#include <PainterGraphicsView.h>

Inheritance diagram for PainterPanel::PainterGraphicsView:

Collaboration diagram for PainterPanel::PainterGraphicsView:

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Public Types
enum	DrawMode { NONE = 0, PAINT, LINE, RECT, CIRCLE, ELLIPSE, POLYGON, POLYLINE, CURVE, CLOSEDCURVE, NUM_MODES }

Public Slots
void	onSelectionChanged ()
	Call this Slot when the selected item in the scene changes.

void	changeBrush (QBrush brush)
	Call this Slot when the brush changes Updates the currently selected items.

void	changePen (QPen pen)
	Call this Slot when the pen changes Updates the currently selected items.

Public Slots inherited from Frapper::BaseGraphicsView
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.

Signals
void	triggerRedraw ()
	This signal is emitted when the scene has changed.

void	sceneChanged (QGraphicsScene *scene)
	This signal is emitted when the scene has changed.

void	drawModeChanged (int mode)
	This signal is emitted when the drawmode has changed.

void	penChanged (QPen pen)
	This signal is emitted when the current pen has changed, e.g. by selection.

void	brushChanged (QBrush brush)
	This signal is emitted when the current brush has changed, e.g. by selection.

void	selectionChanged (QList< QGraphicsItem * > items)
	This signal is emitted when the scene selection changes.

Public Member Functions
	PainterGraphicsView (QWidget *parent=0, Qt::WindowFlags flags=0)
	Constructor of the PainterGraphicsView class.

virtual	~PainterGraphicsView ()
	Destructor of the PainterGraphicsView class.

void	renderToImage (QImage &image)
	Render content of current scene to a QImage.

void	setDrawMode (DrawMode drawmode)
	Set the current draw mode that defines which item is created on interaction with the graphics view.

void	setCurrentScene (PainterGraphicsScene *scene)
	Set the current scene painter graphics scene to the given scene and listen to changes of this scene.

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

virtual	~BaseGraphicsView ()
	Destructor of the BaseGraphicsView class.

Protected Member Functions
virtual void	mouseMoveEvent (QMouseEvent *event)
	The overwritten event handler for the mouse move event.

virtual void	mousePressEvent (QMouseEvent *event)
	The overwritten event handler for the mouse press event.

virtual void	mouseReleaseEvent (QMouseEvent *event)
	The overwritten event handler for the mouse release event.

virtual void	keyPressEvent (QKeyEvent *event)
	The overwritten event handler for the key press event.

Protected Member Functions inherited from Frapper::BaseGraphicsView
virtual void	keyReleaseEvent (QKeyEvent *event)
	Event handler for key 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.

Private Member Functions
void	toggleDrawmode ()
	Step through the different draw modes.

void	clearScene ()
	Clear the current and remove all items.

BaseShapeItem *	createGraphicsItem (QPointF pos)
	Create a new GraphicsItem at the given position according to the currently selected drawmode.

Private Attributes
BaseShapeItem *	m_currentItem
	The graphics item which is currently created.

QBrush	m_brush
	The current brush to apply to new graphics items.

QPen	m_pen
	The current pen to apply to new graphics items.

DrawMode	m_drawMode
	The current draw mode.

Additional Inherited Members
Protected Attributes inherited from Frapper::BaseGraphicsView
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.

Member Enumeration Documentation

enum PainterPanel::PainterGraphicsView::DrawMode

Enumerator:

NONE
PAINT
LINE
RECT
CIRCLE
ELLIPSE
POLYGON
POLYLINE
CURVE
CLOSEDCURVE
NUM_MODES

Constructor & Destructor Documentation

PainterPanel::PainterGraphicsView::PainterGraphicsView	(	QWidget *	parent = `0`,
		Qt::WindowFlags	flags = `0`
	)

Constructor of the PainterGraphicsView class.

Constructors and Destructors.

Parameters

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

Constructor of the PainterGraphicsView class.

Parameters

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

PainterPanel::PainterGraphicsView::~PainterGraphicsView ( )

virtual

Destructor of the PainterGraphicsView class.

Defined virtual to guarantee that the destructor of a derived class will be called if the instance of the derived class is saved in a variable of its parent class type.

Member Function Documentation

void PainterPanel::PainterGraphicsView::renderToImage ( QImage & image )

Render content of current scene to a QImage.

Parameters

image The image to render to

void PainterPanel::PainterGraphicsView::setDrawMode ( DrawMode drawmode )

Set the current draw mode that defines which item is created on interaction with the graphics view.

Parameters

drawmode The drawmode to be used

void PainterPanel::PainterGraphicsView::setCurrentScene ( PainterGraphicsScene * scene )

Set the current scene painter graphics scene to the given scene and listen to changes of this scene.

Parameters

scene The scene to be used

void PainterPanel::PainterGraphicsView::onSelectionChanged ( )

slot

Call this Slot when the selected item in the scene changes.

Public Slots.

void PainterPanel::PainterGraphicsView::changeBrush ( QBrush brush )

slot

Call this Slot when the brush changes Updates the currently selected items.

Parameters

brush The new brush to be applied to the selected items

void PainterPanel::PainterGraphicsView::changePen ( QPen pen )

slot

Call this Slot when the pen changes Updates the currently selected items.

Parameters

pen	The new pen to be applied to the selected items

void PainterPanel::PainterGraphicsView::triggerRedraw ( )

signal

This signal is emitted when the scene has changed.

void PainterPanel::PainterGraphicsView::sceneChanged ( QGraphicsScene * scene )

signal

This signal is emitted when the scene has changed.

void PainterPanel::PainterGraphicsView::drawModeChanged ( int mode )

signal

This signal is emitted when the drawmode has changed.

void PainterPanel::PainterGraphicsView::penChanged ( QPen pen )

signal

This signal is emitted when the current pen has changed, e.g. by selection.

void PainterPanel::PainterGraphicsView::brushChanged ( QBrush brush )

signal

This signal is emitted when the current brush has changed, e.g. by selection.

void PainterPanel::PainterGraphicsView::selectionChanged ( QList< QGraphicsItem * > items )

signal

This signal is emitted when the scene selection changes.

void PainterPanel::PainterGraphicsView::mouseMoveEvent ( QMouseEvent * event )

protectedvirtual

The overwritten event handler for the mouse move event.

Parameters

event The description of the mouse move event.

Reimplemented from Frapper::BaseGraphicsView.

void PainterPanel::PainterGraphicsView::mousePressEvent ( QMouseEvent * event )

protectedvirtual

The overwritten event handler for the mouse press event.

The overwritten the event handler for the drag move event.

Parameters

event	The description of the mouse press event.
event	The description of the drag move event.

Reimplemented from Frapper::BaseGraphicsView.

void PainterPanel::PainterGraphicsView::mouseReleaseEvent ( QMouseEvent * event )

protectedvirtual

The overwritten event handler for the mouse release event.

Parameters

event The description of the mouse release event.

Reimplemented from Frapper::BaseGraphicsView.

void PainterPanel::PainterGraphicsView::keyPressEvent ( QKeyEvent * event )

protectedvirtual

The overwritten event handler for the key press event.

Parameters

event The description of the key press event.

Reimplemented from Frapper::BaseGraphicsView.

void PainterPanel::PainterGraphicsView::toggleDrawmode ( )

private

Step through the different draw modes.

void PainterPanel::PainterGraphicsView::clearScene ( )

private

Clear the current and remove all items.

BaseShapeItem * PainterPanel::PainterGraphicsView::createGraphicsItem ( QPointF pos )

private

Create a new GraphicsItem at the given position according to the currently selected drawmode.

Parameters

pos	The initial position of the new graphics item

Member Data Documentation

BaseShapeItem* PainterPanel::PainterGraphicsView::m_currentItem

private

The graphics item which is currently created.

QBrush PainterPanel::PainterGraphicsView::m_brush

private

The current brush to apply to new graphics items.

QPen PainterPanel::PainterGraphicsView::m_pen

private

The current pen to apply to new graphics items.

DrawMode PainterPanel::PainterGraphicsView::m_drawMode

private

The current draw mode.

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

Public Types

Public Slots

Signals

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation