def drawForeground(self, painter, rect):
if self._tiling is None:
return
tile_nos = self._tiling.intersected(rect)
for tileId in tile_nos:
p = self._brushingLayer[tileId]
if p.dataVer == p.imgVer:
continue
p.paint(painter) #access to the underlying image patch is serialized
## draw tile outlines
if self._showTileOutlines:
# Dashed black line
pen = QPen()
pen.setDashPattern([5,5])
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
# Dashed white line
# (offset to occupy the spaces in the dashed black line)
pen = QPen()
pen.setDashPattern([5,5])
pen.setDashOffset(5)
pen.setColor(QColor(Qt.white))
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
def paint(self, painter, option, widget=None):
"""
Paint a single line of the slice intersection marker.
"""
width = self._parent._width
height = self._parent._height
thickness = self._parent.PEN_THICKNESS
# Our pen thickness is consistent across zoom levels because the pen is "cosmetic"
# However, that doesn't ensure a consistent-size dash pattern.
# Determine the inverse scaling factor from scene to view to set a consistent dash pattern at all scales.
view = self.scene().views()[0]
inverted_transform, has_inverse = view.transform().inverted()
dash_length = 4 / inverted_transform.m11()
dash_length = max(0.5, dash_length)
# Draw the line with two pens to get a black-and-white dashed line.
#pen_white = QPen( Qt.white, thickness )
pen_white = QPen(self._parent._cropColor, thickness)
pen_white.setDashPattern([dash_length, dash_length])
pen_white.setCosmetic(True)
pen_black = QPen(Qt.black, thickness)
pen_black.setDashPattern([dash_length, dash_length])
pen_black.setCosmetic(True)
pen_black.setDashOffset(dash_length)
with painter_context(painter):
t = painter.transform()
painter.setTransform(self.scene().data2scene * t)
# Draw the line with two pens to get a black-and-white dashed line.
for pen in [pen_white, pen_black]:
painter.setPen(pen)
if self._direction == 'horizontal':
painter.drawLine(QPointF(0.0, self.position),
QPointF(width, self.position))
else:
painter.drawLine(QPointF(self.position, 0.0),
QPointF(self.position, height))
def paint(self, painter, option, widget=None):
"""
Paint a single line of the slice intersection marker.
"""
width = self._parent._width
height = self._parent._height
thickness = self._parent.PEN_THICKNESS
# Our pen thickness is consistent across zoom levels because the pen is "cosmetic"
# However, that doesn't ensure a consistent-size dash pattern.
# Determine the inverse scaling factor from scene to view to set a consistent dash pattern at all scales.
view = self.scene().views()[0]
inverted_transform, has_inverse = view.transform().inverted()
dash_length = 4 / inverted_transform.m11()
dash_length = max( 0.5, dash_length )
# Draw the line with two pens to get a black-and-white dashed line.
#pen_white = QPen( Qt.white, thickness )
pen_white = QPen( self._parent._cropColor, thickness )
pen_white.setDashPattern([dash_length, dash_length])
pen_white.setCosmetic(True)
pen_black = QPen( Qt.black, thickness )
pen_black.setDashPattern([dash_length, dash_length])
pen_black.setCosmetic(True)
pen_black.setDashOffset(dash_length)
with painter_context(painter):
t = painter.transform()
painter.setTransform(self.scene().data2scene * t)
# Draw the line with two pens to get a black-and-white dashed line.
for pen in [pen_white, pen_black]:
painter.setPen( pen )
if self._direction == 'horizontal':
painter.drawLine( QPointF(0.0, self.position), QPointF(width, self.position) )
else:
painter.drawLine( QPointF(self.position, 0.0), QPointF(self.position, height) )
def drawForeground(self, painter, rect):
if self._tiling is None:
return
if self._showTileOutlines:
tile_nos = self._tiling.intersected(rect)
for tileId in tile_nos:
## draw tile outlines
# Dashed black line
pen = QPen()
pen.setDashPattern([5,5])
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
# Dashed white line
# (offset to occupy the spaces in the dashed black line)
pen = QPen()
pen.setDashPattern([5,5])
pen.setDashOffset(5)
pen.setColor(QColor(Qt.white))
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
def drawForeground(self, painter, rect):
if self._tiling is None:
return
if self._showTileOutlines:
tile_nos = self._tiling.intersected(rect)
for tileId in tile_nos:
## draw tile outlines
# Dashed black line
pen = QPen()
pen.setDashPattern([5, 5])
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
# Dashed white line
# (offset to occupy the spaces in the dashed black line)
pen = QPen()
pen.setDashPattern([5, 5])
pen.setDashOffset(5)
pen.setColor(QColor(Qt.white))
painter.setPen(pen)
painter.drawRect(self._tiling.imageRects[tileId])
