/**
* Inserts map object items for the given objects.
*/
void MapScene::objectsInserted(ObjectGroup *objectGroup, int first, int last)
{
ObjectGroupItem *ogItem = nullptr;
// Find the object group item for the object group
for (QGraphicsItem *item : mLayerItems) {
if (ObjectGroupItem *ogi = dynamic_cast<ObjectGroupItem*>(item)) {
if (ogi->objectGroup() == objectGroup) {
ogItem = ogi;
break;
}
}
}
Q_ASSERT(ogItem);
const ObjectGroup::DrawOrder drawOrder = objectGroup->drawOrder();
for (int i = first; i <= last; ++i) {
MapObject *object = objectGroup->objectAt(i);
MapObjectItem *item = new MapObjectItem(object, mMapDocument, ogItem);
if (drawOrder == ObjectGroup::TopDownOrder)
item->setZValue(item->y());
else
item->setZValue(i);
mObjectItems.insert(object, item);
}
}
QGraphicsItem *MapScene::createLayerItem(Layer *layer)
{
QGraphicsItem *layerItem = nullptr;
if (TileLayer *tl = layer->asTileLayer()) {
layerItem = new TileLayerItem(tl, mMapDocument);
} else if (ObjectGroup *og = layer->asObjectGroup()) {
const ObjectGroup::DrawOrder drawOrder = og->drawOrder();
ObjectGroupItem *ogItem = new ObjectGroupItem(og);
int objectIndex = 0;
for (MapObject *object : og->objects()) {
MapObjectItem *item = new MapObjectItem(object, mMapDocument,
ogItem);
if (drawOrder == ObjectGroup::TopDownOrder)
item->setZValue(item->y());
else
item->setZValue(objectIndex);
mObjectItems.insert(object, item);
++objectIndex;
}
layerItem = ogItem;
} else if (ImageLayer *il = layer->asImageLayer()) {
layerItem = new ImageLayerItem(il, mMapDocument);
}
Q_ASSERT(layerItem);
layerItem->setVisible(layer->isVisible());
return layerItem;
}
LayerItem *MapItem::createLayerItem(Layer *layer)
{
LayerItem *layerItem = nullptr;
QGraphicsItem *parent = this;
if (layer->parentLayer())
parent = mLayerItems.value(layer->parentLayer());
switch (layer->layerType()) {
case Layer::TileLayerType:
layerItem = new TileLayerItem(static_cast<TileLayer*>(layer), mapDocument(), parent);
break;
case Layer::ObjectGroupType: {
auto og = static_cast<ObjectGroup*>(layer);
const ObjectGroup::DrawOrder drawOrder = og->drawOrder();
ObjectGroupItem *ogItem = new ObjectGroupItem(og, parent);
int objectIndex = 0;
for (MapObject *object : og->objects()) {
MapObjectItem *item = new MapObjectItem(object, mapDocument(),
ogItem);
if (drawOrder == ObjectGroup::TopDownOrder)
item->setZValue(item->y());
else
item->setZValue(objectIndex);
mObjectItems.insert(object, item);
++objectIndex;
}
layerItem = ogItem;
break;
}
case Layer::ImageLayerType:
layerItem = new ImageLayerItem(static_cast<ImageLayer*>(layer), mapDocument(), parent);
break;
case Layer::GroupLayerType:
layerItem = new GroupLayerItem(static_cast<GroupLayer*>(layer), parent);
break;
}
Q_ASSERT(layerItem);
layerItem->setVisible(layer->isVisible());
layerItem->setEnabled(mDisplayMode == Editable);
mLayerItems.insert(layer, layerItem);
if (GroupLayer *groupLayer = layer->asGroupLayer())
createLayerItems(groupLayer->layers());
return layerItem;
}
/**
* Updates the Z value of the objects when appropriate.
*/
void MapScene::objectsIndexChanged(ObjectGroup *objectGroup,
int first, int last)
{
if (objectGroup->drawOrder() != ObjectGroup::IndexOrder)
return;
for (int i = first; i <= last; ++i) {
MapObjectItem *item = itemForObject(objectGroup->objectAt(i));
Q_ASSERT(item);
item->setZValue(i);
}
}
ObjectGroupItem(ObjectGroup *objectGroup, MapRenderer *renderer,
QGraphicsItem *parent = nullptr)
: QGraphicsItem(parent)
{
setFlag(QGraphicsItem::ItemHasNoContents);
setPos(objectGroup->offset());
const ObjectGroup::DrawOrder drawOrder = objectGroup->drawOrder();
// Create a child item for each object
for (MapObject *object : objectGroup->objects()) {
MapObjectItem *item = new MapObjectItem(object, renderer, this);
if (drawOrder == ObjectGroup::TopDownOrder)
item->setZValue(item->y());
}
}