def _update_widgets(self):
_BaseColorsWidget._update_widgets(self)
if self.update_colors_in_slider:
color = self._model.color
h, s, v = self._get_color_params(color)
self._widget_1.set_gradient_stops(
[(x / 100, QColor.fromHsvF(h, x / 100., v)) for x in range(101)])
self._widget_2.set_gradient_stops(
[(x / 100, QColor.fromHsvF(h, s, x / 100.)) for x in range(101)])
def _update_widgets(self):
_BaseColorsWidget._update_widgets(self)
if self.update_colors_in_slider:
color = self._model.color
h, s, v = self._get_color_params(color)
self._widget_1.set_gradient_stops([
(x / 100, QColor.fromHsvF(h, x / 100., v)) for x in range(101)
])
self._widget_2.set_gradient_stops([
(x / 100, QColor.fromHsvF(h, s, x / 100.)) for x in range(101)
])
def test_hsv_widget(qtapi, hsv_widget):
from pyvmmonitor_qt.qt.QtGui import QColor
assert hsv_widget.model is not None
hsv_widget.model.color = QColor.fromHsvF(0.5, 0.5, 0.5)
assert hsv_widget._hue_widget._slider.value == 360 * .5
hsv_widget.model.color = QColor.fromHsvF(0.1, 0.5, 0.5)
assert hsv_widget._hue_widget._slider.value == 360 * .1
hsv_widget._hue_widget._slider.value = 360 * .4
assert hsv_widget.model.color == QColor.fromHsvF(0.4, 0.5, 0.5)
def test_hsv_widget(qtapi, hsv_widget):
from pyvmmonitor_qt.qt.QtGui import QColor
assert hsv_widget.model is not None
hsv_widget.model.color = QColor.fromHsvF(0.5, 0.5, 0.5)
assert hsv_widget._hue_widget._slider.value == 360 * .5
hsv_widget.model.color = QColor.fromHsvF(0.1, 0.5, 0.5)
assert hsv_widget._hue_widget._slider.value == 360 * .1
hsv_widget._hue_widget._slider.value = 360 * .4
assert hsv_widget.model.color == QColor.fromHsvF(0.4, 0.5, 0.5)
def _create_hue_pixmap(self):
'''
Create a simple hue pixmap where we change the hue in a conical gradient.
'''
from pyvmmonitor_qt.qt.QtGui import QPixmap
from pyvmmonitor_qt.qt.QtGui import QBrush
from pyvmmonitor_qt.qt_utils import painter_on
from pyvmmonitor_qt.qt.QtGui import QConicalGradient
stops = 360
delta = 1.0 / stops
v = 0.0
size = self._wheel_size
pixmap = QPixmap(size, size)
pixmap.fill(Qt.transparent)
degrees = 360
gradient = QConicalGradient(size / 2, size / 2, degrees)
for _stop in range(stops):
v += delta
# we do 1.0 - v to have blue on top (just a matter of taste really).
color = QColor.fromHsvF(1.0 - v, 1.0, 1.0)
gradient.setColorAt(v, color)
with painter_on(pixmap, True) as painter:
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(0, 0, size, size)
return pixmap
def _lighten_with_alpha(self, hue_pixmap):
from pyvmmonitor_qt.qt.QtGui import QPixmap
from pyvmmonitor_qt.qt_utils import painter_on
from pyvmmonitor_qt.qt.QtGui import QRadialGradient
from pyvmmonitor_qt.qt.QtGui import QBrush
size = self._wheel_size
# Create a gradient to lighten up the center
alpha_channel_pixmap = QPixmap(size, size)
alpha_channel_pixmap.fill(Qt.transparent)
radius = (size / 2) - 4
rg = QRadialGradient(size / 2, size / 2, radius, size / 2, size / 2)
delta = 0.1
v = 0.0
for _ in range(10):
v += delta
rg.setColorAt(v, QColor.fromHsvF(0, 0, 1.0, 1.0 - v))
with painter_on(alpha_channel_pixmap, True) as painter:
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(rg))
painter.drawEllipse(0, 0, size, size)
with painter_on(hue_pixmap, True) as painter:
# Draw the alpha channel pixmap on top of the hue.
painter.drawPixmap(0, 0, alpha_channel_pixmap)
return hue_pixmap
def _create_hue_pixmap(self):
'''
Create a simple hue pixmap where we change the hue in a conical gradient.
'''
from pyvmmonitor_qt.qt.QtGui import QPixmap
from pyvmmonitor_qt.qt.QtGui import QBrush
from pyvmmonitor_qt.qt_utils import painter_on
from pyvmmonitor_qt.qt.QtGui import QConicalGradient
stops = 360
delta = 1.0 / stops
v = 0.0
size = self._wheel_size
pixmap = QPixmap(size, size)
pixmap.fill(Qt.transparent)
degrees = 360
gradient = QConicalGradient(size / 2, size / 2, degrees)
for _stop in range(stops):
v += delta
# we do 1.0 - v to have blue on top (just a matter of taste really).
color = QColor.fromHsvF(1.0 - v, 1.0, 1.0)
gradient.setColorAt(v, color)
with painter_on(pixmap, True) as painter:
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(0, 0, size, size)
return pixmap
def _lighten_with_alpha(self, hue_pixmap):
from pyvmmonitor_qt.qt.QtGui import QPixmap
from pyvmmonitor_qt.qt_utils import painter_on
from pyvmmonitor_qt.qt.QtGui import QRadialGradient
from pyvmmonitor_qt.qt.QtGui import QBrush
size = self._wheel_size
# Create a gradient to lighten up the center
alpha_channel_pixmap = QPixmap(size, size)
alpha_channel_pixmap.fill(Qt.transparent)
radius = (size / 2) - 4
rg = QRadialGradient(size / 2, size / 2, radius, size / 2, size / 2)
delta = 0.1
v = 0.0
for _ in range(10):
v += delta
rg.setColorAt(v, QColor.fromHsvF(0, 0, 1.0, 1.0 - v))
with painter_on(alpha_channel_pixmap, True) as painter:
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(rg))
painter.drawEllipse(0, 0, size, size)
with painter_on(hue_pixmap, True) as painter:
# Draw the alpha channel pixmap on top of the hue.
painter.drawPixmap(0, 0, alpha_channel_pixmap)
return hue_pixmap
def _on_mouse_pos(self, pos):
saturation = self.saturation_from_point(*pos)
hue = self.hue_from_point(*pos)
# Update the model for the new saturation / hue.
value = self._model.color.valueF()
color = QColor.fromHsvF(hue, saturation, value)
self._model.color = color
def _on_mouse_pos(self, pos):
saturation = self.saturation_from_point(*pos)
hue = self.hue_from_point(*pos)
# Update the model for the new saturation / hue.
value = self._model.color.valueF()
color = QColor.fromHsvF(hue, saturation, value)
self._model.color = color
def _create_label_widgets(self):
hue_colors = [
(hue / 360., QColor.fromHsvF(hue / 360., 1.0, 1.0)) for hue in range(361)]
self._widget_0 = _LabelGradientAndInt(self, 'H', hue_colors, (0, 360))
self._widget_0.slider.setObjectName('Hue')
self._widget_1 = _LabelGradientAndInt(self, 'S', limits=self._saturation_limits)
self._widget_1.slider.setObjectName('Saturation')
self._widget_2 = _LabelGradientAndInt(self, 'V', limits=self._value_limits)
self._widget_2.slider.setObjectName('Value')
self.update_colors_in_slider = True
def _create_label_widgets(self):
hue_colors = [(hue / 360., QColor.fromHsvF(hue / 360., 1.0, 1.0))
for hue in range(361)]
self._widget_0 = _LabelGradientAndInt(self, 'H', hue_colors, (0, 360))
self._widget_0.slider.setObjectName('Hue')
self._widget_1 = _LabelGradientAndInt(self,
'S',
limits=self._saturation_limits)
self._widget_1.slider.setObjectName('Saturation')
self._widget_2 = _LabelGradientAndInt(self,
'V',
limits=self._value_limits)
self._widget_2.slider.setObjectName('Value')
self.update_colors_in_slider = True
def _create_color_from_params(self, params):
return QColor.fromHsvF(*params)
def _create_color_from_params(self, params):
return QColor.fromHsvF(*params)