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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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7
WindowServer/WSEvent.h
View file

@ -53,8 +53,15 @@ public:
bool isKeyEvent() const { return m_type == KeyUp || m_type == KeyDown; }
bool isPaintEvent() const { return m_type == Paint; }
Rect rect() const { return m_rect; }
void set_rect(const GUI_Rect& rect)
{
m_rect = rect;
}
private:
Type m_type { Invalid };
Rect m_rect;
};
class PaintEvent final : public WSEvent {

4
WindowServer/WSEventLoop.cpp
View file

@ -83,7 +83,9 @@ void WSEventLoop::post_event(WSEventReceiver* receiver, OwnPtr<WSEvent>&& event)
if (event->type() == WSEvent::WM_Invalidate) {
for (auto& queued_event : m_queued_events) {
if (receiver == queued_event.receiver && queued_event.event->type() == WSEvent::WM_Invalidate) {
if (receiver == queued_event.receiver
&& queued_event.event->type() == WSEvent::WM_Invalidate
&& (queued_event.event->rect().is_empty() || queued_event.event->rect().contains(event->rect()))) {
#ifdef WSEVENTLOOP_DEBUG
dbgprintf("Swallow WM_Invalidate\n");
#endif

2
WindowServer/WSWindow.cpp
View file

@ -75,7 +75,7 @@ void WSWindow::event(WSEvent& event)
gui_event.key.character = static_cast<KeyEvent&>(event).text()[0];
break;
case WSEvent::WM_Invalidate:
WSWindowManager::the().invalidate(*this);
WSWindowManager::the().invalidate(*this, event.rect());
return;
case WSEvent::WindowActivated:
gui_event.type = GUI_Event::Type::WindowActivated;

15
WindowServer/WSWindowManager.cpp
View file

@ -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);

1
WindowServer/WSWindowManager.h
View file

@ -34,6 +34,7 @@ public:
void draw_cursor();
void invalidate(const WSWindow&);
void invalidate(const WSWindow&, const Rect&);
void invalidate(const Rect&);
void invalidate();
void flush(const Rect&);