[Development] How to speed up QML for KDE5 without QML compiler
xiang.zhai at i-soft.com.cn
Wed Sep 16 06:03:38 CEST 2015
Hi great Qt and KDE developers,
I like QML, it is high speed development language, easy to create candy
UI and not difficult to debug. KDE4 began to use it in some projects,
for example, KScreen`s kcm module, it used QML to take place of
traditional QWidget. and KDE5, it is full of QML, for example, kwin`s
tabbox, plasma-desktop and plasma-workspace`s applet, sddm, etc.
For a new PC, there is no sharp difference between QML and QWidget, but
in a very very old PC, how old? about 7 years ago, QML is very slow! and
it needs to close all effects for KDE5, even that when clicked, for
example, calendar applet, it hang about 3+ seconds to showPopup.
There is commercial QML compiler, a very small example tried to use it
But is it suitable for huge projects just like KDE5 if bought a
commercial license? because not all KF5 components follow the Qt Quick
Compiler`s resource.qrc way, so is it able to compile? for example,
kickoff applet (the start menu of KDE5).
Leslie Zhai - a KDE developer
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