...

src/kr/co/swh/lecture/python/pyqt5/drawing/lineDraw.py

@@ -30,16 +30,14 @@ class Main(QMainWindow):
 #         print('(%d %d)' % (e.x(), e.y()))
         if self.clicked:
             self.xylist.append((e.x(), e.y()))
-            self.repaint()
+            self.repaint()  # self.update()와 결과 동일
 
     def paintEvent(self, event):
-        if not (self.x == -1 or self.y == -1):
-            if len(self.xylist) > 1:
-                q = QPainter(self)
-                q.begin(self)
-                for b in range(len(self.xylist)-1):
-                    q.drawLine(self.xylist[b][0], self.xylist[b][1], self.xylist[b+1][0], self.xylist[b+1][1])
-                q.end()
+        q = QPainter(self)
+#         q.begin(self)
+        for b in range(len(self.xylist)-1):
+            q.drawLine(self.xylist[b][0], self.xylist[b][1], self.xylist[b+1][0], self.xylist[b+1][1])
+#         q.end()
 
 
 App = QApplication(sys.argv)