Review Request 117813: Make the system tray faster

[Commit Hook]

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This review has been submitted with commit 45eaffacab8f4badf27d82ec8134d51f748f375f by David Edmundson to branch master.

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On May 2, 2014, 4:10 p.m., David Edmundson wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/117813/
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> (Updated May 2, 2014, 4:10 p.m.)
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> Review request for Plasma.
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> Repository: plasma-workspace
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> Description
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> Port QQmlListProperty to QAbstractListModel.
> QQmlListProperty only has a signal that the list has changed.This means when used in a ListView every delegate has to be redone whenever a single item is inserted or removed rather than just moved.
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> Given TaskDelegate is not the simplest of things this has a performance gain, most noticeably on startup. Also rather than sorting all items after an insert items are inserted in the right place using qLowerBound. Now we have the correct signals we can remove the compression, they won't add anything. 
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> Other commits:
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> Avoid constructing a QString for comparing, use QLatin1String for == operators.
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> Remove useless include
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> Do not construct a map inside a lessThan function
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> lessThan functions have to be fast.
> Also Map -> Hash as we're not using order here.
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> Diffs
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>   applets/systemtray/package/contents/ui/CompactRepresentation.qml 01308e7 
>   applets/systemtray/package/contents/ui/ExpandedRepresentation.qml 646b908 
>   applets/systemtray/package/contents/ui/PlasmoidItem.qml 0eb1687 
>   applets/systemtray/package/contents/ui/StatusNotifierItem.qml fc889a8 
>   applets/systemtray/package/contents/ui/TaskDelegate.qml 913d8f1 
>   applets/systemtray/package/contents/ui/TaskListDelegate.qml 5501e02 
>   applets/systemtray/package/contents/ui/main.qml d1a6851 
>   applets/systemtray/plugin/CMakeLists.txt f6e23b4 
>   applets/systemtray/plugin/host.h 02c5bbe 
>   applets/systemtray/plugin/host.cpp eafd0b6 
>   applets/systemtray/plugin/task.h 68dcd12 
>   applets/systemtray/plugin/task.cpp 1f8e3ca 
>   applets/systemtray/plugin/tasklistmodel.h PRE-CREATION 
>   applets/systemtray/plugin/tasklistmodel.cpp PRE-CREATION 
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> Diff: https://git.reviewboard.kde.org/r/117813/diff/
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> Testing
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> Seems to work :)
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> see branch davidedmundson/faster_systray to test
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> Thanks,
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> David Edmundson
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