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Make it possible to invalidate only a portion of a window.

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Use this in Terminal to only invalidate rows where anything changed.
This commit is contained in:
Andreas Kling 2019-01-18 04:37:49 +01:00
parent 9d7da26b4e
commit dff70021ab
15 changed files with 91 additions and 15 deletions
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15
WindowServer/WSWindowManager.cpp
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@ -412,6 +412,21 @@ void WSWindowManager::invalidate(const WSWindow& window)
invalidate(outerRectForWindow(window.rect()));
}
void WSWindowManager::invalidate(const WSWindow& window, const Rect& rect)
{
if (rect.is_empty()) {
invalidate(window);
return;
}
ASSERT_INTERRUPTS_ENABLED();
LOCKER(m_lock);
auto outer_rect = outerRectForWindow(window.rect());
auto inner_rect = rect;
inner_rect.move_by(window.position());
inner_rect.intersect(outer_rect);
invalidate(inner_rect);
}
void WSWindowManager::flush(const Rect& a_rect)
{
auto rect = Rect::intersection(a_rect, m_screen_rect);