From c3e0593137128080c4f740fb04843c2c06ba377b Mon Sep 17 00:00:00 2001
From: Pierre-Antoine Rouby <pierre-antoine.rouby@inrae.fr>
Date: Wed, 29 Mar 2023 13:47:48 +0200
Subject: [PATCH] network: Move on graph with mouse.
---
src/view/network/GraphWidget.py | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/src/view/network/GraphWidget.py b/src/view/network/GraphWidget.py
index 4496a291..3288e8f9 100644
--- a/src/view/network/GraphWidget.py
+++ b/src/view/network/GraphWidget.py
@@ -256,6 +256,9 @@ class GraphWidget(QGraphicsView):
self.edge_items = []
self.texts = {}
+ self.m_origin_x = 0.0
+ self.m_origin_y = 0.0
+
scene = QGraphicsScene(self)
scene.setItemIndexMethod(QGraphicsScene.NoIndex)
scene.setSceneRect(0, 0, 2000, 2000)
@@ -673,7 +676,20 @@ class GraphWidget(QGraphicsView):
self.tmp_line.dest = pos
self.tmp_line.update()
- # If state is "move" propagate event
+ # If state is "move"
if self._state == "move":
+ # Move on scene
+ if (not self.selected_item() and
+ event.buttons() & Qt.LeftButton):
+ old_p = self.mapToScene(self.m_origin_x, self.m_origin_y)
+ new_p = self.mapToScene(event.pos())
+ translation = new_p - old_p
+
+ self.translate(translation.x(), translation.y())
+
+ self.m_origin_x = event.x()
+ self.m_origin_y = event.y()
+
+ # Propagate event
self.update()
super(GraphWidget, self).mouseMoveEvent(event)
--
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