/// <include file='doc\ScrollableControlDesigner.uex' path='docs/doc[@for="ScrollableControlDesigner.WndProc"]/*' />
/// <devdoc>
/// We override our base class's WndProc to monitor certain messages.
/// </devdoc>
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
switch (m.Msg)
{
case NativeMethods.WM_HSCROLL:
case NativeMethods.WM_VSCROLL:
// When we scroll, we reposition a control without causing a
// property change event. Therefore, we must tell the
// selection UI service to sync itself.
//
if (selectionUISvc == null)
{
selectionUISvc = (ISelectionUIService)GetService(typeof(ISelectionUIService));
}
if (selectionUISvc != null)
{
selectionUISvc.SyncSelection();
}
// Now we must paint our adornments, since the scroll does not
// trigger a paint event
//
Control.Invalidate();
Control.Update();
break;
}
}
void SyncDesignerUI()
{
Size selectionSize = new Size(0, 0);
ISelectionUIService uis = (ISelectionUIService)designerSite.GetService(typeof(ISelectionUIService));
if (uis != null)
{
selectionSize = uis.GetAdornmentDimensions(AdornmentType.Maximum);
}
designerRegion.AutoScrollMargin = selectionSize;
designer.Location = new Point(selectionSize.Width, selectionSize.Height);
if (uis != null)
{
uis.SyncSelection();
}
}
/// <include file='doc\FormDocumentDesigner.uex' path='docs/doc[@for="FormDocumentDesigner.OnLoadComplete"]/*' />
/// <devdoc>
/// Called when our code loads. Here we connect us as the selection
/// UI handler for ourselves. This is a special case because for
/// the top level document, we are our own selection UI handler.
/// </devdoc>
private void OnLoadComplete(object source, EventArgs evevent)
{
ApplyAutoScaling(autoScaleBaseSize, (Form)Control);
ISelectionUIService svc = (ISelectionUIService)GetService(typeof(ISelectionUIService));
if (svc != null)
{
svc.SyncSelection();
}
// if there is a menu and we need to update our height because of it,
// do it now.
//
if (heightDelta != 0)
{
((Form)Control).Height += heightDelta;
heightDelta = 0;
}
}
/// <include file='doc\DesignerFrame.uex' path='docs/doc[@for="DesignerFrame.OverlayControl.OnCreateControl"]/*' />
/// <devdoc>
/// At handle creation time we request the designer's handle and
/// parent it.
/// </devdoc>
protected override void OnCreateControl()
{
base.OnCreateControl();
// Loop through all of the overlays, create them, and hook them up
//
if (overlayList != null)
{
foreach (Control c in overlayList)
{
ParentOverlay(c);
}
}
// We've reparented everything, which means that our selection UI is probably
// out of sync. Ask it to sync.
//
ISelectionUIService selUISvc = (ISelectionUIService)provider.GetService(typeof(ISelectionUIService));
if (selUISvc != null)
{
selUISvc.SyncSelection();
}
}
