CKnob Class Reference

a knob control More...

#include <vstcontrols.h>

Inheritance diagram for CKnob:

CControl CView CReferenceCounter CAnimKnob List of all members.

Public Member Functions

 CKnob (const CRect &size, CControlListener *listener, long tag, CBitmap *background, CBitmap *handle, const CPoint &offset)
virtual ~CKnob ()
virtual void draw (CDrawContext *pContext)
 called if the view should draw itself
virtual void mouse (CDrawContext *pContext, CPoint &where, long button=-1)
 called if a mouse click event occurs
virtual bool onWheel (CDrawContext *pContext, const CPoint &where, float distance)
 called if a mouse wheel event is happening over this view
virtual long onKeyDown (VstKeyCode &keyCode)
 called if a key down event occurs and this view has focus
virtual void drawHandle (CDrawContext *pContext)
virtual void setStartAngle (float val)
virtual float getStartAngle () const
virtual void setRangeAngle (float val)
virtual float getRangeAngle () const
virtual void valueToPoint (CPoint &point) const
virtual float valueFromPoint (CPoint &point) const
virtual void setInsetValue (long val)
virtual void setColorShadowHandle (CColor color)
virtual void setColorHandle (CColor color)
virtual void setHandleBitmap (CBitmap *bitmap)
virtual void setZoomFactor (float val)
virtual float getZoomFactor () const

Protected Member Functions

void compute ()

Protected Attributes

CPoint offset
CColor colorHandle
CColor colorShadowHandle
CBitmappHandle
long inset
float startAngle
float rangeAngle
float halfAngle
float aCoef
float bCoef
float radius
float zoomFactor

Detailed Description

a knob control

Define a knob with a given background and foreground handle. The handle describes a circle over the background (between -45deg and +225deg). By clicking Alt+Left Mouse the default value is used. By clicking Alt+Left Mouse the value changes with a vertical move (version 2.1)


Constructor & Destructor Documentation

CKnob::CKnob const CRect size,
CControlListener listener,
long  tag,
CBitmap background,
CBitmap handle,
const CPoint offset
 

CKnob::~CKnob  )  [virtual]
 


Member Function Documentation

void CKnob::compute  )  [protected]
 

void CKnob::draw CDrawContext pContext  )  [virtual]
 

called if the view should draw itself

Implements CControl.

Reimplemented in CAnimKnob.

void CKnob::drawHandle CDrawContext pContext  )  [virtual]
 

virtual float CKnob::getRangeAngle  )  const [inline, virtual]
 

virtual float CKnob::getStartAngle  )  const [inline, virtual]
 

virtual float CKnob::getZoomFactor  )  const [inline, virtual]
 

void CKnob::mouse CDrawContext pContext,
CPoint where,
long  button = -1
[virtual]
 

called if a mouse click event occurs

Reimplemented from CView.

long CKnob::onKeyDown VstKeyCode keyCode  )  [virtual]
 

called if a key down event occurs and this view has focus

Reimplemented from CView.

bool CKnob::onWheel CDrawContext pContext,
const CPoint where,
float  distance
[virtual]
 

called if a mouse wheel event is happening over this view

Reimplemented from CView.

void CKnob::setColorHandle CColor  color  )  [virtual]
 

void CKnob::setColorShadowHandle CColor  color  )  [virtual]
 

void CKnob::setHandleBitmap CBitmap bitmap  )  [virtual]
 

virtual void CKnob::setInsetValue long  val  )  [inline, virtual]
 

void CKnob::setRangeAngle float  val  )  [virtual]
 

void CKnob::setStartAngle float  val  )  [virtual]
 

virtual void CKnob::setZoomFactor float  val  )  [inline, virtual]
 

float CKnob::valueFromPoint CPoint point  )  const [virtual]
 

void CKnob::valueToPoint CPoint point  )  const [virtual]
 


Member Data Documentation

float CKnob::aCoef [protected]
 

float CKnob::bCoef [protected]
 

CColor CKnob::colorHandle [protected]
 

CColor CKnob::colorShadowHandle [protected]
 

float CKnob::halfAngle [protected]
 

long CKnob::inset [protected]
 

CPoint CKnob::offset [protected]
 

CBitmap* CKnob::pHandle [protected]
 

float CKnob::radius [protected]
 

float CKnob::rangeAngle [protected]
 

float CKnob::startAngle [protected]
 

float CKnob::zoomFactor [protected]
 


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

Copyright ©2006 Steinberg Media Technologies. All Rights Reserved.