Qocc3dWidget Class Reference

This class provides the view element of the QtOpenCascade Toolkit. This class provides a Widget to view OpenCASCADE objects within a Qt4 hosted application. More...

#include <qocc3dwidget.h>

Collaboration diagram for Qocc3dWidget:

[legend]List of all members.


Public Types
	CurAction3d_Undefined
	CurAction3d_Nothing
	CurAction3d_Picking
	CurAction3d_DynamicZooming
	CurAction3d_WindowZooming
	CurAction3d_DynamicPanning
	CurAction3d_GlobalPanning
	CurAction3d_DynamicRotation
enum	CurrentAction3d { CurAction3d_Undefined, CurAction3d_Nothing, CurAction3d_Picking, CurAction3d_DynamicZooming, CurAction3d_WindowZooming, CurAction3d_DynamicPanning, CurAction3d_GlobalPanning, CurAction3d_DynamicRotation }
Public Slots
void	idle ()
	Go idle This called from various locations, and also exposed as a slot.
void	fitExtents ()
	Just fits the current window This function just fits the current objects to the window, without either reducing or increasing the Z extents. This can cause clipping of the objects after rotation.
void	fitAll ()
	Fits the model to view extents This function fits the current objects to the window, reducing or increasing the Z extents as needed.
void	fitArea ()
	Sets up the view for a rubberband window zoom.
void	zoom ()
	Sets up the view for a dynamic zoom.
void	pan ()
	Sets up the view for panning.
void	globalPan ()
	Sets up the view for global panning, whatever that is!
void	rotation ()
	Sets up the view for dynamic rotation.
void	hiddenLineOn ()
void	hiddenLineOff ()
void	background ()
void	viewFront ()
	View from canonical "front".
void	viewBack ()
	View from canonical "back".
void	viewTop ()
	View from canonical "top". This is traditional XOY axis.
void	viewBottom ()
	View from canonical "bottom".
void	viewLeft ()
	View from canonical "left".
void	viewRight ()
	View from canonical "right".
void	viewAxo ()
	View using axonometric projection.
void	viewTopFront ()
void	viewGrid ()
	This aligns the view to the current privilege plane. Not so interesting at the moment, but wait until custom grid planes are implemented!
void	viewReset ()
void	setReset ()
void	newShape ()
void	refresh ()
Signals
void	initialized ()
void	selectionChanged ()
void	mouseMoved (Qocc3dWidget widget, QMouseEvent e)
void	mouseClicked (Qocc3dWidget widget, QMouseEvent e)
void	sendStatus (const QString aMessage)
void	popupMenu (const Qocc3dWidget *aView, const QPoint aPoint)
	Just a placeholder for now.
void	error (int errorCode, QString &errorDescription)
Public Member Functions
	Qocc3dWidget (const QoccController aController=NULL, QWidget parent=NULL, Qt::WindowFlags wflags=0)
	Constructor for Qocc3dWidget. This constructor creates an uninitialised window for rendering a Handle_V3d_View based OpenCASCADE 3D viewer.
	~Qocc3dWidget ()
	Default destructor for Qocc3dWidget. This should delete any memory and release any resources. No parameters required.
QoccController *	getController (void)
	Handle (AIS_InteractiveContext)&getContext(void)
	Handle (V3d_Viewer)&getViewer(void)
	Handle (V3d_View)&getView(void)
V3d_Coordinate	x (void)
V3d_Coordinate	y (void)
V3d_Coordinate	z (void)
Qt::MouseButtons	buttons () const
Qt::MouseButtons	button () const
Qt::KeyboardModifiers	keyboard () const
void	setStatusMessage (const QString &aString)
QPaintEngine *	paintEngine () const
	Returns a NULL QPaintEngine This should result in a minor performance benefit.
gp_Dir	getDirection ()
gp_Pln	getPlane ()
gp_Pnt	getPoint ()
void	redraw (bool isPainting=false)
	The main redraw function This called from various locations.
void	setProjection (V3d_TypeOfOrientation orientation)
bool	dump (Standard_CString theFile)
Protected Member Functions
void	initializeOCC ()
	The initializeOCC() procedure. This function creates the widget's view using the interactive context provided. Currently it also creates a trihedron object in the lower left corner - this will eventually be managed by an external system setting.
virtual void	paintEvent (QPaintEvent *e)
	Paint Event Called when the Widget needs to repaint itself.
virtual void	resizeEvent (QResizeEvent *e)
	Resize event. Called when the Widget needs to resize itself, but seeing as a paint event always follows a resize event, we'll move the work into the paint event.
virtual void	mousePressEvent (QMouseEvent *e)
	Mouse press event.
virtual void	mouseReleaseEvent (QMouseEvent *e)
	Mouse release event.
virtual void	mouseMoveEvent (QMouseEvent *e)
	Mouse move event, driven from application message loop.
virtual void	wheelEvent (QWheelEvent *e)
	The QWheelEvent class contains parameters that describe a wheel event.
virtual void	leaveEvent (QEvent *)
	A leave event is sent to the widget when the mouse cursor leaves the widget. This sub-classed event handler fixes redraws when gestures are interrupted by use of parent menus etc. (Candidate for change).
Private Member Functions
	Handle (V3d_View) myView
	Handle (Visual3d_View) myVisual
void	onLeftButtonDown (Qt::KeyboardModifiers nFlags, const QPoint point)
	This function handles left button down events from the mouse.
void	onMiddleButtonDown (Qt::KeyboardModifiers nFlags, const QPoint point)
	This function handles middle button down events from the mouse.
void	onRightButtonDown (Qt::KeyboardModifiers nFlags, const QPoint point)
	This function handles right button down events from the mouse.
void	onLeftButtonUp (Qt::KeyboardModifiers nFlags, const QPoint point)
	This function handles left button up events from the mouse. This marks the end of the gesture.
void	onMiddleButtonUp (Qt::KeyboardModifiers nFlags, const QPoint point)
	Middle button up event handler. This marks the end of the gesture.
void	onRightButtonUp (Qt::KeyboardModifiers nFlags, const QPoint point)
	Right button up event handler. This marks the end of the gesture.
void	onMouseMove (Qt::MouseButtons buttons, Qt::KeyboardModifiers nFlags, const QPoint point)
	Mouse move event handler.
AIS_StatusOfPick	dragEvent (const QPoint startPoint, const QPoint endPoint, const bool multi=false)
	Drag event handler.
AIS_StatusOfPick	inputEvent (const bool multi=false)
	This handles object highlighting during movement of the mouse across the view.
AIS_StatusOfDetection	moveEvent (const QPoint point)
	Move event detection handler.
void	setMode (const CurrentAction3d mode)
	This function sets the current cursor for the given interraction mode.
Standard_Real	precision (Standard_Real aReal)
	This is a Utility function for rounding the input value to a specific DP.
Standard_Real	viewPrecision (bool resized=false)
	This routine calculates the minimum sensible precision for the point selection routines, by setting an minumum resolution to a decade one higher than the equivalent pixel width.
void	drawRubberBand (const QPoint origin, const QPoint position)
	Draws the rubberband box This function is designed to reduce "flicker" as the box is redrawn, especially when the origin in the bottom corner of the window.
void	showRubberBand (void)
	Shows the rubberband box.
void	hideRubberBand (void)
	Hides the rubberband box.
void	sendStatusLocation (void)
Standard_Boolean	convertToPlane (const Standard_Integer Xs, const Standard_Integer Ys, Standard_Real &X, Standard_Real &Y, Standard_Real &Z)
	ConvertToPlane convert 2d window position to 3d point on priviledged plane. This routine was provided by Matra Datavision during Foundation training. There still appears to be a pixel error in y co-ordinate transforms.
void	paintOCC ()
	The OpenGL paint routine in the callback.
Static Private Member Functions
static int	paintCallBack (Aspect_Drawable, void , Aspect_GraphicCallbackStruct )
	Static OpenCascade callback proxy.
Private Attributes
Handle_Xw_Window	myWindow
QoccController *	myController
Standard_Boolean	myViewResized
Standard_Boolean	myViewInitialized
CurrentAction3d	myMode
Quantity_Factor	myCurZoom
Standard_Boolean	myGridSnap
AIS_StatusOfDetection	myDetection
V3d_Coordinate	myCurrentX
V3d_Coordinate	myCurrentY
V3d_Coordinate	myCurrentZ
QRubberBand *	myRubberBand
QPoint	myStartPoint
QPoint	myCurrentPoint
Standard_Real	myPrecision
Standard_Real	myViewPrecision
Standard_Boolean	myMapIsValid
Qt::KeyboardModifiers	myKeyboardFlags
Qt::MouseButton	myMouseFlags
Qt::MouseButtons	myMouseState
QCursor	myCrossCursor
QToolBar *	myToolBar
Static Private Attributes
static QString	myStatusMessage = QObject::tr("")

Detailed Description

This class provides the view element of the QtOpenCascade Toolkit. This class provides a Widget to view OpenCASCADE objects within a Qt4 hosted application.

Author:: Peter C. Dolbey

Definition at line 46 of file qocc3dwidget.h.

Member Enumeration Documentation

enum Qocc3dWidget::CurrentAction3d

Enumerator:

CurAction3d_Undefined
CurAction3d_Nothing
CurAction3d_Picking
CurAction3d_DynamicZooming
CurAction3d_WindowZooming
CurAction3d_DynamicPanning
CurAction3d_GlobalPanning
CurAction3d_DynamicRotation

Definition at line 52 of file qocc3dwidget.h.

Constructor & Destructor Documentation

Qocc3dWidget::Qocc3dWidget	(	const QoccController *	aController = `NULL`,
		QWidget *	parent = `NULL`,
		Qt::WindowFlags	f = `0`
	)

Constructor for Qocc3dWidget. This constructor creates an uninitialised window for rendering a Handle_V3d_View based OpenCASCADE 3D viewer.

Parameters:

	aContext	The widget's Qocc context
	parent	The widget's parent widget
	wflags	The widget's window configuration flags

See also:: initialize

Definition at line 63 of file qocc3dwidget.cpp.

References CurAction3d_Undefined, INITIAL_PRECISION, myController, myCrossCursor, myDetection, myGridSnap, myKeyboardFlags, myMode, myMouseFlags, myPrecision, myRubberBand, myViewInitialized, myViewPrecision, and myViewResized.

Qocc3dWidget::~Qocc3dWidget ( )

Default destructor for Qocc3dWidget. This should delete any memory and release any resources. No parameters required.

Definition at line 128 of file qocc3dwidget.cpp.

References myRubberBand.

Member Function Documentation

void Qocc3dWidget::background ( ) [slot]

Definition at line 620 of file qocc3dwidget.cpp.

References redraw().

Qt::MouseButtons Qocc3dWidget::button ( ) const [inline]

Definition at line 96 of file qocc3dwidget.h.

Qt::MouseButtons Qocc3dWidget::buttons ( ) const [inline]

Definition at line 95 of file qocc3dwidget.h.

Standard_Boolean Qocc3dWidget::convertToPlane	(	const Standard_Integer	Xs,
		const Standard_Integer	Ys,
		Standard_Real &	X,
		Standard_Real &	Y,
		Standard_Real &	Z
	)			`[private]`

ConvertToPlane convert 2d window position to 3d point on priviledged plane. This routine was provided by Matra Datavision during Foundation training. There still appears to be a pixel error in y co-ordinate transforms.

------------------------------------------------------------------------------------

Parameters:

	Xs	The screen's x co-ordinate (in)
	Ys	The screen's y co-ordinate (in)
	X	The output x position on the privileged plane (out)
	Y	The output y position on the privileged plane (out)
	Z	The output z position on the privileged plane (out)

Returns:: Standard_Boolean indicating success or failure

Definition at line 1019 of file qocc3dwidget.cpp.

Referenced by mouseMoveEvent().

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AIS_StatusOfPick Qocc3dWidget::dragEvent	(	const QPoint	startPoint,
		const QPoint	endPoint,
		const bool	multi = `false`
	)			`[private]`

Drag event handler.

Parameters:

	startPoint	The gesture start point.
	endPoint	The gesture end point.
	multi	Allows selection of multiple objects.

Returns:: The status of pick.

Definition at line 900 of file qocc3dwidget.cpp.

References myController, and selectionChanged().

Referenced by onLeftButtonUp(), and onMouseMove().

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void Qocc3dWidget::drawRubberBand	(	const QPoint	origin,
		const QPoint	position
	)			`[private]`

Draws the rubberband box This function is designed to reduce "flicker" as the box is redrawn, especially when the origin in the bottom corner of the window.

Parameters:

	origin	A QPoint defining the screen origin
	position	A QPoint defining the current cursor screen location

Definition at line 1064 of file qocc3dwidget.cpp.

References hideRubberBand(), myRubberBand, redraw(), and showRubberBand().

Referenced by onMouseMove().

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bool Qocc3dWidget::dump ( Standard_CString theFile )

Definition at line 946 of file qocc3dwidget.cpp.

References redraw().

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void Qocc3dWidget::error	(	int	errorCode,
		QString &	errorDescription
	)			`[signal]`

void Qocc3dWidget::fitAll ( void ) [slot]

Fits the model to view extents This function fits the current objects to the window, reducing or increasing the Z extents as needed.

Returns:: Nothing

Definition at line 449 of file qocc3dwidget.cpp.

References viewPrecision().

Referenced by newShape().

void Qocc3dWidget::fitArea ( void ) [slot]

Sets up the view for a rubberband window zoom.

Returns:: Nothing

Definition at line 464 of file qocc3dwidget.cpp.

References CurAction3d_WindowZooming, and setMode().

void Qocc3dWidget::fitExtents ( void ) [slot]

Just fits the current window This function just fits the current objects to the window, without either reducing or increasing the Z extents. This can cause clipping of the objects after rotation.

Returns:: Nothing

Definition at line 434 of file qocc3dwidget.cpp.

References viewPrecision().

QoccController* Qocc3dWidget::getController ( void ) [inline]

Definition at line 86 of file qocc3dwidget.h.

Referenced by QoccCmdPoint::clickEvent(), QoccCmdLine2Pt::clickEvent(), QoccCmdCircle2Pt::clickEvent(), QoccCmdLine2Pt::moveEvent(), and QoccCmdCircle2Pt::moveEvent().

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gp_Dir Qocc3dWidget::getDirection ( )

Definition at line 201 of file qocc3dwidget.cpp.

References myController.

Referenced by QoccCmdLine2Pt::clickEvent(), and QoccCmdCircle2Pt::clickEvent().

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gp_Pln Qocc3dWidget::getPlane ( )

Definition at line 206 of file qocc3dwidget.cpp.

References myController.

gp_Pnt Qocc3dWidget::getPoint ( )

Definition at line 211 of file qocc3dwidget.cpp.

References x(), y(), and z().

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void Qocc3dWidget::globalPan ( ) [slot]

Sets up the view for global panning, whatever that is!

Returns:: Nothing

Definition at line 500 of file qocc3dwidget.cpp.

References CurAction3d_GlobalPanning, myCurZoom, setMode(), and viewPrecision().

Qocc3dWidget::Handle ( Visual3d_View ) [private]

Qocc3dWidget::Handle ( V3d_View ) [private]

Qocc3dWidget::Handle ( V3d_View ) [inline]

Definition at line 89 of file qocc3dwidget.h.

Qocc3dWidget::Handle ( V3d_Viewer ) [inline]

Definition at line 88 of file qocc3dwidget.h.

Qocc3dWidget::Handle ( AIS_InteractiveContext ) [inline]

Definition at line 87 of file qocc3dwidget.h.

Referenced by initializeOCC().

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void Qocc3dWidget::hiddenLineOff ( ) [slot]

Definition at line 600 of file qocc3dwidget.cpp.

void Qocc3dWidget::hiddenLineOn ( ) [slot]

Definition at line 610 of file qocc3dwidget.cpp.

void Qocc3dWidget::hideRubberBand ( void ) [private]

Hides the rubberband box.

Definition at line 1087 of file qocc3dwidget.cpp.

References myRubberBand.

Referenced by drawRubberBand(), and mouseReleaseEvent().

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void Qocc3dWidget::idle ( ) [slot]

Go idle This called from various locations, and also exposed as a slot.

Definition at line 397 of file qocc3dwidget.cpp.

References CurAction3d_Nothing, and setMode().

void Qocc3dWidget::initialized ( ) [signal]

Referenced by initializeOCC().

void Qocc3dWidget::initializeOCC ( ) [protected]

The initializeOCC() procedure. This function creates the widget's view using the interactive context provided. Currently it also creates a trihedron object in the lower left corner - this will eventually be managed by an external system setting.

Parameters:

aContext

Handle to the AIS Interactive Context managing the view

Returns:: nothing

Definition at line 144 of file qocc3dwidget.cpp.

References CurAction3d_Nothing, Handle(), initialized(), myController, myViewInitialized, myViewResized, myWindow, paintCallBack(), and setMode().

Referenced by paintEvent().

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AIS_StatusOfPick Qocc3dWidget::inputEvent ( const bool multi = false ) [private]

This handles object highlighting during movement of the mouse across the view.

Parameters:

multi

Selects multiple objects if true (default false).

Returns:: The status of the objects under the cursor

Definition at line 927 of file qocc3dwidget.cpp.

References myController, and selectionChanged().

Referenced by onLeftButtonUp().

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Qt::KeyboardModifiers Qocc3dWidget::keyboard ( ) const [inline]

Definition at line 97 of file qocc3dwidget.h.

void Qocc3dWidget::leaveEvent ( QEvent * ) [protected, virtual]

A leave event is sent to the widget when the mouse cursor leaves the widget. This sub-classed event handler fixes redraws when gestures are interrupted by use of parent menus etc. (Candidate for change).

Parameters:

The event data

Definition at line 362 of file qocc3dwidget.cpp.

References myMouseFlags.

void Qocc3dWidget::mouseClicked	(	Qocc3dWidget *	widget,
		QMouseEvent *	e
	)			`[signal]`

Referenced by mouseReleaseEvent().

void Qocc3dWidget::mouseMoved	(	Qocc3dWidget *	widget,
		QMouseEvent *	e
	)			`[signal]`

Referenced by mouseMoveEvent().

void Qocc3dWidget::mouseMoveEvent ( QMouseEvent * e ) [protected, virtual]

Mouse move event, driven from application message loop.

Parameters:

The event data.

Definition at line 319 of file qocc3dwidget.cpp.

References convertToPlane(), QoccController::isDrawing(), mouseMoved(), myController, myCurrentPoint, myCurrentX, myCurrentY, myCurrentZ, myGridSnap, myKeyboardFlags, myMouseFlags, myMouseState, onMouseMove(), precision(), sendStatus(), and sendStatusLocation().

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void Qocc3dWidget::mousePressEvent ( QMouseEvent * e ) [protected, virtual]

Mouse press event.

Parameters:

The event data.

Definition at line 262 of file qocc3dwidget.cpp.

References myKeyboardFlags, myMouseFlags, myMouseState, onLeftButtonDown(), onMiddleButtonDown(), and onRightButtonDown().

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void Qocc3dWidget::mouseReleaseEvent ( QMouseEvent * e ) [protected, virtual]

Mouse release event.

Parameters:

The event data.

Definition at line 290 of file qocc3dwidget.cpp.

References CASCADESHORTCUTKEY, hideRubberBand(), mouseClicked(), myKeyboardFlags, myMouseFlags, myMouseState, onLeftButtonUp(), onMiddleButtonUp(), onRightButtonUp(), and redraw().

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AIS_StatusOfDetection Qocc3dWidget::moveEvent ( const QPoint point ) [private]

Move event detection handler.

Definition at line 886 of file qocc3dwidget.cpp.

References myController.

Referenced by onMouseMove().

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void Qocc3dWidget::newShape ( ) [slot]

Definition at line 1199 of file qocc3dwidget.cpp.

References fitAll().

void Qocc3dWidget::onLeftButtonDown	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

This function handles left button down events from the mouse.

Definition at line 653 of file qocc3dwidget.cpp.

Referenced by mousePressEvent().

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void Qocc3dWidget::onLeftButtonUp	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

This function handles left button up events from the mouse. This marks the end of the gesture.

Definition at line 727 of file qocc3dwidget.cpp.

References CASCADESHORTCUTKEY, CurAction3d_DynamicPanning, CurAction3d_DynamicRotation, CurAction3d_DynamicZooming, CurAction3d_GlobalPanning, CurAction3d_Nothing, CurAction3d_Picking, CurAction3d_WindowZooming, dragEvent(), inputEvent(), MULTISELECTIONKEY, myCurrentPoint, myCurZoom, myMode, myStartPoint, selectionChanged(), setMode(), ValZWMin, and viewPrecision().

Referenced by mouseReleaseEvent().

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void Qocc3dWidget::onMiddleButtonDown	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

This function handles middle button down events from the mouse.

Definition at line 697 of file qocc3dwidget.cpp.

References CASCADESHORTCUTKEY, CurAction3d_DynamicPanning, myStartPoint, and setMode().

Referenced by mousePressEvent().

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void Qocc3dWidget::onMiddleButtonUp	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

Middle button up event handler. This marks the end of the gesture.

Definition at line 792 of file qocc3dwidget.cpp.

References CurAction3d_Nothing, and setMode().

Referenced by mouseReleaseEvent().

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void Qocc3dWidget::onMouseMove	(	Qt::MouseButtons	buttons,
		Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

Mouse move event handler.

Parameters:

	buttons
	nFlags
	point

Returns:: Nothing

Definition at line 828 of file qocc3dwidget.cpp.

References CurAction3d_DynamicPanning, CurAction3d_DynamicRotation, CurAction3d_DynamicZooming, CurAction3d_GlobalPanning, CurAction3d_Nothing, CurAction3d_Picking, CurAction3d_WindowZooming, dragEvent(), drawRubberBand(), moveEvent(), MULTISELECTIONKEY, myCurrentPoint, myMode, myStartPoint, and viewPrecision().

Referenced by mouseMoveEvent().

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void Qocc3dWidget::onRightButtonDown	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

This function handles right button down events from the mouse.

Definition at line 709 of file qocc3dwidget.cpp.

References CASCADESHORTCUTKEY, CurAction3d_DynamicRotation, myStartPoint, popupMenu(), and setMode().

Referenced by mousePressEvent().

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void Qocc3dWidget::onRightButtonUp	(	Qt::KeyboardModifiers	nFlags,
		const QPoint	point
	)			`[private]`

Right button up event handler. This marks the end of the gesture.

Definition at line 801 of file qocc3dwidget.cpp.

References CASCADESHORTCUTKEY, CurAction3d_Nothing, myCurrentPoint, myMode, popupMenu(), and setMode().

Referenced by mouseReleaseEvent().

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int Qocc3dWidget::paintCallBack	(	Aspect_Drawable	,
		void *	,
		Aspect_GraphicCallbackStruct *
	)			`[static, private]`

Static OpenCascade callback proxy.

Definition at line 1097 of file qocc3dwidget.cpp.

References paintOCC().

Referenced by initializeOCC().

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QPaintEngine * Qocc3dWidget::paintEngine ( ) const

Returns a NULL QPaintEngine This should result in a minor performance benefit.

Definition at line 221 of file qocc3dwidget.cpp.

void Qocc3dWidget::paintEvent ( QPaintEvent * e ) [protected, virtual]

Paint Event Called when the Widget needs to repaint itself.

Parameters:

The event data.

Definition at line 231 of file qocc3dwidget.cpp.

References initializeOCC(), myViewInitialized, and redraw().

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void Qocc3dWidget::paintOCC ( ) [private]

The OpenGL paint routine in the callback.

Definition at line 1109 of file qocc3dwidget.cpp.

Referenced by paintCallBack().

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void Qocc3dWidget::pan ( void ) [slot]

Sets up the view for panning.

Returns:: Nothing

Definition at line 482 of file qocc3dwidget.cpp.

References CurAction3d_DynamicPanning, and setMode().

void Qocc3dWidget::popupMenu	(	const Qocc3dWidget *	aView,
		const QPoint	aPoint
	)			`[signal]`

Just a placeholder for now.

Referenced by onRightButtonDown(), and onRightButtonUp().

Standard_Real Qocc3dWidget::precision ( Standard_Real aReal ) [private]

This is a Utility function for rounding the input value to a specific DP.

Definition at line 992 of file qocc3dwidget.cpp.

References myPrecision, SIGN, and viewPrecision().

Referenced by mouseMoveEvent().

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void Qocc3dWidget::redraw ( bool isPainting = false )

The main redraw function This called from various locations.

Definition at line 405 of file qocc3dwidget.cpp.

References myMouseFlags, myViewResized, and viewPrecision().

Referenced by background(), drawRubberBand(), dump(), mouseReleaseEvent(), paintEvent(), and refresh().

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void Qocc3dWidget::refresh ( ) [slot]

Definition at line 1205 of file qocc3dwidget.cpp.

References redraw().

void Qocc3dWidget::resizeEvent ( QResizeEvent * e ) [protected, virtual]

Resize event. Called when the Widget needs to resize itself, but seeing as a paint event always follows a resize event, we'll move the work into the paint event.

Parameters:

The event data.

Definition at line 253 of file qocc3dwidget.cpp.

References myViewResized.

void Qocc3dWidget::rotation ( void ) [slot]

Sets up the view for dynamic rotation.

Returns:: Nothing

Definition at line 491 of file qocc3dwidget.cpp.

References CurAction3d_DynamicRotation, and setMode().

void Qocc3dWidget::selectionChanged ( ) [signal]

Referenced by dragEvent(), inputEvent(), and onLeftButtonUp().

void Qocc3dWidget::sendStatus ( const QString aMessage ) [signal]

Referenced by mouseMoveEvent(), sendStatusLocation(), and setStatusMessage().

void Qocc3dWidget::sendStatusLocation ( void ) [private]

Definition at line 1217 of file qocc3dwidget.cpp.

References myStatusMessage, sendStatus(), x(), y(), and z().

Referenced by mouseMoveEvent().

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void Qocc3dWidget::setMode ( const CurrentAction3d mode ) [private]

This function sets the current cursor for the given interraction mode.

Parameters:

mode

The interraction mode

Definition at line 956 of file qocc3dwidget.cpp.

References CurAction3d_DynamicPanning, CurAction3d_DynamicRotation, CurAction3d_DynamicZooming, CurAction3d_GlobalPanning, CurAction3d_Nothing, CurAction3d_WindowZooming, and myMode.

Referenced by fitArea(), globalPan(), idle(), initializeOCC(), onLeftButtonDown(), onLeftButtonUp(), onMiddleButtonDown(), onMiddleButtonUp(), onRightButtonDown(), onRightButtonUp(), pan(), rotation(), and zoom().

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void Qocc3dWidget::setProjection ( V3d_TypeOfOrientation orientation )

Definition at line 1226 of file qocc3dwidget.cpp.

Referenced by viewAxo(), viewBack(), viewBottom(), viewFront(), viewLeft(), viewRight(), viewTop(), and viewTopFront().

void Qocc3dWidget::setReset ( ) [slot]

Definition at line 641 of file qocc3dwidget.cpp.

References viewPrecision().

void Qocc3dWidget::setStatusMessage ( const QString & aString )

Definition at line 1211 of file qocc3dwidget.cpp.

References myStatusMessage, and sendStatus().

void Qocc3dWidget::showRubberBand ( void ) [private]

Shows the rubberband box.

Definition at line 1077 of file qocc3dwidget.cpp.

References myRubberBand.

Referenced by drawRubberBand().

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void Qocc3dWidget::viewAxo ( ) [slot]

View using axonometric projection.

Returns:: Nothing

Definition at line 582 of file qocc3dwidget.cpp.

References setProjection().

void Qocc3dWidget::viewBack ( ) [slot]

View from canonical "back".

Returns:: Nothing

Definition at line 540 of file qocc3dwidget.cpp.

References setProjection().

void Qocc3dWidget::viewBottom ( ) [slot]

View from canonical "bottom".

Returns:: Nothing

Definition at line 558 of file qocc3dwidget.cpp.

References setProjection().

void Qocc3dWidget::viewFront ( ) [slot]

View from canonical "front".

Returns:: Nothing

Definition at line 532 of file qocc3dwidget.cpp.

References setProjection().

void Qocc3dWidget::viewGrid ( ) [slot]

This aligns the view to the current privilege plane. Not so interesting at the moment, but wait until custom grid planes are implemented!

Returns:: Nothing

Definition at line 520 of file qocc3dwidget.cpp.

void Qocc3dWidget::viewLeft ( ) [slot]

View from canonical "left".

Returns:: Nothing

Definition at line 566 of file qocc3dwidget.cpp.

References setProjection().

Standard_Real Qocc3dWidget::viewPrecision ( bool resized = false ) [private]

This routine calculates the minimum sensible precision for the point selection routines, by setting an minumum resolution to a decade one higher than the equivalent pixel width.

Parameters:

resized

Indicates that recaculation os required due to state changes in the view.

Definition at line 1170 of file qocc3dwidget.cpp.

References myPrecision, myViewPrecision, and myWindow.

Referenced by fitAll(), fitExtents(), globalPan(), onLeftButtonUp(), onMouseMove(), precision(), redraw(), setReset(), and wheelEvent().

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