source: flair-src/trunk/tools/FlairGCS/src/DoubleSpinBox.cpp@ 10

// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
#include "DoubleSpinBox.h"
#include "Layout.h"
#include <QLineEdit>
#include <QMenu>
#include <QContextMenuEvent>
#include <QDoubleSpinBox>
#include <QFormLayout>

DoubleSpinBox::DoubleSpinBox(Layout* parent,int row, int col,QString name,QString suffix,QString value,float min,float max,float step,int decimals): FormLayout(parent,row,col,name,"DoubleSpinBox")
{
    doublespinbox = new QDoubleSpinBox();

    doublespinbox->setRange(min,max);
    doublespinbox->setSingleStep(step);
    doublespinbox->setDecimals(decimals);
    if(suffix!="") doublespinbox->setSuffix(suffix);
    adjust_decimals(value);
    doublespinbox->setValue(value.toDouble());
    doublespinbox_value=doublespinbox->cleanText();

    //event filter for qdoublespinbox and its child (qlinedit and incremnt qbuttons)
    doublespinbox->installEventFilter(this);
    QObjectList o_list = doublespinbox->children();
    for(int i = 0; i < o_list.length(); i++)
    {
        QLineEdit *cast = qobject_cast<QLineEdit*>(o_list[i]);
        if(cast)
            cast->installEventFilter(this);
    }

    object_layout->addRow(name,doublespinbox);

    connect(doublespinbox,SIGNAL(valueChanged(const QString &)),this, SLOT(valuechanged(const QString &)));

    SetValue(value);
}

DoubleSpinBox::~DoubleSpinBox()
{
    delete doublespinbox;
}

void DoubleSpinBox::adjust_decimals(QString value)
{
    //auto adjust decimals
    QLocale locale;
    value.remove(locale.groupSeparator());

    QStringList parts = value.split(locale.decimalPoint());
    if(parts.count() == 2)
    {
        doublespinbox->setDecimals(parts[1].size());
    }
}

bool DoubleSpinBox::eventFilter(QObject *object, QEvent *event)
{
    if(object==doublespinbox && event->type()==QEvent::MouseButtonPress)
    {
        if (((QMouseEvent*)event)->button() == Qt::RightButton)
        {
            QMenu * menu = new QMenu("menu", doublespinbox);
            QAction *a,*b,*c,*z;

            a=menu->addAction("add decimal");
            b=menu->addAction("remove decimal");

            if(doublespinbox->decimals()==0) b->setEnabled(false);
            z=menu->exec(((QMouseEvent*)event)->globalPos());

            if(z==a) doublespinbox->setDecimals(doublespinbox->decimals()+1);
            if(z==b) doublespinbox->setDecimals(doublespinbox->decimals()-1);
            delete menu;
            return true;
        }
    }

    return object->eventFilter(object, event);
}

void DoubleSpinBox::SetUptodate(void)
{
    ui_to_var();
    ui_to_xml();
    visible_widget->setPalette(black_pal);
}

void DoubleSpinBox::ui_to_var(void)
{
    doublespinbox_value=doublespinbox->cleanText();
}

void DoubleSpinBox::ui_to_xml(void)
{
    SetValue(doublespinbox->cleanText());
}

void DoubleSpinBox::Reset(void)
{
    //le setvalue fait un arrondi pour l'affichage, la variable n'est donc plus egale
    //on reprend la valeur de la boite et on force la couleur a noir
    adjust_decimals(doublespinbox_value);
    doublespinbox->setValue(doublespinbox_value.toDouble());
    doublespinbox_value= doublespinbox->cleanText();
    visible_widget->setPalette(black_pal);

}

void DoubleSpinBox::LoadEvent(QDomElement dom)
{
    if(doublespinbox->isEnabled()==true)
    {
        doublespinbox->setValue((dom.attribute("value")).toDouble());
    }
}

void DoubleSpinBox::valuechanged(const QString &value)
{
    if(value!=doublespinbox_value)
    {
        visible_widget->setPalette(red_pal);
    }
    else
    {
        visible_widget->setPalette(black_pal);
    }
}