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122 lines
2.9 KiB
122 lines
2.9 KiB
/* |
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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 "Sample.h" |
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#include "SkAAClip.h" |
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#include "SkCanvas.h" |
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#include "SkPath.h" |
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static void testop(const SkIRect& r0, const SkIRect& r1, SkRegion::Op op, |
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const SkIRect& expectedR) { |
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SkAAClip c0, c1, c2; |
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c0.setRect(r0); |
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c1.setRect(r1); |
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c2.op(c0, c1, op); |
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SkDEBUGCODE(SkIRect r2 = c2.getBounds()); |
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SkASSERT(r2 == expectedR); |
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} |
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static const struct { |
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SkIRect r0; |
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SkIRect r1; |
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SkRegion::Op op; |
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SkIRect expectedR; |
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} gRec[] = { |
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{{ 1, 2, 9, 3 }, { -3, 2, 5, 11 }, SkRegion::kDifference_Op, { 5, 2, 9, 3 }}, |
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{{ 1, 10, 5, 13 }, { 1, 2, 5, 11 }, SkRegion::kDifference_Op, { 1, 11, 5, 13 }}, |
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{{ 1, 10, 5, 13 }, { 1, 2, 5, 11 }, SkRegion::kReverseDifference_Op, { 1, 2, 5, 10 }}, |
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}; |
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static void testop() { |
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for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) { |
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testop(gRec[i].r0, gRec[i].r1, gRec[i].op, gRec[i].expectedR); |
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} |
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} |
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static void drawClip(SkCanvas* canvas, const SkAAClip& clip) { |
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SkMask mask; |
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SkBitmap bm; |
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clip.copyToMask(&mask); |
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SkAutoMaskFreeImage amfi(mask.fImage); |
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bm.installMaskPixels(mask); |
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SkPaint paint; |
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canvas->drawBitmap(bm, |
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SK_Scalar1 * mask.fBounds.fLeft, |
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SK_Scalar1 * mask.fBounds.fTop, |
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&paint); |
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} |
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class AAClipView : public Sample { |
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public: |
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AAClipView() { |
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testop(); |
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} |
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protected: |
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virtual bool onQuery(Sample::Event* evt) { |
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if (Sample::TitleQ(*evt)) { |
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Sample::TitleR(evt, "AAClip"); |
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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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virtual void onDrawContent(SkCanvas* canvas) { |
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#if 1 |
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SkAAClip aaclip; |
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SkPath path; |
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SkRect bounds; |
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bounds.set(0, 0, 20, 20); |
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bounds.inset(SK_ScalarHalf, SK_ScalarHalf); |
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// path.addRect(bounds); |
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// path.addOval(bounds); |
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path.addRoundRect(bounds, 4, 4); |
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aaclip.setPath(path); |
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canvas->translate(30, 30); |
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drawClip(canvas, aaclip); |
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SkAAClip aaclip2; |
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path.offset(10, 10); |
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aaclip2.setPath(path); |
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canvas->translate(30, 0); |
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drawClip(canvas, aaclip2); |
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SkAAClip aaclip3; |
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aaclip3.op(aaclip, aaclip2, SkRegion::kIntersect_Op); |
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canvas->translate(30, 0); |
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drawClip(canvas, aaclip3); |
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#endif |
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#if 0 |
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SkRect r; |
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r.set(0, 0, this->width(), this->height()); |
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r.inset(20, 20); |
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canvas->clipRect(r); |
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SkPath path; |
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path.addRect(r); |
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SkPaint paint; |
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paint.setAntiAlias(true); |
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paint.setColor(SK_ColorRED); |
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canvas->drawPath(path, paint); |
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#endif |
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} |
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private: |
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typedef Sample INHERITED; |
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}; |
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////////////////////////////////////////////////////////////////////////////// |
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DEF_SAMPLE( return new AAClipView(); )
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