new samples



git-svn-id: http://skia.googlecode.com/svn/trunk@1239 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleClamp.cpp b/samplecode/SampleClamp.cpp
new file mode 100644
index 0000000..88c1b91
--- /dev/null
+++ b/samplecode/SampleClamp.cpp
@@ -0,0 +1,61 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkGraphics.h"
+#include "SkRandom.h"
+#include "SkGradientShader.h"
+#include "SkPicture.h"
+
+static SkShader* make_linear() {
+    SkPoint pts[] = { 0, 0, SK_Scalar1/500, SK_Scalar1/500 };
+    SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
+    return SkGradientShader::CreateLinear(pts, colors, NULL, 2,
+                                          SkShader::kClamp_TileMode);
+}
+
+class ClampView : public SampleView {
+    SkShader*   fGrad;
+
+public:
+    ClampView() {
+        fGrad = make_linear();
+    }
+
+    virtual ~ClampView() {
+        fGrad->unref();
+    }
+
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "Clamp");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+
+    virtual void onDrawContent(SkCanvas* canvas) {
+        SkPaint paint;
+        paint.setShader(fGrad);
+
+//        canvas->translate(this->width()/2, this->height()/2);
+        canvas->translate(64, 64);
+        canvas->drawPaint(paint);
+
+        SkPicture pic;
+        SkCanvas* c = pic.beginRecording(100, 100, 0);
+        SkCanvas::LayerIter layerIterator(c, false);
+        layerIterator.next();
+        layerIterator.done();
+    }
+
+private:
+    typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new ClampView; }
+static SkViewRegister reg(MyFactory);
+