Detailed Description
The QTableWidgetItem class provides an item for use with the QTableWidget class.
Table items are used to hold pieces of information for table widgets. Items usually contain text, icons, or checkboxes
The QTableWidgetItem class is a convenience class that replaces the QTableItem class in Qt 3. It provides an item for use with the QTableWidget class.
Top-level items are constructed without a parent then inserted at the position specified by a pair of row and column numbers:
QTableWidgetItem *newItem = new QTableWidgetItem(tr("%1").arg(
pow(row, column+1)));
tableWidget->setItem(row, column, newItem);
Each item can have its own background color which is set with the setBackgroundColor() function. The current background color can be found with backgroundColor(). The text label for each item can be rendered with its own font and text color. These are specified with the setFont() and setTextColor() functions, and read with font() and textColor().
By default, items are enabled, editable, selectable, checkable, and can be used both as the source of a drag and drop operation and as a drop target. Each item's flags can be changed by calling setFlags() with the appropriate value (see Qt::ItemFlags). Checkable items can be checked and unchecked with the setChecked() function. The corresponding checked() function indicates whether the item is currently checked.
See also QTableWidget, Model/View Programming, QListWidgetItem, and QTreeWidgetItem.
Member Function Documentation
QTableWidgetItem::QTableWidgetItem ( int type = Type )
Constructs a table item of the specified type that does not belong to any table.
See also type().
QTableWidgetItem::QTableWidgetItem ( const QString & text, int type = Type )
Constructs a table item with the given text.
See also type().
QTableWidgetItem::QTableWidgetItem ( const QTableWidgetItem & other )
Constructs a copy of other. Note that type() and tableWidget() are not copied.
This function is useful when reimplementing clone().
This function was introduced in Qt 4.1.
See also data() and flags().
QTableWidgetItem::~QTableWidgetItem () [virtual]
Destroys the table item.
QColor QTableWidgetItem::backgroundColor () const
Returns the color used to render the item's background.
See also textColor() and setBackgroundColor().
Qt::CheckState QTableWidgetItem::checkState () const
Returns the checked state of the table item.
See also setCheckState() and flags().
QTableWidgetItem * QTableWidgetItem::clone () const [virtual]
Creates a copy of the item.
QVariant QTableWidgetItem::data ( int role ) const [virtual]
Returns the item's data for the given role.
See also setData().
Qt::ItemFlags QTableWidgetItem::flags () const
Returns the flags used to describe the item. These determine whether the item can be checked, edited, and selected.
See also setFlags().
QFont QTableWidgetItem::font () const
Returns the font used to render the item's text.
See also setFont().
QIcon QTableWidgetItem::icon () const
Returns the item's icon.
See also setIcon() and iconSize.
void QTableWidgetItem::read ( QDataStream & in ) [virtual]
Reads the item from stream in.
See also write().
void QTableWidgetItem::setBackgroundColor ( const QColor & color )
Sets the item's background color to the specified color.
See also backgroundColor() and setTextColor().
void QTableWidgetItem::setCheckState ( Qt::CheckState state )
Sets the check state of the table item to be state.
See also checkState().
void QTableWidgetItem::setData ( int role, const QVariant & value ) [virtual]
Sets the item's data for the given role to the specified value.
See also Qt::ItemDataRole and data().
void QTableWidgetItem::setFlags ( Qt::ItemFlags flags )
Sets the flags for the item to the given flags. These determine whether the item can be selected or modified.
See also flags().
void QTableWidgetItem::setFont ( const QFont & font )
Sets the font used to display the item's text to the given font.
See also font(), setText(), and setTextColor().
void QTableWidgetItem::setIcon ( const QIcon & icon )
Sets the item's icon to the icon specified.
See also icon(), setText(), and iconSize.
void QTableWidgetItem::setSizeHint ( const QSize & size )
Sets the size hint for the table item to be size. If no size hint is set, the item delegate will compute the size hint based on the item data.
This function was introduced in Qt 4.1.
See also sizeHint().
void QTableWidgetItem::setStatusTip ( const QString & statusTip )
Sets the item's status tip to the string specified by statusTip.
See also statusTip(), setToolTip(), and setWhatsThis().
void QTableWidgetItem::setText ( const QString & text )
Sets the item's text to the text specified.
See also text(), setFont(), and setTextColor().
void QTableWidgetItem::setTextAlignment ( int alignment )
Sets the text alignment for the item's text to the alignment specified.
See also textAlignment() and Qt::Alignment.
void QTableWidgetItem::setTextColor ( const QColor & color )
Sets the color used to display the item's text to the given color.
See also textColor(), setFont(), and setText().
void QTableWidgetItem::setToolTip ( const QString & toolTip )
Sets the item's tooltip to the string specified by toolTip.
See also toolTip(), setStatusTip(), and setWhatsThis().
void QTableWidgetItem::setWhatsThis ( const QString & whatsThis )
Sets the item's "What's This?" help to the string specified by whatsThis.
See also whatsThis(), setStatusTip(), and setToolTip().
QSize QTableWidgetItem::sizeHint () const
Returns the size hint set for the table item.
This function was introduced in Qt 4.1.
See also setSizeHint().
QString QTableWidgetItem::statusTip () const
Returns the item's status tip.
See also setStatusTip().
QTableWidget * QTableWidgetItem::tableWidget () const
Returns the table widget that contains the item.
QString QTableWidgetItem::text () const
Returns the item's text.
See also setText().
int QTableWidgetItem::textAlignment () const
Returns the text alignment for the item's text.
See also setTextAlignment() and Qt::Alignment.
QColor QTableWidgetItem::textColor () const
Returns the color used to render the item's text.
See also backgroundColor() and setTextColor().
QString QTableWidgetItem::toolTip () const
Returns the item's tooltip.
See also setToolTip().
int QTableWidgetItem::type () const
Returns the type passed to the QTableWidgetItem constructor.
QString QTableWidgetItem::whatsThis () const
Returns the item's "What's This?" help.
See also setWhatsThis().
void QTableWidgetItem::write ( QDataStream & out ) const [virtual]
Writes the item to stream out.
See also read().
bool QTableWidgetItem::operator< ( const QTableWidgetItem & other ) const [virtual]
Returns true if the item is less than the other item; otherwise returns false.
QTableWidgetItem & QTableWidgetItem::operator= ( const QTableWidgetItem & other )
Assigns other's data and flags to this item. Note that type() and tableWidget() are not copied.
This function is useful when reimplementing clone().
See also data() and flags().
Member Variable Documentation
const int QTableWidgetItem::Type
The default type for table widget items.
See also UserType and type().
const int QTableWidgetItem::UserType
The minimum value for custom types. Values below UserType are reserved by Qt.
See also Type and type().
Related Non-Members
QDataStream & operator<< ( QDataStream & out, const QTableWidgetItem & item )
This is an overloaded member function, provided for convenience.
Writes the table widget item item to stream out.
This operator uses QTableWidgetItem::write().
See also Format of the QDataStream Operators.
QDataStream & operator>> ( QDataStream & in, QTableWidgetItem & item )
This is an overloaded member function, provided for convenience.
Reads a table widget item from stream in into item.
This operator uses QTableWidgetItem::read().
See also Format of the QDataStream Operators.
