/// <summary>
/// Converts the given rectangle from the view into the world coordinate space.
/// </summary>
internal static RectD IntermediateToWorldCoordinates(CanvasControl canvas, RectD rect)
{
var p1 = GetRounded(canvas.IntermediateToWorldCoordinates(rect.GetTopLeft()));
var p2 = GetRounded(canvas.IntermediateToWorldCoordinates(rect.GetBottomRight()));
return(new RectD(p1.X, p1.Y, (int)Math.Max(0, p2.X - p1.X), (int)Math.Max(0, p2.Y - p1.Y)));
}
protected override GeneralPath GetOutline(INode node)
{
double size = Math.Min(node.Layout.Width, node.Layout.Height);
RectD bounds = new RectD(node.Layout.GetCenter().X - size / 2, node.Layout.GetCenter().Y - size / 2, size, size);
var path = new GeneralPath();
path.AppendEllipse(new RectD(bounds.GetTopLeft(), bounds.GetSize()), false);
return(path);
}
private static void DrawTrimmedString(IRenderContext context, VisualGroup group, string text, Font font, Brush brush, RectD box)
{
if (!box.IsEmpty)
{
group.Add(new TextVisual {
Text = text,
Font = font,
Format = new StringFormat {
Trimming = StringTrimming.EllipsisCharacter
},
Brush = brush,
Location = box.GetTopLeft()
});
}
}
protected override GeneralPath GetOutline(INode node)
{
double width = Math.Min(node.Layout.Width, node.Layout.Height / BpmnConstants.ConversationWidthHeightRatio);
double height = width * BpmnConstants.ConversationWidthHeightRatio;
RectD bounds = new RectD(node.Layout.GetCenter().X - width / 2, node.Layout.GetCenter().Y - height / 2, width, height);
var path = new GeneralPath();
path.MoveTo(0, 0.5);
path.LineTo(0.25, 0);
path.LineTo(0.75, 0);
path.LineTo(1, 0.5);
path.LineTo(0.75, 1);
path.LineTo(0.25, 1);
path.Close();
var transform = new Matrix2D();
transform.Translate(bounds.GetTopLeft());
transform.Scale(bounds.Width, bounds.Height);
path.Transform(transform);
return(path);
}
protected override void CollectGridSnapResults(GraphSnapContext context, CollectSnapResultsEventArgs args, RectD suggestedLayout, INode node)
{
AddGridSnapResult(context, args, suggestedLayout.GetTopLeft(), node);
}