Class representing a graphics view for displaying and editing a network of nodes. More...

#include <BaseGraphicsView.h>

Inheritance diagram for Frapper::BaseGraphicsView:

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Collaboration diagram for Frapper::BaseGraphicsView:

Public Slots
void	homeView ()
	Resets the network graphics view's matrix.

void	frameAll ()
	Changes the viewing transformation so that all items are visible at maximum zoom level.

void	frameSelected ()
	Changes the viewing transformation so that the selected items are visible at maximum zoom level.

void	toggleScrollbars (bool visible)
	Toggles the visibility of scrollbars for the network graphics view.

Public Member Functions
	BaseGraphicsView (QWidget *parent=0)
	Constructor of the BaseGraphicsView class.

virtual	~BaseGraphicsView ()
	Destructor of the BaseGraphicsView class.

Protected Member Functions
virtual void	keyPressEvent (QKeyEvent *event)
	Event handler for key press events.

virtual void	keyReleaseEvent (QKeyEvent *event)
	Event handler for key release events.

virtual void	mousePressEvent (QMouseEvent *event)
	Event handler for mouse press events.

virtual void	mouseMoveEvent (QMouseEvent *event)
	Event handler for mouse move events.

virtual void	mouseReleaseEvent (QMouseEvent *event)
	Event handler for mouse release events.

virtual void	wheelEvent (QWheelEvent *event)
	Event handler for mouse wheel events.

void	zoomIn ()
	Changes the scale of the graphics scene so that it appears bigger in the graphics view.

void	zoomOut ()
	Changes the scale of the graphics scene so that it appears smaller in the graphics view.

void	setScale (qreal s)
	Sets the scale of the viewing transformation matrix that is used for displaying the graphics scene.

void	frame (const QRectF &rect)
	Sets the viewing transformation so that the given bounding rectangle is fully visible in the graphics view, and centers the bounding rectangle in the middle of the view.

Protected Attributes
bool	m_viewMode
	Flag that states whether the viewing mode is activated.

QPoint	m_lastPosition
	The last position of the mouse pointer over the viewport.

Detailed Description

Class representing a graphics view for displaying and editing a network of nodes.

Inheritance Diagram

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Constructor & Destructor Documentation

Frapper::BaseGraphicsView::BaseGraphicsView ( QWidget * parent = 0 )

Constructor of the BaseGraphicsView class.

Constructors and Destructors.

Parameters

parent The parent widget the created instance will be a child of.

Constructor of the BaseGraphicsView class.

Parameters

parent The parent widget the created instance will be a child of.

Frapper::BaseGraphicsView::~BaseGraphicsView ( void )

virtual

Destructor of the BaseGraphicsView class.

Member Function Documentation

void Frapper::BaseGraphicsView::homeView ( )

slot

Resets the network graphics view's matrix.

Public Slots.

void Frapper::BaseGraphicsView::frameAll ( )

slot

Changes the viewing transformation so that all items are visible at maximum zoom level.

void Frapper::BaseGraphicsView::frameSelected ( )

slot

Changes the viewing transformation so that the selected items are visible at maximum zoom level.

void Frapper::BaseGraphicsView::toggleScrollbars ( bool visible )

slot

Toggles the visibility of scrollbars for the network graphics view.

Parameters

visible Flag to control whether to show or hide the scrollbars.

void Frapper::BaseGraphicsView::keyPressEvent ( QKeyEvent * event )

protectedvirtual

Event handler for key press events.

Protected Events.

Parameters

event The description of the key event.

Event handler for key press events.

Parameters

event The description of the key event.

Reimplemented in PainterPanel::PainterGraphicsView, and Frapper::NetworkGraphicsView.

void Frapper::BaseGraphicsView::keyReleaseEvent ( QKeyEvent * event )

protectedvirtual

Event handler for key release events.

Parameters

event The description of the key event.

void Frapper::BaseGraphicsView::mousePressEvent ( QMouseEvent * event )

protectedvirtual

Event handler for mouse press events.

Parameters

event The description of the mouse event.

Reimplemented in PainterPanel::PainterGraphicsView, and Frapper::NetworkGraphicsView.

void Frapper::BaseGraphicsView::mouseMoveEvent ( QMouseEvent * event )

protectedvirtual

Event handler for mouse move events.

Parameters

event The description of the mouse event.

Reimplemented in Frapper::CurveEditorGraphicsView, PainterPanel::PainterGraphicsView, and Frapper::NetworkGraphicsView.

void Frapper::BaseGraphicsView::mouseReleaseEvent ( QMouseEvent * event )

protectedvirtual

Event handler for mouse release events.

Parameters

event The description of the mouse event.

Reimplemented in PainterPanel::PainterGraphicsView.

void Frapper::BaseGraphicsView::wheelEvent ( QWheelEvent * event )

protectedvirtual

Event handler for mouse wheel events.

Parameters

event The description of the mouse wheel event.

Reimplemented in Frapper::CurveEditorGraphicsView.

void Frapper::BaseGraphicsView::zoomIn ( )

protected

Changes the scale of the graphics scene so that it appears bigger in the graphics view.

Private Functions.

void Frapper::BaseGraphicsView::zoomOut ( )

protected

Changes the scale of the graphics scene so that it appears smaller in the graphics view.

void Frapper::BaseGraphicsView::setScale ( qreal s )

protected

Sets the scale of the viewing transformation matrix that is used for displaying the graphics scene.

Parameters

s	The new scale for the viewing transformation matrix.

void Frapper::BaseGraphicsView::frame ( const QRectF & rect )

protected

Sets the viewing transformation so that the given bounding rectangle is fully visible in the graphics view, and centers the bounding rectangle in the middle of the view.

Parameters

rect	The rectangular region to frame in the graphics view.

Member Data Documentation

bool Frapper::BaseGraphicsView::m_viewMode

protected

Flag that states whether the viewing mode is activated.

QPoint Frapper::BaseGraphicsView::m_lastPosition

protected

The last position of the mouse pointer over the viewport.

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

Public Slots

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation