/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseMove"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"></see> that contains the event data.</param>
protected override void OnMouseMove(MouseEventArgs e)
{
if (DesignView.Context != null)
{
Size dragBoxSize = SystemInformation.DragSize;
CurrentMousePoint = new Point(e.X, e.Y);
int dx = CurrentMousePoint.X - FirstMousePoint.X;
int dy = CurrentMousePoint.Y - FirstMousePoint.Y;
if (!m_dragOverThreshold)
{
if (Math.Abs(dx) > dragBoxSize.Width || Math.Abs(dy) > dragBoxSize.Height)
{
m_dragOverThreshold = true;
if (m_mouseDownAction == MouseDownAction.Manipulating)
{
DesignView.Manipulator.OnBeginDrag();
}
}
}
if (m_mouseDownAction == MouseDownAction.Picking)
{
Invalidate();
}
else if (m_mouseDownAction == MouseDownAction.ControllingCamera)
{
CameraController.MouseMove(this, e);
}
else if (m_mouseDownAction == MouseDownAction.Manipulating)
{
if (m_dragOverThreshold)
{
DesignView.Manipulator.OnDragging(this, e.Location);
DesignView.Tick();
if (m_propEditor == null)
{
m_propEditor = Globals.MEFContainer.GetExportedValue <PropertyEditor>();
}
m_propEditor.PropertyGrid.RefreshProperties();
}
}
else if (DesignView.Manipulator != null)
{
bool picked = DesignView.Manipulator.Pick(this, e.Location);
this.Cursor = picked ? Cursors.SizeAll : Cursors.Default;
DesignView.InvalidateViews();
}
else if (this.Cursor != Cursors.Default)
{
this.Cursor = Cursors.Default;
}
}
if (m_dragOverThreshold)
{
m_hitIndex = -1;
}
base.OnMouseMove(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseDown"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"></see> that contains the event data.</param>
protected override void OnMouseDown(MouseEventArgs e)
{
// reject additional mouse clicks until current is done.
if (m_mouseDownAction != MouseDownAction.None)
{
return;
}
Focus();
FirstMousePoint = CurrentMousePoint = new Point(e.X, e.Y);
m_dragOverThreshold = false;
if (DesignView.Context != null)
{
bool handled = CameraController.MouseDown(this, e);
if (handled)
{
m_mouseDownAction = MouseDownAction.ControllingCamera;
}
else if (e.Button == MouseButtons.Left)
{// either regular pick or manipulator pick.
if (DesignView.Manipulator != null && DesignView.Manipulator.Pick(this, e.Location))
{
m_mouseDownAction = MouseDownAction.Manipulating;
}
else
{
m_mouseDownAction = MouseDownAction.Picking;
}
}
}
DesignView.InvalidateViews();
base.OnMouseDown(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseUp"></see> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs"></see> that contains the event data.</param>
protected override void OnMouseUp(MouseEventArgs e)
{
if (m_mouseDownAction == MouseDownAction.Picking)
{
HandlePick(e);
}
else if (m_mouseDownAction == MouseDownAction.ControllingCamera)
{
CameraController.MouseUp(this, e);
}
else if (m_mouseDownAction == MouseDownAction.Manipulating)
{
DesignView.Manipulator.OnEndDrag(this, e.Location);
}
else if (e.Button == MouseButtons.Right)
{
IEnumerable <IContextMenuCommandProvider>
contextMenuCommandProviders = Globals.MEFContainer.GetExportedValues <IContextMenuCommandProvider>();
Point clientPoint = new Point(e.X, e.Y);
Point screenPoint = PointToScreen(clientPoint);
object target = this;
IList <object> pickList = Pick(e);
if (pickList.Count > 0)
{
Path <object> pickedObj = (Path <object>)pickList[0];
target = pickedObj.Last;
}
IEnumerable <object> commands =
contextMenuCommandProviders.GetCommands(DesignView.Context, target);
ICommandService commandService = Globals.MEFContainer.GetExportedValue <ICommandService>();
commandService.RunContextMenu(commands, screenPoint);
}
m_mouseDownAction = MouseDownAction.None;
DesignView.InvalidateViews();
base.OnMouseUp(e);
}