| #include "SampleCode.h" |
| #include "SkCanvas.h" |
| #include "SkParsePath.h" |
| #include "SkPath.h" |
| #include "SkRandom.h" |
| #include "SkView.h" |
| |
| #include "SkBlurMaskFilter.h" |
| |
| static void scale_to_width(SkPath* path, SkScalar dstWidth) { |
| const SkRect& bounds = path->getBounds(); |
| SkScalar scale = dstWidth / bounds.width(); |
| SkMatrix matrix; |
| |
| matrix.setScale(scale, scale); |
| path->transform(matrix); |
| } |
| |
| static const struct { |
| SkPaint::Style fStyle; |
| SkPaint::Join fJoin; |
| int fStrokeWidth; |
| } gRec[] = { |
| { SkPaint::kFill_Style, SkPaint::kMiter_Join, 0 }, |
| { SkPaint::kStroke_Style, SkPaint::kMiter_Join, 0 }, |
| { SkPaint::kStroke_Style, SkPaint::kMiter_Join, 10 }, |
| { SkPaint::kStrokeAndFill_Style, SkPaint::kMiter_Join, 10 }, |
| }; |
| |
| class StrokePathView : public SkView { |
| SkScalar fWidth; |
| SkPath fPath; |
| public: |
| StrokePathView() { |
| fWidth = SkIntToScalar(120); |
| |
| #if 0 |
| const char str[] = |
| "M 0, 3" |
| "C 10, -10, 30, -10, 0, 28" |
| "C -30, -10, -10, -10, 0, 3" |
| "Z"; |
| SkParsePath::FromSVGString(str, &fPath); |
| #else |
| fPath.addCircle(0, 0, SkIntToScalar(50), SkPath::kCW_Direction); |
| fPath.addCircle(0, SkIntToScalar(-50), SkIntToScalar(30), SkPath::kCW_Direction); |
| #endif |
| |
| scale_to_width(&fPath, fWidth); |
| const SkRect& bounds = fPath.getBounds(); |
| fPath.offset(-bounds.fLeft, -bounds.fTop); |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "StrokePath"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void drawBG(SkCanvas* canvas) { |
| canvas->drawColor(0xFFDDDDDD); |
| } |
| |
| SkRandom rand; |
| |
| void drawSet(SkCanvas* canvas, SkPaint* paint) { |
| SkAutoCanvasRestore acr(canvas, true); |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) { |
| paint->setStyle(gRec[i].fStyle); |
| paint->setStrokeJoin(gRec[i].fJoin); |
| paint->setStrokeWidth(SkIntToScalar(gRec[i].fStrokeWidth)); |
| canvas->drawPath(fPath, *paint); |
| canvas->translate(fWidth * 5 / 4, 0); |
| } |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| drawBG(canvas); |
| canvas->translate(SkIntToScalar(10), SkIntToScalar(10)); |
| |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| |
| if (true) { |
| canvas->drawColor(SK_ColorBLACK); |
| |
| paint.setTextSize(24); |
| paint.setColor(SK_ColorWHITE); |
| canvas->translate(10, 30); |
| |
| static const SkBlurMaskFilter::BlurStyle gStyle[] = { |
| SkBlurMaskFilter::kNormal_BlurStyle, |
| SkBlurMaskFilter::kInner_BlurStyle, |
| SkBlurMaskFilter::kOuter_BlurStyle, |
| SkBlurMaskFilter::kSolid_BlurStyle, |
| }; |
| for (int x = 0; x < 5; x++) { |
| SkMaskFilter* mf; |
| SkScalar radius = 4; |
| for (int y = 0; y < 10; y++) { |
| if (x) { |
| mf = SkBlurMaskFilter::Create(radius, gStyle[x - 1]); |
| paint.setMaskFilter(mf)->unref(); |
| } |
| canvas->drawText("Title Bar", 9, x*100, y*30, paint); |
| radius *= 0.75f; |
| } |
| |
| } |
| return; |
| } |
| |
| paint.setColor(SK_ColorBLUE); |
| |
| #if 1 |
| SkPath p; |
| float r = rand.nextUScalar1() + 0.5f; |
| SkScalar x = 0, y = 0; |
| p.moveTo(x, y); |
| #if 0 |
| p.cubicTo(x-75*r, y+75*r, x-40*r, y+125*r, x, y+85*r); |
| p.cubicTo(x+40*r, y+125*r, x+75*r, y+75*r, x, y); |
| #else |
| p.cubicTo(x+75*r, y+75*r, x+40*r, y+125*r, x, y+85*r); |
| p.cubicTo(x-40*r, y+125*r, x-75*r, y+75*r, x, y); |
| #endif |
| p.close(); |
| fPath = p; |
| fPath.offset(100, 0); |
| #endif |
| |
| fPath.setFillType(SkPath::kWinding_FillType); |
| drawSet(canvas, &paint); |
| |
| canvas->translate(0, fPath.getBounds().height() * 5 / 4); |
| fPath.setFillType(SkPath::kEvenOdd_FillType); |
| drawSet(canvas, &paint); |
| } |
| |
| virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| this->inval(NULL); |
| return this->INHERITED::onFindClickHandler(x, y); |
| } |
| private: |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new StrokePathView; } |
| static SkViewRegister reg(MyFactory); |
| |