Class representing the view. This view is child of QGraphicsView, part of Graphics View Framework. The View object is a widget where the items in the scene are drawn. It is responsible for presentation and interaction between the screen events and the scene. Manages interactive functions and intercepts all mouse or keyboard events. The coordinate system of this representation is pixel and your point 0.0 is in the top left(Screen coordinate system). The default settings of the layout module are in the object Context (singleton). More...

#include <View.h>

Inheritance diagram for te::layout::View:

Public Slots
virtual void	onChangeConfig ()
	Notifies View object that some configuration was modified in the Page Settings Window. More...

virtual void	onMainMenuChangeContext (bool change)
	Notifies View object that some action on the Menu has been thrown. More...

virtual void	onSelectionChanged ()
	Notifies View object that the selection of objects in the scene changed. More...

virtual void	onSelectionItem (std::string name)

virtual void	onSystematicApply (double scale, SystematicScaleType type)

virtual void	onToolbarChangeContext (bool change)
	Notifies View object that some action on the toolbar has been thrown. More...

Signals
void	changeContext ()
	This signal is emitted when context change. More...

void	changeSceneCoordMouse (QPointF pos)
	This signal is emitted when the mouse move changed. More...

void	changeZoom (double currentFactor)
	This signal is emitted when View object changes the zoom factor internally. More...

void	closeView ()
	This signal is emitted when close View object. More...

void	hideView ()
	This signal is emitted when hide View object. More...

void	reloadProperties ()
	This signal is emitted when selection change and mouse release. More...

void	showView ()
	This signal is emitted when show View object. More...

Public Member Functions
virtual void	addZoomFactor (double factor, std::string text)
	Method that adds new zoom factor. Ex.: 0.5 - 50%. More...

virtual void	changeZoomFactor (double currentZoom)
	Method that change rulers visibility state. More...

virtual void	clearZoomFactors ()
	Method that clears the zoom factor list. More...

virtual void	closeOutsideWindows ()
	Close all windows that have been instantiated by this View. Ex .: Page Settings. More...

virtual void	config ()
	Initialization method that configures the View and sets the transformation matrix of the scene in the View object. More...

virtual QImage	createImage ()
	Create snapshot of the View current state. More...

virtual void	exportToPDF ()
	Method that sets View object for the Print function. More...

virtual bool	isVisibleRulers ()
	Method that return rulers visibility state. More...

virtual double	nextFactor (double currentFactor)
	Method that returns the next zoom factor in the list. More...

virtual void	pan ()
	Method that sets View object for the Pan function. More...

virtual double	previousFactor (double currentFactor)
	Method that returns the previous zoom factor in the list. More...

virtual void	print ()
	Method that sets View object for the Print function. More...

virtual void	recompose ()
	Reset to initial configuration made in the config() method. Reset to default zoom factor. More...

virtual void	resetView ()
	Reset to initial configuration made in the config() method. More...

virtual void	setVisibleRulers (bool visible)
	Method that change rulers visibility state. More...

	View (QWidget widget=(QWidget ) 0)
	Constructor. More...

virtual void	zoomArea ()
	Method that sets View object for the Zoom Area function. More...

virtual void	zoomOut ()
	Method that sets View object for the Zoom Out function. More...

virtual void	zoomPercentage ()
	Method that applies current zoom defined in the Context. More...

virtual	~View ()
	Destructor. More...

Protected Member Functions
virtual void	closeEvent (QCloseEvent *event)
	Reimplemented from QGraphicsView. More...

virtual void	contextMenuEvent (QContextMenuEvent *event)
	Reimplemented from QGraphicsView. More...

virtual QCursor	createCursor (std::string pathIcon)

virtual void	createItemGroup ()
	Groups selected objects. More...

virtual void	destroyItemGroup ()
	Method that delete Grouping object selected, but the individual objects continue to exist. More...

virtual void	drawForeground (QPainter *painter, const QRectF &rect)
	Reimplemented from QGraphicsView. More...

virtual void	exportItemsToImage ()
	Saves each item in the scene as image. Ex .: .png. More...

virtual bool	exportProperties (EnumType *type)
	Method that exports all the objects in the scene to a template. Ex.: JSON. More...

virtual void	hideEvent (QHideEvent *event)
	Reimplemented from QGraphicsView. More...

virtual bool	importTemplate (EnumType *type)
	Method that import a template and build all objects. Ex.: JSON. More...

virtual bool	isExceededLimit (double currentScale, double factor, double oldFactor)

virtual void	keyPressEvent (QKeyEvent *keyEvent)
	Reimplemented from QGraphicsView. More...

virtual void	mouseMoveEvent (QMouseEvent *event)
	Reimplemented from QGraphicsView. More...

virtual void	mousePressEvent (QMouseEvent *event)
	Reimplemented from QGraphicsView. Call method createItem() of the scene. More...

virtual void	mouseReleaseEvent (QMouseEvent *event)
	Reimplemented from QGraphicsView. More...

virtual void	outsideAreaChangeContext (bool change)
	Responsible method for verifying changes made in Context outside the View object and call corresponding actions. Ex.: Action Pan called in toolbar changed Context to Pan mode, then View object call method to do it. More...

virtual void	resetDefaultConfig ()

virtual void	resizeEvent (QResizeEvent *event)
	Reimplemented from QGraphicsView. More...

virtual void	showEvent (QShowEvent *event)
	Reimplemented from QGraphicsView. More...

virtual void	showPageSetup ()
	Method that instantiates and shows the Page Setup window. More...

virtual void	showSystematicScale ()

virtual void	wheelEvent (QWheelEvent *event)
	Reimplemented from QGraphicsView. More...

Protected Attributes
te::gm::Coord2D	m_coordSystematic

AbstractViewTool *	m_currentTool

bool	m_flag

double	m_height

HorizontalRuler *	m_horizontalRuler

bool	m_isMoving

double	m_maxZoomLimit

MenuBuilder *	m_menuBuilder

double	m_minZoomLimit

te::layout::MovingItemGroup *	m_movingItemGroup

EnumType *	m_oldMode

PageSetupOutside *	m_pageSetupOutside

bool	m_selectionChange

SystematicScaleOutside *	m_systematicOutside

bool	m_updateItemPos

VerticalRuler *	m_verticalRuler

bool	m_visibleRulers
	rulers visibility state More...

VisualizationArea *	m_visualizationArea

WaitView *	m_wait

double	m_width

std::map< double, std::string >	m_zoomFactors
	zoom factor list More...

Detailed Description

Class representing the view. This view is child of QGraphicsView, part of Graphics View Framework. The View object is a widget where the items in the scene are drawn. It is responsible for presentation and interaction between the screen events and the scene. Manages interactive functions and intercepts all mouse or keyboard events. The coordinate system of this representation is pixel and your point 0.0 is in the top left(Screen coordinate system). The default settings of the layout module are in the object Context (singleton).

See also: te::layout::AbstractView

Definition at line 89 of file View.h.

Constructor & Destructor Documentation

te::layout::View::View ( QWidget * widget = (QWidget*)0 )

Constructor.

Definition at line 61 of file View.cpp.

References te::common::Singleton< Enums >::getInstance(), m_horizontalRuler, m_oldMode, m_verticalRuler, and m_wait.

te::layout::View::~View ( )

virtual

Destructor.

Definition at line 92 of file View.cpp.

Member Function Documentation

void te::layout::AbstractView::addZoomFactor	(	double	factor,
		std::string	text
	)

virtualinherited

Method that adds new zoom factor. Ex.: 0.5 - 50%.

Parameters

factor	factor
text	percentage

Definition at line 53 of file AbstractView.cpp.

void te::layout::View::changeContext ( )

signal

This signal is emitted when context change.

void te::layout::View::changeSceneCoordMouse ( QPointF pos )

signal

This signal is emitted when the mouse move changed.

Parameters

pos	current position

void te::layout::View::changeZoom ( double currentFactor )

signal

This signal is emitted when View object changes the zoom factor internally.

void te::layout::View::changeZoomFactor ( double currentZoom )

virtual

Method that change rulers visibility state.

Parameters

visible visibility state

Definition at line 1076 of file View.cpp.

References te::common::Singleton< Context >::getInstance(), te::layout::Context::getZoomFactor(), te::layout::Context::setOldZoomFactor(), and te::layout::Context::setZoomFactor().

void te::layout::AbstractView::clearZoomFactors ( )

virtualinherited

Method that clears the zoom factor list.

Definition at line 58 of file AbstractView.cpp.

void te::layout::View::closeEvent ( QCloseEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 665 of file View.cpp.

void te::layout::View::closeOutsideWindows ( )

virtual

Close all windows that have been instantiated by this View. Ex .: Page Settings.

Definition at line 724 of file View.cpp.

void te::layout::View::closeView ( )

signal

This signal is emitted when close View object.

void te::layout::View::config ( )

virtual

Initialization method that configures the View and sets the transformation matrix of the scene in the View object.

Implements te::layout::AbstractView.

Definition at line 375 of file View.cpp.

References te::layout::Context::getDefaultZoomFactor(), te::common::Singleton< Context >::getInstance(), te::layout::AbstractScene::getSceneBox(), te::layout::Scene::init(), te::gm::Envelope::m_llx, te::gm::Envelope::m_ury, and te::layout::Scene::sceneTransform().

void te::layout::View::contextMenuEvent ( QContextMenuEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 742 of file View.cpp.

References te::common::Singleton< Context >::getInstance(), te::layout::Context::getItemUtils(), and te::layout::ItemUtils::intersectionSelectionItem().

QCursor te::layout::View::createCursor ( std::string pathIcon )

protectedvirtual

Definition at line 790 of file View.cpp.

QImage te::layout::View::createImage ( )

virtual

Create snapshot of the View current state.

Returns: image

Definition at line 770 of file View.cpp.

References te::layout::AbstractScene::getSceneBox(), te::gm::Envelope::m_llx, te::gm::Envelope::m_lly, te::gm::Envelope::m_urx, and te::gm::Envelope::m_ury.

void te::layout::View::createItemGroup ( )

protectedvirtual

Groups selected objects.

Definition at line 437 of file View.cpp.

References te::layout::Scene::createItemGroup(), and te::layout::ItemObserver::redraw().

void te::layout::View::destroyItemGroup ( )

protectedvirtual

Method that delete Grouping object selected, but the individual objects continue to exist.

Definition at line 464 of file View.cpp.

References te::layout::Scene::destroyItemGroup().

void te::layout::View::drawForeground	(	QPainter *	painter,
		const QRectF &	rect
	)

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 943 of file View.cpp.

References te::map::SolidLine.

void te::layout::View::exportItemsToImage ( )

protectedvirtual

Saves each item in the scene as image. Ex .: .png.

Definition at line 1043 of file View.cpp.

References te::layout::Scene::exportItemsToImage().

bool te::layout::View::exportProperties ( EnumType * type )

protectedvirtual

Method that exports all the objects in the scene to a template. Ex.: JSON.

Parameters

type	type of template. Ex .: JSON type

Returns: true if exported, false otherwise

Definition at line 980 of file View.cpp.

References te::layout::Scene::exportPropertiesToTemplate().

void te::layout::View::exportToPDF ( )

virtual

Method that sets View object for the Print function.

Definition at line 908 of file View.cpp.

References te::layout::PrintScene::exportToPDF(), and te::layout::Scene::getPrintScene().

void te::layout::View::hideEvent ( QHideEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 659 of file View.cpp.

void te::layout::View::hideView ( )

signal

This signal is emitted when hide View object.

bool te::layout::View::importTemplate ( EnumType * type )

protectedvirtual

Method that import a template and build all objects. Ex.: JSON.

Returns: true if exported, false otherwise

Definition at line 1018 of file View.cpp.

References te::layout::Scene::buildTemplate().

bool te::layout::View::isExceededLimit	(	double	currentScale,
		double	factor,
		double	oldFactor
	)

protectedvirtual

Definition at line 925 of file View.cpp.

bool te::layout::AbstractView::isVisibleRulers ( )

virtualinherited

Method that return rulers visibility state.

Returns: true if visible, false otherwise

Definition at line 43 of file AbstractView.cpp.

void te::layout::View::keyPressEvent ( QKeyEvent * keyEvent )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 326 of file View.cpp.

References te::layout::Enums::getEnumModeType(), te::common::Singleton< Enums >::getInstance(), te::common::Singleton< Context >::getInstance(), te::layout::EnumModeType::getModeNone(), te::layout::EnumModeType::getModePrinter(), te::layout::Scene::removeSelectedItems(), and te::layout::Context::setMode().

void te::layout::View::mouseMoveEvent ( QMouseEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 210 of file View.cpp.

References te::common::Singleton< Context >::getInstance(), and te::layout::Context::getMode().

void te::layout::View::mousePressEvent ( QMouseEvent * event )

protectedvirtual

Reimplemented from QGraphicsView. Call method createItem() of the scene.

Definition at line 125 of file View.cpp.

References EnumCreate, te::layout::Enums::getEnumModeType(), te::common::Singleton< Context >::getInstance(), te::common::Singleton< Enums >::getInstance(), te::layout::Context::getItem(), te::layout::Context::getMode(), te::layout::EnumModeType::getModeCoordWait(), te::layout::ItemObserver::getModel(), te::layout::EnumModeType::getModeNone(), te::layout::EnumType::getType(), te::layout::ItemObserver::isInvertedMatrix(), te::layout::LineModel::setCoords(), te::layout::Context::setItem(), and te::layout::Context::setWait().

void te::layout::View::mouseReleaseEvent ( QMouseEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 244 of file View.cpp.

References te::layout::Scene::destroyItemGroup(), te::layout::Scene::selectItems(), and te::layout::Scene::updateSelectedItemsPositions().

double te::layout::AbstractView::nextFactor ( double currentFactor )

virtualinherited

Method that returns the next zoom factor in the list.

Parameters

currentFactor current factor

Definition at line 63 of file AbstractView.cpp.

void te::layout::View::onChangeConfig ( )

virtualslot

Notifies View object that some configuration was modified in the Page Settings Window.

Definition at line 692 of file View.cpp.

References te::layout::AbstractScene::getSceneBox(), and te::layout::Scene::reset().

void te::layout::View::onMainMenuChangeContext ( bool change )

virtualslot

Notifies View object that some action on the Menu has been thrown.

Definition at line 504 of file View.cpp.

void te::layout::View::onSelectionChanged ( )

virtualslot

Notifies View object that the selection of objects in the scene changed.

Definition at line 737 of file View.cpp.

void te::layout::View::onSelectionItem ( std::string name )

virtualslot

Definition at line 1094 of file View.cpp.

References te::layout::Scene::selectItem().

void te::layout::View::onSystematicApply	(	double	scale,
		SystematicScaleType	type
	)

virtualslot

Definition at line 732 of file View.cpp.

void te::layout::View::onToolbarChangeContext ( bool change )

virtualslot

Notifies View object that some action on the toolbar has been thrown.

Definition at line 432 of file View.cpp.

void te::layout::View::outsideAreaChangeContext ( bool change )

protectedvirtual

Responsible method for verifying changes made in Context outside the View object and call corresponding actions. Ex.: Action Pan called in toolbar changed Context to Pan mode, then View object call method to do it.

Definition at line 509 of file View.cpp.

void te::layout::View::pan ( )

virtual

Method that sets View object for the Pan function.

Definition at line 819 of file View.cpp.

double te::layout::AbstractView::previousFactor ( double currentFactor )

virtualinherited

Method that returns the previous zoom factor in the list.

Parameters

currentFactor current factor

Definition at line 83 of file AbstractView.cpp.

void te::layout::View::print ( )

virtual

Method that sets View object for the Print function.

Definition at line 857 of file View.cpp.

References te::layout::Scene::getPrintScene(), and te::layout::PrintScene::printPreview().

void te::layout::View::recompose ( )

virtual

Reset to initial configuration made in the config() method. Reset to default zoom factor.

Definition at line 874 of file View.cpp.

References te::layout::Context::getDefaultZoomFactor(), and te::common::Singleton< Context >::getInstance().

void te::layout::View::reloadProperties ( )

signal

This signal is emitted when selection change and mouse release.

void te::layout::View::resetDefaultConfig ( )

protectedvirtual

Definition at line 485 of file View.cpp.

void te::layout::View::resetView ( )

virtual

Reset to initial configuration made in the config() method.

Definition at line 801 of file View.cpp.

References te::layout::Context::getDefaultZoomFactor(), te::common::Singleton< Context >::getInstance(), te::layout::AbstractScene::getSceneBox(), te::gm::Envelope::m_llx, te::gm::Envelope::m_ury, and te::layout::Scene::sceneTransform().

void te::layout::View::resizeEvent ( QResizeEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 427 of file View.cpp.

void te::layout::AbstractView::setVisibleRulers ( bool visible )

virtualinherited

Method that change rulers visibility state.

Parameters

visible visibility state

Definition at line 48 of file AbstractView.cpp.

void te::layout::View::showEvent ( QShowEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 671 of file View.cpp.

void te::layout::View::showPageSetup ( )

protectedvirtual

Method that instantiates and shows the Page Setup window.

Definition at line 677 of file View.cpp.

References te::layout::OutsideController::getView().

void te::layout::View::showSystematicScale ( )

protectedvirtual

Definition at line 710 of file View.cpp.

References te::layout::OutsideController::getView().

void te::layout::View::showView ( )

signal

This signal is emitted when show View object.

void te::layout::View::wheelEvent ( QWheelEvent * event )

protectedvirtual

Reimplemented from QGraphicsView.

Definition at line 287 of file View.cpp.

References te::common::Singleton< Context >::getInstance(), te::layout::Context::getZoomFactor(), te::layout::Context::setOldZoomFactor(), and te::layout::Context::setZoomFactor().

void te::layout::View::zoomArea ( )

virtual

Method that sets View object for the Zoom Area function.

Definition at line 831 of file View.cpp.

void te::layout::View::zoomOut ( )

virtual

Method that sets View object for the Zoom Out function.

Definition at line 844 of file View.cpp.

void te::layout::View::zoomPercentage ( )

virtual

Method that applies current zoom defined in the Context.

Definition at line 883 of file View.cpp.

References te::common::Singleton< Context >::getInstance(), te::layout::Context::getOldZoomFactor(), te::layout::Context::getZoomFactor(), and te::layout::Scene::sceneTransform().

Member Data Documentation

te::gm::Coord2D te::layout::View::m_coordSystematic

protected

Definition at line 347 of file View.h.

AbstractViewTool* te::layout::View::m_currentTool

protected

Definition at line 344 of file View.h.

bool te::layout::View::m_flag

protected

Definition at line 361 of file View.h.

double te::layout::View::m_height

protected

Definition at line 355 of file View.h.

HorizontalRuler* te::layout::View::m_horizontalRuler

protected

Definition at line 350 of file View.h.

Referenced by View().

bool te::layout::View::m_isMoving

protected

Definition at line 356 of file View.h.

double te::layout::View::m_maxZoomLimit

protected

Definition at line 352 of file View.h.

MenuBuilder* te::layout::View::m_menuBuilder

protected

Definition at line 349 of file View.h.

double te::layout::View::m_minZoomLimit

protected

Definition at line 353 of file View.h.

te::layout::MovingItemGroup* te::layout::View::m_movingItemGroup

protected

Definition at line 357 of file View.h.

EnumType* te::layout::View::m_oldMode

protected

Definition at line 359 of file View.h.

Referenced by View().

PageSetupOutside* te::layout::View::m_pageSetupOutside

protected

Definition at line 345 of file View.h.

bool te::layout::View::m_selectionChange

protected

Definition at line 348 of file View.h.

SystematicScaleOutside* te::layout::View::m_systematicOutside

protected

Definition at line 346 of file View.h.

bool te::layout::View::m_updateItemPos

protected

Definition at line 358 of file View.h.

VerticalRuler* te::layout::View::m_verticalRuler

protected

Definition at line 351 of file View.h.

Referenced by View().

bool te::layout::AbstractView::m_visibleRulers

protectedinherited

rulers visibility state

Definition at line 111 of file AbstractView.h.

VisualizationArea* te::layout::View::m_visualizationArea

protected

Definition at line 343 of file View.h.

WaitView* te::layout::View::m_wait

protected

Definition at line 360 of file View.h.

Referenced by View().

double te::layout::View::m_width

protected

Definition at line 354 of file View.h.

std::map<double, std::string> te::layout::AbstractView::m_zoomFactors

protectedinherited

zoom factor list

Definition at line 112 of file AbstractView.h.

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

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

C:/TL5_2015_release/terralib5/src/terralib/layout/qt/core/View.h
C:/TL5_2015_release/terralib5/src/terralib/layout/qt/core/View.cpp

Public Slots

Signals

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation