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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $TROLLTECH_DUAL_LICENSE$
**
****************************************************************************/
#include "menu.h"
Menu::Menu(QGraphicsItem *parent) : QGraphicsWidget(parent), m_selected(0)
{
setFlag(QGraphicsItem::ItemIsFocusable);
m_selection = new QGraphicsRectItem(this);
QLinearGradient linearGrad(QPointF(0, 0), QPointF(0,50));
linearGrad.setColorAt(0, QColor(255,255,255,128));
linearGrad.setColorAt(1, QColor(255,255,255,16));
m_selection->setBrush(linearGrad);
m_selection->setPen(QPen(Qt::transparent));
}
Menu::~Menu()
{
}
MenuAction *Menu::addAction(const QString &text, QObject *receiver, const char* slot)
{
MenuAction *action = new MenuAction(text, this);
if (!m_actions.isEmpty()) {
MenuAction *last = m_actions.last();
action->setPos(last->pos() + last->boundingRect().bottomLeft());
}
m_actions.append(action);
if (m_selection->boundingRect().width() < action->boundingRect().width())
m_selection->setRect(action->boundingRect());
QObject::connect(action, SIGNAL(triggered()), receiver, slot);
return action;
}
QRectF Menu::boundingRect() const
{
QRectF res;
foreach (MenuAction *a, m_actions)
res |= a->boundingRect();
return res;
}
void Menu::keyPressEvent (QKeyEvent * event)
{
switch (event->key()) {
case Qt::Key_Escape:
hide();
break;
case Qt::Key_Up:
m_selected -= 2;
case Qt::Key_Down:
if (!m_actions.isEmpty()) {
m_selected = (m_selected + 1 + m_actions.count()) % m_actions.count();
QItemAnimation *anim = new QItemAnimation(m_selection, QItemAnimation::Position);
anim->setEndValue(m_actions.at(m_selected)->pos());
anim->start(QAbstractAnimation::DeleteWhenStopped);
}
break;
case Qt::Key_Enter:
case Qt::Key_Return:
if (!m_actions.isEmpty()) {
QItemAnimation *anim = new QItemAnimation(m_selection, QItemAnimation::RotationX);
anim->setEndValue(m_selection->xRotation() < 180 ? qreal(360) : qreal(0));
anim->start(QAbstractAnimation::DeleteWhenStopped);
m_actions.at(m_selected)->trigger();
hide();
}
break;
default:
QGraphicsItem::keyPressEvent(event);
}
}
void Menu::show()
{
QItemAnimation *anim = new QItemAnimation(this, QItemAnimation::Opacity);
anim->setEndValue(qreal(1.));
anim->start(QAbstractAnimation::DeleteWhenStopped);
anim = new QItemAnimation(m_selection, QItemAnimation::ScaleFactorX);
anim->setEndValue(qreal(1));
anim->start(QAbstractAnimation::DeleteWhenStopped);
anim = new QItemAnimation(m_selection, QItemAnimation::ScaleFactorY);
anim->setEndValue(qreal(1));
anim->start(QAbstractAnimation::DeleteWhenStopped);
setFocus();
}
void Menu::hide()
{
QItemAnimation *anim = new QItemAnimation(m_selection, QItemAnimation::ScaleFactorX);
anim->setEndValue(qreal(.1));
anim->start(QAbstractAnimation::DeleteWhenStopped);
anim = new QItemAnimation(m_selection, QItemAnimation::ScaleFactorY);
anim->setEndValue(qreal(.1));
anim->start(QAbstractAnimation::DeleteWhenStopped);
anim = new QItemAnimation(this, QItemAnimation::Opacity);
anim->setEndValue(qreal(0));
anim->start(QAbstractAnimation::DeleteWhenStopped);
parentItem()->setFocus();
}
MenuAction::MenuAction(const QString &text, Menu * parent)
: QGraphicsTextItem(text,parent)
{
QFont f = font();
f.setPointSize(18);
setFont(f);
setDefaultTextColor(Qt::white);
}
void MenuAction::trigger()
{
emit triggered();
}
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