fix dumpcanvas to recurse on pictures and shapes
add cached bitmap for gradients to avoid thrashing textures in gl



git-svn-id: http://skia.googlecode.com/svn/trunk@201 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleTestGL.cpp b/samplecode/SampleTestGL.cpp
new file mode 100644
index 0000000..c12eb7c
--- /dev/null
+++ b/samplecode/SampleTestGL.cpp
@@ -0,0 +1,62 @@
+#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"
+
+class TestGLView : public SkView {
+public:
+	TestGLView() {
+    }
+    
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "TestGL");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+    
+    void drawBG(SkCanvas* canvas) {
+        canvas->drawColor(0xFFDDDDDD);
+    }
+    
+    virtual void onDraw(SkCanvas* canvas) {
+        drawBG(canvas);
+        
+        SkRect r;
+        r.set(0, 0, 100, 100);
+        
+        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
+        
+        SkPaint paint;
+        paint.setAntiAlias(false);
+        paint.setColor(SK_ColorRED);
+        
+        canvas->drawRect(r, paint);
+
+        canvas->translate(r.width() + SkIntToScalar(20), 0);
+        paint.setStyle(SkPaint::kStroke_Style);
+        canvas->drawRect(r, paint);
+
+        canvas->translate(r.width() + SkIntToScalar(20), 0);
+        paint.setStrokeWidth(SkIntToScalar(5));
+        canvas->drawRect(r, paint);
+    }
+    
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new TestGLView; }
+static SkViewRegister reg(MyFactory);
+
diff --git a/samplecode/SampleTriangles.cpp b/samplecode/SampleTriangles.cpp
new file mode 100644
index 0000000..be9da8f
--- /dev/null
+++ b/samplecode/SampleTriangles.cpp
@@ -0,0 +1,118 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkConcaveToTriangles.h"
+
+#define SIZE    SkIntToScalar(150)
+
+typedef void (*PathProc)(SkPath*);
+
+static void make_path0(SkPath* path) {
+    SkRect r;
+    r.set(0, 0, SIZE, SIZE);
+    path->addRect(r);
+}
+
+static void make_path1(SkPath* path) {
+    SkRect r;
+    r.set(0, 0, SIZE, SIZE);
+    path->addRoundRect(r, SIZE/4, SIZE/4);
+}
+
+static void make_path2(SkPath* path) {
+    SkRect r;
+    r.set(0, 0, SIZE, SIZE);
+    path->addOval(r);
+}
+
+static const PathProc gProcs[] = {
+    make_path0,
+    make_path1,
+    make_path2,
+};
+
+#define COUNT_PROCS SK_ARRAY_COUNT(gProcs)
+
+class TriangleView : public SkView {
+public:
+    SkPath fPaths[COUNT_PROCS];
+
+	TriangleView() {
+        for (size_t i = 0; i < COUNT_PROCS; i++) {
+            gProcs[i](&fPaths[i]);
+        }
+    }
+    
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "Triangles");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+    
+    void drawBG(SkCanvas* canvas) {
+        canvas->drawColor(SK_ColorGRAY);
+    }
+    
+    static void draw_path(SkCanvas* canvas, const SkPaint& pathPaint,
+                          const SkPath& path, const SkPaint& triPaint) {
+        canvas->drawPath(path, pathPaint);
+        
+        int n = path.getPoints(NULL, 0);
+        SkPoint* pts = new SkPoint[n];
+        path.getPoints(pts, n);
+        
+        SkTDArray<SkPoint> triangles;
+        if (SkConcaveToTriangles(n, pts, &triangles)) {
+            canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
+                                 triangles.count(), triangles.begin(), NULL,
+                                 NULL, NULL, NULL, 0, triPaint);
+        }
+        
+        SkPaint paint;
+        paint.setColor(SK_ColorGREEN);
+        paint.setStrokeWidth(SkIntToScalar(4));
+        canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, paint);
+        delete[] pts;
+    }
+
+    virtual void onDraw(SkCanvas* canvas) {
+        this->drawBG(canvas);
+        
+        canvas->translate(SIZE/2, SIZE/2);
+
+        SkPaint pathPaint, triPaint;
+        
+        pathPaint.setColor(SK_ColorBLUE);
+        pathPaint.setStrokeWidth(SIZE / 12);
+
+        triPaint.setColor(SK_ColorRED);
+        triPaint.setStyle(SkPaint::kStroke_Style);
+
+        for (size_t i = 0; i < COUNT_PROCS; i++) {
+            pathPaint.setStyle(SkPaint::kFill_Style);
+            draw_path(canvas, pathPaint, fPaths[i], triPaint);
+
+            canvas->save();
+            canvas->translate(0, SIZE * 6 / 5);
+
+            pathPaint.setStyle(SkPaint::kStroke_Style);
+            draw_path(canvas, pathPaint, fPaths[i], triPaint);
+            
+            canvas->restore();
+            canvas->translate(SIZE * 6 / 5, 0);
+        }
+    }
+    
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new TriangleView; }
+static SkViewRegister reg(MyFactory);
+