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248caad5d0
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@36749 72102866-910b-0410-8b05-ffd578937521
109 lines
3 KiB
Objective-C
109 lines
3 KiB
Objective-C
/* GSBackend - backend initialize class
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Copyright (C) 2002 Free Software Foundation, Inc.
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Author: Adam Fedor <fedor@gnu.org>
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Date: Mar 2002
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This file is part of the GNUstep GUI 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 "config.h"
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#include <Foundation/NSObject.h>
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#include <Foundation/NSException.h>
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#include <Foundation/NSUserDefaults.h>
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@interface GSBackend : NSObject
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{
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}
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+ (void) initializeBackend;
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@end
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#if BUILD_SERVER == SERVER_x11
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#include <x11/XGServer.h>
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@interface XGServer (Initialize)
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+ (void) initializeBackend;
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@end
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#elif BUILD_SERVER == SERVER_win32
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#include <win32/WIN32Server.h>
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@interface WIN32Server (Initialize)
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+ (void) initializeBackend;
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@end
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#endif
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/* Call the correct initalization routines for the choosen
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backend. This depends both on configuration data and defaults.
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*/
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@implementation GSBackend
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+ (void) initializeBackend
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{
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Class contextClass;
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NSString *context = nil;
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NSUserDefaults *defs = [NSUserDefaults standardUserDefaults];
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/* Load in only one server */
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#if BUILD_SERVER == SERVER_x11
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[XGServer initializeBackend];
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#elif BUILD_SERVER == SERVER_win32
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[WIN32Server initializeBackend];
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#else
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[NSException raise: NSInternalInconsistencyException
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format: @"No Window Server configured in backend"];
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#endif
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/* The way the frontend is currently structured
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it's not possible to have more than one */
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/* What backend context? */
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if ([defs stringForKey: @"GSContext"])
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context = [defs stringForKey: @"GSContext"];
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if ((context == nil) || ([context length] == 0))
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{
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#if (BUILD_GRAPHICS==GRAPHICS_xdps)
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context = @"NSDPSContext";
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#elif (BUILD_GRAPHICS==GRAPHICS_art)
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context = @"ARTContext";
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#elif (BUILD_GRAPHICS==GRAPHICS_xlib)
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context = @"XGContext";
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#elif (BUILD_GRAPHICS==GRAPHICS_winlib)
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context = @"WIN32Context";
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#elif (BUILD_GRAPHICS==GRAPHICS_cairo)
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context = @"CairoContext";
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#elif (BUILD_GRAPHICS==GRAPHICS_opal)
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context = @"OpalContext";
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#else
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#error INVALID build graphics type
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#endif
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}
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// Reference the requested build time class...
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contextClass = NSClassFromString(context);
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if (contextClass == nil)
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{
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NSLog(@"%s:Backend context class missing for: %@\n", __PRETTY_FUNCTION__, context);
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exit(1);
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}
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[contextClass initializeBackend];
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}
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@end
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