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/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __GIMP_TRANSFORM_TOOL_H__
#define __GIMP_TRANSFORM_TOOL_H__
#include "gimpdrawtool.h"
#include "dialogs/dialogs-types.h" /* FIXME */
/* buffer sizes for scaling information strings (for the info dialog) */
#define MAX_INFO_BUF 40
#define TRAN_INFO_SIZE 8
typedef gdouble TransInfo[TRAN_INFO_SIZE];
#define GIMP_TYPE_TRANSFORM_TOOL (gimp_transform_tool_get_type ())
#define GIMP_TRANSFORM_TOOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformTool))
#define GIMP_TRANSFORM_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformToolClass))
#define GIMP_IS_TRANSFORM_TOOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TRANSFORM_TOOL))
#define GIMP_IS_TRANSFORM_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TRANSFORM_TOOL))
#define GIMP_TRANSFORM_TOOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformToolClass))
typedef struct _GimpTransformToolClass GimpTransformToolClass;
struct _GimpTransformTool
{
GimpDrawTool parent_instance;
gdouble startx; /* starting x coord */
gdouble starty; /* starting y coord */
gdouble curx; /* current x coord */
gdouble cury; /* current y coord */
gdouble lastx; /* last x coord */
gdouble lasty; /* last y coord */
GdkModifierType state; /* state of buttons and keys */
gint x1, y1; /* upper left hand coordinate */
gint x2, y2; /* lower right hand coords */
gdouble cx, cy; /* center point (for rotation) */
gdouble tx1, ty1; /* transformed coords */
gdouble tx2, ty2;
gdouble tx3, ty3;
gdouble tx4, ty4;
gdouble tcx, tcy;
GimpMatrix3 transform; /* transformation matrix */
TransInfo trans_info; /* transformation info */
TransInfo old_trans_info; /* for cancelling a drag operation */
TileManager *original; /* pointer to original tiles */
TransformAction function; /* current tool activity */
gboolean use_grid; /* does the tool use the grid */
gboolean use_center; /* use the center handle */
gint ngx, ngy; /* number of grid lines in original
* x and y directions
*/
gdouble *grid_coords; /* x and y coordinates of the grid
* endpoints (a total of (ngx+ngy)*2
* coordinate pairs)
*/
gdouble *tgrid_coords; /* transformed grid_coords */
GimpTransformType type;
GimpTransformDirection direction;
/* transform info dialog */
const gchar *shell_desc;
const gchar *progress_text;
InfoDialog *info_dialog;
};
struct _GimpTransformToolClass
{
GimpDrawToolClass parent_class;
/* virtual functions */
void (* dialog) (GimpTransformTool *tool);
void (* dialog_update) (GimpTransformTool *tool);
void (* prepare) (GimpTransformTool *tool,
GimpDisplay *gdisp);
void (* motion) (GimpTransformTool *tool,
GimpDisplay *gdisp);
void (* recalc) (GimpTransformTool *tool,
GimpDisplay *gdisp);
TileManager * (* transform) (GimpTransformTool *tool,
GimpItem *item,
gboolean mask_empty,
GimpDisplay *gdisp);
};
GType gimp_transform_tool_get_type (void) G_GNUC_CONST;
void gimp_transform_tool_recalc (GimpTransformTool *tr_tool,
GimpDisplay *gdisp);
void gimp_transform_tool_expose_preview (GimpTransformTool *tr_tool);
#endif /* __GIMP_TRANSFORM_TOOL_H__ */
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