diff options
Diffstat (limited to 'gm/cubicpaths.cpp')
| -rw-r--r-- | gm/cubicpaths.cpp | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/gm/cubicpaths.cpp b/gm/cubicpaths.cpp new file mode 100644 index 0000000000..80e38ca6ab --- /dev/null +++ b/gm/cubicpaths.cpp @@ -0,0 +1,189 @@ +/* + * 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 "SkPaint.h" +#include "SkRandom.h" + +namespace skiagm { + +class CubicPathsGM : public GM { +public: + CubicPathsGM() {} + +protected: + SkString onShortName() { + return SkString("cubicpaths"); + } + + SkISize onISize() { return make_isize(1800, 1110); } + + void drawPath(SkPath& path,SkCanvas* canvas,SkColor color, + const SkRect& clip,SkPaint::Cap cap, + SkPaint::Style style, SkPath::FillType fill, + SkScalar strokeWidth) { + path.setFillType(fill); + SkPaint paint; + paint.setStrokeCap(cap); + paint.setStrokeWidth(strokeWidth); + paint.setColor(color); + paint.setStyle(style); + canvas->save(); + canvas->clipRect(clip); + canvas->drawPath(path, paint); + canvas->restore(); + } + + virtual void onDraw(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"}, + }; + struct CapAndName { + SkPaint::Cap fCap; + const char* fName; + }; + static const CapAndName gCaps[] = { + {SkPaint::kButt_Cap, "Butt"}, + {SkPaint::kRound_Cap, "Round"}, + {SkPaint::kSquare_Cap, "Square"}, + }; + struct PathAndName { + SkPath fPath; + const char* fName; + }; + PathAndName gPaths[4]; + gPaths[0].fPath.moveTo(50*SK_Scalar1, 15*SK_Scalar1); + gPaths[0].fPath.cubicTo(50*SK_Scalar1, 15*SK_Scalar1, + 50*SK_Scalar1, 15*SK_Scalar1, + 50*SK_Scalar1, 15*SK_Scalar1); + gPaths[0].fName = "moveTo-zerocubic"; + gPaths[1].fPath.moveTo(50*SK_Scalar1, 15*SK_Scalar1); + gPaths[1].fPath.cubicTo(50*SK_Scalar1, 15*SK_Scalar1, + 50*SK_Scalar1, 15*SK_Scalar1, + 50*SK_Scalar1, 15*SK_Scalar1); + gPaths[1].fPath.close(); + gPaths[1].fName = "moveTo-zerocubic-close"; + gPaths[2].fPath.moveTo(30*SK_Scalar1, 10*SK_Scalar1); + gPaths[2].fPath.cubicTo(40*SK_Scalar1, 20*SK_Scalar1, + 60*SK_Scalar1, 20*SK_Scalar1, + 70*SK_Scalar1, 10*SK_Scalar1); + gPaths[2].fName = "moveTo-cubic"; + gPaths[3].fPath.moveTo(30*SK_Scalar1, 10*SK_Scalar1); + gPaths[3].fPath.cubicTo(40*SK_Scalar1, 20*SK_Scalar1, + 60*SK_Scalar1, 20*SK_Scalar1, + 70*SK_Scalar1, 10*SK_Scalar1); + gPaths[3].fPath.close(); + gPaths[3].fName = "moveTo-cubic-close"; + + SkPaint titlePaint; + titlePaint.setColor(SK_ColorBLACK); + titlePaint.setAntiAlias(true); + titlePaint.setLCDRenderText(true); + titlePaint.setTextSize(15 * SK_Scalar1); + const char title[] = "Cubic Paths Drawn Into Rectangle Clips With " + "Indicated Style, Fill and Linecaps, " + "with random stroke widths"; + canvas->drawText(title, strlen(title), + 20 * SK_Scalar1, + 20 * SK_Scalar1, + titlePaint); + + SkRandom rand; + SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1); + canvas->save(); + canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1); + canvas->save(); + for (size_t path = 0; path < SK_ARRAY_COUNT(gPaths); ++path) { + if (0 < path) { + canvas->translate(0, (rect.height() + 60 * SK_Scalar1) * 3); + } + canvas->save(); + for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) { + if (0 < cap) { + canvas->translate((rect.width() + 40 * SK_Scalar1) * 4, 0); + } + canvas->save(); + for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) { + if (0 < style) { + canvas->translate(0, rect.height() + 60 * SK_Scalar1); + } + canvas->save(); + for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) { + if (0 < fill) { + canvas->translate(rect.width() + 40 * SK_Scalar1, 0); + } + + SkColor color = 0xff007000; + this->drawPath(gPaths[path].fPath, canvas, color, rect, + gCaps[cap].fCap, gStyles[style].fStyle, + gFills[fill].fFill, SK_Scalar1*10); + + SkPaint rectPaint; + rectPaint.setColor(SK_ColorBLACK); + rectPaint.setStyle(SkPaint::kStroke_Style); + rectPaint.setStrokeWidth(-1); + rectPaint.setAntiAlias(true); + canvas->drawRect(rect, rectPaint); + + SkPaint labelPaint; + labelPaint.setColor(color); + labelPaint.setAntiAlias(true); + labelPaint.setLCDRenderText(true); + labelPaint.setTextSize(10 * SK_Scalar1); + canvas->drawText(gStyles[style].fName, + strlen(gStyles[style].fName), + 0, rect.height() + 12 * SK_Scalar1, + labelPaint); + canvas->drawText(gFills[fill].fName, + strlen(gFills[fill].fName), + 0, rect.height() + 24 * SK_Scalar1, + labelPaint); + canvas->drawText(gCaps[cap].fName, + strlen(gCaps[cap].fName), + 0, rect.height() + 36 * SK_Scalar1, + labelPaint); + canvas->drawText(gPaths[path].fName, + strlen(gPaths[path].fName), + 0, rect.height() + 48 * SK_Scalar1, + labelPaint); + } + canvas->restore(); + } + canvas->restore(); + } + canvas->restore(); + } + canvas->restore(); + canvas->restore(); + } + +private: + typedef GM INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new CubicPathsGM; } +static GMRegistry reg(MyFactory); + +} |