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C++ RefPtr::paint_with_alpha方法代码示例

本文整理汇总了C++中cairo::RefPtr::paint_with_alpha方法的典型用法代码示例。如果您正苦于以下问题:C++ RefPtr::paint_with_alpha方法的具体用法?C++ RefPtr::paint_with_alpha怎么用?C++ RefPtr::paint_with_alpha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cairo::RefPtr的用法示例。


在下文中一共展示了RefPtr::paint_with_alpha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: icon

void NodeRenderer::icon(const Cairo::RefPtr<Cairo::Context>& cr, AssetCache& cache)
{
	// path to icon not set
	if (s->icon_image.str().size() == 0 || s->icon_width == 0.0 || s->icon_height == 0.0)
		return;

	cr->save();

	Cairo::RefPtr<Cairo::ImageSurface> image = cache.getImage(s->icon_image.str());
	double width = s->icon_width < 0 ? image->get_width() : s->icon_width;
	double height = s->icon_height < 0 ? image->get_height() : s->icon_height;
	double x0 = floor(location.x - width/2.0);
	double y0 = floor(location.y - height/2.0);
	cr->translate(x0, y0);
	cr->scale(width / image->get_width(),
			  height / image->get_height());
	cr->set_source(image, 0, 0);

	if (s->icon_opacity < 1.0)
		cr->paint_with_alpha(s->icon_opacity);
	else
		cr->paint();

	cr->restore();
}
开发者ID:AMDmi3,项目名称:alacarte,代码行数:25,代码来源:node_renderer.cpp

示例2: window_expose_event

bool Liveplay::window_expose_event(GdkEventExpose *event) {
    Cairo::RefPtr<Cairo::Context> cr = Glib::wrap(event->window, true)->create_cairo_context();
    Gtk::Allocation a = liveplay_canvas->get_allocation();
    Gdk::Region region(a);
    region.intersect(Glib::wrap(event->region, true));
    Gdk::Cairo::add_region_to_path(cr, region);
    cr->clip();
    cr->set_operator(Cairo::OPERATOR_SOURCE);
    cr->set_source_rgb(0,0,0);
    cr->paint();
    //gdk_cairo_set_source_window(cr->cobj(), liveplay_canvas->get_window()->gobj(), a.get_x(), a.get_y()); gtk 2.24
    gdk_cairo_set_source_pixmap(cr->cobj(), liveplay_canvas->get_window()->gobj(), a.get_x(), a.get_y());
    cr->paint_with_alpha(pow(brightness_adj->get_value(),2.2));
    return false;
}
开发者ID:unclechu,项目名称:guitarix,代码行数:15,代码来源:liveplay.cpp

示例3: on_draw

bool GtkApplicationIconSublimer::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
  if (!this->application_icon)
  {
    LOG4CXX_DEBUG(logger, "Got no icon..");
    return false;
  }

  Gtk::Allocation allocation = get_allocation();
  const int height = allocation.get_height();

  Gdk::Cairo::set_source_pixbuf(cr, this->application_icon, 0, (height - this->application_icon->get_height()));
  cr->paint_with_alpha(0.2);

  return true;
}
开发者ID:pulser,项目名称:douane-dialog,代码行数:16,代码来源:gtk_application_icon_sublimer.cpp

示例4: Draw

void CardWidget::Draw(Cairo::RefPtr<Cairo::Context> cr, int x, int y)
{
	bool highlight = highlightOnHover && isMouseInArea;
	Cairo::RefPtr<Cairo::ImageSurface> image = PrefSlots::getImagesStorage().GetCardImage(card);
	cr->save();
	cr->translate(x, y);
	cr->scale(1.0 * width / image->get_width(), 1.0 * height / image->get_height());
	cr->rectangle(0, 0, image->get_width(), image->get_height());
	cr->clip();
	if( highlight ) {
		cr->save();
		cr->set_source_rgb(0.1, 0.8, 0.1);
		cr->paint();
		cr->restore();
	}
	cr->set_source(image, 0, 0);
	cr->paint_with_alpha( highlight ? 0.7 : 1.0 );
	cr->restore();
}
开发者ID:eshavlyugin,项目名称:Preferans,代码行数:19,代码来源:CardWidget.cpp


注:本文中的cairo::RefPtr::paint_with_alpha方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。