--- /dev/null
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkCornerPathEffect.h"
+#include "SkCullPoints.h"
+#include "SkGradientShader.h"
+#include "SkPath.h"
+#include "SkRegion.h"
+#include "SkShader.h"
+#include "SkUtils.h"
+
+static void create_bitmap(SkBitmap* bitmap) {
+ const int W = 100;
+ const int H = 100;
+ bitmap->setConfig(SkBitmap::kARGB_8888_Config, W, H);
+ bitmap->allocPixels();
+
+ SkCanvas canvas(*bitmap);
+ canvas.drawColor(SK_ColorRED);
+ SkPaint paint;
+ paint.setColor(SK_ColorBLUE);
+ canvas.drawCircle(SkIntToScalar(W)/2, SkIntToScalar(H)/2, SkIntToScalar(W)/2, paint);
+}
+
+class WritePixelsView : public SampleView {
+ SkPath fPath;
+public:
+ WritePixelsView() {}
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SampleCode::TitleR(evt, "WritePixels");
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ virtual void onDrawContent(SkCanvas* canvas) {
+ SkBitmap bitmap;
+ create_bitmap(&bitmap);
+ int x = bitmap.width() / 2;
+ int y = bitmap.height() / 2;
+
+ SkBitmap subset;
+ bitmap.extractSubset(&subset, SkIRect::MakeXYWH(x, y, x, y));
+
+ canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
+
+ canvas->writePixels(bitmap, 0, 0);
+ canvas->writePixels(subset, 0, 0);
+ }
+
+private:
+ typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new WritePixelsView; }
+static SkViewRegister reg(MyFactory);
+