public void ShrinkEventTest()
{
CollectionSizeChangedResult changedResult = null;
int changedEventCount = 0;
_collection.OnSizeChanged += (sender, e) =>
{
changedResult = e;
changedEventCount++;
};
_collection.Shrink(5);
Assert.AreEqual(1, changedEventCount);
Assert.AreEqual(10, changedResult.sizeBefore);
Assert.AreEqual(5, changedResult.sizeAfter);
}
public void ExpandEventTest()
{
CollectionSizeChangedResult changedResult = null;
int changedEventCount = 0;
_collection.OnSizeChanged += (sender, e) =>
{
changedResult = e;
changedEventCount++;
};
_collection.Expand <CollectionSlot <IItemInstance> >(5);
Assert.AreEqual(1, changedEventCount);
Assert.AreEqual(10, changedResult.sizeBefore);
Assert.AreEqual(15, changedResult.sizeAfter);
}
protected virtual void OnCollectionSizeChanged(object sender, CollectionSizeChangedResult e)
{
logger.LogVerbose($"Collection {_collectionName} changed size from {e.sizeBefore} to {e.sizeAfter}. Resizing UI elements array...");
Array.Resize(ref repaintableElements, e.sizeAfter);
if (e.sizeAfter > e.sizeBefore)
{
// Generate new UI slots
for (int i = e.sizeBefore; i < e.sizeAfter; i++)
{
repaintableElements[i] = CreateUIElement(i);
RepaintOrQueue(i);
}
}
else if (e.sizeBefore > e.sizeAfter)
{
// Remove some ui slots
for (int i = e.sizeAfter; i < e.sizeBefore; i++)
{
DestroyUISlot(i);
}
}
}
protected void NotifyOnSizeChanged(object sender, CollectionSizeChangedResult data)
{
// TODO... implement this...
}