private void UpdateControl(D2dAdaptableControl source, D2dAdaptableControl target, Point cpt)
{
target.Context = source.Context;
if (target.Context == null) return;
// transform current mouse point to graph space.
var srcXform = source.As<ITransformAdapter>();
Matrix3x2F mtrx = Matrix3x2F.Invert(srcXform.Transform);
var gpt = Matrix3x2F.TransformPoint(mtrx, cpt);
var targetXform = target.As<ITransformAdapter>();
var csz = target.ClientSize;
PointF translation = new PointF(csz.Width / 2 - gpt.X * targetXform.Scale.X, csz.Height / 2 - gpt.Y * targetXform.Scale.Y);
targetXform.Translation = translation;
var edgeEditor = source.As<D2dGraphEdgeEditAdapter<Module, Connection, ICircuitPin>>();
m_activeEdgeEditor = (edgeEditor != null && edgeEditor.IsDraggingEdge) ? edgeEditor : null;
target.Invalidate();
}
private void Fit(D2dAdaptableControl control, RectangleF gBounds)
{
if (m_currentGraphBounds.IsEmpty) return;
var targetXform = control.As<ITransformAdapter>();
var crect = control.ClientRectangle;
crect.Inflate(-12, -12); // 8 pixels margin.
if (crect.Width < 1 || crect.Height < 1) return;
float sx = MathUtil.Clamp(crect.Width / gBounds.Width, targetXform.MinScale.X, targetXform.MaxScale.X);
float sy = MathUtil.Clamp(crect.Height / gBounds.Height, targetXform.MinScale.Y, targetXform.MaxScale.Y);
float scale = Math.Min(sx, sy);
crect.X += (int)(crect.Width - gBounds.Width * scale) / 2;
crect.Y += (int)(crect.Height - gBounds.Height * scale) / 2;
float tx = crect.X - gBounds.X * scale;
float ty = crect.Y - gBounds.Y * scale;
targetXform.SetTransform(scale, scale, tx, ty);
control.Invalidate();
}