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gimp/app/gimpcontext.h
Tor Lillqvist f6858e21d1 Actually use the enum types GimpImageType, GimpImageBaseType, 
* app/*.[ch]: Actually use the enum types GimpImageType,
	GimpImageBaseType, LayerModeEffects, PaintApplicationMode,
	BrushApplicationMode, GimpFillType and ConvertPaletteType, instead
	of just int or gint. Hopefully I catched most of the places
	where these should be used.

	Add an enum ConvolutionType, suffix the too general constants
	NORMAL, ABSOLUTE and NEGATIVE with _CONVOL. Use NORMAL_MODE
	instead of NORMAL in some places (this was what was intended). Fix
	some minor gccisms.

	* app/apptypes.h: New file. This file contains the above
	enumeration types, and some opaque struct typedefs. It was
	necessary to collect these in one header that doesn't include
	other headers, because when we started using the above mentioned
	types in the headers, all hell broke loose because of the
	spaghetti-like cross-inclusion mess between headers.

	(An example: Header A includes header B, which includes header C
	which includes A. B uses a type defined in A. This is not defined,
	because A hasn't defined it yet at the point where it includes B,
	and A included from B of course is skipped as we already are
	reading A.)
1999-08-18 23:41:39 +00:00

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <glib.h>
#include "gdisplay.h"
#include "gimpimageF.h"
#include "gimpobjectP.h"
#define GIMP_TYPE_CONTEXT (gimp_context_get_type ())
#define GIMP_CONTEXT(obj) (GIMP_CHECK_CAST ((obj), GIMP_TYPE_CONTEXT, GimpContext))
#define GIMP_CONTEXT_CLASS(klass) (GIMP_CHECK_CLASS_CAST (klass, GIMP_TYPE_CONTEXT, GimpContextClass))
#define GIMP_IS_CONTEXT(obj) (GIMP_CHECK_TYPE ((obj), GIMP_TYPE_CONTEXT))
#define GIMP_IS_CONTEXT_CLASS(klass) (GIMP_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CONTEXT))
typedef enum
{
GIMP_CONTEXT_ARG_OPACITY = 1 << 0,
GIMP_CONTEXT_ARG_PAINT_MODE = 1 << 1,
GIMP_CONTEXT_ARG_IMAGE = 1 << 2,
GIMP_CONTEXT_ARG_DISPLAY = 1 << 3,
/* aliases
*/
GIMP_CONTEXT_ARG_PAINT = GIMP_CONTEXT_ARG_OPACITY |
GIMP_CONTEXT_ARG_PAINT_MODE,
GIMP_CONTEXT_ARG_ALL = GIMP_CONTEXT_ARG_PAINT |
GIMP_CONTEXT_ARG_IMAGE |
GIMP_CONTEXT_ARG_DISPLAY
} GimpContextArgs;
typedef struct _GimpContext GimpContext;
typedef struct _GimpContextClass GimpContextClass;
struct _GimpContext
{
GimpObject object;
gchar *name;
GimpContext *parent;
/* FIXME: the solution of having a boolean for each attribute and the
* name "defined" need some brainstorming
*/
gboolean opacity_defined;
gdouble opacity;
gboolean paint_mode_defined;
LayerModeEffects paint_mode;
gboolean image_defined;
GimpImage *image;
gboolean display_defined;
GDisplay *display;
};
struct _GimpContextClass
{
GimpObjectClass parent_class;
void (* opacity_changed) (GimpContext *context, gdouble opacity);
void (* paint_mode_changed) (GimpContext *context, gint paint_mode);
void (* image_changed) (GimpContext *context, gpointer image);
void (* display_changed) (GimpContext *context, gpointer display);
};
GtkType gimp_context_get_type (void);
GimpContext * gimp_context_new (gchar *name,
GimpContext *template,
GimpContext *parent);
/* TODO: - gimp_context_set_parent ()
* - gimp_context_get_parent ()
* - 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
*
* FIXME: move them to a private header
*/
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
*
* FIXME: this interface may be ok but the implementation is
* ugly code duplication. There needs to be a generic way.
*/
gchar * gimp_context_get_name (GimpContext *context);
GimpContext * gimp_context_get_parent (GimpContext *context);
void gimp_context_set_parent (GimpContext *context,
GimpContext *parent);
gdouble gimp_context_get_opacity (GimpContext *context);
void gimp_context_set_opacity (GimpContext *context,
gdouble opacity);
gboolean gimp_context_opacity_defined (GimpContext *context);
void gimp_context_define_opacity (GimpContext *context,
gboolean defined);
LayerModeEffects
gimp_context_get_paint_mode (GimpContext *context);
void gimp_context_set_paint_mode (GimpContext *context,
LayerModeEffects paint_mode);
gboolean gimp_context_paint_mode_defined (GimpContext *context);
void gimp_context_define_paint_mode (GimpContext *context,
gboolean defined);
GimpImage * gimp_context_get_image (GimpContext *context);
void gimp_context_set_image (GimpContext *context,
GimpImage *image);
gboolean gimp_context_image_defined (GimpContext *context);
void gimp_context_define_image (GimpContext *context,
gboolean defined);
GDisplay * gimp_context_get_display (GimpContext *context);
void gimp_context_set_display (GimpContext *context,
GDisplay *display);
gboolean gimp_context_display_defined (GimpContext *context);
void gimp_context_define_display (GimpContext *context,
gboolean defined);
#endif /* __GIMP_CONTEXT_H__ */
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