164 lines
4.4 KiB
C++
164 lines
4.4 KiB
C++
#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkImageDecoder.h"
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#include "SkPath.h"
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#include "SkPorterDuff.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "SkXfermode.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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class PathView : public SkView {
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public:
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int fDStroke, fStroke, fMinStroke, fMaxStroke;
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SkPath fPath[6];
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bool fShowHairline;
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PathView()
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{
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fShowHairline = false;
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fDStroke = 1;
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fStroke = 10;
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fMinStroke = 10;
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fMaxStroke = 180;
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const int V = 85;
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fPath[0].moveTo(SkIntToScalar(40), SkIntToScalar(70));
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fPath[0].lineTo(SkIntToScalar(70), SkIntToScalar(70) + SK_Scalar1/1);
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fPath[0].lineTo(SkIntToScalar(110), SkIntToScalar(70));
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fPath[1].moveTo(SkIntToScalar(40), SkIntToScalar(70));
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fPath[1].lineTo(SkIntToScalar(70), SkIntToScalar(70) - SK_Scalar1/1);
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fPath[1].lineTo(SkIntToScalar(110), SkIntToScalar(70));
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fPath[2].moveTo(SkIntToScalar(V), SkIntToScalar(V));
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fPath[2].lineTo(SkIntToScalar(50), SkIntToScalar(V));
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fPath[2].lineTo(SkIntToScalar(50), SkIntToScalar(50));
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fPath[3].moveTo(SkIntToScalar(50), SkIntToScalar(50));
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fPath[3].lineTo(SkIntToScalar(50), SkIntToScalar(V));
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fPath[3].lineTo(SkIntToScalar(V), SkIntToScalar(V));
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fPath[4].moveTo(SkIntToScalar(50), SkIntToScalar(50));
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fPath[4].lineTo(SkIntToScalar(50), SkIntToScalar(V));
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fPath[4].lineTo(SkIntToScalar(52), SkIntToScalar(50));
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fPath[5].moveTo(SkIntToScalar(52), SkIntToScalar(50));
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fPath[5].lineTo(SkIntToScalar(50), SkIntToScalar(V));
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fPath[5].lineTo(SkIntToScalar(50), SkIntToScalar(50));
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}
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virtual ~PathView()
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{
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}
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void nextStroke()
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{
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fStroke += fDStroke;
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if (fStroke > fMaxStroke || fStroke < fMinStroke)
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fDStroke = -fDStroke;
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}
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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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{
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if (SampleCode::TitleQ(*evt))
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{
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SampleCode::TitleR(evt, "Paths");
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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 drawBG(SkCanvas* canvas)
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{
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canvas->drawColor(0xFFDDDDDD);
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// canvas->drawColor(SK_ColorWHITE);
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}
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void drawPath(SkCanvas* canvas, const SkPath& path, SkPaint::Join j)
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{
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeJoin(j);
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paint.setStrokeWidth(SkIntToScalar(fStroke));
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if (fShowHairline)
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{
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SkPath fill;
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paint.getFillPath(path, &fill);
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paint.setStrokeWidth(0);
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canvas->drawPath(fill, paint);
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}
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else
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canvas->drawPath(path, paint);
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paint.setColor(SK_ColorRED);
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paint.setStrokeWidth(0);
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canvas->drawPath(path, paint);
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}
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virtual void onDraw(SkCanvas* canvas)
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{
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this->drawBG(canvas);
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canvas->translate(SkIntToScalar(50), SkIntToScalar(50));
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static const SkPaint::Join gJoins[] = {
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SkPaint::kBevel_Join,
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SkPaint::kMiter_Join,
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SkPaint::kRound_Join
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};
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for (int i = 0; i < SK_ARRAY_COUNT(gJoins); i++)
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{
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canvas->save();
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for (int j = 0; j < SK_ARRAY_COUNT(fPath); j++)
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{
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this->drawPath(canvas, fPath[j], gJoins[i]);
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canvas->translate(SkIntToScalar(200), 0);
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}
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canvas->restore();
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canvas->translate(0, SkIntToScalar(200));
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}
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this->nextStroke();
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this->inval(NULL);
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}
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virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y)
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{
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fShowHairline = !fShowHairline;
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this->inval(NULL);
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return this->INHERITED::onFindClickHandler(x, y);
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}
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virtual bool onClick(Click* click)
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{
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return this->INHERITED::onClick(click);
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new PathView; }
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static SkViewRegister reg(MyFactory);
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