如何从搜索列表中突出显示 QTableWidget 中的单词
How to highlight a words in QTableWidget from a Searchlist
我想通过单词列表搜索 QTableWidget-Table，如果找到它们，我希望它们被蜜蜂突出显示。
我试图修改 中的代码，因此 table 正在通过一个单词列表进行搜索，而不仅仅是一个单词。不幸的是，我的结果不断被覆盖。我总是只得到列表中最后一个单词的结果。
有谁知道如何修改代码以显示整个单词列表的结果？
代码如下：
from PyQt5 import QtCore, QtGui, QtWidgets
import random
import html
words_1 = ["Hello dseerfd", "world sdfsdf sdfgsdf sdfsdf", "Stack dasdf", "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("red")
if substring:
substrings = options.text.split(substring)
res = """<font color="{}">{}</font>""".format(color.name(QtGui.QColor.HexRgb), substring).join(list(map(html.escape, substrings)))
else:
res = html.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)
the_constant = 4
margin = (option.rect.height() - options.fontMetrics.height()) // 2
margin = margin - the_constant
textRect.setTop(textRect.top() + margin)
painter.translate(textRect.topLeft())
painter.setClipRect(textRect.translated(-textRect.topLeft()))
self.doc.documentLayout().draw(painter, ctx)
painter.restore()
class Widget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Widget, self).__init__(parent)
hlay = QtWidgets.QHBoxLayout()
lay = QtWidgets.QVBoxLayout(self)
self.table = QtWidgets.QTableWidget(5, 5)
lay.addLayout(hlay)
lay.addWidget(self.table)
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_1))
self.table.setItem(i, j, it)
text_list = ['ello', 'ack']
# clear
allitems = self.table.findItems("", QtCore.Qt.MatchContains)
selected_items =[]
for words in text_list:
for item in allitems:
selected_items = self.table.findItems(words, QtCore.Qt.MatchContains)
selected_items.append(self.table.findItems(words, QtCore.Qt.MatchContains)) ## i tried to make a list which is beeing appened but using this list it returns only the same as the input
item.setData(QtCore.Qt.UserRole, words 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_())
在前面的案例中，我想过滤案例，以免不必要地进行绘制，但在这种情况下，因为它更复杂，我决定使用 QTextCharFormat 而不是 [=17] 来实现突出显示逻辑=] 如下所示：
from PyQt5 import QtCore, QtGui, QtWidgets
import random
words = ["Hello dseerfd", "world sdfsdf sdfgsdf sdfsdf", "Stack dasdf", "Overflow", "Hello world", """<font color="red">Hello world</font>"""]
class HighlightDelegate(QtWidgets.QStyledItemDelegate):
def __init__(self, parent=None):
super(HighlightDelegate, self).__init__(parent)
self.doc = QtGui.QTextDocument(self)
self._filters = []
def paint(self, painter, option, index):
painter.save()
options = QtWidgets.QStyleOptionViewItem(option)
self.initStyleOption(options, index)
self.doc.setPlainText(options.text)
self.apply_highlight()
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)
the_constant = 4
margin = (option.rect.height() - options.fontMetrics.height()) // 2
margin = margin - the_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 apply_highlight(self):
cursor = QtGui.QTextCursor(self.doc)
cursor.beginEditBlock()
fmt = QtGui.QTextCharFormat()
fmt.setForeground(QtCore.Qt.red)
for f in self.filters():
highlightCursor = QtGui.QTextCursor(self.doc)
while not highlightCursor.isNull() and not highlightCursor.atEnd():
highlightCursor = self.doc.find(f, highlightCursor)
if not highlightCursor.isNull():
highlightCursor.mergeCharFormat(fmt)
cursor.endEditBlock()
@QtCore.pyqtSlot(list)
def setFilters(self, filters):
if self._filters == filters: return
self._filters = filters
def filters(self):
return self._filters
class Widget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Widget, self).__init__(parent)
self.table = QtWidgets.QTableWidget(30, 6)
self._delegate = HighlightDelegate(self.table)
self.table.setItemDelegate(self._delegate)
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)
self.table.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.ResizeToContents)
le = QtWidgets.QLineEdit()
le.textChanged.connect(self.on_textChanged)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(le)
lay.addWidget(self.table)
le.setText("ello ack")
@QtCore.pyqtSlot(str)
def on_textChanged(self, text):
self._delegate.setFilters(list(set(text.split())))
self.table.viewport().update()
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
w = Widget()
w.showMaximized()
sys.exit(app.exec_())
我想通过单词列表搜索 QTableWidget-Table，如果找到它们，我希望它们被蜜蜂突出显示。
我试图修改
有谁知道如何修改代码以显示整个单词列表的结果？
代码如下：
from PyQt5 import QtCore, QtGui, QtWidgets
import random
import html
words_1 = ["Hello dseerfd", "world sdfsdf sdfgsdf sdfsdf", "Stack dasdf", "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("red")
if substring:
substrings = options.text.split(substring)
res = """<font color="{}">{}</font>""".format(color.name(QtGui.QColor.HexRgb), substring).join(list(map(html.escape, substrings)))
else:
res = html.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)
the_constant = 4
margin = (option.rect.height() - options.fontMetrics.height()) // 2
margin = margin - the_constant
textRect.setTop(textRect.top() + margin)
painter.translate(textRect.topLeft())
painter.setClipRect(textRect.translated(-textRect.topLeft()))
self.doc.documentLayout().draw(painter, ctx)
painter.restore()
class Widget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Widget, self).__init__(parent)
hlay = QtWidgets.QHBoxLayout()
lay = QtWidgets.QVBoxLayout(self)
self.table = QtWidgets.QTableWidget(5, 5)
lay.addLayout(hlay)
lay.addWidget(self.table)
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_1))
self.table.setItem(i, j, it)
text_list = ['ello', 'ack']
# clear
allitems = self.table.findItems("", QtCore.Qt.MatchContains)
selected_items =[]
for words in text_list:
for item in allitems:
selected_items = self.table.findItems(words, QtCore.Qt.MatchContains)
selected_items.append(self.table.findItems(words, QtCore.Qt.MatchContains)) ## i tried to make a list which is beeing appened but using this list it returns only the same as the input
item.setData(QtCore.Qt.UserRole, words 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_())
在前面的案例中，我想过滤案例，以免不必要地进行绘制，但在这种情况下，因为它更复杂，我决定使用 QTextCharFormat 而不是 [=17] 来实现突出显示逻辑=] 如下所示：
from PyQt5 import QtCore, QtGui, QtWidgets
import random
words = ["Hello dseerfd", "world sdfsdf sdfgsdf sdfsdf", "Stack dasdf", "Overflow", "Hello world", """<font color="red">Hello world</font>"""]
class HighlightDelegate(QtWidgets.QStyledItemDelegate):
def __init__(self, parent=None):
super(HighlightDelegate, self).__init__(parent)
self.doc = QtGui.QTextDocument(self)
self._filters = []
def paint(self, painter, option, index):
painter.save()
options = QtWidgets.QStyleOptionViewItem(option)
self.initStyleOption(options, index)
self.doc.setPlainText(options.text)
self.apply_highlight()
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)
the_constant = 4
margin = (option.rect.height() - options.fontMetrics.height()) // 2
margin = margin - the_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 apply_highlight(self):
cursor = QtGui.QTextCursor(self.doc)
cursor.beginEditBlock()
fmt = QtGui.QTextCharFormat()
fmt.setForeground(QtCore.Qt.red)
for f in self.filters():
highlightCursor = QtGui.QTextCursor(self.doc)
while not highlightCursor.isNull() and not highlightCursor.atEnd():
highlightCursor = self.doc.find(f, highlightCursor)
if not highlightCursor.isNull():
highlightCursor.mergeCharFormat(fmt)
cursor.endEditBlock()
@QtCore.pyqtSlot(list)
def setFilters(self, filters):
if self._filters == filters: return
self._filters = filters
def filters(self):
return self._filters
class Widget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Widget, self).__init__(parent)
self.table = QtWidgets.QTableWidget(30, 6)
self._delegate = HighlightDelegate(self.table)
self.table.setItemDelegate(self._delegate)
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)
self.table.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.ResizeToContents)
le = QtWidgets.QLineEdit()
le.textChanged.connect(self.on_textChanged)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(le)
lay.addWidget(self.table)
le.setText("ello ack")
@QtCore.pyqtSlot(str)
def on_textChanged(self, text):
self._delegate.setFilters(list(set(text.split())))
self.table.viewport().update()
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
w = Widget()
w.showMaximized()
sys.exit(app.exec_())