IlvManagerMakeTextInteractor Class Reference

Manager view interactor class. More...

#include <ilviews/gadmgr/txtinter.h>

Inheritance diagram for IlvManagerMakeTextInteractor:

List of all members.

Public Member Functions
	IlvManagerMakeTextInteractor (IlvManager *manager, IlvView *view)
	Constructor.
virtual void	abort ()
	Aborts the interaction.
virtual IlBoolean	accept (IlvPoint &p)
	Called to start the interaction with the text object.
virtual void	doIt (const char *const *s, IlUShort count)=0
	Finalizes the interaction.
const char *const *	getLines (IlUShort &count) const
	Returns the array of character strings being edited.
void	handleEvent (IlvEvent &event)
	Handles events for the manager view.
void	handleExpose (IlvRegion *clip)
	Called when the manager view receives an expose event.
void	reDraw ()
	Redraws the text object.
void	setLines (const char *const *s, IlUShort count, IlBoolean redraw=IlTrue)
	Sets the contents of the text object to the specified array of strings.

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Detailed Description

Manager view interactor class.

Library: ilvadvgadmgr

The IlvManagerMakeTextInteractor abstract class lets you edit multiline text objects or create new ones. When the user presses the left mouse button in the view to which this interactor is connected, a temporary text object (IlvText) is created. This lets the user enter some text. The validation is made by double-clicking in the working area; the virtual member function doIt is then called.

See also:

IlvLabel, IlvListLabel, IlvManagerMakeListLabelInteractor, IlvManagerMakeStringInteractor, IlvStringList, IlvText.

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Constructor & Destructor Documentation

IlvManagerMakeTextInteractor::IlvManagerMakeTextInteractor	(	IlvManager *	manager,
		IlvView *	view
	)

Constructor.

Calls the constructor of the superclass and performs internal initializations.

Parameters:

	manager	The manager.
	view	The manager view.

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Member Function Documentation

virtual void IlvManagerMakeTextInteractor::abort

(

)

[virtual]

Aborts the interaction.

Called by the manager when the user changes the current interactor. It resets the interactor to a state in which it appears to have never been launched. A common implementation is to erase the ghost image. Call this member function to inhibit the interactor action in particular circumstances.

Reimplemented from IlvManagerViewInteractor.

virtual IlBoolean IlvManagerMakeTextInteractor::accept

(

IlvPoint &

p

)

[virtual]

Called to start the interaction with the text object.

Is called when the user presses the left mouse button in the working view. The default implementation creates the text object at position p and returns IlTrue. If you create subtypes of this class, always call this function to create the text object.

Parameters:

p

The position of the event that initiated the interaction.

Returns:

IlTrue if the interactor accepts the point as a valid position to start the interaction.

Reimplemented in IlvManagerMakeListLabelInteractor.

virtual void IlvManagerMakeTextInteractor::doIt	(	const char *const *	s,
		IlUShort	count
	)			[pure virtual]

Finalizes the interaction.

This virtual member function is called when the user validates the text entry. The text contents is passed to this function. Note that this function declaration makes this class a pure abstract class.

Parameters:

	lines	The array of strings contained in the text object.
	count	The number of strings in the array.

Implemented in IlvManagerMakeListLabelInteractor.

const char* const* IlvManagerMakeTextInteractor::getLines

(

IlUShort &

count

)

const

Returns the array of character strings being edited.

Returns:

The array of strings that are currently being edited.

Parameters:

count

Used to return the number of strings in the array. You should never modify or delete this array.

void IlvManagerMakeTextInteractor::handleEvent

(

IlvEvent &

event

)

[virtual]

Handles events for the manager view.

Called by the manager for which the interactor was created with every event it receives in the interactor view.

Implements IlvManagerViewInteractor.

void IlvManagerMakeTextInteractor::handleExpose

(

IlvRegion *

clip

)

[virtual]

Called when the manager view receives an expose event.

Called by the manager when an exposure request occurs in the interactor view to redraw shapes handled by the interactor, such as a ghost image. The basic implementation calls the member function IlvManagerViewInteractor::drawGhost after the clipping region has been set to the exposed area.

Parameters:

clip

Specifies the exposed area.

Reimplemented from IlvManagerViewInteractor.

void IlvManagerMakeTextInteractor::setLines	(	const char *const *	s,
		IlUShort	count,
		IlBoolean	redraw = IlTrue
	)

Sets the contents of the text object to the specified array of strings.

Parameters:

	lines	The array of strings.
	count	The number of strings in the array.
	redraw	If set to IlTrue, the text object is redrawn.