本文整理汇总了C++中cairo::RefPtr::rotate_degrees方法的典型用法代码示例。如果您正苦于以下问题：C++ RefPtr::rotate_degrees方法的具体用法？C++ RefPtr::rotate_degrees怎么用？C++ RefPtr::rotate_degrees使用的例子？那么恭喜您, 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cairo::RefPtr的用法示例。
在下文中一共展示了RefPtr::rotate_degrees方法的3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: RestoreContext
void Thing::RestoreContext(Cairo::RefPtr<Cairo::Context> myCr) const
{
myCr->rotate_degrees(-orientationAngle);
myCr->translate(-position[0], -position[1]);
myCr->scale(1/scalingFactor, 1/scalingFactor);
}示例2: drawImage
void ImageDrawable::drawImage(const Cairo::RefPtr<Cairo::Context> &cr, const Gtk::Allocation &allocation) {
auto image = images->current();
auto surface = image->getPrimary();
int rwidth, rheight;
double rscale;
double rx, ry;
//cout << "image " << iwidth << "x" << iheight << " " << iorientation.first << "," << iorientation.second << endl;
calcRenderedImage(image, allocation, rwidth, rheight, rscale, rx, ry);
cr->translate(rx, ry);
cr->scale(rscale, rscale);
waiting = !surface;
if (image->isPrimaryFailed()) {
// TODO display fancy failed indicator
cr->set_source_rgb(0.75, 0.5, 0.5);
cr->rectangle(0, 0, rwidth, rheight);
cr->clip();
cr->paint();
return;
} else if (!surface) {
// TODO display fancy loading animation
cr->set_source_rgb(0.5, 0.75, 0.5);
cr->rectangle(0, 0, rwidth, rheight);
cr->clip();
cr->paint();
return;
}
switch (image->getOrientation().first) {
case Image::Rotate::ROTATE_NONE:
break;
case Image::Rotate::ROTATE_90:
cr->translate(image->height(), 0);
cr->rotate_degrees(90);
break;
case Image::Rotate::ROTATE_180:
cr->translate(image->width(), image->height());
cr->rotate_degrees(180);
break;
case Image::Rotate::ROTATE_270:
cr->translate(0, image->width());
cr->rotate_degrees(270);
break;
}
if (image->getOrientation().second) {
cr->translate(image->width(), 0);
cr->scale(-1, 1);
}
auto pattern = Cairo::SurfacePattern::create(surface);
pattern->set_filter(Cairo::Filter::FILTER_FAST);
cr->set_source(pattern);
//auto start = chrono::steady_clock::now();
cr->paint();
//auto stop = chrono::steady_clock::now();
//cout << "paint " << chrono::duration_cast<chrono::milliseconds>(stop - start).count() << "ms" << endl;
if (afPoints) {
//start = chrono::steady_clock::now();
auto properties = image->getProperties();
valarray<double> dashes(5.0 / rscale, 5.0 / rscale);
cr->save();
cr->set_operator(static_cast<Cairo::Operator>(CAIRO_OPERATOR_DIFFERENCE));
for (auto &rect : properties.focusPoints) {
if (properties.focusPointsActive.find(rect) != properties.focusPointsActive.cend()) {
cr->set_source_rgb(1, 0, 1);
cr->set_line_width(4.0 / rscale);
cr->unset_dash();
} else if (properties.focusPointsSelected.find(rect) != properties.focusPointsSelected.cend()) {
cr->set_source_rgb(1, 0, 0);
cr->set_line_width(2.0 / rscale);
cr->unset_dash();
} else {
cr->set_source_rgb(1, 1, 1);
cr->set_line_width(1.0 / rscale);
cr->set_dash(dashes, 0);
}
cr->rectangle(rect.x, rect.y, rect.width, rect.height);
cr->stroke();
}
cr->restore();
//stop = chrono::steady_clock::now();
//cout << "afpaint " << chrono::duration_cast<chrono::milliseconds>(stop - start).count() << "ms" << endl;
}
}示例3: TransformContext
void Thing::TransformContext(Cairo::RefPtr<Cairo::Context> myCr) const
{
myCr->scale(scalingFactor, scalingFactor);
myCr->translate(position[0], position[1]);
myCr->rotate_degrees(-orientationAngle);
}