te::qt::widgets::Selection Class Reference

This class implements a concrete tool to select layer features using an extent. More...

#include <Selection.h>

Inheritance diagram for te::qt::widgets::Selection:
te::qt::widgets::RubberBand te::qt::widgets::AbstractTool

Public Slots

void setLayers (const std::list< te::map::AbstractLayerPtr > &layers)
 

Signals

void layerSelectedObjectsChanged (const te::map::AbstractLayerPtr &layer)
 

Public Member Functions

virtual void setCursor (const QCursor &cursor)
 It sets the tool cursor. More...
 
Initializer Methods

Methods related to instantiation and destruction.

 Selection (MapDisplay *display, const QCursor &cursor, const std::list< te::map::AbstractLayerPtr > &layers, QObject *parent=0)
 It constructs a selection tool associated with the given map display. More...
 
 ~Selection ()
 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...
 
MapDisplaym_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

void executeSelection (const te::map::AbstractLayerPtr &layer, const te::gm::Envelope &e)
 

Private Attributes

bool m_keepPreviousSelection
 Flag that indicates if the tool must keep the previous selection. More...
 
std::list< te::map::AbstractLayerPtrm_layers
 The layer list that will be selected. More...
 
bool m_selectionByPointing
 Flag that indicates if the selection is by pointing. More...
 
bool m_selectionStarted
 Flag that indicates if selection operation was started. More...
 

Detailed Description

This class implements a concrete tool to select layer features using an extent.

Definition at line 63 of file Selection.h.

Constructor & Destructor Documentation

te::qt::widgets::Selection::Selection ( MapDisplay display,
const QCursor &  cursor,
const std::list< te::map::AbstractLayerPtr > &  layers,
QObject *  parent = 0 
)

It constructs a selection tool associated with the given map display.

Parameters
displayThe map display associated with the tool.
cursorThe tool cursor.
layerThe layer list that will be selected.
parentThe tool's parent.
Note
The tool will NOT take the ownership of the given pointers.
te::qt::widgets::Selection::~Selection ( )

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
watchedThe watched object.
eventThe 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.

void te::qt::widgets::Selection::executeSelection ( const te::map::AbstractLayerPtr layer,
const te::gm::Envelope e 
)
private
void te::qt::widgets::Selection::layerSelectedObjectsChanged ( const te::map::AbstractLayerPtr layer)
signal

This signal is emitted when the layer selection changed.

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
eThe 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::Selection::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
eThe 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::Selection::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
eThe 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::Selection::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
eThe 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.

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

It sets the tool cursor.

Parameters
cursorThe cursor that will be used during the tool operation.
void te::qt::widgets::Selection::setLayers ( const std::list< te::map::AbstractLayerPtr > &  layers)
slot

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.

bool te::qt::widgets::Selection::m_keepPreviousSelection
private

Flag that indicates if the tool must keep the previous selection.

Definition at line 121 of file Selection.h.

std::list<te::map::AbstractLayerPtr> te::qt::widgets::Selection::m_layers
private

The layer list that will be selected.

Definition at line 119 of file Selection.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::Selection::m_selectionByPointing
private

Flag that indicates if the selection is by pointing.

Definition at line 122 of file Selection.h.

bool te::qt::widgets::Selection::m_selectionStarted
private

Flag that indicates if selection operation was started.

Definition at line 120 of file Selection.h.


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