261b8e2ca1
git-svn-id: http://skia.googlecode.com/svn/trunk@1129 2bbb7eff-a529-9590-31e7-b0007b416f81
135 lines
3.3 KiB
C++
135 lines
3.3 KiB
C++
#include "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkView.h"
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#include "SkBlurMaskFilter.h"
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#include "SkColorMatrixFilter.h"
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#include "SkDiscretePathEffect.h"
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#include "SkGradientShader.h"
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#include "SkEdgeClipper.h"
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static void test_edgeclipper() {
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SkPoint pts[] = {
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{ -8.38822452e+21f, -7.69721471e+19f },
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{ 1.57645875e+23f, 1.44634003e+21f },
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{ 1.61519691e+23f, 1.48208059e+21f },
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{ 3.13963584e+23f, 2.88057438e+21f }
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};
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SkRect clip = { 0, 0, 300, 200 };
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SkEdgeClipper clipper;
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clipper.clipCubic(pts, clip);
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}
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///////////
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//#define COLOR 0xFFFF8844
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#define COLOR 0xFF888888
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static void paint_proc0(SkPaint* paint) {
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}
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static void paint_proc1(SkPaint* paint) {
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paint->setMaskFilter(SkBlurMaskFilter::Create(2,
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SkBlurMaskFilter::kNormal_BlurStyle))->unref();
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}
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static void paint_proc2(SkPaint* paint) {
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SkScalar dir[3] = { 1, 1, 1};
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paint->setMaskFilter(
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SkBlurMaskFilter::CreateEmboss(dir, 0.1f, 0.05f, 1))->unref();
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}
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static void paint_proc3(SkPaint* paint) {
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SkColor colors[] = { SK_ColorRED, COLOR, SK_ColorBLUE };
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SkPoint pts[] = { 3, 0, 7, 5 };
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paint->setShader(SkGradientShader::CreateLinear(pts, colors, NULL, SK_ARRAY_COUNT(colors),
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SkShader::kMirror_TileMode))->unref();
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}
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static void paint_proc5(SkPaint* paint) {
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paint_proc3(paint);
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paint_proc2(paint);
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}
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typedef void (*PaintProc)(SkPaint*);
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const PaintProc gPaintProcs[] = {
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paint_proc0,
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paint_proc1,
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paint_proc2,
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paint_proc3,
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paint_proc5,
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};
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///////////////////////////////////////////////////////////////////////////////
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class EffectsView : public SkView {
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public:
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SkPath fPath;
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SkPaint fPaint[SK_ARRAY_COUNT(gPaintProcs)];
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EffectsView() {
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size_t i;
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const float pts[] = {
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0, 0,
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10, 0,
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10, 5,
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20, -5,
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10, -15,
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10, -10,
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0, -10
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};
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fPath.moveTo(pts[0], pts[1]);
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for (i = 2; i < SK_ARRAY_COUNT(pts); i += 2) {
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fPath.lineTo(pts[i], pts[i+1]);
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}
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for (i = 0; i < SK_ARRAY_COUNT(gPaintProcs); i++) {
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fPaint[i].setAntiAlias(true);
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fPaint[i].setColor(COLOR);
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gPaintProcs[i](&fPaint[i]);
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}
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test_edgeclipper();
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SkColorMatrix cm;
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cm.setRotate(SkColorMatrix::kG_Axis, 180);
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cm.setIdentity();
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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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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "Effects");
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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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canvas->drawColor(0xFFDDDDDD);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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canvas->scale(3, 3);
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canvas->translate(10, 30);
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for (size_t i = 0; i < SK_ARRAY_COUNT(fPaint); i++) {
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canvas->drawPath(fPath, fPaint[i]);
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canvas->translate(32, 0);
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}
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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 EffectsView; }
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static SkViewRegister reg(MyFactory);
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