def qwtDrawStar1Symbols(painter, points, numPoints, symbol):
size =symbol.size()
painter.setPen(symbol.pen())
sqrt1_2 = np.sqrt(.5)
if QwtPainter.roundingAlignment(painter):
r = QRect(0, 0, size.width(), size.height())
for pos in points:
r.moveCenter(pos.toPoint())
d1 = r.width()/2.*(1.-sqrt1_2)
QwtPainter.drawLine(painter,
round(r.left()+d1), round(r.top()+d1),
round(r.right()-d1), round(r.bottom()-d1))
QwtPainter.drawLine(painter,
round(r.left()+d1), round(r.bottom()-d1),
round(r.right()-d1), round(r.top()+d1))
c = QPoint(r.center())
QwtPainter.drawLine(painter, c.x(), r.top(), c.x(), r.bottom())
QwtPainter.drawLine(painter, r.left(), c.y(), r.right(), c.y())
else:
r = QRectF(0, 0, size.width(), size.height())
for pos in points:
r.moveCenter(pos.toPoint())
c = QPointF(r.center())
d1 = r.width()/2.*(1.-sqrt1_2)
QwtPainter.drawLine(painter, r.left()+d1, r.top()+d1,
r.right()-d1, r.bottom()-d1)
QwtPainter.drawLine(painter, r.left()+d1, r.bottom()-d1,
r.right()-d1, r.top()+d1)
QwtPainter.drawLine(painter, c.x(), r.top(), c.x(), r.bottom())
QwtPainter.drawLine(painter, r.left(), c.y(), r.right(), c.y())
def fillPixmap(self, widget, pixmap, offset=None):
"""
Fill a pixmap with the content of a widget
In Qt >= 5.0 `QPixmap.fill()` is a nop, in Qt 4.x it is buggy
for backgrounds with gradients. Thus `fillPixmap()` offers
an alternative implementation.
:param QWidget widget: Widget
:param QPixmap pixmap: Pixmap to be filled
:param QPoint offset: Offset
.. seealso::
:py:meth:`QPixmap.fill()`
"""
if offset is None:
offset = QPoint()
rect = QRect(offset, pixmap.size())
painter = QPainter(pixmap)
painter.translate(-offset)
autoFillBrush = widget.palette().brush(widget.backgroundRole())
if not (widget.autoFillBackground() and autoFillBrush.isOpaque()):
bg = widget.palette().brush(QPalette.Window)
qwtFillRect(widget, painter, rect, bg)
if widget.autoFillBackground():
qwtFillRect(widget, painter, rect, autoFillBrush)
if widget.testAttribute(Qt.WA_StyledBackground):
painter.setClipRegion(rect)
opt = QStyleOption()
opt.initFrom(widget)
widget.style().drawPrimitive(QStyle.PE_Widget, opt, painter,
widget)
def boundingLabelRect(self, font, value):
lbl = self.tickLabel(font, value)
if lbl.isEmpty():
return QRect()
pos = self.labelPosition(value)
labelSize = lbl.textSize(font)
transform = self.labelTransformation(pos, labelSize)
return transform.mapRect(QRect(QPoint(0, 0), labelSize.toSize()))
def __moveBy(self, dx, dy):
if dx == 0 and dy == 0:
return
curve = self.__selectedCurve
if not curve:
return
s = curve.sample(self.__selectedPoint)
x = self.__plot.transform(curve.xAxis(), s.x()) + dx
y = self.__plot.transform(curve.yAxis(), s.y()) + dy
self.__move(QPoint(x, y))
def drawLabel(self, painter, value):
lbl = self.tickLabel(painter.font(), value)
if lbl is None or lbl.isEmpty():
return
pos = self.labelPosition(value)
labelSize = lbl.textSize(painter.font())
transform = self.labelTransformation(pos, labelSize)
painter.save()
painter.setWorldTransform(transform, True)
lbl.draw(painter, QRect(QPoint(0, 0), labelSize.toSize()))
painter.restore()
def fillPixmap(self, widget, pixmap, offset=None):
if offset is None:
offset = QPoint()
rect = QRect(offset, pixmap.size())
painter = QPainter(pixmap)
painter.translate(-offset)
autoFillBrush = widget.palette().brush(widget.backgroundRole())
if not (widget.autoFillBackground() and autoFillBrush.isOpaque()):
bg = widget.palette().brush(QPalette.Window)
qwtFillRect(widget, painter, rect, bg)
if widget.autoFillBackground():
qwtFillRect(widget, painter, rect, autoFillBrush)
if widget.testAttribute(Qt.WA_StyledBackground):
painter.setClipRegion(rect)
opt = QStyleOption()
opt.initFrom(widget)
widget.style().drawPrimitive(QStyle.PE_Widget, opt, painter,
widget)
def paintEvent(self, e):
cr = self.contentsRect()
painter = QPainter(self)
painter.setClipRegion(e.region())
if self.__data.isDown:
qDrawWinButton(painter, 0, 0, self.width(), self.height(),
self.palette(), True)
painter.save()
if self.__data.isDown:
shiftSize = buttonShift(self)
painter.translate(shiftSize.width(), shiftSize.height())
painter.setClipRect(cr)
self.drawContents(painter)
if not self.__data.icon.isNull():
iconRect = QRect(cr)
iconRect.setX(iconRect.x() + self.margin())
if self.__data.itemMode != QwtLegendData.ReadOnly:
iconRect.setX(iconRect.x() + BUTTONFRAME)
iconRect.setSize(self.__data.icon.size())
iconRect.moveCenter(QPoint(iconRect.center().x(), cr.center().y()))
painter.drawPixmap(iconRect, self.__data.icon)
painter.restore()
def boundingLabelRect(self, font, value):
"""
Find the bounding rectangle for the label.
The coordinates of the rectangle are absolute (calculated from
`pos()`) in direction of the tick.
:param QFont font: Font used for painting
:param float value: Value
:return: Bounding rectangle
.. seealso::
:py:meth:`labelRect()`
"""
lbl = self.tickLabel(font, value)
if lbl.isEmpty():
return QRect()
pos = self.labelPosition(value)
labelSize = lbl.textSize(font)
transform = self.labelTransformation(pos, labelSize)
return transform.mapRect(QRect(QPoint(0, 0), labelSize.toSize()))
def drawLabel(self, painter, value):
"""
Draws the label for a major scale tick
:param QPainter painter: Painter
:param float value: Value
.. seealso::
:py:meth:`drawTick()`, :py:meth:`drawBackbone()`,
:py:meth:`boundingLabelRect()`
"""
lbl = self.tickLabel(painter.font(), value)
if lbl is None or lbl.isEmpty():
return
pos = self.labelPosition(value)
labelSize = lbl.textSize(painter.font())
transform = self.labelTransformation(pos, labelSize)
painter.save()
painter.setWorldTransform(transform, True)
lbl.draw(painter, QRect(QPoint(0, 0), labelSize.toSize()))
painter.restore()
def qwtDrawStar1Symbols(painter, points, numPoints, symbol):
size = symbol.size()
painter.setPen(symbol.pen())
sqrt1_2 = np.sqrt(.5)
if QwtPainter.roundingAlignment(painter):
r = QRect(0, 0, size.width(), size.height())
for pos in points:
r.moveCenter(pos.toPoint())
d1 = r.width() / 2. * (1. - sqrt1_2)
QwtPainter.drawLine(painter, round(r.left() + d1),
round(r.top() + d1), round(r.right() - d1),
round(r.bottom() - d1))
QwtPainter.drawLine(painter, round(r.left() + d1),
round(r.bottom() - d1), round(r.right() - d1),
round(r.top() + d1))
c = QPoint(r.center())
QwtPainter.drawLine(painter, c.x(), r.top(), c.x(), r.bottom())
QwtPainter.drawLine(painter, r.left(), c.y(), r.right(), c.y())
else:
r = QRectF(0, 0, size.width(), size.height())
for pos in points:
r.moveCenter(pos.toPoint())
c = QPointF(r.center())
d1 = r.width() / 2. * (1. - sqrt1_2)
QwtPainter.drawLine(painter,
r.left() + d1,
r.top() + d1,
r.right() - d1,
r.bottom() - d1)
QwtPainter.drawLine(painter,
r.left() + d1,
r.bottom() - d1,
r.right() - d1,
r.top() + d1)
QwtPainter.drawLine(painter, c.x(), r.top(), c.x(), r.bottom())
QwtPainter.drawLine(painter, r.left(), c.y(), r.right(), c.y())