class AnimationSpinner(QLabel):
def __init__(self, parent=None):
QLabel.__init__(self, parent)
brightness = parent.palette().color(QPalette.Window).valueF()
self._bw = brightness < 0.5 and 1 or 0
self._steps = 12
self._setup()
self._isRunning = False
self.animationTimer = None
def _setup(self):
steps = self._steps
anglestep = 360. / steps
fillstep = 0.6 / (steps - 1)
self._fillsteps = [0.71 - i * fillstep for i in range(steps)]
self._coords = [coordinates(8, 8, 6, anglestep*i) for i in range(steps)]
self._path = QPainterPath()
self._path.addRoundedRect(0, 0, 4, 2, 1, 1)
def start(self):
self.animationTimer = QTimer(self)
self.connect(self.animationTimer, SIGNAL("timeout()"), self.run)
self.animationTimer.start(35)
self._isRunning = True
def stop(self):
if self.animationTimer is not None:
self.animationTimer.stop()
self.animationTimer = None
self._isRunning = False
self.repaint()
def run(self):
self.repaint()
self._fillsteps = self._fillsteps[1:] + [self._fillsteps[0]]
def paintEvent(self, event):
if self._isRunning:
anglestep = 360. / self._steps
fillsteps = self._fillsteps
factor = min(self.width(), self.height()) / 16.
bw = self._bw
p = QPainter(self)
p.setRenderHint(QPainter.Antialiasing, True)
p.scale(factor, factor)
p.setPen(Qt.NoPen)
for i in range(self._steps):
x1, y1 = self._coords[i]
c = fillsteps[self._steps - 1 - i]
a = anglestep * i
p.setBrush(QBrush(QColor.fromRgbF(bw, bw, bw, c)))
p.save()
p.translate(x1 - 2, y1 - 1)
p.translate(2, 1)
p.rotate(a)
p.translate(-2, -1)
p.drawPath(self._path)
p.restore()
class Hints(QGraphicsItem):
def __init__(self, x_offset, y_offset):
super(Hints, self).__init__()
self.x_offset = x_offset
self.y_offset = y_offset
self.path = None
self.setup_display()
def setup_display(self, step=0):
steps = ["Press Alt: matching commits mode",
"Keep pressing Alt and hover over a commit",
"That way you can see all the commits that have the same name"]
self.path = QPainterPath()
self.font = QFont()
self.font.setFamily("Helvetica")
self.font.setPointSize(FONT_SIZE)
self.path.addText(
self.x_offset,
self.y_offset,
self.font, QString(steps[step]))
def boundingRect(self):
return self.path.boundingRect()
def shape(self):
return self.path
def paint(self, painter, option, widget=None):
painter.setPen(Qt.NoPen)
painter.setBrush(QBrush(BLACK))
painter.drawPath(self.path)
def shape(self):
if self._rect is not None:
p = QPainterPath()
p.addRect(self.boundingRect())
return p
else:
return super().shape()
def mouseMoveEvent(self, event):
"""
Normally our base class (QGraphicsScene) distributes mouse events to the
various QGraphicsItems in the scene. But when the mouse is being dragged,
it only sends events to the one object that was under the mouse when the
button was first pressed.
Here, we forward all events to QGraphicsItems on the drag path, even if
they're just brushed by the mouse incidentally.
"""
super(ImageScene2D, self).mouseMoveEvent(event)
if not event.isAccepted() and event.buttons() != Qt.NoButton:
if self.last_drag_pos is None:
self.last_drag_pos = event.scenePos()
# As a special feature, find the item and send it this event.
path = QPainterPath(self.last_drag_pos)
path.lineTo(event.scenePos())
items = self.items(path)
for item in items:
item.mouseMoveEvent(event)
self.last_drag_pos = event.scenePos()
else:
self.last_drag_pos = None
def draw_into(self, scene, incremental=False):
for subbranch in self.branches:
subbranch.draw_into(scene, incremental)
start = self.already_drawn if incremental else None
points = [QPointF(np.real(x), -np.imag(x)) for x in self.history[start:]]
gens = float(self.params["painter_generations"])
scale_factor = (self.params["scale"] - 1) * 3 + 1
pen_width = max(0, gens-self.generation) / gens * self.params["painter_thickness"] * scale_factor
if self.generation == 0 and len(self.history) < 30:
intensity = 126/30.0 * len(self.history)
else:
intensity = 17 + 99 * max(0, gens-self.generation) / gens
color = self.params["color"].darker(85 + (127 - intensity) * 4)
outline = color.darker(500)
pen = QPen(color)
pen.setWidthF(pen_width)
darkPen = QPen(outline)
darkPen.setWidthF(pen_width)
depth = self.params["depth"]
path = QPainterPath()
path.moveTo(points[0])
for index in range(1, len(points) - 1):
path.lineTo(points[index])
scene.addPath(path, pen)
if incremental:
self.already_drawn = max(0, len(self.history) - 1)
def shape(self):
if self._rect is not None:
p = QPainterPath()
p.addRect(self.boundingRect())
return p
else:
return super().shape()
def __updateCurve(self):
self.prepareGeometryChange()
if self.sourceAnchor and self.sinkAnchor:
source_pos = self.sourceAnchor.anchorScenePos()
sink_pos = self.sinkAnchor.anchorScenePos()
source_pos = self.curveItem.mapFromScene(source_pos)
sink_pos = self.curveItem.mapFromScene(sink_pos)
# Adaptive offset for the curve control points to avoid a
# cusp when the two points have the same y coordinate
# and are close together
delta = source_pos - sink_pos
dist = math.sqrt(delta.x() ** 2 + delta.y() ** 2)
cp_offset = min(dist / 2.0, 60.0)
# TODO: make the curve tangent orthogonal to the anchors path.
path = QPainterPath()
path.moveTo(source_pos)
path.cubicTo(source_pos + QPointF(cp_offset, 0),
sink_pos - QPointF(cp_offset, 0),
sink_pos)
self.curveItem.setPath(path)
self.sourceIndicator.setPos(source_pos)
self.sinkIndicator.setPos(sink_pos)
self.__updateText()
else:
self.setHoverState(False)
self.curveItem.setPath(QPainterPath())
def toQPainterPath(self):
"""Return a QPainterPath containing all segments of this path.
"""
if not self.isValid():
raise Path2dException('invalid path')
p = QPainterPath()
sx, sy = self._elements[0]
if len(self._elements[1]) == 2:
# Only add a start point if the QPainterPath will start with a
# line, not an arc.
p.moveTo(sx, sy)
for e in self._elements[1:]:
if len(e) == 2:
p.lineTo(*e)
sx, sy = e
else:
(ex, ey), (cx, cy), arcDir = e
r = hypot(ex - cx, ey - cy)
d = r * 2
sa = degrees(atan2(sy - cy, sx - cx)) % 360.0
ea = degrees(atan2(ey - cy, ex - cx)) % 360.0
# NOTE: machtool uses a right-handed cartesian coordinate
# system with the Y+ up. Because of this, the QRectF
# used to define the arc has a negative height. This
# makes a positive arc angle sweep cclw as it should.
rect = QRectF(cx - r, cy + r, d, -d)
if arcDir == 'cclw':
span = (ea + 360.0 if ea < sa else ea) - sa
else:
span = -((sa + 360.0 if sa < ea else sa) - ea)
p.arcMoveTo(rect, sa)
p.arcTo(rect, sa, span)
sx, sy = ex, ey
return p
def __init__(self, parent, *args):
GraphicsPathObject.__init__(self, parent, *args)
self.setAcceptHoverEvents(True)
self.setPen(QPen(Qt.NoPen))
self.normalBrush = QBrush(QColor("#CDD5D9"))
self.connectedBrush = QBrush(QColor("#9CACB4"))
self.setBrush(self.normalBrush)
self.shadow = QGraphicsDropShadowEffect(blurRadius=10,
color=QColor(SHADOW_COLOR),
offset=QPointF(0, 0))
self.setGraphicsEffect(self.shadow)
self.shadow.setEnabled(False)
# Does this item have any anchored links.
self.anchored = False
if isinstance(parent, NodeItem):
self.__parentNodeItem = parent
else:
self.__parentNodeItem = None
self.__anchorPath = QPainterPath()
self.__points = []
self.__pointPositions = []
self.__fullStroke = None
self.__dottedStroke = None
self.__shape = None
def __init_corner(self):
path = QPainterPath()
path.moveTo(-Block.padding, -15 - Block.padding)
path.lineTo(-15 - Block.padding, -Block.padding)
path.lineTo(-Block.padding, -Block.padding)
path.closeSubpath()
self.__corner_path = path
def __drawLine(self, painter, graph, width, height): path = QPainterPath() try: day = graph[0][0].day value = graph[0][0].data(self.__index) (x, y) = self.__getCoordinates(width, height, day, value) path.moveTo(x, y) except IndexError: pass for pos in range(1, len(graph[0])): point = graph[0][pos] day = point.day value = point.data(self.__index) (x, y) = self.__getCoordinates(width, height, day, value) path.lineTo(x, y) pen = QPen() pen.setColor(QColor(graph[2])) pen.setWidth(3) pen.setCapStyle(Qt.RoundCap); pen.setJoinStyle(Qt.RoundJoin); painter.setPen(pen) painter.setBrush(Qt.NoBrush) painter.drawPath(path)
def generateArrows(self):
x, y = self.size().width() - 4, self.size().height() - 4
pen = QtGui.QPen(QtGui.QColor(QtCore.Qt.black))
brush = QtGui.QBrush(pen.color().darker(150))
points_list = [[
QtCore.QPoint(x / 2, 0),
QtCore.QPoint(x / 2 + 5, 5),
QtCore.QPoint(x / 2 - 5, 5)
],
[
QtCore.QPoint(x / 2, y),
QtCore.QPoint(x / 2 + 5, y - 5),
QtCore.QPoint(x / 2 - 5, y - 5)
],
[
QtCore.QPoint(0, y / 2),
QtCore.QPoint(5, y / 2 + 5),
QtCore.QPoint(5, y / 2 - 5)
],
[
QtCore.QPoint(x, y / 2),
QtCore.QPoint(x - 5, y / 2 + 5),
QtCore.QPoint(x - 5, y / 2 - 5)
]]
for points in points_list:
poly = QtGui.QPolygonF(points)
path = QPainterPath()
path.addPolygon(poly)
self.rArrow = self.scene().addPolygon(poly, pen)
self.scene().addPath(path, pen, brush)
def __init__(self, parent, pos, angle):
Sector.__init__(self, parent, pos, angle)
self.setZValue(1)
path = QPainterPath()
path.lineTo(_pitDistance, 0)
self.setPath(path)
self.setPen(QPen(_pitColor, _pitWidth))
def tick_DC(self, u, i):
self.datau.pop(0)
self.datai.pop(0)
self.datau.append(u)
self.datai.append(i)
self.scene1 = QGraphicsScene()
self.scene2 = QGraphicsScene()
self.setup_scene(self.scene1)
self.setup_scene(self.scene2)
self.scene1.addSimpleText('[U/V]').moveBy(-39, 220-10)
self.scene2.addSimpleText('[I/mA]').moveBy(-39, 220-10)
self.scene1.addSimpleText('+4.0').moveBy(-40, 0-10)
self.scene1.addSimpleText('+2.0').moveBy(-40, 50-10)
self.scene1.addSimpleText(' 0.0').moveBy(-40, 100-10)
self.scene1.addSimpleText('-2.0').moveBy(-40, 150-10)
self.scene1.addSimpleText('-4.0').moveBy(-40, 200-10)
self.scene2.addSimpleText('+0.4').moveBy(-40, 0-10)
self.scene2.addSimpleText('+0.2').moveBy(-40, 50-10)
self.scene2.addSimpleText(' 0.0').moveBy(-40, 100-10)
self.scene2.addSimpleText('-0.2').moveBy(-40, 150-10)
self.scene2.addSimpleText('-0.4').moveBy(-40, 200-10)
path = QPainterPath()
path.moveTo(0,100-self.datau[0]*25)
for i in xrange(1,200):
path.lineTo(3*(i+1), 100-self.datau[i]*25)
self.scene1.addPath(path, QPen(QColor(0,0,255), 3))
path = QPainterPath()
path.moveTo(0,100-self.datai[0]*25)
for i in xrange(1,200):
path.lineTo(3*(i+1), 100-self.datai[i]*25)
self.scene2.addPath(path, QPen(QColor(0,0,255), 3))
self.ui.graph1.setScene(self.scene1)
self.ui.graph2.setScene(self.scene2)
def __call__(o, gridfunc, piece_count, image_width, image_height):
p = QPainterPath(QPointF(0.0, 0.0))
p.lineTo(QPointF(image_width, 0.0))
p.lineTo(QPointF(image_width, image_height))
p.lineTo(QPointF(0.0, image_height))
p.closeSubpath()
o._boundary_path = p
gridfunc(o, piece_count, image_width, image_height)
def path_for(points):
path = QPainterPath(points[0])
for point in points[1:]:
path.lineTo(point)
path.lineTo(points[-1].x(), 0)
path.lineTo(points[0].x(), 0)
path.lineTo(points[0])
return path
def compute_path(self):
p1 = self.p1 if self.p1.x() < self.p2.x() else self.p2
p2 = self.p2 if self.p1.x() < self.p2.x() else self.p1
path = QPainterPath()
path.moveTo(p1)
dx = p2.x() - p1.x()
path.cubicTo(QPoint(p1.x() + dx / 3, p1.y()), QPoint(p2.x() - dx / 3, p2.y()), p2)
self.__path = path
def test_shapeFromPath(self):
path = QPainterPath()
path.addRect(10, 10, 20, 20)
pen = QPen(QColor("#FFF"), 2.0)
path = shapeFromPath(path, pen)
self.assertGreaterEqual(area(path.controlPointRect()), (20 + 2.0)**2)
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsObject.ItemSendsGeometryChanges)
self.__path = QPainterPath()
self.__brush = QBrush(Qt.NoBrush)
self.__pen = QPen()
self.__boundingRect = None
def shape(self):
"""
Returns the shape used for selection
"""
s = QPainterPath()
s.addPath(self.hexagon_path)
if self.editable:
s.addPath(self.stroke)
return s
def test_shapeFromPath(self):
path = QPainterPath()
path.addRect(10, 10, 20, 20)
pen = QPen(QColor("#FFF"), 2.0)
path = shapeFromPath(path, pen)
self.assertGreaterEqual(area(path.controlPointRect()),
(20 + 2.0) ** 2)
def redraw_path(self):
self.path = QPainterPath()
for segment in self.segment(self.data()):
if self.fitted:
self.draw_cubic_path(segment)
else:
self.draw_normal_path(segment)
self._item.setPath(self.graph_transform().map(self.path))
self._item.setPen(self.pen())
def _setup(self):
steps = self._steps
anglestep = 360. / steps
fillstep = 0.6 / (steps - 1)
self._fillsteps = [0.71 - i * fillstep for i in range(steps)]
self._coords = [
coordinates(8, 8, 6, anglestep * i) for i in range(steps)
]
self._path = QPainterPath()
self._path.addRoundedRect(0, 0, 4, 2, 1, 1)
def __init_corner(self):
path = QPainterPath()
dpi = Info.dpi
path.moveTo(-OIBlock.padding * 1.2 * dpi,
(-.15 - OIBlock.padding * 1.2) * dpi)
path.lineTo((-.15 - OIBlock.padding * 1.2) * dpi,
-OIBlock.padding * 1.2 * dpi)
path.lineTo(-OIBlock.padding * 1.2 * dpi, -OIBlock.padding * 1.2 * dpi)
path.closeSubpath()
self.__corner_path = path
def setShapeRect(self, rect):
"""
Set the item's shape `rect`. The item should be confined within
this rect.
"""
path = QPainterPath()
path.addEllipse(rect)
self.setPath(path)
self.__shapeRect = rect
def setShapeRect(self, rect):
"""
Set the item's shape `rect`. The item should be confined within
this rect.
"""
path = QPainterPath()
path.addEllipse(rect)
self.setPath(path)
self.__shapeRect = rect
def _paintPolygon(self, painter, polygon):
path = QPainterPath()
for line in polygon:
ring = QPolygonF()
for point in line:
cur = self.toCanvasCoordinates(point) - self.pos()
ring.append(cur)
ring.append(ring[0])
path.addPolygon(ring)
painter.drawPath(path)
def shape(self):
params = parameters.instance
path = QPainterPath()
scale = self.scale
half_size = params.old_point_size / 2.
path.moveTo(0, -half_size * scale[1])
path.lineTo(0, half_size * scale[1])
path.moveTo(-half_size * scale[0], 0)
path.lineTo(half_size * scale[0], 0)
return path
def paint(self, painter, option, widget):
params = parameters.instance
pen = QPen(QColor(Qt.black))
scale = self.scale
ms = min(scale)
pen.setWidth(params.cell_thickness)
sel_thick = 2*params.cell_thickness
if sel_thick == 0:
sel_thick = 2*ms
col = None
if self.current:
col = QColor(params.selected_cell_color)
elif self.hover:
col = QColor(params.cell_hover_color)
else:
col = QColor(params.cell_color)
painter.setBrush(col)
if self.hover_contour:
pen1 = QPen(QColor(Qt.white))
pen1.setWidth(sel_thick)
painter.setPen(pen1)
else:
painter.setPen(pen)
if isinstance(self.polygon, QPolygonF):
painter.drawPolygon(self.polygon_shape)
elif isinstance(self.polygon, QLineF):
painter.drawLine(self.polygon)
pen.setWidth(0)
painter.setPen(pen)
painter.drawPolygon(self.hexagon)
if self.hover_side is not None:
pen = QPen(QColor(Qt.red))
pen.setWidth(sel_thick)
side = self.sides[self.hover_side]
painter.setPen(pen)
pp = QPainterPath()
pp.moveTo(side[0])
for p in side[1:]:
pp.lineTo(p)
painter.drawPath(pp)
elif self.division_line is not None:
pen = QPen(params.division_wall_color)
pen.setWidth(sel_thick)
painter.setPen(pen)
painter.drawLine(self.division_line)
elif self.dragging_line:
pen = QPen(QColor(Qt.red))
pen.setWidth(sel_thick)
painter.setPen(pen)
polygon = self.polygon
dg = self.drag_side
p1 = polygon[dg]
p2 = polygon[dg+1]
painter.drawLine(p1, self.moving_point)
painter.drawLine(self.moving_point, p2)
def rebuild(self, gridRect):
"""
Rebuilds the tracker item.
"""
scene = self.scene()
if (not scene):
return
self.setVisible(gridRect.contains(self.pos()))
self.setZValue(100)
path = QPainterPath()
path.moveTo(0, 0)
path.lineTo(0, gridRect.height())
tip = ''
tip_point = None
self._ellipses = []
items = scene.collidingItems(self)
self._basePath = QPainterPath(path)
for item in items:
item_path = item.path()
found = None
for y in range(int(gridRect.top()), int(gridRect.bottom())):
point = QPointF(self.pos().x(), y)
if (item_path.contains(point)):
found = QPointF(0, y - self.pos().y())
break
if (found):
path.addEllipse(found, 6, 6)
self._ellipses.append(found)
# update the value information
value = scene.valueAt(self.mapToScene(found))
tip_point = self.mapToScene(found)
hruler = scene.horizontalRuler()
vruler = scene.verticalRuler()
x_value = hruler.formatValue(value[0])
y_value = vruler.formatValue(value[1])
tip = '<b>x:</b> %s<br/><b>y:</b> %s' % (x_value, y_value)
self.setPath(path)
self.setVisible(True)
# show the popup widget
if (tip):
anchor = XPopupWidget.Anchor.RightCenter
widget = self.scene().chartWidget()
tip_point = widget.mapToGlobal(widget.mapFromScene(tip_point))
XPopupWidget.showToolTip(tip,
anchor=anchor,
parent=widget,
point=tip_point,
foreground=QColor('blue'),
background=QColor(148, 148, 255))
def __init__(self, radiusOut, raiusIn, angle, arcLen, parent=None):
QGraphicsPathItem.__init__(self, parent=parent)
self._radiusOut = radiusOut
self._raiusIn = raiusIn
self._angle = angle
self._arcLen = arcLen
self._pen = QPen(QColor('#000000'))
self._pen.setWidth(1)
self.setPen(self._pen)
self._hoverPen = QPen(QColor('#000000'))
self._hoverPen.setWidth(2)
brush = QBrush(QColor('#FF9966'))
self.setBrush(brush)
rectOut = QRectF(-radiusOut, -radiusOut, radiusOut*2.0, radiusOut*2.0)
rectIn = QRectF(-raiusIn, -raiusIn, raiusIn*2.0, raiusIn*2.0)
startAngle = angle - arcLen/2.0
endAngle = angle + arcLen/2.0
path = QPainterPath()
path.arcMoveTo(rectIn, startAngle)
path.arcTo(rectOut, startAngle, arcLen)
path.arcTo(rectIn, endAngle, 0)
path.arcTo(rectIn, endAngle, -arcLen)
self.setPath(path)
self._isHover = False
self._ioDragFirstPos = None
def __init__(self, parent, pos, angle, pit=False):
QGraphicsItemGroup.__init__(self, parent)
AbstractSector.__init__(self, pos, angle)
self.setZValue(3)
self.black = QGraphicsPathItem(self)
self.white = QGraphicsPathItem(self)
start = 3 * (_trackWidth / 2)
end = -start - abs(_pitDistance if pit else 0)
rowdelta = _trackWidth / 4
for item, y in [(self.black, -rowdelta),
(self.white, rowdelta)]:
item.setCacheMode(QGraphicsPathItem.DeviceCoordinateCache)
self.addToGroup(item)
path = QPainterPath()
path.moveTo(start, y)
path.lineTo(end, y)
path.moveTo(end, -y)
path.lineTo(start, -y)
item.setPath(path)
pen = QPen(Qt.black, _trackWidth / 2)
pen.setCapStyle(Qt.FlatCap)
pen.setDashPattern([1, 1])
self.black.setPen(QPen(pen))
pen.setColor(Qt.white)
self.white.setPen(pen)
def toQPainterPath(self):
"""Return a QPainterPath containing all segments of this path.
"""
if not self.isValid():
raise Path2dException('invalid path')
p = QPainterPath()
sx, sy = self._elements[0]
if len(self._elements[1]) == 2:
# Only add a start point if the QPainterPath will start with a
# line, not an arc.
p.moveTo(sx, sy)
for e in self._elements[1:]:
if len(e) == 2:
p.lineTo(*e)
sx, sy = e
else:
(ex, ey), (cx, cy), arcDir = e
r = hypot(ex-cx, ey-cy)
d = r*2
sa = degrees(atan2(sy-cy, sx-cx)) % 360.0
ea = degrees(atan2(ey-cy, ex-cx)) % 360.0
# NOTE: machtool uses a right-handed cartesian coordinate
# system with the Y+ up. Because of this, the QRectF
# used to define the arc has a negative height. This
# makes a positive arc angle sweep cclw as it should.
rect = QRectF(cx - r, cy + r, d, -d)
if arcDir == 'cclw':
span = (ea + 360.0 if ea < sa else ea) - sa
else:
span = -((sa + 360.0 if sa < ea else sa) - ea)
p.arcMoveTo(rect, sa)
p.arcTo(rect, sa, span)
sx, sy = ex, ey
return p
def _updatePath(self):
p0 = self._p0
p1 = self._p1
path = QPainterPath()
path.moveTo(p0)
dx = p1.x() - p0.x()
x0 = p0.x() + 0.7 * dx
x1 = p1.x() - 0.7 * dx
path.cubicTo(QPointF(x0, p0.y()), QPointF(x1, p1.y()), p1)
self.setPath(path)
def __init__(self, parent, pos, angle, length, color, radius, pit=False):
PhysicalSector.__init__(self, parent, pos, angle, length, color, pit)
self.angle = 180.0 * self.length() / (math.pi * radius)
startAngle = 180.0 if radius > 0 else 0
offset = _pitDistance if pit else 0
radius -= offset
rect = QRectF(offset + (2 * radius if radius < 0 else 0), -abs(radius),
2 * abs(radius), 2 * abs(radius))
path = QPainterPath(QPointF(offset, 0))
path.arcTo(rect, startAngle, self.angle)
self.setPath(path)
def __init_corner(self):
path = QPainterPath()
dpi = Info.dpi
path.moveTo(-OIBlock.padding * 1.2 * dpi, (-.15 - OIBlock.padding * 1.2) * dpi)
path.lineTo((-.15 - OIBlock.padding * 1.2) * dpi, -OIBlock.padding * 1.2 * dpi)
path.lineTo(-OIBlock.padding * 1.2 * dpi, -OIBlock.padding * 1.2 * dpi)
path.closeSubpath()
self.__corner_path = path
def paint(self, painter, styleoptions, widget=None):
try:
width, realsize, label, fontsize = self._calc_size()
except ZeroDivisionError:
return
mapunits = self.canvas.mapUnits()
# painter.drawRect(self.boundingRect())
array = QPolygon()
canvasheight = self.canvas.height()
canvaswidth = self.canvas.width()
margin = 20
originy = 0
originx = 0
self.setPos(margin, canvasheight - margin)
x1, y1 = originx, originy
x2, y2 = originx, originy + self.ticksize
x3, y3 = originx + width, originy + self.ticksize
midx, midy = originx + width /2, originy + self.ticksize / 2
x4, y4 = originx + width, originy
for pen in self.pens:
painter.setPen(pen)
# Drwa the scale bar
painter.drawLine(x1, y1, x2, y2)
painter.drawLine(x2, y2, x3, y3)
painter.drawLine(x3, y3, x4, y4)
painter.drawLine(midx, midy, midx, y1)
# Draw the text
fontwidth = self.metrics.width("0")
fontheight = self.metrics.height()
fontheight /= 2
fontwidth /= 2
path = QPainterPath()
point = QPointF(x1 - fontwidth, y1 - fontheight)
path.addText(point, self.font, "0")
painter.setPen(self.whitepen)
painter.setBrush(self.blackbrush)
painter.setRenderHints(QPainter.Antialiasing)
painter.setFont(self.font)
painter.drawPath(path)
fontwidth = self.metrics.width(label)
fontheight = self.metrics.height()
fontheight /= 2
fontwidth /= 2
point = QPointF(x4 - fontwidth, y4 - fontheight)
path.addText(point, self.font, label)
painter.drawPath(path)
def mouseMoveEvent(self, ev):
super(SfGraphicsScene, self).mouseMoveEvent(ev) #clicked on empty space and moving
if self._rubberHand is not None:
self._rubberHand.setGeometry(QRect(self._rubberHandOrigin, ev.scenePos().toPoint()).normalized())
selectionArea = QPainterPath()
selectionArea.addRect(QRectF(self._rubberHand.geometry()))
self.setSelectionArea(selectionArea)
if self.isDrawMode() and ev.buttons() == Qt.LeftButton and self._newLine is not None:
line = self._newLine.line()
line.setP2(ev.scenePos())
self._newLine.setLine(line)
self._newLine.setStartPoint()
def paintEvent(self, QPaintEvent):
p = QPainter(self.viewport())
clipPath = QPainterPath()
clipPath.addEllipse(0, 0, 100, 100)
p.setRenderHint(QPainter.Antialiasing)
p.setClipPath(clipPath)
p.setClipping(False)
p.setPen(Qt.gray)
p.drawPath(clipPath)
self.update()
def test_layout(self):
file_desc, disc_desc, bayes_desc = self.widget_desc()
file_item = NodeItem()
file_item.setWidgetDescription(file_desc)
file_item.setPos(0, 150)
self.scene.add_node_item(file_item)
bayes_item = NodeItem()
bayes_item.setWidgetDescription(bayes_desc)
bayes_item.setPos(200, 0)
self.scene.add_node_item(bayes_item)
disc_item = NodeItem()
disc_item.setWidgetDescription(disc_desc)
disc_item.setPos(200, 300)
self.scene.add_node_item(disc_item)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(disc_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(bayes_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(file_item)
layout.activate()
p1, p2 = file_item.outputAnchorItem.anchorPositions()
self.assertTrue(p1 > p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.clock()
bayes_item.setPos(path.pointAtPercent(t % 1.0))
disc_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
self.singleShot(20, advance)
advance()
self.app.exec_()
def test_graphicspathobject(self):
obj = GraphicsPathObject()
path = QPainterPath()
obj.setFlag(GraphicsPathObject.ItemIsMovable)
path.addEllipse(20, 20, 50, 50)
obj.setPath(path)
self.assertEqual(obj.path(), path)
self.assertTrue(obj.path() is not path,
msg="setPath stores the path not a copy")
brect = obj.boundingRect()
self.assertTrue(area(brect) == 50**2)
with self.assertRaises(TypeError):
obj.setPath("This is not a path")
brush = QBrush(QColor("#ffbb11"))
obj.setBrush(brush)
self.assertEqual(obj.brush(), brush)
self.assertTrue(obj.brush() is not brush,
"setBrush stores the brush not a copy")
pen = QPen(QColor("#FFFFFF"), 1.4)
obj.setPen(pen)
self.assertEqual(obj.pen(), pen)
self.assertTrue(obj.pen() is not pen,
"setPen stores the pen not a copy")
brect = obj.boundingRect()
self.assertGreaterEqual(area(brect), (50 + 1.4 * 2)**2)
self.assertIsInstance(obj.shape(), QPainterPath)
positions = []
obj.positionChanged[QPointF].connect(positions.append)
pos = QPointF(10, 10)
obj.setPos(pos)
self.assertEqual(positions, [pos])
self.scene.addItem(obj)
self.view.show()
self.app.exec_()
def test_layout(self):
file_desc, disc_desc, bayes_desc = self.widget_desc()
file_item = NodeItem()
file_item.setWidgetDescription(file_desc)
file_item.setPos(0, 150)
self.scene.add_node_item(file_item)
bayes_item = NodeItem()
bayes_item.setWidgetDescription(bayes_desc)
bayes_item.setPos(200, 0)
self.scene.add_node_item(bayes_item)
disc_item = NodeItem()
disc_item.setWidgetDescription(disc_desc)
disc_item.setPos(200, 300)
self.scene.add_node_item(disc_item)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(disc_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(bayes_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(file_item)
layout.activate()
p1, p2 = file_item.outputAnchorItem.anchorPositions()
self.assertGreater(p1, p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.clock()
bayes_item.setPos(path.pointAtPercent(t % 1.0))
disc_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
self.singleShot(20, advance)
advance()
self.app.exec_()
def test_graphicspathobject(self):
obj = GraphicsPathObject()
path = QPainterPath()
obj.setFlag(GraphicsPathObject.ItemIsMovable)
path.addEllipse(20, 20, 50, 50)
obj.setPath(path)
self.assertEqual(obj.path(), path)
self.assertTrue(obj.path() is not path,
msg="setPath stores the path not a copy")
brect = obj.boundingRect()
self.assertTrue(area(brect) == 50 ** 2)
with self.assertRaises(TypeError):
obj.setPath("This is not a path")
brush = QBrush(QColor("#ffbb11"))
obj.setBrush(brush)
self.assertEqual(obj.brush(), brush)
self.assertTrue(obj.brush() is not brush,
"setBrush stores the brush not a copy")
pen = QPen(QColor("#FFFFFF"), 1.4)
obj.setPen(pen)
self.assertEqual(obj.pen(), pen)
self.assertTrue(obj.pen() is not pen,
"setPen stores the pen not a copy")
brect = obj.boundingRect()
self.assertGreaterEqual(area(brect), (50 + 1.4 * 2) ** 2)
self.assertIsInstance(obj.shape(), QPainterPath)
positions = []
obj.positionChanged[QPointF].connect(positions.append)
pos = QPointF(10, 10)
obj.setPos(pos)
self.assertEqual(positions, [pos])
self.scene.addItem(obj)
self.view.show()
self.app.exec_()
def draw_arc(x, y, radius_in, radius_out, angle_init, angle_end, painter):
path = QPainterPath()
path.moveTo(x + radius_in * cos(angle_init), y + radius_in * sin(angle_init))
path.arcTo(x - radius_out, y - radius_out, 2 * radius_out, 2 * radius_out, angle_init, angle_end - angle_init)
path.arcTo(x - radius_in, y - radius_in, 2 * radius_in, 2 * radius_in, angle_end, angle_init - angle_end)
path.closeSubpath()
painter.drawPath(path)
def setPath(self, path):
"""Set the items `path` (:class:`QPainterPath`).
"""
if not isinstance(path, QPainterPath):
raise TypeError("%r, 'QPainterPath' expected" % type(path))
if self.__path != path:
self.prepareGeometryChange()
# Need to store a copy of object so the shape can't be mutated
# without properly updating the geometry.
self.__path = QPainterPath(path)
self.__boundingRect = None
self.update()
def _updatePath(self):
p0 = self._startPos
p1 = self._endPos
if p0 is None or p1 is None:
return
path = QPainterPath()
path.moveTo(p0)
dx = p1.x() - p0.x()
x0 = p0.x() + 0.7 * dx
x1 = p1.x() - 0.7 * dx
path.cubicTo(QPointF(x0, p0.y()), QPointF(x1, p1.y()), p1)
self.setPath(path)
def shape(self):
params = parameters.instance
path = QPainterPath()
scale = self.scale
half_size = params.old_point_size/2.
path.moveTo(0, -half_size*scale[1])
path.lineTo(0, half_size*scale[1])
path.moveTo(-half_size*scale[0], 0)
path.lineTo(half_size*scale[0], 0)
return path
def drawArrow(self, paint, x1, y1, x2, y2):
m = paint.worldMatrix()
paint.translate(x1, y1)
pi = 3.1415926
if abs(x2 - x1) > 0:
alpha = math.atan(abs(y2 - y1) / abs(x2 - x1)) * 180 / pi
else:
alpha = 90
if y2 > y1:
if x2 > x1:
paint.rotate(alpha)
else:
paint.rotate(180 - alpha)
else:
if x2 > x1:
paint.rotate(-alpha)
else:
paint.rotate(alpha - 180)
endcoord = math.sqrt((x2 - x1)**2 + (y2 - y1)**2) - self.size / 2
p1 = QPointF(endcoord, 0)
paint.drawLine(0, 0, p1.x(), 0)
coord = math.sqrt(9**2 - 6**2)
p2 = QPointF(endcoord - coord, 6)
p3 = QPointF(endcoord - coord, -6)
path = QPainterPath()
path.moveTo(p1)
path.lineTo(p2)
path.lineTo(p3)
path.lineTo(p1)
paint.fillPath(path, paint.pen().color())
paint.setWorldMatrix(m)
class DataPipe(QtDeclarative.QDeclarativeItem):
def __init__(self, color):
super(DataPipe, self).__init__()
self.color = color
self.sourcePoint = QPoint(0,0,0)
self.destinationPoint = QPoint(0,0,0)
self.rect = QRectF(0, -20, 30, 40)
self.path = QPainterPath()
self.change = 1
self.angle = 0
def setSourcePoint(self,srcp):
self.sourcePoint = srcp
def setDestinationPoint(self,dstp):
self.destinationPoint = dstp
def boundingRect(self):
return self.path.boundingRect()
def shape(self):
return self.path
def paint(self, painter, option, widget=None):
painter.setPen(QPen(QColor(0,0,0)))
painter.setBrush(QBrush(self.color))
painter.pen().setWidth(4);
painter.setBrush(Qt.NoBrush);
painter.drawPath(self.path);
self.path.moveTo(sourcePoint);
self.path.lineTo(self.destinationPoint);
#self.path.cubicTo(cp1.x(),cp1.y(),cp2.x(),cp2.y(),destPoint.x(),destPoint.y());
painter.drawPath(self.path);
def advance(self, phase):
if phase == 0:
matrix = self.matrix()
matrix.reset()
self.setMatrix(matrix)
self.angle += self.change * random.random()
if self.angle > 4.5:
self.change = -1
self.angle -= 0.00001
elif self.angle < -4.5:
self.change = 1
self.angle += 0.00001
elif phase == 1:
self.rotate(self.angle)
def __init__(self, edge):
QGraphicsPathItem.__init__(self)
self.__edge = edge
startPoint = QPointF(edge.points[0][0], edge.points[0][1])
painterPath = QPainterPath(startPoint)
index = 1
while index + 3 <= len(edge.points):
painterPath.cubicTo(edge.points[index][0], edge.points[index][1],
edge.points[index + 1][0],
edge.points[index + 1][1],
edge.points[index + 2][0],
edge.points[index + 2][1])
index = index + 3
if index + 2 <= len(edge.points):
painterPath.quadTo(edge.points[index + 1][0],
edge.points[index + 1][1],
edge.points[index + 2][0],
edge.points[index + 2][1])
index = index + 2
if index + 1 <= len(edge.points):
painterPath.lineTo(edge.points[index + 1][0],
edge.points[index + 1][1])
if edge.head != edge.tail:
lastIndex = len(edge.points) - 1
self.addArrow(painterPath, edge.points[lastIndex - 1][0],
edge.points[lastIndex - 1][1],
edge.points[lastIndex][0], edge.points[lastIndex][1])
self.setPath(painterPath)
return
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
if self.__mode == PlotSelectionTool.Rect:
rect = QRectF(event.buttonDownPos(Qt.LeftButton), event.pos())
self.__path = QPainterPath()
self.__path.addRect(rect)
else:
self.__path.lineTo(event.pos())
self.selectionUpdated.emit(self.selectionShape())
self.__updategraphics()
event.accept()
return True
else:
return False
def __init__(self, edge, modObj):
QGraphicsPathItem.__init__(self)
self.__edge = edge
self.__modObj = modObj
startPoint = QPointF(edge.points[0][0], edge.points[0][1])
painterPath = QPainterPath(startPoint)
index = 1
while index + 3 <= len(edge.points):
painterPath.cubicTo(edge.points[index][0], edge.points[index][1],
edge.points[index + 1][0],
edge.points[index + 1][1],
edge.points[index + 2][0],
edge.points[index + 2][1])
index = index + 3
if index + 2 <= len(edge.points):
painterPath.quadTo(edge.points[index + 1][0],
edge.points[index + 1][1],
edge.points[index + 2][0],
edge.points[index + 2][1])
index = index + 2
if index + 1 <= len(edge.points):
painterPath.lineTo(edge.points[index + 1][0],
edge.points[index + 1][1])
self.setPath(painterPath)
return
def button_at(self, mouse_pos):
white_button = QPainterPath()
white_button.addEllipse(
QPointF(self.contentsRect().width() - 50,
self.contentsRect().height() - 50), 35, 35)
if white_button.contains(mouse_pos):
return True, "W"
black_button = QPainterPath()
black_button.addEllipse(QPointF(self.contentsRect().width() - 50, 50),
35, 35)
if black_button.contains(mouse_pos):
return True, "B"
return False, ""
def updatePosition(self, scene):
path = QPainterPath()
self.prepareGeometryChange()
count = len(self._longitudes)
if count > 0:
x, y = scene.posFromLonLat(self._longitudes, self._latitudes)
dx = x - x[0]
dy = y - y[0]
for i in range(1, count):
path.lineTo(dx[i], dy[i])
self.setPos(x[0], y[0])
self.setPath(path)
def paintEvent(self, QPaintEvent):
back = (numpy.ones((100, 200, 300)) * 0).astype(numpy.uint8)
back[0:60, 0:60, 0:60] = 255
ol = (numpy.zeros((100, 200, 300))).astype(numpy.uint8)
ol[0:99, 0:99, 0:99] = 120
ol[0:99, 120:140, 0:99] = 255
path = QPainterPath()
path.addRect(20, 20, 60, 60)
path.moveTo(0, 0)
path.cubicTo(99, 0, 50, 50, 99, 99)
path.cubicTo(0, 99, 50, 50, 0, 0)
painter = QPainter(self)
painter.fillRect(0, 0, 100, 100, Qt.Qt.red)
def Path_toQtPath(geom):
p = QPainterPath()
anchor, points = geom
if len(points) > 1:
p.moveTo(*points[0])
for (x, y) in points[1:]:
p.lineTo(x, y)
elif len(points) == 1:
r = QRectF(0, 0, 1e-0, 1e-9)
r.moveCenter(*points[0])
p.addRect(r)
elif len(points) == 0:
r = QRectF(0, 0, 1e-16, 1e-16)
r.moveCenter(QPointF(*anchor))
p.addRect(r)
return p
def __init__(self, parent=None, anchor=0, **kwargs):
GraphicsPathObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, False)
self.setAcceptedMouseButtons(Qt.LeftButton)
self.__constraint = 0
self.__constraintFunc = None
self.__anchor = 0
self.__initialPosition = None
self.setAnchor(anchor)
path = QPainterPath()
path.addEllipse(QRectF(-4, -4, 8, 8))
self.setPath(path)
self.setBrush(QBrush(Qt.lightGray, Qt.SolidPattern))
