QWidget based 2d graphics view. More...

#include <RGraphicsViewQt.h>

Inheritance diagram for RGraphicsViewQt:

Signals
void	dragEnter (QDragEnterEvent *event)
void	drop (QDropEvent *event)
void	updateSnapInfo (QPainter painter, RSnap snap, RSnapRestriction *restriction)
void	updateTextLabel (QPainter *painter, const RTextLabel &textLabel)
void	viewportChanged ()

Public Member Functions
void	disableGestures ()
virtual void	emitUpdateSnapInfo (RSnap snap, RSnapRestriction restriction)
virtual void	emitUpdateTextLabel (const RTextLabel &textLabel)
virtual QCursor	getCursor ()
virtual int	getHeight () const
virtual int	getWidth () const
virtual bool	hasFocus ()
virtual void	removeFocus ()
virtual void	repaintNow ()
virtual void	repaintView ()
	Triggers a paintEvent based on a buffered offscreen bitmap (very fast).
	RGraphicsViewQt (QWidget *parent=NULL, bool showFocus=true)
virtual void	setCursor (Qt::CursorShape cursorShape)
virtual void	setCursor (const QCursor &cursor)
void	setFocusFrameWidget (QFrame *w)
virtual void	viewportChangeEvent ()
virtual	~RGraphicsViewQt ()
Public Member Functions inherited from RGraphicsViewImage
void	addToBackground (const RPainterPath &path)
void	autoZoom (int margin=RDEFAULT_MIN1)
void	clearBackground ()
virtual void	emitDecorateBackground (QPainter *painter)
virtual void	emitDecorateForeground (QPainter *painter)
bool	getAntialiasing ()
QColor	getBackgroundColor ()
RBox	getBox () const
QImage	getBuffer () const
bool	getColorCorrectionOverride () const
RDocument *	getDocument ()
RDocumentInterface *	getDocumentInterface ()
bool	getDraftMode () const
double	getFactor (bool includeStepFactor=true) const
RGrid *	getGrid ()
RVector	getOffset (bool includeStepOffset=true) const
bool	getPanOptimization ()
RGraphicsScene *	getScene ()
int	getTextHeightThresholdOverride () const
QTransform	getTransform () const
bool	isPrinting () const
bool	isPrintPreview () const
virtual double	mapDistanceFromView (double d) const
	Maps the given view distance in pixels to a model distance.
virtual double	mapDistanceToView (double d) const
	Maps the given model distance to a screen distance in pixels.
virtual RVector	mapFromView (const RVector &v, double z=0.0) const
	Maps the given view coordinate in pixels to a model coordinate.
virtual RVector	mapToView (const RVector &v) const
	Maps the given model coordinate to a view coordinate in pixels.
virtual void	paintEntities (QPainter *painter, const RBox &queryBox)
virtual void	paintEntity (QPainter *painter, REntity::Id id)
virtual void	paintGridPoint (const RVector &ucsPosition)
virtual void	paintMetaGridLine (const RLine &ucsPosition)
virtual void	regenerate (bool force=false)
	Regenerates the view from the underlying scene.
void	resizeImage (int w, int h)
void	restoreViewport ()
	RGraphicsViewImage ()
void	saveViewport ()
void	setAntialiasing (bool val)
virtual void	setBackgroundColor (const QColor &col)
void	setBackgroundTransform (double bgFactor, const RVector &bgOffset)
void	setColorCorrectionOverride (bool on)
void	setColorMode (RGraphicsView::ColorMode cm)
void	setDraftMode (bool on)
void	setFactor (double f, bool regen=true)
void	setGrid (RGrid *grid)
	Sets the current grid.
void	setMargin (int m)
void	setNavigationAction (RAction *action)
	Sets an action object that is typically used to handle all navigation interaction (zooming, panning, ...).
void	setOffset (const RVector &offset, bool regen=true)
void	setPaintOrigin (bool val)
void	setPanOptimization (bool on)
void	setPrinting (bool on)
void	setPrintPointSize (const RVector &s)
void	setPrintPreview (bool on)
virtual void	setScene (RGraphicsSceneQt *scene, bool regen=true)
void	setTextHeightThresholdOverride (int v)
virtual void	simulateMouseMoveEvent ()
virtual void	updateImage ()
	Repaints the view.
void	zoomTo (const RBox &window, int margin=0)
	Zooms the view in a way that all entities are within the visible area of the view.
virtual	~RGraphicsViewImage ()
Public Member Functions inherited from RGraphicsView
void	addTextLabel (const RTextLabel &textLabel)
void	clearTextLabels ()
REntity::Id	getClosestEntity (const RVector &screenPosition, int range, bool includeLockedLayers=true)
	Finds the entity that is the closest to the given screen coordinate (in pixels).
RVector	getClosestReferencePoint (const RVector &screenPosition, int range)
	Finds the reference point that is the closest to the given screen coordinate (in pixels).
RVector	getClosestReferencePoint (REntity::Id entityId, const RVector &screenPosition)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
RGraphicsView::ColorMode	getColorMode ()
RVector	getCurrentStepOffset () const
double	getCurrentStepScaleFactor () const
RDocument *	getDocument () const
RVector	getLastKnownMousePosition () const
int	getMargin ()
virtual RVector	getMaximum () const
virtual RVector	getMinimum () const
QList< RTextLabel >	getTextLabels ()
virtual void	handleKeyPressEvent (QKeyEvent &event)
virtual void	handleKeyReleaseEvent (QKeyEvent &event)
virtual void	handleMouseDoubleClickEvent (RMouseEvent &event)
	This should be called by the mouse double click event handler of a higher level GUI toolkit.
virtual void	handleMouseMoveEvent (RMouseEvent &event)
	This should be called by the mouse move event handler of a higher level GUI toolkit.
virtual void	handleMousePressEvent (RMouseEvent &event)
	This should be called by the mouse press event handler of a higher level GUI toolkit.
virtual void	handleMouseReleaseEvent (RMouseEvent &event)
	This should be called by the mouse release event handler of a higher level GUI toolkit.
virtual void	handlePanGestureEvent (QPanGesture &gesture)
virtual void	handlePinchGestureEvent (QPinchGesture &gesture)
virtual void	handleSwipeGestureEvent (QSwipeGesture &gesture)
virtual void	handleTabletEvent (RTabletEvent &event)
	This should be called by the tablet event handler of a higher level GUI toolkit.
virtual void	handleTerminateEvent (RTerminateEvent &event)
virtual void	handleWheelEvent (RWheelEvent &event)
	This should be called by the mouse wheel event handler of a higher level GUI toolkit.
bool	isGridVisible () const
virtual QList< RVector >	mapCornersFromView () const
virtual RBox	mapToView (const RBox &box) const
	Finds the entity that is the closest to the given screen coordinate (in pixels) and inside the current UCS (read floor).
virtual void	pan (const RVector &delta)
	Pans (scrolls) by the given amount `delta` which is a vector in screen coordinates (pixels).
	RGraphicsView (RGraphicsScene *scene=NULL)
void	setCurrentStepOffset (const RVector &s)
void	setCurrentStepScaleFactor (double f)
void	setDisplayOnlyCurrentUcs (bool on)
	If `on` is true, only the current UCS and the entities that are in its range are displayed.
void	setGridVisible (bool on)
virtual void	setScene (RGraphicsScene *scene, bool regen=true)
void	startPan ()
virtual void	zoom (const RVector &center, double factor)
	Zooms in / out by the given factor towards / from the given center in scene coordinates.
void	zoomIn ()
	Zooms in by factor 1.2.
void	zoomIn (const RVector &center)
	Zooms in by factor 1.2.
void	zoomOut ()
	Zooms out by factor 1.2.
void	zoomOut (const RVector &center)
	Zooms out by factor 1.0/1.2.
void	zoomPrevious ()
bool	zoomToSelection ()
virtual	~RGraphicsView ()

Protected Member Functions
virtual void	dragEnterEvent (QDragEnterEvent *event)
virtual void	dropEvent (QDropEvent *event)
bool	event (QEvent *e)
	Handle terminate events and gestures.
virtual void	focusInEvent (QFocusEvent *event)
	Called when this view gets the focus.
virtual void	focusOutEvent (QFocusEvent *event)
	Called when this view lost the focus.
bool	gestureEvent (QGestureEvent *event)
	Handle gesture events.
virtual void	keyPressEvent (QKeyEvent *event)
virtual void	keyReleaseEvent (QKeyEvent *event)
virtual void	mouseDoubleClickEvent (QMouseEvent *event)
virtual void	mouseMoveEvent (QMouseEvent *event)
	Relays the Qt mouse event to the scene.
virtual void	mousePressEvent (QMouseEvent *event)
virtual void	mouseReleaseEvent (QMouseEvent *event)
virtual void	paintEvent (QPaintEvent *)
	Repaints the view.
virtual void	resizeEvent (QResizeEvent *event)
virtual QSize	sizeHint () const
virtual void	wheelEvent (QWheelEvent *event)
Protected Member Functions inherited from RGraphicsViewImage
QPainter *	initPainter (QPaintDevice &device, bool erase, bool screen=false, const QRect &rect=QRect())
void	invalidate (bool force=false)
virtual void	paintBackground (QPainter *painter, const QRect &rect=QRect())
virtual void	paintCursor (QPaintDevice &device)
virtual void	paintDocument (const QRect &rect=QRect())
virtual void	paintErase (QPaintDevice &device, const QRect &rect=QRect())
virtual void	paintGrid (QPaintDevice &device, const QRect &rect=QRect())
virtual void	paintImage (QPainter *painter, RImageData &image)
virtual void	paintMetaGrid (QPaintDevice &device, const QRect &rect=QRect())
virtual void	paintOrigin (QPaintDevice &device)
	Paints the absolute zero point (origin).
virtual void	paintRelativeZero (QPaintDevice &device)
void	updateGraphicsBuffer ()
	Updates the graphics buffer from scratch.
void	updateTransformation () const
Protected Member Functions inherited from RGraphicsView
virtual void	centerTo (const RBox &box)
	Centers the view on the given `box`.

Private Attributes
QFrame *	focusFrameWidget
bool	gesturesEnabled
Qt::MouseButtons	lastButtonState
	remember last mouse button state for wacom bug workaround
QCursor	lastCursor
QTransform	previousView
bool	showFocus

Additional Inherited Members
Protected Attributes inherited from RGraphicsViewImage
bool	antialiasing
QList< RPainterPath >	backgroundDecoration
double	backgroundFactor
RVector	backgroundOffset
int	bgColorLightness
RBox	clipBox
bool	colorCorrection
bool	colorCorrectionOverride
int	colorThreshold
double	currentScale
bool	doPaintOrigin
double	drawingScale
QImage	graphicsBuffer
bool	graphicsBufferNeedsUpdate
QImage	graphicsBufferWithPreview
QPainter *	gridPainter
bool	isSelected
double	lastFactor
RVector	lastOffset
QSize	lastSize
QMutex	mutexSi
bool	panOptimization
RGraphicsSceneQt *	sceneQt
QSet< RObject::Id >	selectedIds
int	textHeightThreshold
int	textHeightThresholdOverride
QTransform	transform
Protected Attributes inherited from RGraphicsView
bool	autoScalePatterns
QColor	backgroundColor
ColorMode	colorMode
RVector	currentStepOffset
double	currentStepScaleFactor
	Current scale factor caused by a pinch gesture.
bool	displayOnlyCurrentUcs
	True to only display entities within the horizontal slice that is defined by the current UCS.
bool	draftMode
double	factor
	Scale factor from model coordinates to view coordinates.
RGrid *	grid
	Grid that is currently displayed by this view or NULL.
bool	gridVisible
RVector	lastKnownModelPosition
RVector	lastKnownViewPosition
int	margin
RAction *	navigationAction
	The navigation action of this view or NULL if no navigation action has been set.
RVector	offset
	Offset of the zero point from the lower left corner of the view in model coordinates.
double	previousFactor
RVector	previousOffset
bool	printing
RVector	printPointSize
bool	printPreview
RGraphicsScene *	scene
	The scene this view is attached to.
QList< RTextLabel >	textLabels
	Internal list of text labels that were added to this view.

Detailed Description

QWidget based 2d graphics view.

This graphics view displays a rectangular area of a RGraphicsSceneQt.

Scriptable:: This class is wrapped for script environments.

Constructor & Destructor Documentation

RGraphicsViewQt::RGraphicsViewQt	(	QWidget *	parent = `NULL`,
		bool	showFocus = `true`
	)

RGraphicsViewQt::~RGraphicsViewQt ( )

virtual

Member Function Documentation

void RGraphicsViewQt::disableGestures ( )

inline

void RGraphicsViewQt::dragEnter ( QDragEnterEvent * event )

signal

void RGraphicsViewQt::dragEnterEvent ( QDragEnterEvent * event )

protectedvirtual

void RGraphicsViewQt::drop ( QDropEvent * event )

signal

void RGraphicsViewQt::dropEvent ( QDropEvent * event )

protectedvirtual

void RGraphicsViewQt::emitUpdateSnapInfo	(	RSnap *	snap,
		RSnapRestriction *	restriction
	)

virtual

Reimplemented from RGraphicsViewImage.

void RGraphicsViewQt::emitUpdateTextLabel ( const RTextLabel & textLabel )

virtual

Reimplemented from RGraphicsViewImage.

bool RGraphicsViewQt::event ( QEvent * e )

protected

Handle terminate events and gestures.

void RGraphicsViewQt::focusInEvent ( QFocusEvent * event )

protectedvirtual

Called when this view gets the focus.

Highlights the view to show to the user that events go to this view.

void RGraphicsViewQt::focusOutEvent ( QFocusEvent * event )

protectedvirtual

Called when this view lost the focus.

Resets the focus highlighting.

bool RGraphicsViewQt::gestureEvent ( QGestureEvent * event )

protected

Handle gesture events.

QCursor RGraphicsViewQt::getCursor ( )

virtual

Reimplemented from RGraphicsView.

int RGraphicsViewQt::getHeight ( ) const

virtual

Returns:: Height of the view in pixels.

Reimplemented from RGraphicsViewImage.

int RGraphicsViewQt::getWidth ( ) const

virtual

Returns:: Width of the view in pixels.

Reimplemented from RGraphicsViewImage.

bool RGraphicsViewQt::hasFocus ( )

virtual

Returns:: True if this view currently has the focus.

Reimplemented from RGraphicsViewImage.

void RGraphicsViewQt::keyPressEvent ( QKeyEvent * event )

protectedvirtual

void RGraphicsViewQt::keyReleaseEvent ( QKeyEvent * event )

protectedvirtual

void RGraphicsViewQt::mouseDoubleClickEvent ( QMouseEvent * event )

protectedvirtual

void RGraphicsViewQt::mouseMoveEvent ( QMouseEvent * event )

protectedvirtual

Relays the Qt mouse event to the scene.

void RGraphicsViewQt::mousePressEvent ( QMouseEvent * event )

protectedvirtual

void RGraphicsViewQt::mouseReleaseEvent ( QMouseEvent * event )

protectedvirtual

void RGraphicsViewQt::paintEvent ( QPaintEvent * e )

protectedvirtual

Repaints the view.

If the view has been invalidated before, the view is redrawn from scratch. Otherwise, only a cached buffer is drawn (very fast).

See also:: invalidate

void RGraphicsViewQt::removeFocus ( )

virtual

Reimplemented from RGraphicsViewImage.

void RGraphicsViewQt::repaintNow ( )

virtual

void RGraphicsViewQt::repaintView ( )

virtual

Triggers a paintEvent based on a buffered offscreen bitmap (very fast).

Reimplemented from RGraphicsViewImage.

void RGraphicsViewQt::resizeEvent ( QResizeEvent * event )

protectedvirtual

void RGraphicsViewQt::setCursor ( Qt::CursorShape cursorShape )

virtual

Reimplemented from RGraphicsView.

void RGraphicsViewQt::setCursor ( const QCursor & cursor )

virtual

Reimplemented from RGraphicsView.

void RGraphicsViewQt::setFocusFrameWidget ( QFrame * w )

QSize RGraphicsViewQt::sizeHint ( ) const

protectedvirtual

void RGraphicsViewQt::updateSnapInfo	(	QPainter *	painter,
		RSnap *	snap,
		RSnapRestriction *	restriction
	)

signal

void RGraphicsViewQt::updateTextLabel	(	QPainter *	painter,
		const RTextLabel &	textLabel
	)

signal

void RGraphicsViewQt::viewportChanged ( )

signal

void RGraphicsViewQt::viewportChangeEvent ( )

virtual

Reimplemented from RGraphicsView.

void RGraphicsViewQt::wheelEvent ( QWheelEvent * event )

protectedvirtual

Member Data Documentation

QFrame* RGraphicsViewQt::focusFrameWidget

private

bool RGraphicsViewQt::gesturesEnabled

private

Qt::MouseButtons RGraphicsViewQt::lastButtonState

private

remember last mouse button state for wacom bug workaround

QCursor RGraphicsViewQt::lastCursor

private

QTransform RGraphicsViewQt::previousView

private

Reimplemented from RGraphicsViewImage.

bool RGraphicsViewQt::showFocus

private

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

src/gui/RGraphicsViewQt.h
src/gui/RGraphicsViewQt.cpp

Signals

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation