/usr/lib/python2.7/dist-packages/vigra/pyqt/overlays.py is in python-vigra 1.10.0+git20160211.167be93+dfsg-5ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | import VigraQt
from PyQt4 import QtCore, QtGui
class Overlay(VigraQt.Overlay):
def __init__(self, color=QtCore.Qt.red, fillColor=None, width=0,
name=None, aa=False, parent=None):
VigraQt.Overlay.__init__(self, parent)
self.color = color and QtGui.QColor(color)
self.fillColor = fillColor and QtGui.QColor(fillColor)
self.width = width
self.name = name
self.setAntialiased(aa)
def _setupPainter(self, p):
if self.color:
p.setPen(QtGui.QPen(self.color, self.width))
else:
p.setPen(QtCore.Qt.NoPen)
if self.fillColor:
p.setBrush(self.fillColor)
else:
p.setBrush(QtCore.Qt.NoBrush)
class OverlayGroup(Overlay):
def __init__(self, overlays, color=QtCore.Qt.red, fillColor=QtCore.Qt.red,
name=None, parent=None):
Overlay.__init__(self, color, fillColor, parent=parent)
self.overlays = overlays
self.name = name
# Coordinate and aliasing settings from individual overlays
# are used so following setting won't get effective
self.setCoordinateSystem(VigraQt.Overlay.UnscaledPixel)
if parent:
parent.addOverlay(self)
self.setParent(parent)
def setParent(self, parent):
Overlay.setParent(self, parent)
for o in self.overlays:
o.setParent(parent)
def draw(self, p, r):
for o in self.overlays:
p.save()
if self.parent():
if o.coordinateSystem() & VigraQt.Overlay.Scaled:
p.scale(self.parent().zoomFactor(), self.parent().zoomFactor())
if o.coordinateSystem() & VigraQt.Overlay.Pixel:
p.translate(0.5, 0.5)
p.setRenderHint(QtGui.QPainter.Antialiasing, o.isAntialiased())
o.draw(p, r)
p.restore()
class PointOverlay(Overlay):
def __init__(self, points, color=QtCore.Qt.red, fillColor=QtCore.Qt.red,
radius=0.5, colors=None, name=None, aa=False, parent=None):
Overlay.__init__(self, color, fillColor, aa=aa, parent=parent)
self.originalPoints = points
self.color = color and QtGui.QColor(color)
self.colors = colors
self.name = name
self.radius = radius
if parent:
parent.addOverlay(self)
def draw(self, p, r):
p.save()
visibleRect = QtCore.QRectF(
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.topLeft()),
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.bottomRight()))
w = (2.0 * self.radius + 1.0) / self.parent().zoomFactor()
if self.colors:
for i in range(len(self.originalPoints)):
point = QtCore.QPointF(*self.originalPoints[i])
if visibleRect.contains(point):
if len(self.colors) > i:
p.setBrush(QtGui.QBrush(self.colors[i]))
p.setPen(self.colors[i])
else:
self._setupPainter(p)
p.drawEllipse(point, w, w)
else:
self._setupPainter(p)
for i in range(len(self.originalPoints)):
point = QtCore.QPointF(*self.originalPoints[i])
if visibleRect.contains(point):
p.drawEllipse(point, w, w)
p.restore()
class EdgeOverlay(Overlay):
def __init__(self, edges, color=QtCore.Qt.red, colors=None, fillColor=None,
width=0, name=None, aa=False, parent=None):
Overlay.__init__(self, color, fillColor, width, name, aa, parent)
# input should be list of Polygons, but also accept single Polygon
self.width = width
self.colors = colors
if not hasattr(edges[0][0], "__getitem__"):
self.originalEdges = [edges]
else:
self.originalEdges = edges
if parent:
parent.addOverlay(self)
def draw(self, p, r):
p.save()
visibleRect = QtCore.QRectF(
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.topLeft()),
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.bottomRight()))
self._setupPainter(p)
if self.colors:
for j, polygon in enumerate(self.originalEdges):
qpolf = QtGui.QPolygonF(len(polygon))
for i, (x, y) in enumerate(polygon):
qpolf[i] = QtCore.QPointF(x, y)
if qpolf.boundingRect().intersects(visibleRect):
if len(self.colors) > j:
p.setBrush(QtGui.QBrush(self.colors[j]))
p.setPen(self.colors[j])
else:
self._setupPainter(p)
p.drawPolygon(qpolf) if qpolf.isClosed() else p.drawPolyline(qpolf)
else:
for polygon in self.originalEdges:
qpolf = QtGui.QPolygonF(len(polygon))
for i, (x, y) in enumerate(polygon):
qpolf[i] = QtCore.QPointF(x, y)
if qpolf.boundingRect().intersects(visibleRect):
p.drawPolygon(qpolf) if qpolf.isClosed() else p.drawPolyline(qpolf)
p.restore()
class TextOverlay(Overlay):
def __init__(self, text, pos, color=QtCore.Qt.red, pointsize=None,
zoomText=False, name=None, aa=False, parent=None):
Overlay.__init__(self, color, color, aa=aa, parent=parent)
self.text = text
self.pos = pos
self.pointsize = pointsize
self.name = name
if zoomText:
self.setCoordinateSystem(VigraQt.Overlay.ScaledPixel)
else:
self.setCoordinateSystem(VigraQt.Overlay.UnscaledPixel)
if parent:
parent.addOverlay(self)
def draw(self, p, r):
p.save()
visibleRect = QtCore.QRectF(
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.topLeft()),
VigraQt.OverlayViewer.imageCoordinateF(self.parent(), r.bottomRight()))
if self.coordinateSystem() & VigraQt.Overlay.Scaled:
position = QtCore.QPointF(*self.pos)
else:
position = QtCore.QPointF(*[(x+0.5) * self.parent().zoomFactor() for x in self.pos])
self._setupPainter(p)
if self.pointsize:
defaultFont = p.font()
defaultFont.setPointSizeF(self.pointsize)
p.setFont(defaultFont)
twidth = p.fontMetrics().width(self.text)
theight = p.fontMetrics().height()
textRect = QtCore.QRectF(position.x() - twidth / 2.0,
position.y() - theight / 2.0, twidth, theight)
if self.coordinateSystem() & VigraQt.Overlay.Unscaled:
twidth /= self.parent().zoomFactor()
theight /= self.parent().zoomFactor()
displayRect = QtCore.QRectF(self.pos[0] - twidth / 2.0,
self.pos[1] - theight / 2.0, twidth, theight)
else:
displayRect = textRect
if displayRect.intersects(visibleRect):
p.drawText(textRect, QtCore.Qt.AlignCenter, self.text)
p.restore()
class MapOverlay(Overlay):
def __init__(self, geomap, edgeColor=QtCore.Qt.blue,
nodeColor=QtCore.Qt.red, name=None, aa=False, parent=None):
Overlay.__init__(self, aa=aa, parent=parent)
self.edges, self.nodes = [], []
for edge in geomap.edgeIter():
self.edges.append(edge)
for node in geomap.nodeIter():
self.nodes.append(node.position())
self.eo = EdgeOverlay(self.edges, edgeColor, parent=None)
self.po = PointOverlay(self.nodes, nodeColor, radius=0.3, parent=None)
self.eo.setParent(parent)
self.po.setParent(parent)
if parent:
parent.addOverlay(self)
def setParent(self, parent):
Overlay.setParent(self, parent)
self.eo.setParent(parent)
self.po.setParent(parent)
def draw(self, p, r):
self.eo.draw(p, r)
self.po.draw(p, r)
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