def paintEvent(self, event):
'''Paint widget.'''
painter = QtGui.QPainter()
painter.begin(self)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
area = QtCore.QRect(0, 0,
painter.device().width(),
painter.device().height())
center = QtCore.QPointF(area.width() / 2.0, area.height() / 2.0)
# Draw in a normalised centered box.
normalisedEdge = 100.0
normalisedArea = QtCore.QRectF(-(normalisedEdge / 2.0),
-(normalisedEdge / 2.0),
normalisedEdge, normalisedEdge)
shortestSide = min(area.width(), area.height())
painter.translate(center)
painter.scale(shortestSide / normalisedEdge,
shortestSide / normalisedEdge)
# Draw logo.
svgRenderer = QtSvg.QSvgRenderer()
svgRenderer.load(self._logo)
logoMargin = 30.0
logoArea = normalisedArea.adjusted(logoMargin, logoMargin,
-logoMargin, -logoMargin)
svgRenderer.render(painter, logoArea)
# Draw spinner at current spin angle.
pen = QtGui.QPen()
penWidth = 5.0
pen.setWidth(penWidth)
gradient = QtGui.QConicalGradient(QtCore.QPoint(0, 0),
-self._spinnerAngle)
gradient.setColorAt(0.95, QtCore.Qt.transparent)
gradient.setColorAt(0, self._spinnerColor)
brush = QtGui.QBrush(gradient)
pen.setBrush(brush)
painter.setPen(pen)
spinnerArea = QtCore.QRectF(
normalisedArea.top() + (penWidth / 2.0),
normalisedArea.left() + (penWidth / 2.0),
normalisedArea.width() - penWidth,
normalisedArea.height() - penWidth)
painter.drawArc(
spinnerArea,
0, # Start angle.
360 * 16 # Span angle.
)
finally:
painter.end()
def paintEvent(self, event):
'''Override paint event to make round thumbnails.'''
painter = QtGui.QPainter(self)
painter.setRenderHints(QtGui.QPainter.Antialiasing, True)
brush = QtGui.QBrush(self.pixmap())
painter.setBrush(brush)
painter.setPen(QtGui.QPen(QtGui.QColor(0, 0, 0, 0)))
painter.drawEllipse(QtCore.QRectF(0, 0, self.width(), self.height()))
def loadResource(self, resource):
'''Update current pixmap using *resource*.'''
svg_renderer = QtSvg.QSvgRenderer(resource)
image = QtGui.QImage(self.size, self.size, QtGui.QImage.Format_ARGB32)
# Set the ARGB to 0 to prevent rendering artifacts.
image.fill(0x00000000)
svg_renderer.render(QtGui.QPainter(image),
QtCore.QRectF(0, 0, self.size, self.size))
pixmap = QtGui.QPixmap.fromImage(image)
self._fillColor(pixmap)
self._scaleAndSetPixmap(pixmap)
def paintEvent(self, event):
'''Paint widget.'''
painter = QtGui.QPainter()
painter.begin(self)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
area = QtCore.QRect(
0, 0, painter.device().width(), painter.device().height()
)
center = QtCore.QPointF(
area.width() / 2.0,
area.height() / 2.0
)
# Draw in a normalised centered box.
normalisedEdge = 100.0
normalisedArea = QtCore.QRectF(
-(normalisedEdge / 2.0), -(normalisedEdge / 2.0),
normalisedEdge, normalisedEdge
)
shortestSide = min(area.width(), area.height())
painter.translate(center)
painter.scale(
shortestSide / normalisedEdge,
shortestSide / normalisedEdge
)
# Draw spinner at current spin angle.
pen = QtGui.QPen()
penWidth = 8.0
pen.setWidth(penWidth)
pen.setColor(self._spinnerColor)
pen.setCapStyle(QtCore.Qt.RoundCap)
gradient = QtGui.QConicalGradient(
QtCore.QPoint(0, 0),
-self._spinnerAngle
)
gradient.setColorAt(0.95, self._spinnerColor)
gradient.setColorAt(0, self._spinnerColor)
brush = QtGui.QBrush(gradient)
pen.setBrush(brush)
painter.setPen(pen)
spinnerArea = QtCore.QRectF(
normalisedArea.top() + (penWidth / 2.0),
normalisedArea.left() + (penWidth / 2.0),
normalisedArea.width() - penWidth,
normalisedArea.height() - penWidth
)
painter.drawArc(
spinnerArea,
-self._spinnerAngle * 16, # Start angle.
250 * 16 # Span angle.
)
finally:
painter.end()
