Abstract class to represent an observer. "View" part of MVC component. All classes representing the graphics component must inherit from this class. More...

#include <ItemObserver.h>

Inheritance diagram for te::layout::ItemObserver:

Public Member Functions
virtual void	changeZoomFactor (double currentZoomFactor)
	It is called immediately by the Scene when the zoom factor is changed in the Context. More...

virtual ItemController *	getController ()
	Returns the "Controller" part of the MVC. More...

virtual Observable *	getModel ()
	Returns the "Model" part of the MVC. More...

virtual std::string	getNameClass ()
	Method that returns the class name. More...

virtual te::gm::Coord2D	getPosition ()=0
	Method that returns the position llx, lly Reimplement this function in a ItemObserver subclass to provide the item's getPosition implementation. More...

virtual te::color::RGBAColor **	getRGBAColorImage (int &w, int &h)=0
	Returns a image of the graphic component. Reimplement this function in a ItemObserver subclass to provide the item's getImage implementation. 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...

	ItemObserver (ItemController controller=0, Observable o=0)
	Constructor. 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	setPrintable (bool print)
	Modifies the state of the graphic component to be or not printable. More...

virtual void	updateObserver (ContextItem context)=0
	Reimplemented from Observer. More...

virtual	~ItemObserver ()
	Destructor. More...

Protected Member Functions
virtual void	applyRotation ()=0
	Rotates the graphic component. Reimplement this function in a ItemObserver subclass to provide the item's applyImage implementation. More...

virtual int	getZValueItem ()=0
	Return the Z value. Reimplement this function in a ItemObserver subclass to provide the item's getZValueItem implementation. More...

virtual void	setZValueItem (int z)
	The Z value decides the stacking order of drawing. More...

Protected Attributes
bool	m_canChangeGraphicOrder
	Define if item can send to back or bring to front. More...

te::layout::ItemController *	m_controller
	"Controller" part of MVC component. More...

bool	m_invertedMatrix
	true if inverted, false otherwise the matrix scene More...

te::layout::Observable *	m_model
	"Model" part of MVC component. More...

std::string	m_nameClass
	Class name. More...

bool	m_printable
	State of the graphic component to be or not printable. More...

Detailed Description

Abstract class to represent an observer. "View" part of MVC component. All classes representing the graphics component must inherit from this class.

See also: te::layout::Observer

Definition at line 52 of file ItemObserver.h.

Constructor & Destructor Documentation

te::layout::ItemObserver::ItemObserver	(	ItemController *	controller = `0`,
		Observable *	o = `0`
	)

Constructor.

Parameters

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

Definition at line 37 of file ItemObserver.cpp.

References te::layout::Observable::addObserver(), and m_model.

te::layout::ItemObserver::~ItemObserver ( )

virtual

Destructor.

Definition at line 48 of file ItemObserver.cpp.

Member Function Documentation

virtual void te::layout::ItemObserver::applyRotation ( )

protectedpure virtual

Rotates the graphic component. Reimplement this function in a ItemObserver subclass to provide the item's applyImage implementation.

Implemented in te::layout::ParentItem< T >, te::layout::ParentItem< QGraphicsTextItem >, te::layout::ParentItem< QGraphicsObject >, te::layout::ParentItem< QGraphicsProxyWidget >, and te::layout::ItemGroup.

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

virtual

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().

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

virtual

Returns the "Controller" part of the MVC.

Returns: controller

Definition at line 99 of file ItemObserver.cpp.

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

virtual

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 ( )

virtual

Method that returns the class name.

Returns: class name

Definition at line 124 of file ItemObserver.cpp.

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

virtual te::gm::Coord2D te::layout::ItemObserver::getPosition ( )

pure virtual

Method that returns the position llx, lly Reimplement this function in a ItemObserver subclass to provide the item's getPosition implementation.

Returns: coordinate

Implemented in te::layout::MapItem, te::layout::TextItem, te::layout::ParentItem< T >, te::layout::ParentItem< QGraphicsTextItem >, te::layout::ParentItem< QGraphicsObject >, te::layout::ParentItem< QGraphicsProxyWidget >, and te::layout::ItemGroup.

virtual te::color::RGBAColor** te::layout::ItemObserver::getRGBAColorImage	(	int &	w,
		int &	h
	)

pure virtual

Returns a image of the graphic component. Reimplement this function in a ItemObserver subclass to provide the item's getImage implementation.

Parameters

image	width
image	height

Returns: image

Implemented in te::layout::ParentItem< T >, te::layout::ParentItem< QGraphicsTextItem >, te::layout::ParentItem< QGraphicsObject >, te::layout::ParentItem< QGraphicsProxyWidget >, te::layout::TextItem, te::layout::MapItem, and te::layout::ItemGroup.

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

virtual int te::layout::ItemObserver::getZValueItem ( )

protectedpure virtual

Return the Z value. Reimplement this function in a ItemObserver subclass to provide the item's getZValueItem implementation.

Returns: Z value

Implemented in te::layout::ParentItem< T >, te::layout::ParentItem< QGraphicsTextItem >, te::layout::ParentItem< QGraphicsObject >, te::layout::ParentItem< QGraphicsProxyWidget >, and te::layout::ItemGroup.

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

virtual

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 ( )

virtual

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 ( )

virtual

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().

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

virtual

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 )

virtual

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 )

virtual

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 )

virtual

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.

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

virtual

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.

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

protectedvirtual

The Z value decides the stacking order of drawing.

Parameters

drawing order

Definition at line 109 of file ItemObserver.cpp.

virtual void te::layout::ItemObserver::updateObserver ( ContextItem context )

pure virtual

Reimplemented from Observer.

Implements te::layout::Observer.

Implemented in te::layout::ParentItem< T >, te::layout::ParentItem< QGraphicsTextItem >, te::layout::ParentItem< QGraphicsObject >, te::layout::ParentItem< QGraphicsProxyWidget >, te::layout::MapItem, te::layout::TextItem, te::layout::LegendItem, te::layout::ItemGroup, te::layout::TitleItem, and te::layout::LineItem.

Member Data Documentation

bool te::layout::ItemObserver::m_canChangeGraphicOrder

protected

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().

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

protected

"Controller" part of MVC component.

Definition at line 197 of file ItemObserver.h.

bool te::layout::ItemObserver::m_invertedMatrix

protected

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

protected

"Model" part of MVC component.

Definition at line 198 of file ItemObserver.h.

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

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

protected

Class name.

Definition at line 201 of file ItemObserver.h.

bool te::layout::ItemObserver::m_printable

protected

State of the graphic component to be or not printable.

Definition at line 199 of file ItemObserver.h.

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

C:/TL5_2015_release/terralib5/src/terralib/layout/core/pattern/mvc/ItemObserver.h
C:/TL5_2015_release/terralib5/src/terralib/layout/core/pattern/mvc/ItemObserver.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation