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Rectangle Selector Upgrade #3937

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Merged
merged 48 commits into from
Sep 8, 2015
Merged

Rectangle Selector Upgrade #3937

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2ed0d49
Store prev event to handle out of bounds selections
blink1073 Dec 19, 2014
f8eefe6
Upgrade RectangleSelector with ToolHandles and add Ellipse
blink1073 Dec 19, 2014
7f044cf
Add toolhandles class
blink1073 Dec 19, 2014
f450df6
Add test using tool handles
blink1073 Dec 19, 2014
79294e0
Add a helper function to get axes
blink1073 Dec 19, 2014
fd264a2
Do not allow extents outside the image and add a path property
blink1073 Dec 19, 2014
438715f
Finish rectangle handle tests and add ellipse test with key modifiers
blink1073 Dec 19, 2014
e560713
Rename path property to geometry and return consistent results.
blink1073 Dec 20, 2014
5025ba2
Add geometry tests.
blink1073 Dec 20, 2014
b118294
Remove extra line.
blink1073 Dec 20, 2014
b15cf12
Refactor the event handling methods
blink1073 Dec 20, 2014
e96fe81
Update rectangle logic to include '_moving'
blink1073 Dec 20, 2014
240cfa2
Clean up event handling and add a state attribute
blink1073 Dec 20, 2014
7915db8
Add state handling to onmove
blink1073 Dec 20, 2014
f7a9222
More "state" refactoring
blink1073 Dec 20, 2014
7c04e25
Add key release and continue refactoring state handling
blink1073 Dec 20, 2014
cf491db
Recreate the _get_data method and more event refactoring
blink1073 Dec 20, 2014
7ece2fa
Refactor the event creator to call the private methods
blink1073 Dec 20, 2014
59ccd81
Preserve existing api for event handler functions
blink1073 Dec 21, 2014
a033e8e
Preserve event return values
blink1073 Dec 24, 2014
2923f97
Add cleanup to tests and fix default rect prop
blink1073 Dec 24, 2014
6549538
Pep8 fixes
blink1073 Dec 24, 2014
491276e
Fix bug in SpanSelector when blit=True
blink1073 Jan 17, 2015
744308c
Clear events after valid release
blink1073 Jan 18, 2015
a7518b3
Do not attempt to draw artists if ax is invisible
blink1073 Jan 18, 2015
77dc52b
Ignore events when axes are invisible
blink1073 Jan 18, 2015
48ebf30
Fix span selector onmove when we exit axes
blink1073 Feb 21, 2015
3ffd7c0
Restore previous behaviour and allow escape to clear the current sele…
blink1073 Aug 19, 2015
e802991
Fix failing tests
blink1073 Aug 19, 2015
af6e1b4
Fix handling of center handle
blink1073 Aug 20, 2015
f5666a4
Remove debug print
blink1073 Aug 20, 2015
545a727
STY: PEP8
tacaswell Aug 22, 2015
feb58fe
FIX: do not call draw_idle if blitting
tacaswell Aug 22, 2015
7bd67d2
DOC: make rectangle demo use handles
tacaswell Aug 22, 2015
b60a84d
Add docstring for EllipseSelector and use print() statements
blink1073 Aug 22, 2015
840a671
Revert to old draw types and add docs about key modifiers
blink1073 Aug 23, 2015
2a11f5f
Revert change to the example
blink1073 Aug 23, 2015
8da7985
Remove extra draw_idle trigger
blink1073 Aug 23, 2015
cfe4df1
Update the docstring
blink1073 Aug 23, 2015
bc225b6
Remove extraneous doc
blink1073 Aug 23, 2015
59145af
Fix failing test
blink1073 Aug 23, 2015
d491ac9
Update docstring, use self.useblit, use space for move
blink1073 Aug 25, 2015
8e8e473
Use new state_modifier_keys dictionary
blink1073 Aug 26, 2015
2ed0419
Clear the active handle when invisible
blink1073 Aug 26, 2015
d5b5d86
Collapse the shape on improper draw to prevent showing the previous s…
blink1073 Aug 26, 2015
87ab199
Fix test using 'alt' key
blink1073 Aug 26, 2015
9eaae32
Clean up and add more docs
blink1073 Sep 1, 2015
819804f
Make on_key_release use the state_modifier_keys
blink1073 Sep 1, 2015
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3 changes: 2 additions & 1 deletion examples/widgets/rectangle_selector.py
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ def toggle_selector(event):
drawtype='box', useblit=True,
button=[1, 3], # don't use middle button
minspanx=5, minspany=5,
spancoords='pixels')
spancoords='pixels',
interactive=True)
plt.connect('key_press_event', toggle_selector)
plt.show()
163 changes: 126 additions & 37 deletions lib/matplotlib/tests/test_widgets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,18 @@
import matplotlib.pyplot as plt
from matplotlib.testing.decorators import cleanup

from numpy.testing import assert_allclose

def get_event(ax, button=1, xdata=0, ydata=0, key=None, step=1):

def get_ax():
fig, ax = plt.subplots(1, 1)
ax.plot([0, 200], [0, 200])
ax.set_aspect(1.0)
ax.figure.canvas.draw()
return ax


def do_event(tool, etype, button=1, xdata=0, ydata=0, key=None, step=1):
"""
*name*
the event name
Expand Down Expand Up @@ -51,6 +61,7 @@ def get_event(ax, button=1, xdata=0, ydata=0, key=None, step=1):
"""
event = mock.Mock()
event.button = button
ax = tool.ax
event.x, event.y = ax.transData.transform([(xdata, ydata),
(xdata, ydata)])[00]
event.xdata, event.ydata = xdata, ydata
Expand All @@ -60,32 +71,33 @@ def get_event(ax, button=1, xdata=0, ydata=0, key=None, step=1):
event.step = step
event.guiEvent = None
event.name = 'Custom'
return event

func = getattr(tool, etype)
func(event)


@cleanup
def check_rectangle(**kwargs):
fig, ax = plt.subplots(1, 1)
ax.plot([0, 200], [0, 200])
ax.figure.canvas.draw()
ax = get_ax()

def onselect(epress, erelease):
ax._got_onselect = True
assert epress.xdata == 100
assert epress.ydata == 100
assert erelease.xdata == 200
assert erelease.ydata == 200
assert erelease.xdata == 199
assert erelease.ydata == 199

tool = widgets.RectangleSelector(ax, onselect, **kwargs)
event = get_event(ax, xdata=100, ydata=100, button=1)
tool.press(event)

event = get_event(ax, xdata=125, ydata=125, button=1)
tool.onmove(event)
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
event = get_event(ax, xdata=250, ydata=250, button=1)
tool.release(event)
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)

assert ax._got_onselect

Expand All @@ -99,11 +111,101 @@ def test_rectangle_selector():
check_rectangle(rectprops=dict(fill=True))


@cleanup
def test_ellipse():
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These need @cleanup decorators, I suspect that is related to the seemingly un-related failures as the global state of pyplot leaks across tests.

"""For ellipse, test out the key modifiers"""
ax = get_ax()

def onselect(epress, erelease):
pass

tool = widgets.EllipseSelector(ax, onselect=onselect,
maxdist=10, interactive=True)
tool.extents = (100, 150, 100, 150)

# drag the rectangle
do_event(tool, 'press', xdata=10, ydata=10, button=1,
key=' ')
do_event(tool, 'onmove', xdata=30, ydata=30, button=1)
do_event(tool, 'release', xdata=30, ydata=30, button=1)
assert tool.extents == (120, 170, 120, 170), tool.extents

# create from center
do_event(tool, 'on_key_press', xdata=100, ydata=100, button=1,
key='control')
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=125, ydata=125, button=1)
do_event(tool, 'on_key_release', xdata=100, ydata=100, button=1,
key='control')
assert tool.extents == (75, 125, 75, 125), tool.extents

# create a square
do_event(tool, 'on_key_press', xdata=10, ydata=10, button=1,
key='shift')
do_event(tool, 'press', xdata=10, ydata=10, button=1)
do_event(tool, 'onmove', xdata=35, ydata=30, button=1)
do_event(tool, 'release', xdata=35, ydata=30, button=1)
do_event(tool, 'on_key_release', xdata=10, ydata=10, button=1,
key='shift')
extents = [int(e) for e in tool.extents]
assert extents == [10, 35, 10, 34]

# create a square from center
do_event(tool, 'on_key_press', xdata=100, ydata=100, button=1,
key='ctrl+shift')
do_event(tool, 'press', xdata=100, ydata=100, button=1)
do_event(tool, 'onmove', xdata=125, ydata=130, button=1)
do_event(tool, 'release', xdata=125, ydata=130, button=1)
do_event(tool, 'on_key_release', xdata=100, ydata=100, button=1,
key='ctrl+shift')
extents = [int(e) for e in tool.extents]
assert extents == [70, 129, 70, 130], extents

assert tool.geometry.shape == (2, 74)
assert_allclose(tool.geometry[:, 0], [70., 100])


@cleanup
def test_rectangle_handles():
ax = get_ax()

def onselect(epress, erelease):
pass

tool = widgets.RectangleSelector(ax, onselect=onselect,
maxdist=10, interactive=True)
tool.extents = (100, 150, 100, 150)

assert tool.corners == (
(100, 150, 150, 100), (100, 100, 150, 150))
assert tool.extents == (100, 150, 100, 150)
assert 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
do_event(tool, 'press', xdata=100, ydata=100)
do_event(tool, 'onmove', xdata=120, ydata=120)
do_event(tool, 'release', xdata=120, ydata=120)
assert tool.extents == (120, 150, 120, 150)

# grab the center and move it
do_event(tool, 'press', xdata=132, ydata=132)
do_event(tool, 'onmove', xdata=120, ydata=120)
do_event(tool, 'release', xdata=120, ydata=120)
assert tool.extents == (108, 138, 108, 138)

# create a new rectangle
do_event(tool, 'press', xdata=10, ydata=10)
do_event(tool, 'onmove', xdata=100, ydata=100)
do_event(tool, 'release', xdata=100, ydata=100)
assert tool.extents == (10, 100, 10, 100)


@cleanup
def check_span(*args, **kwargs):
fig, ax = plt.subplots(1, 1)
ax.plot([0, 200], [0, 200])
ax.figure.canvas.draw()
ax = get_ax()

def onselect(vmin, vmax):
ax._got_onselect = True
Expand All @@ -119,14 +221,9 @@ def onmove(vmin, vmax):
kwargs['onmove_callback'] = onmove

tool = widgets.SpanSelector(ax, onselect, *args, **kwargs)
event = get_event(ax, xdata=100, ydata=100, button=1)
tool.press(event)

event = get_event(ax, xdata=125, ydata=125, button=1)
tool.onmove(event)

event = get_event(ax, xdata=150, ydata=150, button=1)
tool.release(event)
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)

assert ax._got_onselect

Expand All @@ -142,24 +239,16 @@ def test_span_selector():

@cleanup
def check_lasso_selector(**kwargs):
fig, ax = plt.subplots(1, 1)
ax = plt.gca()
ax.plot([0, 200], [0, 200])
ax.figure.canvas.draw()
ax = get_ax()

def onselect(verts):
ax._got_onselect = True
assert verts == [(100, 100), (125, 125), (150, 150)]

tool = widgets.LassoSelector(ax, onselect, **kwargs)
event = get_event(ax, xdata=100, ydata=100, button=1)
tool.press(event)

event = get_event(ax, xdata=125, ydata=125, button=1)
tool.onmove(event)

event = get_event(ax, xdata=150, ydata=150, button=1)
tool.release(event)
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)

assert ax._got_onselect

Expand Down
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