Method onDraw

snap_drawing/src/snap_drawing/cpp/Layers/TextLayer.cpp:43–73

    if (customUnderlineStyle) {
        paint.setStroke(true);
        paint.setStrokeWidth(customUnderlineStyle->height);
        paint.setStrokeCap(PaintStrokeCapButt);
        if (customUnderlineStyle->isPatterned()) {
            paint.setStrokeDashPattern(customUnderlineStyle->onWidth, customUnderlineStyle->offWidth);
        }

        auto path = makeTextDecorationPath(bounds);
        drawingContext.drawPaint(paint, path);
    } else if (style == TextLayoutDecorationStyleDashed) {
        auto strokeWidth = std::max<Scalar>(bounds.height(), 1.0f);
        paint.setStroke(true);
        paint.setStrokeWidth(strokeWidth);
        paint.setStrokeCap(PaintStrokeCapButt);
        paint.setStrokeDashPattern(strokeWidth * 3.0f, strokeWidth * 2.0f);

        auto path = makeTextDecorationPath(bounds);
        drawingContext.drawPaint(paint, path);
    } else if (style == TextLayoutDecorationStyleDotted) {
        auto strokeWidth = std::max<Scalar>(bounds.height(), 1.0f);
        paint.setStroke(false);
        paint.setStrokeDotPattern(strokeWidth / 2.0f, strokeWidth * 2.0f);

        auto path = makeTextDecorationPath(bounds);
        drawingContext.drawPaint(paint, path);
    } else {
        drawingContext.drawPaint(paint, bounds);
    }
}

TextLayer::TextLayer(const Ref<Resources>& resources) : Layer(resources) {
    _textPaint.setAntiAlias(true);
    _gradientWrapper = GradientWrapper();
}