C++ SkRRect::setNinePatch方法代码示例

// Test that all the SkRRect entry points correctly handle un-sorted and
// zero-sized input rects
static void test_empty(skiatest::Reporter* reporter) {
    static const SkRect oooRects[] = {  // out of order
        { 100, 0, 0, 100 },  // ooo horizontal
        { 0, 100, 100, 0 },  // ooo vertical
        { 100, 100, 0, 0 },  // ooo both
    };

    static const SkRect emptyRects[] = {
        { 100, 100, 100, 200 }, // empty horizontal
        { 100, 100, 200, 100 }, // empty vertical
        { 100, 100, 100, 100 }, // empty both
        { 0, 0, 0, 0 }          // setEmpty-empty
    };

    static const SkVector radii[4] = { { 0, 1 }, { 2, 3 }, { 4, 5 }, { 6, 7 } };

    SkRRect r;

    for (size_t i = 0; i < SK_ARRAY_COUNT(oooRects); ++i) {
        r.setRect(oooRects[i]);
        REPORTER_ASSERT(reporter, !r.isEmpty());

        r.setOval(oooRects[i]);
        REPORTER_ASSERT(reporter, !r.isEmpty());

        r.setRectXY(oooRects[i], 1, 2);
        REPORTER_ASSERT(reporter, !r.isEmpty());

        r.setNinePatch(oooRects[i], 0, 1, 2, 3);
        REPORTER_ASSERT(reporter, !r.isEmpty());

        r.setRectRadii(oooRects[i], radii);
        REPORTER_ASSERT(reporter, !r.isEmpty());
    }

    for (size_t i = 0; i < SK_ARRAY_COUNT(emptyRects); ++i) {
        r.setRect(emptyRects[i]);
        REPORTER_ASSERT(reporter, r.isEmpty());

        r.setOval(emptyRects[i]);
        REPORTER_ASSERT(reporter, r.isEmpty());

        r.setRectXY(emptyRects[i], 1, 2);
        REPORTER_ASSERT(reporter, r.isEmpty());

        r.setNinePatch(emptyRects[i], 0, 1, 2, 3);
        REPORTER_ASSERT(reporter, r.isEmpty());

        r.setRectRadii(emptyRects[i], radii);
        REPORTER_ASSERT(reporter, r.isEmpty());
    }
}

 SkRRect makeRRect() {
     SkRRect rrect;
     RandomSetRRect rrectType = makeSetRRectType();
     if (fPrintName) {
         SkDebugf("%.*s%s\n", fPathDepth * 3, fTab, gRandomSetRRectNames[rrectType]);
     }
     switch (rrectType) {
     case kSetEmpty:
         rrect.setEmpty();
         break;
     case kSetRect: {
         SkRect rect = makeRect();
         rrect.setRect(rect);
     }
     break;
     case kSetOval: {
         SkRect oval = makeRect();
         rrect.setOval(oval);
     }
     break;
     case kSetRectXY: {
         SkRect rect = makeRect();
         SkScalar xRad = makeScalar();
         SkScalar yRad = makeScalar();
         rrect.setRectXY(rect, xRad, yRad);
     }
     break;
     case kSetNinePatch: {
         SkRect rect = makeRect();
         SkScalar leftRad = makeScalar();
         SkScalar topRad = makeScalar();
         SkScalar rightRad = makeScalar();
         SkScalar bottomRad = makeScalar();
         rrect.setNinePatch(rect, leftRad, topRad, rightRad, bottomRad);
         SkDebugf("");  // keep locals in scope
     }
     break;
     case kSetRectRadii: {
         SkRect rect = makeRect();
         SkVector radii[4];
         makeVectorArray(SK_ARRAY_COUNT(radii), radii);
         rrect.setRectRadii(rect, radii);
     }
     break;
     }
     return rrect;
 }

static void test_9patch_rrect(skiatest::Reporter* reporter,
                              const SkRect& rect,
                              SkScalar l, SkScalar t, SkScalar r, SkScalar b,
                              bool checkRadii) {
    SkRRect rr;
    rr.setNinePatch(rect, l, t, r, b);
    if (checkRadii) {
        path_contains_rrect_check(reporter, rr);
    } else {
        path_contains_rrect_nocheck(reporter, rr);
    }

    SkRRect rr2; // construct the same RR using the most general set function
    SkVector radii[4] = { { l, t }, { r, t }, { r, b }, { l, b } };
    rr2.setRectRadii(rect, radii);
    if (checkRadii) {
        path_contains_rrect_check(reporter, rr);
    } else {
        path_contains_rrect_nocheck(reporter, rr);
    }
}

static void test_9patch_rrect(skiatest::Reporter* reporter,
                              const SkRect& rect,
                              SkScalar l, SkScalar t, SkScalar r, SkScalar b,
                              bool checkRadii) {
    SkRRect rr;
    rr.setNinePatch(rect, l, t, r, b);

    REPORTER_ASSERT(reporter, SkRRect::kNinePatch_Type == rr.type());
    REPORTER_ASSERT(reporter, rr.rect() == rect);

    if (checkRadii) {
        // This test doesn't hold if the radii will be rescaled by SkRRect
        SkRect ninePatchRadii = { l, t, r, b };
        SkPoint rquad[4];
        ninePatchRadii.toQuad(rquad);
        for (int i = 0; i < 4; ++i) {
            REPORTER_ASSERT(reporter, rquad[i] == rr.radii((SkRRect::Corner) i));
        }
    }
    SkRRect rr2; // construct the same RR using the most general set function
    SkVector radii[4] = { { l, t }, { r, t }, { r, b }, { l, b } };
    rr2.setRectRadii(rect, radii);
    REPORTER_ASSERT(reporter, rr2 == rr && rr2.getType() == rr.getType());
}

void draw_paths(SkCanvas* canvas, ShadowMode mode) {
    SkTArray<SkPath> paths;
    paths.push_back().addRoundRect(SkRect::MakeWH(50, 50), 10, 10);
    SkRRect oddRRect;
    oddRRect.setNinePatch(SkRect::MakeWH(50, 50), 9, 13, 6, 16);
    paths.push_back().addRRect(oddRRect);
    paths.push_back().addRect(SkRect::MakeWH(50, 50));
    paths.push_back().addCircle(25, 25, 25);
    paths.push_back().cubicTo(100, 50, 20, 100, 0, 0);
    paths.push_back().addOval(SkRect::MakeWH(20, 60));

    // star
    SkTArray<SkPath> concavePaths;
    concavePaths.push_back().moveTo(0.0f, -33.3333f);
    concavePaths.back().lineTo(9.62f, -16.6667f);
    concavePaths.back().lineTo(28.867f, -16.6667f);
    concavePaths.back().lineTo(19.24f, 0.0f);
    concavePaths.back().lineTo(28.867f, 16.6667f);
    concavePaths.back().lineTo(9.62f, 16.6667f);
    concavePaths.back().lineTo(0.0f, 33.3333f);
    concavePaths.back().lineTo(-9.62f, 16.6667f);
    concavePaths.back().lineTo(-28.867f, 16.6667f);
    concavePaths.back().lineTo(-19.24f, 0.0f);
    concavePaths.back().lineTo(-28.867f, -16.6667f);
    concavePaths.back().lineTo(-9.62f, -16.6667f);
    concavePaths.back().close();

    // dumbbell
    concavePaths.push_back().moveTo(50, 0);
    concavePaths.back().cubicTo(100, 25, 60, 50, 50, 0);
    concavePaths.back().cubicTo(0, -25, 40, -50, 50, 0);

    static constexpr SkScalar kPad = 15.f;
    static constexpr SkScalar kLightR = 100.f;
    static constexpr SkScalar kHeight = 50.f;

    // transform light position relative to canvas to handle tiling
    SkPoint lightXY = canvas->getTotalMatrix().mapXY(250, 400);
    SkPoint3 lightPos = { lightXY.fX, lightXY.fY, 500 };

    canvas->translate(3 * kPad, 3 * kPad);
    canvas->save();
    SkScalar x = 0;
    SkScalar dy = 0;
    SkTDArray<SkMatrix> matrices;
    matrices.push()->reset();
    SkMatrix* m = matrices.push();
    m->setRotate(33.f, 25.f, 25.f);
    m->postScale(1.2f, 0.8f, 25.f, 25.f);
    for (auto& m : matrices) {
        for (int flags : { kNone_ShadowFlag, kTransparentOccluder_ShadowFlag }) {
            for (const auto& path : paths) {
                SkRect postMBounds = path.getBounds();
                m.mapRect(&postMBounds);
                SkScalar w = postMBounds.width() + kHeight;
                SkScalar dx = w + kPad;
                if (x + dx > kW - 3 * kPad) {
                    canvas->restore();
                    canvas->translate(0, dy);
                    canvas->save();
                    x = 0;
                    dy = 0;
                }

                canvas->save();
                canvas->concat(m);

                if (kDebugColorNoOccluders == mode || kDebugColorOccluders == mode) {
                    draw_shadow(canvas, path, kHeight, SK_ColorRED, lightPos, kLightR,
                                true, flags);
                    draw_shadow(canvas, path, kHeight, SK_ColorBLUE, lightPos, kLightR,
                                false, flags);
                } else if (kGrayscale == mode) {
                    SkColor ambientColor = SkColorSetARGB(0.1f * 255, 0, 0, 0);
                    SkColor spotColor = SkColorSetARGB(0.25f * 255, 0, 0, 0);
                    SkShadowUtils::DrawShadow(canvas, path, SkPoint3{0, 0, kHeight}, lightPos,
                                              kLightR, ambientColor, spotColor, flags);
                }

                SkPaint paint;
                paint.setAntiAlias(true);
                if (kDebugColorNoOccluders == mode) {
                    // Draw the path outline in green on top of the ambient and spot shadows.
                    if (SkToBool(flags & kTransparentOccluder_ShadowFlag)) {
                        paint.setColor(SK_ColorCYAN);
                    } else {
                        paint.setColor(SK_ColorGREEN);
                    }
                    paint.setStyle(SkPaint::kStroke_Style);
                    paint.setStrokeWidth(0);
                } else {
                    paint.setColor(kDebugColorOccluders == mode ? SK_ColorLTGRAY : SK_ColorWHITE);
                    if (SkToBool(flags & kTransparentOccluder_ShadowFlag)) {
                        paint.setAlpha(128);
                    }
                    paint.setStyle(SkPaint::kFill_Style);
                }
                canvas->drawPath(path, paint);
                canvas->restore();

//.........这里部分代码省略.........