AppKit/NSAffineTransform.m

   1 #import <AppKit/NSAffineTransform.h>
   2 #import <AppKit/NSBezierPath.h>
   3 #import <ApplicationServices/ApplicationServices.h>
   4 #import <AppKit/NSGraphicsContext.h>
   5
   6 @implementation NSAffineTransform(AppKit)
   7
   8 -(void)concat {
   9    NSAffineTransformStruct atStruct=[self transformStruct];
  10    CGAffineTransform       cgMatrix;
  11
  12    cgMatrix.a=atStruct.m11;
  13    cgMatrix.b=atStruct.m12;
  14    cgMatrix.c=atStruct.m21;
  15    cgMatrix.d=atStruct.m22;
  16    cgMatrix.tx=atStruct.tX;
  17    cgMatrix.ty=atStruct.tY;
  18
  19    CGContextConcatCTM([[NSGraphicsContext currentContext] graphicsPort],cgMatrix);
  20 }
  21
  22 -(void)set {
  23    NSAffineTransformStruct atStruct=[self transformStruct];
  24    CGAffineTransform       cgMatrix;
  25
  26    cgMatrix.a=atStruct.m11;
  27    cgMatrix.b=atStruct.m12;
  28    cgMatrix.c=atStruct.m21;
  29    cgMatrix.d=atStruct.m22;
  30    cgMatrix.tx=atStruct.tX;
  31    cgMatrix.ty=atStruct.tY;
  32
  33    CGContextSetCTM([[NSGraphicsContext currentContext] graphicsPort],cgMatrix);
  34 }
  35
  36 -(NSBezierPath *)transformBezierPath:(NSBezierPath *)bezierPath {
  37    NSBezierPath *result=[[bezierPath copy] autorelease];
  38
  39    [result transformUsingAffineTransform:self];
  40
  41    return result;
  42 }
  43
  44 @end