add svg file

1 files changed, 23 insertions, 0 deletions

diff --git a/canvas.py b/canvas.py
new file mode 100644
index 0000000..36652a9
--- /dev/null
+++ b/canvas.py
@@ -0,0 +1,23 @@
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QGraphicsScene, QMenu, QGraphicsView
+
+from connectingline import ConnectingLine
+from circle import NodeItem
+
+
+class Canvas(QGraphicsScene):
+    MoveItem, InsertLine = 1, 2
+    myMode = MoveItem
+
+    def __init__(self, parent=None):
+        QGraphicsScene.__init__(self, parent)
+        self.lines = []
+        self.circles = []
+
+    def setMode(self, mode):
+        """This function is used to toggle between move and add line
+        :return:
+        """
+        Canvas.myMode = mode
+
+