/*
   NSGraphics.h

   Copyright (C) 1996 Free Software Foundation, Inc.

   Author: Ovidiu Predescu <ovidiu@net-community.com>
   Date: February 1997
   
   This file is part of the GNUstep GUI Library.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
*/
#ifndef __NSGraphics_h__
#define __NSGraphics_h__

#include <Foundation/NSObject.h>
#include <Foundation/NSGeometry.h>

#include <AppKit/NSGraphicsContext.h>
#include <AppKit/AppKitDefines.h>

@class NSString;
@class NSColor;
@class NSGraphicsContext;

/*
 * Colorspace Names 
 */
APPKIT_EXPORT NSString *NSCalibratedWhiteColorSpace; 
APPKIT_EXPORT NSString *NSCalibratedBlackColorSpace; 
APPKIT_EXPORT NSString *NSCalibratedRGBColorSpace;
APPKIT_EXPORT NSString *NSDeviceWhiteColorSpace;
APPKIT_EXPORT NSString *NSDeviceBlackColorSpace;
APPKIT_EXPORT NSString *NSDeviceRGBColorSpace;
APPKIT_EXPORT NSString *NSDeviceCMYKColorSpace;
APPKIT_EXPORT NSString *NSNamedColorSpace;
#ifndef	STRICT_OPENSTEP
APPKIT_EXPORT NSString *NSPatternColorSpace;
#endif
APPKIT_EXPORT NSString *NSCustomColorSpace;


/*
 * Color function APPKIT_EXPORTs
 */
APPKIT_EXPORT const NSWindowDepth _GSGrayBitValue;
APPKIT_EXPORT const NSWindowDepth _GSRGBBitValue;
APPKIT_EXPORT const NSWindowDepth _GSCMYKBitValue;
APPKIT_EXPORT const NSWindowDepth _GSCustomBitValue;
APPKIT_EXPORT const NSWindowDepth _GSNamedBitValue;
APPKIT_EXPORT const NSWindowDepth *_GSWindowDepths[7];
APPKIT_EXPORT const NSWindowDepth NSDefaultDepth;
APPKIT_EXPORT const NSWindowDepth NSTwoBitGrayDepth;
APPKIT_EXPORT const NSWindowDepth NSEightBitGrayDepth;
APPKIT_EXPORT const NSWindowDepth NSEightBitRGBDepth;
APPKIT_EXPORT const NSWindowDepth NSTwelveBitRGBDepth;
APPKIT_EXPORT const NSWindowDepth GSSixteenBitRGBDepth;
APPKIT_EXPORT const NSWindowDepth NSTwentyFourBitRGBDepth;

/*
 * Gray Values 
 */
APPKIT_EXPORT const float NSBlack;
APPKIT_EXPORT const float NSDarkGray;
APPKIT_EXPORT const float NSWhite;
APPKIT_EXPORT const float NSLightGray;
APPKIT_EXPORT const float NSGray;

/*
 * Device Dictionary Keys 
 */
APPKIT_EXPORT NSString *NSDeviceResolution;
APPKIT_EXPORT NSString *NSDeviceColorSpaceName;
APPKIT_EXPORT NSString *NSDeviceBitsPerSample;
APPKIT_EXPORT NSString *NSDeviceIsScreen;
APPKIT_EXPORT NSString *NSDeviceIsPrinter;
APPKIT_EXPORT NSString *NSDeviceSize;

/*
 * Get Information About Color Space and Window Depth
 */
APPKIT_EXPORT const NSWindowDepth *NSAvailableWindowDepths(void);
APPKIT_EXPORT NSWindowDepth NSBestDepth(NSString *colorSpace, 
			  int bitsPerSample, int bitsPerPixel, 
			  BOOL planar, BOOL *exactMatch);
APPKIT_EXPORT int NSBitsPerPixelFromDepth(NSWindowDepth depth);
APPKIT_EXPORT int NSBitsPerSampleFromDepth(NSWindowDepth depth);
APPKIT_EXPORT NSString *NSColorSpaceFromDepth(NSWindowDepth depth);
APPKIT_EXPORT int NSNumberOfColorComponents(NSString *colorSpaceName);
APPKIT_EXPORT BOOL NSPlanarFromDepth(NSWindowDepth depth);


/*
 * Functions for getting information about windows.
 */
APPKIT_EXPORT void NSCountWindows(int *count);
APPKIT_EXPORT void NSWindowList(int size, int list[]);

APPKIT_EXPORT void NSEraseRect(NSRect aRect);
APPKIT_EXPORT void NSHighlightRect(NSRect aRect);
APPKIT_EXPORT void NSRectClip(NSRect aRect);
APPKIT_EXPORT void NSRectClipList(const NSRect *rects, int count);
APPKIT_EXPORT void NSRectFill(NSRect aRect);
APPKIT_EXPORT void NSRectFillList(const NSRect *rects, int count);
APPKIT_EXPORT void NSRectFillListWithGrays(const NSRect *rects,
					   const float *grays,int count);

APPKIT_EXPORT NSRect NSDrawTiledRects(NSRect aRect,const NSRect clipRect,  
			const NSRectEdge * sides, 
			const float *grays, int count);

APPKIT_EXPORT void NSDrawButton(const NSRect aRect, const NSRect clipRect);
APPKIT_EXPORT void NSDrawGrayBezel(const NSRect aRect, const NSRect clipRect);
APPKIT_EXPORT void NSDrawGroove(const NSRect aRect, const NSRect clipRect);
APPKIT_EXPORT void NSDrawWhiteBezel(const NSRect aRect, const NSRect clipRect);
APPKIT_EXPORT void NSDrawFramePhoto(const NSRect aRect, const NSRect clipRect);

// This is from an old version of the specification 
static inline void
NSDrawBezel(const NSRect aRect, const NSRect clipRect)
{
  NSDrawGrayBezel(aRect, clipRect);
}

APPKIT_EXPORT void NSDottedFrameRect(NSRect aRect);
APPKIT_EXPORT void NSFrameRect(const NSRect aRect); 
APPKIT_EXPORT void NSFrameRectWithWidth(const NSRect aRect, float frameWidth);

APPKIT_EXPORT NSColor* NSReadPixel(NSPoint location);

APPKIT_EXPORT void NSCopyBitmapFromGState(int srcGstate, NSRect srcRect, 
					  NSRect destRect);
APPKIT_EXPORT void NSCopyBits(int srcGstate, NSRect srcRect, 
			      NSPoint destPoint);

static inline void 
NSDrawBitmap(NSRect rect,
	     int pixelsWide,
	     int pixelsHigh,
	     int bitsPerSample,
	     int samplesPerPixel,
	     int bitsPerPixel,
	     int bytesPerRow,
	     BOOL isPlanar,
	     BOOL hasAlpha,
	     NSString *colorSpaceName,
	     const unsigned char *const data[5])
{
  NSGraphicsContext *ctxt = GSCurrentContext();
  (ctxt->methods->NSDrawBitmap___________)
    (ctxt, @selector(NSDrawBitmap:::::::::::),  rect,
     pixelsWide,
     pixelsHigh,
     bitsPerSample,
     samplesPerPixel,
     bitsPerPixel,
     bytesPerRow,
     isPlanar,
     hasAlpha,
     colorSpaceName,
     data);
    }

static inline void
NSBeep(void)
{
  NSGraphicsContext *ctxt = GSCurrentContext();
  (ctxt->methods->NSBeep)
    (ctxt, @selector(NSBeep));
}

static inline void
GSWSetViewIsFlipped(NSGraphicsContext *ctxt, BOOL flipped)
{
  (ctxt->methods->GSWSetViewIsFlipped_)
    (ctxt, @selector(GSWSetViewIsFlipped:), flipped);
}

static inline BOOL
GSWViewIsFlipped(NSGraphicsContext *ctxt)
{
  return (ctxt->methods->GSWViewIsFlipped)
    (ctxt, @selector(GSWViewIsFlipped));
}

#ifndef	NO_GNUSTEP
@class	NSArray;
@class	NSWindow;

APPKIT_EXPORT NSArray* GSAllWindows(void);
APPKIT_EXPORT NSWindow* GSWindowWithNumber(int num);
#endif

#ifndef	STRICT_OPENSTEP
// Window operations
APPKIT_EXPORT void NSConvertGlobalToWindowNumber(int globalNum, unsigned int *winNum);
APPKIT_EXPORT void NSConvertWindowNumberToGlobal(int winNum, unsigned int *globalNum);

// Rectangle drawing
APPKIT_EXPORT NSRect NSDrawColorTiledRects(NSRect boundsRect, NSRect clipRect, 
					    const NSRectEdge *sides, 
					    NSColor **colors, 
					    int count);
APPKIT_EXPORT void NSDrawDarkBezel(NSRect aRect, NSRect clipRect);
APPKIT_EXPORT void NSDrawLightBezel(NSRect aRect, NSRect clipRect);
APPKIT_EXPORT void NSRectFillListWithColors(const NSRect *rects, 
					     NSColor **colors, int count);

APPKIT_EXPORT void NSRectFillUsingOperation(NSRect aRect, 
					     NSCompositingOperation op);
APPKIT_EXPORT void NSRectFillListUsingOperation(const NSRect *rects, 
						 int count, 
						 NSCompositingOperation op);
APPKIT_EXPORT void NSRectFillListWithColorsUsingOperation(const NSRect *rects,
							   NSColor **colors, 
							   int num, 
							   NSCompositingOperation op);

APPKIT_EXPORT void NSDrawWindowBackground(NSRect aRect);

// Context information
APPKIT_EXPORT void NSCountWindowsForContext(int context, int *count);
APPKIT_EXPORT void NSWindowListForContext(int context, int size, int list[][]);
APPKIT_EXPORT int NSGetWindowServerMemory(int context, int *virtualMemory, 
					   int *windowBackingMemory, 
					   NSString **windowDumpStream);

#endif

#endif /* __NSGraphics_h__ */