QComboBox uses the model/view framework for its popup list and to store its items. For editable comboboxes you can set auto-completion using setCompleter() and whether or not the user can add duplicates is set with setDuplicatesEnabled(). You can allow editing using setEditable(). The number of items in the combobox is returned by count() the maximum number of items can be set with setMaxCount(). The current item can be set with setCurrentIndex(). The text of the current item is returned by currentText(), and the text of a numbered item is returned with text(). An item can be removed with removeItem() and all items can be removed with clear(). By default, any input is accepted.Ī combobox can be populated using the insert functions, insertItem() and insertItems() for example. It is possible to constrain the input to an editable combobox using QValidator see setValidator().
The default policy is InsertAtBottom but you can change this using setInsertPolicy(). When the user enters a new string in an editable combobox, the widget may or may not insert it, and it can insert it in several locations. Whenever the text of an editable combobox is changed the editTextChanged() signal is emitted. If the user selects or highlights a pixmap, only the int signals are emitted. All three signals exist in two versions, one with a QString argument and one with an int argument. The highlighted() signal is emitted when the user highlights an item in the combobox popup list.
currentIndexChanged() and currentTextChanged() are always emitted regardless if the change was done programmatically or by user interaction, while activated() is only emitted when the change is caused by user interaction. There are three signals emitted if the current item of a combobox changes, currentIndexChanged(), currentTextChanged() and activated(). For editable comboboxes, the function clearEditText() is provided, to clear the displayed string without changing the combobox's contents. A combobox may be editable, allowing the user to modify each item in the list.Ĭomboboxes can contain pixmaps as well as strings the insertItem() and setItemText() functions are suitably overloaded.
SetValidator(const QValidator * validator)Ī QComboBox provides a means of presenting a list of options to the user in a way that takes up the minimum amount of screen space.Ī combobox is a selection widget that displays the current item, and can pop up a list of selectable items. SetSizeAdjustPolicy(QComboBox::SizeAdjustPolicy policy) SetRootModelIndex(const QModelIndex & index) SetPlaceholderText(const QString & placeholderText) SetItemText(int index, const QString & text) SetItemIcon(int index, const QIcon & icon) SetItemDelegate(QAbstractItemDelegate * delegate) SetItemData(int index, const QVariant & value, int role = Qt::UserRole) SetInsertPolicy(QComboBox::InsertPolicy policy) ItemData(int index, int role = Qt::UserRole) const InsertItems(int index, const QStringList & list) InsertItem(int index, const QIcon & icon, const QString & text, const QVariant & userData = QVariant()) InsertItem(int index, const QString & text, const QVariant & userData = QVariant()) KOMATSU CSS Parts Book Viewer v5.AddItem(const QString & text, const QVariant & userData = QVariant())ĪddItem(const QIcon & icon, const QString & text, const QVariant & userData = QVariant())ĬurrentData(int role = Qt::UserRole) constįindData(const QVariant & data, int role = Qt::UserRole, Qt::MatchFlags flags = static_cast(Qt::MatchExactly|Qt::MatchCaseSensitive)) constįindText(const QString & text, Qt::MatchFlags flags = Qt::MatchExactly|Qt::MatchCaseSensitive) const
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KOMATSU CSS Parts Book Viewer Workshop manuals + Spare Parts
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