// Adds a new layer above the current one
public UserLayer AddNewLayer(string name)
{
UserLayer layer;
if (string.IsNullOrEmpty(name))
{
layer = CreateLayer();
}
else
{
layer = CreateLayer(name);
}
UserLayers.Insert(current_layer + 1, layer);
if (UserLayers.Count == 1)
{
current_layer = 0;
}
layer.PropertyChanged += RaiseLayerPropertyChangedEvent;
PintaCore.Layers.OnLayerAdded();
return(layer);
}
// Adds a new layer above the current one
public void Insert(UserLayer layer, int index)
{
UserLayers.Insert(index, layer);
if (UserLayers.Count == 1)
{
current_layer = 0;
}
layer.PropertyChanged += RaiseLayerPropertyChangedEvent;
PintaCore.Layers.OnLayerAdded();
}
// Move current layer up
public void MoveCurrentLayerUp()
{
if (current_layer == UserLayers.Count)
{
throw new InvalidOperationException("Cannot move layer up because current layer is the top layer.");
}
UserLayer layer = CurrentUserLayer;
UserLayers.RemoveAt(current_layer);
UserLayers.Insert(++current_layer, layer);
PintaCore.Layers.OnSelectedLayerChanged();
Workspace.Invalidate();
}
// Move current layer down
public void MoveCurrentLayerDown()
{
if (current_layer == 0)
{
throw new InvalidOperationException("Cannot move layer down because current layer is the bottom layer.");
}
UserLayer layer = CurrentUserLayer;
UserLayers.RemoveAt(current_layer);
UserLayers.Insert(--current_layer, layer);
PintaCore.Layers.OnSelectedLayerChanged();
Workspace.Invalidate();
}
// Duplicate current layer
public UserLayer DuplicateCurrentLayer()
{
UserLayer source = CurrentUserLayer;
UserLayer layer = CreateLayer(string.Format("{0} {1}", source.Name, Catalog.GetString("copy")));
using (Cairo.Context g = new Cairo.Context(layer.Surface)) {
g.SetSource(source.Surface);
g.Paint();
}
layer.Hidden = source.Hidden;
layer.Opacity = source.Opacity;
layer.Tiled = source.Tiled;
UserLayers.Insert(++current_layer, layer);
layer.PropertyChanged += RaiseLayerPropertyChangedEvent;
PintaCore.Layers.OnLayerAdded();
return(layer);
}