/// Like BeginLineFromMemory + EndLineFromMemory
/// To help catch bugs in higher-level stroke code, it is considered
/// an error unless the stroke is in state NotCreated.
public void RecreateLineFromMemory(Stroke stroke)
{
if (stroke.m_Type != Stroke.Type.NotCreated)
{
throw new InvalidOperationException();
}
if (BeginLineFromMemory(stroke, stroke.Canvas) == null)
{
// Unclear why it would have failed, but okay.
// I guess we keep the old version?
Debug.LogError("Unexpected error recreating line");
return;
}
UpdateLineFromStroke(stroke);
// It's kind of warty that this needs to happen; brushes should probably track
// the mesh-dirty state and flush it in Finalize().
// TODO: Check if this is still necessary now that QuadStripBrushStretchUV
// flushes pending geometry changes in Finalize*Brush()
m_CurrentLine.ApplyChangesToVisuals();
// Copy in new contents
if (App.Config.m_UseBatchedBrushes && m_CurrentLine.m_bCanBatch)
{
var subset = m_CurrentLine.FinalizeBatchedBrush();
stroke.m_Type = Stroke.Type.BatchedBrushStroke;
stroke.m_IntendedCanvas = null;
Debug.Assert(stroke.m_Object == null);
stroke.m_BatchSubset = subset;
stroke.m_BatchSubset.m_Stroke = stroke;
m_CurrentLine.DestroyMesh();
Destroy(m_CurrentLine.gameObject);
}
else
{
m_CurrentLine.FinalizeSolitaryBrush();
stroke.m_Type = Stroke.Type.BrushStroke;
stroke.m_IntendedCanvas = null;
Debug.Assert(stroke.m_BatchSubset == null);
stroke.m_Object = m_CurrentLine.gameObject;
stroke.m_Object.GetComponent <BaseBrushScript>().Stroke = stroke;
}
m_CurrentLine = null;
}
/// Creates and returns a BatchSubset in the passed Canvas.
/// If stroke contains too many CPs to fit, it will be cut short.
/// This differs from what TB does, which is to create multiple subsets.
public static BatchSubset CreateSubsetFromStroke(CanvasScript canvas, Stroke stroke)
{
// See PointerScript.RecreateLineFromMemory
BrushDescriptor desc = BrushCatalog.m_Instance.GetBrush(stroke.m_BrushGuid);
var cp0 = stroke.m_ControlPoints[0];
var xf0 = TrTransform.TRS(cp0.m_Pos, cp0.m_Orient, stroke.m_BrushScale);
BaseBrushScript bbs = BaseBrushScript.Create(
canvas.transform, xf0, desc, stroke.m_Color, stroke.m_BrushSize);
try {
bbs.SetIsLoading();
Assert.True(bbs.Canvas != null);
foreach (var cp in stroke.m_ControlPoints)
{
bbs.UpdatePosition_LS(
TrTransform.TRS(cp.m_Pos, cp.m_Orient, stroke.m_BrushScale), cp.m_Pressure);
}
return(bbs.FinalizeBatchedBrush());
} finally {
UnityEngine.Object.DestroyImmediate(bbs.gameObject);
}
}