This class implements a concrete tool to geographic zoom in operation using a boundary rectangle. More...

#include <ZoomArea.h>

Inheritance diagram for te::qt::widgets::ZoomArea:

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

Initializer Methods
Methods related to instantiation and destruction.
	ZoomArea (MapDisplay display, const QCursor &cursor, QObject parent=0)
	It constructs a zoom area tool associated with the given map display and with the specified cursor. More...

	~ZoomArea ()
	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
QBrush	m_brush
	The brush used to draw the rubber band shape. More...

QCursor	m_cursor
	The default tool cursor. More...

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

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

QPen	m_pen
	The pen used to draw the rubber band shape. More...

QRectF	m_rect
	The boundary rectangle managed by the rubber band. More...

Private Member Functions
Copy Constructor and Assignment Operator
Copy constructor and assignment operator not allowed.
	ZoomArea (const ZoomArea &rhs)
	Copy constructor not allowed. More...

ZoomArea &	operator= (const ZoomArea &rhs)
	Assignment operator not allowed. More...

Private Attributes
bool	m_zoomStarted
	Flag that indicates if zoom area operation was started. More...

Detailed Description

This class implements a concrete tool to geographic zoom in operation using a boundary rectangle.

Definition at line 49 of file ZoomArea.h.

Constructor & Destructor Documentation

te::qt::widgets::ZoomArea::ZoomArea	(	MapDisplay *	display,
		const QCursor &	cursor,
		QObject *	parent = `0`
	)

It constructs a zoom area tool associated with the given map display and with the specified cursor.

Parameters

display	The map display associated with the tool.
cursor	The tool cursor.
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::ZoomArea::~ZoomArea ( )

Destructor.

te::qt::widgets::ZoomArea::ZoomArea ( const ZoomArea & rhs )

private

Copy constructor not allowed.

Parameters

rhs	The right-hand-side copy that would be used to copy from.

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::edit::AggregateAreaTool, and te::edit::SubtractAreaTool.

bool te::qt::widgets::ZoomArea::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::RubberBand.

bool te::qt::widgets::ZoomArea::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::RubberBand.

bool te::qt::widgets::ZoomArea::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::RubberBand.

ZoomArea& te::qt::widgets::ZoomArea::operator= ( const ZoomArea & rhs )

private

Assignment operator not allowed.

Parameters

rhs	The right-hand-side copy that would be used to copy from.

Returns: A reference to this object.

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

QBrush te::qt::widgets::RubberBand::m_brush

protectedinherited

The brush used to draw the rubber band shape.

Definition at line 95 of file RubberBand.h.

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

protectedinherited

The default tool cursor.

Definition at line 161 of file AbstractTool.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::RubberBand::m_origin

protectedinherited

Origin point on mouse pressed.

Definition at line 92 of file RubberBand.h.

QPen te::qt::widgets::RubberBand::m_pen

protectedinherited

The pen used to draw the rubber band shape.

Definition at line 94 of file RubberBand.h.

QRectF te::qt::widgets::RubberBand::m_rect

protectedinherited

The boundary rectangle managed by the rubber band.

Definition at line 93 of file RubberBand.h.

bool te::qt::widgets::ZoomArea::m_zoomStarted

private

Flag that indicates if zoom area operation was started.

Definition at line 115 of file ZoomArea.h.

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

/home/castejon/castejon_files/develop/terralib5/git_master/terralib5/src/terralib/qt/widgets/tools/ZoomArea.h

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation