fix: improve dialog sizing and remove unused event filter

1. Enhanced dialog width calculation to respect maximum width constraint
2. Added dynamic height calculation based on layout's total height for
the given width
3. Removed unused event filter for title and message labels that handled
font changes
4. The event filter was unnecessary as Qt's layout system already
handles text wrapping properly

Influence:
1. Test dialog resizing with various content lengths
2. Verify dialog respects maximum width settings
3. Check that text wrapping works correctly in title and message labels
4. Test dialog appearance with different font sizes
5. Ensure dialog maintains minimum size requirements

fix: 改进对话框尺寸计算并移除未使用的事件过滤器

1. 增强对话框宽度计算以遵循最大宽度约束
2. 添加基于布局总高度的动态高度计算
3. 移除用于标题和消息标签字体变化的未使用事件过滤器
4. 该事件过滤器不再必要，因为Qt的布局系统已能正确处理文本换行

Influence:
1. 测试不同内容长度时的对话框调整大小
2. 验证对话框遵循最大宽度设置
3. 检查标题和消息标签中的文本换行是否正确工作
4. 测试不同字体大小下的对话框外观
5. 确保对话框保持最小尺寸要求

PMS: BUG-331061

Author: 18202781743

src/widgets/ddialog.cpp

@@ -218,7 +218,10 @@ void DDialogPrivate::updateSize()
     if (!q->testAttribute(Qt::WA_Resized)) {
         QSize size = q->sizeHint();
 
-        size.setWidth(qMax(size.width(), DIALOG::DEFAULT_WIDTH));
+        size.setWidth(qMin(q->maximumWidth(), qMax(size.width(), DIALOG::DEFAULT_WIDTH)));
+        if (auto layout = q->layout()) {
+            size.setHeight(layout->totalHeightForWidth(size.width()));
+        }
         size.setHeight(qMax(size.height(), DIALOG::DEFAULT_HEIGHT));
 
         q->resize(size);
@@ -1191,22 +1194,6 @@ void DDialog::keyPressEvent(QKeyEvent *event)
 
 bool DDialog::eventFilter(QObject *watched, QEvent *event)
 {
-    Q_D(DDialog);
-
-    if (watched == d->messageLabel || watched == d->titleLabel) {
-        if (event->type() == QEvent::FontChange) {
-            QLabel *label = qobject_cast<QLabel *>(watched);
-
-            if (label && !label->text().isEmpty() && label->wordWrap()) {
-                QSize sz = style()->itemTextRect(label->fontMetrics(), label->rect(), Qt::TextWordWrap, false, label->text()).size();
-
-                label->setMinimumHeight(qMax(sz.height(), label->sizeHint().height()));
-            }
-        }
-
-        return false;
-    }
-
     return DAbstractDialog::eventFilter(watched, event);
 }