解决开启mask export插件后，repaint卡顿的问题。

Author: yatengLG

ISAT/widgets/canvas.py

@@ -1098,6 +1098,7 @@ def mousePressEvent(self, event: "QtWidgets.QGraphicsSceneMouseEvent"):
                     for point in points:
                         repaint_polygon.addPoint(point)
                     repaint_polygon.redraw()
+                    self.mainwindow.set_saved_state(False)
 
                     self.current_line.delete()  # 清除所有路径
                     self.removeItem(self.current_line)

ISAT/widgets/polygon.py

@@ -200,7 +200,7 @@ def movePoint(self, index: int, point: QtCore.QPointF):
         self.redraw()
         if self.scene().mainwindow.cfg["software"]["real_time_area"]:
             self.area = self.calculate_area()
-        if self.scene().mainwindow.load_finished and not self.is_drawing:
+        if self.scene().mainwindow.load_finished and not self.is_drawing and self.scene().mode != STATUSMode.REPAINT:
             self.scene().mainwindow.set_saved_state(False)
 
     def removePoint(self, index):