/// <summary>
/// 对指定控件的所有子控件重新计算布局
/// </summary>
/// <param name="control">指定控件</param>
internal static void DoLayoutInternal(IUIControl control)
{
if (control.UIControls.Count <= 0)
{
return;
}
control.BeginUpdate();
try
{
Rectangle rcClient = control.ClientRectangle;
Rectangle rcDock = rcClient;
foreach (UIControl child in control.UIControls)
{
try
{
//停靠
switch (child.Dock)
{
case DockStyle.Left:
child.m_PreferredX = rcDock.Left;
child.m_PreferredY = rcDock.Top;
child.m_PreferredHeight = rcDock.Height;
child.SetBoundsCore();
if (child.Visible)
{
rcDock = RectangleEx.Subtract(rcDock, new Padding(child.m_PreferredWidth, 0, 0, 0));
}
continue;
case DockStyle.Top:
child.m_PreferredX = rcDock.Left;
child.m_PreferredY = rcDock.Top;
child.m_PreferredWidth = rcDock.Width;
child.SetBoundsCore();
if (child.Visible)
{
rcDock = RectangleEx.Subtract(rcDock, new Padding(0, child.m_PreferredHeight, 0, 0));
}
continue;
case DockStyle.Right:
child.m_PreferredX = rcDock.Right - child.m_PreferredWidth;
child.m_PreferredY = rcDock.Top;
child.m_PreferredHeight = rcDock.Height;
child.SetBoundsCore();
if (child.Visible)
{
rcDock = RectangleEx.Subtract(rcDock, new Padding(0, 0, child.m_PreferredWidth, 0));
}
continue;
case DockStyle.Bottom:
child.m_PreferredX = rcDock.Left;
child.m_PreferredY = rcDock.Bottom - child.m_PreferredHeight;
child.m_PreferredWidth = rcDock.Width;
child.SetBoundsCore();
if (child.Visible)
{
rcDock = RectangleEx.Subtract(rcDock, new Padding(0, 0, 0, child.m_PreferredHeight));
}
continue;
case DockStyle.Fill:
child.m_PreferredX = rcDock.Left;
child.m_PreferredY = rcDock.Top;
child.m_PreferredWidth = rcDock.Width;
child.m_PreferredHeight = rcDock.Height;
child.SetBoundsCore();
if (child.Visible)
{
rcDock = control.ClientRectangle; //下一轮重新布局
}
continue;
}
//锚定左右
if (child.m_LeftToParent == null || child.m_RightToParent == null)
{
child.m_LeftToParent = child.m_PreferredX;
child.m_RightToParent = rcClient.Width - child.m_PreferredX - child.m_PreferredWidth;
}
else
{
switch (child.Anchor & (AnchorStyles.Left | AnchorStyles.Right))
{
case AnchorStyles.Left:
child.m_PreferredX = child.m_LeftToParent.Value;
break;
case AnchorStyles.Right:
child.m_PreferredX = rcClient.Width - child.m_RightToParent.Value - child.m_PreferredWidth;
break;
case AnchorStyles.Left | AnchorStyles.Right:
child.m_PreferredX = child.m_LeftToParent.Value;
child.m_PreferredWidth = rcClient.Width - child.m_LeftToParent.Value - child.m_RightToParent.Value;
break;
default:
child.m_PreferredX = child.m_LeftToParent.Value + (rcClient.Width - child.m_LeftToParent.Value - child.m_PreferredWidth - child.m_RightToParent.Value) / 2;
break;
}
}
//锚定上下
if (child.m_TopToParent == null || child.m_BottomToParent == null)
{
child.m_TopToParent = child.m_PreferredY;
child.m_BottomToParent = rcClient.Height - child.m_PreferredY - child.m_PreferredHeight;
}
else
{
switch (child.Anchor & (AnchorStyles.Top | AnchorStyles.Bottom))
{
case AnchorStyles.Top:
child.m_PreferredY = child.m_TopToParent.Value;
break;
case AnchorStyles.Bottom:
child.m_PreferredY = rcClient.Height - child.m_BottomToParent.Value - child.m_PreferredHeight;
break;
case AnchorStyles.Top | AnchorStyles.Bottom:
child.m_PreferredY = child.m_TopToParent.Value;
child.m_PreferredHeight = rcClient.Height - child.m_TopToParent.Value - child.m_BottomToParent.Value;
break;
default:
child.m_PreferredY = child.m_TopToParent.Value + (rcClient.Height - child.m_TopToParent.Value - child.m_PreferredHeight - child.m_BottomToParent.Value) / 2;
break;
}
}
child.SetBoundsCore();
}
finally
{
DoLayoutInternal(child);
}
}
}
finally
{
control.EndUpdate();
}
}
