mirror of https://github.com/GNOME/gimp.git
133 lines
5.5 KiB
C
133 lines
5.5 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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#ifndef __GIMP_TRANSFORM_TOOL_H__
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#define __GIMP_TRANSFORM_TOOL_H__
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#include "libgimpmath/gimpmatrix.h"
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#include "gimpdrawtool.h"
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#define TRANS_INFO_SIZE 8
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typedef gdouble TransInfo[TRANS_INFO_SIZE];
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#define GIMP_TYPE_TRANSFORM_TOOL (gimp_transform_tool_get_type ())
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#define GIMP_TRANSFORM_TOOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformTool))
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#define GIMP_TRANSFORM_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformToolClass))
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#define GIMP_IS_TRANSFORM_TOOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TRANSFORM_TOOL))
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#define GIMP_IS_TRANSFORM_TOOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TRANSFORM_TOOL))
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#define GIMP_TRANSFORM_TOOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TRANSFORM_TOOL, GimpTransformToolClass))
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#define GIMP_TRANSFORM_TOOL_GET_OPTIONS(t) (GIMP_TRANSFORM_OPTIONS (gimp_tool_get_options (GIMP_TOOL (t))))
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typedef struct _GimpTransformToolClass GimpTransformToolClass;
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struct _GimpTransformTool
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{
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GimpDrawTool parent_instance;
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gdouble startx; /* starting x coord */
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gdouble starty; /* starting y coord */
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gdouble curx; /* current x coord */
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gdouble cury; /* current y coord */
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gdouble lastx; /* last x coord */
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gdouble lasty; /* last y coord */
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GdkModifierType state; /* state of buttons and keys */
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gint x1, y1; /* upper left hand coordinate */
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gint x2, y2; /* lower right hand coords */
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gdouble cx, cy; /* center point (for rotation) */
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gdouble aspect; /* original aspect ratio */
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gdouble tx1, ty1; /* transformed handle coords */
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gdouble tx2, ty2;
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gdouble tx3, ty3;
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gdouble tx4, ty4;
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gdouble tcx, tcy;
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GimpMatrix3 transform; /* transformation matrix */
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TransInfo trans_info; /* transformation info */
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TransInfo old_trans_info; /* for cancelling a drag operation */
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TileManager *original; /* pointer to original tiles */
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TransformAction function; /* current tool activity */
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gboolean use_grid; /* does the tool use the grid */
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gboolean use_handles; /* uses the corner handles */
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gboolean use_center; /* uses the center handle */
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gboolean use_mid_handles; /* use handles at midpoints of edges */
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gint handle_w; /* handle width */
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gint handle_h; /* handle height */
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gint ngx, ngy; /* number of grid lines in original
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* x and y directions
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*/
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gdouble *grid_coords; /* x and y coordinates of the grid
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* endpoints (a total of (ngx+ngy)*2
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* coordinate pairs)
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*/
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gdouble *tgrid_coords; /* transformed grid_coords */
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GimpTransformType type;
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GimpTransformDirection direction;
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const gchar *undo_desc;
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const gchar *progress_text;
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GtkWidget *dialog;
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};
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struct _GimpTransformToolClass
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{
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GimpDrawToolClass parent_class;
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/* virtual functions */
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void (* dialog) (GimpTransformTool *tool);
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void (* dialog_update) (GimpTransformTool *tool);
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void (* prepare) (GimpTransformTool *tool,
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GimpDisplay *display);
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void (* motion) (GimpTransformTool *tool,
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GimpDisplay *display);
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void (* recalc) (GimpTransformTool *tool,
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GimpDisplay *display);
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TileManager * (* transform) (GimpTransformTool *tool,
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GimpItem *item,
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gboolean mask_empty,
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GimpDisplay *display);
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};
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GType gimp_transform_tool_get_type (void) G_GNUC_CONST;
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void gimp_transform_tool_recalc (GimpTransformTool *tr_tool,
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GimpDisplay *display);
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void gimp_transform_tool_expose_preview (GimpTransformTool *tr_tool);
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#endif /* __GIMP_TRANSFORM_TOOL_H__ */
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