private void AddDraw(CanvasDrawingSession drawingSession)
{
ILayer layer = this.CurveLayer;
Matrix3x2 matrix = this.ViewModel.CanvasTransformer.GetMatrix();
Vector2 lastPoint = Vector2.Transform(this._addLastNode.Point, matrix);
Vector2 endPoint = Vector2.Transform(this._addEndNode.Point, matrix);
// Geometry
ICanvasBrush canvasBrush = layer.Style.Stroke.GetICanvasBrush(LayerManager.CanvasDevice);
float strokeWidth = layer.Style.StrokeWidth;
CanvasStrokeStyle strokeStyle = layer.Style.StrokeStyle;
drawingSession.DrawLine(lastPoint, endPoint, canvasBrush, strokeWidth, strokeStyle);
// Draw
drawingSession.DrawLine(lastPoint, endPoint, this.ViewModel.AccentColor);
drawingSession.DrawWireframe(layer, matrix, this.ViewModel.AccentColor);
drawingSession.DrawNode3(endPoint);
drawingSession.DrawNodeCollection(layer.Nodes, matrix, this.ViewModel.AccentColor);
// Snapping
if (this.IsSnap)
{
this.Snap.Draw(drawingSession, matrix);
this.Snap.DrawNode2(drawingSession, matrix);
}
}
private void PreviewDraw(CanvasDrawingSession drawingSession)
{
Matrix3x2 matrix = this.ViewModel.CanvasTransformer.GetMatrix();
Vector2 lineLeft = Vector2.Transform(this._previewLeft, matrix);
if (this._hasPreviewTempLeftPoint)
{
drawingSession.DrawNode3(lineLeft);
}
else
{
Vector2 lineRight = Vector2.Transform(this._previewRight, matrix);
drawingSession.DrawLine(lineLeft, lineRight, this.ViewModel.AccentColor);
drawingSession.DrawNode3(lineLeft);
drawingSession.DrawNode3(lineRight);
}
}
/// <summary>
/// Draw bezier-curve by NodeCollection.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="nodeCollection"> The NodeCollection. </param>
/// <param name="matrix"> The matrix. </param>
/// <param name="accentColor"> The accent color. </param>
public static void DrawNodeCollection(this CanvasDrawingSession drawingSession, NodeCollection nodeCollection, Matrix3x2 matrix, Windows.UI.Color accentColor)
{
foreach (Node node in nodeCollection)
{
switch (node.Type)
{
case NodeType.BeginFigure:
{
Vector2 vector = Vector2.Transform(node.Point, matrix);
if (node.IsChecked == false)
{
if (node.IsSmooth == false)
{
drawingSession.DrawNode3(vector, Windows.UI.Colors.Gold);
}
else
{
drawingSession.DrawNode(vector, Windows.UI.Colors.Gold);
}
}
else
{
if (node.IsSmooth == false)
{
drawingSession.DrawNode4(vector, Windows.UI.Colors.Gold);
}
else
{
//Right
Vector2 rightControlPoint = Vector2.Transform(node.RightControlPoint, matrix);
drawingSession.DrawLine(vector, rightControlPoint, accentColor);
drawingSession.DrawNode5(rightControlPoint, Windows.UI.Colors.Gold);
//Left
Vector2 leftControlPoint = Vector2.Transform(node.LeftControlPoint, matrix);
drawingSession.DrawLine(vector, leftControlPoint, accentColor);
drawingSession.DrawNode5(leftControlPoint, Windows.UI.Colors.Gold);
drawingSession.DrawNode2(vector, Windows.UI.Colors.Gold);
}
}
}
break;
case NodeType.Node:
{
Vector2 vector = Vector2.Transform(node.Point, matrix);
if (node.IsChecked == false)
{
if (node.IsSmooth == false)
{
drawingSession.DrawNode3(vector, accentColor);
}
else
{
drawingSession.DrawNode(vector, accentColor);
}
}
else
{
if (node.IsSmooth == false)
{
drawingSession.DrawNode4(vector, accentColor);
}
else
{
//Right
Vector2 rightControlPoint = Vector2.Transform(node.RightControlPoint, matrix);
drawingSession.DrawLine(vector, rightControlPoint, accentColor);
drawingSession.DrawNode5(rightControlPoint, accentColor);
//Left
Vector2 leftControlPoint = Vector2.Transform(node.LeftControlPoint, matrix);
drawingSession.DrawLine(vector, leftControlPoint, accentColor);
drawingSession.DrawNode5(leftControlPoint, accentColor);
drawingSession.DrawNode2(vector, accentColor);
}
}
}
break;
case NodeType.EndFigure:
break;
}
}
}