private void DrawBond(Bond bond, PointF pt, int handleIndex)
{
BondAttachment ba = BondAttachmentExtensions.GetTargetFromHandleIndex(handleIndex);
HandleIcon handleIcon = GetHandleIcon(bond.BondType, TransformKind.Scale);
if (handleIcon != HandleIcon.Anchor && handleIcon != HandleIcon.Spring)
{
float hr = handleSize / 2f;
int variationIndex = handleIndex % icons[(int)handleIcon].Length;
Point p = new Point((int)(pt.X - hr), (int)(pt.Y - hr));
graphicHolder.DrawImage(icons[(int)handleIcon][variationIndex], p);
}
long handleHash = bond.GetHandleHash(ba);
if (bondPoints.ContainsKey(handleHash))
{
// todo: need to allow vertical align inside horz dist chain (which will conflict on a handle).
Console.WriteLine("conflict handle: " + handleHash);
}
else
{
bondPoints.Add(handleHash, pt);
}
}
private void DrawSelectionHandles(Graphics g, PointF[] pts)
{
BondType[] bondTypes = (stage.Selection.Count == 1) ?
stage.CurrentEditItem.BondStore.GetHandlesForInstance(stage.Selection[0]) :
BondStore.emptyHandles;
float hr = handleSize / 2f;
for (int i = 0; i < pts.Length - 1; i++)
{
HandleIcon handleIcon = GetHandleIcon(bondTypes[i], transformKind);
// draw bond icons on separate pass
if (handleIcon == HandleIcon.Handle || handleIcon == HandleIcon.Rotate)
{
int variationIndex = i % icons[(int)handleIcon].Length;
Point loc = new Point((int)(pts[i].X - hr), (int)(pts[i].Y - hr));
g.DrawImage(icons[(int)handleIcon][variationIndex], loc);
if (AspectConstrainTarget != BondAttachment.None && AspectConstrainTarget.GetHandleIndex() == i)
{
g.DrawRectangle(selfConstraintTargetPen, new Rectangle(loc.X, loc.Y, handleSquare.Width, handleSquare.Height));
}
}
}
if (transformKind == Enums.TransformKind.Rotate)
{
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.PixelOffsetMode = PixelOffsetMode.Default;
// center dot
if (transformKind == TransformKind.Rotate)
{
PointF center = stage.RotationCenterToCamera;
Rectangle centerRect = new Rectangle(
(int)(center.X - hr),
(int)(center.Y - hr),
(int)(hr * 2),
(int)(hr * 2));
g.FillEllipse(Brushes.White, centerRect);
g.DrawEllipse(Pens.Black, centerRect);
}
}
}
