Highlight search results in qtablewidget(select an

I use method1 to find some text in qtablewidget rows. method1 :

def FindItem(self):
    items = self.SuraBRS.findItems(
        self.SearchTbox.text(), QtCore.Qt.MatchContains)
    if items:
        results = '\n'.join(
            'row %d column %d' % (item.row() + 1, item.column() + 1)
            for item in items)
    else:
        results = 'Found Nothing'
    print(results)

Now I want to know how to highlight results or change their color.I want to select and highlight that text or character not all of the row or column.

To be able to change only a part of the text you must use an HTMLdelegate that I built in this other answer, but it must be modified to avoid changing the html that can be the information and not the text that is desired:

from PyQt5 import QtCore, QtGui, QtWidgets

import random

try:
    from html import escape
except ImportError:
    from cgi import escape

words = [
    "Hello",
    "world",
    "Stack",
    "Overflow",
    "Hello world",
    """<font color="red">Hello world</font>""",
]


class HTMLDelegate(QtWidgets.QStyledItemDelegate):
    def __init__(self, parent=None):
        super(HTMLDelegate, self).__init__(parent)
        self.doc = QtGui.QTextDocument(self)

    def paint(self, painter, option, index):
        substring = index.data(QtCore.Qt.UserRole)
        painter.save()
        options = QtWidgets.QStyleOptionViewItem(option)
        self.initStyleOption(options, index)
        res = ""
        color = QtGui.QColor("orange")
        if substring:
            substrings = options.text.split(substring)
            res = """<font color="{}">{}</font>""".format(
                color.name(QtGui.QColor.HexRgb), substring
            ).join(list(map(escape, substrings)))
        else:
            res = escape(options.text)
        self.doc.setHtml(res)

        options.text = ""
        style = (
            QtWidgets.QApplication.style()
            if options.widget is None
            else options.widget.style()
        )
        style.drawControl(QtWidgets.QStyle.CE_ItemViewItem, options, painter)

        ctx = QtGui.QAbstractTextDocumentLayout.PaintContext()
        if option.state & QtWidgets.QStyle.State_Selected:
            ctx.palette.setColor(
                QtGui.QPalette.Text,
                option.palette.color(
                    QtGui.QPalette.Active, QtGui.QPalette.HighlightedText
                ),
            )
        else:
            ctx.palette.setColor(
                QtGui.QPalette.Text,
                option.palette.color(QtGui.QPalette.Active, QtGui.QPalette.Text),
            )

        textRect = style.subElementRect(QtWidgets.QStyle.SE_ItemViewItemText, options)

        if index.column() != 0:
            textRect.adjust(5, 0, 0, 0)

        thefuckyourshitup_constant = 4
        margin = (option.rect.height() - options.fontMetrics.height()) // 2
        margin = margin - thefuckyourshitup_constant
        textRect.setTop(textRect.top() + margin)

        painter.translate(textRect.topLeft())
        painter.setClipRect(textRect.translated(-textRect.topLeft()))
        self.doc.documentLayout().draw(painter, ctx)

        painter.restore()

    def sizeHint(self, option, index):
        return QSize(self.doc.idealWidth(), self.doc.size().height())


class Widget(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(Widget, self).__init__(parent)
        hlay = QtWidgets.QHBoxLayout()
        lay = QtWidgets.QVBoxLayout(self)

        self.le = QtWidgets.QLineEdit()
        self.button = QtWidgets.QPushButton("filter")
        self.table = QtWidgets.QTableWidget(5, 5)
        hlay.addWidget(self.le)
        hlay.addWidget(self.button)
        lay.addLayout(hlay)
        lay.addWidget(self.table)
        self.button.clicked.connect(self.find_items)
        self.table.setItemDelegate(HTMLDelegate(self.table))

        for i in range(self.table.rowCount()):
            for j in range(self.table.columnCount()):
                it = QtWidgets.QTableWidgetItem(random.choice(words))
                self.table.setItem(i, j, it)

    def find_items(self):
        text = self.le.text()
        # clear
        allitems = self.table.findItems("", QtCore.Qt.MatchContains)
        selected_items = self.table.findItems(self.le.text(), QtCore.Qt.MatchContains)
        for item in allitems:
            item.setData(QtCore.Qt.UserRole, text if item in selected_items else None)


if __name__ == "__main__":
    import sys

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

PyQt4:

from PyQt4 import QtCore, QtGui
import random

try:
    from html import escape
except ImportError:
    from cgi import escape

words = [
    "Hello",
    "world",
    "Stack",
    "Overflow",
    "Hello world",
    """<font color="red">Hello world</font>""",
]


class HTMLDelegate(QtGui.QStyledItemDelegate):
    def __init__(self, parent=None):
        super(HTMLDelegate, self).__init__(parent)
        self.doc = QtGui.QTextDocument(self)

    def paint(self, painter, option, index):
        substring = index.data(QtCore.Qt.UserRole)
        if hasattr(substring, "toPyObject"):
            substring = str(substring.toPyObject())
        painter.save()
        options = QtGui.QStyleOptionViewItem(option)
        self.initStyleOption(options, index)
        text = index.data()
        if hasattr(text, "toPyObject"):
            text = str(text.toPyObject())
        res = ""
        color = QtGui.QColor("orange")
        if substring:
            substrings = text.split(substring)
            res = """<font color="{}">{}</font>""".format(color.name(), substring).join(
                list(map(escape, substrings))
            )
        else:
            res = escape(text)
        self.doc.setHtml(res)

        options.text = ""
        style = (
            QtGui.QApplication.style()
            # if options.widget is None
            # else options.widget.style()
        )
        style.drawControl(QtGui.QStyle.CE_ItemViewItem, options, painter)

        ctx = QtGui.QAbstractTextDocumentLayout.PaintContext()
        if option.state & QtGui.QStyle.State_Selected:
            ctx.palette.setColor(
                QtGui.QPalette.Text,
                option.palette.color(
                    QtGui.QPalette.Active, QtGui.QPalette.HighlightedText
                ),
            )
        else:
            ctx.palette.setColor(
                QtGui.QPalette.Text,
                option.palette.color(QtGui.QPalette.Active, QtGui.QPalette.Text),
            )

        textRect = (
            options.rect
        )  # style.subElementRect(QtGui.QStyle.SE_ItemViewItemText, options)

        if index.column() != 0:
            textRect.adjust(5, 0, 0, 0)

        thefuckyourshitup_constant = 4
        margin = (option.rect.height() - options.fontMetrics.height()) // 2
        margin = margin - thefuckyourshitup_constant
        textRect.setTop(textRect.top() + margin)

        painter.translate(textRect.topLeft())
        painter.setClipRect(textRect.translated(-textRect.topLeft()))
        self.doc.documentLayout().draw(painter, ctx)

        painter.restore()

    def sizeHint(self, option, index):
        return QSize(self.doc.idealWidth(), self.doc.size().height())


class Widget(QtGui.QWidget):
    def __init__(self, parent=None):
        super(Widget, self).__init__(parent)
        hlay = QtGui.QHBoxLayout()
        lay = QtGui.QVBoxLayout(self)

        self.le = QtGui.QLineEdit()
        self.button = QtGui.QPushButton("filter")
        self.table = QtGui.QTableWidget(5, 5)
        hlay.addWidget(self.le)
        hlay.addWidget(self.button)
        lay.addLayout(hlay)
        lay.addWidget(self.table)
        self.button.clicked.connect(self.find_items)
        self.table.setItemDelegate(HTMLDelegate(self.table))

        for i in range(self.table.rowCount()):
            for j in range(self.table.columnCount()):
                it = QtGui.QTableWidgetItem(random.choice(words))
                self.table.setItem(i, j, it)

    def find_items(self):
        text = self.le.text()
        # clear
        allitems = self.table.findItems("", QtCore.Qt.MatchContains)
        selected_items = self.table.findItems(self.le.text(), QtCore.Qt.MatchContains)
        for item in allitems:
            item.setData(QtCore.Qt.UserRole, text if item in selected_items else None)


if __name__ == "__main__":
    import sys

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