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from contextlib import nullcontext
import functools
from unittest import mock
from matplotlib._api.deprecation import MatplotlibDeprecationWarning
from matplotlib.backend_bases import MouseEvent
import matplotlib.colors as mcolors
import matplotlib.widgets as widgets
import matplotlib.pyplot as plt
from matplotlib.testing.decorators import check_figures_equal, image_comparison
from matplotlib.testing.widgets import (click_and_drag, do_event, get_ax,
mock_event, noop)
import numpy as np
from numpy.testing import assert_allclose
import pytest
@pytest.fixture
def ax():
return get_ax()
@pytest.mark.parametrize('kwargs, warning_msg', [
(dict(), None),
(dict(drawtype='line', useblit=False),
"Support for drawtype='line' is deprecated"),
(dict(useblit=True, button=1), None),
(dict(drawtype='none', minspanx=10, minspany=10),
"Support for drawtype='none' is deprecated"),
(dict(minspanx=10, minspany=10, spancoords='pixels'), None),
(dict(props=dict(fill=True)), None),
])
def test_rectangle_selector(ax, kwargs, warning_msg):
onselect = mock.Mock(spec=noop, return_value=None)
with (pytest.warns(MatplotlibDeprecationWarning, match=warning_msg)
if warning_msg else nullcontext()):
tool = widgets.RectangleSelector(ax, onselect, **kwargs)
do_event(tool, 'press', xdata=100, ydata=100, button=1)
do_event(tool, 'onmove', xdata=199, ydata=199, button=1)
# purposely drag outside of axis for release
do_event(tool, 'release', xdata=250, ydata=250, button=1)
if kwargs.get('drawtype', None) not in ['line', 'none']:
assert_allclose(tool.geometry,
[[100., 100, 199, 199, 100],
[100, 199, 199, 100, 100]],
err_msg=tool.geometry)
onselect.assert_called_once()
(epress, erelease), kwargs = onselect.call_args
assert epress.xdata == 100
assert epress.ydata == 100
assert erelease.xdata == 199
assert erelease.ydata == 199
assert kwargs == {}
@pytest.mark.parametrize('spancoords', ['data', 'pixels'])
@pytest.mark.parametrize('minspanx, x1', [[0, 10], [1, 10.5], [1, 11]])
@pytest.mark.parametrize('minspany, y1', [[0, 10], [1, 10.5], [1, 11]])
def test_rectangle_minspan(ax, spancoords, minspanx, x1, minspany, y1):
onselect = mock.Mock(spec=noop, return_value=None)
x0, y0 = (10, 10)
if spancoords == 'pixels':
minspanx, minspany = (ax.transData.transform((x1, y1)) -
ax.transData.transform((x0, y0)))
tool = widgets.RectangleSelector(ax, onselect, interactive=True,
spancoords=spancoords,
minspanx=minspanx, minspany=minspany)
# Too small to create a selector
click_and_drag(tool, start=(x0, x1), end=(y0, y1))
assert not tool._selection_completed
onselect.assert_not_called()
click_and_drag(tool, start=(20, 20), end=(30, 30))
assert tool._selection_completed
onselect.assert_called_once()
# Too small to create a selector. Should clear existing selector, and
# trigger onselect because there was a preexisting selector
onselect.reset_mock()
click_and_drag(tool, start=(x0, y0), end=(x1, y1))
assert not tool._selection_completed
onselect.assert_called_once()
(epress, erelease), kwargs = onselect.call_args
assert epress.xdata == x0
assert epress.ydata == y0
assert erelease.xdata == x1
assert erelease.ydata == y1
assert kwargs == {}
def test_deprecation_selector_visible_attribute(ax):
tool = widgets.RectangleSelector(ax, lambda *args: None)
assert tool.get_visible()
with pytest.warns(
MatplotlibDeprecationWarning,
match="was deprecated in Matplotlib 3.6"):
tool.visible = False
assert not tool.get_visible()
@pytest.mark.parametrize('drag_from_anywhere, new_center',
[[True, (60, 75)],
[False, (30, 20)]])
def test_rectangle_drag(ax, drag_from_anywhere, new_center):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True,
drag_from_anywhere=drag_from_anywhere)
# Create rectangle
click_and_drag(tool, start=(0, 10), end=(100, 120))
assert tool.center == (50, 65)
# Drag inside rectangle, but away from centre handle
#
# If drag_from_anywhere == True, this will move the rectangle by (10, 10),
# giving it a new center of (60, 75)
#
# If drag_from_anywhere == False, this will create a new rectangle with
# center (30, 20)
click_and_drag(tool, start=(25, 15), end=(35, 25))
assert tool.center == new_center
# Check that in both cases, dragging outside the rectangle draws a new
# rectangle
click_and_drag(tool, start=(175, 185), end=(185, 195))
assert tool.center == (180, 190)
def test_rectangle_selector_set_props_handle_props(ax):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True,
props=dict(facecolor='b', alpha=0.2),
handle_props=dict(alpha=0.5))
# Create rectangle
click_and_drag(tool, start=(0, 10), end=(100, 120))
artist = tool._selection_artist
assert artist.get_facecolor() == mcolors.to_rgba('b', alpha=0.2)
tool.set_props(facecolor='r', alpha=0.3)
assert artist.get_facecolor() == mcolors.to_rgba('r', alpha=0.3)
for artist in tool._handles_artists:
assert artist.get_markeredgecolor() == 'black'
assert artist.get_alpha() == 0.5
tool.set_handle_props(markeredgecolor='r', alpha=0.3)
for artist in tool._handles_artists:
assert artist.get_markeredgecolor() == 'r'
assert artist.get_alpha() == 0.3
def test_rectangle_resize(ax):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Create rectangle
click_and_drag(tool, start=(0, 10), end=(100, 120))
assert tool.extents == (0.0, 100.0, 10.0, 120.0)
# resize NE handle
extents = tool.extents
xdata, ydata = extents[1], extents[3]
xdata_new, ydata_new = xdata + 10, ydata + 5
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert tool.extents == (extents[0], xdata_new, extents[2], ydata_new)
# resize E handle
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdata_new, ydata_new = xdata + 10, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert tool.extents == (extents[0], xdata_new, extents[2], extents[3])
# resize W handle
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdata_new, ydata_new = xdata + 15, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert tool.extents == (xdata_new, extents[1], extents[2], extents[3])
# resize SW handle
extents = tool.extents
xdata, ydata = extents[0], extents[2]
xdata_new, ydata_new = xdata + 20, ydata + 25
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert tool.extents == (xdata_new, extents[1], ydata_new, extents[3])
def test_rectangle_add_state(ax):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Create rectangle
click_and_drag(tool, start=(70, 65), end=(125, 130))
with pytest.raises(ValueError):
tool.add_state('unsupported_state')
with pytest.raises(ValueError):
tool.add_state('clear')
tool.add_state('move')
tool.add_state('square')
tool.add_state('center')
@pytest.mark.parametrize('add_state', [True, False])
def test_rectangle_resize_center(ax, add_state):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Create rectangle
click_and_drag(tool, start=(70, 65), end=(125, 130))
assert tool.extents == (70.0, 125.0, 65.0, 130.0)
if add_state:
tool.add_state('center')
use_key = None
else:
use_key = 'control'
# resize NE handle
extents = tool.extents
xdata, ydata = extents[1], extents[3]
xdiff, ydiff = 10, 5
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0] - xdiff, xdata_new,
extents[2] - ydiff, ydata_new)
# resize E handle
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 10
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0] - xdiff, xdata_new,
extents[2], extents[3])
# resize E handle negative diff
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -20
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0] - xdiff, xdata_new,
extents[2], extents[3])
# resize W handle
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 15
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (xdata_new, extents[1] - xdiff,
extents[2], extents[3])
# resize W handle negative diff
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -25
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (xdata_new, extents[1] - xdiff,
extents[2], extents[3])
# resize SW handle
extents = tool.extents
xdata, ydata = extents[0], extents[2]
xdiff, ydiff = 20, 25
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (xdata_new, extents[1] - xdiff,
ydata_new, extents[3] - ydiff)
@pytest.mark.parametrize('add_state', [True, False])
def test_rectangle_resize_square(ax, add_state):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Create rectangle
click_and_drag(tool, start=(70, 65), end=(120, 115))
assert tool.extents == (70.0, 120.0, 65.0, 115.0)
if add_state:
tool.add_state('square')
use_key = None
else:
use_key = 'shift'
# resize NE handle
extents = tool.extents
xdata, ydata = extents[1], extents[3]
xdiff, ydiff = 10, 5
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0], xdata_new,
extents[2], extents[3] + xdiff)
# resize E handle
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 10
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0], xdata_new,
extents[2], extents[3] + xdiff)
# resize E handle negative diff
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -20
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0], xdata_new,
extents[2], extents[3] + xdiff)
# resize W handle
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 15
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (xdata_new, extents[1],
extents[2], extents[3] - xdiff)
# resize W handle negative diff
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -25
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (xdata_new, extents[1],
extents[2], extents[3] - xdiff)
# resize SW handle
extents = tool.extents
xdata, ydata = extents[0], extents[2]
xdiff, ydiff = 20, 25
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new),
key=use_key)
assert tool.extents == (extents[0] + ydiff, extents[1],
ydata_new, extents[3])
def test_rectangle_resize_square_center(ax):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Create rectangle
click_and_drag(tool, start=(70, 65), end=(120, 115))
tool.add_state('square')
tool.add_state('center')
assert_allclose(tool.extents, (70.0, 120.0, 65.0, 115.0))
# resize NE handle
extents = tool.extents
xdata, ydata = extents[1], extents[3]
xdiff, ydiff = 10, 5
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (extents[0] - xdiff, xdata_new,
extents[2] - xdiff, extents[3] + xdiff))
# resize E handle
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 10
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (extents[0] - xdiff, xdata_new,
extents[2] - xdiff, extents[3] + xdiff))
# resize E handle negative diff
extents = tool.extents
xdata, ydata = extents[1], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -20
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (extents[0] - xdiff, xdata_new,
extents[2] - xdiff, extents[3] + xdiff))
# resize W handle
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = 5
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (xdata_new, extents[1] - xdiff,
extents[2] + xdiff, extents[3] - xdiff))
# resize W handle negative diff
extents = tool.extents
xdata, ydata = extents[0], extents[2] + (extents[3] - extents[2]) / 2
xdiff = -25
xdata_new, ydata_new = xdata + xdiff, ydata
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (xdata_new, extents[1] - xdiff,
extents[2] + xdiff, extents[3] - xdiff))
# resize SW handle
extents = tool.extents
xdata, ydata = extents[0], extents[2]
xdiff, ydiff = 20, 25
xdata_new, ydata_new = xdata + xdiff, ydata + ydiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, (extents[0] + ydiff, extents[1] - ydiff,
ydata_new, extents[3] - ydiff))
@pytest.mark.parametrize('selector_class',
[widgets.RectangleSelector, widgets.EllipseSelector])
def test_rectangle_rotate(ax, selector_class):
tool = selector_class(ax, onselect=noop, interactive=True)
# Draw rectangle
click_and_drag(tool, start=(100, 100), end=(130, 140))
assert tool.extents == (100, 130, 100, 140)
assert len(tool._state) == 0
# Rotate anticlockwise using top-right corner
do_event(tool, 'on_key_press', key='r')
assert tool._state == set(['rotate'])
assert len(tool._state) == 1
click_and_drag(tool, start=(130, 140), end=(120, 145))
do_event(tool, 'on_key_press', key='r')
assert len(tool._state) == 0
# Extents shouldn't change (as shape of rectangle hasn't changed)
assert tool.extents == (100, 130, 100, 140)
assert_allclose(tool.rotation, 25.56, atol=0.01)
tool.rotation = 45
assert tool.rotation == 45
# Corners should move
assert_allclose(tool.corners,
np.array([[118.53, 139.75, 111.46, 90.25],
[95.25, 116.46, 144.75, 123.54]]), atol=0.01)
# Scale using top-right corner
click_and_drag(tool, start=(110, 145), end=(110, 160))
assert_allclose(tool.extents, (100, 139.75, 100, 151.82), atol=0.01)
if selector_class == widgets.RectangleSelector:
with pytest.raises(ValueError):
tool._selection_artist.rotation_point = 'unvalid_value'
def test_rectangle_add_remove_set(ax):
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
# Draw rectangle
click_and_drag(tool, start=(100, 100), end=(130, 140))
assert tool.extents == (100, 130, 100, 140)
assert len(tool._state) == 0
for state in ['rotate', 'square', 'center']:
tool.add_state(state)
assert len(tool._state) == 1
tool.remove_state(state)
assert len(tool._state) == 0
@pytest.mark.parametrize('use_data_coordinates', [False, True])
def test_rectangle_resize_square_center_aspect(ax, use_data_coordinates):
ax.set_aspect(0.8)
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True,
use_data_coordinates=use_data_coordinates)
# Create rectangle
click_and_drag(tool, start=(70, 65), end=(120, 115))
assert tool.extents == (70.0, 120.0, 65.0, 115.0)
tool.add_state('square')
tool.add_state('center')
if use_data_coordinates:
# resize E handle
extents = tool.extents
xdata, ydata, width = extents[1], extents[3], extents[1] - extents[0]
xdiff, ycenter = 10, extents[2] + (extents[3] - extents[2]) / 2
xdata_new, ydata_new = xdata + xdiff, ydata
ychange = width / 2 + xdiff
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, [extents[0] - xdiff, xdata_new,
ycenter - ychange, ycenter + ychange])
else:
# resize E handle
extents = tool.extents
xdata, ydata = extents[1], extents[3]
xdiff = 10
xdata_new, ydata_new = xdata + xdiff, ydata
ychange = xdiff * 1 / tool._aspect_ratio_correction
click_and_drag(tool, start=(xdata, ydata), end=(xdata_new, ydata_new))
assert_allclose(tool.extents, [extents[0] - xdiff, xdata_new,
46.25, 133.75])
def test_ellipse(ax):
"""For ellipse, test out the key modifiers"""
tool = widgets.EllipseSelector(ax, onselect=noop,
grab_range=10, interactive=True)
tool.extents = (100, 150, 100, 150)
# drag the rectangle
click_and_drag(tool, start=(125, 125), end=(145, 145))
assert tool.extents == (120, 170, 120, 170)
# create from center
click_and_drag(tool, start=(100, 100), end=(125, 125), key='control')
assert tool.extents == (75, 125, 75, 125)
# create a square
click_and_drag(tool, start=(10, 10), end=(35, 30), key='shift')
extents = [int(e) for e in tool.extents]
assert extents == [10, 35, 10, 35]
# create a square from center
click_and_drag(tool, start=(100, 100), end=(125, 130), key='ctrl+shift')
extents = [int(e) for e in tool.extents]
assert extents == [70, 130, 70, 130]
assert tool.geometry.shape == (2, 73)
assert_allclose(tool.geometry[:, 0], [70., 100])
def test_rectangle_handles(ax):
tool = widgets.RectangleSelector(ax, onselect=noop,
grab_range=10,
interactive=True,
handle_props={'markerfacecolor': 'r',
'markeredgecolor': 'b'})
tool.extents = (100, 150, 100, 150)
assert_allclose(tool.corners, ((100, 150, 150, 100), (100, 100, 150, 150)))
assert tool.extents == (100, 150, 100, 150)
assert_allclose(tool.edge_centers,
((100, 125.0, 150, 125.0), (125.0, 100, 125.0, 150)))
assert tool.extents == (100, 150, 100, 150)
# grab a corner and move it
click_and_drag(tool, start=(100, 100), end=(120, 120))
assert tool.extents == (120, 150, 120, 150)
# grab the center and move it
click_and_drag(tool, start=(132, 132), end=(120, 120))
assert tool.extents == (108, 138, 108, 138)
# create a new rectangle
click_and_drag(tool, start=(10, 10), end=(100, 100))
assert tool.extents == (10, 100, 10, 100)
# Check that marker_props worked.
assert mcolors.same_color(
tool._corner_handles.artists[0].get_markerfacecolor(), 'r')
assert mcolors.same_color(
tool._corner_handles.artists[0].get_markeredgecolor(), 'b')
@pytest.mark.parametrize('interactive', [True, False])
def test_rectangle_selector_onselect(ax, interactive):
# check when press and release events take place at the same position
onselect = mock.Mock(spec=noop, return_value=None)
tool = widgets.RectangleSelector(ax, onselect, interactive=interactive)
# move outside of axis
click_and_drag(tool, start=(100, 110), end=(150, 120))
onselect.assert_called_once()
assert tool.extents == (100.0, 150.0, 110.0, 120.0)
onselect.reset_mock()
click_and_drag(tool, start=(10, 100), end=(10, 100))
onselect.assert_called_once()
@pytest.mark.parametrize('ignore_event_outside', [True, False])
def test_rectangle_selector_ignore_outside(ax, ignore_event_outside):
onselect = mock.Mock(spec=noop, return_value=None)
tool = widgets.RectangleSelector(ax, onselect,
ignore_event_outside=ignore_event_outside)
click_and_drag(tool, start=(100, 110), end=(150, 120))
onselect.assert_called_once()
assert tool.extents == (100.0, 150.0, 110.0, 120.0)
onselect.reset_mock()
# Trigger event outside of span
click_and_drag(tool, start=(150, 150), end=(160, 160))
if ignore_event_outside:
# event have been ignored and span haven't changed.
onselect.assert_not_called()
assert tool.extents == (100.0, 150.0, 110.0, 120.0)
else:
# A new shape is created
onselect.assert_called_once()
assert tool.extents == (150.0, 160.0, 150.0, 160.0)
@pytest.mark.parametrize('orientation, onmove_callback, kwargs', [
('horizontal', False, dict(minspan=10, useblit=True)),
('vertical', True, dict(button=1)),
('horizontal', False, dict(props=dict(fill=True))),
('horizontal', False, dict(interactive=True)),
])
def test_span_selector(ax, orientation, onmove_callback, kwargs):
onselect = mock.Mock(spec=noop, return_value=None)
onmove = mock.Mock(spec=noop, return_value=None)
if onmove_callback:
kwargs['onmove_callback'] = onmove
tool = widgets.SpanSelector(ax, onselect, orientation, **kwargs)
do_event(tool, 'press', xdata=100, ydata=100, button=1)
# move outside of axis
do_event(tool, 'onmove', xdata=199, ydata=199, button=1)
do_event(tool, 'release', xdata=250, ydata=250, button=1)
onselect.assert_called_once_with(100, 199)
if onmove_callback:
onmove.assert_called_once_with(100, 199)
@pytest.mark.parametrize('interactive', [True, False])
def test_span_selector_onselect(ax, interactive):
onselect = mock.Mock(spec=noop, return_value=None)
tool = widgets.SpanSelector(ax, onselect, 'horizontal',
interactive=interactive)
# move outside of axis
click_and_drag(tool, start=(100, 100), end=(150, 100))
onselect.assert_called_once()
assert tool.extents == (100, 150)
onselect.reset_mock()
click_and_drag(tool, start=(10, 100), end=(10, 100))
onselect.assert_called_once()
@pytest.mark.parametrize('ignore_event_outside', [True, False])
def test_span_selector_ignore_outside(ax, ignore_event_outside):
onselect = mock.Mock(spec=noop, return_value=None)
onmove = mock.Mock(spec=noop, return_value=None)
tool = widgets.SpanSelector(ax, onselect, 'horizontal',
onmove_callback=onmove,
ignore_event_outside=ignore_event_outside)
click_and_drag(tool, start=(100, 100), end=(125, 125))
onselect.assert_called_once()
onmove.assert_called_once()
assert tool.extents == (100, 125)
onselect.reset_mock()
onmove.reset_mock()
# Trigger event outside of span
click_and_drag(tool, start=(150, 150), end=(160, 160))
if ignore_event_outside:
# event have been ignored and span haven't changed.
onselect.assert_not_called()
onmove.assert_not_called()
assert tool.extents == (100, 125)
else:
# A new shape is created
onselect.assert_called_once()
onmove.assert_called_once()
assert tool.extents == (150, 160)
@pytest.mark.parametrize('drag_from_anywhere', [True, False])
def test_span_selector_drag(ax, drag_from_anywhere):
# Create span
tool = widgets.SpanSelector(ax, onselect=noop, direction='horizontal',
interactive=True,
drag_from_anywhere=drag_from_anywhere)
click_and_drag(tool, start=(10, 10), end=(100, 120))
assert tool.extents == (10, 100)
# Drag inside span
#
# If drag_from_anywhere == True, this will move the span by 10,
# giving new value extents = 20, 110
#
# If drag_from_anywhere == False, this will create a new span with
# value extents = 25, 35
click_and_drag(tool, start=(25, 15), end=(35, 25))
if drag_from_anywhere:
assert tool.extents == (20, 110)
else:
assert tool.extents == (25, 35)
# Check that in both cases, dragging outside the span draws a new span
click_and_drag(tool, start=(175, 185), end=(185, 195))
assert tool.extents == (175, 185)
def test_span_selector_direction(ax):
tool = widgets.SpanSelector(ax, onselect=noop, direction='horizontal',
interactive=True)
assert tool.direction == 'horizontal'
assert tool._edge_handles.direction == 'horizontal'
with pytest.raises(ValueError):
tool = widgets.SpanSelector(ax, onselect=noop,
direction='invalid_direction')
tool.direction = 'vertical'
assert tool.direction == 'vertical'
assert tool._edge_handles.direction == 'vertical'
with pytest.raises(ValueError):
tool.direction = 'invalid_string'
def test_span_selector_set_props_handle_props(ax):
tool = widgets.SpanSelector(ax, onselect=noop, direction='horizontal',
interactive=True,
props=dict(facecolor='b', alpha=0.2),
handle_props=dict(alpha=0.5))
# Create rectangle
click_and_drag(tool, start=(0, 10), end=(100, 120))
artist = tool._selection_artist
assert artist.get_facecolor() == mcolors.to_rgba('b', alpha=0.2)
tool.set_props(facecolor='r', alpha=0.3)
assert artist.get_facecolor() == mcolors.to_rgba('r', alpha=0.3)
for artist in tool._handles_artists:
assert artist.get_color() == 'b'
assert artist.get_alpha() == 0.5
tool.set_handle_props(color='r', alpha=0.3)
for artist in tool._handles_artists:
assert artist.get_color() == 'r'
assert artist.get_alpha() == 0.3
@pytest.mark.parametrize('selector', ['span', 'rectangle'])
def test_selector_clear(ax, selector):
kwargs = dict(ax=ax, onselect=noop, interactive=True)
if selector == 'span':
Selector = widgets.SpanSelector
kwargs['direction'] = 'horizontal'
else:
Selector = widgets.RectangleSelector
tool = Selector(**kwargs)
click_and_drag(tool, start=(10, 10), end=(100, 120))
# press-release event outside the selector to clear the selector
click_and_drag(tool, start=(130, 130), end=(130, 130))
assert not tool._selection_completed
kwargs['ignore_event_outside'] = True
tool = Selector(**kwargs)
assert tool.ignore_event_outside
click_and_drag(tool, start=(10, 10), end=(100, 120))
# press-release event outside the selector ignored
click_and_drag(tool, start=(130, 130), end=(130, 130))
assert tool._selection_completed
do_event(tool, 'on_key_press', key='escape')
assert not tool._selection_completed
@pytest.mark.parametrize('selector', ['span', 'rectangle'])
def test_selector_clear_method(ax, selector):
if selector == 'span':
tool = widgets.SpanSelector(ax, onselect=noop, direction='horizontal',
interactive=True,
ignore_event_outside=True)
else:
tool = widgets.RectangleSelector(ax, onselect=noop, interactive=True)
click_and_drag(tool, start=(10, 10), end=(100, 120))
assert tool._selection_completed
assert tool.get_visible()
if selector == 'span':
assert tool.extents == (10, 100)
tool.clear()
assert not tool._selection_completed
assert not tool.get_visible()
# Do another cycle of events to make sure we can
click_and_drag(tool, start=(10, 10), end=(50, 120))
assert tool._selection_completed
assert tool.get_visible()
if selector == 'span':
assert tool.extents == (10, 50)
def test_span_selector_add_state(ax):
tool = widgets.SpanSelector(ax, noop, 'horizontal',
interactive=True)
with pytest.raises(ValueError):
tool.add_state('unsupported_state')
with pytest.raises(ValueError):
tool.add_state('center')
with pytest.raises(ValueError):
tool.add_state('square')
tool.add_state('move')
def test_tool_line_handle(ax):
positions = [20, 30, 50]
tool_line_handle = widgets.ToolLineHandles(ax, positions, 'horizontal',
useblit=False)
for artist in tool_line_handle.artists:
assert not artist.get_animated()
assert not artist.get_visible()
tool_line_handle.set_visible(True)
tool_line_handle.set_animated(True)
for artist in tool_line_handle.artists:
assert artist.get_animated()
assert artist.get_visible()
assert tool_line_handle.positions == positions
@pytest.mark.parametrize('direction', ("horizontal", "vertical"))
def test_span_selector_bound(direction):
fig, ax = plt.subplots(1, 1)
ax.plot([10, 20], [10, 30])
ax.figure.canvas.draw()
x_bound = ax.get_xbound()
y_bound = ax.get_ybound()
tool = widgets.SpanSelector(ax, print, direction, interactive=True)
assert ax.get_xbound() == x_bound
assert ax.get_ybound() == y_bound
bound = x_bound if direction == 'horizontal' else y_bound
assert tool._edge_handles.positions == list(bound)
press_data = [10.5, 11.5]
move_data = [11, 13] # Updating selector is done in onmove
release_data = move_data
click_and_drag(tool, start=press_data, end=move_data)
assert ax.get_xbound() == x_bound
assert ax.get_ybound() == y_bound
index = 0 if direction == 'horizontal' else 1
handle_positions = [press_data[index], release_data[index]]
assert tool._edge_handles.positions == handle_positions
@pytest.mark.backend('QtAgg', skip_on_importerror=True)
def test_span_selector_animated_artists_callback():
"""Check that the animated artists changed in callbacks are updated."""
x = np.linspace(0, 2 * np.pi, 100)
values = np.sin(x)
fig, ax = plt.subplots()
ln, = ax.plot(x, values, animated=True)
ln2, = ax.plot([], animated=True)
# spin the event loop to let the backend process any pending operations
# before drawing artists
# See blitting tutorial
plt.pause(0.1)
ax.draw_artist(ln)
fig.canvas.blit(fig.bbox)
def mean(vmin, vmax):
# Return mean of values in x between *vmin* and *vmax*
indmin, indmax = np.searchsorted(x, (vmin, vmax))
v = values[indmin:indmax].mean()
ln2.set_data(x, v)
span = widgets.SpanSelector(ax, mean, direction='horizontal',
onmove_callback=mean,
interactive=True,
drag_from_anywhere=True,
useblit=True)
# Add span selector and check that the line is draw after it was updated
# by the callback
press_data = [1, 2]
move_data = [2, 2]
do_event(span, 'press', xdata=press_data[0], ydata=press_data[1], button=1)
do_event(span, 'onmove', xdata=move_data[0], ydata=move_data[1], button=1)
assert span._get_animated_artists() == (ln, ln2)
assert ln.stale is False
assert ln2.stale
assert ln2.get_ydata() == 0.9547335049088455
span.update()
assert ln2.stale is False
# Change span selector and check that the line is drawn/updated after its
# value was updated by the callback
press_data = [4, 2]
move_data = [5, 2]
release_data = [5, 2]
do_event(span, 'press', xdata=press_data[0], ydata=press_data[1], button=1)
do_event(span, 'onmove', xdata=move_data[0], ydata=move_data[1], button=1)
assert ln.stale is False
assert ln2.stale
assert ln2.get_ydata() == -0.9424150707548072
do_event(span, 'release', xdata=release_data[0],
ydata=release_data[1], button=1)
assert ln2.stale is False
def test_snapping_values_span_selector(ax):
def onselect(*args):
pass
tool = widgets.SpanSelector(ax, onselect, direction='horizontal',)
snap_function = tool._snap
snap_values = np.linspace(0, 5, 11)
values = np.array([-0.1, 0.1, 0.2, 0.5, 0.6, 0.7, 0.9, 4.76, 5.0, 5.5])
expect = np.array([00.0, 0.0, 0.0, 0.5, 0.5, 0.5, 1.0, 5.00, 5.0, 5.0])
values = snap_function(values, snap_values)
assert_allclose(values, expect)
def test_span_selector_snap(ax):
def onselect(vmin, vmax):
ax._got_onselect = True
snap_values = np.arange(50) * 4
tool = widgets.SpanSelector(ax, onselect, direction='horizontal',
snap_values=snap_values)
tool.extents = (17, 35)
assert tool.extents == (16, 36)
tool.snap_values = None
assert tool.snap_values is None
tool.extents = (17, 35)
assert tool.extents == (17, 35)
@pytest.mark.parametrize('kwargs', [
dict(),
dict(useblit=False, props=dict(color='red')),
dict(useblit=True, button=1),
])
def test_lasso_selector(ax, kwargs):
onselect = mock.Mock(spec=noop, return_value=None)
tool = widgets.LassoSelector(ax, onselect, **kwargs)
do_event(tool, 'press', xdata=100, ydata=100, button=1)
do_event(tool, 'onmove', xdata=125, ydata=125, button=1)
do_event(tool, 'release', xdata=150, ydata=150, button=1)
onselect.assert_called_once_with([(100, 100), (125, 125), (150, 150)])
def test_CheckButtons(ax):
check = widgets.CheckButtons(ax, ('a', 'b', 'c'), (True, False, True))
assert check.get_status() == [True, False, True]
check.set_active(0)
assert check.get_status() == [False, False, True]
cid = check.on_clicked(lambda: None)
check.disconnect(cid)
@pytest.mark.parametrize("toolbar", ["none", "toolbar2", "toolmanager"])
def test_TextBox(ax, toolbar):
# Avoid "toolmanager is provisional" warning.
dict.__setitem__(plt.rcParams, "toolbar", toolbar)
submit_event = mock.Mock(spec=noop, return_value=None)
text_change_event = mock.Mock(spec=noop, return_value=None)
tool = widgets.TextBox(ax, '')
tool.on_submit(submit_event)
tool.on_text_change(text_change_event)
assert tool.text == ''
do_event(tool, '_click')
tool.set_val('x**2')
assert tool.text == 'x**2'
assert text_change_event.call_count == 1
tool.begin_typing(tool.text)
tool.stop_typing()
assert submit_event.call_count == 2
do_event(tool, '_click')
do_event(tool, '_keypress', key='+')
do_event(tool, '_keypress', key='5')
assert text_change_event.call_count == 3
@image_comparison(['check_radio_buttons.png'], style='mpl20', remove_text=True)
def test_check_radio_buttons_image():
ax = get_ax()
# Remove this line when this test image is regenerated.
plt.rcParams['text.kerning_factor'] = 6
plt.subplots_adjust(left=0.3)
rax1 = plt.axes([0.05, 0.7, 0.15, 0.15])
rax2 = plt.axes([0.05, 0.2, 0.15, 0.15])
widgets.RadioButtons(rax1, ('Radio 1', 'Radio 2', 'Radio 3'))
widgets.CheckButtons(rax2, ('Check 1', 'Check 2', 'Check 3'),
(False, True, True))
@image_comparison(['check_bunch_of_radio_buttons.png'],
style='mpl20', remove_text=True)
def test_check_bunch_of_radio_buttons():
rax = plt.axes([0.05, 0.1, 0.15, 0.7])
widgets.RadioButtons(rax, ('B1', 'B2', 'B3', 'B4', 'B5', 'B6',
'B7', 'B8', 'B9', 'B10', 'B11', 'B12',
'B13', 'B14', 'B15'))
def test_slider_slidermin_slidermax_invalid():
fig, ax = plt.subplots()
# test min/max with floats
with pytest.raises(ValueError):
widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
slidermin=10.0)
with pytest.raises(ValueError):
widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
slidermax=10.0)
def test_slider_slidermin_slidermax():
fig, ax = plt.subplots()
slider_ = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=5.0)
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=1.0, slidermin=slider_)
assert slider.val == slider_.val
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=10.0, slidermax=slider_)
assert slider.val == slider_.val
def test_slider_valmin_valmax():
fig, ax = plt.subplots()
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=-10.0)
assert slider.val == slider.valmin
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=25.0)
assert slider.val == slider.valmax
def test_slider_valstep_snapping():
fig, ax = plt.subplots()
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=11.4, valstep=1)
assert slider.val == 11
slider = widgets.Slider(ax=ax, label='', valmin=0.0, valmax=24.0,
valinit=11.4, valstep=[0, 1, 5.5, 19.7])
assert slider.val == 5.5
def test_slider_horizontal_vertical():
fig, ax = plt.subplots()
slider = widgets.Slider(ax=ax, label='', valmin=0, valmax=24,
valinit=12, orientation='horizontal')
slider.set_val(10)
assert slider.val == 10
# check the dimension of the slider patch in axes units
box = slider.poly.get_extents().transformed(ax.transAxes.inverted())
assert_allclose(box.bounds, [0, .25, 10/24, .5])
fig, ax = plt.subplots()
slider = widgets.Slider(ax=ax, label='', valmin=0, valmax=24,
valinit=12, orientation='vertical')
slider.set_val(10)
assert slider.val == 10
# check the dimension of the slider patch in axes units
box = slider.poly.get_extents().transformed(ax.transAxes.inverted())
assert_allclose(box.bounds, [.25, 0, .5, 10/24])
def test_slider_reset():
fig, ax = plt.subplots()
slider = widgets.Slider(ax=ax, label='', valmin=0, valmax=1, valinit=.5)
slider.set_val(0.75)
slider.reset()
assert slider.val == 0.5
@pytest.mark.parametrize("orientation", ["horizontal", "vertical"])
def test_range_slider(orientation):
if orientation == "vertical":
idx = [1, 0, 3, 2]
else:
idx = [0, 1, 2, 3]
fig, ax = plt.subplots()
slider = widgets.RangeSlider(
ax=ax, label="", valmin=0.0, valmax=1.0, orientation=orientation,
valinit=[0.1, 0.34]
)
box = slider.poly.get_extents().transformed(ax.transAxes.inverted())
assert_allclose(box.get_points().flatten()[idx], [0.1, 0.25, 0.34, 0.75])
# Check initial value is set correctly
assert_allclose(slider.val, (0.1, 0.34))
def handle_positions(slider):
if orientation == "vertical":
return [h.get_ydata()[0] for h in slider._handles]
else:
return [h.get_xdata()[0] for h in slider._handles]
slider.set_val((0.2, 0.6))
assert_allclose(slider.val, (0.2, 0.6))
assert_allclose(handle_positions(slider), (0.2, 0.6))
box = slider.poly.get_extents().transformed(ax.transAxes.inverted())
assert_allclose(box.get_points().flatten()[idx], [0.2, .25, 0.6, .75])
slider.set_val((0.2, 0.1))
assert_allclose(slider.val, (0.1, 0.2))
assert_allclose(handle_positions(slider), (0.1, 0.2))
slider.set_val((-1, 10))
assert_allclose(slider.val, (0, 1))
assert_allclose(handle_positions(slider), (0, 1))
slider.reset()
assert_allclose(slider.val, (0.1, 0.34))
assert_allclose(handle_positions(slider), (0.1, 0.34))
@pytest.mark.parametrize("orientation", ["horizontal", "vertical"])
def test_range_slider_same_init_values(orientation):
if orientation == "vertical":
idx = [1, 0, 3, 2]
else:
idx = [0, 1, 2, 3]
fig, ax = plt.subplots()
slider = widgets.RangeSlider(
ax=ax, label="", valmin=0.0, valmax=1.0, orientation=orientation,
valinit=[0, 0]
)
box = slider.poly.get_extents().transformed(ax.transAxes.inverted())
assert_allclose(box.get_points().flatten()[idx], [0, 0.25, 0, 0.75])
def check_polygon_selector(event_sequence, expected_result, selections_count,
**kwargs):
"""
Helper function to test Polygon Selector.
Parameters
----------
event_sequence : list of tuples (etype, dict())
A sequence of events to perform. The sequence is a list of tuples
where the first element of the tuple is an etype (e.g., 'onmove',
'press', etc.), and the second element of the tuple is a dictionary of
the arguments for the event (e.g., xdata=5, key='shift', etc.).
expected_result : list of vertices (xdata, ydata)
The list of vertices that are expected to result from the event
sequence.
selections_count : int
Wait for the tool to call its `onselect` function `selections_count`
times, before comparing the result to the `expected_result`
**kwargs
Keyword arguments are passed to PolygonSelector.
"""
ax = get_ax()
onselect = mock.Mock(spec=noop, return_value=None)
tool = widgets.PolygonSelector(ax, onselect, **kwargs)
for (etype, event_args) in event_sequence:
do_event(tool, etype, **event_args)
assert onselect.call_count == selections_count
assert onselect.call_args == ((expected_result, ), {})
def polygon_place_vertex(xdata, ydata):
return [('onmove', dict(xdata=xdata, ydata=ydata)),
('press', dict(xdata=xdata, ydata=ydata)),
('release', dict(xdata=xdata, ydata=ydata))]
def polygon_remove_vertex(xdata, ydata):
return [('onmove', dict(xdata=xdata, ydata=ydata)),
('press', dict(xdata=xdata, ydata=ydata, button=3)),
('release', dict(xdata=xdata, ydata=ydata, button=3))]
@pytest.mark.parametrize('draw_bounding_box', [False, True])
def test_polygon_selector(draw_bounding_box):
check_selector = functools.partial(
check_polygon_selector, draw_bounding_box=draw_bounding_box)
# Simple polygon
expected_result = [(50, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
]
check_selector(event_sequence, expected_result, 1)
# Move first vertex before completing the polygon.
expected_result = [(75, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
('on_key_press', dict(key='control')),
('onmove', dict(xdata=50, ydata=50)),
('press', dict(xdata=50, ydata=50)),
('onmove', dict(xdata=75, ydata=50)),
('release', dict(xdata=75, ydata=50)),
('on_key_release', dict(key='control')),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(75, 50),
]
check_selector(event_sequence, expected_result, 1)
# Move first two vertices at once before completing the polygon.
expected_result = [(50, 75), (150, 75), (50, 150)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
('on_key_press', dict(key='shift')),
('onmove', dict(xdata=100, ydata=100)),
('press', dict(xdata=100, ydata=100)),
('onmove', dict(xdata=100, ydata=125)),
('release', dict(xdata=100, ydata=125)),
('on_key_release', dict(key='shift')),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 75),
]
check_selector(event_sequence, expected_result, 1)
# Move first vertex after completing the polygon.
expected_result = [(75, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
('onmove', dict(xdata=50, ydata=50)),
('press', dict(xdata=50, ydata=50)),
('onmove', dict(xdata=75, ydata=50)),
('release', dict(xdata=75, ydata=50)),
]
check_selector(event_sequence, expected_result, 2)
# Move all vertices after completing the polygon.
expected_result = [(75, 75), (175, 75), (75, 175)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
('on_key_press', dict(key='shift')),
('onmove', dict(xdata=100, ydata=100)),
('press', dict(xdata=100, ydata=100)),
('onmove', dict(xdata=125, ydata=125)),
('release', dict(xdata=125, ydata=125)),
('on_key_release', dict(key='shift')),
]
check_selector(event_sequence, expected_result, 2)
# Try to move a vertex and move all before placing any vertices.
expected_result = [(50, 50), (150, 50), (50, 150)]
event_sequence = [
('on_key_press', dict(key='control')),
('onmove', dict(xdata=100, ydata=100)),
('press', dict(xdata=100, ydata=100)),
('onmove', dict(xdata=125, ydata=125)),
('release', dict(xdata=125, ydata=125)),
('on_key_release', dict(key='control')),
('on_key_press', dict(key='shift')),
('onmove', dict(xdata=100, ydata=100)),
('press', dict(xdata=100, ydata=100)),
('onmove', dict(xdata=125, ydata=125)),
('release', dict(xdata=125, ydata=125)),
('on_key_release', dict(key='shift')),
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
]
check_selector(event_sequence, expected_result, 1)
# Try to place vertex out-of-bounds, then reset, and start a new polygon.
expected_result = [(50, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(250, 50),
('on_key_press', dict(key='escape')),
('on_key_release', dict(key='escape')),
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
]
check_selector(event_sequence, expected_result, 1)
@pytest.mark.parametrize('draw_bounding_box', [False, True])
def test_polygon_selector_set_props_handle_props(ax, draw_bounding_box):
tool = widgets.PolygonSelector(ax, onselect=noop,
props=dict(color='b', alpha=0.2),
handle_props=dict(alpha=0.5),
draw_bounding_box=draw_bounding_box)
event_sequence = [
*polygon_place_vertex(50, 50),
*polygon_place_vertex(150, 50),
*polygon_place_vertex(50, 150),
*polygon_place_vertex(50, 50),
]
for (etype, event_args) in event_sequence:
do_event(tool, etype, **event_args)
artist = tool._selection_artist
assert artist.get_color() == 'b'
assert artist.get_alpha() == 0.2
tool.set_props(color='r', alpha=0.3)
assert artist.get_color() == 'r'
assert artist.get_alpha() == 0.3
for artist in tool._handles_artists:
assert artist.get_color() == 'b'
assert artist.get_alpha() == 0.5
tool.set_handle_props(color='r', alpha=0.3)
for artist in tool._handles_artists:
assert artist.get_color() == 'r'
assert artist.get_alpha() == 0.3
@check_figures_equal()
def test_rect_visibility(fig_test, fig_ref):
# Check that requesting an invisible selector makes it invisible
ax_test = fig_test.subplots()
_ = fig_ref.subplots()
tool = widgets.RectangleSelector(ax_test, onselect=noop,
props={'visible': False})
tool.extents = (0.2, 0.8, 0.3, 0.7)
# Change the order that the extra point is inserted in
@pytest.mark.parametrize('idx', [1, 2, 3])
@pytest.mark.parametrize('draw_bounding_box', [False, True])
def test_polygon_selector_remove(idx, draw_bounding_box):
verts = [(50, 50), (150, 50), (50, 150)]
event_sequence = [polygon_place_vertex(*verts[0]),
polygon_place_vertex(*verts[1]),
polygon_place_vertex(*verts[2]),
# Finish the polygon
polygon_place_vertex(*verts[0])]
# Add an extra point
event_sequence.insert(idx, polygon_place_vertex(200, 200))
# Remove the extra point
event_sequence.append(polygon_remove_vertex(200, 200))
# Flatten list of lists
event_sequence = sum(event_sequence, [])
check_polygon_selector(event_sequence, verts, 2,
draw_bounding_box=draw_bounding_box)
@pytest.mark.parametrize('draw_bounding_box', [False, True])
def test_polygon_selector_remove_first_point(draw_bounding_box):
verts = [(50, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(*verts[0]),
*polygon_place_vertex(*verts[1]),
*polygon_place_vertex(*verts[2]),
*polygon_place_vertex(*verts[0]),
*polygon_remove_vertex(*verts[0]),
]
check_polygon_selector(event_sequence, verts[1:], 2,
draw_bounding_box=draw_bounding_box)
@pytest.mark.parametrize('draw_bounding_box', [False, True])
def test_polygon_selector_redraw(ax, draw_bounding_box):
verts = [(50, 50), (150, 50), (50, 150)]
event_sequence = [
*polygon_place_vertex(*verts[0]),
*polygon_place_vertex(*verts[1]),
*polygon_place_vertex(*verts[2]),
*polygon_place_vertex(*verts[0]),
# Polygon completed, now remove first two verts.
*polygon_remove_vertex(*verts[1]),
*polygon_remove_vertex(*verts[2]),
# At this point the tool should be reset so we can add more vertices.
*polygon_place_vertex(*verts[1]),
]
tool = widgets.PolygonSelector(ax, onselect=noop,
draw_bounding_box=draw_bounding_box)
for (etype, event_args) in event_sequence:
do_event(tool, etype, **event_args)
# After removing two verts, only one remains, and the
# selector should be automatically resete
assert tool.verts == verts[0:2]
@pytest.mark.parametrize('draw_bounding_box', [False, True])
@check_figures_equal(extensions=['png'])
def test_polygon_selector_verts_setter(fig_test, fig_ref, draw_bounding_box):
verts = [(0.1, 0.4), (0.5, 0.9), (0.3, 0.2)]
ax_test = fig_test.add_subplot()
tool_test = widgets.PolygonSelector(
ax_test, onselect=noop, draw_bounding_box=draw_bounding_box)
tool_test.verts = verts
assert tool_test.verts == verts
ax_ref = fig_ref.add_subplot()
tool_ref = widgets.PolygonSelector(
ax_ref, onselect=noop, draw_bounding_box=draw_bounding_box)
event_sequence = [
*polygon_place_vertex(*verts[0]),
*polygon_place_vertex(*verts[1]),
*polygon_place_vertex(*verts[2]),
*polygon_place_vertex(*verts[0]),
]
for (etype, event_args) in event_sequence:
do_event(tool_ref, etype, **event_args)
def test_polygon_selector_box(ax):
# Create a diamond shape
verts = [(20, 0), (0, 20), (20, 40), (40, 20)]
event_sequence = [
*polygon_place_vertex(*verts[0]),
*polygon_place_vertex(*verts[1]),
*polygon_place_vertex(*verts[2]),
*polygon_place_vertex(*verts[3]),
*polygon_place_vertex(*verts[0]),
]
# Create selector
tool = widgets.PolygonSelector(ax, onselect=noop, draw_bounding_box=True)
for (etype, event_args) in event_sequence:
do_event(tool, etype, **event_args)
# In order to trigger the correct callbacks, trigger events on the canvas
# instead of the individual tools
t = ax.transData
canvas = ax.figure.canvas
# Scale to half size using the top right corner of the bounding box
MouseEvent(
"button_press_event", canvas, *t.transform((40, 40)), 1)._process()
MouseEvent(
"motion_notify_event", canvas, *t.transform((20, 20)))._process()
MouseEvent(
"button_release_event", canvas, *t.transform((20, 20)), 1)._process()
np.testing.assert_allclose(
tool.verts, [(10, 0), (0, 10), (10, 20), (20, 10)])
# Move using the center of the bounding box
MouseEvent(
"button_press_event", canvas, *t.transform((10, 10)), 1)._process()
MouseEvent(
"motion_notify_event", canvas, *t.transform((30, 30)))._process()
MouseEvent(
"button_release_event", canvas, *t.transform((30, 30)), 1)._process()
np.testing.assert_allclose(
tool.verts, [(30, 20), (20, 30), (30, 40), (40, 30)])
# Remove a point from the polygon and check that the box extents update
np.testing.assert_allclose(
tool._box.extents, (20.0, 40.0, 20.0, 40.0))
MouseEvent(
"button_press_event", canvas, *t.transform((30, 20)), 3)._process()
MouseEvent(
"button_release_event", canvas, *t.transform((30, 20)), 3)._process()
np.testing.assert_allclose(
tool.verts, [(20, 30), (30, 40), (40, 30)])
np.testing.assert_allclose(
tool._box.extents, (20.0, 40.0, 30.0, 40.0))
@pytest.mark.parametrize("horizOn", [False, True])
@pytest.mark.parametrize("vertOn", [False, True])
def test_MultiCursor(horizOn, vertOn):
(ax1, ax3) = plt.figure().subplots(2, sharex=True)
ax2 = plt.figure().subplots()
# useblit=false to avoid having to draw the figure to cache the renderer
multi = widgets.MultiCursor(
None, (ax1, ax2), useblit=False, horizOn=horizOn, vertOn=vertOn
)
# Only two of the axes should have a line drawn on them.
assert len(multi.vlines) == (2 if vertOn else 0)
assert len(multi.hlines) == (2 if horizOn else 0)
# mock a motion_notify_event
# Can't use `do_event` as that helper requires the widget
# to have a single .ax attribute.
event = mock_event(ax1, xdata=.5, ydata=.25)
multi.onmove(event)
# the lines in the first two ax should both move
for l in multi.vlines:
assert l.get_xdata() == (.5, .5)
for l in multi.hlines:
assert l.get_ydata() == (.25, .25)
# test a move event in an Axes not part of the MultiCursor
# the lines in ax1 and ax2 should not have moved.
event = mock_event(ax3, xdata=.75, ydata=.75)
multi.onmove(event)
for l in multi.vlines:
assert l.get_xdata() == (.5, .5)
for l in multi.hlines:
assert l.get_ydata() == (.25, .25)