public override void Dispose()
{
_target = null;
_source = null;
_activeRect = null;
base.Dispose();
}
public static void RemoveTarget(IDragTarget target)
{
if (instance.target == target)
{
instance.target = null;
}
}
public static void SetTarget(IDragTarget target)
{
if (instance.target != null)
{
instance.target.OnDragExit();
}
instance.target = target;
}
internal BaseDropPanel(IDragTarget target, DragItem source)
{
_target = target;
_source = source;
//绘制停靠的区域
_activeRect = new ActiveRectDropVisual(DragManager.NONE);
AddChild(_activeRect);
}
internal RootDropPanel(IDragTarget target, DragItem source) : base(target, source)
{
//绘制左边的拖放区域
AddChild(new UnitDropVisual(DragManager.LEFT));
//绘制顶部的拖放区域
AddChild(new UnitDropVisual(DragManager.TOP));
//绘制右边的拖放区域
AddChild(new UnitDropVisual(DragManager.RIGHT));
//绘制底部的拖放区域
AddChild(new UnitDropVisual(DragManager.BOTTOM));
}
void StartDrag(Vector2 elementPos)
{
uiDragTarget = uiManager.UnderPointUi(elementPos).FindComponentInParents <IDragTarget>();
if (uiDragTarget != null)
{
DragingGameObject = uiDragTarget.DragGameObject;
}
if (DragingGameObject != null)
{
DragingImage.texture = DragingGameObject.GetComponent <SpriteRenderer>().sprite.texture;
//DragingImage.color = new Color(255f, 255f, 255f, ImageAlpha);
DragingImage.rectTransform.sizeDelta = DragingGameObject.GetComponent <SpriteRenderer>()
.sprite.texture.FitSize(new Vector2(DragingImageSize.x, DragingImageSize.y));
DragingImage.gameObject.SetActive(true);
DragingImage.gameObject.transform.SetAsLastSibling();
}
}
internal DropPanel(IDragTarget target, DragItem source) : base(target, source)
{
//绘制拖放区域的玻璃外观
AddChild(new GlassDropVisual(DragManager.NONE));
//绘制中心的拖放区域
AddChild(new UnitDropVisual(DragManager.CENTER));
//绘制左边的拖放区域
AddChild(new UnitDropVisual(DragManager.LEFT));
//绘制顶部的拖放区域
AddChild(new UnitDropVisual(DragManager.TOP));
//绘制右边的拖放区域
AddChild(new UnitDropVisual(DragManager.RIGHT));
//绘制底部的拖放区域
AddChild(new UnitDropVisual(DragManager.BOTTOM));
//绘制左分割的拖放区域
AddChild(new UnitDropVisual(DragManager.LEFT | DragManager.SPLIT));
//绘制上分割的拖放区域
AddChild(new UnitDropVisual(DragManager.TOP | DragManager.SPLIT));
//绘制右分割的拖放区域
AddChild(new UnitDropVisual(DragManager.RIGHT | DragManager.SPLIT));
//绘制下分割的拖放区域
AddChild(new UnitDropVisual(DragManager.BOTTOM | DragManager.SPLIT));
}
public DropWindow(IDragTarget host)
{
AllowsTransparency = true;
_host = host;
if (host.Mode == DragMode.RootPanel)
{
_dropPanel = new RootDropPanel(host, host.DockManager.DragManager.DragItem);
}
else
{
_dropPanel = new DropPanel(host, host.DockManager.DragManager.DragItem);
}
_dropPanel.SizeChanged += OnSizeChanged;
Child = _dropPanel;
if (host.Mode != DragMode.RootPanel)
{
if (host.Mode == DragMode.Document &&
host.DockManager.DragManager.DragItem.DragMode == DragMode.Anchor)
{
MinWidth = Constants.DropUnitLength * 5;
MinHeight = Constants.DropUnitLength * 5;
}
else
{
MinWidth = Constants.DropUnitLength * 3;
MinHeight = Constants.DropUnitLength * 3;
}
}
else
{
MinWidth = 0;
MinHeight = 0;
}
}
public void Dispose()
{
_dropPanel.Dispose();
_dropPanel = null;
_host = null;
}
