/// <summary>
/// compares limits against the dimensions of the VPanel parameter. Changes the limits if the dimensions are closer to this panel's current offset
/// </summary>
/// <param name="panel"></param>
public void SetDirectionalLimits(VPanel panel)
{
var panelLeft = Canvas.GetLeft(panel.border);
var panelTop = Canvas.GetTop(panel.border);
var panelRight = Canvas.GetRight(panel.border);
var panelBottom = Canvas.GetBottom(panel.border);
var thisPanelLeft = Canvas.GetLeft(border);
var thisPanelRight = Canvas.GetRight(border);
var thisPanelTop = Canvas.GetTop(border);
var thisPanelBottom = Canvas.GetBottom(border);
if (CollisionPossible(thisPanelTop, thisPanelBottom, panelTop, panelBottom))
{
if ((panelRight > (leftLimit)) && (panelRight <= Canvas.GetLeft(border)))
{
leftLimit = panelRight;
}
if ((panelLeft < (rightLimit)) && (panelLeft >= Canvas.GetRight(border)))
{
rightLimit = panelLeft;
}
}
if (CollisionPossible(thisPanelLeft, thisPanelRight, panelLeft, panelRight))
{
if ((panelBottom > (topLimit)) && (panelBottom <= Canvas.GetTop(border)))
{
topLimit = panelBottom;
}
if ((panelTop < (bottomLimit)) && (panelTop >= Canvas.GetBottom(border)))
{
bottomLimit = panelTop;
}
}
}
public void BecomeChild(VPanel panel)
{
if (ChildPanels.Contains(panel)) //avoid circular dependencies
{
return;
}
ParentPanel?.LoseChild(this);
ParentPanel = panel;
panel.AcquireChild(this);
AdjustParentPadding();
}
public void LoseChild(VPanel panel)
{
ChildPanels.Remove(this);
}
public void AcquireChild(VPanel panel)
{
ChildPanels.Add(panel);
}