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Merge branch 'roi-mouse-interaction' into develop

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Luke Campagnola 2018-06-18 13:52:38 -07:00
commit 7bfc5106b2
1 changed files with 19 additions and 4 deletions
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23
pyqtgraph/graphicsItems/ROI.py
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@ -42,8 +42,22 @@ class ROI(GraphicsObject):
rotate/translate/scale handles.
ROIs can be customized to have a variety of shapes (by subclassing or using
any of the built-in subclasses) and any combination of draggable handles
that allow the user to manipulate the ROI.
that allow the user to manipulate the ROI.
Default mouse interaction:
* Left drag moves the ROI
* Left drag + Ctrl moves the ROI with position snapping
* Left drag + Alt rotates the ROI
* Left drag + Alt + Ctrl rotates the ROI with angle snapping
* Left drag + Shift scales the ROI
* Left drag + Shift + Ctrl scales the ROI with size snapping
In addition to the above interaction modes, it is possible to attach any
number of handles to the ROI that can be dragged to change the ROI in
various ways (see the ROI.add____Handle methods).
================ ===========================================================
**Arguments**
pos (length-2 sequence) Indicates the position of the ROI's
@ -75,7 +89,8 @@ class ROI(GraphicsObject):
movable (bool) If True, the ROI can be moved by dragging anywhere
inside the ROI. Default is True.
rotatable (bool) If True, the ROI can be rotated by mouse drag + ALT
resizable (bool) If True, the ROI can be resized by mouse drag + SHIFT
resizable (bool) If True, the ROI can be resized by mouse drag +
SHIFT
removable (bool) If True, the ROI will be given a context menu with
an option to remove the ROI. The ROI emits
sigRemoveRequested when this menu action is selected.
@ -1442,7 +1457,7 @@ class MouseDragHandler(object):
self.translateModifier = QtCore.Qt.NoModifier
self.rotateModifier = QtCore.Qt.AltModifier
self.scaleModifier = QtCore.Qt.ShiftModifier
self.rotateSpeed = 0.7
self.rotateSpeed = 0.5
self.scaleSpeed = 1.01
def mouseDragEvent(self, ev):