diff options
Diffstat (limited to 'samplecode')
-rw-r--r-- | samplecode/SampleEmptyPath.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/samplecode/SampleEmptyPath.cpp b/samplecode/SampleEmptyPath.cpp new file mode 100644 index 0000000000..5c865c66fd --- /dev/null +++ b/samplecode/SampleEmptyPath.cpp @@ -0,0 +1,130 @@ + +/* + * 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 "SampleCode.h" +#include "SkView.h" +#include "SkCanvas.h" +#include "SkPaint.h" +#include "SkRandom.h" + +class EmptyPathView : public SampleView { +public: + EmptyPathView() {} + +protected: + // overrides from SkEventSink + virtual bool onQuery(SkEvent* evt) { + if (SampleCode::TitleQ(*evt)) { + SampleCode::TitleR(evt, "EmptyPath"); + return true; + } + return this->INHERITED::onQuery(evt); + } + + void drawEmpty(SkCanvas* canvas, + SkColor color, + const SkRect& clip, + SkPaint::Style style, + SkPath::FillType fill) { + SkPath path; + path.setFillType(fill); + SkPaint paint; + paint.setColor(color); + paint.setStyle(style); + canvas->save(); + canvas->clipRect(clip); + canvas->drawPath(path, paint); + canvas->restore(); + } + + virtual void onDrawContent(SkCanvas* canvas) { + struct FillAndName { + SkPath::FillType fFill; + const char* fName; + }; + static const FillAndName gFills[] = { + {SkPath::kWinding_FillType, "Winding"}, + {SkPath::kEvenOdd_FillType, "Even / Odd"}, + {SkPath::kInverseWinding_FillType, "Inverse Winding"}, + {SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"}, + }; + struct StyleAndName { + SkPaint::Style fStyle; + const char* fName; + }; + static const StyleAndName gStyles[] = { + {SkPaint::kFill_Style, "Fill"}, + {SkPaint::kStroke_Style, "Stroke"}, + {SkPaint::kStrokeAndFill_Style, "Stroke And Fill"}, + }; + + SkPaint titlePaint; + titlePaint.setColor(SK_ColorBLACK); + titlePaint.setAntiAlias(true); + titlePaint.setLCDRenderText(true); + titlePaint.setTextSize(24 * SK_Scalar1); + const char title[] = "Empty Paths Drawn Into Rectangle Clips With Indicated Style and Fill"; + canvas->drawText(title, strlen(title), + 40 * SK_Scalar1, + 100*SK_Scalar1, + titlePaint); + + SkRandom rand; + SkRect rect = SkRect::MakeWH(125*SK_Scalar1, 100*SK_Scalar1); + int i = 0; + canvas->save(); + canvas->translate(80 * SK_Scalar1, 0); + canvas->save(); + for (int style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) { + for (int fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) { + if (0 == i % 4) { + canvas->restore(); + canvas->translate(0, rect.height() + 50 * SK_Scalar1); + canvas->save(); + } else { + canvas->translate(rect.width() + 100 * SK_Scalar1, 0); + } + ++i; + + + SkColor color = rand.nextU(); + color = 0xff000000| color; // force solid + this->drawEmpty(canvas, color, rect, + gStyles[style].fStyle, gFills[fill].fFill); + + SkPaint rectPaint; + rectPaint.setColor(SK_ColorBLACK); + rectPaint.setStyle(SkPaint::kStroke_Style); + rectPaint.setStrokeWidth(-1); + rectPaint.setAntiAlias(true); + canvas->drawRect(rect, rectPaint); + + char label[1024]; + sprintf(label, "%s, %s", gStyles[style].fName, + gFills[fill].fName); + SkPaint labelPaint; + labelPaint.setColor(color); + labelPaint.setAntiAlias(true); + labelPaint.setLCDRenderText(true); + canvas->drawText(label, strlen(label), + 0, rect.height() + 15 * SK_Scalar1, + labelPaint); + } + } + canvas->restore(); + canvas->restore(); + } + +private: + typedef SampleView INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +static SkView* MyFactory() { return new EmptyPathView; } +static SkViewRegister reg(MyFactory); + |