fix: fix example display issues

[18202781743]

Fixed multiple display issues in QML examples:

1. Removed backgroundVisible property from ItemDelegate in exhibition
   example as it's no longer needed
2. Changed Rectangle components to Item components in qml-inspect
   examples to avoid unnecessary visual elements
3. Removed border.color property from settings dialog example to clean
   up the appearance

These changes improve the visual consistency and correctness of the
example displays by using more appropriate QML components and removing
deprecated or unnecessary properties.

Log: Fixed visual display issues in QML examples

Influence:

1. Verify that the exhibition example navigation items display correctly
   without backgrounds
2. Check that all qml-inspect examples render properly as Item
   components
3. Confirm that the settings dialog example appears without blue borders
4. Test navigation functionality in exhibition example remains working
5. Validate that all examples maintain their intended functionality
   after component changes

fix: 修复示例显示问题

修复了 QML 示例中的多个显示问题：

1. 从展览示例的 ItemDelegate 中移除 backgroundVisible 属性，该属性不再
   需要
2. 将 qml-inspect 示例中的 Rectangle 组件改为 Item 组件，避免不必要的视
   觉元素
3. 移除设置对话框示例中的 border.color 属性以清理外观

这些更改通过使用更合适的 QML 组件和移除已弃用或不必要的属性，提高了示例
显示的视觉一致性和正确性。

Log: 修复 QML 示例中的视觉显示问题

Influence:

1. 验证展览示例中的导航项在没有背景的情况下正确显示
2. 检查所有 qml-inspect 示例作为 Item 组件是否正确渲染
3. 确认设置对话框示例显示时没有蓝色边框
4. 测试展览示例中的导航功能仍然正常工作
5. 验证所有示例在组件更改后保持其预期功能

Summary by Sourcery

Fix visual inconsistencies in QML examples by removing unnecessary backgrounds and using simpler components

Bug Fixes:

• Remove backgroundVisible property from ItemDelegate in exhibition example
• Replace root Rectangle elements with Item in qml-inspect examples to eliminate unwanted visual frames
• Remove border.color property from settings dialog example to clean up its appearance

[deepin-ci-robot]

deepin pr auto review

根据提供的git diff，我将从代码质量、性能和安全性几个方面进行分析：

1. main.qml 中的修改：

-                backgroundVisible: false

这个移除操作是合理的，因为：

• 代码质量：移除了不必要的属性设置，使代码更简洁
• 性能：减少了不必要的渲染计算
• 建议：如果确实需要隐藏背景，可以考虑使用更明确的样式设置，而不是完全移除属性

2. Example_1.qml、Example_2.qml、Example_colorselector.qml 和 Example_settingsdialog.qml 中的修改：

-Rectangle {
+Item {

这个修改是一个重要的优化：

代码质量改进：

• 使用更通用的基类 Item 替代 Rectangle，因为不需要矩形特性
• 减少了不必要的继承和属性，使代码更简洁
• 符合 Qt 的最佳实践 - 只使用需要的基类

性能提升：

• Rectangle 比 Item 包含更多属性（如边框、颜色等），移除 Rectangle 可以减少内存占用
• 减少了不必要的渲染计算，因为不需要绘制矩形背景

安全性考虑：

• 使用更基础的基类可以减少意外属性继承带来的潜在问题
• 避免了不必要的属性暴露

建议：

1. 如果这些组件确实需要背景色或边框，应该明确设置这些属性，而不是依赖 Rectangle 的默认行为
2. 考虑为这些组件添加明确的文档注释，说明它们的设计用途
3. 在 Example_2.qml 中，可以考虑将内联的 base64 图片数据移到单独的资源文件中，提高代码可读性

总体来说，这些修改都是积极的优化，提高了代码质量、性能和安全性。特别是使用 Item 替代 Rectangle 的做法，符合 Qt 的最佳实践。

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Refactored QML examples to enhance visual consistency by replacing unnecessary Rectangle roots with Item components, removing extraneous backgroundVisible flags and border color settings.

File-Level Changes

Change	Details	Files
Replaced Rectangle with Item in qml-inspect examples	Change root Rectangle to Item in Example_1.qml Change root Rectangle to Item in Example_2.qml Change root Rectangle to Item in Example_colorselector.qml Change root Rectangle to Item in Example_settingsdialog.qml	examples/qml-inspect/Example_1.qml examples/qml-inspect/Example_2.qml examples/qml-inspect/Example_colorselector.qml examples/qml-inspect/Example_settingsdialog.qml
Removed border.color property from settings dialog example	Eliminated border.color declaration	examples/qml-inspect/Example_settingsdialog.qml
Removed backgroundVisible property from ItemDelegate in exhibition example	Deleted backgroundVisible assignment from ItemDelegate	examples/exhibition/main.qml

---

Tips and commands

Interacting with Sourcery

• Trigger a new review: Comment @sourcery-ai review on the pull request.
• Continue discussions: Reply directly to Sourcery's review comments.
• Generate a GitHub issue from a review comment: Ask Sourcery to create an
  issue from a review comment by replying to it. You can also reply to a
  review comment with @sourcery-ai issue to create an issue from it.
• Generate a pull request title: Write @sourcery-ai anywhere in the pull
  request title to generate a title at any time. You can also comment
  @sourcery-ai title on the pull request to (re-)generate the title at any time.
• Generate a pull request summary: Write @sourcery-ai summary anywhere in
  the pull request body to generate a PR summary at any time exactly where you
  want it. You can also comment @sourcery-ai summary on the pull request to
  (re-)generate the summary at any time.
• Generate reviewer's guide: Comment @sourcery-ai guide on the pull
  request to (re-)generate the reviewer's guide at any time.
• Resolve all Sourcery comments: Comment @sourcery-ai resolve on the
  pull request to resolve all Sourcery comments. Useful if you've already
  addressed all the comments and don't want to see them anymore.
• Dismiss all Sourcery reviews: Comment @sourcery-ai dismiss on the pull
  request to dismiss all existing Sourcery reviews. Especially useful if you
  want to start fresh with a new review - don't forget to comment
  @sourcery-ai review to trigger a new review!

Customizing Your Experience

Access your dashboard to:

• Enable or disable review features such as the Sourcery-generated pull request
  summary, the reviewer's guide, and others.
• Change the review language.
• Add, remove or edit custom review instructions.
• Adjust other review settings.

Getting Help

• Contact our support team for questions or feedback.
• Visit our documentation for detailed guides and information.
• Keep in touch with the Sourcery team by following us on X/Twitter, LinkedIn or GitHub.

[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

---

Sourcery is free for open source - if you like our reviews please consider sharing them ✨

• X
• Mastodon
• LinkedIn
• Facebook

_{Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.}

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 18202781743, mhduiy

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment