/// <summary>
/// Handler for dock widget drag event.
/// </summary>
/// <param name="eventData">Pointer data.</param>
/// <param name="dragCorners">Cached drag corners.</param>
public void ProcessDockWidgetDrag(PointerEventData eventData, Vector3[] dragCorners)
{
DebugEx.VerboseFormat("DockingGroupScript.ProcessDockWidgetDrag(eventData = {0}, dragCorners = {1})", eventData, dragCorners);
float x = Mouse.scaledX - dragCorners[0].x;
DragInfoHolder.dockingArea = mParent;
#region Insert dummy dock widget if absent
if (
DummyDockWidgetScript.instance == null
||
DummyDockWidgetScript.instance.parent != this
)
{
DummyDockWidgetScript.Create(DragInfoHolder.dockWidget).
InsertToDockingGroup(this, 0);
}
#endregion
int dummyIndex = -1;
#region Find dummy dock widget position
float contentWidth = 0f;
int index = 0;
for (int i = 0; i < mChildren.Count; ++i)
{
if (mChildren[i] == DummyDockWidgetScript.instance)
{
dummyIndex = i;
}
else
{
RectTransform tabTransform = mTabsTransform.GetChild(i) as RectTransform;
float tabWidth = tabTransform.sizeDelta.x;
if (
x >= contentWidth
&&
x <= contentWidth + tabWidth
)
{
if (x <= contentWidth + tabWidth / 2)
{
index = i;
}
else
{
index = i + 1;
}
}
contentWidth += tabWidth;
}
}
if (x >= contentWidth)
{
index = mChildren.Count;
}
if (dummyIndex < index)
{
--index;
}
dummyIndex = index;
#endregion
InsertDockWidget(DummyDockWidgetScript.instance, dummyIndex);
int dockWidgetIndex = -1;
#region Place tabs where it should be
contentWidth = 0f;
for (int i = 0; i < mChildren.Count; ++i)
{
if (mChildren[i] == DragInfoHolder.dockWidget)
{
dockWidgetIndex = i;
}
else
{
RectTransform tabTransform = mTabsTransform.GetChild(i) as RectTransform;
float tabWidth = tabTransform.sizeDelta.x;
if (i == dummyIndex)
{
Utils.AlignRectTransformStretchLeft(tabTransform, tabWidth, x - tabWidth * 0.3f, 0f, -1f);
}
else
{
Utils.AlignRectTransformStretchLeft(tabTransform, tabWidth, contentWidth, 0f, -1f);
}
contentWidth += tabWidth;
}
}
#endregion
if (dockWidgetIndex >= 0)
{
RectTransform tabTransform = mTabsTransform.GetChild(dockWidgetIndex) as RectTransform;
RectTransform dummyTabTransform = mTabsTransform.GetChild(dummyIndex) as RectTransform;
tabTransform.offsetMin = dummyTabTransform.offsetMin;
tabTransform.offsetMax = dummyTabTransform.offsetMax;
}
}
