private Rectangle GetPaneSplitterDragRectangle()
{
DockPaneSplitter splitter = DragControl as DockPaneSplitter;
DockPane pane = splitter.DockPane;
NestedDockingStatus status = pane.NestedDockingStatus;
Rectangle rectLimit = status.LogicalBounds;
rectLimit.Location = splitter.Parent.PointToScreen(rectLimit.Location);
bool bVerticalSplitter;
if (status.DisplayingAlignment == DockAlignment.Left || status.DisplayingAlignment == DockAlignment.Right)
{
rectLimit.X += MeasurePane.MinSize;
rectLimit.Width -= 2 * MeasurePane.MinSize;
bVerticalSplitter = true;
}
else
{
rectLimit.Y += MeasurePane.MinSize;
rectLimit.Height -= 2 * MeasurePane.MinSize;
bVerticalSplitter = false;
}
return(GetSplitterDragRectangle(rectLimit, bVerticalSplitter));
}
public void BeginDragPaneSplitter(DockPaneSplitter splitter)
{
if (!InitDrag(splitter, DragSource.PaneSplitter))
{
return;
}
PaneSplitter_BeginDrag(splitter.Location);
}
private void PaneSplitter_OnEndDrag(bool abort)
{
if (abort)
{
return;
}
Point pt = m_splitterLocation;
Rectangle rect = GetPaneSplitterDragRectangle();
DockPaneSplitter splitter = DragControl as DockPaneSplitter;
DockPane pane = splitter.DockPane;
NestedDockingStatus status = pane.NestedDockingStatus;
double proportion = status.Proportion;
if (status.LogicalBounds.Width <= 0 || status.LogicalBounds.Height <= 0)
{
return;
}
else if (status.DisplayingAlignment == DockAlignment.Left)
{
proportion += ((double)rect.X - (double)pt.X) / (double)status.LogicalBounds.Width;
}
else if (status.DisplayingAlignment == DockAlignment.Right)
{
proportion -= ((double)rect.X - (double)pt.X) / (double)status.LogicalBounds.Width;
}
else if (status.DisplayingAlignment == DockAlignment.Top)
{
proportion += ((double)rect.Y - (double)pt.Y) / (double)status.LogicalBounds.Height;
}
else
{
proportion -= ((double)rect.Y - (double)pt.Y) / (double)status.LogicalBounds.Height;
}
pane.SetNestedDockingProportion(proportion);
}