8000 Add a click_and_move widget test helper by dstansby · Pull Request #21780 · matplotlib/matplotlib · GitHub
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Add a click_and_move widget test helper #21780

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Merged
merged 2 commits into from
Dec 14, 2021
Merged

Add a click_and_move widget test helper #21780

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5aa85d6
Add test_and_drag widget test helper
dstansby Dec 13, 2021
4be8972
Replace list by tuple for positions
timhoffm Dec 14, 2021
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29 changes: 29 additions & 0 deletions lib/matplotlib/testing/widgets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,3 +83,32 @@ def do_event(tool, etype, button=1, xdata=0, ydata=0, key=None, step=1):
event = mock_event(tool.ax, button, xdata, ydata, key, step)
func = getattr(tool, etype)
func(event)


def click_and_drag(tool, start, end, key=None):
"""
Helper to simulate a mouse drag operation.

Parameters
----------
tool : `matplotlib.widgets.Widget`
start : [float, float]
Starting point in data coordinates.
end : [float, float]
End point in data coordinates.
key : None or str
An optional key that is pressed during the whole operation
(see also `.KeyEvent`).
"""
if key is not None:
# Press key
do_event(tool, 'on_key_press', xdata=start[0], ydata=start[1],
button=1, key=key)
# Click, move, and release mouse
do_event(tool, 'press', xdata=start[0], ydata=start[1], button=1)
do_event(tool, 'onmove', xdata=end[0], ydata=end[1], button=1)
do_event(tool, 'release', xdata=end[0], ydata=end[1], button=1)
if key is not None:
# Release key
do_event(tool, 'on_key_release', xdata=end[0], ydata=end[1],
button=1, key=key)
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