Qwt User's Guide 5.2.2
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The legend widget. More...
#include <qwt_legend.h>
Public Types | |
enum | LegendDisplayPolicy { NoIdentifier = 0, FixedIdentifier = 1, AutoIdentifier = 2 } |
enum | LegendItemMode { ReadOnlyItem, ClickableItem, CheckableItem } |
Public Member Functions | |
void | clear () |
const QWidget * | contentsWidget () const |
QWidget * | contentsWidget () |
LegendDisplayPolicy | displayPolicy () const |
virtual bool | eventFilter (QObject *, QEvent *) |
QwtLegendItemManager * | find (const QWidget *) const |
QWidget * | find (const QwtLegendItemManager *) const |
virtual int | heightForWidth (int w) const |
QScrollBar * | horizontalScrollBar () const |
int | identifierMode () const |
void | insert (const QwtLegendItemManager *, QWidget *) |
bool | isEmpty () const |
uint | itemCount () const |
LegendItemMode | itemMode () const |
virtual QList< QWidget * > | legendItems () const |
QwtLegend (QWidget *parent=NULL) | |
void | remove (const QwtLegendItemManager *) |
void | setDisplayPolicy (LegendDisplayPolicy policy, int mode) |
void | setItemMode (LegendItemMode) |
virtual QSize | sizeHint () const |
QScrollBar * | verticalScrollBar () const |
virtual | ~QwtLegend () |
Protected Member Functions | |
virtual void | layoutContents () |
virtual void | resizeEvent (QResizeEvent *) |
The legend widget.
The QwtLegend widget is a tabular arrangement of legend items. Legend items might be any type of widget, but in general they will be a QwtLegendItem.
Display policy.
Default is AutoIdentifier.
Interaction mode for the legend items.
Default is ReadOnlyItem.
QwtLegend::QwtLegend | ( | QWidget * | parent = NULL | ) | [explicit] |
Constructor
parent | Parent widget |
QwtLegend::~QwtLegend | ( | ) | [virtual] |
Destructor.
void QwtLegend::clear | ( | ) |
Remove all items.
QWidget * QwtLegend::contentsWidget | ( | ) |
The contents widget is the only child of the viewport() and the parent widget of all legend items.
const QWidget * QwtLegend::contentsWidget | ( | ) | const |
The contents widget is the only child of the viewport() and the parent widget of all legend items.
QwtLegend::LegendDisplayPolicy QwtLegend::displayPolicy | ( | ) | const |
bool QwtLegend::eventFilter | ( | QObject * | o, |
QEvent * | e | ||
) | [virtual] |
Filter layout related events of QwtLegend::contentsWidget().
o | Object to be filtered |
e | Event |
QWidget * QwtLegend::find | ( | const QwtLegendItemManager * | plotItem | ) | const |
Find the widget that represents a plot item
plotItem | Plot item |
QwtLegendItemManager * QwtLegend::find | ( | const QWidget * | legendItem | ) | const |
Find the widget that represents a plot item
legendItem | Legend item |
int QwtLegend::heightForWidth | ( | int | width | ) | const [virtual] |
width | Width |
QScrollBar * QwtLegend::horizontalScrollBar | ( | ) | const |
int QwtLegend::identifierMode | ( | ) | const |
Default is ShowLine | ShowSymbol | ShowText.
void QwtLegend::insert | ( | const QwtLegendItemManager * | plotItem, |
QWidget * | legendItem | ||
) |
Insert a new item for a plot item
plotItem | Plot item |
legendItem | New legend item |
bool QwtLegend::isEmpty | ( | ) | const |
Return true, if there are no legend items.
uint QwtLegend::itemCount | ( | ) | const |
Return the number of legend items.
QwtLegend::LegendItemMode QwtLegend::itemMode | ( | ) | const |
void QwtLegend::layoutContents | ( | ) | [protected, virtual] |
Adjust contents widget and item layout to the size of the viewport().
QList< QWidget * > QwtLegend::legendItems | ( | ) | const [virtual] |
Return a list of all legend items.
void QwtLegend::remove | ( | const QwtLegendItemManager * | plotItem | ) |
Find the corresponding item for a plotItem and remove it from the item list.
plotItem | Plot item |
void QwtLegend::resizeEvent | ( | QResizeEvent * | e | ) | [protected, virtual] |
Resize event
e | Resize event |
void QwtLegend::setDisplayPolicy | ( | LegendDisplayPolicy | policy, |
int | mode | ||
) |
Set the legend display policy to:
policy | Legend display policy |
mode | Identifier mode (or'd ShowLine, ShowSymbol, ShowText) |
void QwtLegend::setItemMode | ( | LegendItemMode | mode | ) |
QSize QwtLegend::sizeHint | ( | ) | const [virtual] |
Return a size hint.
QScrollBar * QwtLegend::verticalScrollBar | ( | ) | const |