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from PyQt5.QtCore import Qt, QSize, QRect, QPoint, QAbstractTableModel, pyqtSignal, QModelIndex
from PyQt5.QtGui import QBrush, QPen, QColor, QCursor
from PyQt5.QtWidgets import QTableView, QMenu, QGraphicsRectItem, QInputDialog, QStyledItemDelegate, QHeaderView
from collections import defaultdict
class streamTableModel(QAbstractTableModel):
updateEvent = pyqtSignal()
def __init__(self, parent, list, header, *args):
super(streamTableModel, self).__init__(parent, *args)
self.list = list
self.header = header
def columnCount(self, parent=None):
return len(self.list)
def rowCount(self, parent=None):
return len(self.header)
def data(self, index, role):
if role == Qt.TextAlignmentRole:
return Qt.AlignHCenter
if role == Qt.BackgroundColorRole:
return Qt.white
if not index.isValid():
return None
elif role != Qt.DisplayRole:
return None
if index.row() == 0:
return self.list[index.column()].toPlainText()
else:
return self.list[index.column()].values[self.header[index.row()]]
def setData(self, index, value, role):
if not index.isValid():
return False
elif role != Qt.EditRole:
return False
if index.row() == 0:
self.list[index.column()].setPlainText(value)
else:
self.list[index.column()].values[self.header[index.row()]] = value
return True
def insertColumn(self, int=None, item=None):
int = int if int else self.rowCount()+1
self.beginInsertColumns(QModelIndex(), int, int)
self.list.insert(int, item)
self.endInsertColumns()
self.updateEvent.emit()
def insertRow(self, int=None, name="newVal"):
self.beginInsertRows(QModelIndex(), int, int)
self.header.insert(int, name)
self.endInsertRows()
self.updateEvent.emit()
def deleteRow(self, row):
self.beginRemoveRows(QModelIndex(), row, row)
valName = self.header.pop(row)
self.endRemoveRows()
for i in self.list:
i.values.pop(valName)
self.updateEvent.emit()
def headerData(self, col, orientation, role):
if orientation == Qt.Vertical and role == Qt.DisplayRole:
return self.header[col]
return None
def flags(self, index):
return (super(streamTableModel, self).flags(index) | Qt.ItemIsEditable)
class streamTable(QTableView):
def __init__(self, itemLabels=[], canvas=None, parent=None):
super(streamTable, self).__init__(parent=parent)
self.canvas = canvas
for i in itemLabels:
i.nameChanged.connect(self.repaint)
header = ["name", "val1", "val2", "val3", "val4", "val5"]
self.model = streamTableModel(self, itemLabels, header)
self.setShowGrid(False)
self.horizontalHeader().hide()
header = verticalHeader(Qt.Vertical, self)
self.setVerticalHeader(header)
header.labelChangeRequested.connect(self.labelChange)
self.setModel(self.model)
self.borderThickness = defaultdict(lambda: False)
self.model.updateEvent.connect(self.resizeHandler)
self.setItemDelegateForRow(0, drawBorderDelegate(self))
def mousePressEvent(self, event):
if event.button() == Qt.RightButton:
point = event.pos()
# col = self.getCol(point.x())
index = self.indexAt(point)
menu = QMenu("Context Menu", self)
menu.addAction("Toggle bottom border thickness", lambda x=index.row(): self.changeRowBorder(x))
menu.addAction("Insert Row to bottom", lambda x=index.row(): self.insertRowBottom(x))
menu.addAction("Delete row", lambda x=index.row(): self.model.deleteRow(x))
menu.exec_(self.mapToGlobal(point)+ QPoint(20, 25))
event.accept()
return super(streamTable, self).mousePressEvent(event)
def changeRowBorder(self, row):
if self.borderThickness[row]:
self.borderThickness[row] = False
self.setItemDelegateForRow(row, QStyledItemDelegate(self))
else:
self.borderThickness[row] = True
self.setItemDelegateForRow(row, drawBorderDelegate(self))
def labelChange(self, index):
newName, bool = QInputDialog.getText(self, "Change Property Name", "Enter new name",
text = self.model.header[index])
if bool:
for i in self.model.list:
i.values[newName] = i.values.pop(self.model.header[index])
self.model.header[index] = newName
self.repaint()
def insertRowBottom(self, row):
name, bool = QInputDialog.getText(self, "New Property", "Enter name",
text = "newVal")
if bool:
self.model.insertRow(row + 1, name)
self.repaint()
def resizeHandler(self):
self.resize(self.sizeHint())
def sizeHint(self):
return self.rect().size()
def rect(self):
w = self.verticalHeader().width() + 4
for i in range(self.model.columnCount()):
w += self.columnWidth(i)
h = 0
for i in range(self.model.rowCount()):
h += self.rowHeight(i)
return QRect(0, 0, w, h)
class drawBorderDelegate(QStyledItemDelegate):
# def __init__(self, parent):
# super(drawBorderDelegate, self).__init__(parent)
def paint(self, painter, option, index):
rect = option.rect
painter.drawLine(rect.bottomLeft(), rect.bottomRight())
painter.setPen(QPen(Qt.black, 1, Qt.SolidLine))
super(drawBorderDelegate, self).paint(painter, option, index)
class moveRect(QGraphicsRectItem):
def __init__(self, sideLength = 15, *args):
super(moveRect, self).__init__(-sideLength, -sideLength, sideLength, sideLength)
self.setBrush(Qt.transparent)
self.setPen(QPen(Qt.transparent))
self.setCursor(QCursor(Qt.SizeAllCursor))
self.setAcceptHoverEvents(True)
def hoverEnterEvent(self, event):
self.setBrush(QBrush(QColor(0, 0, 0, 120)))
return super(moveRect, self).hoverEnterEvent(event)
def hoverLeaveEvent(self, event):
self.setBrush(QBrush(QColor(0, 0, 0, 0)))
return super(moveRect, self).hoverLeaveEvent(event)
class verticalHeader(QHeaderView):
labelChangeRequested = pyqtSignal(int)
def mouseDoubleClickEvent(self, event):
index = self.logicalIndexAt(event.pos())
self.labelChangeRequested.emit(index)
return super().mouseDoubleClickEvent(event)
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