Perf: Set fixed cell size for versions list

[KSSJW]

游戏版本下载列表性能优化

缘由

• 在版本下载界面切换到“全部”分类后，由于 ListView 中版本数量较多，首次滚动时会出现明显卡顿。

原因推测

• 每个 ListCell 需要动态计算 prefHeight

修改内容

• 为 ListView 启用 setFixedCellSize()

优化效果

• 首次滚动卡顿明显减少

对比

录屏好像有问题，切换选项时没有被采集（

修改前

0.mp4

修改后

1.mp4

[KSSJW]

/gemini review

[gemini-code-assist]

Code Review

This pull request introduces a fixed cell size of 65 to a JFXListView in VersionsPage.java to optimize rendering performance. The reviewer recommends increasing this value to 72 to prevent potential text clipping and layout issues on systems with larger fonts or different default font metrics.

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[gemini-code-assist]

Setting a hardcoded fixed cell size of 65 is very tight and risks clipping the cell content.

The cell layout (RemoteVersionListCell) has a top and bottom margin of 10 each (totaling 20 pixels of vertical margin). This leaves only 45 pixels of vertical space for the cell content. Within this space, the cell renders a TwoLineListItem which contains a title, potentially tags, and a subtitle.

If the user has a slightly larger system font, or on operating systems with different default font metrics (such as some Linux distributions or when using Chinese system fonts), the combined height of these two lines can easily exceed 45 pixels, leading to vertical clipping or text truncation.

Using a slightly larger and safer height (e.g., 72 pixels) provides enough headroom to prevent layout breakage while retaining the performance benefits of setFixedCellSize.

Suggested change

	list.setFixedCellSize(65);
	// Use 72 to provide headroom for two-line items with tags and prevent clipping
	list.setFixedCellSize(72);

[Glavo]

/gemini reivew

[gemini-code-assist]

Hello! It looks like you're trying to trigger a code review. Please use the command /gemini review to initiate the process. I see you've already made some good progress on optimizing the ListView performance by setting a fixed cell size. I'll be happy to take a look at the implementation once you run the command!