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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@36064 72102866-910b-0410-8b05-ffd578937521
131 lines
3.3 KiB
Objective-C
131 lines
3.3 KiB
Objective-C
/* WIN32Context - Implements graphic context for MSWindows
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Copyright (C) 2002 Free Software Foundation, Inc.
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Written by: Fred Kiefer <FredKiefer@gmx.de>
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Date: March 2002
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This file is part of the GNU Objective C User Interface Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; see the file COPYING.LIB.
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If not, see <http://www.gnu.org/licenses/> or write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <Foundation/NSDebug.h>
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#include <Foundation/NSString.h>
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#include <AppKit/NSBitmapImageRep.h>
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#include <AppKit/NSGraphics.h>
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#include "winlib/WIN32GState.h"
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#include "winlib/WIN32FontEnumerator.h"
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#include "winlib/WIN32FontInfo.h"
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#include "winlib/WIN32Context.h"
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/* Common graphics functions */
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@implementation WIN32Context
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/* Initialize AppKit backend */
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+ (void)initializeBackend
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{
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NSDebugLog(@"Initializing GNUstep GUI Win32 backend.\n");
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[NSGraphicsContext setDefaultContextClass: [WIN32Context class]];
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[GSFontEnumerator setDefaultClass: [WIN32FontEnumerator class]];
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[GSFontInfo setDefaultClass: [WIN32FontInfo class]];
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}
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+ (Class) GStateClass
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{
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return [WIN32GState class];
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}
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- (void)flushGraphics
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{
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}
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// Try to match restrictions in GSCreateBitmap()
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- (BOOL) isCompatibleBitmap: (NSBitmapImageRep*)bitmap
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{
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NSString *colorSpaceName;
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NSInteger numColors;
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if ([bitmap bitmapFormat] != 0)
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{
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return NO;
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}
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if ([bitmap isPlanar])
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{
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return NO;
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}
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if ([bitmap bitsPerSample] != 8)
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{
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return NO;
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}
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numColors = [bitmap samplesPerPixel] - ([bitmap hasAlpha] ? 1 : 0);
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colorSpaceName = [bitmap colorSpaceName];
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if ([colorSpaceName isEqualToString: NSDeviceRGBColorSpace] ||
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[colorSpaceName isEqualToString: NSCalibratedRGBColorSpace])
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{
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return (numColors == 3);
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}
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else if ([colorSpaceName isEqualToString: NSDeviceWhiteColorSpace] ||
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[colorSpaceName isEqualToString: NSCalibratedWhiteColorSpace])
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{
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return (numColors == 1);
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}
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else if ([colorSpaceName isEqualToString: NSDeviceBlackColorSpace] ||
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[colorSpaceName isEqualToString: NSCalibratedBlackColorSpace])
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{
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return (numColors == 1);
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}
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else
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{
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return NO;
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}
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}
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@end
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@implementation WIN32Context (Ops)
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- (void) GSCurrentDevice: (void **)device : (int *)x : (int *)y
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{
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void *windevice = [(WIN32GState *)gstate window];
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if (device)
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*device = windevice;
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if (x && y)
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{
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NSPoint offset = [gstate offset];
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*x = offset.x;
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*y = offset.y;
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}
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}
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- (void) GSSetDevice: (void *)device : (int)x : (int)y
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{
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[(WIN32GState*)gstate setWindow: (HWND)device];
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[gstate setOffset: NSMakePoint(x, y)];
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}
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- (BOOL) supportsDrawGState
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{
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return YES;
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}
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@end
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