GLViewer_ViewTransformer Class Reference

#include <GLViewer_Viewer.h>

Inheritance diagram for GLViewer_ViewTransformer:

Public Member Functions
	GLViewer_ViewTransformer (GLViewer_Viewer *, int type)
	~GLViewer_ViewTransformer ()
int	type () const
virtual void	exec ()
virtual bool	eventFilter (QObject *, QEvent *)
Static Public Member Functions
static int	accelKey ()
static void	setAccelKey (int k)
static int	zoomButton ()
static void	setZoomButton (int b)
static int	panButton ()
static void	setPanButton (int b)
static int	panGlobalButton ()
static void	setPanGlobalButton (int b)
static int	fitRectButton ()
static void	setFitRectButton (int b)
Protected Types
enum	TransformState { Debut, EnTrain, Fin }
Protected Member Functions
virtual void	onTransform (TransformState)
void	initTransform (bool)
void	drawRect (const QRect &theRect)
void	endDrawRect ()
	Delete rubber band on the end on the dragging operation.
Protected Attributes
GLViewer_Viewer *	myViewer
int	myType
QCursor	mySavedCursor
bool	mySavedMouseTrack
QPoint	myStart
QPoint	myCurr
int	myButtonState
int	myMajorBtn
QRubberBand *	myRectBand
	selection rectangle rubber band
Static Protected Attributes
static int	panBtn = Qt::MidButton
static int	zoomBtn = Qt::LeftButton
static int	fitRectBtn = Qt::LeftButton
static int	panGlobalBtn = Qt::LeftButton
static int	acccelKey = Qt::ControlModifier

---

Member Enumeration Documentation

enum GLViewer_ViewTransformer::TransformState [protected]

Enumerator:

Debut
EnTrain
Fin

---

Constructor & Destructor Documentation

GLViewer_ViewTransformer::GLViewer_ViewTransformer	(	GLViewer_Viewer *	v,
		int	type
	)

Constructor

References GLViewer_Viewer.FitRect, initTransform(), myType, GLViewer_Viewer.Pan, GLViewer_Viewer.PanGlobal, and GLViewer_Viewer.Zoom.

GLViewer_ViewTransformer::~GLViewer_ViewTransformer

(

)

Destructor

References endDrawRect(), GLViewer_Viewer.FitRect, initTransform(), myType, GLViewer_Viewer.Pan, GLViewer_Viewer.PanGlobal, and GLViewer_Viewer.Zoom.

---

Member Function Documentation

int GLViewer_ViewTransformer::type

(

)

const

Returns transformer type

Returns the type of the transformer. [ public ]

References myType.

static int GLViewer_ViewTransformer.accelKey

(

)

[static]

Sets/returns acceleration key ( CTRL by default )

static void GLViewer_ViewTransformer.setAccelKey

(

int

k

)

[static]

References test_big_table.k.

static int GLViewer_ViewTransformer.zoomButton

(

)

[static]

Sets/returns mouse button used for zooming ( MB1 by default )

static void GLViewer_ViewTransformer.setZoomButton

(

int

b

)

[static]

static int GLViewer_ViewTransformer.panButton

(

)

[static]

Sets/returns mouse button used for panning ( MB2 by default )

static void GLViewer_ViewTransformer.setPanButton

(

int

b

)

[static]

static int GLViewer_ViewTransformer.panGlobalButton

(

)

[static]

Sets/returns mouse button used for global pan ( MB1 by default )

static void GLViewer_ViewTransformer.setPanGlobalButton

(

int

b

)

[static]

static int GLViewer_ViewTransformer.fitRectButton

(

)

[static]

Sets/returns mouse button used for fit area ( MB1 by default )

static void GLViewer_ViewTransformer.setFitRectButton

(

int

b

)

[static]

void GLViewer_ViewTransformer::exec

(

)

[virtual]

Runs transfomation. Redefine to add your own 'instant' transforms ( for ex., 'FitAll' is an instant transform ). [ virtual public ]

Reimplemented in GLViewer_View2dTransformer.

References Fin, GLViewer_Viewer.FitAll, GLViewer_ViewPort.fitAll(), GLViewer_Viewer.FitRect, fitRectButton(), GLViewer_ViewPort.fitSelect(), GLViewer_Viewer.FitSelect, GLViewer_Viewer.getActiveView(), GLViewer_ViewPort.getHandCursor(), GLViewer_ViewPort.getPanCursor(), GLViewer_ViewPort.getPanglCursor(), GLViewer_ViewFrame.getViewPort(), GLViewer_ViewPort.getZoomCursor(), myMajorBtn, myType, myViewer, onTransform(), GLViewer_Viewer.Pan, panButton(), GLViewer_Viewer.PanGlobal, panGlobalButton(), GLViewer_ViewPort.reset(), GLViewer_Viewer.Reset, GLViewer_Viewer.Zoom, and zoomButton().

bool GLViewer_ViewTransformer::eventFilter	(	QObject *	o,
		QEvent *	e
	)		[virtual]

Catches mouse events for the viewport. [ virtual protected ]

References Debut, EnTrain, Fin, myButtonState, myCurr, myMajorBtn, myStart, and onTransform().

void GLViewer_ViewTransformer::onTransform

(

TransformState

state

)

[protected, virtual]

Transforms the viewport. Used for 'non-instant' transforms only( ex. Rotate, Pan etc ). [ virtual protected ]

Reimplemented in GLViewer_View2dTransformer.

References GLViewer_Viewer.activateTransform(), drawRect(), Fin, GLViewer_ViewPort.fitRect(), GLViewer_Viewer.FitRect, GLViewer_Viewer.getActiveView(), GLViewer_ViewFrame.getViewPort(), myButtonState, myCurr, myMajorBtn, myStart, myType, myViewer, GLViewer_Viewer.NoTransform, GLViewer_ViewPort.pan(), GLViewer_Viewer.Pan, GLViewer_Viewer.PanGlobal, GLViewer_ViewPort.setCenter(), GLViewer_ViewPort.zoom(), and GLViewer_Viewer.Zoom.

void GLViewer_ViewTransformer::initTransform

(

bool

init

)

[protected]

Inits long transformations ( Zoom, Pan etc ) [ protected ]

Saves viewport state( cursor etc ) and installs event filter to process mouse events if 'init' is true. Restores viewport state if 'init' is false.

References GLViewer_Viewer.getActiveView(), GLViewer_ViewFrame.getViewPort(), mySavedCursor, mySavedMouseTrack, and myViewer.

void GLViewer_ViewTransformer::drawRect

(

const QRect &

theRect

)

[protected]

Draws rectangle by starting and current points

References GLViewer_Viewer.getActiveView(), GLViewer_ViewFrame.getViewPort(), myRectBand, myViewer, and Plot2d.Rectangle.

void GLViewer_ViewTransformer::endDrawRect

(

)

[protected]

References myRectBand.

---

Field Documentation

int GLViewer_ViewTransformer::panBtn = Qt::MidButton [static, protected]

int GLViewer_ViewTransformer::zoomBtn = Qt::LeftButton [static, protected]

int GLViewer_ViewTransformer::fitRectBtn = Qt::LeftButton [static, protected]

int GLViewer_ViewTransformer::panGlobalBtn = Qt::LeftButton [static, protected]

int GLViewer_ViewTransformer::acccelKey = Qt::ControlModifier [static, protected]

GLViewer_Viewer* GLViewer_ViewTransformer.myViewer [protected]

int GLViewer_ViewTransformer.myType [protected]

QCursor GLViewer_ViewTransformer.mySavedCursor [protected]

bool GLViewer_ViewTransformer.mySavedMouseTrack [protected]

QPoint GLViewer_ViewTransformer.myStart [protected]

QPoint GLViewer_ViewTransformer.myCurr [protected]

int GLViewer_ViewTransformer.myButtonState [protected]

int GLViewer_ViewTransformer.myMajorBtn [protected]

QRubberBand* GLViewer_ViewTransformer.myRectBand [protected]