/// <summary>
/// Draw a marquee-tool.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="resourceCreator"> The resource-creator. </param>
/// <param name="toolType"> The marquee-tool type. </param>
/// <param name="marqueeTool"> The marquee-tool. </param>
/// <param name="matrix"> The matrix. </param>
public static void DrawMarqueeTool(this CanvasDrawingSession drawingSession, ICanvasResourceCreator resourceCreator, MarqueeToolType toolType, MarqueeTool marqueeTool, Matrix3x2 matrix)
{
if (marqueeTool.IsStarted)
{
switch (toolType)
{
case MarqueeToolType.Rectangular:
{
TransformerRect transformerRect = marqueeTool.TransformerRect;
CanvasGeometry canvasGeometry = transformerRect.ToRectangle(resourceCreator, matrix);
drawingSession.DrawThickGeometry(canvasGeometry);
}
break;
case MarqueeToolType.Elliptical:
{
TransformerRect transformerRect = marqueeTool.TransformerRect;
CanvasGeometry canvasGeometry = transformerRect.ToEllipse(resourceCreator, matrix);
drawingSession.DrawThickGeometry(canvasGeometry);
}
break;
case MarqueeToolType.Polygonal:
{
Vector2[] points = marqueeTool.Points.ToArray();
CanvasGeometry canvasGeometry = CanvasGeometry.CreatePolygon(resourceCreator, points);
CanvasGeometry canvasGeometryTransform = canvasGeometry.Transform(matrix);
drawingSession.DrawThickGeometry(canvasGeometryTransform);
Vector2 firstPoint = Vector2.Transform(marqueeTool.Points.First(), matrix);
Vector2 lastPoint = Vector2.Transform(marqueeTool.Points.Last(), matrix);
drawingSession.DrawNode5(firstPoint);
drawingSession.DrawNode5(lastPoint);
}
break;
case MarqueeToolType.FreeHand:
{
Vector2[] points = marqueeTool.Points.ToArray();
CanvasGeometry canvasGeometry = CanvasGeometry.CreatePolygon(resourceCreator, points);
CanvasGeometry canvasGeometryTransform = canvasGeometry.Transform(matrix);
drawingSession.DrawThickGeometry(canvasGeometryTransform);
}
break;
}
}
}
/// <summary>
/// Draw a marquee-tool.
/// </summary>
/// <param name="drawingSession"> The drawing-session. </param>
/// <param name="resourceCreator"> The resource-creator. </param>
/// <param name="toolType"> The marquee-tool type. </param>
/// <param name="marqueeTool"> The marquee-tool. </param>
public static void DrawMarqueeTool(this CanvasDrawingSession drawingSession, ICanvasResourceCreator resourceCreator, MarqueeToolType toolType, MarqueeTool marqueeTool)
{
if (marqueeTool.IsStarted)
{
switch (toolType)
{
case MarqueeToolType.Rectangular:
{
Rect rect = marqueeTool.TransformerRect.ToRect();
drawingSession.DrawThickRectangle(rect);
}
break;
case MarqueeToolType.Elliptical:
{
Vector2 centerPoint = marqueeTool.TransformerRect.Center;
float width = marqueeTool.TransformerRect.Width / 2;
float height = marqueeTool.TransformerRect.Height / 2;
drawingSession.DrawThickEllipse(centerPoint, width, height);
}
break;
case MarqueeToolType.Polygonal:
{
Vector2[] points = marqueeTool.Points.ToArray();
CanvasGeometry canvasGeometry = CanvasGeometry.CreatePolygon(resourceCreator, points);
drawingSession.DrawThickGeometry(canvasGeometry);
Vector2 firstPoint = marqueeTool.Points.First();
Vector2 lastPoint = marqueeTool.Points.Last();
drawingSession.DrawNode5(firstPoint);
drawingSession.DrawNode5(lastPoint);
}
break;
case MarqueeToolType.FreeHand:
{
Vector2[] points = marqueeTool.Points.ToArray();
CanvasGeometry canvasGeometry = CanvasGeometry.CreatePolygon(resourceCreator, points);
drawingSession.DrawThickGeometry(canvasGeometry);
}
break;
}
}
}
/// <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;
}
}
}
