/// <summary>
/// This is called while the user is dragging the mouse and when the user releases the mouse.
/// </summary>
/// <param name="evttype">A value of <c>GoInputState.Start</c> when called from <see cref="M:Northwoods.Go.GoToolResizing.Start" />,
/// a value of <c>GoInputState.Continue</c> when called from <see cref="M:Northwoods.Go.GoToolResizing.DoMouseMove" />, and
/// a value of <c>GoInputState.Finish</c> when called from <see cref="M:Northwoods.Go.GoToolResizing.DoMouseUp" />.</param>
/// <remarks>
/// Basically this just calls <see cref="M:Northwoods.Go.GoObject.DoResize(Northwoods.Go.GoView,System.Drawing.RectangleF,System.Drawing.PointF,System.Int32,Northwoods.Go.GoInputState,System.Drawing.SizeF,System.Drawing.SizeF)" /> on the
/// <see cref="P:Northwoods.Go.GoTool.CurrentObject" />. Objects are responsible for their
/// own resize behavior.
/// However, this calls <see cref="M:Northwoods.Go.GoView.SnapPoint(System.Drawing.PointF,Northwoods.Go.GoObject)" /> to adjust the
/// input event point to make sure the current resize point is a valid one
/// according to whatever grids there are.
/// </remarks>
public virtual void DoResizing(GoInputState evttype)
{
if (base.CurrentObject != null)
{
GoInputEventArgs lastInput = base.LastInput;
lastInput.DocPoint = base.View.SnapPoint(lastInput.DocPoint, base.CurrentObject);
lastInput.ViewPoint = base.View.ConvertDocToView(lastInput.DocPoint);
GoObject currentObject = base.CurrentObject;
RectangleF bounds = currentObject.Bounds;
currentObject.DoResize(base.View, OriginalBounds, lastInput.DocPoint, ResizeHandle.HandleID, evttype, MinimumSize, MaximumSize);
if (!mySelectionHidden && ((bounds == currentObject.Bounds && currentObject.Document == base.View.Document) || currentObject.View == base.View))
{
currentObject.AddSelectionHandles(base.Selection, mySelectedObject);
}
}
}
/// <summary>
/// Call <see cref="M:Northwoods.Go.GoObject.AddSelectionHandles(Northwoods.Go.GoSelection,Northwoods.Go.GoObject)" /> on the
/// <see cref="P:Northwoods.Go.GoObject.SelectionObject" /> of each selected object
/// if <see cref="M:Northwoods.Go.GoObject.CanView" /> is true, or call
/// <see cref="M:Northwoods.Go.GoObject.RemoveSelectionHandles(Northwoods.Go.GoSelection)" /> otherwise.
/// </summary>
/// <seealso cref="M:Northwoods.Go.GoSelection.RemoveAllSelectionHandles" />
public void AddAllSelectionHandles()
{
using (GoCollectionEnumerator goCollectionEnumerator = GetEnumerator())
{
while (goCollectionEnumerator.MoveNext())
{
GoObject current = goCollectionEnumerator.Current;
GoObject selectionObject = current.SelectionObject;
if (selectionObject != null)
{
if (current.CanView())
{
selectionObject.AddSelectionHandles(this, current);
}
else
{
selectionObject.RemoveSelectionHandles(this);
}
}
}
}
}
/// <summary>
/// Restore the selection handles on the link.
/// </summary>
public override void Stop()
{
if (mySelectionHidden)
{
mySelectionHidden = false;
GoObject currentObject = base.CurrentObject;
if (currentObject != null && currentObject.Document == base.View.Document)
{
GoObject goObject = base.Link.GoObject;
if (!base.Selection.Contains(goObject))
{
base.Selection.Add(goObject);
}
else
{
currentObject.AddSelectionHandles(base.Selection, goObject);
}
}
}
base.CurrentObject = null;
base.Stop();
}
/// <summary>
/// Clean up this resizing tool's state.
/// </summary>
/// <remarks>
/// This removes any visible resize box, restores the selection handles if needed,
/// and stops the transaction (either aborting or finishing it).
/// </remarks>
public override void Stop()
{
base.View.DrawXorBox(default(Rectangle), drawnew: false);
if (mySelectionHidden)
{
mySelectionHidden = false;
GoObject currentObject = base.CurrentObject;
if (currentObject != null && currentObject.Document == base.View.Document)
{
if (!base.Selection.Contains(mySelectedObject))
{
base.Selection.Add(mySelectedObject);
}
else
{
currentObject.AddSelectionHandles(base.Selection, mySelectedObject);
}
}
}
mySelectedObject = null;
base.CurrentObject = null;
ResizeHandle = null;
StopTransaction();
}
