Add image rep for svg

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/branches/svgimagerep@40267 72102866-910b-0410-8b05-ffd578937521

Source/GNUmakefile

@@ -59,6 +59,7 @@ NSBitmapImageRep+ICNS.m \
 NSBitmapImageRep+JPEG.m \
 NSBitmapImageRep+PNG.m \
 NSBitmapImageRep+PNM.m \
+NSBitmapImageRep+SVG.m \
 NSBox.m \
 NSBrowser.m \
 NSBrowserCell.m \

Source/NSBitmapImageRep+SVG.h

@@ -0,0 +1,42 @@
+/*
+   NSBitmapImageRep+SVG.m
+
+   Methods for loading .icns images.
+
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   
+   Written by: Gregory Casamento
+   Date: 2008-08-12
+   
+   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 Lesser 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/ 
+
+#ifndef _NSBitmapImageRep_SVG_H_include
+#define _NSBitmapImageRep_SVG_H_include
+
+#import "AppKit/NSBitmapImageRep.h"
+
+@interface NSBitmapImageRep (SVG)
++ (BOOL) _bitmapIsSVG: (NSData *)imageData;
++ (NSArray*) _imageRepsWithSVGData: (NSData *)imageData;
+- (id) _initBitmapFromSVG: (NSData *)imageData;
+// - (NSData *) _SVGRepresentationWithProperties: (NSDictionary *) properties;
+@end
+
+#endif

Source/NSBitmapImageRep+SVG.m

@@ -0,0 +1,82 @@
+/*
+   NSBitmapImageRep+SVG.m
+
+   Methods for loading .svg images.
+
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   
+   Written by: Gregory Casamento
+   Date: 2016-11-26
+
+   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 Lesser 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; see the file COPYING.LIB.
+   If not, see <http://www.gnu.org/licenses/> or write to the 
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, 
+   Boston, MA 02110-1301, USA.
+*/
+
+#import "config.h"
+#import "NSBitmapImageRep+SVG.h"
+#import <Foundation/NSByteOrder.h>
+#import <Foundation/NSData.h>
+#import <Foundation/NSException.h>
+#import <Foundation/NSValue.h>
+#import "AppKit/NSGraphics.h"
+#import "GSGuiPrivate.h"
+#include <librsvg-2.0/librsvg/rsvg.h>
+
+#define SVG_HEADER @"SVG"
+#define XML_HEADER @"DOCTYPE"
+
+@implementation NSBitmapImageRep (SVG)
+
++ (BOOL) _bitmapIsSVG: (NSData *)imageData
+{
+  NSString *string = nil; 
+  
+  /*
+   * If the data is 0, return immediately.
+   */
+  if ([imageData length] < 8)
+    {
+      return NO;
+    }
+
+  /*
+   * Check the beginning of the data for 
+   * the string "svg" or "doctype".
+   */
+  string = [NSString stringWithUTF8String:[imageData bytes]];
+  if([string containsString: SVG_HEADER] &&
+     [string containsString: XML_HEADER])
+    {
+      return YES;
+    }
+
+  return NO;
+}
+
++ (NSArray*) _imageRepsWithSVGData: (NSData *)imageData
+{
+  NSMutableArray *array = [NSMutableArray array];
+  return array;
+}
+
+- (id) _initBitmapFromSVG: (NSData *)imageData
+{
+  return nil;
+}
+
+@end