/// <summary>
/// Draw nodes.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="manager"> StopsManager </param>
public void DrawNodes(CanvasDrawingSession drawingSession, StopsManager manager)
{
// Stops
for (int i = 0; i < manager.Count; i++)
{
CanvasGradientStop stop = manager.Stops[i];
Vector2 position = new Vector2(this.OffsetToPositionConverter(stop.Position), this.Center);
if (manager.Index == i)
{
drawingSession.FillCircle(position, 11, Colors.Black);
}
drawingSession.DrawNode2(position, stop.Color);
}
// Left
Vector2 left = new Vector2(this.Left, this.Center);
if (manager.IsLeft)
{
drawingSession.FillCircle(left, 11, Colors.Black);
}
drawingSession.DrawNode2(left, manager.LeftColor);
// Right
Vector2 right = new Vector2(this.Right, this.Center);
if (manager.IsRight)
{
drawingSession.FillCircle(right, 11, Colors.Black);
}
drawingSession.DrawNode2(right, manager.RightColor);
}
/// <summary>
/// Draw a ⊙.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="matrix"> The matrix. </param>
public void DrawNode2(CanvasDrawingSession drawingSession, Matrix3x2 matrix)
{
if (base.IsXSnap && base.IsYSnap)
{
drawingSession.DrawNode2(Vector2.Transform(base.Source, matrix), Colors.Gold);
}
else if (base.IsXSnap)
{
drawingSession.DrawNode2(Vector2.Transform(base.Source, matrix), Colors.Red);
}
else if (base.IsYSnap)
{
drawingSession.DrawNode2(Vector2.Transform(base.Source, matrix), Colors.LimeGreen);
}
}
private static void DrawBoundNodesCore(CanvasDrawingSession drawingSession, Vector2 leftTop, Vector2 rightTop, Vector2 rightBottom, Vector2 leftBottom, Windows.UI.Color accentColor, bool disabledRadian)
{
// Line
CanvasDrawingSessionExtensions.DrawBoundCore(drawingSession, leftTop, rightTop, rightBottom, leftBottom, accentColor);
// Center
Vector2 centerLeft = (leftTop + leftBottom) / 2;
Vector2 centerTop = (leftTop + rightTop) / 2;
Vector2 centerRight = (rightTop + rightBottom) / 2;
Vector2 centerBottom = (leftBottom + rightBottom) / 2;
// Scale2
drawingSession.DrawNode2(leftTop, accentColor);
drawingSession.DrawNode2(rightTop, accentColor);
drawingSession.DrawNode2(rightBottom, accentColor);
drawingSession.DrawNode2(leftBottom, accentColor);
if (disabledRadian == false)
{
// Outside
Vector2 outsideLeft = Math.GetOutsidePointInTransformer(centerLeft, centerRight);
Vector2 outsideTop = Math.GetOutsidePointInTransformer(centerTop, centerBottom);
Vector2 outsideRight = Math.GetOutsidePointInTransformer(centerRight, centerLeft);
Vector2 outsideBottom = Math.GetOutsidePointInTransformer(centerBottom, centerTop);
// Radian
drawingSession.DrawThickLine(outsideTop, centerTop);
drawingSession.DrawNode(outsideTop, accentColor);
// Skew
// drawingSession.DrawNode2(outsideTop, accentColor);
// drawingSession.DrawNode2(outsideLeft, accentColor);
drawingSession.DrawNode2(outsideRight, accentColor);
drawingSession.DrawNode2(outsideBottom, accentColor);
}
// Scale1
if (Math.OutNodeDistance(centerLeft, centerRight))
{
drawingSession.DrawNode2(centerTop, accentColor);
drawingSession.DrawNode2(centerBottom, accentColor);
}
if (Math.OutNodeDistance(centerTop, centerBottom))
{
drawingSession.DrawNode2(centerLeft, accentColor);
drawingSession.DrawNode2(centerRight, accentColor);
}
}
/// <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;
}
}
}
/// <summary>
/// Draw stops and lines between all control points.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="matrix"> The matrix. </param>
/// <param name="accentColor"> The accent color. </param>
public void Draw(CanvasDrawingSession drawingSession, Matrix3x2 matrix, Color accentColor)
{
switch (this.Type)
{
case BrushType.None: break;
case BrushType.Color:
break;
}
Vector2 center = Vector2.Transform(this.Center, matrix);
Vector2 xPoint = Vector2.Transform(this.XPoint, matrix);
Vector2 yPoint = Vector2.Transform(this.YPoint, matrix);
switch (this.Type)
{
case BrushType.LinearGradient:
case BrushType.RadialGradient:
{
// Line: white
drawingSession.DrawLine(center, yPoint, Windows.UI.Colors.White, 4);
// Circle: white
drawingSession.FillCircle(center, 10, Windows.UI.Colors.White);
drawingSession.FillCircle(yPoint, 10, Windows.UI.Colors.White);
// Line: accent
drawingSession.DrawLine(center, yPoint, accentColor, 2);
foreach (CanvasGradientStop stop in this.Stops)
{
Vector2 position = center * (1.0f - stop.Position) + yPoint * stop.Position;
// Circle: stop
drawingSession.FillCircle(position, 8, accentColor);
drawingSession.FillCircle(position, 6, stop.Color);
}
}
break;
case BrushType.EllipticalGradient:
{
// Line: white
drawingSession.DrawLine(center, xPoint, Colors.White, 4);
drawingSession.DrawLine(center, yPoint, Colors.White, 4);
// Circle: white
drawingSession.FillCircle(center, 10, Colors.White);
drawingSession.FillCircle(yPoint, 10, Colors.White);
// Line: accent
drawingSession.DrawLine(center, xPoint, accentColor, 2);
drawingSession.DrawLine(center, yPoint, accentColor, 2);
foreach (CanvasGradientStop stop in this.Stops)
{
Vector2 position = center * (1.0f - stop.Position) + yPoint * stop.Position;
// Circle: stop
drawingSession.FillCircle(position, 8, accentColor);
drawingSession.FillCircle(position, 6, stop.Color);
}
// Circle: node
drawingSession.DrawNode2(xPoint);
}
break;
case BrushType.Image:
{
// Line: white
drawingSession.DrawLine(center, xPoint, Colors.White, 4);
drawingSession.DrawLine(center, yPoint, Colors.White, 4);
// Line: accent
drawingSession.DrawLine(center, xPoint, Colors.LimeGreen, 2);
drawingSession.DrawLine(center, yPoint, Colors.Red, 2);
// Circle: node
drawingSession.DrawNode2(center);
drawingSession.DrawNode2(xPoint);
drawingSession.DrawNode2(yPoint);
}
break;
default:
break;
}
}