public void ScaleAt(float scaleX, float scaleY, Vex.Point center)
{
scaleX = (Math.Abs(scaleX) < .01) ? .01f : scaleX;
scaleY = (Math.Abs(scaleY) < .01) ? .01f : scaleY;
Matrix tm = TransformMatrix.Clone();
tm.Translate(-TransformMatrix.OffsetX, -TransformMatrix.OffsetY, MatrixOrder.Append);
Matrix itm = tm.Clone();
itm.Invert();
foreach (uint id in list)
{
DesignInstance inst = instanceManager[id];
using (Matrix ms = inst.GetMatrix().SysMatrix())
{
ms.Translate(-center.X, -center.Y, MatrixOrder.Append);
ms.Multiply(itm, MatrixOrder.Append);
ms.Scale(scaleX, scaleY, MatrixOrder.Append);
ms.Multiply(tm, MatrixOrder.Append);
ms.Translate(center.X, center.Y, MatrixOrder.Append);
inst.SetMatrix(ms.VexMatrix());
}
}
tm.Dispose();
itm.Dispose();
transformMatrix.ScaleAt(scaleX, scaleY, center.SysPointF());
isDirty = true;
MainForm.CurrentStage.InvalidateTransformedSelection();
}
private void TranslateElement(uint id, float newBoundsLeft, float newBoundsTop)
{
DesignInstance inst = instanceManager[id];
using (Matrix mr = inst.GetMatrix().SysMatrix())
{
mr.Translate(newBoundsLeft - inst.StrokeBounds.Left, newBoundsTop - inst.StrokeBounds.Top, MatrixOrder.Append);
inst.SetMatrix(mr.VexMatrix());
}
isDirty = true;
}
public void RotateAt(float angle, Vex.Point center)
{
foreach (uint id in list)
{
DesignInstance inst = instanceManager[id];
using (Matrix mr = inst.GetMatrix().SysMatrix())
{
mr.RotateAt(angle, center.SysPointF(), MatrixOrder.Append);
inst.SetMatrix(mr.VexMatrix());
}
}
transformMatrix.RotateAt(angle, center.SysPointF(), MatrixOrder.Append);
isDirty = true;
MainForm.CurrentStage.InvalidateTransformedSelection();
}