CODEWITHSUNDEEP
pythonpython-3.xpyqtpyqt5qtablewidget
Carlos Alberto
Carlos Alberto

Reputation: 23

Highlight Cell in a QTableWidget PyQt5

I have a pyqt5 QTableWidget and i want to highight a specific cell of the table

For example I give row 2 and column 2, and I want that cell to be highlighted to edit,i mean for the element in blue

My Table

def createTable(self):
   # Create table
    self.tableWidget = QTableWidget()
    self.tableWidget.setRowCount(4096)
    self.tableWidget.setColumnCount(16)
    horizantalLabels = []
    verticalLabels = []
    for i in range(16):
        horizantalLabels.append(funciones.tohex(i,8))
    for i in range(4096):
        verticalLabels.append(funciones.tohex(i*16,16))
    self.tableWidget.setHorizontalHeaderLabels(horizantalLabels)
    self.tableWidget.setVerticalHeaderLabels(verticalLabels)
    # table selection change6
    for i in range(4096):
        for j in range(16):
            self.tableWidget.setItem(i, j, QTableWidgetItem("00"))
            self.tableWidget.setColumnWidth(j, 29)

    self.tableWidget.setItemDelegate(HexDelegate())
    self.tableWidget.cellChanged.connect(self.changed)

def goToPosition(self):
    position = self.goTo.text()
    self.tableWidget.scrollToBottom()
    #print(position)
    lenght = len(position)
    if lenght > 3:
        position_Row = position[:3]
        position_Column = position[3:]
        print(position_Row)
        print(position_Column)
        position_Row = int(position_Row, 16)
        position_Column = int(position_Column,16)
        print("row " + str(position_Row))
        positionCell = self.tableWidget.item(position_Row, position_Column)
        self.tableWidget.scrollToItem(positionCell)

in the method, go to position i want to highlight the cell

Upvotes: 1

Views: 5772

Answers (2)

Vladimir Morozoff
Vladimir Morozoff

Reputation: 33

I found using the setItemSelected() method to be more convenient, if you need to highlight a single cell: all you have to do is pass in the item and set the boolean (no need for QTableWidgetSelectionRange and the coords).

Upvotes: 0

eyllanesc
eyllanesc

Reputation: 243897

If you want to select items from a QTableWidget you must use the setRangeSelected method, this requires that the range of the selection, in your case would be the respective row and column, then I show an example:

class Widget(QWidget):
    def __init__(self, *args, **kwargs):
        QWidget.__init__(self, *args, **kwargs)
        hlayout = QHBoxLayout()
        self.rbox = QSpinBox(self)
        self.cbox = QSpinBox(self)
        hlayout.addWidget(self.rbox)
        hlayout.addWidget(self.cbox)
        vlayout = QVBoxLayout(self)
        vlayout.addLayout(hlayout)

        nrows = 5
        ncols = 5
        self.rbox.setMaximum(nrows-1)
        self.cbox.setMaximum(ncols-1)

        self.table = QTableWidget(nrows, ncols, self)
        vlayout.addWidget(self.table)
        for r in range(nrows):
            for c in range(nrows):
                it = QTableWidgetItem("{}-{}".format(r, c))
                self.table.setItem(r, c, it)

        self.rbox.valueChanged.connect(self.selectItem)
        self.cbox.valueChanged.connect(self.selectItem)
        self.selectItem()

    def selectItem(self):
        self.table.clearSelection()
        x = self.rbox.value()
        y = self.cbox.value()
        self.table.setRangeSelected(QTableWidgetSelectionRange(x, y, x, y), True)

if __name__ == '__main__':
    import sys

    app = QApplication(sys.argv)
    w = Widget()
    w.show()
    sys.exit(app.exec_())

Upvotes: 4

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