public FrameworkElement GetCustomNode()
{
var textBlock = new TextBlock()
{
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center
};
textBlock.SetBinding(TextBlock.TextProperty, new Binding()
{
Path = new PropertyPath("NodeName")
});
var ui = new Path();
ui.Stroke = Brushes.Black;
ui.StrokeThickness = 0.5;
ui.Fill = Brushes.Pink;
var converter = new GeometryConverter();
ui.Data = (Geometry)converter.ConvertFrom(NodeStyle["Geometry"]);
ui.Stretch = Stretch.Uniform;
var grid = new Grid();
grid.Children.Add(ui);
grid.Children.Add(textBlock);
return(grid);
}
/// <summary> Gets the geometry from string.
/// </summary>
/// <param name="text">The text.</param>
/// <returns></returns>
public static Geometry GetGeometry(string text)
{
if (String.IsNullOrEmpty(text))
{
return(null);
}
if (text.StartsWith(GeometryType.Path.ToString(), StringComparison.Ordinal))
{
string content = text.Substring(GeometryType.Path.ToString().Length + 1);
GeometryConverter conv = new GeometryConverter();
StreamGeometry streamGeometry = (StreamGeometry)conv.ConvertFrom(content);
PathGeometry geometry = streamGeometry.GetFlattenedPathGeometry();
return(geometry);
}
else if (text.StartsWith(GeometryType.Rectangle.ToString(), StringComparison.Ordinal))
{
string content = text.Substring(GeometryType.Rectangle.ToString().Length + 1);
string[] contents = content.Split(',');
RectangleGeometry geometry = new RectangleGeometry();
geometry.Rect = new Rect(Convert.ToDouble(contents[0], enUS),
Convert.ToDouble(contents[1], enUS),
Convert.ToDouble(contents[2], enUS),
Convert.ToDouble(contents[3], enUS)
);
return(geometry);
}
else if (text.StartsWith(GeometryType.Ellipse.ToString(), StringComparison.Ordinal))
{
string content = text.Substring(GeometryType.Ellipse.ToString().Length + 1);
string[] contents = content.Split(',');
EllipseGeometry geometry = new EllipseGeometry();
geometry.Center = new Point(Convert.ToDouble(contents[0], enUS) + Convert.ToDouble(contents[2], enUS) / 2.0, Convert.ToDouble(contents[1], enUS) + Convert.ToDouble(contents[3], enUS) / 2.0);
geometry.RadiusX = Convert.ToDouble(contents[2], enUS) / 2.0;
geometry.RadiusY = Convert.ToDouble(contents[3], enUS) / 2.0;
return(geometry);
}
else if (text.StartsWith("Text:", StringComparison.Ordinal))
{
string content = text.Substring("Text:".Length);
string[] contents = content.Split(',');
RectangleGeometry geometry = new RectangleGeometry();
geometry.Rect = new Rect(Convert.ToDouble(contents[0], enUS),
Convert.ToDouble(contents[1], enUS),
Convert.ToDouble(contents[2], enUS),
Convert.ToDouble(contents[3], enUS)
);
return(geometry);
}
else
{
throw new InvalidOperationException("This is not a valid geometry object in string");
}
}
public static FrameworkElement CreateContent(FlowNode node)
{
var textBlock = new TextBlock()
{
VerticalAlignment = VerticalAlignment.Center,
HorizontalAlignment = HorizontalAlignment.Center
};
var b = new Binding("Text");
b.Source = node;
textBlock.SetBinding(TextBlock.TextProperty, b);
if (node.Kind == NodeKinds.Start || node.Kind == NodeKinds.End)
{
var ui = new Border();
ui.CornerRadius = new CornerRadius(15);
ui.BorderBrush = Brushes.Black;
ui.BorderThickness = new Thickness(1);
ui.Background = Brushes.Yellow;
ui.Child = textBlock;
return(ui);
}
else if (node.Kind == NodeKinds.Action)
{
var ui = new Border();
ui.BorderBrush = Brushes.Black;
ui.BorderThickness = new Thickness(1);
ui.Background = Brushes.Lime;;
ui.Child = textBlock;
return(ui);
}
else
{
var ui = new Path();
ui.Stroke = Brushes.Black;
ui.StrokeThickness = 1;
ui.Fill = Brushes.Pink;
var converter = new GeometryConverter();
ui.Data = (Geometry)converter.ConvertFrom("M 0,0.25 L 0.5 0 L 1,0.25 L 0.5,0.5 Z");
ui.Stretch = Stretch.Uniform;
var grid = new Grid();
grid.Children.Add(ui);
grid.Children.Add(textBlock);
return(grid);
}
}
public void DrawGeometry_Cubic_Besier_Curve()
{
UserControl userControl = new UserControl();
userControl.Width = 320;
userControl.Height = 180;
DrawGeometryControl testControl = new DrawGeometryControl();
GeometryConverter converter = new GeometryConverter();
testControl.Geometry = (Geometry)converter.ConvertFrom("M 10,100 C 10,300 300,-200 300,100");
testControl.Brush = new SolidColorBrush(Colors.Gray);
testControl.Pen = new Pen(new SolidColorBrush(Colors.Black), 1);
userControl.Content = testControl;
this.RenderToFile(userControl);
this.CompareImages();
}
protected override void OnRender(DrawingContext dc)
{
var adornedElementRect = new Rect(AdornedElement.DesiredSize);
Brush edgeBrush;
Pen linePen;
switch (DropEffect)
{
case DragDropEffects.None: linePen = linePenNone; break;
case DragDropEffects.Move: linePen = linePenMove; break;
default: goto case DragDropEffects.Move;
}
switch (DropEffect)
{
case DragDropEffects.None: edgeBrush = edgeBrushNone; break;
case DragDropEffects.Move: edgeBrush = edgeBrushMove; break;
default: goto case DragDropEffects.Move;
}
// // Draw a circle at each corner.
// drawingContext.DrawEllipse(renderBrush, renderPen, adornedElementRect.TopLeft, renderRadius, renderRadius);
// drawingContext.DrawEllipse(renderBrush, renderPen, adornedElementRect.TopRight, renderRadius, renderRadius);
// drawingContext.DrawEllipse(renderBrush, renderPen, adornedElementRect.BottomLeft, renderRadius, renderRadius);
// drawingContext.DrawEllipse(renderBrush, renderPen, adornedElementRect.BottomRight, renderRadius, renderRadius);
var gc = new GeometryConverter();
switch (Position)
{
case DropPosition.Top:
//dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopLeft, renderRadius, renderRadius);
//dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopRight, renderRadius, renderRadius);
dc.DrawGeometry(edgeBrush, linePen, (Geometry)gc.ConvertFrom("M" + (adornedElementRect.TopRight.X).ToStringEnUs() + "," + ((int)adornedElementRect.TopRight.Y - 3).ToStringEnUs() + " l0,6 l-5,-3 z"));
dc.DrawLine(linePen, adornedElementRect.TopLeft, adornedElementRect.TopRight);
if (DropEffect == DragDropEffects.None)
{
dc.DrawEllipse(edgeBrush, edgePen, new Point(adornedElementRect.TopLeft.X, adornedElementRect.TopLeft.Y), 6, 6);
dc.DrawLine(edgePen2, new Point(adornedElementRect.TopLeft.X - 3, adornedElementRect.TopLeft.Y), new Point(adornedElementRect.TopLeft.X + 3, adornedElementRect.TopLeft.Y));
}
else
{
dc.DrawGeometry(edgeBrush, linePen, (Geometry)gc.ConvertFrom("M" + (adornedElementRect.TopLeft.X).ToStringEnUs() + "," + (adornedElementRect.TopLeft.Y - 3).ToStringEnUs() + " l0,6 l5,-3 z"));
}
break;
case DropPosition.Bottom:
//dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomLeft, renderRadius, renderRadius);
//dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomRight, renderRadius, renderRadius);
dc.DrawGeometry(edgeBrush, linePen, (Geometry)gc.ConvertFrom("M" + (adornedElementRect.BottomRight.X).ToStringEnUs() + "," + ((int)adornedElementRect.BottomRight.Y - 3).ToStringEnUs() + " l0,6 l-5,-3 z"));
dc.DrawLine(linePen, adornedElementRect.BottomLeft, adornedElementRect.BottomRight);
if (DropEffect == DragDropEffects.None)
{
dc.DrawEllipse(edgeBrush, edgePen, new Point(adornedElementRect.BottomLeft.X, adornedElementRect.BottomLeft.Y), 6, 6);
dc.DrawLine(edgePen2, new Point(adornedElementRect.BottomLeft.X - 3, adornedElementRect.BottomLeft.Y), new Point(adornedElementRect.BottomLeft.X + 3, adornedElementRect.BottomLeft.Y));
}
else
{
dc.DrawGeometry(edgeBrush, linePen, (Geometry)gc.ConvertFrom("M" + (adornedElementRect.BottomLeft.X).ToStringEnUs() + "," + (adornedElementRect.BottomLeft.Y - 3).ToStringEnUs() + " l0,6 l5,-3 z"));
}
break;
case DropPosition.Left:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopLeft, renderRadius, renderRadius);
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomLeft, renderRadius, renderRadius);
dc.DrawLine(linePen, adornedElementRect.TopLeft, adornedElementRect.BottomLeft);
break;
case DropPosition.Right:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopRight, renderRadius, renderRadius);
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomRight, renderRadius, renderRadius);
dc.DrawLine(linePen, adornedElementRect.TopRight, adornedElementRect.BottomRight);
break;
case DropPosition.BottomLeft:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomLeft, renderRadius, renderRadius);
break;
case DropPosition.BottomRight:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomRight, renderRadius, renderRadius);
break;
case DropPosition.TopLeft:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopLeft, renderRadius, renderRadius);
break;
case DropPosition.TopRight:
dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopRight, renderRadius, renderRadius);
break;
case DropPosition.Over:
// dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopLeft, renderRadius, renderRadius);
// dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.TopRight, renderRadius, renderRadius);
// dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomLeft, renderRadius, renderRadius);
// dc.DrawEllipse(edgeBrush, edgePen, adornedElementRect.BottomRight, renderRadius, renderRadius);
dc.DrawRectangle(null, linePen, adornedElementRect);
if (DropEffect == DragDropEffects.None)
{
// dc.DrawEllipse(edgeBrush, edgePen, new Point(adornedElementRect.TopLeft.X,adornedElementRect.TopLeft.Y), 6, 6);
// dc.DrawLine(edgePen2,new Point(adornedElementRect.TopLeft.X-3,adornedElementRect.TopLeft.Y), new Point(adornedElementRect.TopLeft.X+3,adornedElementRect.TopLeft.Y));
// dc.DrawEllipse(Brushes.White, edgePen, new Point(adornedElementRect.TopLeft.X,adornedElementRect.TopLeft.Y), 6, 6);
// dc.DrawEllipse(Brushes.White, new Pen(new SolidColorBrush(Colors.Red), 1.5), new Point(adornedElementRect.TopLeft.X,adornedElementRect.TopLeft.Y), 4, 4);
// dc.DrawLine(new Pen(new SolidColorBrush(Colors.Red), 1.5),new Point(adornedElementRect.TopLeft.X-3,adornedElementRect.TopLeft.Y-3), new Point(adornedElementRect.TopLeft.X+3,adornedElementRect.TopLeft.Y+3));
dc.DrawEllipse(Brushes.White, edgePen, new Point(adornedElementRect.TopLeft.X + 3.5, adornedElementRect.TopLeft.Y + 4), 6, 6);
dc.DrawEllipse(Brushes.White, new Pen(new SolidColorBrush(Colors.Red), 1.5), new Point(adornedElementRect.TopLeft.X + 4, adornedElementRect.TopLeft.Y + 4), 4, 4);
dc.DrawLine(new Pen(new SolidColorBrush(Colors.Red), 1.5), new Point(adornedElementRect.TopLeft.X + 1, adornedElementRect.TopLeft.Y + 1), new Point(adornedElementRect.TopLeft.X + 7, adornedElementRect.TopLeft.Y + 7));
}
break;
}
// drawingContext.DrawRectangle(renderBrush,renderPen,adornedElementRect);
}
protected override void OnRender(DrawingContext dc)
{
// double width = AdornedElement.DesiredSize.Width;
// double height = AdornedElement.DesiredSize.Height;
var adornedElementRect = new Rect(AdornedElement.DesiredSize);
// var renderBrush = new SolidColorBrush(Color.FromArgb(80, 255, 0, 0));
var renderPen1 = new Pen(new SolidColorBrush(Color.FromArgb(255, 255, 0, 0)), 1.5);
var renderPen2 = new Pen(new SolidColorBrush(Color.FromArgb(128, 255, 0, 0)), 2.5);
var renderPen3 = new Pen(new SolidColorBrush(Color.FromArgb(64, 255, 0, 0)), 3.5);
if (HasError)
{
dc.DrawRectangle(null, renderPen1, adornedElementRect);
adornedElementRect.Inflate(-2, -2);
dc.DrawRectangle(null, renderPen2, adornedElementRect);
adornedElementRect.Inflate(-3, -3);
dc.DrawRectangle(null, renderPen3, adornedElementRect);
dc.DrawGeometry(new SolidColorBrush(Colors.Yellow), new Pen(new SolidColorBrush(Colors.Black), 1), (Geometry)GeometryConverter.ConvertFrom("M0,7 L8,7 L4,0z"));
}
else
{
dc.DrawRectangle(null, new Pen(new SolidColorBrush(Color.FromArgb(255, 0, 128, 0)), 1.5), adornedElementRect);
}
var textPos = adornedElementRect.TopLeft; textPos.Offset(8, 0);
var typeface = new Typeface(new FontFamily("Sergeo UI"), FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
var textBrush = Brushes.Black;
if (!string.IsNullOrWhiteSpace(Text))
{
dc.DrawText(new FormattedText(Text, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, 12, textBrush), textPos);
}
}
public void DrawGeometry_Cubic_Besier_Curve()
{
UserControl userControl = new UserControl();
userControl.Width = 320;
userControl.Height = 180;
DrawGeometryControl testControl = new DrawGeometryControl();
GeometryConverter converter = new GeometryConverter();
testControl.Geometry = (Geometry)converter.ConvertFrom("M 10,100 C 10,300 300,-200 300,100");
testControl.Brush = new SolidColorBrush(Colors.Gray);
testControl.Pen = new Pen(new SolidColorBrush(Colors.Black), 1);
userControl.Content = testControl;
this.RenderToFile(userControl);
this.CompareImages();
}