Das deutsche Python-Forum

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QAbstractItemView {
     border-bottom-right-radius: 3px;
     border-bottom-left-radius: 3px;
     border: 1px solid gainsboro;
     box-shadow: transparent;
     padding: 4px 4px 4px 4px;

Code: Alles auswählen

QComboBox {
    border: 1px solid gainsboro;
    border-radius: 3px;
    selection-color: black;
    selection-background-color: rgb(250, 250, 250);
}

Code: Alles auswählen

QFontComboBox, QComboBox
{
background: #9141ac;
font-size: 8pt;
}

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from PySide6.QtWidgets import (QTextEdit, QComboBox, QMainWindow, QToolBar, 
                        QApplication)
from PySide6.QtGui import Qt, QFontDatabase, QIcon,QTextCharFormat, QTextCursor
import sys

class myEditor(QMainWindow):
    def __init__(self, parent = None):
        super(myEditor, self).__init__(parent)
        self.editor = QTextEdit() 
        self.setCentralWidget(self.editor)
        self.setStyleSheet(myStyleSheet(self))
        self.createToolbar()

    def createToolbar(self):        
        ### Font Toolbar
        self.font_tb = QToolBar(self)
        self.font_tb.setAllowedAreas(Qt.TopToolBarArea | Qt.BottomToolBarArea)
        self.font_tb.setWindowTitle("Font Toolbar")
        
        self.comboFont = QComboBox(self.font_tb)
        self.font_tb.addSeparator()
        self.font_tb.addWidget(self.comboFont)
        self.comboFont.setEditable(True)


        self.comboSize = QComboBox(self.font_tb)
        self.font_tb.addSeparator()
        self.comboSize.setObjectName("comboSize")
        self.font_tb.addWidget(self.comboSize)
        self.comboSize.setEditable(True)

        fontFamilies = QFontDatabase.families()
        for family in fontFamilies:
            self.comboFont.addItem(family)
        fontStyles = QFontDatabase.styles(family)
        for style in fontStyles:
            smoothSizes = QFontDatabase.smoothSizes(family, style)
            for points in smoothSizes:
                self.comboSize.addItem(str(points))
        self.comboSize.currentTextChanged.connect(self.textSize)
        self.comboSize.setCurrentIndex(4)
        
  
        self.addToolBar(self.font_tb)
        index = self.comboFont.findText("Ubuntu")
        self.comboFont.currentTextChanged.connect(self.textFamily)
        self.comboFont.setCurrentIndex(index)
        
        self.editor.setText("Das ist ein Text")

    def textFamily(self):
        family = self.comboFont.currentText()
        fmt = QTextCharFormat()
        fmt.setFont(family)
        self.mergeFormatOnWordOrSelection(fmt)

    def textSize(self, pointSize):
        pointSize = int(self.comboSize.currentText())
        if pointSize > 0:
            fmt = QTextCharFormat()
            fmt.setFontPointSize(pointSize)
            self.mergeFormatOnWordOrSelection(fmt)
            
    def mergeFormatOnWordOrSelection(self, format):
        cursor = self.editor.textCursor()
        if not cursor.hasSelection():
            cursor.select(QTextCursor.WordUnderCursor)

        cursor.mergeCharFormat(format)
        self.editor.mergeCurrentCharFormat(format)

  
def myStyleSheet(self):
    return """
    QComboBox
    {
    background: lightgreen;
    font-size: 10pt;
    }
    QComboBox QListView:item {
    background: lightblue;
}
    QComboBox QListView:item:hover {
    background: yellow;
    color: #222;
    border: 2px solid red;
}
    """       

if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = myEditor()
    win.setWindowIcon(QIcon.fromTheme("accessories-text-editor"))
    win.setWindowTitle("RichTextEdit")
    win.setMinimumSize(640,250)
    win.show()
    app.exec()