/*
 * CairoContext.m

 * Copyright (C) 2003 Free Software Foundation, Inc.
 * August 31, 2003
 * Written by Banlu Kemiyatorn <object at gmail dot com>
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
 */
#include "cairo/CairoContext.h"
#include "cairo/CairoGState.h"
#include "cairo/CairoFontInfo.h"
#include "cairo/CairoFontEnumerator.h"
#include "NSBezierPathCairo.h"

#define XRGSTATE ((CairoGState *)gstate)


@implementation CairoContext

+ (void) initializeBackend
{
  //NSLog (@"CairoContext : Initializing cairo backend");
  [NSGraphicsContext setDefaultContextClass:self];

  [CairoSurface initializeBackend];
  [GSFontEnumerator setDefaultClass: [CairoFontEnumerator class]];
  [GSFontInfo setDefaultClass: [CairoFontInfo class]];
  [NSBezierPath initializeCairoBezierPath];
}

/* FIXME: TRAP */
- (void) forwardInvocation: (NSInvocation *)anInvocation
{
  /* only for trapping any unknown message. */
  NSLog (@":::UNKNOWN::: %@ %@", self, anInvocation);
}

- (void) GSWSetViewIsFlipped: (BOOL)flipped
{
  if (gstate)
    {
      ((CairoGState *) gstate)->_viewIsFlipped = flipped;
    }
}

- (id) initWithContextInfo: (NSDictionary *)info
{
  NSString *contextType;

  /*
     CSMKColorType hsb_double;
     CSMKColorAttributes attr;
   */

  [super initWithContextInfo:info];

  contextType = [info objectForKey:
			 NSGraphicsContextRepresentationFormatAttributeName];
  if (contextType)
    {
      if (!([contextType isEqualToString: NSGraphicsContextPDFFormat] ||
	    [contextType isEqualToString: NSGraphicsContextPSFormat]))
	{
	  NSLog(@"CairoContext : Hmmmm");
	}
      NSLog(@"CairoContext : NSGCRFAName %@", contextType);
      return self;
    }

  /*
     attr.signature = CSMKHSVColorSignature;
     attr.isPremultiplied = NO;
     attr.isPlanar = NO;
     attr.hasAlphaChannel = NO;
     attr.isEndian16 = NO;
     attr.flavor = CSMKBlackIsZeroFlavor;
     attr.numberOfColorComponents = 3;
     attr.bytesPerChannel = 4;

     hsb_double = CSMKMakeColorType(&attr);

     ASSIGN(_systemRGBprofile,
     [CSMKColorProfile defaultColorProfileForColorType:CSMKRGBDoubleColor]);
     ASSIGN(_systemCMYKprofile,
     [CSMKColorProfile defaultColorProfileForColorType:CSMKCMYKDoubleColor]);
     ASSIGN(_systemHSBprofile,
     [CSMKColorProfile defaultColorProfileForColorType:hsb_double]);
   */

  gstate = [[CairoGState allocWithZone: [self zone]] initWithDrawContext: self];

  return self;
}

- (void) flushGraphics
{
  /* FIXME */
}

+ (void) handleExposeRect: (NSRect)rect forDriver: (void *)driver
{
  NSLog (@"expose");
  /* FIXME: */
}

@end 

@implementation CairoContext (Ops) 

- (void) GSCurrentDevice: (void **)device : (int *)x : (int *)y
{
  [XRGSTATE GSCurrentDevice: device : x : y];
}

- (void) GSSetDevice: (void *)device : (int)x : (int)y
{
  [XRGSTATE GSSetDevice: device : x : y];
}

@end