private void CheckLayerExist(LayerController layer)
{
if (!layers.Exists(x => x == layer))
{
throw new ArgumentException("This slice doesn't contain given layer.");
}
}
private void AddLayer(LayerController layer, int id = 0)
{
layers.Insert(id, layer);
for (int i = LayerCount - 1; i >= id; i -= 1)
{
layers[i].SetId(i);
}
}
private void RemoveLayer(LayerController layer)
{
int layerId = layer.GetId();
layers.RemoveAt(layerId);
for (int i = layerId; i < LayerCount; i += 1)
{
layers[i].SetId(i);
}
}
internal void SwapLayers(int id1, int id2)
{
layers[id1].SetId(id2);
layers[id2].SetId(id1);
LayerController layer1 = layers[id1];
layers[id1] = layers[id2];
layers[id2] = layer1;
UpdateUI();
}
internal void TransferLayer(LayerController layer, SliceController slice, int id = 0)
{
if (slice == this)
{
throw new ArgumentException("New slice can't be this slice.");
}
CheckLayerExist(layer);
int slicesStart, slicesEnd;
if (this.id < slice.id)
{
slicesStart = this.id;
slicesEnd = slice.id;
}
else
{
slicesStart = slice.id;
slicesEnd = this.id;
}
List <SliceController> slices = timeline.GetSlices(slicesStart, slicesEnd - slicesStart + 1);
RemoveLayer(layer);
slice.AddLayer(layer, id);
foreach (SliceController timelineSlice in slices)
{
timelineSlice.UpdateCache();
}
if (Disowning != null)
{
Disowning.Invoke(this, new DisownEventArgs(layer, slice));
}
foreach (SliceController timelineSlice in slices)
{
timelineSlice.UpdateUI();
timelineSlice.InvokeLocationChanged(new LocationChangeEventArgs(false, true));
}
InvokeSizeChanged();
slice.InvokeSizeChanged();
}
internal LayerController CreateLayer(int id)
{
LayerController layer = new LayerController(this, id);
AddLayer(layer, id);
UpdateCache();
List <SliceController> slices = timeline.GetSlices(this.id, timeline.SliceCount - this.id);
UpdateSlicesCache(slices);
UpdateSlicesUI(slices);
UpdateUI();
InvokeLocationChanged(new LocationChangeEventArgs(false, true));
InvokeSizeChanged();
return(layer);
}
internal void TransferItem(ItemController item, LayerController layer)
{
if (layer == this)
{
throw new ArgumentException("Layer can't be this layer.");
}
if (!items.Exists(x => x == item))
{
throw new ArgumentException("This layer doesn't contain given item.");
}
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
items.Remove(item);
layer.items.Add(item);
if (Disowning != null)
{
Disowning.Invoke(this, new DisownEventArgs(item, layer));
}
RectangleProvider.InvalidateContentContainerRectangle(item.Rectangle);
}
/// <summary>
/// Removes the layer from slice and deletes it. To move layer to another slice use TransferLayer() instead.
/// </summary>
internal void DeleteLayer(LayerController layer)
{
CheckLayerExist(layer);
RemoveLayer(layer);
layer.Delete();
if (layers.Count == 0)
{
AddLayer(new LayerController(this));
}
if (id < timeline.SliceCount)
{
List <SliceController> slices = timeline.GetSlices(id, timeline.SliceCount - id);
UpdateSlicesCache(slices);
UpdateSlicesUI(slices);
}
InvokeLocationChanged(new LocationChangeEventArgs(false, true));
InvokeSizeChanged();
rectangleProvider.Invalidate();
}
internal void SwapLayers(LayerController layer1, LayerController layer2)
{
SwapLayers(layer1.GetId(), layer2.GetId());
}
internal int GetLayerId(LayerController layer)
{
return(layers.IndexOf(layer));
}