зеркало из https://github.com/mozilla/moz-skia.git
135 строки
3.7 KiB
C++
135 строки
3.7 KiB
C++
#include "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkPicture.h"
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#include "SkView.h"
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#include "SkRectShape.h"
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#include "SkGroupShape.h"
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static SkRect make_rect(int l, int t, int r, int b) {
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SkRect rect;
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rect.set(SkIntToScalar(l), SkIntToScalar(t),
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SkIntToScalar(r), SkIntToScalar(b));
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return rect;
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}
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static SkShape* make_shape0(bool red) {
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SkRectShape* s = new SkRectShape;
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s->setRect(make_rect(10, 10, 90, 90));
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if (red) {
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s->paint().setColor(SK_ColorRED);
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}
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return s;
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}
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static SkShape* make_shape1() {
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SkRectShape* s = new SkRectShape;
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s->setOval(make_rect(10, 10, 90, 90));
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s->paint().setColor(SK_ColorBLUE);
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return s;
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}
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static SkShape* make_shape2() {
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SkRectShape* s = new SkRectShape;
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s->setRRect(make_rect(10, 10, 90, 90),
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SkIntToScalar(20), SkIntToScalar(20));
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s->paint().setColor(SK_ColorGREEN);
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return s;
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}
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///////////////////////////////////////////////////////////////////////////////
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class ShapesView : public SkView {
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SkGroupShape fGroup;
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SkMatrixRef* fMatrixRefs[4];
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public:
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ShapesView() {
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SkMatrix m;
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fGroup.appendShape(make_shape0(false))->unref();
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m.setRotate(SkIntToScalar(30), SkIntToScalar(50), SkIntToScalar(50));
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m.postTranslate(0, SkIntToScalar(120));
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fGroup.appendShape(make_shape0(true), m)->unref();
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m.setTranslate(SkIntToScalar(120), 0);
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fGroup.appendShape(make_shape1(), m)->unref();
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m.postTranslate(0, SkIntToScalar(120));
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fGroup.appendShape(make_shape2(), m)->unref();
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for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrixRefs); i++) {
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SkSafeRef(fMatrixRefs[i] = fGroup.getShapeMatrixRef(i));
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}
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fAngle = 0;
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}
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virtual ~ShapesView() {
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for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrixRefs); i++) {
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SkSafeUnref(fMatrixRefs[i]);
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}
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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, "Shapes");
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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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int fAngle;
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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SkMatrix saveM = *fMatrixRefs[3];
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fAngle = (fAngle + 5) % 360;
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SkScalar c = SkIntToScalar(50);
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fMatrixRefs[3]->preRotate(SkIntToScalar(fAngle), c, c);
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SkMatrix matrix;
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SkGroupShape* gs = new SkGroupShape;
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SkAutoUnref aur(gs);
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gs->appendShape(&fGroup);
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matrix.setScale(-SK_Scalar1, SK_Scalar1);
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matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
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gs->appendShape(&fGroup, matrix);
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matrix.setTranslate(SkIntToScalar(240), 0);
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matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
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gs->appendShape(&fGroup, matrix);
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#if 0
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canvas->drawShape(gs);
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#else
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SkPicture pict;
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SkCanvas* cv = pict.beginRecording(1000, 1000);
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cv->scale(SK_ScalarHalf, SK_ScalarHalf);
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cv->drawShape(gs);
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cv->translate(SkIntToScalar(680), SkIntToScalar(480));
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cv->scale(-SK_Scalar1, SK_Scalar1);
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cv->drawShape(gs);
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pict.endRecording();
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canvas->drawPicture(pict);
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#endif
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*fMatrixRefs[3] = saveM;
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this->inval(NULL);
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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 ShapesView; }
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static SkViewRegister reg(MyFactory);
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