Kwave::Zoomable Class Reference

#include <Zoomable.h>

Inheritance diagram for Kwave::Zoomable:

Collaboration diagram for Kwave::Zoomable:

Public Member Functions
	Zoomable ()
virtual	~Zoomable ()
virtual int	visibleWidth () const =0
virtual sample_index_t	visibleSamples () const =0
virtual double	zoom () const =0
virtual void	setZoom (double factor)=0
virtual void	scrollTo (sample_index_t pos)=0

Detailed Description

Definition at line 27 of file Zoomable.h.

Constructor & Destructor Documentation

Zoomable()

Kwave::Zoomable::Zoomable ( )

inline

default constructor

Definition at line 32 of file Zoomable.h.

{}

~Zoomable()

virtual Kwave::Zoomable::~Zoomable ( )

inlinevirtual

destructor

Definition at line 35 of file Zoomable.h.

References scrollTo(), setZoom(), visibleSamples(), visibleWidth(), and zoom().

{}

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Member Function Documentation

scrollTo()

virtual void Kwave::Zoomable::scrollTo ( sample_index_t  pos )

pure virtual

Scrolls the display so that the given position gets visible, centered within the display if possible.

Referenced by Kwave::FileContext::updatePlaybackPos(), and ~Zoomable().

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setZoom()

virtual void Kwave::Zoomable::setZoom ( double  factor )

pure virtual

Set a new zoom factor [samples/pixel]

Parameters

factor

new zoom value

Referenced by Kwave::ZoomToolBar::selectZoom(), and ~Zoomable().

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visibleSamples()

virtual sample_index_t Kwave::Zoomable::visibleSamples ( ) const

pure virtual

Returns the width of the current view in samples

Implemented in Kwave::MainWidget.

Referenced by Kwave::ZoomToolBar::setZoomInfo(), and ~Zoomable().

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visibleWidth()

virtual int Kwave::Zoomable::visibleWidth ( ) const

pure virtual

Returns the width of the visible area

Returns

width of visible area in pixels

Implemented in Kwave::MainWidget.

Referenced by Kwave::ZoomToolBar::selectZoom(), and ~Zoomable().

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zoom()

virtual double Kwave::Zoomable::zoom ( ) const

pure virtual

Returns the current zoom factor [samples/pixel]

Implemented in Kwave::MainWidget.

Referenced by Kwave::ZoomToolBar::selectZoom(), and ~Zoomable().

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

• libgui/Zoomable.h