[add-uos]

fix: add null check for PageSingleInfo cast in RichTextDelegate

1. RichTextDelegate::paint dereferences dynamic_cast result without
   null check when parent is not PageSingleInfo
2. Add null pointer check before calling setRowHeight to prevent crash
3. No behavior change when parent is PageSingleInfo, only skips
   setRowHeight when parent is other type like PageTableWidget

Influence:

1. Test RichTextDelegate with PageSingleInfo parent and multi-line text
2. Test RichTextDelegate with PageTableWidget parent and multi-line text
3. Verify no crash and text rendering is correct in both cases

fix: RichTextDelegate::paint 增加空指针检查防止崩溃

1. RichTextDelegate::paint 在 parent 非 PageSingleInfo 时
   dynamic_cast 返回空指针后直接解引用导致崩溃
2. 增加 dynamic_cast 结果空指针检查后再调用 setRowHeight
3. parent 为 PageSingleInfo 时行为不变，为其他类型时跳过
   setRowHeight 调用不影响文本绘制

Influence:

1. 测试 parent 为 PageSingleInfo 时多行文本绘制正常
2. 测试 parent 为 PageTableWidget 时多行文本不崩溃
3. 验证两种场景下文本渲染结果正确

Summary by Sourcery

Bug Fixes:

• Prevent RichTextDelegate from crashing when its parent is not a PageSingleInfo by checking the cast result before updating row height.

[sourcery-ai]

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

RichTextDelegate::paint now safely handles non-PageSingleInfo parents by conditionally updating row height while preserving existing rendering and PageSingleInfo behavior.

Sequence diagram for safe RichTextDelegate painting

sequenceDiagram
    participant View as View
    participant Delegate as RichTextDelegate
    participant Parent as ParentWidget
    participant PageInfo as PageSingleInfo
    participant Painter as QPainter

    View->>Delegate: paint(painter, option, index)
    Delegate->>Parent: dynamic_cast<PageSingleInfo*>()
    alt parent is PageSingleInfo
        Parent-->>Delegate: PageSingleInfo*
        Delegate->>PageInfo: setRowHeight(index.row(), height + 6)
    else parent is another widget
        Parent-->>Delegate: nullptr
    end
    Delegate->>Painter: draw text document

Loading

File-Level Changes

Change	Details	Files
Guard the PageSingleInfo downcast before updating row height, preventing crashes for delegates attached to other parent widget types.	Store the dynamic_cast result in a PageSingleInfo pointer. Call setRowHeight only when the cast succeeds. Leave text document painting unchanged for all parent types.	deepin-devicemanager/src/Widget/RichTextDelegate.cpp

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[deepin-ci-robot]

deepin pr auto review

🤖 AI 代码审查报告

总体评分： 100 分 (通过阈值: 70分)

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📊 总体评价

项目	结果
审查结论	代码审查通过
评分详情	本次提交修复了 RichTextDelegate::paint 函数中 dynamic_cast 转换后未做空指针检查导致的潜在崩溃问题。 通过引入局部变量 pageInfo 并添加 null 检查，在 dynamic_cast 返回 nullptr 时跳过 setRowHeight 调用， 有效提升了代码健壮性。变更范围小、目标明确，四维度均无问题。同时更新了 SPDX 版权年份，合规合理。

---

🔍 详细分析

1. 语法逻辑 ✅

评价： 语法正确，逻辑清晰 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

---

2. 代码质量 ✅

评价： 代码结构清晰，注释完整 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

---

3. 代码性能 ✅

评价： 性能良好，资源使用合理 ✅ 通过

潜在问题：
✅ 未发现明显问题

建议： []

---

4. 代码安全 🔒

评价： 存在0个安全漏洞 ✅ 通过

🔐 发现 0 个安全漏洞

安全漏洞详情：
✅ 未发现安全漏洞

建议： []

---

💡 改进建议代码示例

// 当前代码已是最佳实践，无需额外修改： PageSingleInfo *pageInfo = dynamic_cast<PageSingleInfo *>(this->parent()); if (pageInfo) {
    pageInfo->setRowHeight(index.row(), textDoc.size().toSize().height() + 6);
}

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本报告由 AI 代码审查工具自动生成

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: add-uos, lzwind

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• debian/deepin/OWNERS

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[add-uos]

/forcemerge

[deepin-bot]

This pr force merged! (status: unstable)