public virtual void CancelEdit()
{
if (mLabelEdit != null)
{
//Remove event handlers
mLabelEdit.Complete -= new EventHandler(mLabelEdit_Complete);
mLabelEdit.Cancel -= new EventHandler(mLabelEdit_Complete);
mLabelEdit.Visible = false;
this.Controls.Remove(mLabelEdit as System.Windows.Forms.Control);
mLabelEdit = null;
}
}
public virtual ILabelEdit StartEdit(Label label)
{
if (label == null) throw new ArgumentNullException("Label may not be null.");
if (label.Parent == null) throw new ModelException("Label cannot have null parent.");
if (label.Parent.Container == null) throw new ModelException("Label Parent container cannot be null.");
if (! (label.Parent is ILabelContainer)) throw new ModelException("Label Parent container must be an ILabelContainer object.");
if (mLabelEdit != null) return mLabelEdit;
//Set up control
mLabelEdit = Runtime.CreateLabelEdit();
if (! (mLabelEdit is System.Windows.Forms.Control)) throw new ModelException("Label editor does not inherit from System.Windows.Forms.Control.");
System.Windows.Forms.Control labelEdit = (System.Windows.Forms.Control) mLabelEdit;
this.Controls.Add(labelEdit);
mLabel = label;
//Set up location and size
Element parent = label.Parent;
ILabelContainer container = (ILabelContainer) parent;
PointF location = container.GetLabelLocation();
SizeF size = container.GetLabelSize();
//Offset the location for the container
location = new PointF(location.X + parent.Rectangle.X + parent.Container.Offset.X,location.Y + parent.Rectangle.Y + parent.Container.Offset.Y);
//Adjust the location and size to screen co-ordinates and pixels according to scale and units
location = new PointF(location.X * Render.ScaleFactor, location.Y * Render.ScaleFactor);
location = new PointF(location.X + DisplayRectangle.X,location.Y + DisplayRectangle.Y);
size = new SizeF(size.Width * Render.ScaleFactor, size.Height * Render.ScaleFactor);
//Adjust the location if the model is paged
if (Paged) location = new PointF(location.X + RenderPaged.PagedOffset.X, location.Y + RenderPaged.PagedOffset.Y);
labelEdit.Location = Point.Round(location);
labelEdit.Size = Size.Round(size);
labelEdit.Font = label.Font;
labelEdit.Text = label.Text;
if (label is TextLabel) mLabelEdit.StringFormat = ((TextLabel) label).GetStringFormat();
labelEdit.ForeColor = label.Color;
labelEdit.BackColor = Color.White;
mLabelEdit.Zoom = Zoom;
mLabelEdit.SendEnd();
//Set autosize causing correct size
if (parent is Link) mLabelEdit.AutoSize = Editing.AutoSizeMode.Horizontal;
//Set event handlers
mLabelEdit.Complete += new EventHandler(mLabelEdit_Complete);
mLabelEdit.Cancel += new EventHandler(mLabelEdit_Complete);
labelEdit.Visible = true;
labelEdit.Focus();
return mLabelEdit;
}