зеркало из https://github.com/mozilla/moz-skia.git
131 строка
4.2 KiB
C++
131 строка
4.2 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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class EmptyPathView : public SampleView {
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public:
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EmptyPathView() {}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "EmptyPath");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawEmpty(SkCanvas* canvas,
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SkColor color,
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const SkRect& clip,
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SkPaint::Style style,
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SkPath::FillType fill) {
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SkPath path;
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path.setFillType(fill);
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SkPaint paint;
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paint.setColor(color);
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paint.setStyle(style);
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canvas->save();
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canvas->clipRect(clip);
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canvas->drawPath(path, paint);
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canvas->restore();
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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struct FillAndName {
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SkPath::FillType fFill;
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const char* fName;
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};
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static const FillAndName gFills[] = {
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{SkPath::kWinding_FillType, "Winding"},
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{SkPath::kEvenOdd_FillType, "Even / Odd"},
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{SkPath::kInverseWinding_FillType, "Inverse Winding"},
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{SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
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};
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struct StyleAndName {
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SkPaint::Style fStyle;
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const char* fName;
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};
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static const StyleAndName gStyles[] = {
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{SkPaint::kFill_Style, "Fill"},
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{SkPaint::kStroke_Style, "Stroke"},
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{SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
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};
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SkPaint titlePaint;
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titlePaint.setColor(SK_ColorBLACK);
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titlePaint.setAntiAlias(true);
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titlePaint.setLCDRenderText(true);
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titlePaint.setTextSize(24 * SK_Scalar1);
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const char title[] = "Empty Paths Drawn Into Rectangle Clips With Indicated Style and Fill";
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canvas->drawText(title, strlen(title),
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40 * SK_Scalar1,
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100*SK_Scalar1,
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titlePaint);
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SkRandom rand;
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SkRect rect = SkRect::MakeWH(125*SK_Scalar1, 100*SK_Scalar1);
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int i = 0;
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canvas->save();
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canvas->translate(80 * SK_Scalar1, 0);
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canvas->save();
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for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
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for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
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if (0 == i % 4) {
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canvas->restore();
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canvas->translate(0, rect.height() + 50 * SK_Scalar1);
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canvas->save();
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} else {
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canvas->translate(rect.width() + 100 * SK_Scalar1, 0);
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}
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++i;
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SkColor color = rand.nextU();
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color = 0xff000000| color; // force solid
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this->drawEmpty(canvas, color, rect,
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gStyles[style].fStyle, gFills[fill].fFill);
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SkPaint rectPaint;
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rectPaint.setColor(SK_ColorBLACK);
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rectPaint.setStyle(SkPaint::kStroke_Style);
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rectPaint.setStrokeWidth(-1);
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rectPaint.setAntiAlias(true);
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canvas->drawRect(rect, rectPaint);
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char label[1024];
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sprintf(label, "%s, %s", gStyles[style].fName,
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gFills[fill].fName);
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SkPaint labelPaint;
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labelPaint.setColor(color);
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labelPaint.setAntiAlias(true);
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labelPaint.setLCDRenderText(true);
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canvas->drawText(label, strlen(label),
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0, rect.height() + 15 * SK_Scalar1,
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labelPaint);
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}
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}
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canvas->restore();
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canvas->restore();
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}
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private:
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typedef SampleView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new EmptyPathView; }
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static SkViewRegister reg(MyFactory);
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