Factory methods for heap-allocated SkPathEffect and SkXfermode objects.

samplecode/SampleAll.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SampleCode.h"
 #include "SkBlurMask.h"
 #include "SkCanvas.h"
@@ skipping 126 matching lines @@
     p.setXfermodeMode(SkXfermode::kClear_Mode);
     rast->addLayer(p, SK_Scalar1*3/2, SK_Scalar1*3/2);
 
     p.setXfermode(NULL);
     rast->addLayer(p);
 }
 
 static void r5(SkLayerRasterizer* rast, SkPaint& p) {
     rast->addLayer(p);
 
-    p.setPathEffect(new SkDiscretePathEffect(SK_Scalar1*4, SK_Scalar1*3))->unref();
+    p.setPathEffect(SkDiscretePathEffect::Create(SK_Scalar1*4, SK_Scalar1*3))->unref();
     p.setXfermodeMode(SkXfermode::kSrcOut_Mode);
     rast->addLayer(p);
 }
 
 static void r6(SkLayerRasterizer* rast, SkPaint& p) {
     rast->addLayer(p);
 
     p.setAntiAlias(false);
     SkLayerRasterizer* rast2 = new SkLayerRasterizer;
     r5(rast2, p);
@@ skipping 52 matching lines @@
     p.setStrokeWidth(SK_Scalar1);
     rast->addLayer(p);
 }
 
 static void r9(SkLayerRasterizer* rast, SkPaint& p) {
     rast->addLayer(p);
 
     SkMatrix    lattice;
     lattice.setScale(SK_Scalar1, SK_Scalar1*6, 0, 0);
     lattice.postRotate(SkIntToScalar(30), 0, 0);
-    p.setPathEffect(new SkLine2DPathEffect(SK_Scalar1*2, lattice))->unref();
+    p.setPathEffect(SkLine2DPathEffect::Create(SK_Scalar1*2, lattice))->unref();
     p.setXfermodeMode(SkXfermode::kClear_Mode);
     rast->addLayer(p);
 
     p.setPathEffect(NULL);
     p.setXfermode(NULL);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rast->addLayer(p);
 }
 
@@ skipping 312 matching lines @@
 
     SkPathEffect* pathEffectTest() {
         static const int gXY[] = { 1, 0, 0, -1, 2, -1, 3, 0, 2, 1, 0, 1 };
         SkScalar gPhase = 0;
         SkPath path;
         path.moveTo(SkIntToScalar(gXY[0]), SkIntToScalar(gXY[1]));
         for (unsigned i = 2; i < SK_ARRAY_COUNT(gXY); i += 2)
             path.lineTo(SkIntToScalar(gXY[i]), SkIntToScalar(gXY[i+1]));
         path.close();
         path.offset(SkIntToScalar(-6), 0);
-        SkPathEffect* outer = new SkPath1DPathEffect(path, SkIntToScalar(12),
+        SkPathEffect* outer = SkPath1DPathEffect::Create(path, SkIntToScalar(12),
             gPhase, SkPath1DPathEffect::kRotate_Style);
-        SkPathEffect* inner = new SkDiscretePathEffect(SkIntToScalar(2),
+        SkPathEffect* inner = SkDiscretePathEffect::Create(SkIntToScalar(2),
             SkIntToScalar(1)/10); // SkCornerPathEffect(SkIntToScalar(2));
-        SkPathEffect* result = new SkComposePathEffect(outer, inner);
+        SkPathEffect* result = SkComposePathEffect::Create(outer, inner);
         outer->unref();
         inner->unref();
         return result;
     }
 
     SkShader* shaderTest() {
         SkPoint pts[] = { { 0, 0, }, { SkIntToScalar(100), 0 } };
         SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
         SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, NULL,
             2, SkShader::kClamp_TileMode);
@@ skipping 52 matching lines @@
             paint.setStyle(SkPaint::kStroke_Style);
             canvas->drawOval(oval, paint);
             paint.setStyle(SkPaint::kFill_Style);
 
             y += paint.getFontSpacing();
         }
 
         canvas->restore();
 
         if (1) {
-            SkAvoidXfermode   mode(SK_ColorWHITE, 0xFF,
-                                   SkAvoidXfermode::kTargetColor_Mode);
+            SkAutoTUnref<SkAvoidXfermode> mode(SkAvoidXfermode::Create(SK_ColorWHITE, 0xFF,
+                                   SkAvoidXfermode::kTargetColor_Mode));
             SkPaint paint;
             x += SkIntToScalar(20);
             SkRect  r = { x, 0, x + SkIntToScalar(360), SkIntToScalar(700) };
-            paint.setXfermode(&mode);
+            paint.setXfermode(mode);
             paint.setColor(SK_ColorGREEN);
             paint.setAntiAlias(true);
             canvas->drawOval(r, paint);
         }
     }
 
 private:
     SkPoint fClickPt;
     SkBitmap fBug, fTb, fTx;
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new DemoView; }
 static SkViewRegister reg(MyFactory);