public DockPaneLayoutEngine(DockPaneBase target)
: base(target)
{
_ownNodes.Add(this);
Align = DockDirection.None;
SplitterVisible = true;
}
/// <summary>DockingHelperを表示し、マウスのイテレータへの当たり判定を行います。</summary>
/// <param name="bay">DockingHelperを重ねるDockBayBase</param>
/// <param name="pane">PaneHelperを重ねるDockPaneBase</param>
/// <returns>マウスオーバーされてるイテレータ</returns>
public DragDropEffects GetDragDropEffect(DockBayBase bay, DockPaneBase pane)
{
//引数bayへDockingHelperを重ねる
var rect = new Rect(bay.PointToScreen(new Point(0, 0)), bay.RenderSize);
Left = rect.X;
Top = rect.Y;
Width = rect.Width;
Height = rect.Height;
Visibility = Visibility.Visible;
if (pane != null)
{
//引数paneの中央へ重なるようにPaneHelperを移動させる
var p = pane.TranslatePoint(new Point(pane.ContentLeft, pane.ContentTop), this);
PaneHelper.Margin = new Thickness(
((pane.ContentWidth - PaneHelper.RenderSize.Width) / 2) + p.X,
((pane.ContentHeight - PaneHelper.RenderSize.Height) / 2) + p.Y,
0, 0);
}
//マウスポインタ座標からDragDropEffectsを求める
var pt = Mouse.GetPosition(this);
var res = (new[]
{
new {Ind = (FrameworkElement)InTopIndicator, Eff = DragDropEffects.Top},
new {Ind = (FrameworkElement)InBottomIndicator, Eff = DragDropEffects.Bottom},
new {Ind = (FrameworkElement)InLeftIndicator, Eff = DragDropEffects.Left},
new {Ind = (FrameworkElement)InRightIndicator, Eff = DragDropEffects.Right},
new {Ind = (FrameworkElement)OutTopIndicator, Eff = DragDropEffects.OuterTop},
new {Ind = (FrameworkElement)OutBottomIndicator, Eff = DragDropEffects.OuterBottom},
new {Ind = (FrameworkElement)OutLeftIndicator, Eff = DragDropEffects.OuterLeft},
new {Ind = (FrameworkElement)OutRightIndicator, Eff = DragDropEffects.OuterRight},
new {Ind = (FrameworkElement)InCenterIndicator, Eff = DragDropEffects.Fill},
new {Ind = (FrameworkElement)bay, Eff = DragDropEffects.Enter},
})
.Where(pair =>
pair.Ind.Visibility == System.Windows.Visibility.Visible &&
new Rect(pair.Ind.TranslatePoint(new Point(), this), pair.Ind.RenderSize).Contains(pt))
.Select(pair => pair.Eff)
.Concat(new[] { DragDropEffects.None })
.First();
return res;
}
void wnd_WindowDraged(object sender, EventArgs e)
{
//Helperを表示するBayがあるかどうかを調べる
var mvForm = (DockFloatingWindow)sender;
var hoverBay = _baysOrder.Concat(new[] { this }).Where(bay =>
{
var mp = Mouse.GetPosition(bay);
return bay != mvForm.DockBay &&
(mp.X >= 0 && mp.X < bay.RenderSize.Width && mp.Y >= 0 && mp.Y < bay.RenderSize.Height);
}).FirstOrDefault();
_dragingBay = mvForm.DockBay;
_hoverBay = hoverBay;
//Helperを表示する必要がある場合は表示とマウスが乗ってる座標下の
//Paneも探す。無い場合は非表示にし、各一時保存用変数をクリアする
if (hoverBay != null)
{
var mPos = Mouse.GetPosition(hoverBay);
var childAtPoint = hoverBay.GetChildAtPoint(mPos);
_dragEffect = DockingHelper.GetDragDropEffect(hoverBay, childAtPoint);
_hoverPane = childAtPoint;
DockingHelper.ActiveIndicator = _dragEffect;
}
else
{
DockingHelper.Visibility = System.Windows.Visibility.Hidden;
_dragEffect = DragDropEffects.None;
_hoverPane = null;
DockingHelper.ActiveIndicator = _dragEffect;
}
OnFloatingWindowMoved(new FloatFormEventArgs((DockFloatingWindow)sender));
}
void wnd_EndWindowDrag(object sender, EventArgs e)
{
if (_dragingBay == null)
return;
var len = _dragingBay.Items.Count == 1 && ((DockPaneBase)_dragingBay.Items[0]).Items.Count == 0
? ((DockPaneBase)_dragingBay.Items[0]).Length : new DockLength();
switch (_dragEffect)
{
case DragDropEffects.Top:
_hoverPane.AddPanesOf(_dragingBay, DockDirection.Top, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.Bottom:
_hoverPane.AddPanesOf(_dragingBay, DockDirection.Bottom, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.Left:
_hoverPane.AddPanesOf(_dragingBay, DockDirection.Left, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.Right:
_hoverPane.AddPanesOf(_dragingBay, DockDirection.Right, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.Fill:
break;
case DragDropEffects.OuterTop:
_hoverBay.AddPanesOf(_dragingBay, DockDirection.Top, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.OuterBottom:
_hoverBay.AddPanesOf(_dragingBay, DockDirection.Bottom, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.OuterLeft:
_hoverBay.AddPanesOf(_dragingBay, DockDirection.Left, len);
Window.GetWindow(this).Activate();
break;
case DragDropEffects.OuterRight:
_hoverBay.AddPanesOf(_dragingBay, DockDirection.Right, len);
Window.GetWindow(this).Activate();
break;
default:
break;
}
DockingHelper.Visibility = System.Windows.Visibility.Hidden;
_hoverPane = null;
_hoverBay = null;
_dragingBay = null;
_dragEffect = DragDropEffects.None;
OnFloatingWindowEndMove(new FloatFormEventArgs((DockFloatingWindow)sender));
}
