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//=========================================================
// MusE
// Linux Music Editor
// $Id: combobox.cpp,v 1.4 2004/05/06 15:08:07 wschweer Exp $
// (C) Copyright 2004 Werner Schweer (ws@seh.de)
//=========================================================
#include <QMenu>
#include <QSignalMapper>
#include <QWheelEvent>
#include "combobox.h"
//---------------------------------------------------------
// ComboBox
//---------------------------------------------------------
ComboBox::ComboBox(QWidget* parent, const char* name)
: QToolButton(parent)
{
setObjectName(name);
_currentItem = 0;
menu = new QMenu(this);
autoTypeSignalMapper = new QSignalMapper(this);
connect(autoTypeSignalMapper, SIGNAL(mapped(int)), this, SLOT(activatedIntern(int)));
}
ComboBox::~ComboBox()
{
delete menu;
}
//---------------------------------------------------------
// mousePressEvent
//---------------------------------------------------------
void ComboBox::mousePressEvent(QMouseEvent* /*ev*/)
{
menu->exec(QCursor::pos());
}
//---------------------------------------------------------
// wheelEvent
//---------------------------------------------------------
void ComboBox::wheelEvent(QWheelEvent* ev)
{
int i = itemlist.indexOf(_currentItem);
int len = itemlist.count();
if (ev->delta() > 0 && i > 0)
activatedIntern(_currentItem-1);
else if (ev->delta() < 0 && -1 < i && i < len - 1)
activatedIntern(_currentItem+1);
}
//---------------------------------------------------------
// activated
//---------------------------------------------------------
void ComboBox::activatedIntern(int id)
{
setCurrentItem(id);
emit activated(id);
}
//---------------------------------------------------------
// setCurrentItem
//---------------------------------------------------------
void ComboBox::setCurrentItem(int id)
{
QAction* act = (QAction*) autoTypeSignalMapper->mapping(id);
_currentItem = id;
setText(act->text());
}
//---------------------------------------------------------
// insertItem
//---------------------------------------------------------
void ComboBox::addAction(const QString& s, int id)
{
QAction *act = menu->addAction(s);
connect(act, SIGNAL(triggered()), autoTypeSignalMapper, SLOT(map()));
autoTypeSignalMapper->setMapping(act, id);
itemlist << id;
}
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