From f86339040967237a3d8da8666b1ece61ee5bdd26 Mon Sep 17 00:00:00 2001
From: KIU Shueng Chuan <nixchuan@gmail.com>
Date: Sun, 10 Jan 2021 12:03:47 +0800
Subject: [PATCH] change MidButton to MiddleButton

the former is no longer present in Qt 6 as an alias
---
 pyqtgraph/GraphicsScene/GraphicsScene.py   | 2 +-
 pyqtgraph/GraphicsScene/mouseEvents.py     | 2 +-
 pyqtgraph/graphicsItems/ROI.py             | 6 +++---
 pyqtgraph/graphicsItems/ViewBox/ViewBox.py | 2 +-
 pyqtgraph/opengl/GLViewWidget.py           | 2 +-
 pyqtgraph/widgets/GraphicsView.py          | 2 +-
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/pyqtgraph/GraphicsScene/GraphicsScene.py b/pyqtgraph/GraphicsScene/GraphicsScene.py
index 1eb5ae9f..2b46771c 100644
--- a/pyqtgraph/GraphicsScene/GraphicsScene.py
+++ b/pyqtgraph/GraphicsScene/GraphicsScene.py
@@ -207,7 +207,7 @@ class GraphicsScene(QtGui.QGraphicsScene):
                     now = ptime.time()
                     init = False
                     ## keep track of which buttons are involved in dragging
-                    for btn in [QtCore.Qt.LeftButton, QtCore.Qt.MidButton, QtCore.Qt.RightButton]:
+                    for btn in [QtCore.Qt.LeftButton, QtCore.Qt.MiddleButton, QtCore.Qt.RightButton]:
                         if int(ev.buttons() & btn) == 0:
                             continue
                         if int(btn) not in self.dragButtons:  ## see if we've dragged far enough yet
diff --git a/pyqtgraph/GraphicsScene/mouseEvents.py b/pyqtgraph/GraphicsScene/mouseEvents.py
index fb9d3683..36b53919 100644
--- a/pyqtgraph/GraphicsScene/mouseEvents.py
+++ b/pyqtgraph/GraphicsScene/mouseEvents.py
@@ -18,7 +18,7 @@ class MouseDragEvent(object):
         self.currentItem = None
         self._buttonDownScenePos = {}
         self._buttonDownScreenPos = {}
-        for btn in [QtCore.Qt.LeftButton, QtCore.Qt.MidButton, QtCore.Qt.RightButton]:
+        for btn in [QtCore.Qt.LeftButton, QtCore.Qt.MiddleButton, QtCore.Qt.RightButton]:
             self._buttonDownScenePos[int(btn)] = moveEvent.buttonDownScenePos(btn)
             self._buttonDownScreenPos[int(btn)] = moveEvent.buttonDownScreenPos(btn)
         self._scenePos = moveEvent.scenePos()
diff --git a/pyqtgraph/graphicsItems/ROI.py b/pyqtgraph/graphicsItems/ROI.py
index 4f23ccd1..baaf722e 100644
--- a/pyqtgraph/graphicsItems/ROI.py
+++ b/pyqtgraph/graphicsItems/ROI.py
@@ -721,7 +721,7 @@ class ROI(GraphicsObject):
             if self.translatable and ev.acceptDrags(QtCore.Qt.LeftButton):
                 hover=True
                 
-            for btn in [QtCore.Qt.LeftButton, QtCore.Qt.RightButton, QtCore.Qt.MidButton]:
+            for btn in [QtCore.Qt.LeftButton, QtCore.Qt.RightButton, QtCore.Qt.MiddleButton]:
                 if int(self.acceptedMouseButtons() & btn) > 0 and ev.acceptClicks(btn):
                     hover=True
             if self.contextMenuEnabled():
@@ -731,7 +731,7 @@ class ROI(GraphicsObject):
             self.setMouseHover(True)
             ev.acceptClicks(QtCore.Qt.LeftButton)  ## If the ROI is hilighted, we should accept all clicks to avoid confusion.
             ev.acceptClicks(QtCore.Qt.RightButton)
-            ev.acceptClicks(QtCore.Qt.MidButton)
+            ev.acceptClicks(QtCore.Qt.MiddleButton)
             self.sigHoverEvent.emit(self)
         else:
             self.setMouseHover(False)
@@ -1342,7 +1342,7 @@ class Handle(UIGraphicsItem):
         if not ev.isExit():
             if ev.acceptDrags(QtCore.Qt.LeftButton):
                 hover=True
-            for btn in [QtCore.Qt.LeftButton, QtCore.Qt.RightButton, QtCore.Qt.MidButton]:
+            for btn in [QtCore.Qt.LeftButton, QtCore.Qt.RightButton, QtCore.Qt.MiddleButton]:
                 if int(self.acceptedMouseButtons() & btn) > 0 and ev.acceptClicks(btn):
                     hover=True
                     
diff --git a/pyqtgraph/graphicsItems/ViewBox/ViewBox.py b/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
index ac23fae4..0e17e008 100644
--- a/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
+++ b/pyqtgraph/graphicsItems/ViewBox/ViewBox.py
@@ -1243,7 +1243,7 @@ class ViewBox(GraphicsWidget):
             mask[1-axis] = 0.0
 
         ## Scale or translate based on mouse button
-        if ev.button() & (QtCore.Qt.LeftButton | QtCore.Qt.MidButton):
+        if ev.button() & (QtCore.Qt.LeftButton | QtCore.Qt.MiddleButton):
             if self.state['mouseMode'] == ViewBox.RectMode and axis is None:
                 if ev.isFinish():  ## This is the final move in the drag; change the view scale now
                     #print "finish"
diff --git a/pyqtgraph/opengl/GLViewWidget.py b/pyqtgraph/opengl/GLViewWidget.py
index 5129704f..3b497e0e 100644
--- a/pyqtgraph/opengl/GLViewWidget.py
+++ b/pyqtgraph/opengl/GLViewWidget.py
@@ -421,7 +421,7 @@ class GLViewWidget(QtOpenGL.QGLWidget):
                 self.pan(diff.x(), diff.y(), 0, relative='view')
             else:
                 self.orbit(-diff.x(), diff.y())
-        elif ev.buttons() == QtCore.Qt.MidButton:
+        elif ev.buttons() == QtCore.Qt.MiddleButton:
             if (ev.modifiers() & QtCore.Qt.ControlModifier):
                 self.pan(diff.x(), 0, diff.y(), relative='view-upright')
             else:
diff --git a/pyqtgraph/widgets/GraphicsView.py b/pyqtgraph/widgets/GraphicsView.py
index 2cdec4b8..da1c02a7 100644
--- a/pyqtgraph/widgets/GraphicsView.py
+++ b/pyqtgraph/widgets/GraphicsView.py
@@ -393,7 +393,7 @@ class GraphicsView(QtGui.QGraphicsView):
             self.scale(scale[0], scale[1], center=self.mapToScene(self.mousePressPos))
             self.sigDeviceRangeChanged.emit(self, self.range)
 
-        elif ev.buttons() in [QtCore.Qt.MidButton, QtCore.Qt.LeftButton]:  ## Allow panning by left or mid button.
+        elif ev.buttons() in [QtCore.Qt.MiddleButton, QtCore.Qt.LeftButton]:  ## Allow panning by left or mid button.
             px = self.pixelSize()
             tr = -delta * px