clearspinbox.cpp

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#include "./clearspinbox.h"
 
#include <QHBoxLayout>
#include <QStyle>
#include <QStyleOptionSpinBox>
 
namespace QtUtilities {


ClearSpinBox::ClearSpinBox(QWidget *parent)
    : QSpinBox(parent)
    , ButtonOverlay(this, lineEdit())
    , m_minimumHidden(false)
{
    ButtonOverlay::setClearButtonEnabled(true);
}

ClearSpinBox::~ClearSpinBox()
{
}

void ClearSpinBox::handleValueChanged(int value)
{
    updateClearButtonVisibility(value != minimum());
}
 
void ClearSpinBox::handleClearButtonClicked()
{
    setValue(minimum());
}
 
void ClearSpinBox::handleCustomLayoutCreated()
{
    const QStyle *const s = style();
    QStyleOptionSpinBox opt;
    opt.initFrom(this);
    setContentsMarginsFromEditFieldRectAndFrameWidth(
        s->subControlRect(QStyle::CC_SpinBox, &opt, QStyle::SC_SpinBoxEditField, this), s->pixelMetric(QStyle::PM_SpinBoxFrameWidth, &opt, this));
    connect(this, static_cast<void (ClearSpinBox::*)(int)>(&ClearSpinBox::valueChanged), this, &ClearSpinBox::handleValueChanged);
}
 
bool ClearSpinBox::isCleared() const
{
    return value() == minimum();
}
 
int ClearSpinBox::valueFromText(const QString &text) const
{
    if (m_minimumHidden && text.isEmpty()) {
        return minimum();
    } else {
        return QSpinBox::valueFromText(text);
    }
}
 
QString ClearSpinBox::textFromValue(int val) const
{
    if (m_minimumHidden && (val == minimum())) {
        return QString();
    } else {
        return QSpinBox::textFromValue(val);
    }
}
} // namespace QtUtilities