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WindowServer+LibGUI: Allow changing whether windows have alpha channels.

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Use this in Terminal to tell the window server to not bother with the alpha
channel in the backing store if we're running without transparency.
Semi-transparent terminals look neat but they slow everything down, so this
keeps things fast while making it easy to switch to the flashy mode. :^)
This commit is contained in:
Andreas Kling 2019-05-03 21:07:16 +02:00
parent 2470fdcd9b
commit 6a5d92f0ad
9 changed files with 65 additions and 2 deletions
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20
Servers/WindowServer/WSClientConnection.cpp
View file

@ -629,6 +629,24 @@ void WSClientConnection::handle_request(const WSAPISetWindowOverrideCursorReques
window.set_override_cursor(WSCursor::create(request.cursor()));
}
void WSClientConnection::handle_request(const WSAPISetWindowHasAlphaChannelRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("WSAPISetWindowHasAlphaChannelRequest: Bad window ID");
return;
}
auto& window = *(*it).value;
window.set_has_alpha_channel(request.value());
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidSetWindowHasAlphaChannel;
response.window_id = window_id;
response.value = request.value();
post_message(response);
}
void WSClientConnection::handle_request(const WSWMAPISetActiveWindowRequest& request)
{
auto* client = WSClientConnection::from_client_id(request.target_client_id());
@ -747,6 +765,8 @@ void WSClientConnection::on_request(const WSAPIClientRequest& request)
return handle_request(static_cast<const WSAPIPopupMenuRequest&>(request));
case WSEvent::APIDismissMenuRequest:
return handle_request(static_cast<const WSAPIDismissMenuRequest&>(request));
case WSEvent::APISetWindowHasAlphaChannelRequest:
return handle_request(static_cast<const WSAPISetWindowHasAlphaChannelRequest&>(request));
default:
break;
}