a8292fedf2
Add an optional GimpTransformGridTool::radjust() virtual function,
which subclasses can implement to radjust the transformation based
on the current state of the display, such that it's easy to
control. This is especially useful when the image is zoomed-in,
and the transform handles, which are initially across the layer
bounds, are out of view.
When a transform tool implements radjust(), show a "Readjust"
button in the tool GUI. While readjusting the transformation, we
modify the opposite transformation such that the overall transform
remains unchanged, as if both transform-directions were linked, so
that only the transform grid is readjusted.
(cherry picked from commit 5055dd10d5)
112 lines
5.2 KiB
C
112 lines
5.2 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __GIMP_TRANSFORM_GRID_TOOL_H__
|
|
#define __GIMP_TRANSFORM_GRID_TOOL_H__
|
|
|
|
|
|
#include "gimptransformtool.h"
|
|
|
|
|
|
/* This is not the number of items in the enum above, but the max size
|
|
* of the enums at the top of each transformation tool, stored in
|
|
* trans_info and related
|
|
*/
|
|
#define TRANS_INFO_SIZE 17
|
|
|
|
typedef gdouble TransInfo[TRANS_INFO_SIZE];
|
|
|
|
|
|
#define GIMP_TYPE_TRANSFORM_GRID_TOOL (gimp_transform_grid_tool_get_type ())
|
|
#define GIMP_TRANSFORM_GRID_TOOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TRANSFORM_GRID_TOOL, GimpTransformGridTool))
|
|
#define GIMP_TRANSFORM_GRID_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TRANSFORM_GRID_TOOL, GimpTransformGridToolClass))
|
|
#define GIMP_IS_TRANSFORM_GRID_TOOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TRANSFORM_GRID_TOOL))
|
|
#define GIMP_IS_TRANSFORM_GRID_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TRANSFORM_GRID_TOOL))
|
|
#define GIMP_TRANSFORM_GRID_TOOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TRANSFORM_GRID_TOOL, GimpTransformGridToolClass))
|
|
|
|
#define GIMP_TRANSFORM_GRID_TOOL_GET_OPTIONS(t) (GIMP_TRANSFORM_GRID_OPTIONS (gimp_tool_get_options (GIMP_TOOL (t))))
|
|
|
|
|
|
typedef struct _GimpTransformGridToolClass GimpTransformGridToolClass;
|
|
|
|
struct _GimpTransformGridTool
|
|
{
|
|
GimpTransformTool parent_instance;
|
|
|
|
TransInfo init_trans_info; /* initial transformation info */
|
|
TransInfo trans_infos[2]; /* forward/backward transformation info */
|
|
gdouble *trans_info; /* current transformation info */
|
|
GList *undo_list; /* list of all states,
|
|
head is current == prev_trans_info,
|
|
tail is original == old_trans_info */
|
|
GList *redo_list; /* list of all undone states,
|
|
NULL when nothing undone */
|
|
|
|
GimpItem *hidden_item; /* the item that was hidden during
|
|
the transform */
|
|
|
|
GimpToolWidget *widget;
|
|
GimpToolWidget *grab_widget;
|
|
GimpCanvasItem *preview;
|
|
GimpCanvasItem *boundary_in;
|
|
GimpCanvasItem *boundary_out;
|
|
GPtrArray *strokes;
|
|
|
|
GimpToolGui *gui;
|
|
};
|
|
|
|
struct _GimpTransformGridToolClass
|
|
{
|
|
GimpTransformToolClass parent_class;
|
|
|
|
/* virtual functions */
|
|
gboolean (* info_to_matrix) (GimpTransformGridTool *tg_tool,
|
|
GimpMatrix3 *transform);
|
|
void (* matrix_to_info) (GimpTransformGridTool *tg_tool,
|
|
const GimpMatrix3 *transform);
|
|
gchar * (* get_undo_desc) (GimpTransformGridTool *tg_tool);
|
|
void (* dialog) (GimpTransformGridTool *tg_tool);
|
|
void (* dialog_update) (GimpTransformGridTool *tg_tool);
|
|
void (* prepare) (GimpTransformGridTool *tg_tool);
|
|
void (* readjust) (GimpTransformGridTool *tg_tool);
|
|
GimpToolWidget * (* get_widget) (GimpTransformGridTool *tg_tool);
|
|
void (* update_widget) (GimpTransformGridTool *tg_tool);
|
|
void (* widget_changed) (GimpTransformGridTool *tg_tool);
|
|
GeglBuffer * (* transform) (GimpTransformGridTool *tg_tool,
|
|
GimpItem *item,
|
|
GeglBuffer *orig_buffer,
|
|
gint orig_offset_x,
|
|
gint orig_offset_y,
|
|
GimpColorProfile **buffer_profile,
|
|
gint *new_offset_x,
|
|
gint *new_offset_y);
|
|
|
|
const gchar *ok_button_label;
|
|
};
|
|
|
|
|
|
GType gimp_transform_grid_tool_get_type (void) G_GNUC_CONST;
|
|
|
|
gboolean gimp_transform_grid_tool_info_to_matrix (GimpTransformGridTool *tg_tool,
|
|
GimpMatrix3 *transform);
|
|
void gimp_transform_grid_tool_matrix_to_info (GimpTransformGridTool *tg_tool,
|
|
const GimpMatrix3 *transform);
|
|
|
|
void gimp_transform_grid_tool_push_internal_undo (GimpTransformGridTool *tg_tool);
|
|
|
|
|
|
#endif /* __GIMP_TRANSFORM_GRID_TOOL_H__ */
|