void CreatePreviewLine()
{
UnityEngine.Profiling.Profiler.BeginSample("PointerScript.CreatePreviewLine");
if (m_PreviewLine == null && m_CurrentBrush.m_BrushPrefab != null)
{
// We don't have the transform for the line because it hasn't been created
// yet, but we can assume that the line transform == the canvas transform,
// since the line is parented to the canvas with an identity local transform.
// See also the TODO in GetTransformForLine; fixing that will resolve this wart.
Transform notReallyTheLineTransformButCloseEnough = App.Instance.m_CanvasTransform;
TrTransform xf_LS = GetTransformForLine(notReallyTheLineTransformButCloseEnough);
BaseBrushScript line = BaseBrushScript.Create(
App.Instance.m_CanvasTransform,
xf_LS,
m_CurrentBrush, m_CurrentColor, m_CurrentBrushSize);
line.gameObject.name = string.Format("Preview {0}", m_CurrentBrush.m_Description);
line.SetPreviewMode();
m_PreviewLine = line;
ResetPreviewProperties();
m_PreviewControlPoints.Clear();
}
UnityEngine.Profiling.Profiler.EndSample();
}
/// 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);
}
}
/// Pass a Canvas parent, and a transform in that canvas's space.
/// If overrideDesc passed, use that for the visuals -- m_CurrentBrush does not change.
public void CreateNewLine(CanvasScript canvas, TrTransform xf_CS,
ParametricStrokeCreator creator, BrushDescriptor overrideDesc = null)
{
// If straightedge is enabled, we may have a minimum size requirement.
// Initialize parametric stroke creator for our type of straightedge.
// Maybe change the brush to a proxy brush.
BrushDescriptor desc = overrideDesc != null ? overrideDesc : m_CurrentBrush;
m_CurrentCreator = creator;
// Parametric creators want control over the brush size.
if (m_CurrentCreator != null)
{
m_ParametricCreatorBackupStrokeSize = m_CurrentBrushSize;
m_CurrentBrushSize = m_CurrentCreator.ProcessBrushSize(m_CurrentBrushSize);
}
m_LastUsedBrushSize_CS = (1 / Coords.CanvasPose.scale) * BrushSizeAbsolute;
m_LineLength_CS = 0.0f;
float jitteredBrushSize = m_CurrentBrushSize;
if (PointerManager.m_Instance.JitterEnabled)
{
jitteredBrushSize = PointerManager.m_Instance.GenerateJitteredSize(desc, m_CurrentBrushSize);
}
m_CurrentLine = BaseBrushScript.Create(
canvas.transform, xf_CS,
desc, m_CurrentColor, jitteredBrushSize);
}