This class implements a concrete tool to geographic pan operation. More...

#include <Pan.h>

Inheritance diagram for te::qt::widgets::Pan:

Public Member Functions
virtual void	setCursor (const QCursor &cursor)
	It sets the tool cursor. More...

Initializer Methods
Methods related to instantiation and destruction.
	Pan (MapDisplay display, const QCursor &cursor, const QCursor &actionCursor=Qt::BlankCursor, QObject parent=0)
	It constructs a pan tool associated with the given map display and with the specified cursors. More...

	~Pan ()
	Destructor. More...

AbstractTool Methods
Methods related with tool behavior.
bool	mousePressEvent (QMouseEvent *e)
	This event handler can be reimplemented in a concrete tool class to receive mouse press events for the watched object. More...

bool	mouseMoveEvent (QMouseEvent *e)
	This event handler can be reimplemented in a concrete tool class to receive mouse move events for the watched object. More...

bool	mouseReleaseEvent (QMouseEvent *e)
	This event handler can be reimplemented in a concrete tool class to receive mouse release events for the watched object. More...

AbstractTool Methods
Methods related with tool behavior.
virtual bool	eventFilter (QObject watched, QEvent e)
	Filters events if this object has been installed as an event filter for the watched object. More...

virtual bool	mouseDoubleClickEvent (QMouseEvent *e)
	This event handler can be reimplemented in a concrete tool class to receive mouse double click events for the watched object. More...

Protected Attributes
QCursor	m_actionCursor
	An optional cursor to be used during the pan user action. More...

QCursor	m_cursor
	The default tool cursor. More...

QPoint	m_delta
	Difference between pressed point and destination point on mouse move. More...

MapDisplay *	m_display
	The map display associated with the tool. More...

QPoint	m_origin
	Origin point on mouse pressed. More...

bool	m_panStarted
	Flag that indicates if pan operation was started. More...

QPointF	m_referencePoint
	The reference origin point, in World Coordinate System. More...

Detailed Description

This class implements a concrete tool to geographic pan operation.

Definition at line 49 of file Pan.h.

Constructor & Destructor Documentation

te::qt::widgets::Pan::Pan	(	MapDisplay *	display,
		const QCursor &	cursor,
		const QCursor &	actionCursor = `Qt::BlankCursor`,
		QObject *	parent = `0`
	)

It constructs a pan tool associated with the given map display and with the specified cursors.

Parameters

display	The map display associated with the tool.
cursor	The default tool cursor.
actionCursor	An optional cursor to be used during the pan user action. If Qt::BlankCursor, it will be NOT modified.
parent	The tool's parent.

Note: The tool will NOT take the ownership of the given pointers.; If the given cursor is different of Qt::BlankCursor, it will be setted on map display.

te::qt::widgets::Pan::~Pan ( )

Destructor.

Member Function Documentation

virtual bool te::qt::widgets::AbstractTool::eventFilter	(	QObject *	watched,
		QEvent *	e
	)

virtualinherited

Filters events if this object has been installed as an event filter for the watched object.

Parameters

watched	The watched object.
event	The last event sent to watched object.

Note: In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.; Here, the default implementation looks for QMouseEvents and call the pure virutal methods defined on AbstractTool class, e.g. mousePressEvent().

Reimplemented in te::qt::widgets::ZoomKeyboard, and te::qt::widgets::ZoomWheel.

virtual bool te::qt::widgets::AbstractTool::mouseDoubleClickEvent ( QMouseEvent * e )

virtualinherited

This event handler can be reimplemented in a concrete tool class to receive mouse double click events for the watched object.

Parameters

e	The mouse event.

Returns: If you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Note: The AbstractTool will also receive mouse press and mouse release events in addition to the double click event. It is up to the developer to ensure that the application interprets these events correctly.

Reimplemented in te::edit::VertexTool, te::qt::widgets::Measure, te::edit::CreateLineTool, te::edit::CreatePolygonTool, te::qt::widgets::PolygonAcquire, te::mnt::ProfileTools, te::edit::AggregateAreaTool, and te::edit::SubtractAreaTool.

bool te::qt::widgets::Pan::mouseMoveEvent ( QMouseEvent * e )

virtual

This event handler can be reimplemented in a concrete tool class to receive mouse move events for the watched object.

Parameters

e	The mouse event.

Returns: If you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Reimplemented from te::qt::widgets::AbstractTool.

bool te::qt::widgets::Pan::mousePressEvent ( QMouseEvent * e )

virtual

This event handler can be reimplemented in a concrete tool class to receive mouse press events for the watched object.

Parameters

e	The mouse event.

Returns: If you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Reimplemented from te::qt::widgets::AbstractTool.

bool te::qt::widgets::Pan::mouseReleaseEvent ( QMouseEvent * e )

virtual

This event handler can be reimplemented in a concrete tool class to receive mouse release events for the watched object.

Parameters

e	The mouse event.

Returns: If you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Reimplemented from te::qt::widgets::AbstractTool.

virtual void te::qt::widgets::AbstractTool::setCursor ( const QCursor & cursor )

virtualinherited

It sets the tool cursor.

Parameters

cursor The cursor that will be used during the tool operation.

Member Data Documentation

QCursor te::qt::widgets::Pan::m_actionCursor

protected

An optional cursor to be used during the pan user action.

Definition at line 94 of file Pan.h.

QCursor te::qt::widgets::AbstractTool::m_cursor

protectedinherited

The default tool cursor.

Definition at line 161 of file AbstractTool.h.

QPoint te::qt::widgets::Pan::m_delta

protected

Difference between pressed point and destination point on mouse move.

Definition at line 93 of file Pan.h.

MapDisplay* te::qt::widgets::AbstractTool::m_display

protectedinherited

The map display associated with the tool.

Definition at line 160 of file AbstractTool.h.

QPoint te::qt::widgets::Pan::m_origin

protected

Origin point on mouse pressed.

Definition at line 92 of file Pan.h.

bool te::qt::widgets::Pan::m_panStarted

protected

Flag that indicates if pan operation was started.

Definition at line 91 of file Pan.h.

QPointF te::qt::widgets::Pan::m_referencePoint

protected

The reference origin point, in World Coordinate System.

Definition at line 95 of file Pan.h.

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

C:/CC_master/terralib5/src/terralib/qt/widgets/tools/Pan.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation