add dithering to 32bit linear gradients
git-svn-id: http://skia.googlecode.com/svn/trunk@691 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleBigGradient.cpp b/samplecode/SampleBigGradient.cpp
new file mode 100644
index 0000000..5d6d247
--- /dev/null
+++ b/samplecode/SampleBigGradient.cpp
@@ -0,0 +1,46 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkGradientShader.h"
+
+static SkShader* make_grad(SkScalar w, SkScalar h) {
+ SkColor colors[] = { 0xFF000000, 0xFF333333 };
+ SkPoint pts[] = { { 0, 0 }, { w, h } };
+ return SkGradientShader::CreateLinear(pts, colors, NULL, 2,
+ SkShader::kClamp_TileMode);
+}
+
+class BigGradientView : public SkView {
+public:
+ BigGradientView() {}
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SampleCode::TitleR(evt, "BigGradient");
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ void drawBG(SkCanvas* canvas) {
+ }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ SkRect r;
+ r.set(0, 0, this->width(), this->height());
+ SkPaint p;
+ p.setShader(make_grad(this->width(), this->height()))->unref();
+ canvas->drawRect(r, p);
+ }
+
+private:
+ typedef SkView INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new BigGradientView; }
+static SkViewRegister reg(MyFactory);
+