public void GroupSelectedBlocks()
{
if (!SelectedBlocks.Any())
{
return;
}
var relatedSegments = Enumerable.Select(SelectedBlocks, b => b.SegmentContext).Distinct().ToList();
MusicSegment segmentForGroup = (relatedSegments.Count == 1 ? relatedSegments.Single().GetModel() : model.MusicSegments[0]);
var group = new LoopBlock(model);
group.SegmentContext = segmentForGroup;
group.StartTime = SelectedBlocks.Min(b => b.StartTime);
foreach (var b in SelectedBlocks)
{
// create an independent copy of the block so transforming its time to local reference frame does not screw up undo
Block newChild = Block.FromXML(model, b.GetModel().ToXML());
group.AddChild(newChild, true);
}
using (ActionManager.CreateTransaction())
{
DeleteSelectedBlocks();
ActionManager.RecordAdd(model.Blocks, group);
}
SelectBlock(BlockViewModel.FromModel(this, group), CompositionMode.None);
}
// type may be null, then the target will be auto-inferred based on currently selected blocks
public void ConvertSelectedBlocksTo(string type)
{
bool rampsToColors = (type == "color");
bool colorsToRamps = (type == "ramp");
if (!rampsToColors && !colorsToRamps)
{
colorsToRamps = SelectedBlocks.Any(b => b is ColorBlockViewModel);
rampsToColors = SelectedBlocks.Any(b => b is RampBlockViewModel);
if (colorsToRamps && rampsToColors)
{
throw new ArgumentException("type needs to be given when both color and ramp blocks are selected");
}
}
using (ActionManager.CreateTransaction())
{
for (int i = 0; i < SelectedBlocks.Count; i++)
{
var block = SelectedBlocks[i].GetModel();
Block convertedBlock;
if (rampsToColors && block is RampBlock rampBlock)
{
convertedBlock = new ColorBlock(model, rampBlock.Tracks.ToArray())
{
Color = (rampBlock.StartColor == GloColor.Black ? rampBlock.EndColor : rampBlock.StartColor)
};
}
else if (colorsToRamps && block is ColorBlock colorBlock)
{
convertedBlock = new RampBlock(model, colorBlock.Tracks.ToArray())
{
StartColor = colorBlock.Color,
EndColor = (colorBlock.Color == GloColor.White ? GloColor.Black : GloColor.White)
};
}
else
{
continue;
}
// copy generic properties
convertedBlock.StartTime = block.StartTime;
convertedBlock.Duration = block.Duration;
convertedBlock.SegmentContext = block.SegmentContext;
ActionManager.RecordReplace(model.Blocks, block, convertedBlock);
SelectedBlocks[i] = BlockViewModel.FromModel(this, convertedBlock);
}
}
}