vtkQtChartLegendModel Class Reference

The vtkQtChartLegendModel class stores the data for a chart legend. More...

#include <vtkQtChartLegendModel.h>

List of all members.

Signals
void	entryInserted (int index)
	Emitted when a new entry is added.
void	removingEntry (int index)
	Emitted before an entry is removed.
void	entryRemoved (int index)
	Emitted after an entry is removed.
void	entriesReset ()
	Emitted when the legend entries are reset.
void	iconChanged (int index)
	Emitted when the icon for an entry has changed.
void	textChanged (int index)
	Emitted when the text for an entry has changed.
Public Member Functions
	vtkQtChartLegendModel (QObject *parent=0)
	Creates a chart legend model.
virtual	~vtkQtChartLegendModel ()
int	addEntry (const QPixmap &icon, const QString &text)
	Adds an entry to the chart legend.
int	insertEntry (int index, const QPixmap &icon, const QString &text)
	Inserts an entry into the chart legend.
void	removeEntry (int index)
	Removes an entry from the chart legend.
void	removeAllEntries ()
	Removes all the entries from the legend.
void	startModifyingData ()
	Blocks the model modification signals.
void	finishModifyingData ()
	Unblocks the model modification signals.
int	getNumberOfEntries () const
	Gets the number of entries in the legend.
int	getIndexForId (unsigned int id) const
	Gets the index for the given id.
QPixmap	getIcon (int index) const
	Gets the icon for the given index.
void	setIcon (int index, const QPixmap &icon)
	Sets the icon for the given index.
QString	getText (int index) const
	Gets the text for the given index.
void	setText (int index, const QString &text)
	Sets the text for the given index.

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Detailed Description

The vtkQtChartLegendModel class stores the data for a chart legend.

Definition at line 41 of file vtkQtChartLegendModel.h.

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Constructor & Destructor Documentation

vtkQtChartLegendModel::vtkQtChartLegendModel

(

QObject *

parent = 0 )

Creates a chart legend model.

Parameters:

parent

The parent object.

virtual vtkQtChartLegendModel::~vtkQtChartLegendModel

(

)

[virtual]

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Member Function Documentation

int vtkQtChartLegendModel::addEntry	(	const QPixmap &	icon,
		const QString &	text
	)

Adds an entry to the chart legend.

Parameters:

icon	The series identifying image.
text	The series label.

Returns:

The id for the inserted entry or zero for failure.

void vtkQtChartLegendModel::entriesReset

(

)

[signal]

Emitted when the legend entries are reset.

void vtkQtChartLegendModel::entryInserted

(

int

index )

[signal]

Emitted when a new entry is added.

Parameters:

index

Where the entry was added.

void vtkQtChartLegendModel::entryRemoved

(

int

index )

[signal]

Emitted after an entry is removed.

Parameters:

index

The index being removed.

void vtkQtChartLegendModel::finishModifyingData

(

)

Unblocks the model modification signals.

The entriesReset signal is emitted to synchronize the view.

See also:

vtkQtChartLegendModel::startModifyingData()

QPixmap vtkQtChartLegendModel::getIcon

(

int

index )

const

Gets the icon for the given index.

Parameters:

index

The index of the entry.

Returns:

The icon for the given index or a null pixmap if the index is out of bounds.

int vtkQtChartLegendModel::getIndexForId

(

unsigned int

id )

const

Gets the index for the given id.

Parameters:

id	The entry identifier.

Returns:

The index for the entry that matches the id or -1 if there is no matching entry.

int vtkQtChartLegendModel::getNumberOfEntries

(

)

const

Gets the number of entries in the legend.

Returns:

The number of entries in the legend.

QString vtkQtChartLegendModel::getText

(

int

index )

const

Gets the text for the given index.

Parameters:

index

The index of the entry.

Returns:

The text for the given index or a null string if the index is out of bounds.

void vtkQtChartLegendModel::iconChanged

(

int

index )

[signal]

Emitted when the icon for an entry has changed.

Parameters:

index

The index of the entry that changed.

int vtkQtChartLegendModel::insertEntry	(	int	index,
		const QPixmap &	icon,
		const QString &	text
	)

Inserts an entry into the chart legend.

Parameters:

index	Where to place the new entry.
icon	The series identifying image.
text	The series label.

Returns:

The id for the inserted entry or zero for failure.

void vtkQtChartLegendModel::removeAllEntries

(

)

Removes all the entries from the legend.

void vtkQtChartLegendModel::removeEntry

(

int

index )

Removes an entry from the chart legend.

Parameters:

index

The index of the entry to remove.

void vtkQtChartLegendModel::removingEntry

(

int

index )

[signal]

Emitted before an entry is removed.

Parameters:

index

The index being removed.

void vtkQtChartLegendModel::setIcon	(	int	index,
		const QPixmap &	icon
	)

Sets the icon for the given index.

Parameters:

index	The index of the entry.
icon	The new series icon.

void vtkQtChartLegendModel::setText	(	int	index,
		const QString &	text
	)

Sets the text for the given index.

Parameters:

index	The index of the entry.
text	The new series label.

void vtkQtChartLegendModel::startModifyingData

(

)

Blocks the model modification signals.

This method should be called before making multiple changes to the model. It will prevent the view from updating before the changes are complete. Once all the changes are made, the finishModifyingData method should be called to notify the view of the changes.

See also:

vtkQtChartLegendModel::finishModifyingData()

void vtkQtChartLegendModel::textChanged

(

int

index )

[signal]

Emitted when the text for an entry has changed.

Parameters:

index

The index of the entry that changed.

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The documentation for this class was generated from the following file:

• vtkQtChartLegendModel.h