def draw_pieces():
"""draw pieces"""
# black pieces
qp.setPen(QPen(QColor(0, 0, 0), 1, Qt.SolidLine))
for x in range(15):
for y in range(15):
if self.g.g_map[x][y] == 1:
if self.flash_cnt % 2 == 1 and (
x, y) in self.flash_pieces:
continue
radial = QRadialGradient(40 * (x + 1), 40 * (y + 1),
15, 40 * x + 35, 40 * y + 35)
radial.setColorAt(0, QColor(96, 96, 96))
radial.setColorAt(1, QColor(0, 0, 0))
qp.setBrush(QBrush(radial))
qp.drawEllipse(QPoint(40 * (x + 1), 40 * (y + 1)), 15,
15)
# white pieces
qp.setPen(QPen(QColor(255, 255, 255), 1, Qt.SolidLine))
for x in range(15):
for y in range(15):
if self.g.g_map[x][y] == 2:
if self.flash_cnt % 2 == 1 and (
x, y) in self.flash_pieces:
continue
radial = QRadialGradient(40 * (x + 1), 40 * (y + 1),
15, 40 * x + 35, 40 * y + 35)
radial.setColorAt(0, QColor(255, 255, 255))
radial.setColorAt(1, QColor(160, 160, 160))
qp.setBrush(QBrush(radial))
qp.drawEllipse(QPoint(40 * (x + 1), 40 * (y + 1)), 15,
15)
def draw_pieces():
# """绘制棋子"""
# # 绘制黑棋子
qp.setPen(QPen(QColor(0, 0, 0), 1, Qt.SolidLine))
# qp.setBrush(QColor(0, 0, 0))
for x in range(self.H):
for y in range(self.W):
if self.g.chessboard[x, y] == 1:
# if self.flash_cnt % 2 == 1 and (x, y) in self.flash_pieces:
# continue
radial = QRadialGradient(40 * (x + 1), 40 * (y + 1),
15, 40 * x + 35,
40 * y + 35) # 棋子的渐变效果
radial.setColorAt(0, QColor(96, 96, 96))
radial.setColorAt(1, QColor(0, 0, 0))
qp.setBrush(QBrush(radial))
qp.drawEllipse(QPoint(40 * (x + 1), 40 * (y + 1)), 15,
15)
# # 绘制白棋子
qp.setPen(QPen(QColor(160, 160, 160), 1, Qt.SolidLine))
# qp.setBrush(QColor(255, 255, 255))
for x in range(self.H):
for y in range(self.W):
if self.g.chessboard[x, y] == 2:
# if self.flash_cnt % 2 == 1 and (x, y) in self.flash_pieces:
# continue
radial = QRadialGradient(40 * (x + 1), 40 * (y + 1),
15, 40 * x + 35,
40 * y + 35) # 棋子的渐变效果
radial.setColorAt(0, QColor(255, 255, 255))
radial.setColorAt(1, QColor(160, 160, 160))
qp.setBrush(QBrush(radial))
qp.drawEllipse(QPoint(40 * (x + 1), 40 * (y + 1)), 15,
15)
def paintEvent(self, event):
super().paintEvent(event)
painter = QPainter(self)
size = self.size()
brush = QBrush()
smallest_dim = size.width()
if smallest_dim > size.height():
smallest_dim = size.height()
smallest_dim = smallest_dim / 2
smallest_dim -= 2
center_x = size.width() / 2
center_y = size.height() / 2
centerpoint = QPoint(center_x, center_y)
radius = smallest_dim
painter.setPen(QPen(QColor('lightgray'), 0))
brush.setStyle(Qtc.SolidPattern)
radial = QRadialGradient(center_x, center_y / 2, radius)
radial.setColorAt(0, Qtc.white)
radial.setColorAt(0.8, Qtc.darkGray)
painter.setBrush(QBrush(radial))
painter.drawEllipse(centerpoint, radius, radius)
# Draw the colored center
radial = QRadialGradient(center_x, center_y / 2, radius)
radial.setColorAt(0, Qtc.white)
if self.curState:
radial.setColorAt(.7, self.on_color)
brush.setColor(self.on_color)
painter.setPen(QPen(self.on_color, 0))
else:
radial.setColorAt(.7, self.off_color)
brush.setColor(self.off_color)
painter.setPen(QPen(self.off_color, 0))
brush.setStyle(Qtc.SolidPattern)
painter.setBrush(QBrush(radial))
if smallest_dim <= 30:
radius = radius - 3
elif smallest_dim <= 60:
radius = radius - 4
elif smallest_dim <= 100:
radius = radius - 5
elif smallest_dim <= 200:
radius = radius - 6
elif smallest_dim <= 300:
radius = radius - 7
else:
radius = radius - 9
painter.drawEllipse(centerpoint, radius, radius)
def drawGradients(self, painter: QPainter):
painter.setRenderHint(QPainter.Antialiasing)
painter.setPen(Qt.NoPen)
gr1 = QRadialGradient(20.0, 20.0, 110.0)
painter.setBrush(gr1)
painter.drawEllipse(20.0, 20.0, 100.0, 100.0)
gr2 = QRadialGradient(190.0, 70.0, 50.0, 190.0, 70.0)
gr2.setColorAt(0.2, Qt.yellow)
gr2.setColorAt(0.7, Qt.black)
painter.setBrush(gr2)
painter.drawEllipse(140.0, 20.0, 100.0, 100.0)
def paintEvent(self, event):
qp = QPainter()
qp.begin(self)
qp.setRenderHint(QPainter.Antialiasing, True)
qp.setPen(Qt.NoPen)
qp.setBrush(QColor(120, 120, 120))
qp.drawEllipse(0, 0, 20, 20)
rg = QRadialGradient(int(self.width() / 2), int(self.height() / 2), 12)
rg.setColorAt(0, QColor(255, 255, 255))
rg.setColorAt(0.6, QColor(255, 255, 255))
rg.setColorAt(1, QColor(205, 205, 205))
qp.setBrush(QBrush(rg))
qp.drawEllipse(1, 1, 18, 18)
qp.setBrush(QColor(210, 210, 210))
qp.drawEllipse(2, 2, 16, 16)
if self.__enabled:
lg = QLinearGradient(3, 18, 20, 4)
lg.setColorAt(0, QColor(255, 255, 255, 255))
lg.setColorAt(0.55, QColor(230, 230, 230, 255))
lg.setColorAt(0.72, QColor(255, 255, 255, 255))
lg.setColorAt(1, QColor(255, 255, 255, 255))
qp.setBrush(lg)
qp.drawEllipse(3, 3, 14, 14)
else:
lg = QLinearGradient(3, 18, 20, 4)
lg.setColorAt(0, QColor(230, 230, 230))
lg.setColorAt(0.55, QColor(210, 210, 210))
lg.setColorAt(0.72, QColor(230, 230, 230))
lg.setColorAt(1, QColor(230, 230, 230))
qp.setBrush(lg)
qp.drawEllipse(3, 3, 14, 14)
qp.end()
def gradient_darker(grad, factor):
"""Return a copy of the QGradient darkened by factor.
.. note:: Only QLinearGradeint and QRadialGradient are supported.
"""
if type(grad) is QGradient:
if grad.type() == QGradient.LinearGradient:
grad = sip.cast(grad, QLinearGradient)
elif grad.type() == QGradient.RadialGradient:
grad = sip.cast(grad, QRadialGradient)
if isinstance(grad, QLinearGradient):
new_grad = QLinearGradient(grad.start(), grad.finalStop())
elif isinstance(grad, QRadialGradient):
new_grad = QRadialGradient(grad.center(), grad.radius(),
grad.focalPoint())
else:
raise TypeError
new_grad.setCoordinateMode(grad.coordinateMode())
for pos, color in grad.stops():
new_grad.setColorAt(pos, color.darker(factor))
return new_grad
def paintEvent(self, QPaintEvent):
p = QPainter(self)
r = self.rect()
p.setPen(self.pen)
if (self.sd.style == QGradient.LinearGradient):
linearGradient = QLinearGradient(self.startPoint, self.endPoint)
linearGradient.setColorAt(0.0, self.sd.startColor)
linearGradient.setColorAt(1.0, self.sd.endColor)
linearGradient.setSpread(self.sd.spread)
p.setBrush(linearGradient)
elif (self.sd.style == QGradient.RadialGradient):
rr = math.sqrt(
math.pow(self.endPoint.x() - self.startPoint.x(), 2) + math.pow(self.endPoint.y() - self.startPoint.y(),
2))
radialGradient = QRadialGradient(self.startPoint, rr, self.startPoint)
radialGradient.setColorAt(0.0, self.sd.startColor)
radialGradient.setColorAt(1.0, self.sd.endColor)
radialGradient.setSpread(self.sd.spread)
p.setBrush(radialGradient)
elif (self.sd.style == QGradient.ConicalGradient):
angle = math.atan2(self.endPoint.y() - self.startPoint.y(), self.endPoint.x() - self.startPoint.x())
conicalGradient = QConicalGradient(self.startPoint, -(180 * angle) / math.pi)
conicalGradient.setColorAt(0.0, self.sd.startColor)
conicalGradient.setColorAt(1.0, self.sd.endColor)
p.setBrush(conicalGradient)
p.drawRect(r)
def paintEvent(self, event):
background = QRadialGradient(QPointF(self.rect().topLeft()), 500,
QPointF(self.rect().bottomRight()))
background.setColorAt(0, self.backgroundColor1)
background.setColorAt(1, self.backgroundColor2)
painter = QPainter()
painter.begin(self)
painter.setRenderHint(QPainter.Antialiasing)
painter.fillRect(event.rect(), QBrush(background))
painter.setPen(self.pen)
for bubble in self.bubbles:
if QRectF(bubble.position - QPointF(bubble.radius, bubble.radius),
QSizeF(2 * bubble.radius, 2 * bubble.radius)).intersects(
QRectF(event.rect())):
bubble.drawBubble(painter)
if self.newBubble:
self.newBubble.drawBubble(painter)
painter.end()
def drawTarget(self):
if self.target == None:
return
x = self.target.x
y = self.target.y
width = self.target.width
height = self.target.height
# prepare drawing
painter = QPainter(self.targetPixmap)
if self.target.visualForm == 'red_dot' or self.target.visualForm == 'dot+head':
radialGrad = QRadialGradient(QPoint(x, y), max(width, height) / 2)
radialGrad.setColorAt(0, self.target.color)
radialGrad.setColorAt(1, Qt.white)
targetBrush = QBrush(radialGrad)
targetPen = QPen(Qt.transparent, 0, Qt.SolidLine)
painter.setPen(targetPen)
painter.setBrush(targetBrush)
painter.drawEllipse(x - width / 2, y - height / 2, width, height)
if self.target.visualForm == 'nao_head' or self.target.visualForm == 'dot+head':
painter.drawPixmap(x - NAO_HEAD_SIZE / 2, y - NAO_HEAD_SIZE / 2,
self.naoPixmap)
painter.end()
self.viewport().update()
def paint(self, painter, option, widget):
if self.is_node1:
color = Qt.green
dark_color = Qt.darkGreen
else:
color = Qt.yellow
dark_color = Qt.darkYellow
gradient = QRadialGradient(-3, -3, 10)
if option.state & QStyle.State_MouseOver:
gradient.setCenter(3, 3)
gradient.setFocalPoint(3, 3)
gradient.setColorAt(1, QColor(color).lighter(120))
gradient.setColorAt(0, QColor(dark_color).lighter(120))
else:
gradient.setColorAt(0, color)
gradient.setColorAt(1, dark_color)
painter.setBrush(QBrush(gradient))
painter.setPen(QPen(Qt.black, 0))
painter.drawEllipse(-10, -10, 20, 20)
# node text
painter.setPen(QPen(QColor(Qt.black), 0))
painter.drawText(13, 4, "%s" % self.node_record.index)
def paintEvent(self, evt):
painter = QPainter(self)
painter.setRenderHint(QPainter.Antialiasing, True)
painter.setPen(QPen(Qt.black, 1))
realSize = min(self.width(), self.height()) # 窗口的短边
painter.translate(self.width() / 2.0, self.height() / 2.0) # 原点平移到窗口中心
painter.scale(realSize / self.scaledSize, realSize / self.scaledSize) # 缩放，窗口的短边值映射为self.scaledSize
gradient = QRadialGradient(QPointF(0, 0), self.scaledSize / 2.0, QPointF(0, 0)) # 辐射渐变
# 画边框外圈和内圈
for color, radius in [(self.colorBorderOut, self.radiusBorderOut), # 边框外圈
(self.colorBorderIn, self.radiusBorderIn)]: # 边框内圈
gradient.setColorAt(1, color)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(QPointF(0, 0), radius, radius)
# 画内圆
if self.state == 'off':
gradient.setColorAt(0, self.colorOffBegin)
gradient.setColorAt(1, self.colorOffEnd)
else:
gradient.setColorAt(0, self.colorOnBegin)
gradient.setColorAt(1, self.colorOnEnd)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(QPointF(0, 0), self.radiusCircle, self.radiusCircle)
def __init__(self, index, name, func, parent):
super().__init__(parent)
self.index = index
self.name = name
self.function = func
self.resize(TILE_WIDTH << 2, TILE_HEIGHT << 2)
self.show()
self.opacity = None
self.setMouseTracking(True)
self.color = QColor(50 * self.index, 255, 255 - 10 * self.index)
self.gradient = QRadialGradient(
50 + 10 * self.index, 50 - 10 * self.index, 500 - 50 * self.index,
50 + 10 * self.index, 100 - 10 * self.index)
self.gradient.setColorAt(0, QColor(200, 200, 200))
self.gradient.setColorAt(0.5, QColor(50 * self.index, 255, 255 - 10 * self.index))
self.gradient.setColorAt(1, QColor(200, 200, 200))
self.brush = QBrush(self.gradient)
self.path = QPainterPath()
rect = QRectF(TILE_WIDTH * 1.5, TILE_HEIGHT * 1.5, TILE_WIDTH * 1.5, TILE_HEIGHT * 1.5)
total = self.parent().total - 1
if total < 3:
total = 3
if self.index == 0:
self.path.arcMoveTo(rect, 90)
self.path.arcTo(rect, 90, 360)
else:
self.path.arcMoveTo(QRectF(self.rect()), 90 + self.index * 360 // total)
self.path.arcTo(QRectF(self.rect()), 90 + self.index * 360 // total, 360 // total)
self.path.arcTo(rect, 90 + self.index * 360 // total + 360 // total, -360 // total)
self.path.arcTo(QRectF(self.rect()), 90 + self.index * 360 // total, 0)
def updateBrush(self):
gradient = QRadialGradient(QPointF(self.radius, self.radius), self.radius, QPointF(self.radius*0.5, self.radius*0.5))
gradient.setColorAt(0, QColor(255, 255, 255, 255))
gradient.setColorAt(0.25, self.innerColor)
gradient.setColorAt(1, self.outerColor)
self.brush = QBrush(gradient)
def slotBrush(self, value):
color = self.brushColorFrame.palette().color(QPalette.Window)
style = Qt.BrushStyle(
self.brushStyleComboBox.itemData(value, Qt.UserRole))
if (style == Qt.LinearGradientPattern):
linearGradient = QLinearGradient(0, 0, 400, 400)
linearGradient.setColorAt(0.0, Qt.white)
linearGradient.setColorAt(0.2, color)
linearGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(linearGradient)
elif style == Qt.RadialGradientPattern:
radialGradient = QRadialGradient(200, 200, 80, 70, 70)
radialGradient.setColorAt(0.0, Qt.white)
radialGradient.setColorAt(0.2, Qt.green)
radialGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(radialGradient)
elif (style == Qt.ConicalGradientPattern):
conicalGradient = QConicalGradient(200, 200, 30)
conicalGradient.setColorAt(0.0, Qt.white)
conicalGradient.setColorAt(0.2, color)
conicalGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(conicalGradient)
elif (style == Qt.TexturePattern):
self.area.setBrush(QBrush(QPixmap("images/brick.png")))
else:
self.area.setBrush(QBrush(color, style))
def brushChanged(self):
style = Qt.BrushStyle(
self.brushStyleComboBox.itemData(
self.brushStyleComboBox.currentIndex(), IdRole))
if style == Qt.LinearGradientPattern:
linearGradient = QLinearGradient(0, 0, 100, 100)
linearGradient.setColorAt(0.0, Qt.white)
linearGradient.setColorAt(0.2, Qt.green)
linearGradient.setColorAt(1.0, Qt.black)
self.renderArea.setBrush(QBrush(linearGradient))
elif style == Qt.RadialGradientPattern:
radialGradient = QRadialGradient(50, 50, 50, 70, 70)
radialGradient.setColorAt(0.0, Qt.white)
radialGradient.setColorAt(0.2, Qt.green)
radialGradient.setColorAt(1.0, Qt.black)
self.renderArea.setBrush(QBrush(radialGradient))
elif style == Qt.ConicalGradientPattern:
conicalGradient = QConicalGradient(50, 50, 150)
conicalGradient.setColorAt(0.0, Qt.white)
conicalGradient.setColorAt(0.2, Qt.green)
conicalGradient.setColorAt(1.0, Qt.black)
self.renderArea.setBrush(QBrush(conicalGradient))
elif style == Qt.TexturePattern:
self.renderArea.setBrush(QBrush(QPixmap(":/images/brick.png")))
else:
self.renderArea.setBrush(QBrush(Qt.green, style))
def __paintRound(self):
"""
Private method to paint a round raised LED.
"""
# Initialize coordinates, width and height of the LED
width = self.__getBestRoundSize()
# Calculate the gradient for the LED
wh = width / 2
color = self.__led_on and self.__led_color or self.__offcolor
gradient = QRadialGradient(wh, wh, wh, 0.8 * wh, 0.8 * wh)
gradient.setColorAt(0.0, color.lighter(200))
gradient.setColorAt(0.6, color)
if self.__framedLed:
gradient.setColorAt(0.9, color.darker())
gradient.setColorAt(1.0, self.palette().color(QPalette.Dark))
else:
gradient.setColorAt(1.0, color.darker())
# now do the drawing
paint = QPainter(self)
paint.setRenderHint(QPainter.Antialiasing, True)
paint.setBrush(QBrush(gradient))
paint.setPen(Qt.NoPen)
paint.drawEllipse(1, 1, width, width)
paint.end()
def setupParametricCurveDemo(self):
self.demoName = "Parametric Curves Demo"
# create empty curve objects. As they are not adopted by main QCustomPlot an explicit
# reference must be kept
self.fermatSpiral1 = QCustomPlot.QCPCurve(self.customPlot.xAxis,
self.customPlot.yAxis)
self.fermatSpiral2 = QCustomPlot.QCPCurve(self.customPlot.xAxis,
self.customPlot.yAxis)
self.deltoidRadial = QCustomPlot.QCPCurve(self.customPlot.xAxis,
self.customPlot.yAxis)
# generate the curve data points:
pointCount = 501
dataSpiral1 = [[0.0] * pointCount, [0.0] * pointCount,
[0.0] * pointCount]
dataSpiral2 = [[0.0] * pointCount, [0.0] * pointCount,
[0.0] * pointCount]
dataDeltoid = [[0.0] * pointCount, [0.0] * pointCount,
[0.0] * pointCount]
for i in range(0, pointCount):
phi = i / (pointCount - 1) * 8 * math.pi
theta = i / (pointCount - 1) * 2 * math.pi
dataSpiral1[0][i] = float(i)
dataSpiral1[1][i] = math.sqrt(phi) * math.cos(phi)
dataSpiral1[2][i] = math.sqrt(phi) * math.sin(phi)
dataSpiral2[0][i] = float(i)
dataSpiral2[1][i] = -dataSpiral1[1][i]
dataSpiral2[2][i] = -dataSpiral1[2][i]
dataDeltoid[0][i] = float(i)
dataDeltoid[1][i] = 2 * math.cos(2 * theta) + math.cos(
1 * theta) + 2 * math.sin(theta)
dataDeltoid[2][i] = 2 * math.sin(2 * theta) - math.sin(1 * theta)
# pass the data to the curves; we know t (i in loop above) is ascending, so set alreadySorted=true (saves an extra internal sort):
self.fermatSpiral1.setData(dataSpiral1[0], dataSpiral1[1],
dataSpiral1[2], True)
self.fermatSpiral2.setData(dataSpiral2[0], dataSpiral2[1],
dataSpiral2[2], True)
self.deltoidRadial.setData(dataDeltoid[0], dataDeltoid[1],
dataDeltoid[2], True)
# color the curves:
self.fermatSpiral1.setPen(QPen(Qt.blue))
self.fermatSpiral1.setBrush(QBrush(QColor(0, 0, 255, 20)))
self.fermatSpiral2.setPen(QPen(QColor(255, 120, 0)))
self.fermatSpiral2.setBrush(QBrush(QColor(255, 120, 0, 30)))
radialGrad = QRadialGradient(QPointF(310, 180), 200)
radialGrad.setColorAt(0, QColor(170, 20, 240, 100))
radialGrad.setColorAt(0.5, QColor(20, 10, 255, 40))
radialGrad.setColorAt(1, QColor(120, 20, 240, 10))
self.deltoidRadial.setPen(QPen(QColor(170, 20, 240)))
self.deltoidRadial.setBrush(QBrush(radialGrad))
# set some basic customPlot config:
self.customPlot.setInteractions(
QCustomPlot.QCP.Interactions(QCustomPlot.QCP.iRangeDrag
| QCustomPlot.QCP.iRangeZoom
| QCustomPlot.QCP.iSelectPlottables))
self.customPlot.axisRect().setupFullAxesBox()
self.customPlot.rescaleAxes()
def point_obj(self):
p = pg.QtGui.QPainter(self.picture)
p.setRenderHint(QtGui.QPainter.Antialiasing, True)
gradient = QRadialGradient(QtCore.QPointF(self.x, self.y), 5)
gradient.setColorAt(0, QColor('#fc030b'))
gradient.setColorAt(1, QColor('#9065e0'))
p.setBrush(gradient)
p.setPen(QtCore.Qt.NoPen)
p.drawEllipse(QtCore.QPointF(self.x, self.y), 3, 3)
p.end()
def drawMagnifierOnVideo(width, height, maskPixmap, dragPos, zoomPixmap, surface, painter, offset):
''' Draw Magnifier on Video '''
dim = min(width, height)
MAX_MAGNIFIER = 229
magnifierSize = min(MAX_MAGNIFIER, dim * 2 / 3)
radius = magnifierSize / 2
ring = radius - 15
box = QSize(magnifierSize, magnifierSize)
# reupdate our mask
if maskPixmap.size() != box:
maskPixmap = QPixmap(box)
maskPixmap.fill(Qt.transparent)
g = QRadialGradient()
g.setCenter(radius, radius)
g.setFocalPoint(radius, radius)
g.setRadius(radius)
g.setColorAt(1.0, QColor(64, 64, 64, 0))
g.setColorAt(0.5, QColor(0, 0, 0, 255))
mask = QPainter(maskPixmap)
mask.setRenderHint(QPainter.HighQualityAntialiasing)
mask.setCompositionMode(QPainter.CompositionMode_Source)
mask.setBrush(g)
mask.setPen(Qt.NoPen)
mask.drawRect(maskPixmap.rect())
mask.setBrush(QColor(Qt.transparent))
mask.drawEllipse(g.center(), ring, ring)
mask.end()
center = dragPos - QPoint(0, radius)
center += QPoint(0, radius / 2)
corner = center - QPoint(radius, radius)
xy = center * 2 - QPoint(radius, radius)
# only set the dimension to the magnified portion
if zoomPixmap.size() != box:
zoomPixmap = QPixmap(box)
zoomPixmap.fill(Qt.lightGray)
if True:
painter_p = QPainter(zoomPixmap)
painter_p.translate(-xy)
largePixmap = QPixmap.fromImage(surface.image)
painter_p.drawPixmap(offset, largePixmap)
painter_p.end()
clipPath = QPainterPath()
clipPath.addEllipse(QPointF(center), ring, ring)
painter.setClipPath(clipPath)
painter.drawPixmap(corner, zoomPixmap)
painter.setClipping(False)
painter.drawPixmap(corner, maskPixmap)
painter.setPen(Qt.gray)
painter.drawPath(clipPath)
return
def paint(self, painter, option, widget):
ellipse = self.boundingRect()
gradient = QRadialGradient(0, 8, 20, 0, 8)
gradient.setColorAt(0.0, Qt.white)
gradient.setColorAt(0.8, self.color)
painter.setBrush(gradient)
painter.setPen(self.color)
painter.drawEllipse(ellipse)
painter.setFont(QFont("Verdana", 8))
painter.setPen(QColor(Qt.white))
painter.drawText(ellipse, Qt.AlignCenter, self.name)
def paintEvent(self, event):
painter = QPainter(self)
painter.setPen(QPen(Qt.black, 4, Qt.SolidLine))
radialGradient = QRadialGradient(QPoint(100, 100), 100)
radialGradient.setColorAt(0.0, Qt.red)
radialGradient.setColorAt(0.8, Qt.green)
radialGradient.setColorAt(1.0, Qt.yellow)
painter.setBrush(QBrush(radialGradient))
painter.drawRect(10, 10, 200, 200)
def paint(self, painter, option, widget):
gradient = QRadialGradient(-3, -3, 10)
if option.state & QStyle.State_Sunken:
gradient.setCenter(3, 3)
gradient.setFocalPoint(3, 3)
gradient.setColorAt(0, QColor(Qt.yellow).light(120))
else:
gradient.setColorAt(0, QColor(Qt.yellow).light(120))
painter.setBrush(gradient)
painter.setPen(QPen(Qt.black, 0))
painter.drawRoundedRect(self.boundingRect(), 3, 3)
def drawBackground(self, painter, widget):
painter.setRenderHint(QPainter.Antialiasing)
painter.setPen(Qt.NoPen)
p1 = QPointF(80, 80)
g = QRadialGradient(p1 * 0.2, 80 * 1.1)
g.setColorAt(0.0, widget.palette().light().color())
g.setColorAt(1.0, widget.palette().dark().color())
painter.setBrush(g)
painter.drawEllipse(0, 0, 80, 80)
p2 = QPointF(40, 40)
g = QRadialGradient(p2, 70 * 1.3)
g.setColorAt(0.0, widget.palette().midlight().color())
g.setColorAt(1.0, widget.palette().dark().color())
painter.setBrush(g)
painter.drawEllipse(7.5, 7.5, 65, 65)
def draw_center(self, qp, event, w):
w *= 0.2
rect = QRect()
rect.setSize(QSize(w, w))
rect.moveCenter(event.rect().center())
rad = rect.width() / 2
cap = QRadialGradient(rect.center(), rad)
cap.setColorAt(0, Qt.white)
cap.setColorAt(1, Qt.gray)
qp.setPen(QPen(Qt.black, 1))
qp.setBrush(QBrush(cap))
qp.drawEllipse(rect)
def __init__(self, nx_node, pos):
"""
Create node in the graph scene
:param tuple nx_node: Node info
:param x_y: Position of the node
"""
super().__init__(nx_node, pos)
# color around ellipse
outline_color = QColor('grey')
outline_style = Qt.SolidLine
outline_width = 1
if self.status_wallet:
outline_color = QColor('black')
outline_width = 2
if not self.status_member:
outline_color = QColor('red')
outline_style = Qt.SolidLine
self.setPen(QPen(outline_color, outline_width, outline_style))
# text inside ellipse
self.text_item = QGraphicsSimpleTextItem(self)
self.text_item.setText(self.text)
text_color = QColor('grey')
if self.status_wallet == NodeStatus.HIGHLIGHTED:
text_color = QColor('black')
self.text_item.setBrush(QBrush(text_color))
# center ellipse around text
self.setRect(0, 0,
self.text_item.boundingRect().width() * 2,
self.text_item.boundingRect().height() * 2)
# set anchor to the center
self.setTransform(QTransform().translate(
-self.boundingRect().width() / 2.0,
-self.boundingRect().height() / 2.0))
# center text in ellipse
self.text_item.setPos(self.boundingRect().width() / 4.0,
self.boundingRect().height() / 4.0)
# create gradient inside the ellipse
gradient = QRadialGradient(
QPointF(0,
self.boundingRect().height() / 4),
self.boundingRect().width())
gradient.setColorAt(0, QColor('white'))
gradient.setColorAt(1, QColor('darkgrey'))
self.setBrush(QBrush(gradient))
# cursor change on hover
self.setAcceptHoverEvents(True)
self.setZValue(1)
def gradientCirclePixmap(self):
"""白色带阴影
"""
xy = self.height() / 2
radius = self.height() * 0.8
# 绘制普通状态下圆形的滑块
circleColor = QRadialGradient(xy, xy, radius, xy, xy)
circleColor.setColorAt(0.5, QColor(254, 254, 254))
circleColor.setColorAt(0.7, QColor(0, 0, 0, 60))
circleColor.setColorAt(0.7, QColor(0, 0, 0, 30))
circleColor.setColorAt(0.9, QColor(0, 0, 0, 0))
self._imageCircle = QImage(self.height(), self.height(),
QImage.Format_ARGB32)
self._imageCircle.fill(Qt.transparent)
painter = QPainter()
painter.begin(self._imageCircle)
painter.setRenderHint(QPainter.Antialiasing, True)
painter.setRenderHint(QPainter.SmoothPixmapTransform, True)
painter.setPen(Qt.NoPen)
painter.setBrush(circleColor)
painter.drawRoundedRect(0, 0, self.height(), self.height(), xy, xy)
painter.end()
# 绘制悬停状态下圆形的滑块
circleColorHover = QRadialGradient(xy, xy, radius, xy, xy)
circleColorHover.setColorAt(0.5, QColor(245, 245, 245))
circleColorHover.setColorAt(0.7, QColor(0, 0, 0, 30))
circleColorHover.setColorAt(0.9, QColor(0, 0, 0, 0))
self._imageCircleHover = QImage(self.height(), self.height(),
QImage.Format_ARGB32)
self._imageCircleHover.fill(Qt.transparent)
painter = QPainter()
painter.begin(self._imageCircleHover)
painter.setRenderHint(QPainter.Antialiasing, True)
painter.setRenderHint(QPainter.SmoothPixmapTransform, True)
painter.setPen(Qt.NoPen)
painter.setBrush(circleColorHover)
painter.drawRoundedRect(0, 0, self.height(), self.height(), xy, xy)
painter.end()
def paintEvent(self, QPaintEvent):
realSize = min(self.width(), self.height())
painter = QPainter(self)
pen = QPen(Qt.black)
pen.setWidth(1)
painter.setRenderHint(QPainter.Antialiasing)
painter.translate(self.width() / 2, self.height() / 2)
painter.scale(realSize / self.scaledSize, realSize / self.scaledSize)
gradient = QRadialGradient(QPointF(-500, -500), 1500,
QPointF(-500, -500))
gradient.setColorAt(0, QColor(224, 224, 224))
gradient.setColorAt(1, QColor(28, 28, 28))
painter.setPen(pen)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(QPointF(0, 0), 500, 500)
gradient = QRadialGradient(QPointF(500, 500), 1500, QPointF(500, 500))
gradient.setColorAt(0, QColor(224, 224, 224))
gradient.setColorAt(1, QColor(28, 28, 28))
painter.setPen(pen)
painter.setBrush(QBrush(gradient))
painter.drawEllipse(QPointF(0, 0), 450, 450)
painter.setPen(pen)
if self.isChecked():
gradient = QRadialGradient(QPointF(-500, -500), 1500,
QPointF(-500, -500))
gradient.setColorAt(0, self.on_color_1)
gradient.setColorAt(1, self.on_color_2)
else:
gradient = QRadialGradient(QPointF(500, 500), 1500,
QPointF(500, 500))
gradient.setColorAt(0, self.off_color_1)
gradient.setColorAt(1, self.off_color_2)
painter.setBrush(gradient)
painter.drawEllipse(QPointF(0, 0), 400, 400)
def __init__(self, config, type, pulseSound, endingSound):
super().__init__()
self.type = type
self.config = config
self.width = 200
self.height = 200
self.m_boundingRect = QRectF(0, 0, self.width, self.height)
self.m_painterPath = QPainterPath()
self.m_painterPath.addEllipse(self.m_boundingRect)
# radial gradient settings
self.rgcx = self.m_boundingRect.center().x()
self.rgcy = self.m_boundingRect.center().y()
self.rgMinRadius = 50
self.rgMaxRadius = 300
self.rgCurrentRadius = 50
self.rgfx = self.rgcx
self.rgfy = self.rgcy
self.rg = QRadialGradient(self.rgcx, self.rgcy, self.rgCurrentRadius, self.rgfx, self.rgfy)
if self.type is DeusExTypes.POSITIVE:
firstClr = QColor(Qt.green)
firstClr.setAlphaF(0.7)
secondClr = QColor(Qt.darkGreen)
secondClr.setAlphaF(0.7)
self.rg.setColorAt(0.0, firstClr)
self.rg.setColorAt(1.0, secondClr)
else:
firstClr = QColor(Qt.red)
firstClr.setAlphaF(0.7)
secondClr = QColor(Qt.darkRed)
secondClr.setAlphaF(0.7)
self.rg.setColorAt(0.0, firstClr)
self.rg.setColorAt(1.0, secondClr)
# pulsing sound
self.pulseSound = pulseSound
self.endingSound = endingSound
# pulsing timer
self.pulseTimer = QTimer()
self.pulseTimer.setTimerType(Qt.PreciseTimer)
self.pulseTimer.timeout.connect(self.pulse)
self.pulseTimer.start(100)
# pre activate timer
self.preActivateTimer = QTimer()
self.preActivateTimer.setTimerType(Qt.PreciseTimer)
self.preActivateTimer.timeout.connect(self.preActivate)
if self.type is DeusExTypes.POSITIVE:
self.preActivateTimer.start(10000)
else:
self.preActivateTimer.start(3000)
# activate timer
self.activateTimer = QTimer()
self.activateTimer.setTimerType(Qt.PreciseTimer)
self.activateTimer.timeout.connect(self.endingSoundFinished)
def draw_value(self, painter):
self.initCoordinateSystem(painter)
color = QColor(Qt.blue)
if self.mPointer.value() >= self.mPointer.nominal():
color = QColor(0, 200, 0)
if self.mPointer.value() >= self.mPointer.critical():
color = QColor(Qt.red)
factor = (self.mPointer.value() - self.mPointer.minimal()) / (
self.mPointer.maximal() - self.mPointer.minimal())
painter.setFont(self.mValueFont)
st = "{} ℃".format(self.mPointer.value())
Size = painter.fontMetrics().size(Qt.TextSingleLine, st)
painter.drawText(QPointF(Size.width() / -2, 307 - Size.height()), st)
slug = QLinearGradient(0.0, 0.0, 5.0, 0.0)
tank = QRadialGradient(0.0, 267.0, 10.0, -5.0, 262.0)
slug.setSpread(QGradient.ReflectSpread)
tank.setSpread(QGradient.ReflectSpread)
color.setHsv(color.hue(), color.saturation(), color.value())
slug.setColorAt(1.0, color)
tank.setColorAt(1.0, color)
color.setHsv(color.hue(), color.saturation() - 200, color.value())
slug.setColorAt(0.0, color)
tank.setColorAt(0.0, color)
painter.setPen(Qt.NoPen)
painter.setBrush(slug)
offset = 10
temp = 224 * factor
height = temp + offset
if 231 < temp:
height = 231 + offset
if offset - 5 >= height:
height = offset - 5
painter.drawRect(-5, 252 + offset - height, 10, height)
painter.setBrush(tank)
painter.drawEllipse(QRectF(-10.0, 257.5, 20.0, 20.0))
painter.end()
def paintEvent(self, event):
painter = QPainter(self)
pen = QPen()
pen.setStyle(Qt.NoPen)
painter.setPen(pen)
W = self.width()
H = self.height()
radialGrad = QRadialGradient(W / 2, H / 2, W / 8, W / 2, H / 2)
radialGrad.setColorAt(0, Qt.yellow)
radialGrad.setColorAt(1, Qt.blue)
radialGrad.setSpread(QGradient.ReflectSpread)
painter.setBrush(radialGrad)
painter.drawRect(self.rect())
