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Commitaaa1e20

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Trigger events via standard callbacks in widget testing.
Sending actual events through the whole event processing pipeline is amore complete test, reveals a few minor issues (see changes below), andavoids being linked to the rather nonstandard widget method names("press" or "_click"?).The coordinates in the "move first vertex after completing the polygon"subtest of test_polygon_selector(draw_bounding_box=True) were alteredbecause the original coordinates would actually not work in a real case,as the mouse-drag would actually also trigger the polygon-rescalingbehavior.The coordinates in test_rectangle_{drag,resize} were altered because forthe original coordinates, the click_and_drag would actually be ignore()ddue to starting (just) outside of the axes.
1 parent2f6589d commitaaa1e20

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-231
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5 files changed

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@@ -0,0 +1,4 @@
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``testing.widgets.mock_event`` and ``testing.widgets.do_event``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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... are deprecated. Directly construct Event objects (typically `.MouseEvent`
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or `.KeyEvent`) and pass them to ``canvas.callbacks.process()`` instead.

‎lib/matplotlib/backend_bases.py

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@@ -1422,6 +1422,15 @@ def __init__(self, name, canvas, x, y, button=None, key=None,
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self.step=step
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self.dblclick=dblclick
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@classmethod
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def_from_ax_coords(cls,name,ax,xy,*args,**kwargs):
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"""Generate a synthetic event at a given axes coordinate."""
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x,y=ax.transData.transform(xy)
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event=cls(name,ax.figure.canvas,x,y,*args,**kwargs)
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event.inaxes=ax
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event.xdata,event.ydata=xy# Force exact xy to avoid fp roundtrip issues.
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returnevent
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def__str__(self):
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return (f"{self.name}: "
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f"xy=({self.x},{self.y}) xydata=({self.xdata},{self.ydata}) "
@@ -1514,6 +1523,17 @@ def __init__(self, name, canvas, key, x=0, y=0, guiEvent=None):
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super().__init__(name,canvas,x,y,guiEvent=guiEvent)
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self.key=key
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@classmethod
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def_from_ax_coords(cls,name,ax,xy,key,*args,**kwargs):
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"""Generate a synthetic event at a given axes coordinate."""
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# Separate from MouseEvent._from_ax_coords instead of being defined in the base
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# class, due to different parameter order in the constructor signature.
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x,y=ax.transData.transform(xy)
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event=cls(name,ax.figure.canvas,key,x,y,*args,**kwargs)
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event.inaxes=ax
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event.xdata,event.ydata=xy# Force exact xy to avoid fp roundtrip issues.
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returnevent
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# Default callback for key events.
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def_key_handler(event):

‎lib/matplotlib/testing/widgets.py

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Original file line numberDiff line numberDiff line change
@@ -8,6 +8,7 @@
88

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fromunittestimportmock
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frommatplotlib.backend_basesimportMouseEvent,KeyEvent
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importmatplotlib.pyplotasplt
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@@ -24,6 +25,7 @@ def noop(*args, **kwargs):
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pass
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@_api.deprecated("3.11",alternative="MouseEvent or KeyEvent")
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defmock_event(ax,button=1,xdata=0,ydata=0,key=None,step=1):
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r"""
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Create a mock event that can stand in for `.Event` and its subclasses.
@@ -65,6 +67,7 @@ def mock_event(ax, button=1, xdata=0, ydata=0, key=None, step=1):
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returnevent
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@_api.deprecated("3.11",alternative="callbacks.process(event)")
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defdo_event(tool,etype,button=1,xdata=0,ydata=0,key=None,step=1):
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"""
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Trigger an event on the given tool.
@@ -105,15 +108,12 @@ def click_and_drag(tool, start, end, key=None):
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An optional key that is pressed during the whole operation
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(see also `.KeyEvent`).
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"""
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ifkeyisnotNone:
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# Press key
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do_event(tool,'on_key_press',xdata=start[0],ydata=start[1],
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button=1,key=key)
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ax=tool.ax
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ifkeyisnotNone:# Press key
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KeyEvent._from_ax_coords("key_press_event",ax,start,key)._process()
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# Click, move, and release mouse
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do_event(tool,'press',xdata=start[0],ydata=start[1],button=1)
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do_event(tool,'onmove',xdata=end[0],ydata=end[1],button=1)
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do_event(tool,'release',xdata=end[0],ydata=end[1],button=1)
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ifkeyisnotNone:
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# Release key
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do_event(tool,'on_key_release',xdata=end[0],ydata=end[1],
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button=1,key=key)
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MouseEvent._from_ax_coords("button_press_event",ax,start,1)._process()
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MouseEvent._from_ax_coords("motion_notify_event",ax,end,1)._process()
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MouseEvent._from_ax_coords("button_release_event",ax,end,1)._process()
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ifkeyisnotNone:# Release key
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KeyEvent._from_ax_coords("key_release_event",ax,end,key)._process()

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