fix: a display logic error in the secondary prompt.

[lichaofan2008]

There is a display logic error in the secondary prompt, and it should be consistent with the display logic of the primary prompt.
二级提示的显示逻辑错误，应该和一级提示的显示逻辑保持一致。

Summary by Sourcery

Bug Fixes:

• Fix incorrect display logic where the secondary camera error prompt was shown instead of hidden during video preview countdown.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Aligns the secondary camera error prompt visibility logic with the primary prompt when entering VIDEO preview state to fix an incorrect display condition.

Updated class diagram for videowidget countdown and camera error prompts

classDiagram
  class videowidget {
    +showCountDownLabel(state PREVIEW_ENUM_STATE) void
    -m_pCamErrItem CamErrItem
    -m_pCamErrItemSub CamErrItem
    -m_pSvgItem SvgItem
  }

  class PREVIEW_ENUM_STATE {
    <<enumeration>>
    PREVIEW_ENUM_STATE_IDLE
    PREVIEW_ENUM_STATE_VIDEO
    PREVIEW_ENUM_STATE_OTHER
  }

  videowidget --> PREVIEW_ENUM_STATE : uses
  videowidget --> CamErrItem : manages
  videowidget --> SvgItem : manages

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State diagram for VIDEO preview prompt visibility logic

stateDiagram-v2
  [*] --> PREVIEW_ENUM_STATE_IDLE

  PREVIEW_ENUM_STATE_IDLE --> PREVIEW_ENUM_STATE_VIDEO : showCountDownLabel(PREVIEW_ENUM_STATE_VIDEO)

  state PREVIEW_ENUM_STATE_VIDEO {
    [*] --> VIDEO_active
    VIDEO_active --> VIDEO_active : updatePromptVisibility
  }

  VIDEO_active : entry / hide m_pCamErrItem
  VIDEO_active : entry / hide m_pCamErrItemSub
  VIDEO_active : entry / hide m_pSvgItem

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File-Level Changes

Change	Details	Files
Correct secondary camera error prompt visibility when entering VIDEO preview state.	In the VIDEO preview branch of showCountDownLabel, change the secondary camera error item from being shown to being hidden so it matches the intended display logic of the primary prompt. Keep primary camera error item hidden and SVG item hidden as before, preserving existing behavior aside from the secondary prompt toggle.	src/src/videowidget.cpp

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[deepin-ci-robot]

deepin pr auto review

这段代码修改主要是针对 VIDEO 状态下 UI 元素显示逻辑的调整。以下是对该 git diff 的详细审查意见：

1. 代码逻辑审查

• 修改内容：将 m_pCamErrItemSub->show() 修改为 m_pCamErrItemSub->hide()。
• 分析：
  • 在 case VIDEO 分支中，逻辑表示当前处于视频预览或播放状态。
  • m_pCamErrItem 被隐藏（hide()），这通常意味着主错误提示被关闭。
  • 原代码中，m_pCamErrItemSub（可能是子错误提示或辅助信息）被显示（show()）。但在视频正常播放的状态下，显示“错误提示”通常是不合理的，这会导致 UI 上出现遮挡或误导信息。
  • 结论：修改为 hide() 是合理的，确保在进入视频播放状态时，清除所有与错误或状态异常相关的 UI 元素，保持界面整洁。

2. 代码质量与规范

• 命名规范：变量命名如 m_pCamErrItemSub 符合 Qt/C++ 的常见命名习惯（m_ 前缀表示成员变量，p 表示指针），可读性尚可。
• 代码风格：代码缩进和格式保持一致，符合 Qt 的代码风格。

3. 代码性能

• 影响：此修改仅涉及 UI 组件的显示/隐藏函数调用，不涉及复杂的计算或循环，对性能无显著影响。

4. 代码安全

• 空指针检查：
  • 代码中直接调用了 m_pCamErrItemSub->hide()。如果 m_pCamErrItemSub 指针未被初始化或已被置为 nullptr，直接调用会导致程序崩溃（Segmentation Fault）。
  • 建议：虽然 Qt 的 QObject 及其子类在析构时通常会自动将指向它的子对象指针置空（如果使用了 QPointer 或 QObject::deleteLater 等机制），但在直接操作成员指针前，增加判空逻辑是一个良好的防御性编程习惯。
  • 改进代码示例：

    if (m_pCamErrItemSub) {
        m_pCamErrItemSub->hide();
    }

5. 综合改进建议

建议对整个 case VIDEO 分支中的指针调用增加安全性检查，以防止潜在的空指针解引用风险。

改进后的代码片段建议：

case VIDEO:
    if (m_pCamErrItem) {
        m_pCamErrItem->hide();
    }
    if (m_pCamErrItemSub) {
        m_pCamErrItemSub->hide(); // 修改点：确保在视频状态下隐藏子错误项
    }
    if (m_pSvgItem) {
        m_pSvgItem->hide();
    }

    if (!get_capture_pause()) { ... }

总结：
该修改在逻辑上是正确的，修复了视频状态下错误提示未隐藏的 Bug。为了提高代码的健壮性，建议补充空指针检查。

[sourcery-ai]

Hey - I've left some high level feedback:

• Since the secondary prompt is now meant to mirror the primary prompt’s behavior, consider extracting their shared display logic into a helper method so they can’t silently drift apart again.
• It may be worth clarifying the naming of m_pCamErrItem and m_pCamErrItemSub or adding a brief inline comment near this branch to make it immediately obvious why the secondary error item is hidden in the VIDEO state while the primary is shown.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Since the secondary prompt is now meant to mirror the primary prompt’s behavior, consider extracting their shared display logic into a helper method so they can’t silently drift apart again.
- It may be worth clarifying the naming of `m_pCamErrItem` and `m_pCamErrItemSub` or adding a brief inline comment near this branch to make it immediately obvious why the secondary error item is hidden in the `VIDEO` state while the primary is shown.

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: lichaofan2008, max-lvs

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• debian/deepin/OWNERS

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[lichaofan2008]

/merge