fix: reduce underline distance #247

src/editor/core/draw/Draw.ts

@@ -1443,7 +1443,8 @@ export class Draw {
     const { rowList, pageNo, elementList, positionList, startIndex, zone } =
       payload
     const isPrintMode = this.mode === EditorMode.PRINT
-    const { scale, tdPadding } = this.options
+    const { scale, tdPadding, defaultBasicRowMarginHeight, defaultRowMargin } =
+      this.options
     const { isCrossRowCol, tableId } = this.range.getRange()
     let index = startIndex
     for (let i = 0; i < rowList.length; i++) {
@@ -1540,10 +1541,14 @@ export class Draw {
         }
         // 下划线记录
         if (element.underline) {
+          const rowMargin =
+            defaultBasicRowMarginHeight *
+            (element.rowMargin || defaultRowMargin) *
+            scale
           this.underline.recordFillInfo(
             ctx,
             x,
-            y + curRow.height,
+            y + curRow.height - rowMargin,
             metrics.width,
             0,
             element.color

src/editor/core/draw/richtext/Underline.ts

@@ -16,7 +16,7 @@ export class Underline extends AbstractRichText {
     const { x, y, width } = this.fillRect
     ctx.save()
     ctx.strokeStyle = this.fillColor || underlineColor
-    const adjustY = y + 0.5 // 从1处渲染，避免线宽度等于3
+    const adjustY = Math.floor(y + 2 * ctx.lineWidth) + 0.5 // +0.5从1处渲染，避免线宽度等于3
     ctx.beginPath()
     ctx.moveTo(x, adjustY)
     ctx.lineTo(x + width, adjustY)