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080cacfdb3
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@16084 72102866-910b-0410-8b05-ffd578937521
159 lines
4.1 KiB
Objective-C
159 lines
4.1 KiB
Objective-C
/* -*- mode:ObjC -*-
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XGContext - Drawing context using the Xlib Library.
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Copyright (C) 1998,1999,2002 Free Software Foundation, Inc.
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Written by: Adam Fedor <fedor@boulder.colorado.edu>
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Date: Nov 1998
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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 Library 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "config.h"
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#include <AppKit/AppKitExceptions.h>
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#include <AppKit/NSAffineTransform.h>
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#include <AppKit/NSColor.h>
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#include <AppKit/NSView.h>
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#include <AppKit/NSWindow.h>
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#include <Foundation/NSException.h>
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#include <Foundation/NSArray.h>
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#include <Foundation/NSDictionary.h>
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#include <Foundation/NSData.h>
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#include <Foundation/NSValue.h>
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#include <Foundation/NSString.h>
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#include <Foundation/NSUserDefaults.h>
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#include <Foundation/NSDebug.h>
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#include "x11/XGServer.h"
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#include "xlib/XGContext.h"
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#include "xlib/XGPrivate.h"
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#include "xlib/XGGState.h"
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#ifdef HAVE_XFT
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#include "xlib/GSXftFontInfo.h"
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#endif
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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/**
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<unit>
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<heading>XGContext</heading>
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<p>
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The documentation below mostly describes methods that are specific to
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this backend and wouldn't necessarily be used in other backends. The methods
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that this class does implement that would need to be in every backend are
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the methods of its NSGraphicContext superclass. See the documentation
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for NSGraphicContext for more information.
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</p>
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</unit>
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*/
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@implementation XGContext
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/* Initialize AppKit backend */
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+ (void)initializeBackend
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{
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Class fontClass = Nil;
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Class fontEnumerator = Nil;
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NSDebugLog(@"Initializing GNUstep xlib backend.\n");
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[NSGraphicsContext setDefaultContextClass: [XGContext class]];
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#ifdef HAVE_XFT
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if ([[NSUserDefaults standardUserDefaults] boolForKey: @"GSFontAntiAlias"])
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{
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fontClass = [GSXftFontInfo class];
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#ifdef HAVE_FC
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fontEnumerator = [FcFontEnumerator class];
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#endif
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}
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#endif
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if (fontClass == Nil)
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{
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fontClass = [XGFontInfo class];
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}
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[GSFontInfo setDefaultClass: fontClass];
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if (fontEnumerator == Nil)
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{
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fontEnumerator = [XGFontEnumerator class];
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}
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[GSFontEnumerator setDefaultClass: fontEnumerator];
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}
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- (id) initWithContextInfo: (NSDictionary *)info
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{
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NSString *contextType;
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contextType = [info objectForKey:
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NSGraphicsContextRepresentationFormatAttributeName];
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self = [super initWithContextInfo: info];
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if (contextType)
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{
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/* Most likely this is a PS or PDF context, so just return what
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super gave us */
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return self;
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}
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/* Create a default gstate */
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gstate = [[XGGState allocWithZone: [self zone]] initWithDrawContext: self];
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return self;
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}
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- (void) flushGraphics
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{
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XFlush([(XGServer *)server xDisplay]);
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}
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//
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// Read the Color at a Screen Position
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//
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- (NSColor *) NSReadPixel: (NSPoint) location
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{
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[self notImplemented: _cmd];
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return nil;
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}
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@end
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@implementation XGContext (Ops)
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/* ----------------------------------------------------------------------- */
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/* Window system ops */
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/* ----------------------------------------------------------------------- */
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- (void) GSCurrentDevice: (void **)device : (int *)x : (int *)y
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{
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void *windevice = [(XGGState *)gstate windevice];
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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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[(XGGState *)gstate setWindowDevice: device];
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[gstate setOffset: NSMakePoint(x, y)];
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}
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@end
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