protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case (int)Win32.Msgs.WM_NCLBUTTONDOWN:
{
if (IsDisposed)
{
return;
}
uint result = Win32Helper.IsRunningOnMono ? 0 : NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
if (result == 2 && DockPanel.AllowEndUserDocking && this.AllowEndUserDocking) // HITTEST_CAPTION
{
Activate();
m_dockPanel.BeginDrag(this);
}
else
{
base.WndProc(ref m);
}
return;
}
case (int)Win32.Msgs.WM_NCRBUTTONDOWN:
{
uint result = Win32Helper.IsRunningOnMono ? 0 : NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
if (result == 2) // HITTEST_CAPTION
{
DockPane theOnlyPane = (VisibleNestedPanes.Count == 1) ? VisibleNestedPanes[0] : null;
if (theOnlyPane != null && theOnlyPane.ActiveContent != null)
{
theOnlyPane.ShowTabPageContextMenu(this, PointToClient(Control.MousePosition));
return;
}
}
base.WndProc(ref m);
return;
}
case (int)Win32.Msgs.WM_CLOSE:
if (NestedPanes.Count == 0)
{
base.WndProc(ref m);
return;
}
for (int i = NestedPanes.Count - 1; i >= 0; i--)
{
DockContentCollection contents = NestedPanes[i].Contents;
for (int j = contents.Count - 1; j >= 0; j--)
{
IDockContent content = contents[j];
if (content.DockHandler.DockState != DockState.Float)
{
continue;
}
if (!content.DockHandler.CloseButton)
{
continue;
}
if (content.DockHandler.HideOnClose)
{
content.DockHandler.Hide();
}
else
{
content.DockHandler.Close();
}
}
}
return;
case (int)Win32.Msgs.WM_NCLBUTTONDBLCLK:
{
uint result = !DoubleClickTitleBarToDock || Win32Helper.IsRunningOnMono
? 0
: NativeMethods.SendMessage(this.Handle, (int)Win32.Msgs.WM_NCHITTEST, 0, (uint)m.LParam);
if (result != 2) // HITTEST_CAPTION
{
base.WndProc(ref m);
return;
}
DockPanel.SuspendLayout(true);
// Restore to panel
foreach (DockPane pane in NestedPanes)
{
if (pane.DockState != DockState.Float)
{
continue;
}
pane.RestoreToPanel();
}
DockPanel.ResumeLayout(true, true);
return;
}
case WM_CHECKDISPOSE:
if (NestedPanes.Count == 0)
{
Dispose();
}
return;
}
base.WndProc(ref m);
}
public void DockTo(DockPane pane, DockStyle dockStyle, int contentIndex)
{
if (dockStyle == DockStyle.Fill)
{
bool samePane = (Pane == pane);
if (!samePane)
{
Pane = pane;
}
int visiblePanes = 0;
int convertedIndex = 0;
while (visiblePanes <= contentIndex && convertedIndex < Pane.Contents.Count)
{
DockContent window = Pane.Contents[convertedIndex] as DockContent;
if (window != null && !window.IsHidden)
{
++visiblePanes;
}
++convertedIndex;
}
contentIndex = Math.Min(Math.Max(0, convertedIndex - 1), Pane.Contents.Count - 1);
if (contentIndex == -1 || !samePane)
{
pane.SetContentIndex(Content, contentIndex);
}
else
{
DockContentCollection contents = pane.Contents;
int oldIndex = contents.IndexOf(Content);
int newIndex = contentIndex;
if (oldIndex < newIndex)
{
newIndex += 1;
if (newIndex > contents.Count - 1)
{
newIndex = -1;
}
}
pane.SetContentIndex(Content, newIndex);
}
}
else
{
DockPane paneFrom = DockPanel.DockPaneFactory.CreateDockPane(Content, pane.DockState, true);
INestedPanesContainer container = pane.NestedPanesContainer;
if (dockStyle == DockStyle.Left)
{
paneFrom.DockTo(container, pane, DockAlignment.Left, 0.5);
}
else if (dockStyle == DockStyle.Right)
{
paneFrom.DockTo(container, pane, DockAlignment.Right, 0.5);
}
else if (dockStyle == DockStyle.Top)
{
paneFrom.DockTo(container, pane, DockAlignment.Top, 0.5);
}
else if (dockStyle == DockStyle.Bottom)
{
paneFrom.DockTo(container, pane, DockAlignment.Bottom, 0.5);
}
paneFrom.DockState = pane.DockState;
}
}