def draw_NI_extended_background(painter, c, w, h, bounding_rect,
title_rect):
"""
:param painter: painter from paint event
:param c: NodeInstance's theme color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
:param title_rect: NI's title label's bounding rect
"""
background_color = QColor('#212429')
header_color = c
rel_header_height = NIPainter.get_header_rect(w, h,
title_rect).height() / h
gradient = QLinearGradient(bounding_rect.topLeft(),
bounding_rect.bottomLeft())
gradient.setColorAt(0, header_color)
gradient.setColorAt(rel_header_height, header_color)
gradient.setColorAt(rel_header_height + 0.0001, background_color)
gradient.setColorAt(1, background_color)
painter.setBrush(gradient)
painter.setPen(Qt.NoPen) #QPen(c.darker()))
painter.drawRoundedRect(bounding_rect, 9, 9)
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 drawBg(self, painter: QPainter) -> None:
painter.save()
# 设置边框颜色及宽度
pen: QPen = QPen()
pen.setColor(self.__borderColor)
pen.setWidthF(self.__borderWidth)
painter.setPen(pen)
# 绘制区域要减去边框宽度
rect: QRect = QRect()
rect.setX(self.__borderWidth)
rect.setY(self.__borderWidth)
rect.setWidth(self.width() - self.__borderWidth * 2)
rect.setHeight(self.height() - self.__borderWidth * 2)
# 如果背景图片存在则显示背景图片,否则显示背景色
if not self.__bgImage.isNull():
# 等比例缩放绘制
img: QPixmap = self.__bgImage.scaled(rect.width(), rect.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation)
painter.drawPixmap((self.rect().width() - img.width()) / 2, (self.rect().height() - img.height()) / 2, img)
else:
if self.__colorMode == ColorButton.ColorMode.ColorMode_Normal:
if self.__isPressed:
painter.setBrush(QBrush(self.__pressedColor))
else:
painter.setBrush(QBrush(self.__normalColor))
elif self.__colorMode == ColorButton.ColorMode.ColorMode_Replace:
gradient: QLinearGradient = QLinearGradient(QPoint(0, 0), QPoint(0, self.height()))
if self.__isPressed:
gradient.setColorAt(0.0, self.__pressedColor)
gradient.setColorAt(0.49, self.__pressedColor)
gradient.setColorAt(0.50, self.__normalColor)
gradient.setColorAt(1.0, self.__normalColor)
else:
gradient.setColorAt(0.0, self.__normalColor)
gradient.setColorAt(0.49, self.__normalColor)
gradient.setColorAt(0.50, self.__pressedColor)
gradient.setColorAt(1.0, self.__pressedColor)
painter.setBrush(gradient)
elif self.__colorMode == ColorButton.ColorMode.ColorMode_Shade:
gradient: QLinearGradient = QLinearGradient(QPoint(0, 0), QPoint(0, self.height()))
if self.__isPressed:
gradient.setColorAt(0.0, self.__pressedColor)
gradient.setColorAt(1.0, self.__normalColor)
else:
gradient.setColorAt(0.0, self.__normalColor)
gradient.setColorAt(1.0, self.__pressedColor)
painter.setBrush(gradient)
painter.drawRoundedRect(rect, self.__borderRadius, self.__borderRadius)
painter.restore()
def draw_tron_extended_background(self, painter, c, w, h, bounding_rect):
"""
:param painter: painter from paint event
:param c: NodeInstance's theme color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
"""
# main rect
background_color = QColor('#212224')
painter.setBrush(background_color)
pen = QPen(c)
pen.setWidth(2)
painter.setPen(pen)
body_path = self.get_extended_body_path_TRON_DESIGN(10, w, h)
painter.drawPath(body_path)
header_gradient = QLinearGradient(
self.get_header_rect(w, h).topRight(),
self.get_header_rect(w, h).bottomLeft())
header_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(),
255))
header_gradient.setColorAt(0.5,
QColor(c.red(), c.green(), c.blue(), 100))
header_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 0))
painter.setBrush(header_gradient)
header_path = self.get_extended_header_path_TRON_DESIGN(10, w, h)
painter.drawPath(header_path)
def draw_NI_extended_background(painter, c, w, h, bounding_rect,
title_rect):
"""
:param painter: painter from paint event
:param c: NodeInstance's theme color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
:param title_rect: NI's title label's bounding rect
"""
background_color = QColor('#212224')
painter.setBrush(background_color)
pen = QPen(c)
pen.setWidth(2)
painter.setPen(pen)
body_path = NIPainter_DarkTron.get_extended_body_path(w, h)
painter.drawPath(body_path)
header_gradient = QLinearGradient(
NIPainter_DarkTron.get_header_rect(w, h, title_rect).topRight(),
NIPainter_DarkTron.get_header_rect(w, h, title_rect).bottomLeft())
header_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(),
255))
header_gradient.setColorAt(0.5,
QColor(c.red(), c.green(), c.blue(), 100))
header_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 0))
painter.setBrush(header_gradient)
header_path = NIPainter_DarkTron.get_extended_header_path(
w, h, title_rect)
painter.drawPath(header_path)
def __init__(self, parent=None):
super().__init__(parent)
self.gradient = QLinearGradient(0, 0, 0, self.height())
self.labels = {}
self.margin = 10
self._barThickness = 20
self._labelMargin = 2
self._maxLabelWidth = None
self._maxLabelHeight = None
self._orientation = 'Vertical'
self.setStyleSheet("background-color: rgba(255,0,255,0)")
self.setAttribute(Qt.WA_NoSystemBackground)
def drawGradient(self, qp):
gradient = QLinearGradient(QPointF(200,15), QPointF(600,60))
gradient.setColorAt(0,Qt.blue)
gradient.setColorAt(0.25,Qt.cyan)
gradient.setColorAt(0.5,Qt.green)
gradient.setColorAt(0.75,Qt.yellow)
gradient.setColorAt(1,Qt.red)
qp.setBrush(gradient)
qp.drawRect(200, 15, 600, 60)
qp.setFont(QFont('Arial', 8))
qp.setBrush(Qt.black)
qp.drawText(200, 0, 205, 15, Qt.AlignLeft, "0")
qp.drawText(395, 0, 405, 15, Qt.AlignLeft, "0.5")
qp.drawText(595, 0, 600, 15, Qt.AlignLeft, "1")
def drawOverlay(self, painter: QPainter) -> None:
if not self.__showOverlay: return
radius: int = 80
painter.save()
painter.setPen(Qt.NoPen)
smallCircle: QPainterPath = QPainterPath()
bigCircle: QPainterPath = QPainterPath()
radius -= 1
smallCircle.addEllipse(-radius, -radius, radius * 2, radius * 2)
radius *= 2
bigCircle.addEllipse(-radius, -radius + 140, radius * 2, radius * 2)
# 高光的形状为小圆扣掉大圆的部分
highlight: QPainterPath = smallCircle - bigCircle
linearGradient: QLinearGradient = QLinearGradient(0, -radius / 2, 0, 0)
self.__overlayColor.setAlpha(100)
linearGradient.setColorAt(0.0, self.__overlayColor)
self.__overlayColor.setAlpha(30)
linearGradient.setColorAt(1.0, self.__overlayColor)
painter.setBrush(linearGradient)
painter.rotate(-20)
painter.drawPath(highlight)
painter.restore()
def showEvent(self, event: QShowEvent = None) -> None:
# 首次显示记住当前背景截图,用于获取颜色值
self.__bgPix = QPixmap(self.width(), self.height())
self.__bgPix.fill(Qt.transparent)
painter: QPainter = QPainter()
painter.begin(self.__bgPix)
linearGradient: QLinearGradient = QLinearGradient()
if self.__hsbMode:
# 起始坐标和结束坐标换个位置可改变颜色顺序
linearGradient.setStart(
QPoint(self.__bgRect.x(), self.__bgRect.height()))
linearGradient.setFinalStop(
QPoint(self.__bgRect.x(), self.__bgRect.y()))
# 由下往上,饱和度百分值由0增加到1.0
for i in [i * 0.0625 for i in range(17)]:
linearGradient.setColorAt(i, QColor.fromHsvF(i, 1, 1, 1))
else:
linearGradient.setStart(QPointF(0, 0))
linearGradient.setFinalStop(QPointF(0, self.height()))
linearGradient.setColorAt(0.0, self.__topColor)
linearGradient.setColorAt(1.0, self.__bottomColor)
painter.setPen(Qt.NoPen)
painter.setBrush(linearGradient)
rect: QRect = QRect(self.__borderWidth // 2, self.__borderWidth // 2,
self.width() - self.__borderWidth,
self.height() - self.__borderWidth)
painter.drawRect(rect)
painter.end()
self.initColor()
def showEvent(self, event: QShowEvent = None) -> None:
width: int = self.width()
height: int = self.height()
# 首次显示记住当前背景截图,用于获取颜色值
self.__bgPix = QPixmap(width, height)
self.__bgPix.fill(Qt.transparent)
painter: QPainter = QPainter()
painter.begin(self.__bgPix)
colorStart: QColor = QColor()
colorCenter: QColor = QColor()
colorEnd: QColor = QColor()
for i in range(width):
colorStart.setHslF(i / width, 1, 0)
colorCenter.setHslF(i / width, 1, 0.5)
colorEnd.setHslF(i / width, 1, 1)
linearGradient: QLinearGradient = QLinearGradient()
linearGradient.setStart(QPointF(i, -height))
linearGradient.setFinalStop(QPointF(i, height))
linearGradient.setColorAt(0.0, colorStart)
linearGradient.setColorAt(0.5, colorCenter)
linearGradient.setColorAt(1.0, colorEnd)
painter.setPen(QPen(linearGradient, 1))
painter.drawLine(QPointF(i, 0), QPointF(i, height))
painter.end()
def initForm(self) -> None:
brush: QLinearGradient = QLinearGradient(0, 0,
self.progressTip1.width(),
0)
brush.setColorAt(0, "#49AFFB")
brush.setColorAt(1, "#5D51FF")
self.progressTip1.valueBrush = QBrush(brush)
brush.setColorAt(0, "#32B9CF")
brush.setColorAt(1, "#C13256")
self.progressTip2.valueBrush = QBrush(brush)
brush.setColorAt(0, "#C13256")
brush.setColorAt(1, "#32B9CF")
self.progressTip3.valueBrush = QBrush(brush)
self.progressTip3.radius = 7
self.progressTip4.radius = 7
self.progressTip3.valueColor = QColor("#FA358A")
self.progressTip4.valueColor = QColor("#2EA3EF")
self.progressTip3.tipColor = QColor("#FA358A")
self.progressTip4.tipColor = QColor("#2EA3EF")
self.horizontalSlider.valueChanged.connect(
self.progressTip1.setValue)
self.horizontalSlider.valueChanged.connect(
self.progressTip2.setValue)
self.horizontalSlider.valueChanged.connect(
self.progressTip3.setValue)
self.horizontalSlider.valueChanged.connect(
self.progressTip4.setValue)
self.horizontalSlider.setValue(88)
self.horizontalSlider.setMaximum(100)
def drawBg(self, painter: QPainter) -> None:
painter.save()
painter.setPen(Qt.NoPen)
bgGradient: QLinearGradient = QLinearGradient(QPoint(0, 0), QPoint(0, self.height()))
bgGradient.setColorAt(0.0, self.__bgColorStart)
bgGradient.setColorAt(1.0, self.__bgColorEnd)
painter.setBrush(bgGradient)
painter.drawRect(self.rect())
painter.restore()
def __init__(self, q, parent=None, leftText='ON', rightText='OFF'):
QObject.__init__(self, parent=parent)
self.leftText = leftText
self.rightText = rightText
self.mPointer = q
self.mPosition = 0.0
self.mGradient = QLinearGradient()
self.mGradient.setSpread(QGradient.PadSpread)
self.animation = QPropertyAnimation(self)
self.animation.setTargetObject(self)
self.animation.setPropertyName(b'position')
self.animation.setStartValue(0.0)
self.animation.setEndValue(1.0)
self.animation.setDuration(200)
self.animation.setEasingCurve(QEasingCurve.InOutExpo)
self.animation.finished.connect(self.mPointer.update)
def drawCircle(self, painter: QPainter) -> None:
radius: int = self.__radiusCircle
painter.save()
painter.setPen(Qt.NoPen)
bgGradient: QLinearGradient = QLinearGradient(0, -radius, 0, radius)
bgGradient.setColorAt(0.0, self.__circleColorStart)
bgGradient.setColorAt(1.0, self.__circleColorEnd)
painter.setBrush(bgGradient)
painter.drawEllipse(-radius, -radius, radius * 2, radius * 2)
painter.restore()
def drawBorderIn(self, painter: QPainter) -> None:
radius: int = 90
painter.save()
painter.setPen(Qt.NoPen)
borderGradient: QLinearGradient = QLinearGradient(
0, -radius, 0, radius)
borderGradient.setColorAt(0, self.__borderInColorStart)
borderGradient.setColorAt(1, self.__borderInColorEnd)
painter.setBrush(borderGradient)
painter.drawEllipse(-radius, -radius, radius * 2, radius * 2)
painter.restore()
def __init__(self,
viewer: ColorTransferFunctionViewer,
begin_point: ColorTransferFunctionPoint,
end_point: ColorTransferFunctionPoint,
parent: QGraphicsItem = None):
super().__init__(parent)
self.viewer = viewer
self._begin_point = None
self._end_point = None
self.chart = self.viewer.chart
self.brush_gradient = QLinearGradient()
self.brush_gradient.setStart(QPointF(0, 0))
self.brush_gradient.setFinalStop(QPointF(1, 0))
self.brush_gradient.setCoordinateMode(QGradient.ObjectMode)
self.setPen(QColor('#404040'))
self.begin_point = begin_point
self.end_point = end_point
def paintEngine(self):
myGradient = QLinearGradient()
myPen = QPen()
myPolygon = QPolygonF()
myPath = QPainterPath()
myPath.addPolygon(myPolygon)
painter = QPainter()
painter.setBrush(myGradient)
painter.setPen(myPen)
painter.drawPath(myPath)
def draw_dark_extended_background(self, painter):
c = self.parent_node.color
# main rect
body_gradient = QRadialGradient(self.boundingRect().topLeft(),
pythagoras(self.height, self.width))
body_gradient.setColorAt(
0,
QColor(c.red() / 10 + 100,
c.green() / 10 + 100,
c.blue() / 10 + 100, 200))
body_gradient.setColorAt(
1,
QColor(c.red() / 10 + 100,
c.green() / 10 + 100,
c.blue() / 10 + 100, 0))
painter.setBrush(body_gradient)
painter.setPen(Qt.NoPen)
painter.drawRoundedRect(self.boundingRect(), 12, 12)
header_gradient = QLinearGradient(self.get_header_rect().topRight(),
self.get_header_rect().bottomLeft())
header_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(),
255))
header_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 0))
painter.setBrush(header_gradient)
painter.setPen(Qt.NoPen)
painter.drawRoundedRect(self.get_header_rect(), 12, 12)
def draw_NI_minimalistic(painter, c, w, h, bounding_rect):
"""
:param painter: painter from paint event
:param c: color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
"""
path = QPainterPath()
path.moveTo(-w / 2, 0)
path.cubicTo(-w / 2, -h / 2, -w / 2, -h / 2, 0, -h / 2)
path.cubicTo(+w / 2, -h / 2, +w / 2, -h / 2, +w / 2, 0)
path.cubicTo(+w / 2, +h / 2, +w / 2, +h / 2, 0, +h / 2)
path.cubicTo(-w / 2, +h / 2, -w / 2, +h / 2, -w / 2, 0)
path.closeSubpath()
body_gradient = QLinearGradient(bounding_rect.bottomLeft(),
bounding_rect.topRight())
body_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(), 150))
body_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 80))
painter.setBrush(body_gradient)
painter.setPen(QPen(QColor(30, 43, 48)))
painter.drawPath(path)
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 _updateSignalColor(self, signalName, newColor):
chIter = QTreeWidgetItemIterator(self.chSelector,
QTreeWidgetItemIterator.Checked)
while chIter.value():
if chIter.value().text(0) == signalName:
sColor = QColor(newColor)
sColor.setAlpha(100)
chIter.value().setBackgroundColor(0, sColor)
chIter += 1
sIter = QTreeWidgetItemIterator(self.sSelector)
while sIter.value():
if sIter.value().text(0) == signalName:
sColor = QColor(newColor)
sColor.setAlpha(100)
sGradient = QLinearGradient(0, 0, 100, 10)
sGradient.setColorAt(0, sColor)
sGradient.setColorAt(1, Qt.white)
sBrush = QBrush(sGradient)
sBrush.setStyle(Qt.LinearGradientPattern)
sBrush.setColor(sColor)
sIter.value().setBackground(0, sBrush)
if sIter.value() is self.curSelect:
self.prevBackGround = sIter.value().background(0)
sIter += 1
self.changeCurrentSelect(self.curSelect)
def draw_dark_minimalistic(self, painter):
path = QPainterPath()
path.moveTo(-self.width / 2, 0)
path.cubicTo(-self.width / 2, -self.height / 2,
-self.width / 2, -self.height / 2,
0, -self.height / 2)
path.cubicTo(+self.width / 2, -self.height / 2,
+self.width / 2, -self.height / 2,
+self.width / 2, 0)
path.cubicTo(+self.width / 2, +self.height / 2,
+self.width / 2, +self.height / 2,
0, +self.height / 2)
path.cubicTo(-self.width / 2, +self.height / 2,
-self.width / 2, +self.height / 2,
-self.width / 2, 0)
path.closeSubpath()
c = self.parent_node.color
body_gradient = QLinearGradient(self.boundingRect().bottomLeft(),
self.boundingRect().topRight())
body_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(), 150))
body_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 80))
painter.setBrush(body_gradient)
painter.setPen(QPen(QColor(30, 43, 48)))
painter.drawPath(path)
def drawBar(self, painter: QPainter) -> None:
""" 绘制当前条目选中背景 """
painter.save()
pen: QPen = QPen() # PySide2.QtGui.QPen
barGradient: QLinearGradient = QLinearGradient(
self.__barRect.topLeft(), self.__barRect.bottomLeft())
barGradient.setColorAt(0.0, self.__barColorStart)
barGradient.setColorAt(1.0, self.__barColorEnd)
painter.setBrush(barGradient)
if self.barStyle == NavBar.BarStyle.BARSTYLE_RECT:
painter.setPen(Qt.NoPen)
painter.drawRoundedRect(self.__barRect, self.__barRadius,
self.__barRadius)
painter.restore()
return
else:
pen.setWidthF(self.__lineWidth)
pen.setBrush(barGradient)
painter.setPen(pen)
painter.drawRoundedRect(self.__barRect, self.__barRadius,
self.__barRadius)
pen.setColor(self.__lineColor)
painter.setPen(pen)
offset: Decimal = Decimal(self.__lineWidth) / 2
if self.__barStyle == NavBar.BarStyle.BARSTYLE_LINE_TOP:
painter.drawLine(int(self.__barRect.left()),
self.__barRect.top() + offset,
int(self.__barRect.right()),
self.__barRect.top() + offset)
elif self.__barStyle == NavBar.BarStyle.BARSTYLE_LINE_TOP:
painter.drawLine(self.__barRect.right() - offset,
int(self.__barRect.top()),
self.__barRect.right() - offset,
int(self.__barRect.bottom()))
elif self.__barStyle == NavBar.BarStyle.BARSTYLE_LINE_TOP:
painter.drawLine(int(self.__barRect.left()),
self.__barRect.bottom() - offset,
int(self.__barRect.right()),
self.__barRect.bottom() - offset)
elif self.__barStyle == NavBar.BarStyle.BARSTYLE_LINE_TOP:
painter.drawLine(self.__barRect.left() + offset,
int(self.__barRect.top()),
self.__barRect.left() + offset,
int(self.__barRect.bottom()))
# 这里还可以增加右侧倒三角型
painter.restore()
def draw_blender_extended_background(self, painter, c, w, h,
bounding_rect):
"""
:param painter: painter from paint event
:param c: NodeInstance's theme color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
"""
background_color = QColor(100, 100, 100, 150)
header_color = QColor(c.red(), c.green(), c.blue(), 180)
rel_header_height = self.get_header_rect(w, h).height() / h
gradient = QLinearGradient(bounding_rect.topLeft(),
bounding_rect.bottomLeft())
gradient.setColorAt(0, header_color)
gradient.setColorAt(rel_header_height, header_color)
gradient.setColorAt(rel_header_height + 0.0001, background_color)
gradient.setColorAt(1, background_color)
painter.setBrush(gradient)
painter.setPen(QPen(c.darker()))
painter.drawRoundedRect(bounding_rect, 7, 7)
def draw_tron_extended_background(self, painter):
# main rect
c = QColor('#212224')
painter.setBrush(c)
pen = QPen(self.parent_node.color)
pen.setWidth(2)
painter.setPen(pen)
body_path = self.get_extended_body_path_TRON_DESIGN(10)
painter.drawPath(body_path)
# painter.drawRoundedRect(self.boundingRect(), 12, 12)
c = self.parent_node.color
header_gradient = QLinearGradient(self.get_header_rect().topRight(), self.get_header_rect().bottomLeft())
header_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(), 255))
header_gradient.setColorAt(0.5, QColor(c.red(), c.green(), c.blue(), 100))
header_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 0))
painter.setBrush(header_gradient)
header_path = self.get_extended_header_path_TRON_DESIGN(10)
painter.drawPath(header_path)
def _draw_bar_background(self, p: QPainter):
"""
绘制导航栏的背景
:param p: 画刷
:return: None
"""
p.save()
p.setPen(Qt.NoPen)
lgt = QLinearGradient(QPointF(0, 0), QPointF(0, self.height()))
lgt.setColorAt(0.0, self._m_bar_start_color)
lgt.setColorAt(1.0, self._m_bar_end_color)
p.setBrush(lgt)
p.drawRoundedRect(self.rect(), self._m_bar_radius, self._m_bar_radius)
p.restore()
def drawBg(self, painter: QPainter) -> None:
painter.save()
# 不可用背景灰色
if self.isEnabled():
linearGradient: QLinearGradient = QLinearGradient()
if self.__hsbMode:
# 起始坐标和结束坐标换个位置可改变颜色顺序
linearGradient.setStart(
QPoint(self.__bgRect.x(), self.__bgRect.height()))
linearGradient.setFinalStop(
QPoint(self.__bgRect.x(), self.__bgRect.y()))
# 由下往上,饱和度百分值由0增加到1.0
for i in [i * 0.0625 for i in range(17)]:
linearGradient.setColorAt(i, QColor.fromHsvF(i, 1, 1, 1))
painter.setPen(Qt.NoPen)
else:
linearGradient.setStart(QPointF(0, 0))
linearGradient.setFinalStop(QPointF(0, self.height()))
linearGradient.setColorAt(0.0, self.__topColor)
linearGradient.setColorAt(1.0, self.__bottomColor)
pen: QPen = QPen()
pen.setWidthF(self.__borderWidth)
pen.setColor(self.__borderColor)
pen.setCapStyle(Qt.RoundCap)
pen.setJoinStyle(Qt.RoundJoin)
painter.setPen(pen)
painter.setBrush(linearGradient)
else:
painter.setPen(Qt.NoPen)
painter.setBrush(self.__disableColor)
painter.drawRoundedRect(self.__bgRect, self.__borderRadius,
self.__borderRadius)
painter.restore()
def __init__(self, parent, scene: QGraphicsScene):
super().__init__(parent)
self.setRenderHints(QPainter.Antialiasing)
self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)
self.setCacheMode(QGraphicsView.CacheBackground)
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
gradient = QLinearGradient(self.rect().topLeft(),
self.rect().bottomRight())
gradient.setColorAt(0, Qt.white)
gradient.setColorAt(1, Qt.lightGray)
self.setCursor(Qt.CrossCursor) # 设置鼠标
self.setMouseTracking(True)
self.setDragMode(QGraphicsView.RubberBandDrag)
self.setBackgroundBrush(gradient)
self.setScene(scene)
self.setAttribute(Qt.WA_DeleteOnClose)
def draw_NI_extended_background(painter, c, w, h, bounding_rect,
title_rect):
"""
:param painter: painter from paint event
:param c: NodeInstance's theme color
:param w: width
:param h: height
:param bounding_rect: NodeInstance's bounding rect
:param title_rect: NI's title label's bounding rect
"""
# main rect
body_gradient = QRadialGradient(bounding_rect.topLeft(),
pythagoras(h, w))
body_gradient.setColorAt(
0,
QColor(c.red() / 10 + 100,
c.green() / 10 + 100,
c.blue() / 10 + 100, 200))
body_gradient.setColorAt(
1,
QColor(c.red() / 10 + 100,
c.green() / 10 + 100,
c.blue() / 10 + 100, 0))
painter.setBrush(body_gradient)
painter.setPen(Qt.NoPen)
painter.drawRoundedRect(bounding_rect, 12, 12)
header_gradient = QLinearGradient(
NIPainter_DarkStd.get_header_rect(w, h, title_rect).topRight(),
NIPainter_DarkStd.get_header_rect(w, h, title_rect).bottomLeft())
header_gradient.setColorAt(0, QColor(c.red(), c.green(), c.blue(),
255))
header_gradient.setColorAt(1, QColor(c.red(), c.green(), c.blue(), 0))
painter.setBrush(header_gradient)
painter.setPen(Qt.NoPen)
painter.drawRoundedRect(
NIPainter_DarkStd.get_header_rect(w, h, title_rect), 12, 12)
def paintEvent(self, a0: QtGui.QPaintEvent) -> None:
"""
重载paintEvent函数
:param a0:
:return:
"""
p = QPainter(self)
p.setRenderHint(QPainter.Antialiasing)
p.save()
p.setPen(Qt.NoPen)
lgt = QLinearGradient(QPointF(0, 0), QPointF(self.width(), 0))
lgt.setColorAt(0.0, QColor('#511235'))
lgt.setColorAt(1.0, QColor('red'))
p.setBrush(lgt)
p.drawRect(QRectF(0, 0, self.width(), self._m_title_height))
p.drawRect(
QRectF(0,
self.height() - self._m_status_label.height(),
self.rect().width(), self._m_status_label.height()))
line_pen = QPen()
line_pen.setColor(QColor(30, 144, 255, 30))
line_pen.setWidth(1)
p.setPen(line_pen)
p.drawLine(0,
self.rect().height() - self._m_status_label.height(),
self.rect().width(),
self.rect().height() - self._m_status_label.height())
# 在窗口左上角画图标
if self._m_icon_path:
imx = QPixmap(self._m_icon_path)
p.drawPixmap(5, (self._m_title_label.height() - imx.height()) / 2,
imx)
p.restore()
def paint(self, painter: QPainter, option: QStyleOptionGraphicsItem, widget: QWidget = None):
# setup border pen
pen = painter.pen()
pen.setWidthF(self.monitor_border_width)
pen.setCapStyle(Qt.FlatCap)
painter.setPen(pen)
# create monitor_rect
rect_monitor = QRectF(0, 0,
self.monitor.screen_width, self.monitor.screen_height)
# Draw gradient in the background
gradient = QLinearGradient(rect_monitor.topRight(), rect_monitor.bottomLeft())
gradient.setColorAt(0.0, self.monitor_color_gradient_top)
gradient.setColorAt(1.0, self.monitor_color_gradient_bottom)
painter.fillRect(rect_monitor, gradient)
# draw monitor label
self.draw_monitor_label(painter, rect_monitor, self.index)
# draw borders inside monitor_rect
border_offset = painter.pen().widthF() / 2
border_rect = rect_monitor.adjusted(border_offset, border_offset, -border_offset, border_offset)
painter.drawRect(border_rect)