def create_fromDB(self,pos_list=[],obj_type=""):
if obj_type =="rois":
num_rois = len(pos_list)
for i in range(num_rois):
points = pos_list[i]
rect=QGraphicsRectItem()
rect.setPen(QPen(Qt.green))
rect.setRect(points[0],points[1],points[2],points[3])
self.rectgroup.addToGroup(rect)
self.scene.addItem(self.rectgroup)
elif obj_type =="vector1":
num_vec = len(pos_list)
for i in range(num_vec):
points = pos_list[i]
vec=QGraphicsLineItem()
vec.setPen(QPen(Qt.green))
vec.setLine(points[0],points[1],points[2],points[3])
self.linegroup.addToGroup(vec)
self.scene.addItem(self.linegroup)
elif obj_type =="vector2":
num_vec = len(pos_list)
for i in range(num_vec):
points = pos_list[i]
vec=QGraphicsLineItem()
vec.setPen(QPen(Qt.green))
vec.setLine(points[0],points[1],points[2],points[3])
self.linegroup2.addToGroup(vec)
self.scene.addItem(self.linegroup2)
def mouseMoveEvent(self, event):
if event.buttons() & Qt.LeftButton:
downPos = event.buttonDownPos(Qt.LeftButton)
if not self.__tmpLine and self.__dragStartItem and \
(downPos - event.pos()).manhattanLength() > \
QApplication.instance().startDragDistance():
# Start a line drag
line = QGraphicsLineItem(self)
start = self.__dragStartItem.boundingRect().center()
start = self.mapFromItem(self.__dragStartItem, start)
line.setLine(start.x(), start.y(),
event.pos().x(),
event.pos().y())
pen = QPen(Qt.black, 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
line.show()
self.__tmpLine = line
if self.__tmpLine:
# Update the temp line
line = self.__tmpLine.line()
line.setP2(event.pos())
self.__tmpLine.setLine(line)
QGraphicsWidget.mouseMoveEvent(self, event)
class VertexFixSign(QGraphicsItem): def __init__(self, vertex): super().__init__(vertex.circle) self.topLeft = QPointF(vertex.x() - 8, vertex.y() - 8) self.topRight = QPointF(vertex.x() + 8, vertex.y() - 8) self.bottomLeft = QPointF(vertex.x() - 8, vertex.y() + 8) self.bottomRight = QPointF(vertex.x() + 8, vertex.y() + 8) self.line1 = QGraphicsLineItem(QLineF(self.topLeft, self.bottomRight), self) self.line2 = QGraphicsLineItem(QLineF(self.topRight, self.bottomLeft), self) self.vertex = vertex self.setVisible(False) def paint(self, painter, option, widget): painter.setPen(Qt.black) painter.drawLine(self.topLeft, self.bottomRight) painter.drawLine(self.topRight, self.bottomLeft) def boundingRect(self): return QRectF(self.topLeft, self.bottomRight) def move(self): self.topLeft = QPointF(self.vertex.x() - 8, self.vertex.y() - 8) self.topRight = QPointF(self.vertex.x() + 8, self.vertex.y() - 8) self.bottomLeft = QPointF(self.vertex.x() - 8, self.vertex.y() + 8) self.bottomRight = QPointF(self.vertex.x() + 8, self.vertex.y() + 8) self.line1.setLine(QLineF(self.topLeft, self.bottomRight)) self.line2.setLine(QLineF(self.topRight, self.bottomLeft))
class RSegment(QObject):
def __init__(self, x1, y1, x2, y2, color, line_width):
self._x1 = x1
self._y1 = y1
self._x2 = x2
self._y2 = y2
self._pos = QPointF(x1, y1)
super().__init__()
self.line = QGraphicsLineItem()
self.line.setLine(x1, y1, x2, y2)
pen = QPen()
pen.setWidthF(line_width)
pen.setColor(color)
self.line.setPen(pen)
def x(self):
return self._pos.x()
def y(self):
return self._pos.y()
@pyqtProperty(QPointF)
def pos(self):
return self._pos
@pos.setter
def pos(self, value):
delta_x = value.x() - self._pos.x()
delta_y = value.y() - self._pos.y()
self._x1 = self._x1 + delta_x
self._y1 = self._y1 + delta_y
self._x2 = self._x2 + delta_x
self._y2 = self._y2 + delta_y
self.line.setLine(self._x1, self._y1, self._x2, self._y2)
self._pos = value
class WayPoint:
def __init__(self, **kwargs):
super().__init__()
self.location = MapPoint()
self.__dict__.update(kwargs)
self.pixmap = QGraphicsPixmapItem(
QPixmap('HOME_DIR + /nparse/data/maps/waypoint.png'))
self.pixmap.setOffset(-10, -20)
self.line = QGraphicsLineItem(0.0, 0.0, self.location.x,
self.location.y)
self.line.setPen(QPen(Qt.green, 1, Qt.DashLine))
self.line.setVisible(False)
self.pixmap.setZValue(5)
self.line.setZValue(4)
self.pixmap.setPos(self.location.x, self.location.y)
def update_(self, scale, location=None):
self.pixmap.setScale(scale)
if location:
line = self.line.line()
line.setP1(QPointF(location.x, location.y))
self.line.setLine(line)
pen = self.line.pen()
pen.setWidth(1 / scale)
self.line.setPen(pen)
self.line.setVisible(True)
def __drawPoint(self, x, y, index):
#横线
line1 = QGraphicsLineItem()
line1.setPen(self.pen)
line1.setLine(x - self.lineRadius, y, x + self.lineRadius, y)
#竖线
line2 = QGraphicsLineItem()
line2.setPen(self.pen)
line2.setLine(x, y - self.lineRadius, x, y + self.lineRadius)
#文字说明
text = QGraphicsTextItem()
text.setDefaultTextColor(Qt.blue)
text.setFont(self.font)
text.setPlainText(self.pointsName[index])
text.setPos(x, y)
#放到组中
pointGroup = QGraphicsItemGroup()
pointGroup.addToGroup(line1)
pointGroup.addToGroup(line2)
pointGroup.addToGroup(text)
#显示
if self.pointsItem[index] is not None:
self.scene.removeItem(self.pointsItem[index])
#保存到字典
self.pointsItem[index] = pointGroup
#显示该点
self.scene.addItem(self.pointsItem[index])
def updateGraphicsLineItem(line: QGraphicsLineItem, lineF: QLineF = None, pen: QPen = None):
"""
更新线 QGraphicsLineItem属性
:param line: QGraphicsLineItem
:param lineF: 线的坐标大小
:param pen: 画笔
"""
if lineF:
line.setLine(lineF)
if pen:
line.setPen(pen)
class CrosshairGraphicsItem(QObject):
def __init__(self, parent=None):
super().__init__(parent)
self.horizontal_line = QGraphicsLineItem()
self.vertical_line = QGraphicsLineItem()
self.horizontal_line.setLine(0, 1080 / 2, 1920, 1080 / 2)
self.vertical_line.setLine(1920 / 2, 0, 1920 / 2, 1080)
self.pen = QPen(Qt.white)
self.horizontal_line.setPen(self.pen)
self.vertical_line.setPen(self.pen)
class ParticipantItem(QGraphicsItem):
def __init__(self, model_item: Participant, parent=None):
super().__init__(parent)
self.model_item = model_item
self.text = QGraphicsTextItem(self)
self.line = QGraphicsLineItem(self)
self.line.setPen(
QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin))
self.refresh()
def update_position(self, x_pos=-1, y_pos=-1):
if x_pos == -1:
x_pos = self.x_pos()
if y_pos == -1:
y_pos = self.line.line().y2()
self.text.setPos(x_pos - (self.text.boundingRect().width() / 2), 0)
self.line.setLine(x_pos, 30, x_pos, y_pos)
def x_pos(self):
return self.line.line().x1()
def width(self):
return self.boundingRect().width()
def refresh(self):
self.text.setPlainText(
"?" if not self.model_item else self.model_item.shortname)
if hasattr(self.model_item, "simulate") and self.model_item.simulate:
font = QFont()
font.setBold(True)
self.text.setFont(font)
self.text.setDefaultTextColor(Qt.darkGreen)
self.line.setPen(
QPen(Qt.darkGreen, 2, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
else:
self.text.setFont(QFont())
self.text.setDefaultTextColor(constants.LINECOLOR)
self.line.setPen(
QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin))
def boundingRect(self):
return self.childrenBoundingRect()
def paint(self, painter, option, widget):
pass
def generateData(self, canvas, lines, params):
scene = QGraphicsScene()
scene.setSceneRect(canvas)
group = scene.createItemGroup([])
for line in lines:
clone = QGraphicsLineItem(line)
clone.setLine(line.line())
clone.setPen(line.pen())
scene.addItem(clone)
group.addToGroup(clone)
pixmaps = []
for i in xrange(params.count):
pixmaps.append(self.generateRandom(scene, group, canvas, params))
return pixmaps
def __init__(self, parent, color):
super().__init__(None)
self.color = QColor(color)
self.pen = QPen()
self.pen.setColor(self.color)
self.lines = []
self.offset_x = 10
for x in range(self.offset_x, 500 + self.offset_x):
line = QGraphicsLineItem(self)
line.setLine(x, 20 + 200, x + 1, 20 + 200)
line.setPen(self.pen)
self.lines.append(line)
class RSegment(QObject):
def __init__(self, x1, y1, l, a, color, line_width):
self._point_radius = 3
self._angle = a
self._length = l
self._x1 = x1
self._y1 = y1
self._x2 = x1 + self._length * math.cos(self._angle)
self._y2 = y1 + self._length * math.sin(self._angle)
self._pos = QVector3D(x1, y1, self._angle)
super().__init__()
self.line = QGraphicsLineItem()
self.rect = QRectF(x1 - self._point_radius, y1 - self._point_radius,
2 * self._point_radius, 2 * self._point_radius)
self.point = QGraphicsEllipseItem()
self.point.setRect(self.rect)
self.line.setLine(self._x1, self._y1, self._x2, self._y2)
pen = QPen()
pen.setWidthF(line_width)
pen.setColor(color)
self.line.setPen(pen)
self.point.setPen(pen)
def x(self):
return self._x1
def y(self):
return self._y1
def angle(self):
return self._angle
@pyqtProperty(QVector3D)
def pos(self):
return self._pos
@pos.setter
def pos(self, value):
self._pos = value
self._x1 = self._pos.x()
self._y1 = self._pos.y()
self._angle = value.z()
self._x2 = self._x1 + self._length * math.cos(self._angle)
self._y2 = self._y1 + self._length * math.sin(self._angle)
self.line.setLine(self._x1, self._y1, self._x2, self._y2)
self.rect = QRectF(self._x1 - self._point_radius,
self._y1 - self._point_radius,
2 * self._point_radius, 2 * self._point_radius)
self.point.setRect(self.rect)
def connect_relation(self, x, y, type):
ver_line = QGraphicsLineItem(self.en_shape)
horz_line = QGraphicsLineItem(self.en_shape)
ver_line.setLine(
QLineF(self.rel_orgn.x(), self.rel_orgn.y(), self.rel_orgn.x(),
y - self.en_shape.y()))
horz_line.setLine(
QLineF(ver_line.line().x2(),
ver_line.line().y2(), x - self.en_shape.x(),
y - self.en_shape.y()))
self.rel_orgn.setX(self.rel_orgn.x() + self.orgn_step)
if (type == 'p'):
ver_line.setPen(QPen(Qt.black, 3, Qt.DashLine))
horz_line.setPen(QPen(Qt.black, 3, Qt.DashLine))
class ParticipantItem(QGraphicsItem):
def __init__(self, model_item: Participant, parent=None):
super().__init__(parent)
self.model_item = model_item
self.text = QGraphicsTextItem(self)
self.line = QGraphicsLineItem(self)
self.line.setPen(QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin))
self.refresh()
def update_position(self, x_pos=-1, y_pos=-1):
if x_pos == -1:
x_pos = self.x_pos()
if y_pos == -1:
y_pos = self.line.line().y2()
self.text.setPos(x_pos - (self.text.boundingRect().width() / 2), 0)
self.line.setLine(x_pos, 30, x_pos, y_pos)
def x_pos(self):
return self.line.line().x1()
def width(self):
return self.boundingRect().width()
def refresh(self):
self.text.setPlainText("?" if not self.model_item else self.model_item.shortname)
if hasattr(self.model_item, "simulate") and self.model_item.simulate:
font = QFont()
font.setBold(True)
self.text.setFont(font)
self.text.setDefaultTextColor(Qt.darkGreen)
self.line.setPen(QPen(Qt.darkGreen, 2, Qt.SolidLine, Qt.RoundCap, Qt.RoundJoin))
else:
self.text.setFont(QFont())
self.text.setDefaultTextColor(constants.LINECOLOR)
self.line.setPen(QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin))
def boundingRect(self):
return self.childrenBoundingRect()
def paint(self, painter, option, widget):
pass
class CTChartView(QChartView):
def __init__(self, parent):
super().__init__(parent)
self.setRenderHint(QPainter.Antialiasing)
self.chart = self.chart()
self.chart.legend().setVisible(False)
self._chart_loaded = False
self._chart_horizontal_line = QGraphicsLineItem(0, 0, 0, 0)
pen = self._chart_horizontal_line.pen()
pen.setStyle(Qt.DashLine)
self._chart_horizontal_line.setPen(pen)
self.scene().addItem(self._chart_horizontal_line)
self._chart_vertical_line = QGraphicsLineItem(0, 0, 0, 0)
self._chart_vertical_line.setPen(pen)
self.scene().addItem(self._chart_vertical_line)
self._chart_tooltip = QGraphicsTextItem("")
self._chart_tooltip.setPos(100, 20)
self.scene().addItem(self._chart_tooltip)
self._chart_crosshair = QGraphicsTextItem("")
self._chart_crosshair.setPos(600, 20)
self.scene().addItem(self._chart_crosshair)
margins = self.chart.margins()
margins.setTop(margins.top() + 80)
self.chart.setMargins(margins)
def mouseMoveEvent(self, event):
self._chart_horizontal_line.setLine(0,
event.pos().y(), self.width(),
event.pos().y())
self._chart_vertical_line.setLine(event.pos().x(), 0,
event.pos().x(), self.height())
crosshair_coordinates = self.chart.mapToValue(event.pos(),
self.chart.series()[0])
self._chart_crosshair.setPlainText(
" time:\t{0}\n level:\t{1:.8f}".format(
datetime.fromtimestamp(
int(crosshair_coordinates.x() /
1000)).strftime('%Y-%m-%d %H:%M:%S'),
crosshair_coordinates.y()))
return QChartView.mouseMoveEvent(self, event)
def mouseMoveEvent(self, e):
self.oldPoint = self.newPoint
self.newPoint = e.pos()
if self.firstMove:
#zamaz kropke
self.del_point(self.oldPoint.x(), self.oldPoint.y())
self.firstMove = False
#print(self.oldPoint.x(), self.oldPoint.y(), self.newPoint.x(), self.newPoint.y())
line = QGraphicsLineItem()
line.setLine(
QLineF(self.oldPoint.x(), self.oldPoint.y(), self.newPoint.x(),
self.newPoint.y()))
line.setPen(
QPen(self.colors[self.color], self.size, Qt.SolidLine, Qt.RoundCap,
Qt.RoundJoin))
self.scene.addItem(line)
def approve_obj(self):
self.scene.removeItem(self.rect)
self.scene.removeItem(self.line)
viewBBox = self.zoomStack[-1] if len(
self.zoomStack) else self.sceneRect()
selectionBBox = self.scene.selectionArea().boundingRect().intersected(
viewBBox)
rect = QGraphicsRectItem()
rect.setRect(selectionBBox)
rect.setPen(QPen(Qt.green))
self.rectgroup.addToGroup(rect)
self.scene.addItem(self.rectgroup)
line = QGraphicsLineItem()
line.setLine(QLineF(self.start, self.current))
line.setPen(QPen(Qt.green))
self.linegroup.addToGroup(line)
self.scene.addItem(self.linegroup)
return (selectionBBox, self.start, self.current)
def __init__(self, position, angle, arrow_size, value, unit):
super(StressRepresentation, self).__init__()
arrow_line = QLineF()
arrow_line.setP1(position)
arrow_line.setLength(arrow_size)
arrow_line.setAngle(angle)
arrow = QGraphicsLineItem()
arrow.setLine(arrow_line)
self.addToGroup(arrow)
arrow_head1_line = QLineF()
arrow_head1_line.setP1(arrow_line.p1())
arrow_head1_line.setLength(arrow_size / 4)
arrow_head1_line.setAngle(arrow_line.angle() + 45)
arrow_head1 = QGraphicsLineItem()
arrow_head1.setLine(arrow_head1_line)
self.addToGroup(arrow_head1)
arrow_head2_line = QLineF()
arrow_head2_line.setP1(arrow_line.p1())
arrow_head2_line.setLength(arrow_size / 4)
arrow_head2_line.setAngle(arrow_line.angle() - 45)
arrow_head2 = QGraphicsLineItem()
arrow_head2.setLine(arrow_head2_line)
self.addToGroup(arrow_head2)
text = QGraphicsTextItem()
text.setPlainText(f'{str(value)}{unit}')
text.setPos(arrow_line.p2())
self.addToGroup(text)
self._set_color()
def addLink(self, output, input):
"""
Add a link between `output` (:class:`OutputSignal`) and `input`
(:class:`InputSignal`).
"""
if not compatible_channels(output, input):
return
if output not in self.source.output_channels():
raise ValueError("%r is not an output channel of %r" % \
(output, self.source))
if input not in self.sink.input_channels():
raise ValueError("%r is not an input channel of %r" % \
(input, self.sink))
if input.single:
# Remove existing link if it exists.
for s1, s2, _ in self.__links:
if s2 == input:
self.removeLink(s1, s2)
line = QGraphicsLineItem(self)
source_anchor = self.sourceNodeWidget.anchor(output)
sink_anchor = self.sinkNodeWidget.anchor(input)
source_pos = source_anchor.boundingRect().center()
source_pos = self.mapFromItem(source_anchor, source_pos)
sink_pos = sink_anchor.boundingRect().center()
sink_pos = self.mapFromItem(sink_anchor, sink_pos)
line.setLine(source_pos.x(), source_pos.y(), sink_pos.x(),
sink_pos.y())
pen = QPen(Qt.black, 4)
pen.setCapStyle(Qt.RoundCap)
line.setPen(pen)
self.__links.append(_Link(output, input, line))
class ParticipantItem(QGraphicsItem):
def __init__(self, model_item: Participant, parent=None):
super().__init__(parent)
self.model_item = model_item
self.text = QGraphicsTextItem(self)
self.line = QGraphicsLineItem(self)
self.line.setPen(QPen(Qt.darkGray, 1, Qt.DashLine, Qt.RoundCap, Qt.RoundJoin))
self.refresh()
def update_position(self, x_pos=-1, y_pos=-1):
if x_pos == -1:
x_pos = self.x_pos()
if y_pos == -1:
y_pos = self.line.line().y2()
self.text.setPos(x_pos - (self.text.boundingRect().width() / 2), 0)
self.line.setLine(x_pos, 30, x_pos, y_pos)
def x_pos(self):
return self.line.line().x1()
def width(self):
return self.boundingRect().width()
def refresh(self):
self.text.setPlainText("?" if not self.model_item else self.model_item.shortname)
def boundingRect(self):
return self.childrenBoundingRect()
def paint(self, painter, option, widget):
pass
def addCircle(self, index, points, r):
(x, y) = points
circleItem = QGraphicsEllipseItem(x - r, y - r, 2 * r, 2 * r)
circleItem.setPen(self.pen)
# self.scene.addItem(circleItem)
#横线
line1 = QGraphicsLineItem()
line1.setPen(self.pen)
line1.setLine(x - self.lineRadius, y, x + self.lineRadius, y)
#竖线
line2 = QGraphicsLineItem()
line2.setPen(self.pen)
line2.setLine(x, y - self.lineRadius, x, y + self.lineRadius)
#文字说明
text = QGraphicsTextItem()
text.setDefaultTextColor(Qt.blue)
text.setFont(self.font)
text.setPlainText(str(self.names[index]))
text.setPos(x, y)
#放到组中
pointGroup = QGraphicsItemGroup()
pointGroup.addToGroup(line1)
pointGroup.addToGroup(line2)
pointGroup.addToGroup(text)
pointGroup.addToGroup(circleItem)
#显示该点
self.scene.addItem(pointGroup)
self.pointsItem.append(pointGroup)
class DoublePipeSegmentItem(SegmentItemBase):
def __init__(self, startNode, endNode, parent: "ConnectionBase"):
super().__init__(startNode, endNode, parent)
self.blueLine = QGraphicsLineItem(self)
self.redLine = QGraphicsLineItem(self)
def _createSegment(self, startNode, endNode) -> "SegmentItemBase":
return DoublePipeSegmentItem(startNode, endNode, self.connection)
def _setLineImpl(self, x1, y1, x2, y2):
self.blueLine.setPen(QtGui.QPen(QtCore.Qt.blue, 3))
self.redLine.setPen(QtGui.QPen(QtCore.Qt.red, 3))
offset = 3
if abs(y1 - y2) < 1:
self.blueLine.setLine(x1, y1 + offset, x2, y2 + offset)
self.redLine.setLine(x1, y1 - offset, x2, y2 - offset)
elif abs(x1 - x2) < 1:
self.blueLine.setLine(x1 + offset, y1, x2 + offset, y2)
self.redLine.setLine(x1 - offset, y1, x2 - offset, y2)
else:
# Initially, connections go directly between its two ports: only
# afterwards are they broken up into horizontal and vertical segments.
# This is probably an artifact of back when connections didn't have to
# be straight. Once, these artifacts have been removed, we should throw here.
pass
self.linePoints = QLineF(x1, y1, x2, y2)
def updateGrad(self):
self.blueLine.setPen(QtGui.QPen(QtCore.Qt.blue, 3))
self.redLine.setPen(QtGui.QPen(QtCore.Qt.red, 3))
def setSelect(self, isSelected: bool) -> None:
if isSelected:
selectPen = self._createSelectPen()
self.blueLine.setPen(selectPen)
self.redLine.setPen(selectPen)
else:
self.updateGrad()
def setColorAndWidthAccordingToMassflow(self, color, width):
pass
class ChartView(QChartView):
def __init__(self, *args, **kwargs):
super(ChartView, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.setRenderHint(QPainter.Antialiasing) # 抗锯齿
self.initChart()
self.toolTipWidget = GraphicsProxyWidget(self._chart)
# line
self.lineItem = QGraphicsLineItem(self._chart)
self.lineItem.setZValue(998)
self.lineItem.hide()
# 一些固定计算，减少mouseMoveEvent中的计算量
# 获取x和y轴的最小最大值
axisX, axisY = self._chart.axisX(), self._chart.axisY()
self.min_x, self.max_x = axisX.min(), axisX.max()
self.min_y, self.max_y = axisY.min(), axisY.max()
# 坐标系中左上角顶点
self.point_top = self._chart.mapToPosition(QPointF(self.min_x, self.max_y))
# 坐标原点坐标
self.point_bottom = self._chart.mapToPosition(QPointF(self.min_x, self.min_y))
self.step_x = (self.max_x - self.min_x) / (axisX.tickCount() - 1)
# self.step_y = (self.max_y - self.min_y) / (axisY.tickCount() - 1)
def mouseMoveEvent(self, event):
super(ChartView, self).mouseMoveEvent(event)
# 把鼠标位置所在点转换为对应的xy值
x = self._chart.mapToValue(event.pos()).x()
y = self._chart.mapToValue(event.pos()).y()
index = round((x - self.min_x) / self.step_x)
pos_x = self._chart.mapToPosition(
QPointF(index * self.step_x + self.min_x, self.min_y))
# print(x, pos_x, index, index * self.step_x + self.min_x)
# 得到在坐标系中的所有series的类型和点
points = [(serie, serie.at(index))
for serie in self._chart.series() if self.min_x <= x <= self.max_x and self.min_y <= y <= self.max_y]
if points:
# 永远在轴上的黑线条
self.lineItem.setLine(pos_x.x(), self.point_top.y(),
pos_x.x(), self.point_bottom.y())
self.lineItem.show()
self.toolTipWidget.show("", points, event.pos() + QPoint(20, 20))
else:
self.toolTipWidget.hide()
self.lineItem.hide()
def onSeriesHoverd(self, point, state):
if state:
try:
name = self.sender().name()
except:
name = ""
QToolTip.showText(QCursor.pos(), "%s\nx: %s\ny: %s" %
(name, point.x(), point.y()))
def initChart(self):
self._chart = QChart(title="Line Chart")
self._chart.setAcceptHoverEvents(True)
dataTable = [
[120, 132, 101, 134, 90, 230, 210],
[220, 182, 191, 234, 290, 330, 310],
[150, 232, 201, 154, 190, 330, 410],
[320, 332, 301, 334, 390, 330, 320],
[820, 932, 901, 934, 1290, 1330, 1320]
]
for i, data_list in enumerate(dataTable):
series = QLineSeries(self._chart)
for j, v in enumerate(data_list):
series.append(j, v)
series.setName("Series " + str(i))
series.setPointsVisible(True) # 显示原点
series.hovered.connect(self.onSeriesHoverd)
self._chart.addSeries(series)
self._chart.createDefaultAxes() # 创建默认的轴
self._chart.axisX().setTickCount(7) # x轴设置7个刻度
self._chart.axisY().setTickCount(7) # y轴设置7个刻度
self._chart.axisY().setRange(0, 1500) # 设置y轴范围
self.setChart(self._chart)
class ChartView(QChartView):
def __init__(self, *args, **kwargs):
super(ChartView, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.setRenderHint(QPainter.Antialiasing) # 抗锯齿
# 自定义x轴label
self.category = ["周一", "周二", "周三", "周四", "周五", "周六", "周日"]
self.initChart()
# 提示widget
self.toolTipWidget = GraphicsProxyWidget(self._chart)
# line
self.lineItem = QGraphicsLineItem(self._chart)
pen = QPen(Qt.gray)
pen.setWidth(1)
self.lineItem.setPen(pen)
self.lineItem.setZValue(996)
self.lineItem.hide()
self.lineItemX = QGraphicsLineItem(self._chart)
penx = QPen(Qt.gray)
penx.setWidth(1)
self.lineItemX.setPen(penx)
self.lineItemX.setZValue(997)
self.lineItemX.hide()
# 一些固定计算，减少mouseMoveEvent中的计算量
# 获取x和y轴的最小最大值
axisX, axisY = self._chart.axisX(), self._chart.axisY()
self.min_x, self.max_x = axisX.min(), axisX.max()
self.min_y, self.max_y = axisY.min(), axisY.max()
def resizeEvent(self, event):
super(ChartView, self).resizeEvent(event)
# 当窗口大小改变时需要重新计算
# 坐标系中左上角顶点
self.point_top = self._chart.mapToPosition(
QPointF(self.min_x, self.max_y))
# 坐标右上点
self.point_right_top = self._chart.mapToPosition(
QPointF(self.max_x, self.max_y))
# 坐标右下点
self.point_right_bottom = self._chart.mapToPosition(
QPointF(self.max_x, self.min_y))
# 坐标原点坐标
self.point_bottom = self._chart.mapToPosition(
QPointF(self.min_x, self.min_y))
self.step_x = (self.max_x - self.min_x) / \
(self._chart.axisX().tickCount() - 1)
def mouseMoveEvent(self, event):
super(ChartView, self).mouseMoveEvent(event)
pos = event.pos()
# 把鼠标位置所在点转换为对应的xy值
x = self._chart.mapToValue(pos).x()
y = self._chart.mapToValue(pos).y()
# 根据间隔来确定鼠标当前所在的索引
index = round((x - self.min_x) / self.step_x)
# 得到在坐标系中的所有正常显示的series的类型和点
points = [
(serie, serie.at(index)) for serie in self._chart.series()
if self.min_x <= x <= self.max_x and self.min_y <= y <= self.max_y
]
if points:
# 根据鼠标的点获取对应曲线的坐标点，
# pos_x = self._chart.mapToPosition(
# QPointF(index * self.step_x + self.min_x, self.min_y))
# 设置鼠标的垂直线
self.lineItem.setLine(pos.x(), self.point_top.y(), pos.x(),
self.point_bottom.y())
self.lineItem.show()
# 设置鼠标的水平线
self.lineItemX.setLine(self.point_top.x(), pos.y(),
self.point_right_top.x(), pos.y())
self.lineItemX.show()
try:
title = self.category[index]
except:
title = ""
t_width = self.toolTipWidget.width()
t_height = self.toolTipWidget.height()
# 如果鼠标位置离右侧的距离小于tip宽度
x = pos.x() - t_width if self.width() - \
pos.x() - 20 < t_width else pos.x()
# 如果鼠标位置离底部的高度小于tip高度
y = pos.y() - t_height if self.height() - \
pos.y() - 20 < t_height else pos.y()
self.toolTipWidget.show(title, points, QPoint(x, y))
else:
self.toolTipWidget.hide()
self.lineItem.hide()
self.lineItemX.hide()
def handleMarkerClicked(self):
marker = self.sender() # 信号发送者
if not marker:
return
visible = not marker.series().isVisible()
# 隐藏或显示series
marker.series().setVisible(visible)
marker.setVisible(True) # 要保证marker一直显示
# 透明度
alpha = 1.0 if visible else 0.4
# 设置label的透明度
brush = marker.labelBrush()
color = brush.color()
color.setAlphaF(alpha)
brush.setColor(color)
marker.setLabelBrush(brush)
# 设置marker的透明度
brush = marker.brush()
color = brush.color()
color.setAlphaF(alpha)
brush.setColor(color)
marker.setBrush(brush)
# 设置画笔透明度
pen = marker.pen()
color = pen.color()
color.setAlphaF(alpha)
pen.setColor(color)
marker.setPen(pen)
def handleMarkerHovered(self, status):
# 设置series的画笔宽度
marker = self.sender() # 信号发送者
if not marker:
return
series = marker.series()
if not series:
return
pen = series.pen()
if not pen:
return
pen.setWidth(pen.width() + (1 if status else -1))
series.setPen(pen)
def handleSeriesHoverd(self, point, state):
# 设置series的画笔宽度
series = self.sender() # 信号发送者
pen = series.pen()
if not pen:
return
pen.setWidth(pen.width() + (1 if state else -1))
series.setPen(pen)
def initChart(self):
self._chart = QChart(title="折线图堆叠")
self._chart.setAcceptHoverEvents(True)
# Series动画
self._chart.setAnimationOptions(QChart.SeriesAnimations)
dataTable = [["邮件营销", [120, 132, 101, 134, 90, 230, 210]],
["联盟广告", [220, 182, 191, 234, 290, 330, 310]],
["视频广告", [150, 232, 201, 154, 190, 330, 410]],
["直接访问", [320, 332, 301, 334, 390, 330, 320]],
["搜索引擎", [820, 932, 901, 934, 1290, 1330, 1320]]]
for series_name, data_list in dataTable:
series = QLineSeries(self._chart)
for j, v in enumerate(data_list):
series.append(j, v)
series.setName(series_name)
series.setPointsVisible(True) # 显示圆点
series.hovered.connect(self.handleSeriesHoverd) # 鼠标悬停
self._chart.addSeries(series)
self._chart.createDefaultAxes() # 创建默认的轴
axisX = self._chart.axisX() # x轴
axisX.setTickCount(7) # x轴设置7个刻度
axisX.setGridLineVisible(False) # 隐藏从x轴往上的线条
axisY = self._chart.axisY()
axisY.setTickCount(7) # y轴设置7个刻度
axisY.setRange(0, 1500) # 设置y轴范围
# 自定义x轴
axis_x = QCategoryAxis(
self._chart,
labelsPosition=QCategoryAxis.AxisLabelsPositionOnValue)
axis_x.setTickCount(7)
axis_x.setGridLineVisible(False)
min_x = axisX.min()
max_x = axisX.max()
step = (max_x - min_x) / (7 - 1) # 7个tick
for i in range(0, 7):
axis_x.append(self.category[i], min_x + i * step)
self._chart.setAxisX(axis_x, self._chart.series()[-1])
# self._chart.addAxis(axis_x, Qt.AlignBottom)
# chart的图例
legend = self._chart.legend()
# 设置图例由Series来决定样式
legend.setMarkerShape(QLegend.MarkerShapeFromSeries)
# 遍历图例上的标记并绑定信号
for marker in legend.markers():
# 点击事件
marker.clicked.connect(self.handleMarkerClicked)
# 鼠标悬停事件
marker.hovered.connect(self.handleMarkerHovered)
self.setChart(self._chart)
class DiagramScene(QGraphicsScene):
insert_item, insert_line, move_item = range(3)
item_inserted = pyqtSignal(DiagramItem)
def __init__(self, context_menu: QMenu, parent: QGraphicsItem = None):
super(DiagramScene, self).__init__(parent)
self.context_menu = context_menu
self.framework_name = frameworks_utils.get_sorted_frameworks_list()[0]
self.mode = self.move_item
self.item_type = None
self.line = None
# Could be used later to support items & lines coloring.
self.item_color = Qt.white
self.line_color = Qt.black
def set_framework_name(self, framework_name: str):
self.framework_name = framework_name
def set_mode(self, mode: int):
self.mode = mode
def set_item_type(self, item_type: int):
self.item_type = item_type
def mousePressEvent(self, event: QGraphicsSceneMouseEvent):
if event.button() != Qt.LeftButton:
return
if self.mode == self.insert_item:
layers = frameworks_utils.get_framework_layers(self.framework_name)
item = DiagramItem(layers[self.item_type](), self.context_menu)
item.setBrush(self.item_color)
item.setPos(event.scenePos())
self.addItem(item)
self.item_inserted.emit(item)
elif self.mode == self.insert_line:
self.line = QGraphicsLineItem(
QLineF(event.scenePos(), event.scenePos()))
self.line.setPen(QPen(self.line_color, 2))
self.addItem(self.line)
super(DiagramScene, self).mousePressEvent(event)
def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent):
if self.mode == self.insert_line and self.line:
new_line = QLineF(self.line.line().p1(), event.scenePos())
self.line.setLine(new_line)
elif self.mode == self.move_item:
super(DiagramScene, self).mouseMoveEvent(event)
def mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent):
if self.mode == self.insert_line and self.line:
start_items = self.items(self.line.line().p1())
if len(start_items) and start_items[0] == self.line:
start_items.pop(0)
end_items = self.items(self.line.line().p2())
if len(end_items) and end_items[0] == self.line:
end_items.pop(0)
self.removeItem(self.line)
self.line = None
if len(start_items) and isinstance(start_items[0],
QGraphicsSimpleTextItem):
start_items[0] = start_items[0].parentItem()
if len(end_items) and isinstance(end_items[0],
QGraphicsSimpleTextItem):
end_items[0] = end_items[0].parentItem()
if (len(start_items) and len(end_items)
and isinstance(start_items[0], DiagramItem)
and isinstance(end_items[0], DiagramItem)
and start_items[0] != end_items[0]):
start_item = start_items[0]
end_item = end_items[0]
arrow = Arrow(start_item, end_item)
start_item.add_arrow(arrow)
end_item.add_arrow(arrow)
arrow.setZValue(-1000.0)
self.addItem(arrow)
arrow.updatePosition()
self.line = None
super(DiagramScene, self).mouseReleaseEvent(event)
def isItemChange(self, type_: DiagramItem) -> bool:
for item in self.selectedItems():
if isinstance(item, type_):
return True
return False
class ImageViewer(QGraphicsView, QObject):
points_selection_sgn = pyqtSignal(list)
key_press_sgn = pyqtSignal(QtGui.QKeyEvent)
def __init__(self, parent=None):
super(ImageViewer, self).__init__(parent)
self.setDragMode(QGraphicsView.ScrollHandDrag)
self.setRenderHints(QPainter.Antialiasing
| QPainter.SmoothPixmapTransform)
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
self.setResizeAnchor(QGraphicsView.AnchorUnderMouse)
self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
self._scene = ImageViewerScene(self)
self.setScene(self._scene)
self._image = None
self._image_original = None
self._pixmap = None
self._img_contrast = 1.0
self._img_brightness = 50.0
self._img_gamma = 1.0
self._create_grid()
self._channels = []
self._current_tool = SELECTION_TOOL.POINTER
self._dataset = None
# create grid lines
pen_color = QColor(255, 255, 255, 255)
pen = QPen(pen_color)
pen.setWidth(2)
pen.setStyle(QtCore.Qt.DotLine)
self.vline = QGraphicsLineItem()
self.vline.setVisible(False)
self.vline.setPen(pen)
self.hline = QGraphicsLineItem()
self.hline.setVisible(False)
self.hline.setPen(pen)
self._scene.addItem(self.vline)
self._scene.addItem(self.hline)
self._current_label = None
# rectangle selection tool
self._rectangle_tool_origin = QPoint()
self._rectangle_tool_picker = QRubberBand(QRubberBand.Rectangle, self)
# polygon selection tool
app = QApplication.instance()
color = app.palette().color(QPalette.Highlight)
self._polygon_guide_line_pen = QPen(color)
self._polygon_guide_line_pen.setWidth(3)
self._polygon_guide_line_pen.setStyle(QtCore.Qt.DotLine)
self._polygon_guide_line = QGraphicsLineItem()
self._polygon_guide_line.setVisible(False)
self._polygon_guide_line.setPen(self._polygon_guide_line_pen)
self._scene.addItem(self._polygon_guide_line)
self._current_polygon = None
# circle
self._current_ellipse = None
# free selection tool
self._current_free_path = None
self._is_drawing = False
self._last_point_drawn = QPoint()
self._last_click_point = None
self._free_Path_pen = QPen(color)
self._free_Path_pen.setWidth(10)
self._extreme_points = Queue(maxsize=4)
@property
def current_label(self):
return self._current_label
@current_label.setter
def current_label(self, value):
self._current_label = value
if self._current_label:
color = QColor(self._current_label.color)
self._free_Path_pen.setColor(color)
self._polygon_guide_line_pen.setColor(color)
self._polygon_guide_line.setPen(self._polygon_guide_line_pen)
@property
def dataset(self):
return self._dataset
@dataset.setter
def dataset(self, value):
self._dataset = value
@property
def img_contrast(self):
return self._img_contrast
@img_contrast.setter
def img_contrast(self, value):
self._img_contrast = value
@property
def img_gamma(self):
return self._img_gamma
@img_gamma.setter
def img_gamma(self, value):
self._img_gamma = value
@property
def img_brightness(self):
return self._img_brightness
@img_brightness.setter
def img_brightness(self, value):
self._img_brightness = value
@property
def image(self):
return self._image
@image.setter
def image(self, value):
self._image = value
self._image_original = value.copy()
self.update_viewer()
@property
def pixmap(self) -> ImagePixmap:
return self._pixmap
@gui_exception
def update_viewer(self, fit_image=True):
rgb = cv2.cvtColor(self._image, cv2.COLOR_BGR2RGB)
rgb = ImageUtilities.adjust_image(rgb, self._img_contrast,
self._img_brightness)
rgb = ImageUtilities.adjust_gamma(rgb, self._img_gamma)
pil_image = Image.fromarray(rgb)
qppixmap_image = pil_image.toqpixmap()
x, y = -qppixmap_image.width() / 2, -qppixmap_image.height() / 2
if self._pixmap:
self._pixmap.resetTransform()
self._pixmap.setPixmap(qppixmap_image)
self._pixmap.setOffset(x, y)
else:
self._pixmap = ImagePixmap()
self._pixmap.setPixmap(qppixmap_image)
self._pixmap.setOffset(x, y)
self._scene.addItem(self._pixmap)
self._pixmap.signals.hoverEnterEventSgn.connect(
self.pixmap_hoverEnterEvent_slot)
self._pixmap.signals.hoverLeaveEventSgn.connect(
self.pixmap_hoverLeaveEvent_slot)
self._pixmap.signals.hoverMoveEventSgn.connect(
self.pixmap_hoverMoveEvent_slot)
self._hide_guide_lines()
if fit_image:
self.fit_to_window()
@gui_exception
def reset_viewer(self):
self._img_contrast = 1.0
self._img_brightness = 50.0
self._img_gamma = 1.0
self._image = self._image_original.copy()
@gui_exception
def equalize_histogram(self):
self._image = ImageUtilities.histogram_equalization(self._image)
@gui_exception
def correct_lightness(self):
self._image = ImageUtilities.correct_lightness(self._image)
def clusterize(self, k):
self._image = ImageUtilities.kmeans(self._image.copy(), k)
@property
def current_tool(self):
return self._current_tool
@current_tool.setter
def current_tool(self, value):
self._polygon_guide_line.hide()
self._current_polygon = None
self._current_free_path = None
self._current_ellipse = None
self._is_drawing = value == SELECTION_TOOL.FREE
self._current_tool = value
self.clear_extreme_points()
if value == SELECTION_TOOL.POINTER:
self.enable_items(True)
else:
self.enable_items(False)
def fit_to_window(self):
if not self._pixmap or not self._pixmap.pixmap():
return
self.resetTransform()
self.setTransform(QtGui.QTransform())
self.fitInView(self._pixmap, QtCore.Qt.KeepAspectRatio)
def _create_grid(self, gridSize=15):
app: QApplication = QApplication.instance()
curr_theme = "dark"
if app:
curr_theme = app.property("theme")
if curr_theme == "light":
color1 = QtGui.QColor("white")
color2 = QtGui.QColor(237, 237, 237)
else:
color1 = QtGui.QColor(20, 20, 20)
color2 = QtGui.QColor(0, 0, 0)
backgroundPixmap = QtGui.QPixmap(gridSize * 2, gridSize * 2)
backgroundPixmap.fill(color1)
painter = QtGui.QPainter(backgroundPixmap)
painter.fillRect(0, 0, gridSize, gridSize, color2)
painter.fillRect(gridSize, gridSize, gridSize, gridSize, color2)
painter.end()
self._scene.setBackgroundBrush(QtGui.QBrush(backgroundPixmap))
def wheelEvent(self, event: QWheelEvent):
adj = (event.angleDelta().y() / 120) * 0.1
self.scale(1 + adj, 1 + adj)
@gui_exception
def keyPressEvent(self, event: QKeyEvent):
if event.key() == QtCore.Qt.Key_Space:
image_rect: QRectF = self._pixmap.sceneBoundingRect()
if self.current_tool == SELECTION_TOOL.POLYGON and self._current_polygon:
points = self._current_polygon.points
self._polygon_guide_line.hide()
self.setDragMode(QGraphicsView.ScrollHandDrag)
if len(points) <= 2:
self._current_polygon.delete_item()
self.current_tool = SELECTION_TOOL.POINTER
elif self.current_tool == SELECTION_TOOL.EXTREME_POINTS and \
self._extreme_points.full():
points = []
image_offset = QPointF(image_rect.width() / 2,
image_rect.height() / 2)
for pt in self._extreme_points.queue:
pt: EditablePolygonPoint
center = pt.sceneBoundingRect().center()
x = math.floor(center.x() + image_offset.x())
y = math.floor(center.y() + image_offset.y())
points.append([x, y])
self.points_selection_sgn.emit(points)
self.current_tool = SELECTION_TOOL.POINTER
else:
event.ignore()
# guide lines events
def _show_guide_lines(self):
if self.hline and self.vline:
self.hline.show()
self.vline.show()
def _hide_guide_lines(self):
if self.hline and self.vline:
self.hline.hide()
self.vline.hide()
def _update_guide_lines(self, x, y):
bbox: QRect = self._pixmap.boundingRect()
offset = QPointF(bbox.width() / 2, bbox.height() / 2)
self.vline.setLine(x, -offset.y(), x, bbox.height() - offset.y())
self.vline.setZValue(1)
self.hline.setLine(-offset.x(), y, bbox.width() - offset.x(), y)
self.hline.setZValue(1)
def pixmap_hoverMoveEvent_slot(self, evt: QGraphicsSceneHoverEvent, x, y):
self._update_guide_lines(x, y)
def pixmap_hoverEnterEvent_slot(self):
self._show_guide_lines()
def pixmap_hoverLeaveEvent_slot(self):
self._hide_guide_lines()
def delete_polygon_slot(self, polygon: EditablePolygon):
self._current_polygon = None
self.current_tool = SELECTION_TOOL.POINTER
self._polygon_guide_line.hide()
@gui_exception
def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:
image_rect: QRectF = self._pixmap.boundingRect()
mouse_pos = self.mapToScene(evt.pos())
if evt.buttons() == QtCore.Qt.LeftButton:
if self.current_tool == SELECTION_TOOL.BOX:
# create rectangle
self.setDragMode(QGraphicsView.NoDrag)
self._rectangle_tool_origin = evt.pos()
geometry = QRect(self._rectangle_tool_origin, QSize())
self._rectangle_tool_picker.setGeometry(geometry)
self._rectangle_tool_picker.show()
elif self.current_tool == SELECTION_TOOL.POLYGON:
if image_rect.contains(mouse_pos):
if self._current_polygon is None:
self._current_polygon = EditablePolygon()
self._current_polygon.label = self._current_label
self._current_polygon.tag = self._dataset
self._current_polygon.signals.deleted.connect(
self.delete_polygon_slot)
self._scene.addItem(self._current_polygon)
self._current_polygon.addPoint(mouse_pos)
else:
self._current_polygon.addPoint(mouse_pos)
elif self.current_tool == SELECTION_TOOL.ELLIPSE:
if image_rect.contains(mouse_pos):
self.setDragMode(QGraphicsView.NoDrag)
ellipse_rec = QtCore.QRectF(mouse_pos.x(), mouse_pos.y(),
0, 0)
self._current_ellipse = EditableEllipse()
self._current_ellipse.tag = self.dataset
self._current_ellipse.label = self._current_label
self._current_ellipse.setRect(ellipse_rec)
self._scene.addItem(self._current_ellipse)
elif self.current_tool == SELECTION_TOOL.FREE:
# consider only the points into the image
if image_rect.contains(mouse_pos):
self.setDragMode(QGraphicsView.NoDrag)
self._last_point_drawn = mouse_pos
self._current_free_path = QGraphicsPathItem()
self._current_free_path.setOpacity(0.6)
self._current_free_path.setPen(self._free_Path_pen)
painter = QPainterPath()
painter.moveTo(self._last_point_drawn)
self._current_free_path.setPath(painter)
self._scene.addItem(self._current_free_path)
elif self.current_tool == SELECTION_TOOL.EXTREME_POINTS:
if image_rect.contains(mouse_pos):
if not self._extreme_points.full():
def delete_point(idx):
del self._extreme_points.queue[idx]
idx = self._extreme_points.qsize()
editable_pt = EditablePolygonPoint(idx)
editable_pt.signals.deleted.connect(delete_point)
editable_pt.setPos(mouse_pos)
self._scene.addItem(editable_pt)
self._extreme_points.put(editable_pt)
else:
self.setDragMode(QGraphicsView.ScrollHandDrag)
super(ImageViewer, self).mousePressEvent(evt)
@gui_exception
def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
mouse_pos = self.mapToScene(evt.pos())
image_rect: QRectF = self._pixmap.boundingRect()
if self.current_tool == SELECTION_TOOL.BOX:
if not self._rectangle_tool_origin.isNull():
geometry = QRect(self._rectangle_tool_origin,
evt.pos()).normalized()
self._rectangle_tool_picker.setGeometry(geometry)
elif self.current_tool == SELECTION_TOOL.POLYGON:
if self._current_polygon and image_rect.contains(mouse_pos):
if self._current_polygon.count > 0:
last_point: QPointF = self._current_polygon.last_point
self._polygon_guide_line.setZValue(1)
self._polygon_guide_line.show()
mouse_pos = self.mapToScene(evt.pos())
self._polygon_guide_line.setLine(last_point.x(),
last_point.y(),
mouse_pos.x(),
mouse_pos.y())
else:
self._polygon_guide_line.hide()
elif self.current_tool == SELECTION_TOOL.ELLIPSE:
if self._current_ellipse and image_rect.contains(mouse_pos):
ellipse_rect = self._current_ellipse.rect()
ellipse_pos = QPointF(ellipse_rect.x(), ellipse_rect.y())
distance = math.hypot(mouse_pos.x() - ellipse_pos.x(),
mouse_pos.y() - ellipse_pos.y())
ellipse_rect.setWidth(distance)
ellipse_rect.setHeight(distance)
self._current_ellipse.setRect(ellipse_rect)
elif self.current_tool == SELECTION_TOOL.FREE and evt.buttons(
) and QtCore.Qt.LeftButton:
if self._current_free_path and image_rect.contains(mouse_pos):
painter: QPainterPath = self._current_free_path.path()
self._last_point_drawn = self.mapToScene(evt.pos())
painter.lineTo(self._last_point_drawn)
self._current_free_path.setPath(painter)
super(ImageViewer, self).mouseMoveEvent(evt)
@gui_exception
def mouseReleaseEvent(self, evt: QtGui.QMouseEvent) -> None:
image_rect: QRectF = self._pixmap.boundingRect()
if self.current_tool == SELECTION_TOOL.BOX:
roi: QRect = self._rectangle_tool_picker.geometry()
roi: QRectF = self.mapToScene(roi).boundingRect()
self._rectangle_tool_picker.hide()
if image_rect == roi.united(image_rect):
rect = EditableBox(roi)
rect.label = self.current_label
rect.tag = self._dataset
self._scene.addItem(rect)
self.current_tool = SELECTION_TOOL.POINTER
self.setDragMode(QGraphicsView.ScrollHandDrag)
elif self.current_tool == SELECTION_TOOL.ELLIPSE and self._current_ellipse:
roi: QRect = self._current_ellipse.boundingRect()
if image_rect == roi.united(image_rect):
self.current_tool = SELECTION_TOOL.POINTER
self.setDragMode(QGraphicsView.ScrollHandDrag)
else:
self._current_ellipse.delete_item()
elif self.current_tool == SELECTION_TOOL.FREE and self._current_free_path:
# create polygon
self._current_free_path: QGraphicsPathItem
path_rect = self._current_free_path.boundingRect()
if image_rect == path_rect.united(image_rect):
path = self._current_free_path.path()
path_polygon = EditablePolygon()
path_polygon.tag = self.dataset
path_polygon.label = self.current_label
self._scene.addItem(path_polygon)
for i in range(0, path.elementCount(), 10):
x, y = path.elementAt(i).x, path.elementAt(i).y
path_polygon.addPoint(QPointF(x, y))
self._scene.removeItem(self._current_free_path)
self.current_tool = SELECTION_TOOL.POINTER
self.setDragMode(QGraphicsView.ScrollHandDrag)
super(ImageViewer, self).mouseReleaseEvent(evt)
def remove_annotations(self):
for item in self._scene.items():
if isinstance(item, EditableItem):
item.delete_item()
def remove_annotations_by_label(self, label_name):
for item in self._scene.items():
if isinstance(item, EditableItem):
if item.label and item.label.name == label_name:
item.delete_item()
def enable_items(self, value):
for item in self._scene.items():
if isinstance(item, EditableItem):
item.setEnabled(value)
def clear_extreme_points(self):
if self._extreme_points.qsize() > 0:
for pt in self._extreme_points.queue:
self._scene.removeItem(pt)
self._extreme_points.queue.clear()
class PreXoverItemGroup(QGraphicsEllipseItem):
"""Summary
Attributes:
active_wedge_gizmo (TYPE): Description
fwd_prexover_items (dict): Description
HUE_FACTOR (float): Description
id_num (TYPE): Description
is_active (TYPE): Description
model_part (Part): The model part
rev_prexover_items (dict): Description
SPIRAL_FACTOR (float): Description
virtual_helix_item (VirtualHelixItem): Description
"""
HUE_FACTOR = 1.6
SPIRAL_FACTOR = 0.4
def __init__(self, radius, rect, virtual_helix_item, is_active):
"""Summary
Args:
radius (TYPE): Description
rect (TYPE): Description
virtual_helix_item (VirtualHelixItem): Description
is_active (TYPE): Description
"""
super(PreXoverItemGroup, self).__init__(rect, virtual_helix_item)
self._radius = radius
self._rect = rect
self.virtual_helix_item = virtual_helix_item
self.model_part = virtual_helix_item.part()
self.id_num = virtual_helix_item.idNum()
self.is_active = is_active
self.active_wedge_gizmo = WedgeGizmo(radius, rect, self)
self.fwd_prexover_items = fwd_pxis = {}
self.rev_prexover_items = rev_pxis = {}
self._colors = self._getColors()
self.addItems()
self.setPen(getNoPen())
z = styles.ZPXIGROUP + 10 if is_active else styles.ZPXIGROUP
self.setZValue(z)
self.setTransformOriginPoint(rect.center())
bpr, tpr, eulerZ = virtual_helix_item.getProperty(['bases_per_repeat',
'turns_per_repeat',
'eulerZ'])
self.setRotation(-eulerZ) # add 180
# for baseNearestPoint
fwd_pos, rev_pos = [], []
step_size = self.virtual_helix_item.getProperty('bases_per_repeat')
for i in range(int(step_size)):
fwd_pos.append((fwd_pxis[i].scenePos().x(),
fwd_pxis[i].scenePos().y()))
rev_pos.append((rev_pxis[i].scenePos().x(),
rev_pxis[i].scenePos().y()))
self.fwd_pos_array = np.asarray(fwd_pos)
self.rev_pos_array = np.asarray(rev_pos)
self.baseNearLine = QGraphicsLineItem(self)
self.baseNearLine.setPen(getPenObj("#000000", 0.25, capstyle=Qt.RoundCap))
# end def
def mousePressEvent(self, event):
print("PreXoverGroup press")
def mouseMoveEvent(self, event):
print("PreXoverGroup move")
def mouseReleaseEvent(self, event):
print("PreXoverGroup release")
### ACCESSORS ###
def partItem(self):
"""Summary
Returns:
TYPE: Description
"""
return self.virtual_helix_item.partItem()
# end def
def getItem(self, is_fwd, step_idx):
"""Summary
Args:
is_fwd (TYPE): Description
step_idx (int): the base index within the virtual helix
Returns:
TYPE: Description
"""
items = self.fwd_prexover_items if is_fwd else self.rev_prexover_items
if step_idx in items:
return items[step_idx]
else:
return None
# end def
def getItemIdx(self, is_fwd, idx):
"""Summary
Args:
is_fwd (TYPE): Description
idx (int): the base index within the virtual helix
Returns:
TYPE: Description
"""
step_size = self.virtual_helix_item.getProperty('bases_per_repeat')
return self.getItem(is_fwd, idx % step_size)
# end def
### EVENT HANDLERS ###
### PRIVATE SUPPORT METHODS ###
def _getColors(self):
"""Summary
Returns:
TYPE: Description
"""
step_size = int(self.virtual_helix_item.getProperty('bases_per_repeat'))
hue_scale = step_size*self.HUE_FACTOR
return [QColor.fromHsvF(i / hue_scale, 0.75, 0.8).name() for i in range(step_size)]
# end def
### PUBLIC SUPPORT METHODS ###
def addItems(self):
"""Summary
"""
radius = self._radius
step_size, bases_per_turn, tpb, mgroove = self.virtual_helix_item.getAngularProperties()
# print("TPB", tpb, step_size)
iw = PXI_PP_ITEM_WIDTH
spiral_factor = self.SPIRAL_FACTOR
colors = self._colors
ctr = self.mapToParent(self._rect).boundingRect().center()
x = ctr.x() + radius - PXI_PP_ITEM_WIDTH
y = ctr.y()
# tpb = -tpb
# Qt +angle is Clockwise (CW), model +angle is CCW
mgroove = -mgroove
fwd_pxis = self.fwd_prexover_items
rev_pxis = self.rev_prexover_items
for i in range(int(step_size)):
inset = i*spiral_factor # spiral layout
fwd = PreXoverItem(i, tpb, step_size, colors[i], self, is_fwd=True)
rev = PreXoverItem(i, tpb, step_size, colors[-1 - i], self, is_fwd=False)
fwd.setPos(x - inset, y)
rev.setPos(x - inset, y)
fwd.setTransformOriginPoint((-radius + iw + inset), 0)
rev.setTransformOriginPoint((-radius + iw + inset), 0)
fwd.setRotation(round(i*tpb % 360, 3))
rev.setRotation(round((i*tpb + mgroove) % 360, 3))
fwd.setBondLineLength(inset + iw)
rev.setBondLineLength(inset + iw)
fwd_pxis[i] = fwd
rev_pxis[i] = rev
for i in range(int(step_size) - 1):
fwd, next_fwd = fwd_pxis[i], fwd_pxis[i + 1]
j = (step_size - 1) - i
rev, next_rev = rev_pxis[j], rev_pxis[j - 1]
fwd.set3pItem(next_fwd)
rev.set3pItem(next_rev)
next_fwd.set5pItem(fwd)
next_rev.set5pItem(rev)
# end def
def baseNearestPoint(self, is_fwd, scene_pos):
"""Summary
Args:
is_fwd (bool): used to check fwd or rev lists.
scene_pos (QPointF): scene coordinate position
Returns:
PreXoverItem: base nearest to position
"""
pos_array = self.fwd_pos_array if is_fwd else self.rev_pos_array
dist_2 = np.sum((pos_array - (scene_pos.x(), scene_pos.y()))**2, axis=1)
near_idx = np.argmin(dist_2)
near_pxi = self.fwd_prexover_items[near_idx] if is_fwd else self.rev_prexover_items[near_idx]
# Draw a line
p1 = self.mapFromScene(scene_pos.x(), scene_pos.y())
p2 = self.mapFromScene(near_pxi.scenePos())
line = QLineF(p1, p2)
self.baseNearLine.setLine(line)
def destroyItem(self):
"""Summary
"""
fpxis = self.fwd_prexover_items
rpxis = self.rev_prexover_items
scene = self.scene()
for i in range(len(fpxis)):
x = fpxis.pop(i)
x.destroyItem()
x = rpxis.pop(i)
x.destroyItem()
self.virtual_helix_item = None
self.model_part = None
scene.removeItem(self.active_wedge_gizmo)
self.active_wedge_gizmo = None
scene.removeItem(self)
# end def
def updateTurnsPerRepeat(self):
"""Summary
"""
step_size, bases_per_turn, tpb, mgroove = self.virtual_helix_item.getAngularProperties()
mgroove = -mgroove
fpxis = self.fwd_prexover_items
rpxis = self.rev_prexover_items
for i in range(int(step_size)):
fwd = self.fwd_prexover_items[i]
rev = self.rev_prexover_items[i]
fwd.setRotation(round((i*tpb) % 360, 3))
rev.setRotation(round((i*tpb + mgroove) % 360, 3))
for i in range(int(step_size) - 1):
fwd, next_fwd = fpxis[i], fpxis[i + 1]
j = (step_size - 1) - i
rev, next_rev = rpxis[j], rpxis[j - 1]
fwd.set3pItem(next_fwd)
rev.set3pItem(next_rev)
next_fwd.set5pItem(fwd)
next_rev.set5pItem(rev)
# end def
def partCrossoverSpanAngle(self):
"""
Returns:
int: Crossover span angle from Part.
"""
return self.virtual_helix_item.partCrossoverSpanAngle()
def updateModelActiveBaseInfo(self, pre_xover_info):
"""Notify model of pre_xover_item hover state.
"""
self.model_part.setActiveBaseInfo(pre_xover_info)
class MonoScene(QGraphicsScene):
def __init__(self):
super().__init__()
self.language = settings.LANG
self.csv_separator = settings.CSV_SEPARATOR
self.fmt_float = settings.FMT_FLOAT
self.nodes = {}
self.nb_nodes = 0
self.adj_list = {}
self.current_line = None
self.current_port = None
self.project_path = ''
self.setSceneRect(
QRectF(0, 0, settings.SCENE_SIZE[0], settings.SCENE_SIZE[1]))
self.transform = QTransform()
self.selectionChanged.connect(self.selection_changed)
self._init_with_default_node()
def reinit(self):
self.clear()
self._init_with_default_node()
self.update()
def _init_without_node(self):
self.nodes = {}
self.nb_nodes = 0
self.adj_list = {}
def _init_with_default_node(self):
self._init_without_node()
self.add_node(LoadSerafin2DNode(0), 50, 50)
self._add_current_line()
def _add_current_line(self):
self.current_line = QGraphicsLineItem()
self.addItem(self.current_line)
self.current_line.setVisible(False)
pen = QPen(QColor(0, 0, 0))
pen.setWidth(2)
self.current_line.setPen(pen)
self.current_port = None
def mousePressEvent(self, event):
super().mousePressEvent(event)
for node_index, node in enumerate(self.nodes.values()):
for port_index, port in enumerate(node.ports):
if port.isSelected():
self.current_port = (node_index, port_index)
def mouseMoveEvent(self, event):
super().mouseMoveEvent(event)
if self.current_port is not None:
port = self.nodes[self.current_port[0]].ports[self.current_port[1]]
self.current_line.setLine(
QLineF(port.mapToScene(port.rect().center()),
event.scenePos()))
self.current_line.setVisible(True)
def mouseReleaseEvent(self, event):
if self.current_port is not None:
target_item = self.itemAt(event.scenePos(), self.transform)
if isinstance(target_item, Port):
self._handle_add_link(target_item)
self.current_line.setVisible(False)
self.current_port = None
super().mouseReleaseEvent(event)
def mouseDoubleClickEvent(self, event):
super().mouseDoubleClickEvent(event)
target_item = self.itemAt(event.scenePos(), self.transform)
if isinstance(target_item, Link):
self._handle_remove_link(target_item)
elif isinstance(target_item, Box):
node = target_item.parentItem()
node.configure()
self.selection_changed()
def keyPressEvent(self, event):
if event.key() == Qt.Key_Delete:
selected = self.selectedItems()
if selected:
link = selected[0]
self._handle_remove_link(link)
def selection_changed(self):
view = self.views()[0]
selected = self.selectedItems()
if not selected:
view.deselect_node()
return
selected = selected[0]
if isinstance(selected, Node):
view.select_node(selected)
else:
view.deselect_node()
def add_node(self, node, x, y):
logger.debug('Add node #%i %s' %
(node.index(), node.label.replace('\n', ' ')))
self.addItem(node)
self.nodes[node.index()] = node
self.adj_list[node.index()] = set()
self.nb_nodes += 1
node.moveBy(x, y)
def save(self):
links = []
for item in self.items():
if isinstance(item, Link):
links.append(item.save())
yield '.'.join([self.language, self.csv_separator])
yield '%d %d' % (self.nb_nodes, len(links))
for node in self.nodes.values():
yield node.save()
for link in links:
yield link
def load(self, filename):
logger.debug('Loading project in MONO: %s' % filename)
self.project_path = filename
self.clear()
self._add_current_line()
self._init_without_node()
try:
with open(filename, 'r') as f:
self.language, self.csv_separator = f.readline().rstrip(
).split('.')
nb_nodes, nb_links = map(int, f.readline().split())
for _ in range(nb_nodes):
line = f.readline().rstrip().split('|')
category, name, index, x, y = line[:5]
node = NODES[category][name](int(index))
node.load(line[5:])
self.add_node(node, float(x), float(y))
for _ in range(nb_links):
from_node_index, from_port_index, \
to_node_index, to_port_index = map(int, f.readline().rstrip().split('|'))
from_node = self.nodes[from_node_index]
to_node = self.nodes[to_node_index]
from_port = from_node.ports[from_port_index]
to_port = to_node.ports[to_port_index]
_, _ = add_link(from_port, to_port)
link = Link(from_port, to_port)
from_node.add_link(link)
to_node.add_link(link)
self.addItem(link)
link.setZValue(-1)
self.adj_list[from_node_index].add(to_node_index)
self.adj_list[to_node_index].add(from_node_index)
self.update()
return True
except (IndexError, ValueError, KeyError) as e:
logger.exception(e)
logger.error("An exception occured while loading project in MONO.")
self.reinit()
return False
def run_all(self):
roots = self._to_sources()
for root in roots:
self.nodes[root].run_downward()
def _to_sources(self):
roots = []
visited = {node: False for node in self.nodes}
def forward(node):
for port in node.ports:
if port.type == Port.OUTPUT:
if port.has_children():
for child in port.children:
child_node = child.parentItem()
if not visited[child_node.index()]:
visited[child_node.index()] = False
forward(child_node)
def backward(node_index):
if not visited[node_index]:
visited[node_index] = True
node = self.nodes[node_index]
if node.ports[0].type == Port.INPUT:
backward(node.ports[0].parentItem().index())
if len(node.ports
) > 1 and node.ports[1].type == Port.INPUT:
backward(node.ports[1].parentItem().index())
else:
roots.append(node_index)
forward(node)
for node in self.nodes:
backward(node)
return roots
def _handle_add_link(self, target_item):
port_index = target_item.index()
node_index = target_item.parentItem().index()
if node_index == self.current_port[0]:
return
from_node, to_node, from_port, to_port = self._permute(
self.current_port[0], self.current_port[1], node_index, port_index)
if from_port is None:
QMessageBox.critical(
None, 'Error',
'Connections can only be established between Output and Input ports!',
QMessageBox.Ok)
return
success, cause = add_link(from_port, to_port)
if success:
link = Link(from_port, to_port)
from_node.add_link(link)
to_node.add_link(link)
self.addItem(link)
link.setZValue(-1)
self.update()
self.adj_list[from_node.index()].add(to_node.index())
self.adj_list[to_node.index()].add(from_node.index())
else:
if cause == 'already':
QMessageBox.critical(None, 'Error',
'These two ports are already connected.',
QMessageBox.Ok)
elif cause == 'type':
QMessageBox.critical(
None, 'Error',
'These two ports cannot be connected: incompatible data types.',
QMessageBox.Ok)
else:
QMessageBox.critical(
None, 'Error',
'The input port is already connected to another port.',
QMessageBox.Ok)
def _handle_remove_link(self, target_item):
msg = QMessageBox.warning(None, 'Confirm delete',
'Do you want to delete this link?',
QMessageBox.Ok | QMessageBox.Cancel,
QMessageBox.Ok)
if msg == QMessageBox.Cancel:
return
from_index, to_index = target_item.from_port.parentItem().index(
), target_item.to_port.parentItem().index()
self.adj_list[from_index].remove(to_index)
self.adj_list[to_index].remove(from_index)
target_item.remove()
self.removeItem(target_item)
def handle_remove_node(self, node):
msg = QMessageBox.warning(None, 'Confirm delete',
'Do you want to delete this node?',
QMessageBox.Ok | QMessageBox.Cancel,
QMessageBox.Ok)
if msg == QMessageBox.Cancel:
return
self.removeItem(node)
for link in node.links.copy():
link.remove()
self.removeItem(link)
del self.nodes[node.index()]
new_nodes = {}
self.nb_nodes -= 1
for index, node in zip(range(self.nb_nodes), self.nodes.values()):
new_nodes[index] = node
node.set_index(index)
self.nodes = new_nodes
self.adj_list = {node: set() for node in self.nodes}
for item in self.items():
if isinstance(item, Link):
from_index, to_index = item.from_port.parentItem().index(
), item.to_port.parentItem().index()
self.adj_list[from_index].add(to_index)
self.adj_list[to_index].add(from_index)
def _permute(self, first_node_index, first_port_index, second_node_index,
second_port_index):
first_node = self.nodes[first_node_index]
second_node = self.nodes[second_node_index]
p1 = first_node.ports[first_port_index]
p2 = second_node.ports[second_port_index]
if p1.type == Port.OUTPUT and p2.type == Port.INPUT:
return first_node, second_node, p1, p2
elif p1.type == Port.INPUT and p2.type == Port.OUTPUT:
return second_node, first_node, p2, p1
return None, None, None, None
def suffix_pool(self):
suffix = []
for node in self.nodes.values():
if hasattr(node, 'suffix'):
suffix.append(node.suffix)
return suffix
def not_connected(self):
nb_cc, _ = count_cc(list(self.adj_list.keys()), self.adj_list)
return nb_cc > 1
class DiagramScene(QGraphicsScene):
InsertItem, InsertLine, InsertText, MoveItem = range(4)
itemInserted = pyqtSignal(DiagramItem)
textInserted = pyqtSignal(QGraphicsTextItem)
itemSelected = pyqtSignal(QGraphicsItem)
def __init__(self, itemMenu, parent=None):
super(DiagramScene, self).__init__(parent)
self.myItemMenu = itemMenu
self.myMode = self.MoveItem
self.myItemType = DiagramItem.Step
self.line = None
self.textItem = None
self.myItemColor = Qt.white
self.myTextColor = Qt.black
self.myLineColor = Qt.black
self.myFont = QFont()
def setLineColor(self, color):
self.myLineColor = color
if self.isItemChange(Arrow):
item = self.selectedItems()[0]
item.setColor(self.myLineColor)
self.update()
def setTextColor(self, color):
self.myTextColor = color
if self.isItemChange(DiagramTextItem):
item = self.selectedItems()[0]
item.setDefaultTextColor(self.myTextColor)
def setItemColor(self, color):
self.myItemColor = color
if self.isItemChange(DiagramItem):
item = self.selectedItems()[0]
item.setBrush(self.myItemColor)
def setFont(self, font):
self.myFont = font
if self.isItemChange(DiagramTextItem):
item = self.selectedItems()[0]
item.setFont(self.myFont)
def setMode(self, mode):
self.myMode = mode
def setItemType(self, type):
self.myItemType = type
def editorLostFocus(self, item):
cursor = item.textCursor()
cursor.clearSelection()
item.setTextCursor(cursor)
if item.toPlainText():
self.removeItem(item)
item.deleteLater()
def mousePressEvent(self, mouseEvent):
if (mouseEvent.button() != Qt.LeftButton):
return
if self.myMode == self.InsertItem:
item = DiagramItem(self.myItemType, self.myItemMenu)
item.setBrush(self.myItemColor)
self.addItem(item)
item.setPos(mouseEvent.scenePos())
self.itemInserted.emit(item)
elif self.myMode == self.InsertLine:
self.line = QGraphicsLineItem(QLineF(mouseEvent.scenePos(),
mouseEvent.scenePos()))
self.line.setPen(QPen(self.myLineColor, 2))
self.addItem(self.line)
elif self.myMode == self.InsertText:
textItem = DiagramTextItem()
textItem.setFont(self.myFont)
textItem.setTextInteractionFlags(Qt.TextEditorInteraction)
textItem.setZValue(1000.0)
textItem.lostFocus.connect(self.editorLostFocus)
textItem.selectedChange.connect(self.itemSelected)
self.addItem(textItem)
textItem.setDefaultTextColor(self.myTextColor)
textItem.setPos(mouseEvent.scenePos())
self.textInserted.emit(textItem)
super(DiagramScene, self).mousePressEvent(mouseEvent)
def mouseMoveEvent(self, mouseEvent):
if self.myMode == self.InsertLine and self.line:
newLine = QLineF(self.line.line().p1(), mouseEvent.scenePos())
self.line.setLine(newLine)
elif self.myMode == self.MoveItem:
super(DiagramScene, self).mouseMoveEvent(mouseEvent)
def mouseReleaseEvent(self, mouseEvent):
if self.line and self.myMode == self.InsertLine:
startItems = self.items(self.line.line().p1())
if len(startItems) and startItems[0] == self.line:
startItems.pop(0)
endItems = self.items(self.line.line().p2())
if len(endItems) and endItems[0] == self.line:
endItems.pop(0)
self.removeItem(self.line)
self.line = None
if len(startItems) and len(endItems) and \
isinstance(startItems[0], DiagramItem) and \
isinstance(endItems[0], DiagramItem) and \
startItems[0] != endItems[0]:
startItem = startItems[0]
endItem = endItems[0]
arrow = Arrow(startItem, endItem)
arrow.setColor(self.myLineColor)
startItem.addArrow(arrow)
endItem.addArrow(arrow)
arrow.setZValue(-1000.0)
self.addItem(arrow)
arrow.updatePosition()
self.line = None
super(DiagramScene, self).mouseReleaseEvent(mouseEvent)
def isItemChange(self, type):
for item in self.selectedItems():
if isinstance(item, type):
return True
return False
class DiagramScene(QGraphicsScene):
InsertItem, InsertLine, InsertText, MoveItem, DefaultMode = range(5)
itemInserted = pyqtSignal(int)
textInserted = pyqtSignal(QGraphicsTextItem)
itemSelected = pyqtSignal(QGraphicsItem)
def __init__(self, item_menu, parent=None):
super(DiagramScene, self).__init__(parent)
self.my_item_menu = item_menu
self.my_mode = self.DefaultMode
self.my_item_type = "channel"
self.line = None
self.text_item = None
self.my_item_color = Qt.white
self.my_text_color = Qt.black
self.my_line_color = Qt.black
self.my_font = QFont()
self.m_drag_offset = 0
self.m_dragged = None
def set_line_color(self, color):
self.my_line_color = color
if self.is_item_changed(Arrow):
item = self.selectedItems()[0]
item.set_color(self.my_line_color)
self.update()
def set_text_color(self, color):
self.my_text_color = color
if self.is_item_changed(DiagramTextItem):
item = self.selectedItems()[0]
item.setDefaultTextColor(self.my_text_color)
def set_item_color(self, color):
self.my_item_color = color
if self.is_item_changed(DiagramTextItem):
item = self.selectedItems()[0]
item.setBrush(self.my_item_color)
def setFont(self, font):
self.my_font = font
if self.is_item_changed(DiagramTextItem):
item = self.selectedItems()[0]
item.setFont(self.my_font)
def set_mode(self, mode):
self.my_mode = mode
def set_item_type(self, new_type):
self.my_item_type = new_type
def editor_lost_focus(self, item):
if item:
cursor = item.text_cursor()
cursor.clearSelection()
item.set_text_cursor(cursor)
if item.to_plain_text():
self.removeItem(item)
item.delete_later()
# noinspection PyArgumentList
def insert_item(self, item_type=None, x=None, y=None, text=None):
if not text:
text, ok = QInputDialog.getText(QInputDialog(), 'Insert name', 'Enter new object name:')
if not ok: # TODO
return
item = FlumeObject(item_type, text).pictogram
item.setBrush(self.my_item_color)
self.addItem(item)
item.setPos(x, y)
return item
def mousePressEvent(self, mouse_event):
if mouse_event.button() != Qt.LeftButton:
return
if self.my_mode == self.InsertItem:
x = mouse_event.scenePos().x() # // 50 * 50
y = mouse_event.scenePos().y() # // 50 * 50
item = self.insert_item(self.my_item_type, x, y)
self.itemInserted.emit(item.flume_component)
elif self.my_mode == self.InsertLine:
self.line = QGraphicsLineItem(QLineF(mouse_event.scenePos(),
mouse_event.scenePos()))
self.line.setPen(QPen(self.my_line_color, 2))
self.addItem(self.line)
elif self.my_mode == self.InsertText:
text_item = DiagramTextItem()
text_item.setFont(self.my_font)
text_item.setTextInteractionFlags(Qt.TextEditorInteraction)
text_item.setZValue(1000.0)
text_item.lostFocus.connect(self.editor_lost_focus)
# text_item.selectedChange.connect(self.itemSelected)
self.addItem(text_item)
text_item.setDefaultTextColor(self.my_text_color)
text_item.setPos(mouse_event.scenePos())
self.textInserted.emit(text_item)
else:
self.m_dragged = QGraphicsScene.itemAt(self, mouse_event.scenePos(), QTransform())
if self.m_dragged:
self.my_mode = self.MoveItem
self.m_drag_offset = mouse_event.scenePos() - self.m_dragged.pos()
super(DiagramScene, self).mousePressEvent(mouse_event)
def mouseMoveEvent(self, mouse_event):
if self.my_mode == self.InsertLine and self.line:
new_line = QLineF(self.line.line().p1(), mouse_event.scenePos())
self.line.setLine(new_line)
elif self.my_mode == self.MoveItem:
if self.m_dragged:
self.m_dragged.setPos(mouse_event.scenePos() - self.m_drag_offset)
super(DiagramScene, self).mouseMoveEvent(mouse_event)
def mouseReleaseEvent(self, mouse_event):
if self.line and self.my_mode == self.InsertLine:
start_items = self.items(self.line.line().p1())
if len(start_items) and start_items[0] == self.line:
start_items.pop(0)
end_items = self.items(self.line.line().p2())
if len(end_items) and end_items[0] == self.line:
end_items.pop(0)
self.removeItem(self.line)
self.line = None
if len(start_items) and len(end_items) and isinstance(start_items[0], FlumeDiagramItem) and \
isinstance(end_items[0], FlumeDiagramItem) and start_items[0] != end_items[0]:
start_item = start_items[0]
end_item = end_items[0]
self.add_arrow(start_item, end_item)
self.line = None
if self.m_dragged:
x = mouse_event.scenePos().x() # // 50 * 50
y = mouse_event.scenePos().y() # // 50 * 50
self.m_dragged.setPos(x, y)
self.m_dragged = None
self.my_mode = self.DefaultMode
super(DiagramScene, self).mouseReleaseEvent(mouse_event)
def add_arrow(self, start_item, end_item):
arrow = Arrow(start_item, end_item)
arrow.set_color(self.my_line_color)
start_item.add_arrow(arrow)
end_item.add_arrow(arrow)
arrow.setZValue(-1000.0)
self.addItem(arrow)
arrow.update_position()
def is_item_changed(self, new_type):
for item in self.selectedItems():
if isinstance(item, new_type):
return True
return False
class BaseGraphic(object):
def __init__(self, *args):
super(BaseGraphic, self).__init__()
self.label = args[3]
self.parent = args[0]
self.section_analyzer = self.parent.section_analyzer
self.width = None
self.height = None
self.margin = None
self.position = args[1], args[2]
self.content_width = None
self.content_height = None
self.distance_pointer = None
self.distance_label = None
self.section_num = len(self.section_analyzer.section_list)
self.section_distance = self.section_analyzer.section_distance
self.length_multiplier = 100.0
self.height_multiplier = 100.0
self.line_extend = 20
self.margin = 50
self.material_legend = MaterialLegend(self)
self._inited = False
self.items = []
self.add_title()
def add_title(self):
if self.label:
title = QGraphicsSimpleTextItem(self.label)
title.setPos(self.position[0] + self.margin, self.position[1] + self.line_extend)
self.addToGroup(title)
def addToGroup(self, item):
self.items.append(item)
def create_distance_pointer(self):
self.distance_pointer = QGraphicsLineItem()
pen = QPen()
pen.setWidthF(1.0)
pen.setStyle(Qt.DashDotLine)
color = Color.create_qcolor_from_rgb_tuple_f((1,0,0))
pen.setColor(color)
self.distance_pointer.setPen(pen)
self.distance_pointer.setZValue(1.0)
self.addToGroup(self.distance_pointer)
self.distance_label = QGraphicsSimpleTextItem()
self.distance_label.setZValue(1.0)
self.addToGroup(self.distance_label)
def init_dimension(self):
section_num = len(self.section_analyzer.section_list)
section_distance = self.section_analyzer.section_distance
self.content_width = section_num * section_distance * self.length_multiplier
self.create_distance_pointer()
self._inited = True
def update_graph_size(self):
if self.content_height and self.content_width:
self.width = self.content_width + self.margin * 2
self.height = self.content_height + self.margin * 2
# bounding_rect.setWidth(self.width)
# bounding_rect.setHeight(self.height)
def set_distance_pointer(self, distance):
if self._inited:
x1 = self.position[0] + self.margin + distance * self.length_multiplier
y1 = self.position[1]
x2 = x1
y2 = y1 + self.height
self.distance_pointer.setLine(x1, y1, x2, y2)
self.distance_label.setText("%.2f" % distance)
self.distance_label.setPos(x2,y2)
pass
@staticmethod
def set_rect_fill(*args):
if args[0] == 0: #surface color mode
rect = args[1]
color = args[2]
qcolor = Color.create_qcolor_from_rgb_tuple_f(color)
brush = QBrush(qcolor)
rect.setBrush(brush)
def create_legend(self):
x = self.position[0] + self.width
y = self.position[1]
self.material_legend.create_material_legend(x, y)
for item in self.material_legend.graphic_items:
self.addToGroup(item)
class ChartView(QChartView):
def __init__(self, *args, **kwargs):
super(ChartView, self).__init__(*args, **kwargs)
self.resize(800, 600)
self.setRenderHint(QPainter.Antialiasing) # 抗锯齿
self.initChart()
# 提示widget
self.toolTipWidget = GraphicsProxyWidget(self._chart)
# line 宽度需要调整
self.lineItem = QGraphicsLineItem(self._chart)
pen = QPen(Qt.gray)
self.lineItem.setPen(pen)
self.lineItem.setZValue(998)
self.lineItem.hide()
# 一些固定计算，减少mouseMoveEvent中的计算量
# 获取x和y轴的最小最大值
axisX, axisY = self._chart.axisX(), self._chart.axisY()
self.category_len = len(axisX.categories())
self.min_x, self.max_x = -0.5, self.category_len - 0.5
self.min_y, self.max_y = axisY.min(), axisY.max()
# 坐标系中左上角顶点
self.point_top = self._chart.mapToPosition(
QPointF(self.min_x, self.max_y))
def mouseMoveEvent(self, event):
super(ChartView, self).mouseMoveEvent(event)
pos = event.pos()
# 把鼠标位置所在点转换为对应的xy值
x = self._chart.mapToValue(pos).x()
y = self._chart.mapToValue(pos).y()
index = round(x)
# 得到在坐标系中的所有bar的类型和点
serie = self._chart.series()[0]
bars = [(bar, bar.at(index))
for bar in serie.barSets() if self.min_x <= x <= self.max_x and self.min_y <= y <= self.max_y]
if bars:
right_top = self._chart.mapToPosition(
QPointF(self.max_x, self.max_y))
# 等分距离比例
step_x = round(
(right_top.x() - self.point_top.x()) / self.category_len)
posx = self._chart.mapToPosition(QPointF(x, self.min_y))
self.lineItem.setLine(posx.x(), self.point_top.y(),
posx.x(), posx.y())
self.lineItem.show()
try:
title = self.categories[index]
except:
title = ""
t_width = self.toolTipWidget.width()
t_height = self.toolTipWidget.height()
# 如果鼠标位置离右侧的距离小于tip宽度
x = pos.x() - t_width if self.width() - \
pos.x() - 20 < t_width else pos.x()
# 如果鼠标位置离底部的高度小于tip高度
y = pos.y() - t_height if self.height() - \
pos.y() - 20 < t_height else pos.y()
self.toolTipWidget.show(
title, bars, QPoint(x, y))
else:
self.toolTipWidget.hide()
self.lineItem.hide()
def handleMarkerClicked(self):
marker = self.sender() # 信号发送者
if not marker:
return
bar = marker.barset()
if not bar:
return
# bar透明度
brush = bar.brush()
color = brush.color()
alpha = 0.0 if color.alphaF() == 1.0 else 1.0
color.setAlphaF(alpha)
brush.setColor(color)
bar.setBrush(brush)
# marker
brush = marker.labelBrush()
color = brush.color()
alpha = 0.4 if color.alphaF() == 1.0 else 1.0
# 设置label的透明度
color.setAlphaF(alpha)
brush.setColor(color)
marker.setLabelBrush(brush)
# 设置marker的透明度
brush = marker.brush()
color = brush.color()
color.setAlphaF(alpha)
brush.setColor(color)
marker.setBrush(brush)
def handleMarkerHovered(self, status):
# 设置bar的画笔宽度
marker = self.sender() # 信号发送者
if not marker:
return
bar = marker.barset()
if not bar:
return
pen = bar.pen()
if not pen:
return
pen.setWidth(pen.width() + (1 if status else -1))
bar.setPen(pen)
def handleBarHoverd(self, status, index):
# 设置bar的画笔宽度
bar = self.sender() # 信号发送者
pen = bar.pen()
if not pen:
return
pen.setWidth(pen.width() + (1 if status else -1))
bar.setPen(pen)
def initChart(self):
self._chart = QChart(title="柱状图堆叠")
self._chart.setAcceptHoverEvents(True)
# Series动画
self._chart.setAnimationOptions(QChart.SeriesAnimations)
self.categories = ["周一", "周二", "周三", "周四", "周五", "周六", "周日"]
# names = ["邮件营销", "联盟广告", "视频广告", "直接访问", "搜索引擎"]
names = ["邮件营销", ]
series = QBarSeries(self._chart)
for name in names:
bar = QBarSet(name)
# 随机数据
for _ in range(7):
bar.append(randint(0, 10))
series.append(bar)
bar.hovered.connect(self.handleBarHoverd) # 鼠标悬停
self._chart.addSeries(series)
self._chart.createDefaultAxes() # 创建默认的轴
# x轴
axis_x = QBarCategoryAxis(self._chart)
axis_x.append(self.categories)
self._chart.setAxisX(axis_x, series)
# chart的图例
legend = self._chart.legend()
legend.setVisible(True)
# 遍历图例上的标记并绑定信号
for marker in legend.markers():
# 点击事件
marker.clicked.connect(self.handleMarkerClicked)
# 鼠标悬停事件
marker.hovered.connect(self.handleMarkerHovered)
self.setChart(self._chart)
class CalendarDesklet(Desklet):
def __init__(self):
super().__init__()
self.model = CalendarModel()
self.cursor_pos = None
self.cursor = QGraphicsRectItem(self.root)
self.header = QGraphicsSimpleTextItem(self.root)
self.weekdays = []
days = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
for day in days:
self.weekdays.append(QGraphicsSimpleTextItem(day, self.root))
self.header_line = QGraphicsLineItem(self.root)
self.days = []
for _ in range(0, 6 * 7):
self.days.append(QGraphicsSimpleTextItem(self.root))
def next_month(self):
self.model.next_month()
self.layout()
def previous_month(self):
self.model.previous_month()
self.layout()
def set_rect(self, rect):
super().set_rect(rect)
self.layout()
def set_style(self, style):
super().set_style(style)
font = QFont(style.font)
font.setPixelSize(48)
self.header.setBrush(style.midcolor)
self.header.setFont(font)
font = QFont(style.font)
font.setPixelSize(32)
self.header_line.setPen(style.foreground_color)
self.cursor.setBrush(style.midcolor)
self.cursor.setPen(QPen(Qt.NoPen))
for widget in self.weekdays:
widget.setFont(font)
widget.setBrush(style.foreground_color)
for widget in self.days:
widget.setFont(font)
widget.setBrush(self.style.foreground_color)
self.layout()
def layout(self):
cell_width = (self.rect.width()) / 7.0
cell_height = (self.rect.height() - 64) / 7.0
x = self.rect.left()
y = self.rect.top()
fm = QFontMetrics(self.header.font())
rect = fm.boundingRect(self.header.text())
self.header.setPos(x + self.rect.width() / 2 - rect.width() / 2,
y)
y += fm.height()
for row, day in enumerate(self.weekdays):
fm = QFontMetrics(day.font())
rect = fm.boundingRect(day.text())
day.setPos(x + row * cell_width + cell_width / 2 - rect.width() / 2,
y)
y += fm.height()
self.header_line.setLine(x, y,
x + self.rect.width() - 3, y)
y += 8
for n, widget in enumerate(self.days):
col = n % 7
row = n // 7
rect = fm.boundingRect(widget.text())
widget.setPos(x + col * cell_width + cell_width / 2 - rect.width() / 2,
y + row * cell_height + cell_height / 2 - fm.height() / 2)
# if day.month != self.now.month:
# widget.setBrush(self.style.midcolor)
# else:
if self.cursor_pos is not None:
self.cursor.setRect(x + self.cursor_pos[0] * cell_width,
y + self.cursor_pos[1] * cell_height,
cell_width,
cell_height)
self.cursor.show()
else:
self.cursor.hide()
def update(self, now):
self.model.update(now)
# update header
self.header.setText(
date(self.model.year, self.model.month, 1).strftime("%B %Y"))
# calculate the date of the top/left calendar entry
current_date = date(self.model.year, self.model.month, 1)
current_date = current_date - timedelta(current_date.weekday())
self.cursor_pos = None
for n, widget in enumerate(self.days):
col = n % 7
row = n // 7
if current_date == self.model.today:
self.cursor_pos = (col, row)
widget.setText("%d" % current_date.day)
self.days[n] = widget
current_date += timedelta(days=1)
self.layout()
class PreXoverItemGroup(QGraphicsEllipseItem):
"""Summary
Attributes:
active_wedge_gizmo (TYPE): Description
fwd_prexover_items (dict): Description
HUE_FACTOR (float): Description
id_num (TYPE): Description
is_active (TYPE): Description
model_part (Part): The model part
rev_prexover_items (dict): Description
SPIRAL_FACTOR (float): Description
virtual_helix_item (VirtualHelixItem): Description
"""
HUE_FACTOR = 1.6
SPIRAL_FACTOR = 0.4
def __init__(self, radius, rect, virtual_helix_item, is_active):
"""Summary
Args:
radius (TYPE): Description
rect (TYPE): Description
virtual_helix_item (VirtualHelixItem): Description
is_active (TYPE): Description
"""
super(PreXoverItemGroup, self).__init__(rect, virtual_helix_item)
self._radius = radius
self._rect = rect
self.virtual_helix_item = virtual_helix_item
self.model_part = virtual_helix_item.part()
self.id_num = virtual_helix_item.idNum()
self.is_active = is_active
self.active_wedge_gizmo = WedgeGizmo(radius, rect, self)
self.fwd_prexover_items = fwd_pxis = {}
self.rev_prexover_items = rev_pxis = {}
self._colors = self._getColors()
self.addItems()
self.setPen(getNoPen())
z = styles.ZPXIGROUP + 10 if is_active else styles.ZPXIGROUP
self.setZValue(z)
self.setTransformOriginPoint(rect.center())
bpr, tpr, eulerZ = virtual_helix_item.getProperty(
['bases_per_repeat', 'turns_per_repeat', 'eulerZ'])
self.setRotation(-eulerZ) # add 180
# for baseNearestPoint
fwd_pos, rev_pos = [], []
step_size = self.virtual_helix_item.getProperty('bases_per_repeat')
for i in range(int(step_size)):
fwd_pos.append(
(fwd_pxis[i].scenePos().x(), fwd_pxis[i].scenePos().y()))
rev_pos.append(
(rev_pxis[i].scenePos().x(), rev_pxis[i].scenePos().y()))
self.fwd_pos_array = np.asarray(fwd_pos)
self.rev_pos_array = np.asarray(rev_pos)
self.baseNearLine = QGraphicsLineItem(self)
self.baseNearLine.setPen(
getPenObj("#000000", 0.25, capstyle=Qt.RoundCap))
# end def
# def mousePressEvent(self, event):
# print("PreXoverGroup press")
# def mouseMoveEvent(self, event):
# print("PreXoverGroup move")
# def mouseReleaseEvent(self, event):
# print("PreXoverGroup release")
### ACCESSORS ###
def partItem(self):
"""Summary
Returns:
TYPE: Description
"""
return self.virtual_helix_item.partItem()
# end def
def getItem(self, is_fwd, step_idx):
"""Summary
Args:
is_fwd (TYPE): Description
step_idx (int): the base index within the virtual helix
Returns:
TYPE: Description
"""
items = self.fwd_prexover_items if is_fwd else self.rev_prexover_items
if step_idx in items:
return items[step_idx]
else:
return None
# end def
def getItemIdx(self, is_fwd, idx):
"""Summary
Args:
is_fwd (TYPE): Description
idx (int): the base index within the virtual helix
Returns:
TYPE: Description
"""
step_size = self.virtual_helix_item.getProperty('bases_per_repeat')
return self.getItem(is_fwd, idx % step_size)
# end def
### EVENT HANDLERS ###
### PRIVATE SUPPORT METHODS ###
def _getColors(self):
"""Summary
Returns:
TYPE: Description
"""
step_size = int(
self.virtual_helix_item.getProperty('bases_per_repeat'))
hue_scale = step_size * self.HUE_FACTOR
return [
QColor.fromHsvF(i / hue_scale, 0.75, 0.8).name()
for i in range(step_size)
]
# end def
### PUBLIC SUPPORT METHODS ###
def addItems(self):
"""Summary
"""
radius = self._radius
step_size, bases_per_turn, tpb, mgroove = self.virtual_helix_item.getAngularProperties(
)
# print("TPB", tpb, step_size)
iw = PXI_PP_ITEM_WIDTH
spiral_factor = self.SPIRAL_FACTOR
colors = self._colors
ctr = self.mapToParent(self._rect).boundingRect().center()
x = ctr.x() + radius - PXI_PP_ITEM_WIDTH
y = ctr.y()
# tpb = -tpb
# Qt +angle is Clockwise (CW), model +angle is CCW
mgroove = -mgroove
fwd_pxis = self.fwd_prexover_items
rev_pxis = self.rev_prexover_items
for i in range(int(step_size)):
inset = i * spiral_factor # spiral layout
fwd = PreXoverItem(i, tpb, step_size, colors[i], self, is_fwd=True)
rev = PreXoverItem(i,
tpb,
step_size,
colors[-1 - i],
self,
is_fwd=False)
fwd.setPos(x - inset, y)
rev.setPos(x - inset, y)
fwd.setTransformOriginPoint((-radius + iw + inset), 0)
rev.setTransformOriginPoint((-radius + iw + inset), 0)
fwd.setRotation(round(i * tpb % 360, 3))
rev.setRotation(round((i * tpb + mgroove) % 360, 3))
fwd.setBondLineLength(inset + iw)
rev.setBondLineLength(inset + iw)
fwd_pxis[i] = fwd
rev_pxis[i] = rev
for i in range(int(step_size) - 1):
fwd, next_fwd = fwd_pxis[i], fwd_pxis[i + 1]
j = (step_size - 1) - i
rev, next_rev = rev_pxis[j], rev_pxis[j - 1]
fwd.set3pItem(next_fwd)
rev.set3pItem(next_rev)
next_fwd.set5pItem(fwd)
next_rev.set5pItem(rev)
# end def
def baseNearestPoint(self, is_fwd, scene_pos):
"""Summary
Args:
is_fwd (bool): used to check fwd or rev lists.
scene_pos (QPointF): scene coordinate position
Returns:
PreXoverItem: base nearest to position
"""
pos_array = self.fwd_pos_array if is_fwd else self.rev_pos_array
dist_2 = np.sum((pos_array - (scene_pos.x(), scene_pos.y()))**2,
axis=1)
near_idx = np.argmin(dist_2)
near_pxi = self.fwd_prexover_items[
near_idx] if is_fwd else self.rev_prexover_items[near_idx]
# Draw a line
p1 = self.mapFromScene(scene_pos.x(), scene_pos.y())
p2 = self.mapFromScene(near_pxi.scenePos())
line = QLineF(p1, p2)
self.baseNearLine.setLine(line)
def destroyItem(self):
"""Summary
"""
fpxis = self.fwd_prexover_items
rpxis = self.rev_prexover_items
scene = self.scene()
for i in range(len(fpxis)):
x = fpxis.pop(i)
x.destroyItem()
x = rpxis.pop(i)
x.destroyItem()
self.virtual_helix_item = None
self.model_part = None
scene.removeItem(self.active_wedge_gizmo)
self.active_wedge_gizmo = None
scene.removeItem(self)
# end def
def updateTurnsPerRepeat(self):
"""Summary
"""
step_size, bases_per_turn, tpb, mgroove = self.virtual_helix_item.getAngularProperties(
)
mgroove = -mgroove
fpxis = self.fwd_prexover_items
rpxis = self.rev_prexover_items
for i in range(int(step_size)):
fwd = self.fwd_prexover_items[i]
rev = self.rev_prexover_items[i]
fwd.setRotation(round((i * tpb) % 360, 3))
rev.setRotation(round((i * tpb + mgroove) % 360, 3))
for i in range(int(step_size) - 1):
fwd, next_fwd = fpxis[i], fpxis[i + 1]
j = (step_size - 1) - i
rev, next_rev = rpxis[j], rpxis[j - 1]
fwd.set3pItem(next_fwd)
rev.set3pItem(next_rev)
next_fwd.set5pItem(fwd)
next_rev.set5pItem(rev)
# end def
def partCrossoverSpanAngle(self):
"""
Returns:
int: Crossover span angle from Part.
"""
return self.virtual_helix_item.partCrossoverSpanAngle()
def updateModelActiveBaseInfo(self, pre_xover_info):
"""Notify model of pre_xover_item hover state.
"""
self.model_part.setActiveBaseInfo(pre_xover_info)
class ImageViewer(QGraphicsView, QObject):
def __init__(self, parent=None):
super(ImageViewer, self).__init__(parent)
self.setRenderHints(QPainter.Antialiasing
| QPainter.SmoothPixmapTransform)
#self.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
self.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
self.setDragMode(QGraphicsView.ScrollHandDrag)
#self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
#self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
self._scene = ImageViewerScene(self)
self.setScene(self._scene)
self._create_grid()
self._create_grid_lines()
self._pixmap = None
self._selection_mode = SELECTION_MODE.NONE
# polygon selection
_polygon_guide_line_pen = QPen(QtGui.QColor(235, 72, 40))
_polygon_guide_line_pen.setWidth(2)
_polygon_guide_line_pen.setStyle(QtCore.Qt.DotLine)
self._polygon_guide_line = QGraphicsLineItem()
self._polygon_guide_line.setVisible(False)
self._polygon_guide_line.setPen(_polygon_guide_line_pen)
self._scene.addItem(self._polygon_guide_line)
self._current_polygon = None
# rectangle selection
self._box_origin = QPoint()
self._box_picker = QRubberBand(QRubberBand.Rectangle, self)
# free selection
self._current_free_path = None
self._is_drawing = False
self._last_point_drawn = QPoint()
self._current_label = None
@property
def current_label(self):
return self._current_label
@current_label.setter
def current_label(self, value):
self._current_label = value
@property
def pixmap(self) -> ImagePixmap:
return self._pixmap
@pixmap.setter
def pixmap(self, value: QPixmap):
self.selection_mode = SELECTION_MODE.NONE
self.resetTransform()
if self.pixmap:
self._scene.removeItem(self._pixmap)
self.remove_annotations()
self._pixmap = ImagePixmap()
self._pixmap.setPixmap(value)
self._pixmap.setOffset(-value.width() / 2, -value.height() / 2)
self._pixmap.setTransformationMode(QtCore.Qt.SmoothTransformation)
self._pixmap.signals.hoverEnterEventSgn.connect(
self.pixmap_hoverEnterEvent_slot)
self._pixmap.signals.hoverLeaveEventSgn.connect(
self.pixmap_hoverLeaveEvent_slot)
self._pixmap.signals.hoverMoveEventSgn.connect(
self.pixmap_hoverMoveEvent_slot)
self._scene.addItem(self._pixmap)
# rect=self._scene.addRect(QtCore.QRectF(0,0,100,100), QtGui.QPen(QtGui.QColor("red")))
# rect.setZValue(1.0)
self.fit_to_window()
@property
def selection_mode(self):
return self._selection_mode
@selection_mode.setter
def selection_mode(self, value):
self._polygon_guide_line.hide()
self._current_polygon = None
self._current_free_path = None
self._is_drawing = value == SELECTION_MODE.FREE
if value == SELECTION_MODE.NONE:
self.enable_items(True)
else:
self.enable_items(False)
self._selection_mode = value
def remove_annotations(self):
for item in self._scene.items():
if isinstance(item, EditableBox):
self._scene.removeItem(item)
elif isinstance(item, EditablePolygon):
item.delete_polygon()
def remove_annotations_by_label(self, label_name):
for item in self._scene.items():
if isinstance(item, EditableBox):
if item.label and item.label.name == label_name:
self._scene.removeItem(item)
elif isinstance(item, EditablePolygon):
if item.label and item.label.name == label_name:
item.delete_polygon()
def enable_items(self, value):
for item in self._scene.items():
if isinstance(item, EditablePolygon) or isinstance(
item, EditableBox):
item.setEnabled(value)
def _create_grid(self):
gridSize = 15
backgroundPixmap = QtGui.QPixmap(gridSize * 2, gridSize * 2)
#backgroundPixmap.fill(QtGui.QColor("white"))
backgroundPixmap.fill(QtGui.QColor(20, 20, 20))
#backgroundPixmap.fill(QtGui.QColor("powderblue"))
painter = QtGui.QPainter(backgroundPixmap)
#backgroundColor=QtGui.QColor("palegoldenrod")
#backgroundColor=QtGui.QColor(237,237,237)
backgroundColor = QtGui.QColor(0, 0, 0)
painter.fillRect(0, 0, gridSize, gridSize, backgroundColor)
painter.fillRect(gridSize, gridSize, gridSize, gridSize,
backgroundColor)
painter.end()
self._scene.setBackgroundBrush(QtGui.QBrush(backgroundPixmap))
def _create_grid_lines(self):
pen_color = QColor(255, 255, 255, 255)
pen = QPen(pen_color)
pen.setWidth(2)
pen.setStyle(QtCore.Qt.DotLine)
self.vline = QGraphicsLineItem()
self.vline.setVisible(False)
self.vline.setPen(pen)
self.hline = QGraphicsLineItem()
self.hline.setVisible(False)
self.hline.setPen(pen)
self._scene.addItem(self.vline)
self._scene.addItem(self.hline)
def wheelEvent(self, event: QWheelEvent):
adj = (event.angleDelta().y() / 120) * 0.1
self.scale(1 + adj, 1 + adj)
def fit_to_window(self):
"""Fit image within view."""
if not self.pixmap or not self._pixmap.pixmap():
return
#self._pixmap.setTransformationMode(QtCore.Qt.SmoothTransformation)
self.fitInView(self._pixmap, QtCore.Qt.KeepAspectRatio)
def show_guide_lines(self):
if self.hline and self.vline:
self.hline.show()
self.vline.show()
def hide_guide_lines(self):
if self.hline and self.vline:
self.hline.hide()
self.vline.hide()
def pixmap_hoverEnterEvent_slot(self):
self.show_guide_lines()
def pixmap_hoverLeaveEvent_slot(self):
self.hide_guide_lines()
def pixmap_hoverMoveEvent_slot(self, evt: QGraphicsSceneHoverEvent, x, y):
bbox: QRect = self._pixmap.boundingRect()
offset = QPointF(bbox.width() / 2, bbox.height() / 2)
self.vline.setLine(x, -offset.y(), x, bbox.height() - offset.y())
self.vline.setZValue(1)
self.hline.setLine(-offset.x(), y, bbox.width() - offset.x(), y)
self.hline.setZValue(1)
def mouseMoveEvent(self, evt: QtGui.QMouseEvent) -> None:
if self.selection_mode == SELECTION_MODE.BOX:
if not self._box_origin.isNull():
self._box_picker.setGeometry(
QRect(self._box_origin, evt.pos()).normalized())
elif self.selection_mode == SELECTION_MODE.POLYGON:
if self._current_polygon:
if self._current_polygon.count > 0:
last_point: QPointF = self._current_polygon.last_point
self._polygon_guide_line.setZValue(1)
self._polygon_guide_line.show()
mouse_pos = self.mapToScene(evt.pos())
self._polygon_guide_line.setLine(last_point.x(),
last_point.y(),
mouse_pos.x(),
mouse_pos.y())
else:
self._polygon_guide_line.hide()
elif self.selection_mode == SELECTION_MODE.FREE and evt.buttons(
) and QtCore.Qt.LeftButton:
if self._current_free_path:
painter: QPainterPath = self._current_free_path.path()
self._last_point_drawn = self.mapToScene(evt.pos())
painter.lineTo(self._last_point_drawn)
self._current_free_path.setPath(painter)
super(ImageViewer, self).mouseMoveEvent(evt)
def mousePressEvent(self, evt: QtGui.QMouseEvent) -> None:
if evt.buttons() == QtCore.Qt.LeftButton:
if self.selection_mode == SELECTION_MODE.BOX:
self.setDragMode(QGraphicsView.NoDrag)
self._box_origin = evt.pos()
self._box_picker.setGeometry(QRect(self._box_origin, QSize()))
self._box_picker.show()
elif self._selection_mode == SELECTION_MODE.POLYGON:
pixmap_rect: QRectF = self._pixmap.boundingRect()
new_point = self.mapToScene(evt.pos())
# consider only the points intothe image
if pixmap_rect.contains(new_point):
if self._current_polygon is None:
self._current_polygon = EditablePolygon()
self._current_polygon.signals.deleted.connect(
self.delete_polygon_slot)
self._scene.addItem(self._current_polygon)
self._current_polygon.addPoint(new_point)
else:
self._current_polygon.addPoint(new_point)
elif self._selection_mode == SELECTION_MODE.FREE:
# start drawing
new_point = self.mapToScene(evt.pos())
pixmap_rect: QRectF = self._pixmap.boundingRect()
# consider only the points intothe image
if pixmap_rect.contains(new_point):
self.setDragMode(QGraphicsView.NoDrag)
pen = QPen(QtGui.QColor(235, 72, 40))
pen.setWidth(10)
self._last_point_drawn = new_point
self._current_free_path = QGraphicsPathItem()
self._current_free_path.setOpacity(0.6)
self._current_free_path.setPen(pen)
painter = QPainterPath()
painter.moveTo(self._last_point_drawn)
self._current_free_path.setPath(painter)
self._scene.addItem(self._current_free_path)
else:
self.setDragMode(QGraphicsView.ScrollHandDrag)
super(ImageViewer, self).mousePressEvent(evt)
def mouseReleaseEvent(self, evt: QtGui.QMouseEvent) -> None:
if evt.button() == QtCore.Qt.LeftButton:
if self.selection_mode == SELECTION_MODE.BOX:
roi: QRect = self._box_picker.geometry()
roi: QRectF = self.mapToScene(roi).boundingRect()
pixmap_rect = self._pixmap.boundingRect()
self._box_picker.hide()
if pixmap_rect == roi.united(pixmap_rect):
rect = EditableBox(roi)
rect.label = self.current_label
self._scene.addItem(rect)
self.selection_mode = SELECTION_MODE.NONE
self.setDragMode(QGraphicsView.ScrollHandDrag)
elif self.selection_mode == SELECTION_MODE.FREE and self._current_free_path:
# create polygon
self._current_free_path: QGraphicsPathItem
path_rect = self._current_free_path.boundingRect()
pixmap_rect = self._pixmap.boundingRect()
if pixmap_rect == path_rect.united(pixmap_rect):
path = self._current_free_path.path()
path_polygon = EditablePolygon()
path_polygon.label = self.current_label
self._scene.addItem(path_polygon)
for i in range(0, path.elementCount(), 10):
x, y = path.elementAt(i).x, path.elementAt(i).y
path_polygon.addPoint(QPointF(x, y))
self._scene.removeItem(self._current_free_path)
self.selection_mode = SELECTION_MODE.NONE
self.setDragMode(QGraphicsView.ScrollHandDrag)
super(ImageViewer, self).mouseReleaseEvent(evt)
def keyPressEvent(self, event: QtGui.QKeyEvent) -> None:
if self._current_polygon and event.key() == QtCore.Qt.Key_Space:
points = self._current_polygon.points
self._current_polygon.label = self.current_label
self._current_polygon = None
self.selection_mode = SELECTION_MODE.NONE
self._polygon_guide_line.hide()
self.setDragMode(QGraphicsView.ScrollHandDrag)
super(ImageViewer, self).keyPressEvent(event)
def delete_polygon_slot(self, polygon: EditablePolygon):
self._current_polygon = None
self.selection_mode = SELECTION_MODE.NONE
self._polygon_guide_line.hide()
class DiagramScene(QGraphicsScene):
InsertItem, InsertLine, InsertText, MoveItem = range(4)
itemInserted = pyqtSignal(DiagramItem)
textInserted = pyqtSignal(QGraphicsTextItem)
itemSelected = pyqtSignal(QGraphicsItem)
def __init__(self, itemMenu, parent=None):
super(DiagramScene, self).__init__(parent)
self.myItemMenu = itemMenu
self.myMode = self.MoveItem
self.myItemType = DiagramItem.Step
self.line = None
self.textItem = None
self.myItemColor = Qt.white
self.myTextColor = Qt.black
self.myLineColor = Qt.black
self.myFont = QFont()
def setLineColor(self, color):
self.myLineColor = color
if self.isItemChange(Arrow):
item = self.selectedItems()[0]
item.setColor(self.myLineColor)
self.update()
def setTextColor(self, color):
self.myTextColor = color
if self.isItemChange(DiagramTextItem):
item = self.selectedItems()[0]
item.setDefaultTextColor(self.myTextColor)
def setItemColor(self, color):
self.myItemColor = color
if self.isItemChange(DiagramItem):
item = self.selectedItems()[0]
item.setBrush(self.myItemColor)
def setFont(self, font):
self.myFont = font
if self.isItemChange(DiagramTextItem):
item = self.selectedItems()[0]
item.setFont(self.myFont)
def setMode(self, mode):
self.myMode = mode
def setItemType(self, type):
self.myItemType = type
def editorLostFocus(self, item):
cursor = item.textCursor()
cursor.clearSelection()
item.setTextCursor(cursor)
if item.toPlainText()=='':
self.removeItem(item)
item.deleteLater()
def mousePressEvent(self, mouseEvent):
if (mouseEvent.button() != Qt.LeftButton):
return
if self.myMode == self.InsertItem:
item = DiagramItem(self.myItemType, self.myItemMenu)
item.setBrush(self.myItemColor)
self.addItem(item)
item.setPos(mouseEvent.scenePos())
self.itemInserted.emit(item)
elif self.myMode == self.InsertLine:
self.line = QGraphicsLineItem(QLineF(mouseEvent.scenePos(),
mouseEvent.scenePos()))
self.line.setPen(QPen(self.myLineColor, 2))
self.addItem(self.line)
elif self.myMode == self.InsertText:
textItem = DiagramTextItem()
textItem.setFont(self.myFont)
textItem.setTextInteractionFlags(Qt.TextEditorInteraction)
textItem.setZValue(1000.0)
textItem.lostFocus.connect(self.editorLostFocus)
textItem.selectedChange.connect(self.itemSelected)
self.addItem(textItem)
textItem.setDefaultTextColor(self.myTextColor)
textItem.setPos(mouseEvent.scenePos())
self.textInserted.emit(textItem)
super(DiagramScene, self).mousePressEvent(mouseEvent)
def mouseMoveEvent(self, mouseEvent):
if self.myMode == self.InsertLine and self.line:
newLine = QLineF(self.line.line().p1(), mouseEvent.scenePos())
self.line.setLine(newLine)
elif self.myMode == self.MoveItem:
super(DiagramScene, self).mouseMoveEvent(mouseEvent)
def mouseReleaseEvent(self, mouseEvent):
if self.line and self.myMode == self.InsertLine:
startItems = self.items(self.line.line().p1())
if len(startItems) and startItems[0] == self.line:
startItems.pop(0)
endItems = self.items(self.line.line().p2())
if len(endItems) and endItems[0] == self.line:
endItems.pop(0)
self.removeItem(self.line)
self.line = None
if len(startItems) and len(endItems) and \
isinstance(startItems[0], DiagramItem) and \
isinstance(endItems[0], DiagramItem) and \
startItems[0] != endItems[0]:
startItem = startItems[0]
endItem = endItems[0]
arrow = Arrow(startItem, endItem)
arrow.setColor(self.myLineColor)
startItem.addArrow(arrow)
endItem.addArrow(arrow)
arrow.setZValue(-1000.0)
self.addItem(arrow)
arrow.updatePosition()
self.line = None
super(DiagramScene, self).mouseReleaseEvent(mouseEvent)
def isItemChange(self, type):
for item in self.selectedItems():
if isinstance(item, type):
return True
return False
class StickWidget(QGraphicsObject):
font: QFont = QFont("monospace", 32)
delete_clicked = pyqtSignal(Stick)
link_initiated = pyqtSignal('PyQt_PyObject') # Actually StickWidget
link_accepted = pyqtSignal('PyQt_PyObject')
hovered = pyqtSignal(['PyQt_PyObject', 'PyQt_PyObject'])
stick_changed = pyqtSignal('PyQt_PyObject')
sibling_changed = pyqtSignal(bool)
right_clicked = pyqtSignal('PyQt_PyObject')
handle_idle_brush = QBrush(QColor(0, 125, 125, 50))
handle_hover_brush = QBrush(QColor(125, 125, 0, 50))
handle_press_brush = QBrush(QColor(200, 200, 0, 0))
handle_idle_pen = QPen(QColor(0, 0, 0, 255))
handle_press_pen = QPen(QColor(200, 200, 0, 255))
handle_size = 20
normal_color = QColor(0, 200, 120)
negative_color = QColor(200, 0, 0)
positive_color = QColor(0, 200, 0)
mismatched = pyqtSignal('PyQt_PyObject')
misplaced = pyqtSignal('PyQt_PyObject')
measurement_corrected = pyqtSignal('PyQt_PyObject')
clearly_visible = pyqtSignal('PyQt_PyObject')
zero_clicked = pyqtSignal('PyQt_PyObject')
def __init__(self, stick: Stick, camera: Camera, parent: Optional[QGraphicsItem] = None):
QGraphicsObject.__init__(self, parent)
self.camera = camera
self.stick = stick
self.line = QLineF()
self.gline = QGraphicsLineItem(self.line)
self.stick_label_text = QGraphicsSimpleTextItem("0", self)
self.stick_label_text.setFont(StickWidget.font)
self.stick_label_text.setPos(self.line.p1() - QPoint(0, 24))
self.stick_label_text.setBrush(QBrush(QColor(0, 255, 0)))
self.stick_label_text.hide()
self.setZValue(10)
self.mode = StickMode.Display
self.btn_delete = Button("delete", "x", parent=self)
self.btn_delete.setFlag(QGraphicsItem.ItemIgnoresTransformations, True)
self.btn_delete.set_base_color([ButtonColor.RED])
self.btn_delete.setVisible(False)
btn_size = max(int(np.linalg.norm(self.stick.top - self.stick.bottom) / 5.0), 15)
self.btn_delete.set_height(12)
self.btn_delete.clicked.connect(self.handle_btn_delete_clicked)
self.btn_delete.setPos(self.line.p1() - QPointF(0.5 * self.btn_delete.boundingRect().width(), 1.1 * self.btn_delete.boundingRect().height()))
self.btn_delete.set_opacity(0.7)
self.top_handle = QGraphicsEllipseItem(0, 0, self.handle_size, self.handle_size, self)
self.mid_handle = QGraphicsEllipseItem(0, 0, self.handle_size, self.handle_size, self)
self.bottom_handle = QGraphicsEllipseItem(0, 0, self.handle_size, self.handle_size, self)
self.top_handle.setAcceptedMouseButtons(Qt.NoButton)
self.mid_handle.setAcceptedMouseButtons(Qt.NoButton)
self.bottom_handle.setAcceptedMouseButtons(Qt.NoButton)
self.top_handle.setBrush(self.handle_idle_brush)
self.top_handle.setPen(self.handle_idle_pen)
self.mid_handle.setBrush(self.handle_idle_brush)
self.mid_handle.setPen(self.handle_idle_pen)
self.bottom_handle.setBrush(self.handle_idle_brush)
self.bottom_handle.setPen(self.handle_idle_pen)
self.hovered_handle: Optional[QGraphicsRectItem] = None
self.handles = [self.top_handle, self.mid_handle, self.bottom_handle]
self.link_button = Button("link", "Link to...", parent=self)
self.link_button.set_base_color([ButtonColor.GREEN])
self.link_button.set_height(12)
self.link_button.set_label("Link", direction="vertical")
self.link_button.fit_to_contents()
self.link_button.clicked.connect(lambda: self.link_initiated.emit(self))
self.link_button.setVisible(False)
self.link_button.setFlag(QGraphicsObject.ItemIgnoresTransformations, False)
self.adjust_line()
self.setAcceptHoverEvents(True)
self.top_handle.setZValue(4)
self.bottom_handle.setZValue(4)
self.mid_handle.setZValue(4)
self.top_handle.hide()
self.mid_handle.hide()
self.bottom_handle.hide()
self.handle_mouse_offset = QPointF(0, 0)
self.available_for_linking = False
self.link_source = False
self.current_highlight_color: QColor = StickWidget.normal_color
self.highlighted = False
self.frame_color: Optional[None] = self.normal_color
self.is_linked = False
self.is_master = True
self.selected = False
self.measured_height: int = -1
self.current_color = self.normal_color
self.show_label = False
self.highlight_animation = QPropertyAnimation(self, b"highlight_color")
self.highlight_animation.valueChanged.connect(self.handle_highlight_animation_value_changed)
self.deleting = False
self.update_tooltip()
self.show_measurements: bool = False
self.proposed_snow_height: int = -1
self.zero_btn = Button("zero_btn", "0", parent=self)
self.zero_btn.setFlag(QGraphicsItem.ItemIgnoresTransformations, True)
self.zero_btn.setVisible(False)
self.zero_btn.setPos(self.boundingRect().center() + QPointF(self.zero_btn.boundingRect().width() * -0.5,
self.boundingRect().height() * 0.5))
self.zero_btn.clicked.connect(self.handle_zero)
@pyqtSlot()
def handle_btn_delete_clicked(self):
self.delete_clicked.emit(self.stick)
def prepare_for_deleting(self):
self.deleting = True
self.highlight_animation.stop()
self.btn_delete.setParentItem(None)
self.scene().removeItem(self.btn_delete)
self.btn_delete.deleteLater()
def paint(self, painter: QPainter, option: QStyleOptionGraphicsItem,
widget: Optional[PyQt5.QtWidgets.QWidget] = ...):
painter.setPen(QPen(self.current_color, 1.0))
brush = QBrush(self.current_highlight_color)
pen = QPen(brush, 4)
painter.setPen(pen)
if self.highlighted:
painter.fillRect(self.boundingRect(), QBrush(self.current_highlight_color))
if self.frame_color is not None and self.mode != StickMode.Edit and self.mode != StickMode.EditDelete:
painter.setPen(QPen(self.frame_color, 4))
painter.drawRect(self.boundingRect())
pen = QPen(QColor(0, 255, 0, 255))
pen.setWidth(1.0)
pen.setColor(QColor(255, 0, 255, 255))
pen.setStyle(Qt.DotLine)
painter.setPen(pen)
off = 10
painter.drawLine(self.line.p1() - QPointF(0, off), self.line.p1() + QPointF(0, off))
painter.drawLine(self.line.p1() - QPointF(off, 0), self.line.p1() + QPointF(off, 0))
painter.drawLine(self.line.p2() - QPointF(0, off), self.line.p2() + QPointF(0, off))
painter.drawLine(self.line.p2() - QPointF(off, 0), self.line.p2() + QPointF(off, 0))
pen.setStyle(Qt.SolidLine)
pen.setColor(QColor(0, 255, 0, 255))
painter.setPen(pen)
if self.mode != StickMode.EditDelete:
pen.setWidth(2.0)
br = painter.brush()
painter.setPen(pen)
painter.drawEllipse(self.line.p1(), 10, 10)
painter.drawEllipse(self.line.p2(), 10, 10)
painter.setBrush(br)
if self.mode == StickMode.Measurement and self.proposed_snow_height >= 0:
point = QPointF(self.boundingRect().x(), -self.proposed_snow_height + self.line.p2().y())
pen = QPen(QColor(200, 100, 0, 255), 3.0)
painter.setPen(pen)
painter.drawLine(point,
point + QPointF(self.boundingRect().width(), 0.0))
if self.measured_height >= 0:
vec = (self.stick.top - self.stick.bottom) / np.linalg.norm(self.stick.top - self.stick.bottom)
dist_along_stick = self.measured_height / np.dot(np.array([0.0, -1.0]), vec)
point = self.line.p2() + dist_along_stick * QPointF(vec[0], vec[1])
point = QPointF(self.boundingRect().x(), point.y())
pen = QPen(QColor(0, 100, 200, 255), 3.0)
painter.setPen(pen)
painter.drawLine(point,
point + QPointF(self.boundingRect().width(), 0.0))
else:
painter.drawLine(self.line.p1(), self.line.p2())
if self.selected:
pen.setColor(QColor(255, 125, 0, 255))
pen.setStyle(Qt.DashLine)
painter.setPen(pen)
painter.drawRect(self.boundingRect().marginsAdded(QMarginsF(5, 5, 5, 5)))
if self.show_measurements:
painter.fillRect(self.stick_label_text.boundingRect().translated(self.stick_label_text.pos()),
QBrush(QColor(0, 0, 0, 120)))
def boundingRect(self) -> PyQt5.QtCore.QRectF:
return self.gline.boundingRect().united(self.top_handle.boundingRect()).\
united(self.mid_handle.boundingRect()).united(self.bottom_handle.boundingRect())
def set_edit_mode(self, value: bool):
if value:
self.set_mode(StickMode.EditDelete)
else:
self.set_mode(StickMode.Display)
def set_mode(self, mode: StickMode):
if mode == StickMode.Display:
self.btn_delete.setVisible(False)
self.top_handle.setVisible(False)
self.mid_handle.setVisible(False)
self.bottom_handle.setVisible(False)
self.link_button.setVisible(False)
self.available_for_linking = False
self.link_source = False
self.zero_btn.setVisible(False)
self.setVisible(self.stick.is_visible)
elif mode == StickMode.EditDelete:
self.set_mode(StickMode.Display)
self.top_handle.setVisible(True)
self.mid_handle.setVisible(True)
self.bottom_handle.setVisible(True)
self.available_for_linking = False
self.link_source = False
self.btn_delete.setVisible(True)
elif mode == StickMode.LinkSource:
self.set_mode(StickMode.Display)
self.link_source = True
self.available_for_linking = False
self.link_button.setPos(self.boundingRect().topLeft())
self.link_button.set_width(int(self.boundingRect().width()))
self.link_button.set_button_height(int(self.boundingRect().height()))
self.link_button.adjust_text_to_button()
elif mode == StickMode.LinkTarget:
self.set_mode(StickMode.Display)
self.link_source = False
self.available_for_linking = True
elif mode == StickMode.Edit:
self.set_mode(StickMode.EditDelete)
self.btn_delete.setVisible(False)
elif mode == StickMode.Measurement:
self.zero_btn.setVisible(True)
self.setVisible(True)
self.mode = mode
self.update_tooltip()
self.update()
def mousePressEvent(self, event: QGraphicsSceneMouseEvent):
if self.mode != StickMode.EditDelete:
return
if self.hovered_handle is None:
return
self.hovered_handle.setBrush(self.handle_press_brush)
if self.hovered_handle == self.mid_handle:
self.bottom_handle.setBrush(self.handle_press_brush)
self.bottom_handle.setPen(self.handle_press_pen)
self.bottom_handle.setOpacity(0.5)
self.top_handle.setBrush(self.handle_press_brush)
self.top_handle.setPen(self.handle_press_pen)
self.top_handle.setOpacity(0.5)
self.hovered_handle.setPen(self.handle_press_pen)
self.hovered_handle.setOpacity(0.5)
self.handle_mouse_offset = self.hovered_handle.rect().center() - event.pos()
self.btn_delete.setVisible(False)
def mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent):
if self.available_for_linking:
self.link_accepted.emit(self)
return
if self.mode == StickMode.Measurement:
old_snow = self.stick.snow_height_px
self.measured_height = self.proposed_snow_height
self.stick.set_snow_height_px(self.proposed_snow_height)
if abs(old_snow - self.proposed_snow_height) > 0:
self.measurement_corrected.emit(self)
self.proposed_snow_height = -1
if self.mode != StickMode.EditDelete and self.mode != StickMode.Edit:
return
if self.hovered_handle is not None:
self.hovered_handle.setBrush(self.handle_hover_brush)
self.hovered_handle.setPen(self.handle_idle_pen)
self.hovered_handle.setOpacity(1.0)
if self.hovered_handle == self.mid_handle:
self.bottom_handle.setBrush(self.handle_idle_brush)
self.bottom_handle.setPen(self.handle_idle_pen)
self.bottom_handle.setOpacity(1.0)
self.top_handle.setBrush(self.handle_idle_brush)
self.top_handle.setPen(self.handle_idle_pen)
self.top_handle.setOpacity(1.0)
self.stick_changed.emit(self)
self.hovered_handle = None
if self.mode == StickMode.EditDelete:
self.btn_delete.setVisible(True)
def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent):
if self.hovered_handle is None:
return
if self.hovered_handle == self.top_handle:
self.line.setP1((event.pos() + self.handle_mouse_offset).toPoint())
elif self.hovered_handle == self.bottom_handle:
self.line.setP2((event.pos() + self.handle_mouse_offset).toPoint())
else:
displacement = event.pos() - event.lastPos()
self.setPos(self.pos() + displacement)
self.adjust_handles()
self.adjust_stick()
self.scene().update()
def set_top(self, pos: QPoint):
self.line.setP1(pos)
self.adjust_handles()
self.adjust_stick()
self.scene().update()
def set_bottom(self, pos: QPoint):
self.line.setP2(pos)
self.adjust_handles()
self.adjust_stick()
self.scene().update()
def hoverEnterEvent(self, event: QGraphicsSceneHoverEvent):
if self.available_for_linking:
self.hovered.emit(True, self)
elif self.link_source:
self.link_button.setVisible(True)
self.scene().update()
def hoverLeaveEvent(self, event: QGraphicsSceneHoverEvent):
for h in self.handles:
h.setBrush(self.handle_idle_brush)
self.hovered_handle = None
if self.available_for_linking:
self.hovered.emit(False, self)
self.link_button.setVisible(False)
self.proposed_snow_height = -1
self.scene().update()
def hoverMoveEvent(self, event: QGraphicsSceneHoverEvent):
if self.mode != StickMode.EditDelete and self.mode != StickMode.Edit and self.mode != StickMode.Measurement:
return
if self.mode == StickMode.Measurement:
self.proposed_snow_height = max(self.line.p2().y() - event.pos().y(), 0)
self.update()
return
hovered_handle = list(filter(lambda h: h.rect().contains(event.pos()), self.handles))
if len(hovered_handle) == 0:
if self.hovered_handle is not None:
self.hovered_handle.setBrush(self.handle_idle_brush)
self.hovered_handle = None
return
if self.hovered_handle is not None and self.hovered_handle != hovered_handle[0]:
self.hovered_handle.setBrush(self.handle_idle_brush)
self.hovered_handle = hovered_handle[0]
if self.hovered_handle == self.top_handle:
self.top_handle.setBrush(self.handle_hover_brush)
elif self.hovered_handle == self.bottom_handle:
self.bottom_handle.setBrush(self.handle_hover_brush)
else:
self.mid_handle.setBrush(self.handle_hover_brush)
self.scene().update()
def adjust_stick(self):
self.stick.top[0] = self.pos().x() + self.line.p1().x()
self.stick.top[1] = self.pos().y() + self.line.p1().y()
self.stick.bottom[0] = self.pos().x() + self.line.p2().x()
self.stick.bottom[1] = self.pos().y() + self.line.p2().y()
def adjust_handles(self):
if self.line.p1().y() > self.line.p2().y():
p1, p2 = self.line.p1(), self.line.p2()
self.line.setP1(p2)
self.line.setP2(p1)
if self.hovered_handle is not None:
self.hovered_handle.setBrush(self.handle_idle_brush)
self.hovered_handle.setPen(self.handle_idle_pen)
self.hovered_handle = self.top_handle if self.hovered_handle == self.bottom_handle else self.bottom_handle
self.hovered_handle.setBrush(self.handle_press_brush)
self.hovered_handle.setPen(self.handle_press_pen)
rect = self.top_handle.rect()
rect.moveCenter(self.line.p1())
self.top_handle.setRect(rect)
rect = self.bottom_handle.rect()
rect.moveCenter(self.line.p2())
self.bottom_handle.setRect(rect)
rect = self.mid_handle.rect()
rect.moveCenter(self.line.center())
self.mid_handle.setRect(rect)
self.btn_delete.setPos(self.top_handle.rect().center() - QPointF(self.btn_delete.boundingRect().width() / 2,
self.btn_delete.boundingRect().height() + self.top_handle.boundingRect().height() / 2))
def set_available_for_linking(self, available: bool):
self.available_for_linking = available
def set_is_link_source(self, is_source: bool):
self.link_source = is_source
self.link_button.setPos(self.boundingRect().topLeft())
self.link_button.set_width(int(self.boundingRect().width()))
self.link_button.set_button_height(int(self.boundingRect().height()))
self.link_button.adjust_text_to_button()
def set_frame_color(self, color: Optional[QColor]):
self.frame_color = color if color is not None else self.normal_color
self.update()
def set_is_linked(self, value: bool):
self.is_linked = value
if not self.is_linked:
self.set_frame_color(None)
if self.available_for_linking:
self.highlight(QColor(0, 255, 0, 100))
else:
self.highlight(None)
self.update_tooltip()
def adjust_line(self):
self.setPos(QPointF(0.5 * (self.stick.top[0] + self.stick.bottom[0]), 0.5 * (self.stick.top[1] + self.stick.bottom[1])))
vec = 0.5 * (self.stick.top - self.stick.bottom)
self.line.setP1(QPointF(vec[0], vec[1]))
self.line.setP2(-self.line.p1())
self.gline.setLine(self.line)
self.adjust_handles()
self.stick_label_text.setPos(self.line.p1() - QPointF(0.5 * self.stick_label_text.boundingRect().width(),
1.3 * self.stick_label_text.boundingRect().height()))
self.update()
def set_selected(self, selected: bool):
self.selected = selected
self.update()
def is_selected(self) -> bool:
return self.selected
def set_snow_height(self, height: int):
self.measured_height = height
self.update()
def border_normal(self):
self.current_color = self.normal_color
self.update()
def border_positive(self):
self.current_color = self.positive_color
self.update()
def border_negative(self):
self.current_color = self.negative_color
self.update()
@pyqtProperty(QColor)
def highlight_color(self) -> QColor:
return self.current_highlight_color
@highlight_color.setter
def highlight_color(self, color: QColor):
self.current_highlight_color = color
def highlight(self, color: Optional[QColor], animated: bool = False):
self.highlighted = color is not None
if not animated or color is None:
self.highlight_animation.stop()
self.current_highlight_color = self.normal_color if color is None else color
self.update()
return
self.highlight_animation.setStartValue(color)
self.highlight_animation.setEndValue(color)
self.highlight_animation.setKeyValueAt(0.5, color.darker())
self.highlight_animation.setDuration(2000)
self.highlight_animation.setLoopCount(-1)
self.highlight_animation.start()
def handle_link_button_hovered(self, btn: Dict[str, Any]):
self.link_button.setVisible(btn['hovered'])
def handle_highlight_animation_value_changed(self, new: QColor):
if not self.deleting:
self.update(self.boundingRect().marginsAdded(QMarginsF(10, 10, 10, 10)))
def contextMenuEvent(self, event: QGraphicsSceneContextMenuEvent) -> None:
self.right_clicked.emit({'stick_widget': self})
def set_stick_label(self, label: str):
self.stick.label = label
self.stick_label_text.setText(label)
self.update_tooltip()
self.update()
def get_stick_label(self) -> str:
return self.stick.label
def get_stick_length_cm(self) -> int:
return self.stick.length_cm
def set_stick_length_cm(self, length: int):
self.stick.length_cm = length
self.update_tooltip()
self.update()
def update_tooltip(self):
if self.mode != StickMode.Display or self.mode == StickMode.Measurement:
self.setToolTip("")
return
snow_txt = "Snow height: "
if self.stick.snow_height_px >= 0:
snow_txt += str(self.stick.snow_height_cm) + " cm"
self.stick_label_text.setText(str(self.stick.snow_height_cm))
else:
snow_txt = "not measured"
self.stick_label_text.setVisible(False)
self.stick_label_text.setText(self.stick.label)
self.stick_label_text.setVisible(True)
stick_view_text = ''
role = ''
if self.stick.alternative_view is not None:
alt_view = self.stick.alternative_view
role = " - primary"
alt = "Secondary"
if not self.stick.primary:
role = " - secondary"
alt = "Primary"
stick_view_text = f'\n{alt} view: {alt_view.label} in {alt_view.camera_folder.name}\n'
mark = '*' if self.stick.determines_quality else ''
self.setToolTip(f'{mark}{self.stick.label}{role}{stick_view_text}\nLength: {self.stick.length_cm} cm\n{snow_txt}')
def set_stick(self, stick: Stick):
self.reset_d_btns()
self.stick = stick
self.adjust_line()
self.adjust_handles()
self.set_snow_height(stick.snow_height_px)
self.update_tooltip()
self.set_show_measurements(self.show_measurements)
if self.mode == StickMode.Measurement:
self.set_frame_color(QColor(200, 100, 0, 100) if not self.stick.is_visible else None)
self.setVisible(True)
self.clearly_visible_btn.setVisible(not self.stick.is_visible)
else:
self.setVisible(self.stick.is_visible)
def set_show_measurements(self, show: bool):
self.show_measurements = show
if self.show_measurements:
self.stick_label_text.setText(str(self.stick.snow_height_cm) if self.stick.snow_height_cm >= 0 else
"n/a")
else:
self.stick_label_text.setText(self.stick.label)
self.update()
def handle_zero(self):
self.measured_height = 0
self.stick.set_snow_height_px(0)
self.measurement_corrected.emit(self)
def reset_d_btns(self):
self.zero_btn.set_default_state()
class TransitionGraphicsItem(QGraphicsObject):
# constant values
SQUARE_SIDE = 10
ARROW_SIZE = 12
PEN_NORMAL_WIDTH = 1
PEN_FOCUS_WIDTH = 3
posChanged = pyqtSignal('QGraphicsItem')
def __init__(self, data):
super(QGraphicsObject, self).__init__()
self.transitionData = data
self.originLine = None
self.destinationLine = None
self.arrow = None
self.textGraphics = None
self.middleHandle = None
self.graphicsOrigin = self.transitionData.origin.getGraphicsItem()
self.graphicsDestination = self.transitionData.destination.getGraphicsItem()
# connect position changed event
self.graphicsOrigin.posChanged.connect(self.statePosChanged)
self.graphicsDestination.posChanged.connect(self.statePosChanged)
self.midPointX = (self.graphicsDestination.scenePos().x() + self.graphicsOrigin.scenePos().x()) / 2.0
self.midPointY = (self.graphicsDestination.scenePos().y() + self.graphicsOrigin.scenePos().y()) / 2.0
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createMiddleHandle()
self.createIdTextBox()
def statePosChanged(self, state):
if self.graphicsOrigin == state:
self.createOriginLine()
elif self.graphicsDestination == state:
self.createDestinationLine()
self.createArrow()
def createOriginLine(self):
if self.originLine == None:
self.originLine = QGraphicsLineItem(self.midPointX, self.midPointY, self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y(), self)
else:
self.originLine.setLine(QLineF(self.midPointX, self.midPointY, self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y()))
myLine = self.originLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.originLine.setLine(myLine)
def createDestinationLine(self):
if self.destinationLine == None:
self.destinationLine = QGraphicsLineItem(self.midPointX, self.midPointY, self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y(), self)
else:
self.destinationLine.setLine(QLineF(self.midPointX, self.midPointY, self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y()))
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.destinationLine.setLine(myLine)
def createArrow(self):
# add an arrow to destination line
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - TransitionGraphicsItem.ARROW_SIZE)
rotatePoint = myLine.p2() - self.destinationLine.line().p2()
rightPointX = rotatePoint.x() * math.cos(math.pi / 6) - rotatePoint.y() * math.sin(math.pi / 6)
rightPointY = rotatePoint.x() * math.sin(math.pi / 6) + rotatePoint.y() * math.cos(math.pi / 6)
rightPoint = QPointF(rightPointX + self.destinationLine.line().x2(),
rightPointY + self.destinationLine.line().y2())
leftPointX = rotatePoint.x() * math.cos(-math.pi / 6) - rotatePoint.y() * math.sin(-math.pi / 6)
leftPointY = rotatePoint.x() * math.sin(-math.pi / 6) + rotatePoint.y() * math.cos(-math.pi / 6)
leftPoint = QPointF(leftPointX + self.destinationLine.line().x2(),
leftPointY + self.destinationLine.line().y2())
polygon = QPolygonF()
polygon << rightPoint << leftPoint << self.destinationLine.line().p2() << rightPoint
if self.arrow == None:
self.arrow = QGraphicsPolygonItem(polygon, self)
else:
self.arrow.setPolygon(polygon)
brush = QBrush(Qt.SolidPattern)
brush.setColor(Qt.black)
self.arrow.setBrush(brush)
def createMiddleHandle(self):
# create middle handle
if self.middleHandle == None:
self.middleHandle = RectHandleGraphicsItem(TransitionGraphicsItem.SQUARE_SIDE, self)
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable)
self.middleHandle.setPos(self.midPointX, self.midPointY)
def createIdTextBox(self):
if self.textGraphics == None:
self.textGraphics = IdTextBoxGraphicsItem(self.transitionData.name, self)
self.textGraphics.textChanged.connect(self.nameChanged)
else:
self.textGraphics.setPlainText(self.transitionData.name)
textWidth = self.textGraphics.boundingRect().width()
self.textGraphics.setPos(self.midPointX - textWidth / 2, self.midPointY + TransitionGraphicsItem.SQUARE_SIDE -
(TransitionGraphicsItem.SQUARE_SIDE / 2) + 5)
def updateMiddlePoints(self, newPosition):
self.midPointX = newPosition.x()
self.midPointY = newPosition.y()
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createIdTextBox()
self.posChanged.emit(self)
def nameChanged(self, name):
self.transitionData.name = name
self.createIdTextBox()
def boundingRect(self):
if self.middleHandle != None:
return self.middleHandle.boundingRect()
else:
return None
def disableInteraction(self):
if self.middleHandle is not None:
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable, False)
self.middleHandle.disableInteraction()
class AnalogClock(Desklet):
def __init__(self):
super().__init__()
self.center_x = 0
self.center_y = 0
self.radius = 1
self.now = datetime.utcfromtimestamp(0)
# build the clock face
self.circle = QGraphicsEllipseItem(self.root)
self.lines = []
for _ in range(0, 60):
self.lines.append(QGraphicsLineItem(self.root))
self.hours_hand = QGraphicsLineItem(self.root)
self.minutes_hand = QGraphicsLineItem(self.root)
self.seconds_hand = QGraphicsLineItem(self.root)
self.hand_circle = QGraphicsEllipseItem(self.root)
def set_style(self, style):
super().set_style(style)
# minute
pen = QPen(self.style.foreground_color)
pen.setWidth(12)
pen.setCapStyle(Qt.RoundCap)
self.minutes_hand.setPen(pen)
# hour
pen = QPen(self.style.foreground_color)
pen.setWidth(16)
pen.setCapStyle(Qt.RoundCap)
self.hours_hand.setPen(pen)
# second
pen = QPen(self.style.midcolor)
pen.setWidth(4)
pen.setCapStyle(Qt.RoundCap)
self.seconds_hand.setPen(pen)
# outer circle
pen = QPen(self.style.foreground_color)
pen.setWidth(6)
self.circle.setPen(pen)
# inner circle
self.hand_circle.setBrush(QBrush(self.style.background_color))
# minute lines
pen = QPen()
pen.setCapStyle(Qt.RoundCap)
pen.setColor(self.style.midcolor)
pen.setWidth(4)
bold_pen = QPen()
bold_pen.setCapStyle(Qt.RoundCap)
bold_pen.setColor(self.style.foreground_color)
bold_pen.setWidth(6)
for i, line in enumerate(self.lines):
if i % 5 == 0:
line.setPen(bold_pen)
else:
line.setPen(pen)
self.layout()
def set_rect(self, rect):
super().set_rect(rect)
self.layout()
def layout(self):
self.center_x = self.rect.left() + self.rect.width() / 2.0
self.center_y = self.rect.top() + self.rect.height() / 2.0
self.radius = min(self.rect.width(), self.rect.height()) / 2.0 - 3.0
self.circle.setRect(self.center_x - self.radius,
self.center_y - self.radius,
2 * self.radius,
2 * self.radius)
self.hand_circle.setRect(self.center_x - 5,
self.center_y - 5,
10, 10)
for i, line in enumerate(self.lines):
angle = i * 2.0 * math.pi / 60.0
if i % 5 == 0:
line.setLine(self.center_x + math.cos(angle) * self.radius * 0.85,
self.center_y + math.sin(angle) * self.radius * 0.85,
self.center_x + math.cos(angle) * self.radius * 0.95,
self.center_y + math.sin(angle) * self.radius * 0.95)
else:
line.setLine(self.center_x + math.cos(angle) * self.radius * 0.90,
self.center_y + math.sin(angle) * self.radius * 0.90,
self.center_x + math.cos(angle) * self.radius * 0.95,
self.center_y + math.sin(angle) * self.radius * 0.95)
self.update(self.now)
def update(self, now):
self.now = now
hour = (self.now.hour / 12.0 + self.now.minute / 60.0 / 12.0) * 2.0 * math.pi - math.pi / 2.0
minute = (self.now.minute / 60.0 + self.now.second / 60.0 / 60.0) * 2.0 * math.pi - math.pi / 2.0
second = (self.now.second / 60.0) * 2.0 * math.pi - math.pi / 2.0
self.set_seconds(second)
self.set_minutes(minute)
self.set_hours(hour)
def set_seconds(self, n):
self.seconds_hand.setLine(
self.center_x + math.cos(n) * self.radius * 0.0,
self.center_y + math.sin(n) * self.radius * 0.0,
self.center_x + math.cos(n) * self.radius * 0.8,
self.center_y + math.sin(n) * self.radius * 0.8)
def set_minutes(self, n):
self.minutes_hand.setLine(
self.center_x + math.cos(n) * self.radius * 0.0,
self.center_y + math.sin(n) * self.radius * 0.0,
self.center_x + math.cos(n) * self.radius * 0.8,
self.center_y + math.sin(n) * self.radius * 0.8)
def set_hours(self, n):
self.hours_hand.setLine(
self.center_x + math.cos(n) * self.radius * 0.0,
self.center_y + math.sin(n) * self.radius * 0.0,
self.center_x + math.cos(n) * self.radius * 0.45,
self.center_y + math.sin(n) * self.radius * 0.45)