This class implements a concrete tool to geographic zoom operation using the left and right mouse clicks. More...

#include <ZoomLeftAndRightClick.h>

Inheritance diagram for te::qt::widgets::ZoomLeftAndRightClick:

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

Initializer Methods
Methods related to instantiation and destruction.
	ZoomLeftAndRightClick (MapDisplay display, const double &zoomFactor=2.0, QObject parent=0)
	It constructs a zoom click tool associated with the given map display. More...

	~ZoomLeftAndRightClick ()
	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...

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

virtual 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...

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_cursor
	The default tool cursor. More...

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

double	m_zoomFactor
	Factor used to zoom. i.e. A factor value of 2.0 (default) will generate a new extent twice (%) bigger or smaller, depending of ZoomType. More...

Detailed Description

This class implements a concrete tool to geographic zoom operation using the left and right mouse clicks.

Definition at line 47 of file ZoomLeftAndRightClick.h.

Constructor & Destructor Documentation

te::qt::widgets::ZoomLeftAndRightClick::ZoomLeftAndRightClick	(	MapDisplay *	display,
		const double &	zoomFactor = `2.0`,
		QObject *	parent = `0`
	)

It constructs a zoom click tool associated with the given map display.

Parameters

display	The map display associated with the tool.
zoomFactor	The factor used to zoom. i.e. A factor value of 2.0 (default) will generate a new extent twice (%) bigger or smaller.
parent	The tool's parent.

Note: The tool will NOT take the ownership of the given pointers.

te::qt::widgets::ZoomLeftAndRightClick::~ZoomLeftAndRightClick ( )

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::SplitPolygonTool, te::edit::CreatePolygonTool, te::edit::CreateLineTool, te::edit::CreatePointTool, te::qt::widgets::PolygonAcquire, te::edit::AggregateAreaTool, te::edit::SubtractAreaTool, and te::mnt::ProfileTools.

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

virtualinherited

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 in te::edit::VertexTool, te::qt::widgets::Measure, te::edit::SplitPolygonTool, te::qt::widgets::Selection, te::edit::CreatePolygonTool, te::edit::DeleteGeometryByAreaTool, te::edit::MoveGeometryTool, te::edit::CreateLineTool, te::qt::widgets::PolygonAcquire, te::qt::widgets::PanExtent, te::qt::widgets::ExtentAcquire, te::edit::AggregateAreaTool, te::qt::widgets::RubberBand, te::qt::widgets::CoordTracking, te::qt::widgets::Pan, te::qt::widgets::ZoomArea, te::qt::widgets::PanMiddleClick, te::edit::SubtractAreaTool, te::mnt::ProfileTools, and te::qt::plugins::mnt::ShowValuesTool.

bool te::qt::widgets::ZoomLeftAndRightClick::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.

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

virtualinherited

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 in te::edit::VertexTool, te::qt::widgets::Measure, te::qt::widgets::Info, te::edit::SplitPolygonTool, te::edit::CreatePolygonTool, te::qt::widgets::Selection, te::edit::DeleteGeometryByAreaTool, te::edit::MoveGeometryTool, te::qt::widgets::PolygonAcquire, te::qt::widgets::PanExtent, te::edit::AggregateAreaTool, te::qt::widgets::ExtentAcquire, te::qt::widgets::RubberBand, te::qt::widgets::Pan, te::qt::widgets::ZoomArea, te::qt::widgets::PanMiddleClick, te::qt::widgets::PointPicker, te::edit::SubtractAreaTool, te::mnt::ProfileTools, and te::qt::widgets::ReadPixelTool.

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::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.

double te::qt::widgets::ZoomLeftAndRightClick::m_zoomFactor

protected

Factor used to zoom. i.e. A factor value of 2.0 (default) will generate a new extent twice (%) bigger or smaller, depending of ZoomType.

Definition at line 83 of file ZoomLeftAndRightClick.h.

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

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

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation