fix: ensure consistent font rendering across components for better display on macOS

Author: lakernote

src/main/java/com/laker/postman/common/component/tab/ClosableTabComponent.java

@@ -51,8 +51,10 @@ public ClosableTabComponent(String title, RequestItemProtocolEnum protocol) {
         setToolTipText(title); // 设置完整标题为tooltip
         this.tabbedPane = SingletonFactory.getInstance(RequestEditPanel.class).getTabbedPane();
 
+        // 先创建正确的字体，确保字符宽度计算和显示一致
+        Font tabFont = FontsUtil.getDefaultFont(Font.PLAIN, 12);
         // 动态计算宽度，最大不超过MAX_TAB_WIDTH
-        FontMetrics fm = getFontMetrics(getFont());
+        FontMetrics fm = getFontMetrics(tabFont);
         // 计算关闭按钮占用的空间：按钮直径 + 间距 + 右边距 + 左侧图标空间
         int closeButtonSpace = CLOSE_DIAMETER + 4 + CLOSE_MARGIN; // 8px为文本与按钮之间的间距
         int iconSpace = 20; // 为协议图标预留空间
@@ -81,7 +83,7 @@ public boolean contains(int x, int y) { // 重写contains方法，避免遮挡
                 return false;
             }
         };
-        label.setFont(FontsUtil.getDefaultFont(Font.PLAIN, 12));
+        label.setFont(tabFont);
         if (protocol != null) {
             label.setIcon(protocol.getIcon());
         } else {

src/main/java/com/laker/postman/common/component/tree/RequestTreeCellRenderer.java

@@ -33,6 +33,8 @@ public Component getTreeCellRendererComponent(JTree tree, Object value, boolean
                 Object groupData = obj[1];
                 String groupName = groupData instanceof RequestGroup ? ((RequestGroup) groupData).getName() : String.valueOf(groupData);
                 setText(groupName);
+                // 显式设置字体，确保在 DMG 中正确显示
+                setFont(tree.getFont());
             } else if (RequestCollectionsLeftPanel.REQUEST.equals(obj[0])) {
                 HttpRequestItem item = (HttpRequestItem) obj[1];
                 applyRequestRendering(item);

src/main/java/com/laker/postman/panel/history/HistoryPanel.java

@@ -130,20 +130,27 @@ protected void initUI() {
      * 优化的列表单元格渲染器 - 极简版，最大化性能
      */
     private static class OptimizedHistoryListCellRenderer extends DefaultListCellRenderer {
-        private final Font boldFont;
-        private final Font plainFont;
+        private Font boldFont;
+        private Font plainFont;
         private final Color selectedBackground = new Color(180, 215, 255);
 
-        public OptimizedHistoryListCellRenderer() {
-            Font baseFont = FontsUtil.getDefaultFont(Font.PLAIN, 12);
-            boldFont = baseFont.deriveFont(Font.BOLD);
-            plainFont = baseFont.deriveFont(Font.PLAIN);
-        }
-
         @Override
         public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
             JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
 
+            // 从 JList 获取字体，确保与组件设置的字体一致
+            if (boldFont == null || plainFont == null) {
+                Font listFont = list.getFont();
+                if (listFont != null) {
+                    boldFont = listFont.deriveFont(Font.BOLD);
+                    plainFont = listFont.deriveFont(Font.PLAIN);
+                } else {
+                    Font baseFont = FontsUtil.getDefaultFont(Font.PLAIN, 12);
+                    boldFont = baseFont.deriveFont(Font.BOLD);
+                    plainFont = baseFont.deriveFont(Font.PLAIN);
+                }
+            }
+
             if (value instanceof String dateStr) {
                 label.setText(dateStr);
                 label.setFont(boldFont);