def test_int_slider(document, comm):
slider = IntSlider(start=0, end=3, value=1, name='Slider')
widget = slider.get_root(document, comm=comm)
assert isinstance(widget, slider._widget_type)
assert widget.title == 'Slider'
assert widget.step == 1
assert widget.start == 0
assert widget.end == 3
assert widget.value == 1
slider._process_events({'value': 2})
assert slider.value == 2
slider._process_events({'value_throttled': 2})
assert slider.value_throttled == 2
slider.value = 0
assert widget.value == 0
# Testing that value matches start value if value not set.
slider_2 = IntSlider(start=1, end=3, name='Slider_2')
widget_2 = slider_2.get_root(document, comm=comm)
assert widget_2.value == widget_2.start
# Testing throttled mode
with config.set(throttled=True):
slider._process_events({'value': 1})
assert slider.value == 0 # no change
slider._process_events({'value_throttled': 1})
assert slider.value == 1
slider.value = 2
assert widget.value == 2
def test_bind_two_widgets_as_kwargs():
widget = IntSlider(value=0)
widget2 = IntSlider(value=1)
def add(value, value2):
return value + value2
bound_function = bind(add, value=widget, value2=widget2)
assert bound_function() == 1
widget.value = 1
assert bound_function() == 2
widget2.value = 2
assert bound_function() == 3
with pytest.raises(TypeError):
bound_function(1, 2)
assert bound_function(value2=5) == 6
def test_int_slider(document, comm):
slider = IntSlider(start=0, end=3, value=1, name='Slider')
widget = slider.get_root(document, comm=comm)
assert isinstance(widget, slider._widget_type)
assert widget.title == 'Slider'
assert widget.step == 1
assert widget.start == 0
assert widget.end == 3
assert widget.value == 1
slider._comm_change({'value': 2})
assert slider.value == 2
slider.value = 0
assert widget.value == 0
# Testing that value matches start value if value not set.
slider_2 = IntSlider(start=1, end=3, name='Slider_2')
widget_2 = slider_2.get_root(document, comm=comm)
assert widget_2.value == widget_2.start
def test_bind_two_widget_arg_with_remaining_arg():
widget = IntSlider(value=0)
def add(value, value2):
return value + value2
bound_function = bind(add, widget)
assert bound_function(1) == 1
widget.value = 1
assert bound_function(2) == 3
assert bound_function(value2=3) == 4
def test_bind_widget_to_kwarg():
widget = IntSlider(value=0)
def add1(value):
return value + 1
bound_function = bind(add1, value=widget)
assert bound_function() == 1
widget.value = 1
assert bound_function() == 2
with pytest.raises(TypeError):
bound_function(1)
def test_bind_bound_function_to_kwarg():
widget = IntSlider(value=1)
def add1(value):
return value + 1
def divide(divisor=2, value=0):
return value / divisor
bound_function = bind(divide, value=bind(add1, widget.param.value))
assert bound_function() == 1
widget.value = 3
assert bound_function() == 2
def test_int_slider(document, comm):
slider = IntSlider(start=0, end=3, value=1, name='Slider')
widget = slider.get_root(document, comm=comm)
assert isinstance(widget, slider._widget_type)
assert widget.title == 'Slider'
assert widget.step == 1
assert widget.start == 0
assert widget.end == 3
assert widget.value == 1
slider._comm_change({'value': 2})
assert slider.value == 2
slider.value = 0
assert widget.value == 0
def test_int_slider(document, comm):
slider = IntSlider(start=0, end=3, value=1, name='Slider')
box = slider._get_model(document, comm=comm)
assert isinstance(box, WidgetBox)
widget = box.children[0]
assert isinstance(widget, slider._widget_type)
assert widget.title == 'Slider'
assert widget.step == 1
assert widget.start == 0
assert widget.end == 3
assert widget.value == 1
slider._comm_change({'value': 2})
assert slider.value == 2
slider.value = 0
assert widget.value == 0
def test_gridspec_stretch_with_replacement_pane(document, comm):
slider = IntSlider(start=0, end=2)
@depends(slider)
def div(value):
return Div(text=str(value))
gspec = GridSpec(sizing_mode='stretch_width')
gspec[0, 0:2] = Div()
gspec[1, 2] = div
model = gspec.get_root(document, comm=comm)
((div1, _, _, _, _), (row, _, _, _, _)) = model.children
div2 = row.children[0]
assert div1.sizing_mode == 'stretch_width'
assert div1.height == 300
assert div2.sizing_mode == 'stretch_width'
assert div2.height == 300
slider.value = 1
assert row.children[0] is not div2
assert row.children[0].sizing_mode == 'stretch_width'
assert row.children[0].height == 300
def test_embed_merged_sliders(document, comm):
s1 = IntSlider(name='A', start=1, end=10, value=1)
t1 = StaticText()
s1.param.watch(lambda event: setattr(t1, 'value', event.new), 'value')
s2 = IntSlider(name='A', start=1, end=10, value=1)
t2 = StaticText()
s2.param.watch(lambda event: setattr(t2, 'value', event.new), 'value')
panel = Row(s1, s2, t1, t2)
with config.set(embed=True):
model = panel.get_root(document, comm)
state_model = embed_state(panel, model, document)
assert len(document.roots) == 2
assert model is document.roots[0]
cbs = list(model.select({'type': CustomJS}))
assert len(cbs) == 5
ref1, ref2 = model.children[2].ref['id'], model.children[3].ref['id']
state0 = json.loads(state_model.state[0]['content'])['events']
assert state0 == [{
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref1
},
"new": "1"
}, {
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref2
},
"new": "1"
}]
state1 = json.loads(state_model.state[1]['content'])['events']
assert state1 == [{
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref1
},
"new": "5"
}, {
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref2
},
"new": "5"
}]
state2 = json.loads(state_model.state[2]['content'])['events']
assert state2 == [{
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref1
},
"new": "9"
}, {
"attr": "text",
"kind": "ModelChanged",
"model": {
"id": ref2
},
"new": "9"
}]
def test_params_identical_names(self):
a = IntSlider(name="Name")
b = IntSlider(name="Name")
p = Params(parameters=[a.param.value, b.param.value])
assert len(p.hashkey) == 3 # the two widgets + _memoize_key
def test_param_value_if_widget():
widget = IntSlider()
assert param_value_if_widget(widget) is widget.param.value
import numpy as np
import panel as pn
from panel.widgets import IntSlider
from ipywidgets import AppLayout, Image, Layout, Box, widgets # pip install ipywidgets
from IPython import display
img_path = './project/project02/data/dog2.jpg'
src = cv2.imread(img_path)
gray = cv2.cvtColor(src, cv2.COLOR_BGR2GRAY)
#Component 선언
IntSlider_Threshold = IntSlider(value=1,
min=1,
max=50,
step=1,
description='Threshold: ',
disabled=False,
continuous_update=False,
orientation='horizontal',
readout=True,
readout_format='d')
def layout(header, left, right):
layout = AppLayout(header=header,
left_sidebar=left,
center=None,
right_sidebar=right)
return layout
wImg_original = Image(layout=Layout(border="solid"), width="45%")