From 73fd35edb8bf0c55df227d7d09ecf1751c54c4c9 Mon Sep 17 00:00:00 2001
From: risingLee <871066422@qq.com>
Date: Wed, 25 Feb 2026 15:46:39 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AE=AD=E5=A4=B4=E6=94=B9=E6=88=90=E5=9C=86?=
 =?UTF-8?q?=E5=BD=A2?=
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---
 main.py | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/main.py b/main.py
index 237d930..51345ff 100644
--- a/main.py
+++ b/main.py
@@ -682,7 +682,7 @@ class ArrowItem(DashboardItem):
         )
 
     def paint(self, painter, option, widget=None):
-        """编辑模式：画虚线边框 + 箭头；展示模式：只画箭头，不画边框。"""
+        """编辑模式：画虚线边框 + 两端圆点线段；展示模式：只画线段和圆点，不画边框。"""
         r = self.rect()
         if r.width() <= 1 or r.height() <= 1:
             return
@@ -697,7 +697,7 @@ class ArrowItem(DashboardItem):
             painter.setBrush(Qt.BrushStyle.NoBrush)
             painter.drawRect(r)
 
-        # 画箭头（在 rect 内按角度绘制；不使用 item rotation，避免影响边界/磁吸/约束）
+        # 画线段和两端圆点（在 rect 内按角度绘制；不使用 item rotation，避免影响边界/磁吸/约束）
         arrow_color = QColor(self._color)
         pen = QPen(arrow_color, self._width)
         pen.setCapStyle(Qt.PenCapStyle.RoundCap)
@@ -719,26 +719,15 @@ class ArrowItem(DashboardItem):
         t = max(5.0, min(t_max_x, t_max_y))
         start = QPointF(cx - vx * t, cy - vy * t)
         end = QPointF(cx + vx * t, cy + vy * t)
+        
+        # 绘制连接线
         painter.drawLine(start, end)
 
-        # 箭头三角形
-        dx = end.x() - start.x()
-        dy = end.y() - start.y()
-        length = math.hypot(dx, dy) or 1.0
-        ux, uy = dx / length, dy / length
-
-        # 箭头头部大小随线宽缩放（并限制范围）
+        # 绘制两端圆点（代替箭头）
         w = float(max(1, self._width))
-        arrow_len = max(8.0, min(28.0, 6.0 + w * 3.0))
-        half_width = max(4.0, min(14.0, 3.5 + w * 1.6))
-        back = QPointF(end.x() - ux * arrow_len, end.y() - uy * arrow_len)
-        # 垂直方向
-        px, py = -uy, ux
-        p1 = QPointF(back.x() + px * half_width, back.y() + py * half_width)
-        p2 = QPointF(back.x() - px * half_width, back.y() - py * half_width)
-
-        # PyQt6 支持直接传入 QPointF 列表，无需 QPolygonF
-        painter.drawPolygon([end, p1, p2])
+        dot_radius = max(4.0, min(12.0, 3.0 + w * 1.2))  # 圆点半径随线宽缩放
+        painter.drawEllipse(start, dot_radius, dot_radius)
+        painter.drawEllipse(end, dot_radius, dot_radius)
 
 
 class WebItem(DashboardItem):