def paintEvent(self, event):
"""Override QProgressBar's paintEvent."""
if self.text() != self._default_label.text():
self._default_label.setText(self.text())
if self.isTextVisible() != self._default_label.isVisible():
self._default_label.setVisible(self.isTextVisible())
percent = utils.get_percent(self.value(), self.minimum(),
self.maximum())
total_width = self.get_dayu_width()
pen_width = int(3 * total_width / 50.0)
radius = total_width - pen_width - 1
painter = QPainter(self)
painter.setRenderHints(QPainter.Antialiasing)
# draw background circle
pen_background = QPen()
pen_background.setWidth(pen_width)
pen_background.setColor(QColor(dayu_theme.background_selected_color))
pen_background.setCapStyle(Qt.RoundCap)
painter.setPen(pen_background)
painter.drawArc(pen_width / 2.0 + 1, pen_width / 2.0 + 1, radius,
radius, self._start_angle, -self._max_delta_angle)
# draw foreground circle
pen_foreground = QPen()
pen_foreground.setWidth(pen_width)
pen_foreground.setColor(QColor(self._color))
pen_foreground.setCapStyle(Qt.RoundCap)
painter.setPen(pen_foreground)
painter.drawArc(pen_width / 2.0 + 1, pen_width / 2.0 + 1, radius,
radius, self._start_angle,
-percent * 0.01 * self._max_delta_angle)
painter.end()
def generate_color(primary_color, index):
"""
Reference to ant-design color system algorithm.
:param primary_color: base color. #RRGGBB
:param index: color step. 1-10 from light to dark
:return: result color
"""
# 这里生成颜色的算法，来自 Ant Design, 只做了语言的转换，和颜色的类型的转换，没对算法做任何修改
# https://github.com/ant-design/ant-design/blob/master/components/style/color/colorPalette.less
# https://zhuanlan.zhihu.com/p/32422584
hue_step = 2
saturation_step = 16
saturation_step2 = 5
brightness_step1 = 5
brightness_step2 = 15
light_color_count = 5
dark_color_count = 4
def _get_hue(color, i, is_light):
h_comp = color.hue()
if 60 <= h_comp <= 240:
hue = h_comp - hue_step * i if is_light else h_comp + hue_step * i
else:
hue = h_comp + hue_step * i if is_light else h_comp - hue_step * i
if hue < 0:
hue += 359
elif hue >= 359:
hue -= 359
return hue / 359.0
def _get_saturation(color, i, is_light):
s_comp = color.saturationF() * 100
if is_light:
saturation = s_comp - saturation_step * i
elif i == dark_color_count:
saturation = s_comp + saturation_step
else:
saturation = s_comp + saturation_step2 * i
saturation = min(100.0, saturation)
if is_light and i == light_color_count and saturation > 10:
saturation = 10
saturation = max(6.0, saturation)
return round(saturation * 10) / 1000.0
def _get_value(color, i, is_light):
v_comp = color.valueF()
if is_light:
return min((v_comp * 100 + brightness_step1 * i) / 100, 1.0)
return max((v_comp * 100 - brightness_step2 * i) / 100, 0.0)
light = index <= 6
hsv_color = QColor(primary_color) if isinstance(primary_color, basestring) else primary_color
index = light_color_count + 1 - index if light else index - light_color_count - 1
return QColor.fromHsvF(
_get_hue(hsv_color, index, light),
_get_saturation(hsv_color, index, light),
_get_value(hsv_color, index, light)
).name()
def fade_color(color, alpha):
"""
Fade color with given alpha.
eg. fade_color('#ff0000', '10%) => 'rgba(255, 0, 0, 10%)'
:param color: string, hex digit format '#RRGGBB'
:param alpha: string, percent 'number%'
:return: qss/css color format rgba(r, g, b, a)
"""
q_color = QColor(color)
return 'rgba({}, {}, {}, {})'.format(q_color.red(), q_color.green(), q_color.blue(), alpha)
def compile_color(color1, color2):
"""
There is some bias when calculate with float. Set margin of error to 0.01
"""
delta = 0.01
q_color_1 = QColor(color1)
q_color_2 = QColor(color2)
return (abs(q_color_1.redF() - q_color_2.redF()) < delta) and \
(abs(q_color_1.greenF() - q_color_2.greenF()) < delta) and \
(abs(q_color_1.blueF() - q_color_2.blueF()) < delta)
def paint(self, painter, option, index):
painter.save()
icon_color = dayu_theme.icon_color
if option.state & QStyle.State_MouseOver:
painter.fillRect(option.rect, QColor(dayu_theme.primary_5))
icon_color = '#fff'
if option.state & QStyle.State_Selected:
painter.fillRect(option.rect, QColor(dayu_theme.primary_6))
icon_color = '#fff'
painter.setRenderHint(QPainter.Antialiasing)
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(Qt.white))
pix = MPixmap('down_fill.svg', icon_color)
h = option.rect.height()
pix = pix.scaledToWidth(h * 0.5, Qt.SmoothTransformation)
painter.drawPixmap(option.rect.x() + option.rect.width() - h,
option.rect.y() + h / 4, pix)
painter.restore()
super(MOptionDelegate, self).paint(painter, option, index)
def draw_empty_content(view, text=None, pix_map=None):
from dayu_widgets import dayu_theme
pix_map = pix_map or MPixmap('empty.svg')
text = text or view.tr('No Data')
painter = QPainter(view)
font_metrics = painter.fontMetrics()
painter.setPen(QPen(QColor(dayu_theme.secondary_text_color)))
content_height = pix_map.height() + font_metrics.height()
padding = 10
proper_min_size = min(view.height() - padding * 2, view.width() - padding * 2, content_height)
if proper_min_size < content_height:
pix_map = pix_map.scaledToHeight(proper_min_size - font_metrics.height(),
Qt.SmoothTransformation)
content_height = proper_min_size
painter.drawText(view.width() / 2 - font_metrics.width(text) / 2,
view.height() / 2 + content_height / 2 - font_metrics.height() / 2,
text)
painter.drawPixmap(view.width() / 2 - pix_map.width() / 2,
view.height() / 2 - content_height / 2, pix_map)
painter.end()