...

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

@@ -34,10 +34,10 @@ class Main(QMainWindow):
 
     def paintEvent(self, event):
         q = QPainter(self)
-#         q.begin(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.end()
 
 
 App = QApplication(sys.argv)

src/kr/co/swh/lecture/python/pyqt5/drawing/lineDraw2.py

@@ -0,0 +1,49 @@
+from PyQt5.QtWidgets import QMainWindow, QApplication, QDesktopWidget
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import *
+from PyQt5.QtGui import QPainter, QBrush, QPen
+import sys
+
+class Main(QMainWindow):
+    
+    def __init__(self):
+        super().__init__()
+
+        self.setMouseTracking(True)
+
+        self.setWindowTitle('mouse')
+        self.resize(900, 600)
+        self.xylist=[]
+        self.clicked = False
+        self.show()
+
+    def mousePressEvent(self, e):  # e ; QMouseEvent
+        print('BUTTON Press')
+        if e.buttons() & Qt.LeftButton:
+            self.xylist.append(list())
+            self.clicked = True
+
+    def mouseReleaseEvent(self, e):  # e ; QMouseEvent
+        print('BUTTON RELEASE')
+        self.clicked = False
+#         self.mouseButtonKind(e.buttons())
+        
+    def mouseMoveEvent(self, e):  # e ; QMouseEvent
+        print('(%d %d)' % (e.x(), e.y()))
+        if self.clicked:
+            self.xylist[-1].append((e.x(), e.y()))
+            self.repaint()  # self.update()와 결과 동일
+
+    def paintEvent(self, event):
+#                 q.begin(self)
+        if len(self.xylist)> 0:
+            q = QPainter(self)
+            for b in self.xylist:
+                for c in range(len(b)-1):
+                    q.drawLine(b[c][0], b[c][1], b[c+1][0], b[c+1][1])
+
+
+#                 q.end()
+App = QApplication(sys.argv)
+window = Main()
+sys.exit(App.exec())