コード例 #1
0
ファイル: multipicturedraw.cpp プロジェクト: aseprite/skia
// Make an equilateral triangle path with its top corner at (originX, originY)
static SkPath make_tri_path(SkScalar originX, SkScalar originY) {
    SkPath tri;
    tri.moveTo(originX, originY);
    tri.rLineTo(SkScalarHalf(kTriSide), 1.5f * kTriSide / kRoot3);
    tri.rLineTo(-kTriSide, 0);
    tri.close();
    return tri;
}
コード例 #2
0
ファイル: multipicturedraw.cpp プロジェクト: aseprite/skia
// Create a hexagon centered at (originX, originY)
static SkPath make_hex_path(SkScalar originX, SkScalar originY) {
    SkPath hex;
    hex.moveTo(originX-kHexSide, originY);
    hex.rLineTo(SkScalarHalf(kHexSide), kRoot3Over2 * kHexSide);
    hex.rLineTo(SkIntToScalar(kHexSide), 0);
    hex.rLineTo(SkScalarHalf(kHexSide), -kHexSide * kRoot3Over2);
    hex.rLineTo(-SkScalarHalf(kHexSide), -kHexSide * kRoot3Over2);
    hex.rLineTo(-SkIntToScalar(kHexSide), 0);
    hex.close();
    return hex;
}
コード例 #3
0
ファイル: skia-shapes.cpp プロジェクト: codekiddy2/caskbench
void
skiaDrawTriangle(caskbench_context_t *ctx, shapes_t *args)
{
    // Temporarily disable anti-aliasing to work around crash in GlShader
    ctx->skia_paint->setAntiAlias(false);

    path.reset();
    path.moveTo(args->x, args->y + 2*args->radius);
    path.rLineTo(2*args->radius, 0);
    path.rLineTo(-args->radius, -2*args->radius);
    path.close();

    ctx->skia_canvas->drawPath(path, *(ctx->skia_paint));
    ctx->skia_paint->setAntiAlias(true);
}
コード例 #4
0
bool RenderThemeChromiumSkia::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& rect)
{
    SkCanvas* const canvas = i.context->platformContext()->canvas();
    const int right = rect.x() + rect.width();
    const int middle = rect.y() + rect.height() / 2;

    paintButtonLike(this, o, i, rect);

    SkPaint paint;
    paint.setARGB(0xff, 0, 0, 0);
    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kFill_Style);

    SkPath path;
    path.moveTo(right - 13, middle - 3);
    path.rLineTo(6, 0);
    path.rLineTo(-3, 6);
    path.close();
    canvas->drawPath(path, paint);

    return false;
}
bool RenderThemeChromiumSkia::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& rect)
{
    SkCanvas* const canvas = i.context->platformContext()->canvas();
    const int right = rect.x() + rect.width();
    const int middle = rect.y() + rect.height() / 2;

    paintButtonLike(this, o, i, rect);

    SkPaint paint;
    paint.setColor(SK_ColorBLACK);
    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kFill_Style);

    int arrowXPosition = (o->style()->direction() == RTL) ? rect.x() + 7 : right - 13;
    SkPath path;
    path.moveTo(arrowXPosition, middle - 3);
    path.rLineTo(6, 0);
    path.rLineTo(-3, 6);
    path.close();
    canvas->drawPath(path, paint);

    return false;
}
コード例 #6
0
static void draw_vector_logo(SkCanvas* canvas, const SkRect& viewBox) {
    constexpr char kSkiaStr[] = "SKIA";
    constexpr SkScalar kGradientPad = .1f;
    constexpr SkScalar kVerticalSpacing = 0.25f;
    constexpr SkScalar kAccentScale = 1.20f;

    SkPaint paint;
    paint.setAntiAlias(true);
    paint.setSubpixelText(true);
    paint.setFakeBoldText(true);
    sk_tool_utils::set_portable_typeface(&paint);

    SkPath path;
    SkRect iBox, skiBox, skiaBox;
    paint.getTextPath("SKI", 3, 0, 0, &path);
    TightBounds(path, &skiBox);
    paint.getTextPath("I", 1, 0, 0, &path);
    TightBounds(path, &iBox);
    iBox.offsetTo(skiBox.fRight - iBox.width(), iBox.fTop);

    const size_t textLen = strlen(kSkiaStr);
    paint.getTextPath(kSkiaStr, textLen, 0, 0, &path);
    TightBounds(path, &skiaBox);
    skiaBox.outset(0, 2 * iBox.width() * (kVerticalSpacing + 1));

    const SkScalar accentSize = iBox.width() * kAccentScale;
    const SkScalar underlineY = iBox.bottom() +
        (kVerticalSpacing + SkScalarSqrt(3) / 2) * accentSize;
    SkMatrix m;
    m.setRectToRect(skiaBox, viewBox, SkMatrix::kFill_ScaleToFit);
    SkAutoCanvasRestore acr(canvas, true);
    canvas->concat(m);

    canvas->drawCircle(iBox.centerX(),
                       iBox.y() - (0.5f + kVerticalSpacing) * accentSize,
                       accentSize / 2,
                       paint);

    path.reset();
    path.moveTo(iBox.centerX() - accentSize / 2, iBox.bottom() + kVerticalSpacing * accentSize);
    path.rLineTo(accentSize, 0);
    path.lineTo(iBox.centerX(), underlineY);
    canvas->drawPath(path, paint);

    SkRect underlineRect = SkRect::MakeLTRB(iBox.centerX() - iBox.width() * accentSize * 3,
                                            underlineY,
                                            iBox.centerX(),
                                            underlineY + accentSize / 10);
    const SkPoint pts1[] = { SkPoint::Make(underlineRect.x(), 0),
                             SkPoint::Make(iBox.centerX(), 0) };
    const SkScalar pos1[] = { 0, 0.75f };
    const SkColor colors1[] = { SK_ColorTRANSPARENT, SK_ColorBLACK };
    SkASSERT(SK_ARRAY_COUNT(pos1) == SK_ARRAY_COUNT(colors1));
    paint.setShader(SkGradientShader::MakeLinear(pts1, colors1, pos1, SK_ARRAY_COUNT(pos1),
                                                 SkShader::kClamp_TileMode));
    canvas->drawRect(underlineRect, paint);

    const SkPoint pts2[] = { SkPoint::Make(iBox.x() - iBox.width() * kGradientPad, 0),
                             SkPoint::Make(iBox.right() + iBox.width() * kGradientPad, 0) };
    const SkScalar pos2[] = { 0, .01f, 1.0f/3, 1.0f/3, 2.0f/3, 2.0f/3, .99f, 1 };
    const SkColor colors2[] = {
        SK_ColorBLACK,
        0xffca5139,
        0xffca5139,
        0xff8dbd53,
        0xff8dbd53,
        0xff5460a5,
        0xff5460a5,
        SK_ColorBLACK
    };
    SkASSERT(SK_ARRAY_COUNT(pos2) == SK_ARRAY_COUNT(colors2));
    paint.setShader(SkGradientShader::MakeLinear(pts2, colors2, pos2, SK_ARRAY_COUNT(pos2),
                                                 SkShader::kClamp_TileMode));
    canvas->drawText(kSkiaStr, textLen, 0, 0, paint);
}
コード例 #7
0
ファイル: SamplePathFuzz.cpp プロジェクト: Arternis/skia
SkPath makePath() {
    SkPath path;
    for (uint32_t cIndex = 0; cIndex < fPathContourCount; ++cIndex) {
        uint32_t segments = makeSegmentCount();
        for (uint32_t sIndex = 0; sIndex < segments; ++sIndex) {
            RandomAddPath addPathType = makeAddPathType();
            ++fAddCount;
            if (fPrintName) {
                SkDebugf("%.*s%s\n", fPathDepth * 3, fTab,
                        gRandomAddPathNames[addPathType]);
            }
            switch (addPathType) {
                case kAddArc: {
                    SkRect oval = makeRect();
                    SkScalar startAngle = makeAngle();
                    SkScalar sweepAngle = makeAngle();
                    path.addArc(oval, startAngle, sweepAngle);
                    validate(path);
                    } break;
                case kAddRoundRect1: {
                    SkRect rect = makeRect();
                    SkScalar rx = makeScalar(), ry = makeScalar();
                    SkPath::Direction dir = makeDirection();
                    path.addRoundRect(rect, rx, ry, dir);
                    validate(path);
                    } break;
                case kAddRoundRect2: {
                    SkRect rect = makeRect();
                    SkScalar radii[8];
                    makeScalarArray(SK_ARRAY_COUNT(radii), radii);
                    SkPath::Direction dir = makeDirection();
                    path.addRoundRect(rect, radii, dir);
                    validate(path);
                    } break;
                case kAddRRect: {
                    SkRRect rrect = makeRRect();
                    SkPath::Direction dir = makeDirection();
                    path.addRRect(rrect, dir);
                    validate(path);
                    } break;
                case kAddPoly: {
                    SkTDArray<SkPoint> points;
                    makePointArray(&points);
                    bool close = makeBool();
                    path.addPoly(&points[0], points.count(), close);
                    validate(path);
                    } break;
                case kAddPath1:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkScalar dx = makeScalar();
                        SkScalar dy = makeScalar();
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, dx, dy, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kAddPath2:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kAddPath3:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        SkMatrix matrix = makeMatrix();
                        SkPath::AddPathMode mode = makeAddPathMode();
                        path.addPath(src, matrix, mode);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kReverseAddPath:
                    if (fPathDepth < fPathDepthLimit) {
                        ++fPathDepth;
                        SkPath src = makePath();
                        validate(src);
                        path.reverseAddPath(src);
                        --fPathDepth;
                        validate(path);
                    }
                    break;
                case kMoveToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.moveTo(x, y);
                    validate(path);
                    } break;
                case kRMoveToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.rMoveTo(x, y);
                    validate(path);
                    } break;
                case kLineToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.lineTo(x, y);
                    validate(path);
                    } break;
                case kRLineToPath: {
                    SkScalar x = makeScalar();
                    SkScalar y = makeScalar();
                    path.rLineTo(x, y);
                    validate(path);
                    } break;
                case kQuadToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.quadTo(pt[0], pt[1]);
                    validate(path);
                    } break;
                case kRQuadToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.rQuadTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY);
                    validate(path);
                    } break;
                case kConicToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar weight = makeScalar();
                    path.conicTo(pt[0], pt[1], weight);
                    validate(path);
                    } break;
                case kRConicToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar weight = makeScalar();
                    path.rConicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, weight);
                    validate(path);
                    } break;
                case kCubicToPath: {
                    SkPoint pt[3];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.cubicTo(pt[0], pt[1], pt[2]);
                    validate(path);
                    } break;
                case kRCubicToPath: {
                    SkPoint pt[3];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    path.rCubicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, pt[2].fX, pt[2].fY);
                    validate(path);
                    } break;
                case kArcToPath: {
                    SkPoint pt[2];
                    makePointArray(SK_ARRAY_COUNT(pt), pt);
                    SkScalar radius = makeScalar();
                    path.arcTo(pt[0], pt[1], radius);
                    validate(path);
                    } break;
                case kArcTo2Path: {
                    SkRect oval = makeRect();
                    SkScalar startAngle = makeAngle();
                    SkScalar sweepAngle = makeAngle();
                    bool forceMoveTo = makeBool();
                    path.arcTo(oval, startAngle, sweepAngle, forceMoveTo);
                    validate(path);
                    } break;
                case kClosePath:
                    path.close();
                    validate(path);
                    break;
            }
        }
    }
    return path;
}
コード例 #8
0
void PlatformThemeChromiumLinux::paintArrowButton(GraphicsContext* gc, const IntRect& rect, ArrowDirection direction, ControlStates states)
{
    SkCanvas* const canvas = gc->platformContext()->canvas();
    int widthMiddle, lengthMiddle;
    SkPaint paint;
    if (direction == North || direction == South) {
        widthMiddle = rect.width() / 2 + 1;
        lengthMiddle = rect.height() / 2 + 1;
    } else {
        lengthMiddle = rect.width() / 2 + 1;
        widthMiddle = rect.height() / 2 + 1;
    }

    // Calculate button color.
    SkScalar trackHSV[3];
    SkColorToHSV(trackColor(), trackHSV);
    SkColor buttonColor = saturateAndBrighten(trackHSV, 0, 0.2);
    SkColor backgroundColor = buttonColor;
    if (states & PressedState) {
        SkScalar buttonHSV[3];
        SkColorToHSV(buttonColor, buttonHSV);
        buttonColor = saturateAndBrighten(buttonHSV, 0, -0.1);
    } else if (states & HoverState) {
        SkScalar buttonHSV[3];
        SkColorToHSV(buttonColor, buttonHSV);
        buttonColor = saturateAndBrighten(buttonHSV, 0, 0.05);
    }

    SkIRect skrect;
    skrect.set(rect.x(), rect.y(), rect.x() + rect.width(), rect.y() + rect.height());
    // Paint the background (the area visible behind the rounded corners).
    paint.setColor(backgroundColor);
    canvas->drawIRect(skrect, paint);

    // Paint the button's outline and fill the middle
    SkPath outline;
    switch (direction) {
    case North:
        outline.moveTo(rect.x() + 0.5, rect.y() + rect.height() + 0.5);
        outline.rLineTo(0, -(rect.height() - 2));
        outline.rLineTo(2, -2);
        outline.rLineTo(rect.width() - 5, 0);
        outline.rLineTo(2, 2);
        outline.rLineTo(0, rect.height() - 2);
        break;
    case South:
        outline.moveTo(rect.x() + 0.5, rect.y() - 0.5);
        outline.rLineTo(0, rect.height() - 2);
        outline.rLineTo(2, 2);
        outline.rLineTo(rect.width() - 5, 0);
        outline.rLineTo(2, -2);
        outline.rLineTo(0, -(rect.height() - 2));
        break;
    case East:
        outline.moveTo(rect.x() - 0.5, rect.y() + 0.5);
        outline.rLineTo(rect.width() - 2, 0);
        outline.rLineTo(2, 2);
        outline.rLineTo(0, rect.height() - 5);
        outline.rLineTo(-2, 2);
        outline.rLineTo(-(rect.width() - 2), 0);
        break;
    case West:
        outline.moveTo(rect.x() + rect.width() + 0.5, rect.y() + 0.5);
        outline.rLineTo(-(rect.width() - 2), 0);
        outline.rLineTo(-2, 2);
        outline.rLineTo(0, rect.height() - 5);
        outline.rLineTo(2, 2);
        outline.rLineTo(rect.width() - 2, 0);
        break;
    }
    outline.close();

    paint.setStyle(SkPaint::kFill_Style);
    paint.setColor(buttonColor);
    canvas->drawPath(outline, paint);

    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kStroke_Style);
    SkScalar thumbHSV[3];
    SkColorToHSV(thumbInactiveColor(), thumbHSV);
    paint.setColor(outlineColor(trackHSV, thumbHSV));
    canvas->drawPath(outline, paint);

    // If the button is disabled or read-only, the arrow is drawn with the outline color.
    if (states & EnabledState && !(states & ReadOnlyState))
        paint.setColor(SK_ColorBLACK);

    paint.setAntiAlias(false);
    paint.setStyle(SkPaint::kFill_Style);

    SkPath path;
    // The constants in this block of code are hand-tailored to produce good
    // looking arrows without anti-aliasing.
    switch (direction) {
    case North:
        path.moveTo(rect.x() + widthMiddle - 4, rect.y() + lengthMiddle + 2);
        path.rLineTo(7, 0);
        path.rLineTo(-4, -4);
        break;
    case South:
        path.moveTo(rect.x() + widthMiddle - 4, rect.y() + lengthMiddle - 3);
        path.rLineTo(7, 0);
        path.rLineTo(-4, 4);
        break;
    case East:
        path.moveTo(rect.x() + lengthMiddle - 3, rect.y() + widthMiddle - 4);
        path.rLineTo(0, 7);
        path.rLineTo(4, -4);
        break;
    case West:
        path.moveTo(rect.x() + lengthMiddle + 1, rect.y() + widthMiddle - 5);
        path.rLineTo(0, 9);
        path.rLineTo(-4, -4);
        break;
    }
    path.close();

    canvas->drawPath(path, paint);
}