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 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 renderLegend(self, painter, rect, fillBackground):
if self.__data.itemMap.isEmpty():
return
if fillBackground:
if self.autoFillBackground() or\
self.testAttribute(Qt.WA_StyledBackground):
QwtPainter.drawBackground(painter, rect, self)
# const QwtDynGridLayout *legendLayout =
# qobject_cast<QwtDynGridLayout *>( contentsWidget()->layout() );
#TODO: not the exact same implementation
legendLayout = self.__data.view.contentsWidget.layout()
if legendLayout is None:
return
left, right, top, bottom = self.getContentsMargins()
layoutRect = QRect()
layoutRect.setLeft(np.ceil(rect.left()) + left)
layoutRect.setTop(np.ceil(rect.top()) + top)
layoutRect.setRight(np.ceil(rect.right()) - right)
layoutRect.setBottom(np.ceil(rect.bottom()) - bottom)
numCols = legendLayout.columnsForWidth(layoutRect.width())
itemRects = legendLayout.layoutItems(layoutRect, numCols)
index = 0
for i in range(legendLayout.count()):
item = legendLayout.itemAt(i)
w = item.widget()
if w is not None:
painter.save()
painter.setClipRect(itemRects[index], Qt.IntersectClip)
self.renderItem(painter, w, itemRects[index], fillBackground)
index += 1
painter.restore()
def renderLegend(self, painter, rect, fillBackground):
if self.__data.itemMap.isEmpty():
return
if fillBackground:
if self.autoFillBackground() or\
self.testAttribute(Qt.WA_StyledBackground):
QwtPainter.drawBackground(painter, rect, self)
# const QwtDynGridLayout *legendLayout =
# qobject_cast<QwtDynGridLayout *>( contentsWidget()->layout() );
#TODO: not the exact same implementation
legendLayout = self.__data.view.contentsWidget.layout()
if legendLayout is None:
return
left, right, top, bottom = self.getContentsMargins()
layoutRect = QRect()
layoutRect.setLeft(np.ceil(rect.left())+left)
layoutRect.setTop(np.ceil(rect.top())+top)
layoutRect.setRight(np.ceil(rect.right())-right)
layoutRect.setBottom(np.ceil(rect.bottom())-bottom)
numCols = legendLayout.columnsForWidth(layoutRect.width())
itemRects = legendLayout.layoutItems(layoutRect, numCols)
index = 0
for i in range(legendLayout.count()):
item = legendLayout.itemAt(i)
w = item.widget()
if w is not None:
painter.save()
painter.setClipRect(itemRects[index], Qt.IntersectClip)
self.renderItem(painter, w, itemRects[index], fillBackground)
index += 1
painter.restore()
def drawSymbol(self, painter, point_or_rect):
"""
Draw the symbol into a rectangle
The symbol is painted centered and scaled into the target rectangle.
It is always painted uncached and the pin point is ignored.
This method is primarily intended for drawing a symbol to the legend.
:param QPainter painter: Painter
:param point_or_rect: Position or target rectangle of the symbol in screen coordinates
:type point_or_rect: QPointF or QPoint or QRectF
"""
if isinstance(point_or_rect, (QPointF, QPoint)):
# drawSymbol( QPainter *, const QPointF & )
self.drawSymbols(painter, [point_or_rect])
return
# drawSymbol( QPainter *, const QRectF & )
rect = point_or_rect
assert isinstance(rect, QRectF)
if self.__data.style == QwtSymbol.NoSymbol:
return
if self.__data.style == QwtSymbol.Graphic:
self.__data.graphic.graphic.render(painter, rect,
Qt.KeepAspectRatio)
elif self.__data.style == QwtSymbol.Path:
if self.__data.path.graphic.isNull():
self.__data.path.graphic = qwtPathGraphic(
self.__data.path.path, self.__data.pen, self.__data.brush)
self.__data.path.graphic.render(painter, rect, Qt.KeepAspectRatio)
return
elif self.__data.style == QwtSymbol.SvgDocument:
if self.__data.svg.renderer is not None:
scaledRect = QRectF()
sz = QSizeF(self.__data.svg.renderer.viewBoxF().size())
if not sz.isEmpty():
sz.scale(rect.size(), Qt.KeepAspectRatio)
scaledRect.setSize(sz)
scaledRect.moveCenter(rect.center())
else:
scaledRect = rect
self.__data.svg.renderer.render(painter, scaledRect)
else:
br = QRect(self.boundingRect())
ratio = min(
[rect.width() / br.width(),
rect.height() / br.height()])
painter.save()
painter.translate(rect.center())
painter.scale(ratio, ratio)
isPinPointEnabled = self.__data.isPinPointEnabled
self.__data.isPinPointEnabled = False
pos = QPointF()
self.renderSymbols(painter, pos, 1)
self.__data.isPinPointEnabled = isPinPointEnabled
painter.restore()
def drawSymbol(self, painter, point_or_rect):
"""
Draw the symbol into a rectangle
The symbol is painted centered and scaled into the target rectangle.
It is always painted uncached and the pin point is ignored.
This method is primarily intended for drawing a symbol to the legend.
:param QPainter painter: Painter
:param point_or_rect: Position or target rectangle of the symbol in screen coordinates
:type point_or_rect: QPointF or QPoint or QRectF
"""
if isinstance(point_or_rect, (QPointF, QPoint)):
# drawSymbol( QPainter *, const QPointF & )
self.drawSymbols(painter, [point_or_rect])
return
# drawSymbol( QPainter *, const QRectF & )
rect = point_or_rect
assert isinstance(rect, QRectF)
if self.__data.style == QwtSymbol.NoSymbol:
return
if self.__data.style == QwtSymbol.Graphic:
self.__data.graphic.graphic.render(painter, rect,
Qt.KeepAspectRatio)
elif self.__data.style == QwtSymbol.Path:
if self.__data.path.graphic.isNull():
self.__data.path.graphic = qwtPathGraphic(
self.__data.path.path, self.__data.pen, self.__data.brush)
self.__data.path.graphic.render(painter, rect, Qt.KeepAspectRatio)
return
elif self.__data.style == QwtSymbol.SvgDocument:
if self.__data.svg.renderer is not None:
scaledRect = QRectF()
sz = QSizeF(self.__data.svg.renderer.viewBoxF().size())
if not sz.isEmpty():
sz.scale(rect.size(), Qt.KeepAspectRatio)
scaledRect.setSize(sz)
scaledRect.moveCenter(rect.center())
else:
scaledRect = rect
self.__data.svg.renderer.render(painter, scaledRect)
else:
br = QRect(self.boundingRect())
ratio = min([rect.width()/br.width(), rect.height()/br.height()])
painter.save()
painter.translate(rect.center())
painter.scale(ratio, ratio)
isPinPointEnabled = self.__data.isPinPointEnabled
self.__data.isPinPointEnabled = False
pos = QPointF()
self.renderSymbols(painter, pos, 1)
self.__data.isPinPointEnabled = isPinPointEnabled
painter.restore()
def drawSymbols(self, painter, points, numPoints=None):
"""
Render an array of symbols
Painting several symbols is more effective than drawing symbols
one by one, as a couple of layout calculations and setting of pen/brush
can be done once for the complete array.
:param QPainter painter: Painter
:param QPolygonF points: Positions of the symbols in screen coordinates
"""
#TODO: remove argument numPoints (not necessary in `PythonQwt`)
if numPoints is not None and numPoints <= 0:
return
useCache = False
if QwtPainter.roundingAlignment(painter) and\
not painter.transform().isScaling():
if self.__data.cache.policy == QwtSymbol.Cache:
useCache = True
elif self.__data.cache.policy == QwtSymbol.AutoCache:
if painter.paintEngine().type() == QPaintEngine.Raster:
useCache = True
else:
if self.__data.style in (QwtSymbol.XCross, QwtSymbol.HLine,
QwtSymbol.VLine, QwtSymbol.Cross):
pass
elif self.__data.style == QwtSymbol.Pixmap:
if not self.__data.size.isEmpty() and\
self.__data.size != self.__data.pixmap.pixmap.size():
useCache = True
else:
useCache = True
if useCache:
br = QRect(self.boundingRect())
rect = QRect(0, 0, br.width(), br.height())
if self.__data.cache.pixmap.isNull():
self.__data.cache.pixmap = QwtPainter.backingStore(
None, br.size())
self.__data.cache.pixmap.fill(Qt.transparent)
p = QPainter(self.__data.cache.pixmap)
p.setRenderHints(painter.renderHints())
p.translate(-br.topLeft())
pos = QPointF()
self.renderSymbols(p, pos, 1)
dx = br.left()
dy = br.top()
for point in points:
left = round(point.x()) + dx
top = round(point.y()) + dy
painter.drawPixmap(left, top, self.__data.cache.pixmap)
else:
painter.save()
self.renderSymbols(painter, points, numPoints)
painter.restore()
def drawSymbols(self, painter, points, numPoints=None):
"""
Render an array of symbols
Painting several symbols is more effective than drawing symbols
one by one, as a couple of layout calculations and setting of pen/brush
can be done once for the complete array.
:param QPainter painter: Painter
:param QPolygonF points: Positions of the symbols in screen coordinates
"""
#TODO: remove argument numPoints (not necessary in `PythonQwt`)
if numPoints is not None and numPoints <= 0:
return
useCache = False
if QwtPainter.roundingAlignment(painter) and\
not painter.transform().isScaling():
if self.__data.cache.policy == QwtSymbol.Cache:
useCache = True
elif self.__data.cache.policy == QwtSymbol.AutoCache:
if painter.paintEngine().type() == QPaintEngine.Raster:
useCache = True
else:
if self.__data.style in (QwtSymbol.XCross, QwtSymbol.HLine,
QwtSymbol.VLine, QwtSymbol.Cross):
pass
elif self.__data.style == QwtSymbol.Pixmap:
if not self.__data.size.isEmpty() and\
self.__data.size != self.__data.pixmap.pixmap.size():
useCache = True
else:
useCache = True
if useCache:
br = QRect(self.boundingRect())
rect = QRect(0, 0, br.width(), br.height())
if self.__data.cache.pixmap.isNull():
self.__data.cache.pixmap = QwtPainter.backingStore(None, br.size())
self.__data.cache.pixmap.fill(Qt.transparent)
p = QPainter(self.__data.cache.pixmap)
p.setRenderHints(painter.renderHints())
p.translate(-br.topLeft())
pos = QPointF()
self.renderSymbols(p, pos, 1)
dx = br.left()
dy = br.top()
for point in points:
left = round(point.x())+dx
top = round(point.y())+dy
painter.drawPixmap(left, top, self.__data.cache.pixmap)
else:
painter.save()
self.renderSymbols(painter, points, numPoints)
painter.restore()
def drawSymbols(self, painter, points, numPoints=None):
#TODO: remove argument numPoints (not necessary in Python's qwt)
if numPoints is not None and numPoints <= 0:
return
useCache = False
if QwtPainter.roundingAlignment(painter) and\
not painter.transform().isScaling():
if self.__data.cache.policy == QwtSymbol.Cache:
useCache = True
elif self.__data.cache.policy == QwtSymbol.AutoCache:
if painter.paintEngine().type() == QPaintEngine.Raster:
useCache = True
else:
if self.__data.style in (QwtSymbol.XCross, QwtSymbol.HLine,
QwtSymbol.VLine, QwtSymbol.Cross):
pass
elif self.__data.style == QwtSymbol.Pixmap:
if not self.__data.size.isEmpty() and\
self.__data.size != self.__data.pixmap.pixmap.size():
useCache = True
else:
useCache = True
if useCache:
br = QRect(self.boundingRect())
rect = QRect(0, 0, br.width(), br.height())
if self.__data.cache.pixmap.isNull():
self.__data.cache.pixmap = QwtPainter.backingStore(None, br.size())
self.__data.cache.pixmap.fill(Qt.transparent)
p = QPainter(self.__data.cache.pixmap)
p.setRenderHints(painter.renderHints())
p.translate(-br.topLeft())
pos = QPointF()
self.renderSymbols(p, pos, 1)
dx = br.left()
dy = br.top()
for point in points:
left = round(point.x())+dx
top = round(point.y())+dy
painter.drawPixmap(left, top, self.__data.cache.pixmap)
else:
painter.save()
self.renderSymbols(painter, points, numPoints)
painter.restore()
def drawSymbol(self, painter, point_or_rect):
if isinstance(point_or_rect, (QPointF, QPoint)):
# drawSymbol( QPainter *, const QPointF & )
self.drawSymbols(painter, [point_or_rect], 1)
return
# drawSymbol( QPainter *, const QRectF & )
rect = point_or_rect
assert isinstance(rect, QRectF)
if self.__data.style == QwtSymbol.NoSymbol:
return
if self.__data.style == QwtSymbol.Graphic:
self.__data.graphic.graphic.render(painter, rect,
Qt.KeepAspectRatio)
elif self.__data.style == QwtSymbol.Path:
if self.__data.path.graphic.isNull():
self.__data.path.graphic = qwtPathGraphic(
self.__data.path.path, self.__data.pen, self.__data.brush)
self.__data.path.graphic.render(painter, rect, Qt.KeepAspectRatio)
return
elif self.__data.style == QwtSymbol.SvgDocument:
if self.__data.svg.renderer is not None:
scaledRect = QRectF()
sz = QSizeF(self.__data.svg.renderer.viewBoxF().size())
if not sz.isEmpty():
sz.scale(rect.size(), Qt.KeepAspectRatio)
scaledRect.setSize(sz)
scaledRect.moveCenter(rect.center())
else:
scaledRect = rect
self.__data.svg.renderer.render(painter, scaledRect)
else:
br = QRect(self.boundingRect())
ratio = min([rect.width()/br.width(), rect.height()/br.height()])
painter.save()
painter.translate(rect.center())
painter.scale(ratio, ratio)
isPinPointEnabled = self.__data.isPinPointEnabled
self.__data.isPinPointEnabled = False
pos = QPointF()
self.renderSymbols(painter, pos, 1)
self.__data.isPinPointEnabled = isPinPointEnabled
painter.restore()
