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fix how FrameTrees are copied

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This commit is contained in:
Tim Kuehn 2013-07-30 23:37:44 -07:00
parent 97a60f35e3
commit 00658b2ad0
1 changed files with 15 additions and 2 deletions
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17
src/components/main/constellation.rs
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@ -43,12 +43,25 @@ pub struct Constellation {
}
/// Stores the Id of the outermost frame's pipeline, along with a vector of children frames
#[deriving(Clone)]
struct FrameTree {
pipeline: @mut Pipeline,
parent: Option<@mut Pipeline>,
children: ~[@mut FrameTree],
}
// Need to clone the FrameTrees, but _not_ the Pipelines
impl Clone for FrameTree {
fn clone(&self) -> FrameTree {
let mut children = ~[];
for self.children.iter().advance |&frame_tree| {
children.push(@mut (*frame_tree).clone());
}
FrameTree {
pipeline: self.pipeline,
parent: self.parent.clone(),
children: children,
}
}
}
pub struct SendableFrameTree {
pipeline: Pipeline,
@ -562,7 +575,7 @@ impl Constellation {
// Create the next frame tree that will be given to the compositor
let next_frame_tree = match to_add.parent {
None => to_add, // to_add is the root
Some(_parent) => self.current_frame().get_ref().clone(),
Some(_parent) => @mut (*self.current_frame().get()).clone(),
};
// If there are frames to revoke permission from, do so now.