feat: Add anti aliasing to the drawing of preview window

[mhduiy]

as title

pms: BUG-285265

Summary by Sourcery

Enhancements:

• Improve visual quality of preview window rendering by adding anti-aliasing

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adds anti-aliasing to the drawing of the preview window in x11preview.cpp by setting the Antialiasing render hint on the QPainter instance.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added anti-aliasing to the preview window drawing.	Enabled anti-aliasing for the QPainter instance used to draw the preview window.	panels/dock/taskmanager/x11preview.cpp

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[sourcery-ai]

Hey @mhduiy - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider if it's better to enable antialiasing in the constructor rather than in the paint method.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[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
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[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在新增的代码行中，painter->setRenderHint(QPainter::Antialiasing); 可能会导致性能问题，如果该函数被频繁调用，建议评估是否有必要在每次绘制时都启用抗锯齿。
• 检查是否有必要在每次绘制时都保存和恢复 painter 的状态，这可能会影响性能。

是否建议立即修改:

• 是，建议进行性能评估，并考虑是否有更优的解决方案来处理抗锯齿和 painter 状态的保存与恢复。

[mhduiy]

/forcemerge

[deepin-bot]

This pr force merged! (status: blocked)