void
WindowList::Paint(Canvas &canvas)
{
const auto &list = this->list;
auto begin = list.rbegin(), end = list.rend();
/* find the last full window which covers all the other windows
behind it */
for (auto i = begin; i != end; ++i) {
Window &child = **i;
if (IsFullWindow(child, canvas.GetWidth(), canvas.GetHeight()))
begin = i;
}
for (auto i = begin; i != end; ++i) {
Window &child = **i;
if (!child.IsVisible())
continue;
SubCanvas sub_canvas(canvas, { child.GetLeft(), child.GetTop() },
child.GetSize());
#ifdef USE_MEMORY_CANVAS
if (sub_canvas.GetWidth() == 0 || sub_canvas.GetHeight() == 0)
/* this child window is completely outside the physical
screen */
continue;
#endif
child.Setup(sub_canvas);
child.OnPaint(sub_canvas);
}
}
void
WindowList::Paint(Canvas &canvas)
{
const auto &list = this->list;
auto begin = list.rbegin(), end = list.rend();
/* find the last full window which covers all the other windows
behind it */
for (auto i = begin; i != end; ++i) {
Window &child = **i;
if (IsFullWindow(child, canvas.GetWidth(), canvas.GetHeight()))
begin = i;
}
for (auto i = begin; i != end; ++i) {
Window &child = **i;
if (!child.IsVisible())
continue;
SubCanvas sub_canvas(canvas, { child.GetLeft(), child.GetTop() },
child.GetSize());
child.Setup(sub_canvas);
child.OnPaint(sub_canvas);
}
}
