void MapObjectItem::syncWithMapObject()
{
// Update the whole object when the name or type has changed
if (mObject->name() != mName || mObject->type() != mType) {
mName = mObject->name();
mType = mObject->type();
update();
mResizeHandle->update();
}
QString toolTip = mName;
if (!mType.isEmpty())
toolTip += QLatin1String(" (") + mType + QLatin1String(")");
setToolTip(toolTip);
MapRenderer *renderer = mMapDocument->renderer();
const QPointF pixelPos = renderer->tileToPixelCoords(mObject->position());
QRectF bounds = renderer->boundingRect(mObject);
bounds.translate(-pixelPos);
mSyncing = true;
setPos(pixelPos);
if (mBoundingRect != bounds) {
// Notify the graphics scene about the geometry change in advance
prepareGeometryChange();
mBoundingRect = bounds;
const QPointF bottomRight = mObject->bounds().bottomRight();
const QPointF handlePos = renderer->tileToPixelCoords(bottomRight);
mResizeHandle->setPos(handlePos - pixelPos);
}
mSyncing = false;
}
QVariant MapObjectItem::itemChange(GraphicsItemChange change,
const QVariant &value)
{
if (!mSyncing) {
MapRenderer *renderer = mMapDocument->renderer();
if (change == ItemPositionChange
&& (QApplication::keyboardModifiers() & Qt::ControlModifier))
{
const QPointF pixelDiff = value.toPointF() - mOldItemPos;
const QPointF newPixelPos =
renderer->tileToPixelCoords(mOldObjectPos) + pixelDiff;
// Snap the position to the grid
const QPointF newTileCoords =
renderer->pixelToTileCoords(newPixelPos).toPoint();
return renderer->tileToPixelCoords(newTileCoords);
}
else if (change == ItemPositionHasChanged) {
// Update the position of the map object
const QPointF pixelDiff = value.toPointF() - mOldItemPos;
const QPointF newPixelPos =
renderer->tileToPixelCoords(mOldObjectPos) + pixelDiff;
mObject->setPosition(renderer->pixelToTileCoords(newPixelPos));
}
}
return QGraphicsItem::itemChange(change, value);
}
void MapObjectItem::syncWithMapObject()
{
// Update the whole object when the name or polygon has changed
if (mObject->name() != mName || mObject->polygon() != mPolygon) {
mName = mObject->name();
mPolygon = mObject->polygon();
update();
}
const QColor color = objectColor(mObject);
if (mColor != color) {
mColor = color;
update();
mResizeHandle->update();
}
QString toolTip = mName;
const QString &type = mObject->type();
if (!type.isEmpty())
toolTip += QLatin1String(" (") + type + QLatin1String(")");
setToolTip(toolTip);
MapRenderer *renderer = mMapDocument->renderer();
const QPointF pixelPos = renderer->tileToPixelCoords(mObject->position());
QRectF bounds = renderer->boundingRect(mObject);
bounds.translate(-pixelPos);
setPos(pixelPos);
setZValue(pixelPos.y());
setRotation(mObject->rotation());
setTransformOriginPoint(objectCenter());
mSyncing = true;
if (mBoundingRect != bounds) {
// Notify the graphics scene about the geometry change in advance
prepareGeometryChange();
mBoundingRect = bounds;
const QPointF bottomRight = mObject->bounds().bottomRight();
const QPointF handlePos = renderer->tileToPixelCoords(bottomRight);
mResizeHandle->setPos(handlePos - pixelPos);
}
mSyncing = false;
setVisible(mObject->isVisible());
}
QVariant ResizeHandle::itemChange(GraphicsItemChange change,
const QVariant &value)
{
if (!mMapObjectItem->mSyncing) {
MapRenderer *renderer = mMapObjectItem->mapDocument()->renderer();
if (change == ItemPositionChange) {
// Calculate the absolute pixel position
const QPointF itemPos = mMapObjectItem->pos();
QPointF pixelPos = value.toPointF() + itemPos;
// Calculate the new coordinates in tiles
QPointF tileCoords = renderer->pixelToTileCoords(pixelPos);
const QPointF objectPos = mMapObjectItem->mapObject()->position();
tileCoords -= objectPos;
tileCoords.setX(qMax(tileCoords.x(), qreal(0)));
tileCoords.setY(qMax(tileCoords.y(), qreal(0)));
if (QApplication::keyboardModifiers() & Qt::ControlModifier)
tileCoords = tileCoords.toPoint();
tileCoords += objectPos;
return renderer->tileToPixelCoords(tileCoords) - itemPos;
}
else if (change == ItemPositionHasChanged) {
// Update the size of the map object
const QPointF newPos = value.toPointF() + mMapObjectItem->pos();
QPointF tileCoords = renderer->pixelToTileCoords(newPos);
tileCoords -= mMapObjectItem->mapObject()->position();
mMapObjectItem->resize(QSizeF(tileCoords.x(), tileCoords.y()));
}
}
return QGraphicsItem::itemChange(change, value);
}
