mirror of https://github.com/GNOME/gimp.git
187 lines
7.8 KiB
C
187 lines
7.8 KiB
C
/* The GIMP -- an 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __PAINT_CORE_H__
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#define __PAINT_CORE_H__
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#include "apptypes.h"
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#include "draw_core.h"
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#include "temp_buf.h"
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#include "gimpbrush.h"
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#include "gimpdrawableF.h"
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/* the different states that the painting function can be called with */
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#define INIT_PAINT 0 /* Setup PaintFunc internals */
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#define MOTION_PAINT 1 /* PaintFunc performs motion-related rendering */
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#define PAUSE_PAINT 2 /* Unused. Reserved */
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#define RESUME_PAINT 3 /* Unused. Reserved */
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#define FINISH_PAINT 4 /* Cleanup and/or reset PaintFunc operation */
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#define PRETRACE_PAINT 5 /* PaintFunc performs window tracing activity prior to rendering */
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#define POSTTRACE_PAINT 6 /* PaintFunc performs window tracing activity following rendering */
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typedef enum /*< skip >*/
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{
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TOOL_CAN_HANDLE_CHANGING_BRUSH = 0x0001, /* Set for tools that don't mind
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* if the brush changes while
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* painting.
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*/
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TOOL_TRACES_ON_WINDOW /* Set for tools that perform temporary
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* rendering directly to the window. These
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* require sequencing with gdisplay_flush()
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* routines. See clone.c for example.
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*/
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} ToolFlags;
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typedef void * (* PaintFunc) (PaintCore *, GimpDrawable *, int);
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struct _paint_core
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{
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DrawCore * core; /* Core select object */
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double startx; /* starting x coord */
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double starty; /* starting y coord */
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double startpressure; /* starting pressure */
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double startxtilt; /* starting xtilt */
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double startytilt; /* starting ytilt */
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#ifdef GTK_HAVE_SIX_VALUATORS
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double startwheel; /* starting wheel */
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#endif /* GTK_HAVE_SIX_VALUATORS */
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double curx; /* current x coord */
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double cury; /* current y coord */
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double curpressure; /* current pressure */
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double curxtilt; /* current xtilt */
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double curytilt; /* current ytilt */
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#ifdef GTK_HAVE_SIX_VALUATORS
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double curwheel; /* current wheel */
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#endif /* GTK_HAVE_SIX_VALUATORS */
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double lastx; /* last x coord */
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double lasty; /* last y coord */
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double lastpressure; /* last pressure */
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double lastxtilt; /* last xtilt */
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double lastytilt; /* last ytilt */
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#ifdef GTK_HAVE_SIX_VALUATORS
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double lastwheel; /* last wheel */
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#endif /* GTK_HAVE_SIX_VALUATORS */
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int state; /* state of buttons and keys */
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double distance; /* distance traveled by brush */
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double pixel_dist; /* distance in pixels */
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double spacing; /* spacing */
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int x1, y1; /* image space coordinate */
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int x2, y2; /* image space coords */
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GimpBrush * brush; /* current brush */
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PaintFunc paint_func; /* painting function */
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int pick_colors; /* pick color if ctrl or alt is pressed */
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int pick_state; /* was ctrl or alt pressed when clicked? */
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ToolFlags flags; /* tool flags, see ToolFlags above */
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guint context_id; /* for the statusbar */
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};
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extern PaintCore non_gui_paint_core;
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/* Special undo type */
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typedef struct _paint_undo PaintUndo;
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struct _paint_undo
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{
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int tool_ID;
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double lastx;
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double lasty;
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double lastpressure;
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double lastxtilt;
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double lastytilt;
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#ifdef GTK_HAVE_SIX_VALUATORS
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double lastwheel;
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#endif /* GTK_HAVE_SIX_VALUATORS */
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};
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/* paint tool action functions */
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void paint_core_button_press (Tool *tool, GdkEventButton *bevent, gpointer gdisp_ptr);
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void paint_core_button_release (Tool *tool, GdkEventButton *bevent, gpointer gdisp_ptr);
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void paint_core_motion (Tool *tool, GdkEventMotion *mevent, gpointer gdisp_ptr);
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void paint_core_cursor_update (Tool *tool, GdkEventMotion *mevent, gpointer gdisp_ptr);
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void paint_core_control (Tool *tool,
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ToolAction action,
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gpointer gdisp_ptr);
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/* paint tool functions */
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void paint_core_no_draw (Tool *tool);
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Tool * paint_core_new (ToolType type);
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void paint_core_free (Tool *tool);
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int paint_core_init (PaintCore *paint_core,
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GimpDrawable *drawable,
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gdouble x,
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gdouble y);
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void paint_core_interpolate (PaintCore *paint_core,
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GimpDrawable *drawable);
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void paint_core_finish (PaintCore *paint_core,
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GimpDrawable *drawable,
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gint tool_ID);
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void paint_core_cleanup (void);
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void paint_core_get_color_from_gradient (PaintCore *paint_core,
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gdouble gradient_length,
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gdouble *r,
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gdouble *g,
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gdouble *b,
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gdouble *a,
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GradientPaintMode mode);
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/* paint tool painting functions */
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TempBuf * paint_core_get_paint_area (PaintCore *paint_core,
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GimpDrawable *drawable,
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gdouble scale);
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TempBuf * paint_core_get_orig_image (PaintCore *paint_core,
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GimpDrawable *drawable,
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gint x1,
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gint y1,
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gint x2,
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gint y2);
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void paint_core_paste_canvas (PaintCore *paint_core,
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GimpDrawable *drawable,
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gint brush_opacity,
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gint image_opacity,
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LayerModeEffects paint_mode,
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BrushApplicationMode brush_hardness,
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gdouble brush_scale,
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PaintApplicationMode mode);
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void paint_core_replace_canvas (PaintCore *paint_core,
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GimpDrawable *drawable,
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gint brush_opacity,
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gint image_opacity,
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BrushApplicationMode brush_hardness,
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gdouble brush_scale,
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PaintApplicationMode mode);
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void paint_core_color_area_with_pixmap (PaintCore *paint_core,
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GimpImage *dest,
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GimpDrawable *drawable,
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TempBuf *area,
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gdouble scale,
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BrushApplicationMode mode);
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#endif /* __PAINT_CORE_H__ */
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