Index: GSDrawFunctions.m
===================================================================
RCS file: /cvsroot/gnustep/gnustep/core/gui/Source/GSDrawFunctions.m,v
retrieving revision 1.5
diff -u -r1.5 GSDrawFunctions.m
--- GSDrawFunctions.m	31 May 2004 19:24:09 -0000	1.5
+++ GSDrawFunctions.m	20 Aug 2004 18:32:07 -0000
@@ -317,4 +317,94 @@
   return rect;
 }
 
++ (void) drawGradient: (NSData*) gradient withSize: (NSArray*) size
+        border: (NSRect) border
+{
+        NSAffineTransform *transform;
+        NSDictionary* shader;
+
+        transform=[[NSAffineTransform alloc] init];
+        transform->matrix.m11=border.size.width;
+        transform->matrix.m12=0.0;
+        transform->matrix.m21=0.0;
+        transform->matrix.m22=border.size.height;
+        transform->matrix.tX=border.origin.x;
+        transform->matrix.tY=border.origin.y;
+
+        shader = [[NSDictionary alloc] initWithObjectsAndKeys:
+                        [NSNumber numberWithInt: 1], @"ShadingType",
+                        [NSArray arrayWithObjects:
+                                [NSNumber numberWithFloat: 0.0],
+                                [NSNumber numberWithFloat: 1.0],
+                                [NSNumber numberWithFloat: 0.0],
+                                [NSNumber numberWithFloat: 1.0], nil], @"Domain",
+                        transform, @"Matrix",
+                        [NSMutableDictionary dictionaryWithObjectsAndKeys:
+                                [NSNumber numberWithInt: 0],@"FunctionType",
+                                [NSArray arrayWithObjects:
+                                        [NSNumber numberWithFloat: 0.0], // origin.x
+                                        [NSNumber numberWithFloat: 1.0], // x + width
+                                        [NSNumber numberWithFloat: 0.0], // origin.y
+                                        [NSNumber numberWithFloat: 1.0], // y + height
+                                        nil],
+                                        @"Domain",
+                                [NSArray arrayWithObjects:
+                                        [NSNumber numberWithFloat: 0.0],
+                                        [NSNumber numberWithFloat: 1.0],
+                                        [NSNumber numberWithFloat: 0.0],
+                                        [NSNumber numberWithFloat: 1.0],
+                                        [NSNumber numberWithFloat: 0.0],
+                                        [NSNumber numberWithFloat: 1.0],
+                                        nil],
+                                        @"Range",
+                                [NSNumber numberWithInt: 8],@"BitsPerSample",
+                                size, @"Size",
+                                gradient ,@"DataSource",
+                                nil], @"Function", 
+                        nil];
+
+        PSshfill(shader);
+        [transform release];
+}
+
++ (void) drawHorizontalGradient: (NSColor*) start to: (NSColor*) end frame: (NSRect) frame
+{
+
+        unsigned char * data;
+        int datasize = 6 * sizeof (unsigned char);
+        data = malloc (datasize);
+
+        data [0] = [start redComponent] * 255;
+        data [1] = [start greenComponent] * 255;
+        data [2] = [start blueComponent] * 255;
+        data [3] = [end redComponent] * 255;
+        data [4] = [end greenComponent] * 255;
+        data [5] = [end blueComponent] * 255;
+
+        NSData* gradient = [NSData dataWithBytesNoCopy: data length: datasize];
+        NSArray* size = [NSArray arrayWithObjects: [NSNumber numberWithInt: 2], [NSNumber numberWithInt: 1], nil];
+        [GSDrawFunctions drawGradient: gradient withSize: size border: frame];
+        free (data);
+}
+
++ (void) drawVerticalGradient: (NSColor*) start to: (NSColor*) end frame: (NSRect) frame
+{
+
+        unsigned char * data;
+        int datasize = 6 * sizeof (unsigned char);
+        data = malloc (datasize);
+
+        data [0] = [start redComponent] * 255;
+        data [1] = [start greenComponent] * 255;
+        data [2] = [start blueComponent] * 255;
+        data [3] = [end redComponent] * 255;
+        data [4] = [end greenComponent] * 255;
+        data [5] = [end blueComponent] * 255;
+
+        NSData* gradient = [NSData dataWithBytesNoCopy: data length: datasize];
+        NSArray* size = [NSArray arrayWithObjects: [NSNumber numberWithInt: 1], [NSNumber numberWithInt: 2], nil];
+        [GSDrawFunctions drawGradient: gradient withSize: size border: frame];
+        free (data);
+}
+
 @end