add new test for blurs

git-svn-id: http://skia.googlecode.com/svn/trunk@803 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 92 insertions, 0 deletions

diff --git a/gm/blurs.cpp b/gm/blurs.cpp
new file mode 100644
index 0000000000..8250d76fce
--- /dev/null
+++ b/gm/blurs.cpp
@@ -0,0 +1,92 @@
+#include "gm.h"
+#include "SkBlurMaskFilter.h"
+
+namespace skiagm {
+
+class BlursGM : public GM {
+public:
+	BlursGM() {}
+
+protected:
+    virtual SkString onShortName() {
+        return SkString("blurs");
+    }
+
+	virtual SkISize onISize() {
+        return make_isize(700, 500);
+    }
+
+    void drawBG(SkCanvas* canvas) {
+        canvas->drawColor(0xFFDDDDDD);
+    }
+
+    virtual void onDraw(SkCanvas* canvas) {
+        drawBG(canvas);
+
+        SkBlurMaskFilter::BlurStyle NONE = SkBlurMaskFilter::BlurStyle(-999);
+        static const struct {
+            SkBlurMaskFilter::BlurStyle fStyle;
+            int                         fCx, fCy;
+        } gRecs[] = {
+            { NONE,                                 0,  0 },
+            { SkBlurMaskFilter::kInner_BlurStyle,  -1,  0 },
+            { SkBlurMaskFilter::kNormal_BlurStyle,  0,  1 },
+            { SkBlurMaskFilter::kSolid_BlurStyle,   0, -1 },
+            { SkBlurMaskFilter::kOuter_BlurStyle,   1,  0 },
+        };
+
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setTextSize(25);
+        canvas->translate(-40, 0);
+
+        SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag;
+        for (int j = 0; j < 2; j++) {
+            canvas->save();
+            paint.setColor(SK_ColorBLUE);
+            for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
+                if (gRecs[i].fStyle != NONE) {
+                    SkMaskFilter* mf = SkBlurMaskFilter::Create(20,
+                                                                gRecs[i].fStyle,
+                                                                flags);
+                    paint.setMaskFilter(mf)->unref();
+                } else {
+                    paint.setMaskFilter(NULL);
+                }
+                canvas->drawCircle(200 + gRecs[i].fCx*100,
+                                   200 + gRecs[i].fCy*100, 50, paint);
+            }
+            // draw text
+            {
+                SkMaskFilter* mf = SkBlurMaskFilter::Create(4,
+                                                            SkBlurMaskFilter::kNormal_BlurStyle,
+                                                            flags);
+                paint.setMaskFilter(mf)->unref();
+                SkScalar x = SkIntToScalar(70);
+                SkScalar y = SkIntToScalar(400);
+                paint.setColor(SK_ColorBLACK);
+                canvas->drawText("Hamburgefons Style", 18, x, y, paint);
+                canvas->drawText("Hamburgefons Style", 18, x, y + SkIntToScalar(50), paint);
+                paint.setMaskFilter(NULL);
+                paint.setColor(SK_ColorWHITE);
+                x -= SkIntToScalar(2);
+                y -= SkIntToScalar(2);
+                canvas->drawText("Hamburgefons Style", 18, x, y, paint);
+            }
+            canvas->restore();
+//            flags = SkBlurMaskFilter::kHighQuality_BlurFlag;
+            canvas->translate(350, 0);
+        }
+    }
+
+private:
+    typedef GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new BlursGM; }
+static GMRegistry reg(MyFactory);
+
+}
+