本文整理汇总了C++中SkRect::offsetTo方法的典型用法代码示例。如果您正苦于以下问题：C++ SkRect::offsetTo方法的具体用法？C++ SkRect::offsetTo怎么用？C++ SkRect::offsetTo使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SkRect的用法示例。
在下文中一共展示了SkRect::offsetTo方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: onDraw
void onDraw(SkCanvas* canvas) override {
canvas->drawARGB(255, 0, 0, 0);
SkRect r = SkRect::MakeXYWH(16.5f, 16.5f, 96.0f, 96.0f);
SkPaint p0;
p0.setColor(SK_ColorWHITE);
p0.setAntiAlias(true);
canvas->drawRect(r, p0);
r = SkRect::MakeXYWH(3.5f, 3.5f, 59.0f, 59.0f);
// UL corner: replace white with green with a tight tolerance
SkPaint p1;
p1.setColor(SK_ColorGREEN);
p1.setAntiAlias(true);
p1.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
5,
SkAvoidXfermode::kTargetColor_Mode))->unref();
canvas->drawRect(r, p1);
r.offsetTo(65.5f, 3.5f);
// UR corner: draw red everywhere except white with a tight tolerance
SkPaint p2;
p2.setColor(SK_ColorRED);
p2.setAntiAlias(true);
p2.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
250,
SkAvoidXfermode::kAvoidColor_Mode))->unref();
canvas->drawRect(r, p2);
r.offsetTo(3.5f, 65.5f);
// LL corner: replace white with blue with a loose tolerance
SkPaint p3;
p3.setColor(SK_ColorBLUE);
p3.setAntiAlias(true);
p3.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
250,
SkAvoidXfermode::kTargetColor_Mode))->unref();
canvas->drawRect(r, p3);
r.offsetTo(65.5f, 65.5f);
// LR corner: draw yellow everywhere except white with a loose tolerance
SkPaint p4;
p4.setColor(SK_ColorYELLOW);
p4.setAntiAlias(true);
p4.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
5,
SkAvoidXfermode::kAvoidColor_Mode))->unref();
canvas->drawRect(r, p4);
}示例2: onDraw
void onDraw(SkCanvas* canvas) override {
canvas->drawBitmap(fBM, 0, 0);
SkRect r = SkRect::MakeIWH(64, 64);
// UL corner: replace white with black with a tight tolerance
SkPaint p1;
p1.setColor(SK_ColorBLACK);
p1.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
5,
SkAvoidXfermode::kTargetColor_Mode))->unref();
canvas->drawRect(r, p1);
r.offsetTo(64, 0.0f);
// UR corner: draw black everywhere except white with a tight tolerance
SkPaint p2;
p2.setColor(SK_ColorBLACK);
p2.setXfermode(SkAvoidXfermode::Create(SK_ColorWHITE,
250,
SkAvoidXfermode::kAvoidColor_Mode))->unref();
canvas->drawRect(r, p2);
r.offsetTo(0.0f, 64);
// LL corner: replace red with blue with a loose tolerance
SkPaint p3;
p3.setColor(SK_ColorBLUE);
p3.setXfermode(SkAvoidXfermode::Create(SK_ColorRED,
250,
SkAvoidXfermode::kTargetColor_Mode))->unref();
canvas->drawRect(r, p3);
r.offsetTo(64, 64);
// LR corner: draw black everywhere except red with a loose tolerance
SkPaint p4;
p4.setColor(SK_ColorBLACK);
p4.setXfermode(SkAvoidXfermode::Create(SK_ColorRED,
5,
SkAvoidXfermode::kAvoidColor_Mode))->unref();
canvas->drawRect(r, p4);
}示例3: onDraw
void onDraw(SkCanvas* canvas) override {
canvas->drawBitmap(fBM, 0, 0);
SkRect r = SkRect::MakeIWH(256, 256);
// Negate the red channel of the dst (via the ancillary color) but leave
// the green & blue channels alone
SkPaint p1;
p1.setColor(SK_ColorBLACK); // noop
p1.setXfermode(SkPixelXorXfermode::Create(0x7FFF0000))->unref();
canvas->drawRect(r, p1);
r.offsetTo(256.0f, 0.0f);
// Negate the dst color via the src color
SkPaint p2;
p2.setColor(SK_ColorWHITE);
p2.setXfermode(SkPixelXorXfermode::Create(SK_ColorBLACK))->unref(); // noop
canvas->drawRect(r, p2);
r.offsetTo(0.0f, 256.0f);
// Just return the original color
SkPaint p3;
p3.setColor(SK_ColorBLACK); // noop
p3.setXfermode(SkPixelXorXfermode::Create(SK_ColorBLACK))->unref(); // noop
canvas->drawRect(r, p3);
r.offsetTo(256.0f, 256.0f);
// Negate the red & green channels (via the ancillary color) but leave
// the blue channel alone
SkPaint p4;
p4.setColor(SK_ColorBLACK); // noop
p4.setXfermode(SkPixelXorXfermode::Create(SK_ColorYELLOW))->unref();
canvas->drawRect(r, p4);
}示例4: GaussianBlur
//.........这里部分代码省略.........
i < scaleFactorY ? 0.5f : 1.0f);
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
dstDrawContext->fillRectToRect(clip, paint, SkMatrix::I(), dstRect, srcRect);
srcDrawContext.swap(dstDrawContext);
srcRect = dstRect;
srcTexture = dstTexture;
SkTSwap(dstTexture, tempTexture);
localSrcBounds = srcRect;
}
// For really small blurs (certainly no wider than 5x5 on desktop gpus) it is faster to just
// launch a single non separable kernel vs two launches
srcRect = localDstBounds;
if (sigmaX > 0.0f && sigmaY > 0.0f &&
(2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) {
// We shouldn't be scaling because this is a small size blur
SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY));
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
convolve_gaussian_2d(dstDrawContext, clip, srcRect, srcOffset,
srcTexture, radiusX, radiusY, sigmaX, sigmaY, srcBounds);
srcDrawContext.swap(dstDrawContext);
srcRect.offsetTo(0, 0);
srcTexture = dstTexture;
SkTSwap(dstTexture, tempTexture);
} else {
scale_rect(&srcRect, 1.0f / scaleFactorX, 1.0f / scaleFactorY);
srcRect.roundOut(&srcRect);
const SkIRect srcIRect = srcRect.roundOut();
if (sigmaX > 0.0f) {
if (scaleFactorX > 1) {
// TODO: if we pass in the source draw context we don't need this here
if (!srcDrawContext) {
srcDrawContext.reset(context->drawContext(srcTexture->asRenderTarget()));
if (!srcDrawContext) {
return nullptr;
}
}
// Clear out a radius to the right of the srcRect to prevent the
// X convolution from reading garbage.
clearRect = SkIRect::MakeXYWH(srcIRect.fRight, srcIRect.fTop,
radiusX, srcIRect.height());
srcDrawContext->clear(&clearRect, 0x0, false);
}
SkAutoTUnref<GrDrawContext> dstDrawContext(
context->drawContext(dstTexture->asRenderTarget()));
if (!dstDrawContext) {
return nullptr;
}
convolve_gaussian(dstDrawContext, clip, srcRect,
srcTexture, Gr1DKernelEffect::kX_Direction, radiusX, sigmaX,
srcBounds, srcOffset);