void Elevator::zeroOccupancy()
{
mOccupancy = 0;
textItem()->hide();
textItem()->setPlainText("0");
centerTextItem();
ellipseItem()->hide();
}
void Elevator::incrementOccupancy()
{
++mOccupancy;
if ( !textItem()->isVisible() ) textItem()->show();
textItem()->setPlainText( QString::number(mOccupancy) );
if ( !ellipseItem()->isVisible() ) ellipseItem()->show();
centerTextItem();
}
TextItem::TextItem() : RectItem(), alignment(Qt::AlignHCenter) {
textItem = new InternalTextItem (this);
textItem->setTextInteractionFlags(Qt::TextEditorInteraction);
// This item is focusable and passes the focus on to the child item
setFlag (QGraphicsItem::ItemIsFocusable);
setFocusProxy(textItem);
setFiltersChildEvents(true);
setInternalAlignment(Qt::AlignHCenter);
centerTextItem();
}
TextItem::TextItem(const QPointF& pos, QGraphicsItem * parent) :
RectItem(QRectF(pos.x(), pos.y(), 50, 30), parent), alignment(Qt::AlignHCenter) {
textItem = new InternalTextItem (this);
textItem->setTextInteractionFlags(Qt::TextEditorInteraction);
// This item is focusable and passes the focus on to the child item
setFlag (QGraphicsItem::ItemIsFocusable);
setFocusProxy(textItem);
setFiltersChildEvents(true);
setInternalAlignment(Qt::AlignHCenter);
centerTextItem();
}
Elevator::Elevator(Simulation& simulation, int number, QGraphicsScene &scene, const QPolygonF &elevatorPolygon) :
mSimulation(simulation),
mNumber(number),
mOccupancy(0),
mState(NORMAL_STATE),
mScene(scene),
mPolygonItem(0),
mTextItem(0),
mEllipseItem(0),
mAwayTextItem(0),
mBrokenTextItem(0),
mIsAllowedLeave(false),
mIsSimulationStopped(false),
mLeaveTimer(this)
{
// Constructs leave timer
mLeaveTimer.setSingleShot(true);
QObject::connect(&mLeaveTimer, SIGNAL(timeout()), this, SLOT(onLeave()));
// Polygon item
mPolygonItem = mScene.addPolygon(elevatorPolygon);
mPolygonItem->setPos( Simulation::ELEVATOR_SPACE + (mNumber * Simulation::ELEVATOR_FULL_WIDTH), 0 );
mPolygonItem->setBrush(Qt::yellow);
// Text item
mTextItem = mScene.addText("0");
centerTextItem();
mTextItem->hide();
// Ellipse item
mEllipseItem = mScene.addEllipse(Simulation::ELEVATOR_SPACE + 15 + (mNumber * Simulation::ELEVATOR_FULL_WIDTH), 40,
Simulation::PERSON_WIDTH, Simulation::PERSON_HEIGHT);
mEllipseItem->setBrush(Qt::green);
mEllipseItem->hide();
// Away text item
mAwayTextItem = mScene.addText("Away");
centerAwayTextItem();
mAwayTextItem->hide();
// Broken text item
mBrokenTextItem = mScene.addText("Broken");
centerBrokenTextItem();
mBrokenTextItem->hide();
}
void TextItem::readExternal(QXmlStreamReader& reader) {
RectItem::readExternal(reader);
reader.readNext(); // skip characters
// read the text
QXmlStreamReader::TokenType type = reader.readNext();
if (type == QXmlStreamReader::StartElement && reader.name() == "Text") {
// get the font
QString fontDesc = reader.attributes().value("font").toString();
QFont font;
font.fromString(fontDesc);
// get the alignment
alignment = static_cast<Qt::Alignment>(reader.attributes().value("align").toInt());
switch(alignment) {
case Qt::AlignLeft : break;
case Qt::AlignHCenter : break;
case Qt::AlignRight : break;
default : alignment = Qt::AlignLeft; break;
}
// get the color
QString color = reader.attributes().value("textColor").toString();
// read text and set it (before activating the properties, especially the alignment!)
reader.readNext();
textItem->setPlainText(reader.text().toString());
// activate properties
textItem->setFont(font);
textItem->setAlignment(alignment);
textItem->setDefaultTextColor(QColor(color));
// layout the text
centerTextItem();
}
}
void TextItem::moveHandle(AbstractEditHandle editHandle, const QPointF& scenePos) {
RectItem::moveHandle(editHandle, scenePos);
centerTextItem();
}
void TextItem::setText(const QString& text) {
textItem->setPlainText(text);
centerTextItem();
setInternalAlignment(alignment);
}
void TextItem::setInternalFont(const QFont& font) {
textItem->setFont(font);
centerTextItem();
}