Kwave::LabelPropertiesWidget Class Reference

#include <LabelPropertiesWidget.h>

Inheritance diagram for Kwave::LabelPropertiesWidget:

Collaboration diagram for Kwave::LabelPropertiesWidget:

Public Member Functions
	LabelPropertiesWidget (QWidget *parent)
virtual	~LabelPropertiesWidget ()
virtual void	setLabelIndex (unsigned int index)
virtual void	setLabelPosition (sample_index_t pos, sample_index_t length, double rate)
virtual void	setLabelName (const QString &name)
virtual sample_index_t	labelPosition ()
virtual QString	labelName ()
void	saveSettings ()

Private Attributes
sample_index_t	m_length
double	m_sample_rate

Detailed Description

Definition at line 36 of file LabelPropertiesWidget.h.

Constructor & Destructor Documentation

LabelPropertiesWidget()

Kwave::LabelPropertiesWidget::LabelPropertiesWidget ( QWidget *  parent )

explicit

Constructor

Definition at line 38 of file LabelPropertiesWidget.cpp.

    :QDialog(parent), LabelPropertiesWidgetBase(),
     m_length(0), m_sample_rate(0)
{
    setupUi(this);
    Q_ASSERT(time);
    if (time) time->setTitle(QString());
    setFixedSize(sizeHint());

    // set the focus onto the "OK" button
    buttonBox->button(QDialogButtonBox::Ok)->setFocus();
}

~LabelPropertiesWidget()

Kwave::LabelPropertiesWidget::~LabelPropertiesWidget ( )

virtual

Destructor

Definition at line 52 of file LabelPropertiesWidget.cpp.

{
}

Member Function Documentation

labelName()

QString Kwave::LabelPropertiesWidget::labelName ( )

virtual

returns the label's name

Definition at line 115 of file LabelPropertiesWidget.cpp.

References _.

Referenced by Kwave::MainWidget::labelProperties().

{
    Q_ASSERT(edDescription);
    return (edDescription) ? edDescription->text() : _("");
}

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labelPosition()

sample_index_t Kwave::LabelPropertiesWidget::labelPosition ( )

virtual

returns the label position in samples

Definition at line 108 of file LabelPropertiesWidget.cpp.

Referenced by Kwave::MainWidget::labelProperties().

{
    Q_ASSERT(time);
    return (time) ? time->samples() : 0;
}

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saveSettings()

void Kwave::LabelPropertiesWidget::saveSettings

(

)

save the dialog's settings. currently only the mode of the time selection.

Definition at line 122 of file LabelPropertiesWidget.cpp.

References CONFIG_SECTION.

Referenced by Kwave::MainWidget::labelProperties().

{
    // restore the previous selection mode and set it
    KConfigGroup cfg = KSharedConfig::openConfig()->group(CONFIG_SECTION);
    QString str;
    str.setNum(static_cast<int>(time->mode()));
    cfg.writeEntry("mode", str);
    cfg.sync();
}

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setLabelIndex()

void Kwave::LabelPropertiesWidget::setLabelIndex ( unsigned int  index )

virtual

sets the index of the label (read-only property)

Parameters

index

label index [0...N-1]

Definition at line 57 of file LabelPropertiesWidget.cpp.

Referenced by Kwave::MainWidget::labelProperties().

{
    Q_ASSERT(lblIndex);
    if (lblIndex) lblIndex->setText(QString::number(index));
}

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setLabelName()

void Kwave::LabelPropertiesWidget::setLabelName ( const QString &  name )

virtual

sets the name/description of the label

Parameters

name	the name (string) of the label

Definition at line 101 of file LabelPropertiesWidget.cpp.

Referenced by Kwave::MainWidget::labelProperties().

{
    Q_ASSERT(edDescription);
    if (edDescription) edDescription->setText(name);
}

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setLabelPosition()

void Kwave::LabelPropertiesWidget::setLabelPosition ( sample_index_t  pos, sample_index_t  length, double  rate  )

virtual

sets the position of the label

Parameters

pos	the position of the label [samples]
length	length of the complete signal [samples]
rate	sample rate of the signal

Definition at line 64 of file LabelPropertiesWidget.cpp.

References Kwave::SelectTimeWidget::byPercents, Kwave::SelectTimeWidget::bySamples, CONFIG_SECTION, m_length, and m_sample_rate.

Referenced by Kwave::MainWidget::labelProperties().

{
    Q_ASSERT(time);
    if (!time) return;

    // store the length and rate, for calls to labelPosition()
    m_length = length;
    m_sample_rate = rate;

    // set the current position, always by samples
    time->init(Kwave::SelectTimeWidget::bySamples, pos, rate, 0, length);

    // restore the previous selection mode and set it
    const KConfigGroup cfg = KSharedConfig::openConfig()->group(CONFIG_SECTION);
    bool ok;
    QString str = cfg.readEntry("mode");
    unsigned int m = str.toUInt(&ok);
    if (!ok) return;
    Kwave::SelectTimeWidget::Mode mode =
        static_cast<Kwave::SelectTimeWidget::Mode>(m);

    // check if we stay on the requested location when switching to percent
    // mode. If the position would change, give the position precedence and
    // switch the mode back to "samples"
    if (mode == Kwave::SelectTimeWidget::byPercents) {
        quint64 p = time->samplesToTime(
            Kwave::SelectTimeWidget::bySamples, pos, rate, length);
        sample_index_t s = time->timeToSamples(mode, p, rate, length);
        if (s != pos) return;
    }

    // else: precise enough, use the previous mode
    time->setMode(mode);
}

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Member Data Documentation

m_length

sample_index_t Kwave::LabelPropertiesWidget::m_length

private

length of the signal, for transforming percentage -> samples

Definition at line 86 of file LabelPropertiesWidget.h.

Referenced by setLabelPosition().

m_sample_rate

double Kwave::LabelPropertiesWidget::m_sample_rate

private

sample rate, for transforming time -> samples

Definition at line 89 of file LabelPropertiesWidget.h.

Referenced by setLabelPosition().

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

• libgui/LabelPropertiesWidget.h
• libgui/LabelPropertiesWidget.cpp