fix LayerDrawLooper to record its fFlagsMask

convert SampleDrawLooper to a GM



git-svn-id: http://skia.googlecode.com/svn/trunk@4854 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 102 insertions, 0 deletions

diff --git a/gm/drawlooper.cpp b/gm/drawlooper.cpp
new file mode 100644
index 0000000000..b4d6a18527
--- /dev/null
+++ b/gm/drawlooper.cpp
@@ -0,0 +1,102 @@
+/*
+ * 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 "gm.h"
+#include "SkCanvas.h"
+#include "SkGraphics.h"
+#include "SkRandom.h"
+#include "SkLayerDrawLooper.h"
+#include "SkBlurMaskFilter.h"
+
+#define WIDTH   200
+#define HEIGHT  200
+
+class DrawLooperGM : public skiagm::GM {
+public:
+	DrawLooperGM() : fLooper(NULL) {
+        this->setBGColor(0xFFDDDDDD);
+    }
+
+    virtual ~DrawLooperGM() {
+        SkSafeUnref(fLooper);
+    }
+
+protected:
+    virtual SkISize onISize() {
+        return SkISize::Make(520, 160);
+    }
+    
+    virtual SkString onShortName() SK_OVERRIDE {
+        return SkString("drawlooper");
+    }
+
+    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+        this->init();
+
+        SkPaint  paint;
+        paint.setTextSize(SkIntToScalar(72));
+        paint.setLooper(fLooper);
+
+        canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50),
+                           SkIntToScalar(30), paint);
+
+        canvas->drawRectCoords(SkIntToScalar(150), SkIntToScalar(50),
+                               SkIntToScalar(200), SkIntToScalar(100), paint);
+
+        canvas->drawText("Looper", 6, SkIntToScalar(230), SkIntToScalar(100),
+                         paint);
+    }
+
+private:
+    SkLayerDrawLooper*   fLooper;
+
+    void init() {
+        if (fLooper) return;
+
+        static const struct {
+            SkColor         fColor;
+            SkPaint::Style  fStyle;
+            SkScalar        fWidth;
+            SkScalar        fOffset;
+            int             fBlur;
+        } gParams[] = {
+            { SK_ColorWHITE, SkPaint::kStroke_Style, SkIntToScalar(1)*3/4, 0, 0 },
+            { SK_ColorRED, SkPaint::kStroke_Style, SkIntToScalar(4), 0, 0 },
+            { SK_ColorBLUE, SkPaint::kFill_Style, 0, 0, 0 },
+            { 0x88000000, SkPaint::kFill_Style, 0, SkIntToScalar(10), 3 }
+        };
+        
+        fLooper = new SkLayerDrawLooper;
+        
+        SkLayerDrawLooper::LayerInfo info;
+        info.fFlagsMask = SkPaint::kAntiAlias_Flag;
+        info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit;
+        info.fColorMode = SkXfermode::kSrc_Mode;
+        
+        for (size_t i = 0; i < SK_ARRAY_COUNT(gParams); i++) {
+            info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset);
+            SkPaint* paint = fLooper->addLayer(info);
+            paint->setAntiAlias(true);
+            paint->setColor(gParams[i].fColor);
+            paint->setStyle(gParams[i].fStyle);
+            paint->setStrokeWidth(gParams[i].fWidth);
+            if (gParams[i].fBlur > 0) {
+                SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(gParams[i].fBlur),
+                                                            SkBlurMaskFilter::kNormal_BlurStyle);
+                paint->setMaskFilter(mf)->unref();
+            }
+        }
+    }
+
+    typedef GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static skiagm::GM* MyFactory(void*) { return new DrawLooperGM; }
+static skiagm::GMRegistry reg(MyFactory);
+