Qt QML/C++ Mac OS X 上的半透明窗口存在故障和性能问题
我开发了一个 Qt/QML 应用程序，我在半透明的无框架 QMainWindow 中使用半透明的 QDeclarativeView 显示该应用程序（请参阅 此）。该应用程序相当复杂，内部有一些 ListView 以及一些轮询远程服务器以获取数据并提供视图的线程。该程序在Windows 7上完美无缺地全速运行，没有任何故障。但是当我在Snow Leopard上编译并运行它时，我遇到了以下问题；
- GUI 渲染通常很慢
- 当我用鼠标滚轮滚动
ListView时，滚轮操作会影响底层窗口，并且我的 GUI 会闪烁，就好像它无法足够快地渲染一样。通常，当我在 GUI 上单击某些内容时，鼠标单击只是穿过我的窗口到达底层窗口并将其带到前面。 - 鼠标操作感觉很别扭。有明显的延迟。
这些问题在附加或不附加 gdb 的发布和调试版本中都存在。
这些问题听起来与我有关，但我很困惑。为什么在 Win7 上运行完美的应用程序在 Snow Leopard 上却表现不佳？我是否缺少某些特定配置？
I've developed a Qt/QML application which I display with a translucent QDeclarativeView in a translucent frameless QMainWindow (see this). The application is fairly complex with a a few ListViews inside and some threads that poll a remote server for data and feed the views. The program runs flawlessly and at full speed without glitches on Windows 7. But when I compile and run it on Snow Leopard I've got the following problems;
- GUI rendering is slow in general
- When I scroll the
ListViewwith the mouse wheel, the wheel actions affect the underlying window and my GUI flickers as if it can't render fast enough. Also often when I click something on my GUI, the mouse click just passes through my window onto the underlying window and brings it in front. - Mouse actions feel awkward. There is a significant delay.
These problems are present on both the Release and Debug builds with/without gdb attached.
The problems sound related to me but I'm confused. Why would an application running perfectly on Win7 perform badly on Snow Leopard ? Am I missing some specific configuration ?
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