te::layout::LegendItem Class Reference

Class that represents a graphic legend of a map. Its coordinate system is the same of scene (millimeters). This is also the son of ItemObserver and ObjectItem, so it can become observer of a model (Observable). More...

#include <LegendItem.h>

Inheritance diagram for te::layout::LegendItem:

Public Member Functions
virtual QRectF	boundingRect () const
virtual void	changeZoomFactor (double currentZoomFactor)
	It is called immediately by the Scene when the zoom factor is changed in the Context. More...
virtual bool	contains (const QPointF &point) const
virtual ItemController *	getController ()
	Returns the "Controller" part of the MVC. More...
virtual QImage	getImage ()
	Reimplemented from ItemObserver. More...
virtual Observable *	getModel ()
	Returns the "Model" part of the MVC. More...
virtual std::string	getNameClass ()
	Method that returns the class name. More...
virtual QPixmap	getPixmap ()
virtual te::gm::Coord2D	getPosition ()
	Reimplemented from ItemObserver. More...
virtual te::color::RGBAColor **	getRGBAColorImage (int &w, int &h)
	Reimplemented from ItemObserver. More...
virtual bool	isCanChangeGraphicOrder ()
	Returns whether the graphic component to be or not send to back or bring to front. More...
virtual bool	isInvertedMatrix ()
	Returns whether the graph component has the inverted matrix, otherwise the matrix scene. More...
virtual bool	isPrintable ()
	Returns whether the graphic component is printable. More...
virtual QVariant	itemChange (GraphicsItemChange change, const QVariant &value)
	Reimplemented from QGraphicsItem. More...
	LegendItem (ItemController *controller, Observable *o)
	Constructor. More...
virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget=0)
	Mandatory implementation from QGraphicsObject. More...
virtual void	recalculateBoundingRect ()
	The default implementation does nothing. More...
virtual void	redraw (bool bRefresh=true)
	Redraws the graphic component. More...
virtual void	refresh (bool pos=true)
	Updated model state. More...
virtual void	setCanChangeGraphicOrder (bool canChange)
	Change the state of the graphic component to be or not send to back or bring to front. More...
virtual void	setPixmap (const QPixmap &pixmap)
virtual void	setPrintable (bool print)
	Modifies the state of the graphic component to be or not printable. More...
virtual void	setRect (QRectF rect)
void	setZValue (qreal z)
	The Z value decides the stacking order of drawing. More...
virtual void	updateObserver (ContextItem context)
	Reimplemented from ObjectItem. More...
virtual	~LegendItem ()
	Destructor. More...

Protected Member Functions
virtual void	applyRotation ()
	Reimplemented from ItemObserver. More...
virtual QPixmap	calculateNewPixmap (const double &x, const double &y)
virtual bool	checkTouchesCorner (const double &x, const double &y)
virtual te::gm::Envelope	createNewBoxInCoordScene (const double &x, const double &y)
virtual void	createResizePixmap ()
virtual void	drawBackground (QPainter *painter)
virtual void	drawBorder (QPainter *painter)
virtual void	drawSelection (QPainter *painter)
virtual void	drawText (QPointF point, QPainter *painter, std::string text)
	Draw a text. Converts boundingRect item coordinates (local coordinates) in pixel coordinates (screen coordinates) of the current device. More...
virtual int	getZValueItem ()
	Reimplemented from ItemObserver. More...
virtual void	hoverEnterEvent (QGraphicsSceneHoverEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual void	hoverLeaveEvent (QGraphicsSceneHoverEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual void	hoverMoveEvent (QGraphicsSceneHoverEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual QVariant	itemChange (QGraphicsItem::GraphicsItemChange change, const QVariant &value)
	Reimplemented from QGraphicsItem. More...
virtual void	mousePressEvent (QGraphicsSceneMouseEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
	Reimplemented from QGraphicsItem. More...
virtual void	setZValueItem (int z)
	The Z value decides the stacking order of drawing. More...

Protected Attributes
te::gm::Envelope	m_boxCopy
	box with resize More...
bool	m_canChangeGraphicOrder
	Define if item can send to back or bring to front. More...
QPixmap	m_clonePixmap
te::layout::ItemController *	m_controller
	"Controller" part of MVC component. More...
LayoutAlign	m_enumSides
QPointF	m_finalCoord
QPointF	m_initialCoord
bool	m_invertedMatrix
	true if inverted, false otherwise the matrix scene More...
te::layout::Observable *	m_model
	"Model" part of MVC component. More...
bool	m_mousePressedAlt
	mouse and active alt key More...
std::string	m_nameClass
	Class name. More...
QPixmap	m_pixmap
bool	m_printable
	State of the graphic component to be or not printable. More...
QRectF	m_rect
bool	m_resizeMode
	pixmap to perform the resize is already built More...
bool	m_toResizeItem
	pixmap to perform the resize is not yet built More...

Private Attributes
bool	m_move

Detailed Description

Class that represents a graphic legend of a map. Its coordinate system is the same of scene (millimeters). This is also the son of ItemObserver and ObjectItem, so it can become observer of a model (Observable).

See also

te::layout::ObjectItem

Definition at line 54 of file LegendItem.h.

Constructor & Destructor Documentation

te::layout::LegendItem::LegendItem	(	ItemController *	controller,
		Observable *	o
	)

Constructor.

Parameters

controller	"Controller" part of MVC component
o	"Model" part of MVC component

Definition at line 63 of file LegendItem.cpp.

References te::layout::ItemObserver::m_nameClass.

te::layout::LegendItem::~LegendItem ( )

virtual

Destructor.

Definition at line 75 of file LegendItem.cpp.

Member Function Documentation

virtual void te::layout::ParentItem< QGraphicsObject >::applyRotation ( )

protectedvirtualinherited

Reimplemented from ItemObserver.

Implements te::layout::ItemObserver.

virtual QRectF te::layout::ParentItem< QGraphicsObject >::boundingRect ( ) const

virtualinherited

Reimplemented in te::layout::GridMapItem.

virtual QPixmap te::layout::ParentItem< QGraphicsObject >::calculateNewPixmap ( const double &  x, const double &  y  )

protectedvirtualinherited

void te::layout::ItemObserver::changeZoomFactor ( double  currentZoomFactor )

virtualinherited

It is called immediately by the Scene when the zoom factor is changed in the Context.

Parameters

currentZoomFactor

current zoom factor of the layout module

Reimplemented in te::layout::MapItem.

Definition at line 134 of file ItemObserver.cpp.

Referenced by te::layout::Scene::onChangeZoomFactor().

virtual bool te::layout::ParentItem< QGraphicsObject >::checkTouchesCorner ( const double &  x, const double &  y  )

protectedvirtualinherited

virtual bool te::layout::ParentItem< QGraphicsObject >::contains ( const QPointF &  point ) const

virtualinherited

virtual te::gm::Envelope te::layout::ParentItem< QGraphicsObject >::createNewBoxInCoordScene ( const double &  x, const double &  y  )

protectedvirtualinherited

virtual void te::layout::ParentItem< QGraphicsObject >::createResizePixmap ( )

protectedvirtualinherited

virtual void te::layout::ParentItem< QGraphicsObject >::drawBackground ( QPainter *  painter )

protectedvirtualinherited

virtual void te::layout::ParentItem< QGraphicsObject >::drawBorder ( QPainter *  painter )

protectedvirtualinherited

virtual void te::layout::ParentItem< QGraphicsObject >::drawSelection ( QPainter *  painter )

protectedvirtualinherited

virtual void te::layout::ParentItem< QGraphicsObject >::drawText ( QPointF  point, QPainter *  painter, std::string  text  )

protectedvirtualinherited

Draw a text. Converts boundingRect item coordinates (local coordinates) in pixel coordinates (screen coordinates) of the current device.

Parameters

point	initial text coordinate (local coordinates from boundingRect)
painter	low-level painting on widgets and other paint devices
text

te::layout::ItemController * te::layout::ItemObserver::getController ( )

virtualinherited

Returns the "Controller" part of the MVC.

Returns

controller

Definition at line 99 of file ItemObserver.cpp.

virtual QImage te::layout::ParentItem< QGraphicsObject >::getImage ( )

virtualinherited

Reimplemented from ItemObserver.

te::layout::Observable * te::layout::ItemObserver::getModel ( )

virtualinherited

Returns the "Model" part of the MVC.

Returns

model

Definition at line 104 of file ItemObserver.cpp.

Referenced by te::layout::BuildGraphicsItem::addChild(), te::layout::ItemModelObservable::addChildren(), te::layout::VisitorUtils::changeMapVisitable(), te::layout::PropertiesOutside::changeMapVisitable(), te::layout::MenuBuilder::changePropertyValue(), te::layout::ChangePropertyCommand::checkItem(), te::layout::ItemUtils::countType(), te::layout::AddCommand::createCommandString(), te::layout::MoveCommand::createCommandString(), te::layout::ChangePropertyCommand::createCommandString(), te::layout::ItemUtils::createLegendChildAsObject(), te::layout::ObjectInspectorOutside::createProperty(), te::layout::ItemUtils::createTextItemFromObject(), te::layout::ItemUtils::createTextMapAsObject(), te::layout::Scene::deleteItems(), te::layout::PropertiesUtils::equalsHashCode(), te::layout::Scene::exportItemsToImage(), te::layout::PropertiesUtils::getAllProperties(), te::layout::Scene::getItemsProperties(), te::layout::ItemUtils::getMapItem(), te::layout::PropertiesOutside::getMapModel(), te::layout::ObjectInspectorOutside::hasMoveItemGroup(), te::layout::PropertiesUtils::intersection(), te::layout::GridMapItem::itemChange(), te::layout::ParentItem< T >::itemChange(), te::layout::ObjectInspectorOutside::itemsInspector(), te::layout::ItemUtils::mapNameList(), te::layout::ItemUtils::maxTypeId(), te::layout::View::mousePressEvent(), te::layout::Scene::removeSelectedItems(), te::layout::PropertiesUtils::sameProperties(), te::layout::Scene::selectItem(), te::layout::ObjectInspectorOutside::selectItems(), te::layout::PropertiesOutside::sendPropertyToSelectedItem(), and te::layout::PropertiesOutside::sendPropertyToSelectedItems().

std::string te::layout::ItemObserver::getNameClass ( )

virtualinherited

Method that returns the class name.

Returns

class name

Definition at line 124 of file ItemObserver.cpp.

Referenced by te::layout::ObjectInspectorOutside::createProperty().

virtual QPixmap te::layout::ParentItem< QGraphicsObject >::getPixmap ( )

virtualinherited

virtual te::gm::Coord2D te::layout::ParentItem< QGraphicsObject >::getPosition ( )

virtualinherited

Reimplemented from ItemObserver.

Implements te::layout::ItemObserver.

virtual te::color::RGBAColor** te::layout::ParentItem< QGraphicsObject >::getRGBAColorImage ( int &  w, int &  h  )

virtualinherited

Reimplemented from ItemObserver.

Implements te::layout::ItemObserver.

virtual int te::layout::ParentItem< QGraphicsObject >::getZValueItem ( )

protectedvirtualinherited

Reimplemented from ItemObserver.

Implements te::layout::ItemObserver.

virtual void te::layout::ParentItem< QGraphicsObject >::hoverEnterEvent ( QGraphicsSceneHoverEvent *  event )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

virtual void te::layout::ParentItem< QGraphicsObject >::hoverLeaveEvent ( QGraphicsSceneHoverEvent *  event )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

virtual void te::layout::ParentItem< QGraphicsObject >::hoverMoveEvent ( QGraphicsSceneHoverEvent *  event )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

bool te::layout::ItemObserver::isCanChangeGraphicOrder ( )

virtualinherited

Returns whether the graphic component to be or not send to back or bring to front.

Returns

true if send to back or bring to front, false otherwise

Definition at line 119 of file ItemObserver.cpp.

Referenced by te::layout::AlignItems::bringToFront(), te::layout::Scene::createItem(), and te::layout::AlignItems::sendToBack().

bool te::layout::ItemObserver::isInvertedMatrix ( )

virtualinherited

Returns whether the graph component has the inverted matrix, otherwise the matrix scene.

Returns

true if inverted, false otherwise

Definition at line 129 of file ItemObserver.cpp.

Referenced by te::layout::Scene::insertItem(), and te::layout::View::mousePressEvent().

bool te::layout::ItemObserver::isPrintable ( )

virtualinherited

Returns whether the graphic component is printable.

Returns

true if printable, false otherwise

Definition at line 94 of file ItemObserver.cpp.

Referenced by te::layout::Scene::getItemsProperties(), and te::layout::Scene::redrawItems().

QVariant te::layout::LegendItem::itemChange ( GraphicsItemChange  change, const QVariant &  value  )

virtual

Reimplemented from QGraphicsItem.

Definition at line 274 of file LegendItem.cpp.

virtual QVariant te::layout::ParentItem< QGraphicsObject >::itemChange ( QGraphicsItem::GraphicsItemChange  change, const QVariant &  value  )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

Reimplemented in te::layout::GridMapItem.

void te::layout::LegendItem::mouseMoveEvent ( QGraphicsSceneMouseEvent *  event )

virtual

Reimplemented from QGraphicsItem.

Reimplemented from te::layout::ParentItem< QGraphicsObject >.

Definition at line 295 of file LegendItem.cpp.

virtual void te::layout::ParentItem< QGraphicsObject >::mousePressEvent ( QGraphicsSceneMouseEvent *  event )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

Reimplemented in te::layout::BalloonItem.

virtual void te::layout::ParentItem< QGraphicsObject >::mouseReleaseEvent ( QGraphicsSceneMouseEvent *  event )

protectedvirtualinherited

Reimplemented from QGraphicsItem.

Reimplemented in te::layout::BalloonItem.

void te::layout::LegendItem::paint ( QPainter *  painter, const QStyleOptionGraphicsItem *  option, QWidget *  widget = 0  )

virtual

Mandatory implementation from QGraphicsObject.

Reimplemented from te::layout::ParentItem< QGraphicsObject >.

Reimplemented in te::layout::LegendChildItem.

Definition at line 103 of file LegendItem.cpp.

References te::map::CanvasConfigurer::config(), te::color::RGBAColor::getAlpha(), te::color::RGBAColor::getBlue(), te::layout::LegendModel::getBorderDisplacement(), te::layout::Context::getCanvas(), te::layout::LegendModel::getDisplacementBetweenSymbolAndText(), te::layout::LegendModel::getDisplacementBetweenSymbols(), te::layout::LegendModel::getDisplacementBetweenTitleAndSymbols(), te::layout::Font::getFamily(), te::layout::LegendModel::getFont(), te::layout::LegendModel::getFontColor(), te::color::RGBAColor::getGreen(), te::map::Grouping::getGroupingItems(), te::common::Singleton< Context >::getInstance(), te::layout::LegendModel::getLayer(), te::map::GroupingItem::getLowerLimit(), te::layout::Font::getPointSize(), te::map::Grouping::getPropertyName(), te::color::RGBAColor::getRed(), te::map::GroupingItem::getSymbolizers(), te::layout::LegendModel::getSymbolSize(), te::map::Grouping::getType(), te::se::Symbolizer::getType(), te::map::GroupingItem::getUpperLimit(), te::layout::Context::getUtils(), te::map::GroupingItem::getValue(), te::layout::Font::isStrikeout(), te::layout::Font::isUnderline(), te::map::Grouping::isVisible(), te::gm::LineStringType, te::layout::Utils::mm2pixel(), te::gm::PolygonType, te::qt::widgets::Canvas::setMatrix(), te::gm::LineString::setPoint(), te::gm::CurvePolygon::setRingN(), te::map::Canvas::setTextColor(), te::map::Canvas::setTextPointSize(), te::map::Canvas::setTextStrikeOut(), te::map::Canvas::setTextUnderline(), te::layout::Utils::textBoundingBox(), and te::map::UNIQUE_VALUE.

void te::layout::ItemObserver::recalculateBoundingRect ( )

virtualinherited

The default implementation does nothing.

Reimplemented in te::layout::MapItem, and te::layout::GridMapItem.

Definition at line 139 of file ItemObserver.cpp.

void te::layout::ItemObserver::redraw ( bool  bRefresh = true )

virtualinherited

Redraws the graphic component.

Definition at line 54 of file ItemObserver.cpp.

References te::layout::ContextItem::setChangePos(), and te::layout::ContextItem::setPos().

Referenced by te::layout::BuildGraphicsItem::afterBuild(), te::layout::MenuBuilder::changePropertyValue(), te::layout::ChangePropertyCommand::checkItem(), te::layout::View::createItemGroup(), te::layout::ItemUtils::createLegendChildAsObject(), te::layout::VisualizationArea::createPaper(), te::layout::Scene::redrawItems(), te::layout::Scene::redrawSelectionMap(), te::layout::PropertiesOutside::sendPropertyToSelectedItem(), and te::layout::PropertiesOutside::sendPropertyToSelectedItems().

void te::layout::ItemObserver::refresh ( bool  pos = true )

virtualinherited

Updated model state.

Parameters

true	if refresh the current position, false otherwise

Definition at line 78 of file ItemObserver.cpp.

References te::gm::Coord2D::x, and te::gm::Coord2D::y.

Referenced by te::layout::ItemController::contains(), te::layout::Scene::insertItem(), and te::layout::Scene::updateSelectedItemsPositions().

void te::layout::ItemObserver::setCanChangeGraphicOrder ( bool  canChange )

virtualinherited

Change the state of the graphic component to be or not send to back or bring to front.

Parameters

canChange

true if send to back or bring to front, false otherwise

Definition at line 114 of file ItemObserver.cpp.

virtual void te::layout::ParentItem< QGraphicsObject >::setPixmap ( const QPixmap &  pixmap )

virtualinherited

void te::layout::ItemObserver::setPrintable ( bool  print )

virtualinherited

Modifies the state of the graphic component to be or not printable.

Parameters

print

true if printable, false otherwise

Definition at line 89 of file ItemObserver.cpp.

virtual void te::layout::ParentItem< QGraphicsObject >::setRect ( QRectF  rect )

virtualinherited

void te::layout::ParentItem< QGraphicsObject >::setZValue ( qreal  z )

inherited

The Z value decides the stacking order of drawing.

Parameters

drawing

order

void te::layout::ItemObserver::setZValueItem ( int  z )

protectedvirtualinherited

The Z value decides the stacking order of drawing.

Parameters

drawing

order

Definition at line 109 of file ItemObserver.cpp.

void te::layout::LegendItem::updateObserver ( ContextItem  context )

virtual

Reimplemented from ObjectItem.

Reimplemented from te::layout::ParentItem< QGraphicsObject >.

Definition at line 80 of file LegendItem.cpp.

References te::gm::Envelope::getHeight(), te::layout::ContextItem::getUtils(), te::gm::Envelope::getWidth(), te::gm::Envelope::isValid(), and te::layout::Utils::mm2pixel().

Member Data Documentation

te::gm::Envelope te::layout::ParentItem< QGraphicsObject >::m_boxCopy

protectedinherited

box with resize

Definition at line 223 of file ParentItem.h.

bool te::layout::ItemObserver::m_canChangeGraphicOrder

protectedinherited

Define if item can send to back or bring to front.

Definition at line 200 of file ItemObserver.h.

Referenced by te::layout::PaperItem::PaperItem().

QPixmap te::layout::ParentItem< QGraphicsObject >::m_clonePixmap

protectedinherited

Definition at line 224 of file ParentItem.h.

te::layout::ItemController* te::layout::ItemObserver::m_controller

protectedinherited

"Controller" part of MVC component.

Definition at line 197 of file ItemObserver.h.

LayoutAlign te::layout::ParentItem< QGraphicsObject >::m_enumSides

protectedinherited

Definition at line 229 of file ParentItem.h.

QPointF te::layout::ParentItem< QGraphicsObject >::m_finalCoord

protectedinherited

Definition at line 227 of file ParentItem.h.

QPointF te::layout::ParentItem< QGraphicsObject >::m_initialCoord

protectedinherited

Definition at line 226 of file ParentItem.h.

bool te::layout::ItemObserver::m_invertedMatrix

protectedinherited

true if inverted, false otherwise the matrix scene

Definition at line 202 of file ItemObserver.h.

Referenced by te::layout::BarCodeItem::BarCodeItem(), and te::layout::ParentItem< T >::ParentItem().

te::layout::Observable* te::layout::ItemObserver::m_model

protectedinherited

"Model" part of MVC component.

Definition at line 198 of file ItemObserver.h.

Referenced by te::layout::BarCodeItem::BarCodeItem(), te::layout::ItemObserver::ItemObserver(), te::layout::MapItem::MapItem(), and te::layout::ParentItem< T >::ParentItem().

bool te::layout::ParentItem< QGraphicsObject >::m_mousePressedAlt

protectedinherited

mouse and active alt key

Definition at line 225 of file ParentItem.h.

bool te::layout::LegendItem::m_move

private

Definition at line 93 of file LegendItem.h.

std::string te::layout::ItemObserver::m_nameClass

protectedinherited

Class name.

Definition at line 201 of file ItemObserver.h.

Referenced by te::layout::ArrowItem::ArrowItem(), te::layout::BalloonItem::BalloonItem(), te::layout::BarCodeItem::BarCodeItem(), te::layout::EllipseItem::EllipseItem(), te::layout::GridGeodesicItem::GridGeodesicItem(), te::layout::GridMapItem::GridMapItem(), te::layout::GridPlanarItem::GridPlanarItem(), te::layout::ImageItem::ImageItem(), te::layout::ItemGroup::ItemGroup(), te::layout::LegendChildItem::LegendChildItem(), LegendItem(), te::layout::LineItem::LineItem(), te::layout::MapItem::MapItem(), te::layout::NorthItem::NorthItem(), te::layout::PaperItem::PaperItem(), te::layout::PointItem::PointItem(), te::layout::PolygonItem::PolygonItem(), te::layout::RectangleItem::RectangleItem(), te::layout::ScaleItem::ScaleItem(), and te::layout::TextItem::TextItem().

QPixmap te::layout::ParentItem< QGraphicsObject >::m_pixmap

protectedinherited

Definition at line 219 of file ParentItem.h.

bool te::layout::ItemObserver::m_printable

protectedinherited

State of the graphic component to be or not printable.

Definition at line 199 of file ItemObserver.h.

QRectF te::layout::ParentItem< QGraphicsObject >::m_rect

protectedinherited

Definition at line 220 of file ParentItem.h.

bool te::layout::ParentItem< QGraphicsObject >::m_resizeMode

protectedinherited

pixmap to perform the resize is already built

Definition at line 230 of file ParentItem.h.

bool te::layout::ParentItem< QGraphicsObject >::m_toResizeItem

protectedinherited

pixmap to perform the resize is not yet built

Definition at line 228 of file ParentItem.h.

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

• C:/TL5_2015_release/terralib5/src/terralib/layout/qt/item/LegendItem.h
• C:/TL5_2015_release/terralib5/src/terralib/layout/qt/item/LegendItem.cpp