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added slider value labels and fixed their layout a little.

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This commit is contained in:
sccolbert
2009-11-04 21:03:22 +01:00
parent eed8d6f23f
commit 186eee357a
1 changed files with 37 additions and 24 deletions
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scikits/image/io/_plugins/qt_plugin.py
+37 -24
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@@ -79,15 +79,29 @@ else:
This allows you to create large groups of sliders in a loop,
but still keep track of the individual events'''
def __init__(self, name, callback):
def __init__(self, name, callback, conv_fac):
QSlider.__init__(self)
self.name = name
self.callback = callback
self.conv_fac = conv_fac
self.name_label = QLabel()
self.name_label.setText(self.name)
self.name_label.setAlignment(QtCore.Qt.AlignCenter)
self.value_label = QLabel()
self.value_label.setText('')
self.value_label.setAlignment(QtCore.Qt.AlignCenter)
# bind this to the valueChanged signal of the slider
def i_changed(self, val):
val = self.conv_val()
self.value_label.setText(str(val)[:4])
self.callback(self.name, val)
def conv_val(self):
return self.value() * self.conv_fac
class NSliderBlock(QWidget):
'''Creates a block of n sliders with ranges
@@ -112,33 +126,33 @@ else:
raise ValueError('not enough or too many ranges supplied')
self.callback = callback
# each key will give you
self.sliders = {}
self.slider_names = []
self.layout = QtGui.QGridLayout(self)
for i in range(n):
params = ranges_labels[i]
if len(params) != 4:
if len(params) != 5:
raise ValueError('Tuples must be length 4')
name = params[3]
slider_name = QLabel()
slider_name.setText(name)
slider_name.setAlignment(QtCore.Qt.AlignCenter)
self.slider_names.append(slider_name)
conv_fac = params[4]
self.layout.addWidget(slider_name, 0, i)
slider = IntelligentSlider(name, self.callback)
slider = IntelligentSlider(name, self.callback, conv_fac)
slider.setMinimum(params[0])
slider.setMaximum(params[1])
slider.setValue(params[2])
slider.valueChanged.connect(slider.i_changed)
self.sliders[name] = slider
self.layout.addWidget(slider, 1, i)
self.layout.addWidget(slider.name_label, 0, i)
self.layout.addWidget(slider, 1, i, QtCore.Qt.AlignCenter)
self.layout.addWidget(slider.value_label, 2, i)
self.layout.setColumnMinimumWidth(i, 50)
def set_sliders(self, vals):
# vals should a dict to of slider names and set vals
@@ -184,15 +198,15 @@ else:
self.rgb_add.toggled.connect(self.rgb_radio_changed)
# additive sliders
self.rgb_add_sliders = NSliderBlock(3, [(-255, 255, 0, 'R'),
(-255, 255, 0, 'G'),
(-255, 255, 0, 'B')],
self.rgb_add_sliders = NSliderBlock(3, [(-255, 255, 0, 'R', 1),
(-255, 255, 0, 'G', 1),
(-255, 255, 0, 'B', 1)],
self.rgb_add_changed)
# multiplicative sliders
self.rgb_mul_sliders = NSliderBlock(3, [(0, 1000, 500, 'R'),
(0, 1000, 500, 'G'),
(0, 1000, 500, 'B')],
self.rgb_mul_sliders = NSliderBlock(3, [(0, 1000, 500, 'R', .002),
(0, 1000, 500, 'G', .002),
(0, 1000, 500, 'B', .002)],
self.rgb_mul_changed)
# layout
@@ -208,8 +222,8 @@ else:
#---------------------------------------------------------------
# sliders
self.bright_sliders = NSliderBlock(2, [(-255, 255, 0, 'OFF'),
(0, 1000, 500, 'FAC')],
self.bright_sliders = NSliderBlock(2, [(-255, 255, 0, '+', 1),
(0, 1000, 500, 'x', 0.002)],
self.bright_changed)
# layout
@@ -260,7 +274,6 @@ else:
def rgb_mul_changed(self, name, val):
if not self.rgb_mul.isChecked():
return
val = val/500.
if name == 'R':
self.mixer.multiply(self.mixer.RED, val)
elif name == 'G':
@@ -274,8 +287,8 @@ else:
def bright_changed(self, name, val):
# doesnt matter which slider changed we need both
# values
factor = self.bright_sliders.sliders['FAC'].value() / 500.
offset = self.bright_sliders.sliders['OFF'].value()
factor = self.bright_sliders.sliders['x'].conv_val()
offset = self.bright_sliders.sliders['+'].conv_val()
self.mixer.brightness(offset, factor)
self.update()
@@ -283,7 +296,7 @@ else:
def reset_sliders(self):
self.rgb_add_sliders.set_sliders({'R': 0, 'G': 0, 'B': 0})
self.rgb_mul_sliders.set_sliders({'R': 500, 'G': 500, 'B': 500})
self.bright_sliders.set_sliders({'OFF': 0, 'FAC': 500})
self.bright_sliders.set_sliders({'+': 0, 'x': 500})
def combo_box_changed(self, index):
self.reset_sliders()