ComboBoxDelegate.py 文件源码

def createEditor(self, parent: QWidget, option: QStyleOptionViewItem, index: QModelIndex):
        editor = QComboBox(parent)
        if sys.platform == "win32":
            # Ensure text entries are visible with windows combo boxes
            editor.setMinimumHeight(self.sizeHint(option, index).height() + 10)

        editor.addItems(self.items)

        if self.is_editable:
            editor.setEditable(True)
            editor.setInsertPolicy(QComboBox.NoInsert)

        if self.current_edit_text:
            editor.setEditText(self.current_edit_text)

        if self.colors:
            img = QImage(16, 16, QImage.Format_RGB32)
            painter = QPainter(img)

            painter.fillRect(img.rect(), Qt.black)
            rect = img.rect().adjusted(1, 1, -1, -1)
            for i, item in enumerate(self.items):
                color = self.colors[i]
                painter.fillRect(rect, QColor(color.red(), color.green(), color.blue(), 255))
                editor.setItemData(i, QPixmap.fromImage(img), Qt.DecorationRole)

            del painter
        editor.currentIndexChanged.connect(self.currentIndexChanged)
        editor.editTextChanged.connect(self.on_edit_text_changed)
        return editor