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gimp/app/core/gimpcontext.h

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontext.h: Copyright (C) 1999 Michael Natterer <mitch@gimp.org>
*
* 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_CONTEXT_H__
#define __GIMP_CONTEXT_H__
#include "gimpobject.h"
#define GIMP_TYPE_CONTEXT (gimp_context_get_type ())
#define GIMP_CONTEXT(obj) (GTK_CHECK_CAST ((obj), GIMP_TYPE_CONTEXT, GimpContext))
#define GIMP_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_CAST (klass, GIMP_TYPE_CONTEXT, GimpContextClass))
#define GIMP_IS_CONTEXT(obj) (GTK_CHECK_TYPE ((obj), GIMP_TYPE_CONTEXT))
#define GIMP_IS_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CONTEXT))
typedef enum
{
GIMP_CONTEXT_ARG_IMAGE,
GIMP_CONTEXT_ARG_DISPLAY,
GIMP_CONTEXT_ARG_TOOL,
GIMP_CONTEXT_ARG_FOREGROUND,
GIMP_CONTEXT_ARG_BACKGROUND,
GIMP_CONTEXT_ARG_OPACITY,
GIMP_CONTEXT_ARG_PAINT_MODE,
GIMP_CONTEXT_ARG_BRUSH,
GIMP_CONTEXT_ARG_PATTERN,
GIMP_CONTEXT_ARG_GRADIENT,
GIMP_CONTEXT_ARG_PALETTE,
GIMP_CONTEXT_NUM_ARGS
} GimpContextArgType;
typedef enum
{
GIMP_CONTEXT_IMAGE_MASK = 1 << 0,
GIMP_CONTEXT_DISPLAY_MASK = 1 << 1,
GIMP_CONTEXT_TOOL_MASK = 1 << 2,
GIMP_CONTEXT_FOREGROUND_MASK = 1 << 3,
GIMP_CONTEXT_BACKGROUND_MASK = 1 << 4,
GIMP_CONTEXT_OPACITY_MASK = 1 << 5,
GIMP_CONTEXT_PAINT_MODE_MASK = 1 << 6,
GIMP_CONTEXT_BRUSH_MASK = 1 << 7,
GIMP_CONTEXT_PATTERN_MASK = 1 << 8,
GIMP_CONTEXT_GRADIENT_MASK = 1 << 9,
GIMP_CONTEXT_PALETTE_MASK = 1 << 10,
/* aliases */
GIMP_CONTEXT_PAINT_ARGS_MASK = (GIMP_CONTEXT_FOREGROUND_MASK |
GIMP_CONTEXT_BACKGROUND_MASK |
GIMP_CONTEXT_OPACITY_MASK |
GIMP_CONTEXT_PAINT_MODE_MASK |
GIMP_CONTEXT_BRUSH_MASK |
GIMP_CONTEXT_PATTERN_MASK |
GIMP_CONTEXT_GRADIENT_MASK),
GIMP_CONTEXT_ALL_ARGS_MASK = (GIMP_CONTEXT_IMAGE_MASK |
GIMP_CONTEXT_DISPLAY_MASK |
GIMP_CONTEXT_TOOL_MASK |
GIMP_CONTEXT_PALETTE_MASK |
GIMP_CONTEXT_PAINT_ARGS_MASK)
} GimpContextArgMask;
typedef struct _GimpContextClass GimpContextClass;
struct _GimpContext
{
GimpObject parent_instance;
GimpContext *parent;
guint32 defined_args;
GimpImage *image;
GDisplay *display;
GimpToolInfo *tool_info;
gchar *tool_name;
GimpRGB foreground;
GimpRGB background;
gdouble opacity;
LayerModeEffects paint_mode;
GimpBrush *brush;
gchar *brush_name;
GimpPattern *pattern;
gchar *pattern_name;
GimpGradient *gradient;
gchar *gradient_name;
GimpPalette *palette;
gchar *palette_name;
};
struct _GimpContextClass
{
GimpObjectClass parent_class;
void (* image_changed) (GimpContext *context,
GimpImage *image);
void (* display_changed) (GimpContext *context,
GDisplay *display);
void (* tool_changed) (GimpContext *context,
GimpToolInfo *tool_info);
void (* foreground_changed) (GimpContext *context,
GimpRGB *color);
void (* background_changed) (GimpContext *context,
GimpRGB *color);
void (* opacity_changed) (GimpContext *context,
gdouble opacity);
void (* paint_mode_changed) (GimpContext *context,
LayerModeEffects paint_mode);
void (* brush_changed) (GimpContext *context,
GimpBrush *brush);
void (* pattern_changed) (GimpContext *context,
GimpPattern *pattern);
void (* gradient_changed) (GimpContext *context,
GimpGradient *gradient);
void (* palette_changed) (GimpContext *context,
GimpPalette *palette);
};
GtkType gimp_context_get_type (void);
GimpContext * gimp_context_new (const gchar *name,
GimpContext *template);
/* TODO: - gimp_context_find ()
*
* probably interacting with the context manager:
* - gimp_context_push () which will call gimp_context_set_parent()
* - gimp_context_push_new () to do a GL-style push
* - gimp_context_pop ()
*
* a proper mechanism to prevent silly operations like pushing
* the user context to some client stack etc.
*/
/* to be used by the context management system only
*/
void gimp_context_set_current (GimpContext *context);
void gimp_context_set_user (GimpContext *context);
void gimp_context_set_default (GimpContext *context);
/* these are always available
*/
GimpContext * gimp_context_get_current (void);
GimpContext * gimp_context_get_user (void);
GimpContext * gimp_context_get_default (void);
GimpContext * gimp_context_get_standard (void);
/* functions for manipulating a single context
*/
const gchar * gimp_context_get_name (const GimpContext *context);
void gimp_context_set_name (GimpContext *context,
const gchar *name);
GimpContext * gimp_context_get_parent (const GimpContext *context);
void gimp_context_set_parent (GimpContext *context,
GimpContext *parent);
void gimp_context_unset_parent (GimpContext *context);
/* define / undefinine context arguments
*
* the value of an undefined argument will be taken from the parent context.
*/
void gimp_context_define_arg (GimpContext *context,
GimpContextArgType arg,
gboolean defined);
gboolean gimp_context_arg_defined (GimpContext *context,
GimpContextArgType arg);
void gimp_context_define_args (GimpContext *context,
GimpContextArgMask args_mask,
gboolean defined);
/* copying context arguments
*/
void gimp_context_copy_arg (GimpContext *src,
GimpContext *dest,
GimpContextArgType arg);
void gimp_context_copy_args (GimpContext *src,
GimpContext *dest,
GimpContextArgMask args_mask);
/* manipulate by GtkType */
GimpContextArgType gimp_context_type_to_arg (GtkType type);
const gchar * gimp_context_type_to_signal_name (GtkType type);
GimpObject * gimp_context_get_by_type (GimpContext *context,
GtkType type);
void gimp_context_set_by_type (GimpContext *context,
GtkType type,
GimpObject *object);
void gimp_context_changed_by_type (GimpContext *context,
GtkType type);
/* image */
GimpImage * gimp_context_get_image (GimpContext *context);
void gimp_context_set_image (GimpContext *context,
GimpImage *image);
void gimp_context_image_changed (GimpContext *context);
/* display */
GDisplay * gimp_context_get_display (GimpContext *context);
void gimp_context_set_display (GimpContext *context,
GDisplay *display);
void gimp_context_display_changed (GimpContext *context);
/* tool */
GimpToolInfo *gimp_context_get_tool (GimpContext *context);
void gimp_context_set_tool (GimpContext *context,
GimpToolInfo *tool_info);
void gimp_context_tool_changed (GimpContext *context);
/* foreground color */
void gimp_context_get_foreground (GimpContext *context,
GimpRGB *color);
void gimp_context_set_foreground (GimpContext *context,
const GimpRGB *color);
void gimp_context_foreground_changed (GimpContext *context);
/* background color */
void gimp_context_get_background (GimpContext *context,
GimpRGB *color);
void gimp_context_set_background (GimpContext *context,
const GimpRGB *color);
void gimp_context_background_changed (GimpContext *context);
/* color utility functions */
void gimp_context_set_default_colors (GimpContext *context);
void gimp_context_swap_colors (GimpContext *context);
/* opacity */
gdouble gimp_context_get_opacity (GimpContext *context);
void gimp_context_set_opacity (GimpContext *context,
gdouble opacity);
void gimp_context_opacity_changed (GimpContext *context);
/* paint mode */
LayerModeEffects gimp_context_get_paint_mode (GimpContext *context);
void gimp_context_set_paint_mode (GimpContext *context,
LayerModeEffects paint_mode);
void gimp_context_paint_mode_changed (GimpContext *context);
/* brush */
GimpBrush * gimp_context_get_brush (GimpContext *context);
void gimp_context_set_brush (GimpContext *context,
GimpBrush *brush);
void gimp_context_brush_changed (GimpContext *context);
/* pattern */
GimpPattern * gimp_context_get_pattern (GimpContext *context);
void gimp_context_set_pattern (GimpContext *context,
GimpPattern *pattern);
void gimp_context_pattern_changed (GimpContext *context);
/* gradient */
GimpGradient * gimp_context_get_gradient (GimpContext *context);
void gimp_context_set_gradient (GimpContext *context,
GimpGradient *gradient);
void gimp_context_gradient_changed (GimpContext *context);
/* palette */
GimpPalette * gimp_context_get_palette (GimpContext *context);
void gimp_context_set_palette (GimpContext *context,
GimpPalette *palette);
void gimp_context_palette_changed (GimpContext *context);
#endif /* __GIMP_CONTEXT_H__ */
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