QTreeWidget 双击展开动画 [英] QTreeWidget expand animation on double click

问题描述

我创建了一个 QTreeWidget 并将动画设置为 true (setAnimated(true)).当我单击项目左侧的标记(三角形)时，它会平滑扩展，但是当我双击该项目时，它会扩展得太快(几乎就像没有设置动画"标志一样).我也想双击流畅的动画.我该如何解决这个问题?

I have created a QTreeWidget and set animation to true (setAnimated(true)). When I'm clicking on a mark (triangle) at the left of item it expands smoothly, but when I'm double clicking on the item it expands too fast (almost like there is no "animated" flag set). I want smooth animation on double click too. How can I solve this problem?

QTreeView 在标记单击时调用 QTreeViewPrivate::expandOrCollapseItemAtPos 并在双击时调用 QTreeViewPrivate::expand，所以我无法访问这些方法.

QTreeView calls QTreeViewPrivate::expandOrCollapseItemAtPos on mark click and QTreeViewPrivate::expand on double click, so I have no access to these methods.

我正在使用 PySide 创建 Qt 应用程序(但我尝试过 C++ 并且问题是相同的).

I'm using PySide for creating Qt application (but I've tried C++ and the problem is the same).

推荐答案

您需要覆盖点击行为.检查事件是否是双击，然后您可以将事件重定向到适当的调用.您应该检查状态是否已经被点击，以防止可能发生的第二个动画.

You need to override the click behaviour. Check the event if it's a double click or not and then you can redirect the event to the appropriate call. You should check the state if it's already clicked or not to prevent a second animation which might happen.

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