test for non-scaled bitmap tiles

git-svn-id: http://skia.googlecode.com/svn/trunk@319 2bbb7eff-a529-9590-31e7-b0007b416f81

samplecode/SampleRepeatTile.cpp

@@ -0,0 +1,90 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkShader.h"
+#include "SkKey.h"
+
+static void make_bitmap(SkBitmap* bm) {
+    const int W = 100;
+    const int H = 100;
+    bm->setConfig(SkBitmap::kARGB_8888_Config, W, H);
+    bm->allocPixels();
+
+    SkPaint paint;
+    SkCanvas canvas(*bm);
+    canvas.drawColor(SK_ColorWHITE);
+
+    const SkColor colors[] = {
+        SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE
+    };
+
+    for (int ix = 0; ix < W; ix += 1) {
+        SkScalar x = SkIntToScalar(ix) + SK_ScalarHalf;
+        paint.setColor(colors[ix & 3]);
+        canvas.drawLine(x, 0, x, SkIntToScalar(H - 1), paint);
+    }
+    paint.setColor(SK_ColorGRAY);
+    canvas.drawLine(0, 0, SkIntToScalar(W), 0, paint);
+}
+
+static void make_paint(SkPaint* paint, SkShader::TileMode tm) {
+    SkBitmap bm;
+    make_bitmap(&bm);
+
+    SkShader* shader = SkShader::CreateBitmapShader(bm, tm, tm);    
+    paint->setShader(shader)->unref();
+}
+
+class RepeatTileView : public SkView {
+public:
+	RepeatTileView() {}
+
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "RepeatTile");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+    
+    void drawBG(SkCanvas* canvas) {
+        canvas->drawColor(SK_ColorGRAY);
+    }
+    
+    virtual void onDraw(SkCanvas* canvas) {
+        this->drawBG(canvas);
+        
+        SkPaint paint;
+        make_paint(&paint, SkShader::kRepeat_TileMode);
+        
+//        canvas->scale(SK_Scalar1*2, SK_Scalar1);
+        canvas->translate(SkIntToScalar(100), SkIntToScalar(100));
+        canvas->drawPaint(paint);
+    }
+    
+    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
+        this->inval(NULL);
+        
+        return this->INHERITED::onFindClickHandler(x, y);
+    }
+    
+    virtual bool onClick(Click* click) {
+        return this->INHERITED::onClick(click);
+    }
+
+	virtual bool handleKey(SkKey key) {
+        this->inval(NULL);
+        return true;
+    }
+
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new RepeatTileView; }
+static SkViewRegister reg(MyFactory);
+