if we are creating, there is nothing to be done...exit */
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if (tr_tool->function == TRANSFORM_CREATING && tr_tool->use_grid)
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return;
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if (release_type != GIMP_BUTTON_RELEASE_CANCEL)
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{
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/* This hack is to perform the flip immediately with the flip tool */
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if (! tr_tool->use_grid)
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{
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gimp_transform_tool_response (NULL, GTK_RESPONSE_OK, tr_tool);
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return;
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}
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/* We're done with an interaction, save it on the undo list */
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gimp_transform_tool_push_internal_undo (tr_tool);
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}
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else
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{
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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/* Restore the last saved state */
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for (i = 0; i < TRANS_INFO_SIZE; i++)
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tr_tool->trans_info[i] = (*tr_tool->prev_trans_info)[i];
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/* reget the selection bounds */
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gimp_transform_tool_bounds (tr_tool, display);
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/* recalculate the tool's transformation matrix */
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gimp_transform_tool_recalc_matrix (tr_tool);
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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}
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static void
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gimp_transform_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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GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
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|
|
/* if we are creating, there is nothing to be done so exit. */
|
|
if (tr_tool->function == TRANSFORM_CREATING || ! tr_tool->use_grid)
|
|
return;
|
|
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
|
|
|
|
tr_tool->curx = coords->x;
|
|
tr_tool->cury = coords->y;
|
|
|
|
/* recalculate the tool's transformation matrix */
|
|
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->motion)
|
|
{
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->motion (tr_tool);
|
|
|
|
gimp_transform_tool_recalc_matrix (tr_tool);
|
|
}
|
|
|
|
tr_tool->lastx = tr_tool->curx;
|
|
tr_tool->lasty = tr_tool->cury;
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
|
|
}
|
|
|
|
static gboolean
|
|
gimp_transform_tool_key_press (GimpTool *tool,
|
|
GdkEventKey *kevent,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
|
|
|
|
if (display == draw_tool->display)
|
|
{
|
|
switch (kevent->keyval)
|
|
{
|
|
case GDK_KEY_Return:
|
|
case GDK_KEY_KP_Enter:
|
|
case GDK_KEY_ISO_Enter:
|
|
gimp_transform_tool_response (NULL, GTK_RESPONSE_OK, tr_tool);
|
|
return TRUE;
|
|
|
|
case GDK_KEY_BackSpace:
|
|
gimp_transform_tool_response (NULL, RESPONSE_RESET, tr_tool);
|
|
return TRUE;
|
|
|
|
case GDK_KEY_Escape:
|
|
gimp_transform_tool_response (NULL, GTK_RESPONSE_CANCEL, tr_tool);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_modifier_key (GimpTool *tool,
|
|
GdkModifierType key,
|
|
gboolean press,
|
|
GdkModifierType state,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tool);
|
|
|
|
if (key == gimp_get_constrain_behavior_mask ())
|
|
{
|
|
g_object_set (options,
|
|
"frompivot-scale", ! options->frompivot_scale,
|
|
NULL);
|
|
g_object_set (options,
|
|
"frompivot-shear", ! options->frompivot_shear,
|
|
NULL);
|
|
g_object_set (options,
|
|
"frompivot-perspective", ! options->frompivot_perspective,
|
|
NULL);
|
|
}
|
|
|
|
if (key == gimp_get_extend_selection_mask ())
|
|
{
|
|
g_object_set (options,
|
|
"cornersnap", ! options->cornersnap,
|
|
NULL);
|
|
|
|
g_object_set (options,
|
|
"constrain-move", ! options->constrain_move,
|
|
NULL);
|
|
g_object_set (options,
|
|
"constrain-scale", ! options->constrain_scale,
|
|
NULL);
|
|
g_object_set (options,
|
|
"constrain-rotate", ! options->constrain_rotate,
|
|
NULL);
|
|
g_object_set (options,
|
|
"constrain-shear", ! options->constrain_shear,
|
|
NULL);
|
|
g_object_set (options,
|
|
"constrain-perspective", ! options->constrain_perspective,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
static TransformAction
|
|
gimp_transform_tool_real_pick_function (GimpTransformTool *tr_tool,
|
|
const GimpCoords *coords,
|
|
GdkModifierType state,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tr_tool);
|
|
TransformAction function = TRANSFORM_HANDLE_NONE;
|
|
|
|
if (tr_tool->use_corner_handles)
|
|
{
|
|
gdouble closest_dist;
|
|
gdouble dist;
|
|
|
|
dist = gimp_draw_tool_calc_distance_square (draw_tool, display,
|
|
coords->x, coords->y,
|
|
tr_tool->tx1, tr_tool->ty1);
|
|
closest_dist = dist;
|
|
function = TRANSFORM_HANDLE_NW;
|
|
|
|
dist = gimp_draw_tool_calc_distance_square (draw_tool, display,
|
|
coords->x, coords->y,
|
|
tr_tool->tx2, tr_tool->ty2);
|
|
if (dist < closest_dist)
|
|
{
|
|
closest_dist = dist;
|
|
function = TRANSFORM_HANDLE_NE;
|
|
}
|
|
|
|
dist = gimp_draw_tool_calc_distance_square (draw_tool, display,
|
|
coords->x, coords->y,
|
|
tr_tool->tx3, tr_tool->ty3);
|
|
if (dist < closest_dist)
|
|
{
|
|
closest_dist = dist;
|
|
function = TRANSFORM_HANDLE_SW;
|
|
}
|
|
|
|
dist = gimp_draw_tool_calc_distance_square (draw_tool, display,
|
|
coords->x, coords->y,
|
|
tr_tool->tx4, tr_tool->ty4);
|
|
if (dist < closest_dist)
|
|
{
|
|
closest_dist = dist;
|
|
function = TRANSFORM_HANDLE_SE;
|
|
}
|
|
}
|
|
|
|
if (tr_tool->use_side_handles)
|
|
{
|
|
if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_N],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_N;
|
|
}
|
|
else if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_E],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_E;
|
|
}
|
|
else if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_S],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_S;
|
|
}
|
|
else if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_W],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_W;
|
|
}
|
|
}
|
|
|
|
if (tr_tool->use_center_handle)
|
|
{
|
|
if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_CENTER],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_CENTER;
|
|
}
|
|
}
|
|
|
|
if (tr_tool->use_pivot_handle)
|
|
{
|
|
if (gimp_canvas_item_hit (tr_tool->handles[TRANSFORM_HANDLE_PIVOT],
|
|
coords->x, coords->y))
|
|
{
|
|
function = TRANSFORM_HANDLE_PIVOT;
|
|
}
|
|
}
|
|
|
|
return function;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_oper_update (GimpTool *tool,
|
|
const GimpCoords *coords,
|
|
GdkModifierType state,
|
|
gboolean proximity,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
|
|
TransformAction function = TRANSFORM_HANDLE_NONE;
|
|
|
|
if (display != tool->display || draw_tool->item == NULL)
|
|
{
|
|
gimp_transform_tool_set_function (tr_tool, function);
|
|
return;
|
|
}
|
|
|
|
function = GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->pick_function (tr_tool,
|
|
coords,
|
|
state,
|
|
display);
|
|
|
|
gimp_transform_tool_set_function (tr_tool, function);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_cursor_update (GimpTool *tool,
|
|
const GimpCoords *coords,
|
|
GdkModifierType state,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GimpImage *image = gimp_display_get_image (display);
|
|
GimpCursorType cursor = gimp_tool_control_get_cursor (tool->control);
|
|
GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
|
|
|
|
if (tr_tool->use_corner_handles ||
|
|
tr_tool->use_side_handles)
|
|
{
|
|
switch (tr_tool->function)
|
|
{
|
|
case TRANSFORM_HANDLE_NW:
|
|
cursor = GIMP_CURSOR_CORNER_TOP_LEFT;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_NE:
|
|
cursor = GIMP_CURSOR_CORNER_TOP_RIGHT;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_SW:
|
|
cursor = GIMP_CURSOR_CORNER_BOTTOM_LEFT;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_SE:
|
|
cursor = GIMP_CURSOR_CORNER_BOTTOM_RIGHT;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_N:
|
|
cursor = GIMP_CURSOR_SIDE_TOP;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_E:
|
|
cursor = GIMP_CURSOR_SIDE_RIGHT;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_S:
|
|
cursor = GIMP_CURSOR_SIDE_BOTTOM;
|
|
break;
|
|
|
|
case TRANSFORM_HANDLE_W:
|
|
cursor = GIMP_CURSOR_SIDE_LEFT;
|
|
break;
|
|
|
|
default:
|
|
cursor = GIMP_CURSOR_CROSSHAIR_SMALL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (tr_tool->use_center_handle &&
|
|
tr_tool->function == TRANSFORM_HANDLE_CENTER)
|
|
{
|
|
modifier = GIMP_CURSOR_MODIFIER_MOVE;
|
|
}
|
|
|
|
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->cursor_update)
|
|
{
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->cursor_update (tr_tool,
|
|
&cursor,
|
|
&modifier);
|
|
}
|
|
|
|
if (! gimp_transform_tool_check_active_item (tr_tool, image, NULL))
|
|
modifier = GIMP_CURSOR_MODIFIER_BAD;
|
|
|
|
gimp_tool_control_set_cursor (tool->control, cursor);
|
|
gimp_tool_control_set_cursor_modifier (tool->control, modifier);
|
|
|
|
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
|
|
}
|
|
|
|
static const gchar *
|
|
gimp_transform_tool_get_undo_desc (GimpTool *tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
|
|
|
|
if (display != draw_tool->display || ! tr_tool->undo_list ||
|
|
! tr_tool->undo_list->next)
|
|
return NULL;
|
|
|
|
return _("Transform Step");
|
|
}
|
|
|
|
static const gchar *
|
|
gimp_transform_tool_get_redo_desc (GimpTool *tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
|
|
|
|
if (display != draw_tool->display || ! tr_tool->redo_list)
|
|
return NULL;
|
|
|
|
return _("Transform Step");
|
|
}
|
|
|
|
static gboolean
|
|
gimp_transform_tool_undo (GimpTool *tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GList *item;
|
|
gint i;
|
|
|
|
if (! gimp_transform_tool_get_undo_desc (tool, display))
|
|
return FALSE;
|
|
|
|
item = g_list_next (tr_tool->undo_list);
|
|
|
|
/* Move prev_trans_info from undo_list to redo_list */
|
|
tr_tool->redo_list = g_list_prepend (tr_tool->redo_list,
|
|
tr_tool->prev_trans_info);
|
|
tr_tool->undo_list = g_list_remove (tr_tool->undo_list,
|
|
tr_tool->prev_trans_info);
|
|
|
|
tr_tool->prev_trans_info = item->data;
|
|
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
|
|
|
|
/* Restore the previous transformation info */
|
|
for (i = 0; i < TRANS_INFO_SIZE; i++)
|
|
{
|
|
tr_tool->trans_info[i] = (*tr_tool->prev_trans_info)[i];
|
|
}
|
|
|
|
/* reget the selection bounds */
|
|
gimp_transform_tool_bounds (tr_tool, tool->display);
|
|
|
|
/* recalculate the tool's transformation matrix */
|
|
gimp_transform_tool_recalc_matrix (tr_tool);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_transform_tool_redo (GimpTool *tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
GList *item;
|
|
gint i;
|
|
|
|
if (! gimp_transform_tool_get_redo_desc (tool, display))
|
|
return FALSE;
|
|
|
|
item = tr_tool->redo_list;
|
|
|
|
/* Move prev_trans_info from redo_list to undo_list */
|
|
tr_tool->prev_trans_info = item->data;
|
|
|
|
tr_tool->undo_list = g_list_prepend (tr_tool->undo_list,
|
|
tr_tool->prev_trans_info);
|
|
tr_tool->redo_list = g_list_remove (tr_tool->redo_list,
|
|
tr_tool->prev_trans_info);
|
|
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
|
|
|
|
/* Restore the previous transformation info */
|
|
for (i = 0; i < TRANS_INFO_SIZE; i++)
|
|
{
|
|
tr_tool->trans_info[i] = (*tr_tool->prev_trans_info)[i];
|
|
}
|
|
|
|
/* reget the selection bounds */
|
|
gimp_transform_tool_bounds (tr_tool, tool->display);
|
|
|
|
/* recalculate the tool's transformation matrix */
|
|
gimp_transform_tool_recalc_matrix (tr_tool);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_options_notify (GimpTool *tool,
|
|
GimpToolOptions *options,
|
|
const GParamSpec *pspec)
|
|
{
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (tool);
|
|
|
|
GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec);
|
|
|
|
if (! strcmp (pspec->name, "type"))
|
|
{
|
|
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
|
|
return;
|
|
}
|
|
|
|
if (tr_tool->use_grid)
|
|
{
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tr_tool));
|
|
|
|
if (! strcmp (pspec->name, "direction"))
|
|
{
|
|
if (tr_tool->function != TRANSFORM_CREATING)
|
|
{
|
|
if (tool->display)
|
|
{
|
|
/* reget the selection bounds */
|
|
gimp_transform_tool_bounds (tr_tool, tool->display);
|
|
|
|
/* recalculate the tool's transformation matrix */
|
|
gimp_transform_tool_recalc_matrix (tr_tool);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (tr_tool->function != TRANSFORM_CREATING)
|
|
{
|
|
gimp_transform_tool_transform_bounding_box (tr_tool);
|
|
}
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tr_tool));
|
|
}
|
|
|
|
if (g_str_has_prefix (pspec->name, "constrain-") ||
|
|
g_str_has_prefix (pspec->name, "frompivot-") ||
|
|
! strcmp (pspec->name, "fixedpivot") ||
|
|
! strcmp (pspec->name, "cornersnap"))
|
|
{
|
|
gimp_transform_tool_dialog_update (tr_tool);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_real_draw_gui (GimpTransformTool *tr_tool,
|
|
gint handle_w,
|
|
gint handle_h)
|
|
{
|
|
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tr_tool);
|
|
|
|
if (tr_tool->use_corner_handles)
|
|
{
|
|
tr_tool->handles[TRANSFORM_HANDLE_NW] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
tr_tool->tx1, tr_tool->ty1,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_NE] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
tr_tool->tx2, tr_tool->ty2,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_SW] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
tr_tool->tx3, tr_tool->ty3,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_SE] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
tr_tool->tx4, tr_tool->ty4,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
}
|
|
|
|
if (tr_tool->use_side_handles)
|
|
{
|
|
tr_tool->handles[TRANSFORM_HANDLE_N] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
(tr_tool->tx1 + tr_tool->tx2) / 2.0,
|
|
(tr_tool->ty1 + tr_tool->ty2) / 2.0,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_E] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
(tr_tool->tx2 + tr_tool->tx4) / 2.0,
|
|
(tr_tool->ty2 + tr_tool->ty4) / 2.0,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_S] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
(tr_tool->tx3 + tr_tool->tx4) / 2.0,
|
|
(tr_tool->ty3 + tr_tool->ty4) / 2.0,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_W] =
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
(tr_tool->tx3 + tr_tool->tx1) / 2.0,
|
|
(tr_tool->ty3 + tr_tool->ty1) / 2.0,
|
|
handle_w, handle_h,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
}
|
|
|
|
if (tr_tool->use_pivot_handle)
|
|
{
|
|
GimpCanvasGroup *stroke_group;
|
|
gint d = MIN (handle_w, handle_h);
|
|
|
|
if (tr_tool->use_center_handle)
|
|
d *= 2; /* so you can grab it from under the center handle */
|
|
|
|
stroke_group = gimp_draw_tool_add_stroke_group (draw_tool);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_PIVOT] = GIMP_CANVAS_ITEM (stroke_group);
|
|
|
|
gimp_draw_tool_push_group (draw_tool, stroke_group);
|
|
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_CIRCLE,
|
|
tr_tool->tpx, tr_tool->tpy,
|
|
d, d,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_CROSS,
|
|
tr_tool->tpx, tr_tool->tpy,
|
|
d, d,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
gimp_draw_tool_pop_group (draw_tool);
|
|
}
|
|
|
|
if (tr_tool->use_center_handle)
|
|
{
|
|
GimpCanvasGroup *stroke_group;
|
|
gint d = MIN (handle_w, handle_h);
|
|
|
|
stroke_group = gimp_draw_tool_add_stroke_group (draw_tool);
|
|
|
|
tr_tool->handles[TRANSFORM_HANDLE_CENTER] = GIMP_CANVAS_ITEM (stroke_group);
|
|
|
|
gimp_draw_tool_push_group (draw_tool, stroke_group);
|
|
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_SQUARE,
|
|
tr_tool->tcx, tr_tool->tcy,
|
|
d, d,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
gimp_draw_tool_add_handle (draw_tool,
|
|
GIMP_HANDLE_CROSS,
|
|
tr_tool->tcx, tr_tool->tcy,
|
|
d, d,
|
|
GIMP_HANDLE_ANCHOR_CENTER);
|
|
|
|
gimp_draw_tool_pop_group (draw_tool);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_draw (GimpDrawTool *draw_tool)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (draw_tool);
|
|
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (draw_tool);
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tool);
|
|
GimpImage *image = gimp_display_get_image (tool->display);
|
|
gint handle_w;
|
|
gint handle_h;
|
|
gint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (tr_tool->handles); i++)
|
|
tr_tool->handles[i] = NULL;
|
|
|
|
if (tr_tool->use_grid)
|
|
{
|
|
if (gimp_transform_options_show_preview (options))
|
|
{
|
|
GimpMatrix3 matrix = tr_tool->transform;
|
|
|
|
if (options->direction == GIMP_TRANSFORM_BACKWARD)
|
|
gimp_matrix3_invert (&matrix);
|
|
|
|
gimp_draw_tool_add_transform_preview (draw_tool,
|
|
tool->drawable,
|
|
&matrix,
|
|
tr_tool->x1,
|
|
tr_tool->y1,
|
|
tr_tool->x2,
|
|
tr_tool->y2,
|
|
tr_tool->does_perspective,
|
|
options->preview_opacity);
|
|
}
|
|
|
|
gimp_draw_tool_add_transform_guides (draw_tool,
|
|
&tr_tool->transform,
|
|
options->grid_type,
|
|
options->grid_size,
|
|
tr_tool->x1,
|
|
tr_tool->y1,
|
|
tr_tool->x2,
|
|
tr_tool->y2);
|
|
}
|
|
|
|
gimp_transform_tool_handles_recalc (tr_tool, tool->display,
|
|
&handle_w, &handle_h);
|
|
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->draw_gui (tr_tool, handle_w, handle_h);
|
|
|
|
if (tr_tool->handles[tr_tool->function])
|
|
{
|
|
gimp_canvas_item_set_highlight (tr_tool->handles[tr_tool->function],
|
|
TRUE);
|
|
}
|
|
|
|
if (options->type == GIMP_TRANSFORM_TYPE_SELECTION)
|
|
{
|
|
GimpMatrix3 matrix = tr_tool->transform;
|
|
const GimpBoundSeg *orig_in;
|
|
const GimpBoundSeg *orig_out;
|
|
GimpBoundSeg *segs_in;
|
|
GimpBoundSeg *segs_out;
|
|
gint num_segs_in;
|
|
gint num_segs_out;
|
|
|
|
if (options->direction == GIMP_TRANSFORM_BACKWARD)
|
|
gimp_matrix3_invert (&matrix);
|
|
|
|
gimp_channel_boundary (gimp_image_get_mask (image),
|
|
&orig_in, &orig_out,
|
|
&num_segs_in, &num_segs_out,
|
|
0, 0, 0, 0);
|
|
|
|
segs_in = g_memdup (orig_in, num_segs_in * sizeof (GimpBoundSeg));
|
|
segs_out = g_memdup (orig_out, num_segs_out * sizeof (GimpBoundSeg));
|
|
|
|
if (segs_in)
|
|
{
|
|
for (i = 0; i < num_segs_in; i++)
|
|
{
|
|
gdouble tx, ty;
|
|
|
|
gimp_matrix3_transform_point (&matrix,
|
|
segs_in[i].x1, segs_in[i].y1,
|
|
&tx, &ty);
|
|
segs_in[i].x1 = RINT (tx);
|
|
segs_in[i].y1 = RINT (ty);
|
|
|
|
gimp_matrix3_transform_point (&matrix,
|
|
segs_in[i].x2, segs_in[i].y2,
|
|
&tx, &ty);
|
|
segs_in[i].x2 = RINT (tx);
|
|
segs_in[i].y2 = RINT (ty);
|
|
}
|
|
|
|
gimp_draw_tool_add_boundary (draw_tool,
|
|
segs_in, num_segs_in,
|
|
NULL,
|
|
0, 0);
|
|
g_free (segs_in);
|
|
}
|
|
|
|
if (segs_out)
|
|
{
|
|
for (i = 0; i < num_segs_out; i++)
|
|
{
|
|
gdouble tx, ty;
|
|
|
|
gimp_matrix3_transform_point (&matrix,
|
|
segs_out[i].x1, segs_out[i].y1,
|
|
&tx, &ty);
|
|
segs_out[i].x1 = RINT (tx);
|
|
segs_out[i].y1 = RINT (ty);
|
|
|
|
gimp_matrix3_transform_point (&matrix,
|
|
segs_out[i].x2, segs_out[i].y2,
|
|
&tx, &ty);
|
|
segs_out[i].x2 = RINT (tx);
|
|
segs_out[i].y2 = RINT (ty);
|
|
}
|
|
|
|
gimp_draw_tool_add_boundary (draw_tool,
|
|
segs_out, num_segs_out,
|
|
NULL,
|
|
0, 0);
|
|
g_free (segs_out);
|
|
}
|
|
}
|
|
else if (options->type == GIMP_TRANSFORM_TYPE_PATH)
|
|
{
|
|
GimpVectors *vectors;
|
|
GimpStroke *stroke = NULL;
|
|
GimpMatrix3 matrix = tr_tool->transform;
|
|
|
|
vectors = gimp_image_get_active_vectors (image);
|
|
|
|
if (vectors)
|
|
{
|
|
if (options->direction == GIMP_TRANSFORM_BACKWARD)
|
|
gimp_matrix3_invert (&matrix);
|
|
|
|
while ((stroke = gimp_vectors_stroke_get_next (vectors, stroke)))
|
|
{
|
|
GArray *coords;
|
|
gboolean closed;
|
|
|
|
coords = gimp_stroke_interpolate (stroke, 1.0, &closed);
|
|
|
|
if (coords && coords->len)
|
|
{
|
|
gint i;
|
|
|
|
for (i = 0; i < coords->len; i++)
|
|
{
|
|
GimpCoords *curr = &g_array_index (coords, GimpCoords, i);
|
|
|
|
gimp_matrix3_transform_point (&matrix,
|
|
curr->x, curr->y,
|
|
&curr->x, &curr->y);
|
|
}
|
|
|
|
gimp_draw_tool_add_strokes (draw_tool,
|
|
&g_array_index (coords,
|
|
GimpCoords, 0),
|
|
coords->len, FALSE);
|
|
}
|
|
|
|
if (coords)
|
|
g_array_free (coords, TRUE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_dialog_update (GimpTransformTool *tr_tool)
|
|
{
|
|
if (tr_tool->gui &&
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog_update)
|
|
{
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog_update (tr_tool);
|
|
}
|
|
}
|
|
|
|
static GeglBuffer *
|
|
gimp_transform_tool_real_transform (GimpTransformTool *tr_tool,
|
|
GimpItem *active_item,
|
|
GeglBuffer *orig_buffer,
|
|
gint orig_offset_x,
|
|
gint orig_offset_y,
|
|
gint *new_offset_x,
|
|
gint *new_offset_y)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (tr_tool);
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tool);
|
|
GimpContext *context = GIMP_CONTEXT (options);
|
|
GeglBuffer *ret = NULL;
|
|
GimpTransformResize clip = options->clip;
|
|
GimpProgress *progress;
|
|
|
|
progress = gimp_progress_start (GIMP_PROGRESS (tool), FALSE,
|
|
"%s", tr_tool->progress_text);
|
|
|
|
if (gimp_item_get_linked (active_item))
|
|
gimp_item_linked_transform (active_item, context,
|
|
&tr_tool->transform,
|
|
options->direction,
|
|
options->interpolation,
|
|
clip,
|
|
progress);
|
|
|
|
if (orig_buffer)
|
|
{
|
|
/* this happens when transforming a selection cut out of a
|
|
* normal drawable, or the selection
|
|
*/
|
|
|
|
/* always clip the selction and unfloated channels
|
|
* so they keep their size
|
|
*/
|
|
if (GIMP_IS_CHANNEL (active_item) &&
|
|
! babl_format_has_alpha (gegl_buffer_get_format (orig_buffer)))
|
|
clip = GIMP_TRANSFORM_RESIZE_CLIP;
|
|
|
|
ret = gimp_drawable_transform_buffer_affine (GIMP_DRAWABLE (active_item),
|
|
context,
|
|
orig_buffer,
|
|
orig_offset_x,
|
|
orig_offset_y,
|
|
&tr_tool->transform,
|
|
options->direction,
|
|
options->interpolation,
|
|
clip,
|
|
new_offset_x,
|
|
new_offset_y,
|
|
progress);
|
|
}
|
|
else
|
|
{
|
|
/* this happens for entire drawables, paths and layer groups */
|
|
|
|
/* always clip layer masks so they keep their size
|
|
*/
|
|
if (GIMP_IS_CHANNEL (active_item))
|
|
clip = GIMP_TRANSFORM_RESIZE_CLIP;
|
|
|
|
gimp_item_transform (active_item, context,
|
|
&tr_tool->transform,
|
|
options->direction,
|
|
options->interpolation,
|
|
clip,
|
|
progress);
|
|
}
|
|
|
|
if (progress)
|
|
gimp_progress_end (progress);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_transform (GimpTransformTool *tr_tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (tr_tool);
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tool);
|
|
GimpContext *context = GIMP_CONTEXT (options);
|
|
GimpImage *image = gimp_display_get_image (display);
|
|
GimpItem *active_item;
|
|
GeglBuffer *orig_buffer = NULL;
|
|
gint orig_offset_x = 0;
|
|
gint orig_offset_y = 0;
|
|
GeglBuffer *new_buffer;
|
|
gint new_offset_x;
|
|
gint new_offset_y;
|
|
gchar *undo_desc = NULL;
|
|
gboolean new_layer = FALSE;
|
|
GError *error = NULL;
|
|
|
|
active_item = gimp_transform_tool_check_active_item (tr_tool, image, &error);
|
|
|
|
if (! active_item)
|
|
{
|
|
gimp_tool_message_literal (tool, display, error->message);
|
|
g_clear_error (&error);
|
|
return;
|
|
}
|
|
|
|
if (tr_tool->gui)
|
|
gimp_tool_gui_hide (tr_tool->gui);
|
|
|
|
gimp_set_busy (display->gimp);
|
|
|
|
/* undraw the tool before we muck around with the transform matrix */
|
|
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tr_tool));
|
|
|
|
/* We're going to dirty this image, but we want to keep the tool around */
|
|
gimp_tool_control_push_preserve (tool->control, TRUE);
|
|
|
|
undo_desc = GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->get_undo_desc (tr_tool);
|
|
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TRANSFORM, undo_desc);
|
|
g_free (undo_desc);
|
|
|
|
switch (options->type)
|
|
{
|
|
case GIMP_TRANSFORM_TYPE_LAYER:
|
|
if (! gimp_viewable_get_children (GIMP_VIEWABLE (tool->drawable)) &&
|
|
! gimp_channel_is_empty (gimp_image_get_mask (image)))
|
|
{
|
|
orig_buffer = gimp_drawable_transform_cut (tool->drawable,
|
|
context,
|
|
&orig_offset_x,
|
|
&orig_offset_y,
|
|
&new_layer);
|
|
}
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_SELECTION:
|
|
orig_buffer = g_object_ref (gimp_drawable_get_buffer (GIMP_DRAWABLE (active_item)));
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_PATH:
|
|
break;
|
|
}
|
|
|
|
/* Send the request for the transformation to the tool...
|
|
*/
|
|
new_buffer = GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->transform (tr_tool,
|
|
active_item,
|
|
orig_buffer,
|
|
orig_offset_x,
|
|
orig_offset_y,
|
|
&new_offset_x,
|
|
&new_offset_y);
|
|
|
|
if (orig_buffer)
|
|
g_object_unref (orig_buffer);
|
|
|
|
switch (options->type)
|
|
{
|
|
case GIMP_TRANSFORM_TYPE_LAYER:
|
|
if (new_buffer)
|
|
{
|
|
/* paste the new transformed image to the image...also implement
|
|
* undo...
|
|
*/
|
|
gimp_drawable_transform_paste (tool->drawable, new_buffer,
|
|
new_offset_x, new_offset_y,
|
|
new_layer);
|
|
g_object_unref (new_buffer);
|
|
}
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_SELECTION:
|
|
if (new_buffer)
|
|
{
|
|
gimp_channel_push_undo (GIMP_CHANNEL (active_item), NULL);
|
|
|
|
gimp_drawable_set_buffer (GIMP_DRAWABLE (active_item),
|
|
FALSE, NULL, new_buffer);
|
|
g_object_unref (new_buffer);
|
|
}
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_PATH:
|
|
/* Nothing to be done */
|
|
break;
|
|
}
|
|
|
|
gimp_image_undo_push (image, GIMP_TYPE_TRANSFORM_TOOL_UNDO,
|
|
GIMP_UNDO_TRANSFORM, NULL,
|
|
0,
|
|
"transform-tool", tr_tool,
|
|
NULL);
|
|
|
|
gimp_image_undo_group_end (image);
|
|
|
|
/* We're done dirtying the image, and would like to be restarted if
|
|
* the image gets dirty while the tool exists
|
|
*/
|
|
gimp_tool_control_pop_preserve (tool->control);
|
|
|
|
gimp_unset_busy (display->gimp);
|
|
|
|
gimp_image_flush (image);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_halt (GimpTransformTool *tr_tool)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (tr_tool);
|
|
|
|
if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tr_tool)))
|
|
gimp_draw_tool_stop (GIMP_DRAW_TOOL (tr_tool));
|
|
|
|
tr_tool->function = TRANSFORM_CREATING;
|
|
|
|
if (tr_tool->gui)
|
|
gimp_tool_gui_hide (tr_tool->gui);
|
|
|
|
if (tr_tool->redo_list)
|
|
{
|
|
g_list_free_full (tr_tool->redo_list, gimp_transform_tool_free_trans);
|
|
tr_tool->redo_list = NULL;
|
|
}
|
|
|
|
if (tr_tool->undo_list)
|
|
{
|
|
g_list_free_full (tr_tool->undo_list, gimp_transform_tool_free_trans);
|
|
tr_tool->undo_list = NULL;
|
|
tr_tool->prev_trans_info = NULL;
|
|
}
|
|
|
|
tool->display = NULL;
|
|
tool->drawable = NULL;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_set_function (GimpTransformTool *tr_tool,
|
|
TransformAction function)
|
|
{
|
|
if (function != tr_tool->function)
|
|
{
|
|
if (tr_tool->handles[tr_tool->function] &&
|
|
gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tr_tool)))
|
|
{
|
|
gimp_canvas_item_set_highlight (tr_tool->handles[tr_tool->function],
|
|
FALSE);
|
|
}
|
|
|
|
tr_tool->function = function;
|
|
|
|
if (tr_tool->handles[tr_tool->function] &&
|
|
gimp_draw_tool_is_active (GIMP_DRAW_TOOL (tr_tool)))
|
|
{
|
|
gimp_canvas_item_set_highlight (tr_tool->handles[tr_tool->function],
|
|
TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_transform_bounding_box (GimpTransformTool *tr_tool)
|
|
{
|
|
g_return_if_fail (GIMP_IS_TRANSFORM_TOOL (tr_tool));
|
|
|
|
gimp_matrix3_transform_point (&tr_tool->transform,
|
|
tr_tool->x1, tr_tool->y1,
|
|
&tr_tool->tx1, &tr_tool->ty1);
|
|
gimp_matrix3_transform_point (&tr_tool->transform,
|
|
tr_tool->x2, tr_tool->y1,
|
|
&tr_tool->tx2, &tr_tool->ty2);
|
|
gimp_matrix3_transform_point (&tr_tool->transform,
|
|
tr_tool->x1, tr_tool->y2,
|
|
&tr_tool->tx3, &tr_tool->ty3);
|
|
gimp_matrix3_transform_point (&tr_tool->transform,
|
|
tr_tool->x2, tr_tool->y2,
|
|
&tr_tool->tx4, &tr_tool->ty4);
|
|
gimp_matrix3_transform_point (&tr_tool->transform,
|
|
tr_tool->px, tr_tool->py,
|
|
&tr_tool->tpx, &tr_tool->tpy);
|
|
|
|
/* don't transform these */
|
|
tr_tool->tpx = tr_tool->px;
|
|
tr_tool->tpy = tr_tool->py;
|
|
|
|
tr_tool->tcx = (tr_tool->tx1 +
|
|
tr_tool->tx2 +
|
|
tr_tool->tx3 +
|
|
tr_tool->tx4) / 4.0;
|
|
tr_tool->tcy = (tr_tool->ty1 +
|
|
tr_tool->ty2 +
|
|
tr_tool->ty3 +
|
|
tr_tool->ty4) / 4.0;
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_bounds (GimpTransformTool *tr_tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tr_tool);
|
|
GimpImage *image = gimp_display_get_image (display);
|
|
|
|
switch (options->type)
|
|
{
|
|
case GIMP_TRANSFORM_TYPE_LAYER:
|
|
{
|
|
GimpDrawable *drawable;
|
|
gint offset_x;
|
|
gint offset_y;
|
|
|
|
drawable = gimp_image_get_active_drawable (image);
|
|
|
|
gimp_item_get_offset (GIMP_ITEM (drawable), &offset_x, &offset_y);
|
|
|
|
gimp_item_mask_bounds (GIMP_ITEM (drawable),
|
|
&tr_tool->x1, &tr_tool->y1,
|
|
&tr_tool->x2, &tr_tool->y2);
|
|
tr_tool->x1 += offset_x;
|
|
tr_tool->y1 += offset_y;
|
|
tr_tool->x2 += offset_x;
|
|
tr_tool->y2 += offset_y;
|
|
}
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_SELECTION:
|
|
case GIMP_TRANSFORM_TYPE_PATH:
|
|
gimp_channel_bounds (gimp_image_get_mask (image),
|
|
&tr_tool->x1, &tr_tool->y1,
|
|
&tr_tool->x2, &tr_tool->y2);
|
|
break;
|
|
}
|
|
|
|
tr_tool->aspect = ((gdouble) (tr_tool->x2 - tr_tool->x1) /
|
|
(gdouble) (tr_tool->y2 - tr_tool->y1));
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_handles_recalc (GimpTransformTool *tr_tool,
|
|
GimpDisplay *display,
|
|
gint *handle_w,
|
|
gint *handle_h)
|
|
{
|
|
gint dx1, dy1;
|
|
gint dx2, dy2;
|
|
gint dx3, dy3;
|
|
gint dx4, dy4;
|
|
gint x1, y1;
|
|
gint x2, y2;
|
|
|
|
gimp_display_shell_transform_xy (gimp_display_get_shell (display),
|
|
tr_tool->tx1, tr_tool->ty1,
|
|
&dx1, &dy1);
|
|
gimp_display_shell_transform_xy (gimp_display_get_shell (display),
|
|
tr_tool->tx2, tr_tool->ty2,
|
|
&dx2, &dy2);
|
|
gimp_display_shell_transform_xy (gimp_display_get_shell (display),
|
|
tr_tool->tx3, tr_tool->ty3,
|
|
&dx3, &dy3);
|
|
gimp_display_shell_transform_xy (gimp_display_get_shell (display),
|
|
tr_tool->tx4, tr_tool->ty4,
|
|
&dx4, &dy4);
|
|
|
|
x1 = MIN4 (dx1, dx2, dx3, dx4);
|
|
y1 = MIN4 (dy1, dy2, dy3, dy4);
|
|
x2 = MAX4 (dx1, dx2, dx3, dx4);
|
|
y2 = MAX4 (dy1, dy2, dy3, dy4);
|
|
|
|
*handle_w = CLAMP ((x2 - x1) / 3,
|
|
MIN_HANDLE_SIZE, GIMP_TOOL_HANDLE_SIZE_LARGE);
|
|
*handle_h = CLAMP ((y2 - y1) / 3,
|
|
MIN_HANDLE_SIZE, GIMP_TOOL_HANDLE_SIZE_LARGE);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_dialog (GimpTransformTool *tr_tool)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (tr_tool);
|
|
GimpToolInfo *tool_info = tool->tool_info;
|
|
GimpDisplayShell *shell;
|
|
const gchar *icon_name;
|
|
|
|
if (! GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog)
|
|
return;
|
|
|
|
g_return_if_fail (tool->display != NULL);
|
|
|
|
shell = gimp_display_get_shell (tool->display);
|
|
|
|
icon_name = gimp_viewable_get_icon_name (GIMP_VIEWABLE (tool_info));
|
|
|
|
tr_tool->gui = gimp_tool_gui_new (tool_info,
|
|
tool_info->blurb,
|
|
gtk_widget_get_screen (GTK_WIDGET (shell)),
|
|
gimp_widget_get_monitor (GTK_WIDGET (shell)),
|
|
TRUE,
|
|
|
|
GIMP_STOCK_RESET, RESPONSE_RESET,
|
|
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
|
|
icon_name, GTK_RESPONSE_OK,
|
|
|
|
NULL);
|
|
|
|
gimp_tool_gui_set_auto_overlay (tr_tool->gui, TRUE);
|
|
gimp_tool_gui_set_default_response (tr_tool->gui, GTK_RESPONSE_OK);
|
|
|
|
gimp_tool_gui_set_alternative_button_order (tr_tool->gui,
|
|
RESPONSE_RESET,
|
|
GTK_RESPONSE_OK,
|
|
GTK_RESPONSE_CANCEL,
|
|
-1);
|
|
|
|
g_signal_connect (tr_tool->gui, "response",
|
|
G_CALLBACK (gimp_transform_tool_response),
|
|
tr_tool);
|
|
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->dialog (tr_tool);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_prepare (GimpTransformTool *tr_tool,
|
|
GimpDisplay *display)
|
|
{
|
|
if (tr_tool->gui)
|
|
{
|
|
GimpImage *image = gimp_display_get_image (display);
|
|
GimpItem *item = gimp_transform_tool_get_active_item (tr_tool, image);
|
|
|
|
gimp_tool_gui_set_shell (tr_tool->gui, gimp_display_get_shell (display));
|
|
gimp_tool_gui_set_viewable (tr_tool->gui, GIMP_VIEWABLE (item));
|
|
}
|
|
|
|
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->prepare)
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->prepare (tr_tool);
|
|
}
|
|
|
|
void
|
|
gimp_transform_tool_recalc_matrix (GimpTransformTool *tr_tool)
|
|
{
|
|
g_return_if_fail (GIMP_IS_TRANSFORM_TOOL (tr_tool));
|
|
|
|
if (GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->recalc_matrix)
|
|
GIMP_TRANSFORM_TOOL_GET_CLASS (tr_tool)->recalc_matrix (tr_tool);
|
|
|
|
gimp_transform_tool_transform_bounding_box (tr_tool);
|
|
|
|
gimp_transform_tool_dialog_update (tr_tool);
|
|
|
|
if (tr_tool->gui)
|
|
gimp_tool_gui_show (tr_tool->gui);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_response (GimpToolGui *gui,
|
|
gint response_id,
|
|
GimpTransformTool *tr_tool)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (tr_tool);
|
|
GimpDisplay *display = tool->display;
|
|
gint i;
|
|
|
|
switch (response_id)
|
|
{
|
|
case RESPONSE_RESET:
|
|
/* Move all undo events to redo, and pop off the first
|
|
* one as that's the current one, which always sits on
|
|
* the undo_list
|
|
*/
|
|
tr_tool->redo_list =
|
|
g_list_remove (g_list_concat (g_list_reverse (tr_tool->undo_list),
|
|
tr_tool->redo_list),
|
|
tr_tool->old_trans_info);
|
|
tr_tool->prev_trans_info = tr_tool->old_trans_info;
|
|
tr_tool->undo_list = g_list_prepend (NULL,
|
|
tr_tool->prev_trans_info);
|
|
|
|
gimp_transform_tool_update_sensitivity (tr_tool);
|
|
|
|
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
|
|
|
|
/* Restore the previous transformation info */
|
|
for (i = 0; i < TRANS_INFO_SIZE; i++)
|
|
{
|
|
tr_tool->trans_info[i] = (*tr_tool->prev_trans_info)[i];
|
|
}
|
|
|
|
/* reget the selection bounds */
|
|
gimp_transform_tool_bounds (tr_tool, display);
|
|
|
|
/* recalculate the tool's transformation matrix */
|
|
gimp_transform_tool_recalc_matrix (tr_tool);
|
|
|
|
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
|
|
|
|
/* update the undo actions / menu items */
|
|
gimp_image_flush (gimp_display_get_image (display));
|
|
break;
|
|
|
|
case GTK_RESPONSE_OK:
|
|
g_return_if_fail (display != NULL);
|
|
gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display);
|
|
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
|
|
break;
|
|
|
|
default:
|
|
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
|
|
|
|
/* update the undo actions / menu items */
|
|
if (display)
|
|
gimp_image_flush (gimp_display_get_image (display));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_free_trans (gpointer data)
|
|
{
|
|
g_slice_free (TransInfo, data);
|
|
}
|
|
|
|
static void
|
|
gimp_transform_tool_update_sensitivity (GimpTransformTool *tr_tool)
|
|
{
|
|
if (! tr_tool->gui)
|
|
return;
|
|
|
|
gimp_tool_gui_set_response_sensitive (tr_tool->gui, RESPONSE_RESET,
|
|
g_list_next (tr_tool->undo_list) != NULL);
|
|
}
|
|
|
|
static GimpItem *
|
|
gimp_transform_tool_get_active_item (GimpTransformTool *tr_tool,
|
|
GimpImage *image)
|
|
{
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tr_tool);
|
|
|
|
switch (options->type)
|
|
{
|
|
case GIMP_TRANSFORM_TYPE_LAYER:
|
|
return GIMP_ITEM (gimp_image_get_active_drawable (image));
|
|
|
|
case GIMP_TRANSFORM_TYPE_SELECTION:
|
|
{
|
|
GimpChannel *selection_mask = gimp_image_get_mask (image);
|
|
if (selection_mask && gimp_channel_is_empty (selection_mask))
|
|
return NULL;
|
|
else
|
|
return GIMP_ITEM (selection_mask);
|
|
}
|
|
|
|
case GIMP_TRANSFORM_TYPE_PATH:
|
|
return GIMP_ITEM (gimp_image_get_active_vectors (image));
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static GimpItem *
|
|
gimp_transform_tool_check_active_item (GimpTransformTool *tr_tool,
|
|
GimpImage *image,
|
|
GError **error)
|
|
{
|
|
GimpTransformOptions *options = GIMP_TRANSFORM_TOOL_GET_OPTIONS (tr_tool);
|
|
GimpItem *item;
|
|
const gchar *null_message = NULL;
|
|
const gchar *locked_message = NULL;
|
|
|
|
item = gimp_transform_tool_get_active_item (tr_tool, image);
|
|
|
|
switch (options->type)
|
|
{
|
|
case GIMP_TRANSFORM_TYPE_LAYER:
|
|
null_message = _("There is no layer to transform.");
|
|
|
|
if (item && gimp_item_is_content_locked (item))
|
|
locked_message = _("The active layer's pixels are locked.");
|
|
else
|
|
locked_message = _("The active layer's position and size are locked.");
|
|
|
|
if (item && ! gimp_item_is_visible (item))
|
|
{
|
|
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
|
|
_("The active layer is not visible."));
|
|
return NULL;
|
|
}
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_SELECTION:
|
|
null_message = _("There is no selection to transform.");
|
|
|
|
/* cannot happen, so don't translate these messages */
|
|
if (item && gimp_item_is_content_locked (item))
|
|
locked_message = "The selection's pixels are locked.";
|
|
else
|
|
locked_message = "The selection's position and size are locked.";
|
|
break;
|
|
|
|
case GIMP_TRANSFORM_TYPE_PATH:
|
|
null_message = _("There is no path to transform.");
|
|
|
|
if (item && gimp_item_is_content_locked (item))
|
|
locked_message = _("The active path's strokes are locked.");
|
|
else
|
|
locked_message = _("The active path's position is locked.");
|
|
break;
|
|
}
|
|
|
|
if (! item)
|
|
{
|
|
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED, null_message);
|
|
return NULL;
|
|
}
|
|
|
|
if (gimp_item_is_content_locked (item) ||
|
|
gimp_item_is_position_locked (item))
|
|
{
|
|
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED, locked_message);
|
|
return NULL;
|
|
}
|
|
|
|
return item;
|
|
}
|