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m_centerWidget added a maximum height constraint based on the scroll area height to improve layout management.

Log: as title
Pms: BUG-313337

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m_centerWidget  added a maximum height constraint based on the scroll area height to improve layout management.

Log: as title
Pms: BUG-313337
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[APPROVALNOTIFIER] This PR is NOT APPROVED

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deepin-ci-robot added a commit to linuxdeepin/dde-session-shell-snipe that referenced this pull request Aug 18, 2025
Synchronize source files from linuxdeepin/dde-session-shell.

Source-pull-request: linuxdeepin/dde-session-shell#31
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deepin pr auto review

我来对这段代码进行审查,并提供改进意见:

语法逻辑

  1. 代码语法基本正确,但存在一些逻辑问题:
    • updateLayout函数中,当m_flowLayout->count() <= count时,设置了m_centerWidget的最大高度,但没有设置最小高度,这可能导致布局不一致。
    • 在初始化UI时,m_centerWidget的父对象设置正确,但后续的高度设置逻辑可能不够完善。

代码质量

  1. 命名规范:

    • 变量名如countWidthuserWidgetHeight等命名清晰,符合驼峰命名规范。
  2. 代码结构:

    • initUI函数中的对象初始化顺序合理,但可以考虑将UI元素的创建和配置分离,提高代码可读性。
  3. 注释和文档:

    • 缺少对关键逻辑的注释,建议添加必要的注释说明代码的用途和逻辑。

代码性能

  1. updateLayout函数中:

    • 每次调用都会重新计算高度,可以考虑缓存一些计算结果,避免重复计算。
    • setFixedSizesetMaximumHeight的调用可能会触发多次重绘,可以考虑合并设置。
  2. 内存管理:

    • 对象创建和销毁的时机需要关注,避免内存泄漏。

代码安全

  1. 空指针检查:

    • 代码中没有对m_centerWidgetm_flowLayout等指针进行空值检查,建议添加必要的空值检查,防止程序崩溃。
  2. 资源释放:

    • 需要确保在析构函数中正确释放所有分配的资源。

改进建议

  1. 代码逻辑改进:
void UserFrameList::updateLayout(int width)
{
    // ... 其他代码 ...
    
    if (countWidth > 0) {
        int scrollAreaHeight;
        if (m_flowLayout->count() <= count) {
            scrollAreaHeight = userWidgetHeight + 20;
        } else {
            scrollAreaHeight = (userWidgetHeight + UserFrameSpacing) * 2;
        }
        
        m_scrollArea->setFixedSize(countWidth, scrollAreaHeight);
        m_centerWidget->setMinimumHeight(0);  // 确保没有最小高度限制
        m_centerWidget->setMaximumHeight(scrollAreaHeight);
    }
}
  1. 添加空值检查:
void UserFrameList::initUI()
{
    if (!m_centerWidget) {
        m_centerWidget = new QWidget(this);
    }
    m_centerWidget->setAccessibleName("UserFrameListCenterWidget");
    
    if (!m_flowLayout) {
        m_flowLayout = new DFlowLayout(m_centerWidget);
    }
    // ... 其他代码 ...
}
  1. 性能优化:

    • 考虑使用QSize代替多次调用setFixedSizesetMaximumHeight,减少重绘次数。
    • 可以将一些常用的计算结果缓存为成员变量。
  2. 添加必要的注释:

void UserFrameList::updateLayout(int width)
{
    // 根据宽度和项目数量更新滚动区域的大小
    // countWidth 是计算出的总宽度
    // count 是每行显示的项目数量
    // userWidgetHeight 是用户控件的高度
    // UserFrameSpacing 是控件之间的间距
}
  1. 析构函数中确保资源释放:
UserFrameList::~UserFrameList()
{
    // 确保所有动态分配的对象被正确释放
    delete m_flowLayout;
    delete m_centerWidget;
    delete m_scrollArea;
}

这些改进建议可以提高代码的健壮性、可维护性和性能。

@yixinshark yixinshark merged commit 8765fb2 into linuxdeepin:master Aug 18, 2025
15 checks passed
yixinshark pushed a commit to linuxdeepin/dde-session-shell-snipe that referenced this pull request Aug 18, 2025
Synchronize source files from linuxdeepin/dde-session-shell.

Source-pull-request: linuxdeepin/dde-session-shell#31
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3 participants