Kwave::InvertableSpinBox Class Reference

#include <InvertableSpinBox.h>

Inheritance diagram for Kwave::InvertableSpinBox:

Collaboration diagram for Kwave::InvertableSpinBox:

Public Slots
virtual void	stepUp ()
virtual void	stepDown ()

Public Member Functions
	InvertableSpinBox (QWidget *parent)
virtual	~InvertableSpinBox ()
virtual void	setInverse (bool inverse)
virtual bool	inverse () const

Protected Slots
void	checkValueChange (int value)

Private Attributes
bool	m_inverse

Detailed Description

Definition at line 31 of file InvertableSpinBox.h.

Constructor & Destructor Documentation

InvertableSpinBox()

Kwave::InvertableSpinBox::InvertableSpinBox ( QWidget *  parent )

explicit

Constructor

Definition at line 26 of file InvertableSpinBox.cpp.

References checkValueChange(), and Kwave::connect().

    :QSpinBox(parent), m_inverse(false)
{
    connect(this, SIGNAL(valueChanged(int)),
            this, SLOT(checkValueChange(int)));
}

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~InvertableSpinBox()

virtual Kwave::InvertableSpinBox::~InvertableSpinBox ( )

inlinevirtual

Destructor

Definition at line 40 of file InvertableSpinBox.h.

        {
        }

Member Function Documentation

checkValueChange

void Kwave::InvertableSpinBox::checkValueChange ( int  value )

protectedslot

checks for range in inverse mode

Definition at line 51 of file InvertableSpinBox.cpp.

References m_inverse.

Referenced by InvertableSpinBox().

{
    if (m_inverse) {
        // in this case the real limits are tighter by 1
        if (value <= minimum()) setValue(minimum() + 1);
        if (value >= maximum()) setValue(maximum() - 1);
    }
}

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inverse()

virtual bool Kwave::InvertableSpinBox::inverse ( ) const

inlinevirtual

returns the current inversion state

Definition at line 48 of file InvertableSpinBox.h.

Referenced by setInverse().

{ return m_inverse; }

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setInverse()

void Kwave::InvertableSpinBox::setInverse ( bool  inverse )

virtual

enable/disable inverse mode

Definition at line 34 of file InvertableSpinBox.cpp.

References inverse(), and m_inverse.

{
    if (m_inverse == inverse) return; // nothing to do
    m_inverse = inverse;

    if (/* now */ inverse) {
        // relax limits by 1
        setMinimum(minimum() - 1);
        setMaximum(maximum() + 1);
    } else {
        // reduce limits by 1
        setMinimum(minimum() + 1);
        setMaximum(maximum() - 1);
    }
}

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stepDown

void Kwave::InvertableSpinBox::stepDown ( )

virtualslot

calls QSpinBox::stepDown() in normal mode and QSpinBox::stepUp() in inverse mode

Definition at line 71 of file InvertableSpinBox.cpp.

References m_inverse.

{
    if (m_inverse) {
        if (value() + 1 < maximum()) QSpinBox::stepUp();
    } else {
        QSpinBox::stepDown();
    }
}

stepUp

void Kwave::InvertableSpinBox::stepUp ( )

virtualslot

calls QSpinBox::stepUp() in normal mode and QSpinBox::stepDown() in inverse mode

Definition at line 61 of file InvertableSpinBox.cpp.

References m_inverse.

{
    if (m_inverse) {
        if (value() > minimum() + 1) QSpinBox::stepDown();
    } else {
        QSpinBox::stepUp();
    }
}

Member Data Documentation

m_inverse

bool Kwave::InvertableSpinBox::m_inverse

private

if true, spin buttons work in inverse mode

Definition at line 72 of file InvertableSpinBox.h.

Referenced by checkValueChange(), setInverse(), stepDown(), and stepUp().

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

• libgui/InvertableSpinBox.h
• libgui/InvertableSpinBox.cpp