Modified some classes to succesfully comunicate with BWindow/BView. the default decorator has been impoved. From now borders are build ARROUND the window area.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4432 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/DesktopClasses.cpp

@@ -33,7 +33,11 @@
 #include "TokenHandler.h"
 #include "ServerWindow.h"
 #include "WinBorder.h"
+#include "RootLayer.h"
 #include "Desktop.h"
+#include "DisplayDriver.h"
+#include "Decorator.h"
+
 
 //#define DEBUG_WORKSPACE
 //#define DEBUG_SCREEN
@@ -443,6 +447,26 @@ printf("Screen::RemoveWindow(%s)\n",win?win->GetTitle():"NULL");
 	
 	win->_winborder->RemoveSelf();
 }
+/*!
+	\brief Returns the WinBorder taht contains the point
+	\param	The point
+	\return The WinBorder that contains the point
+*/
+WinBorder* Screen::GetWindowAt( BPoint pt ){
+	WinBorder	*wb;
+	Layer 	*rl = GetRootLayer();
+	Layer	*child;
+	for(child = rl->_bottomchild; child!=NULL; child = child->_uppersibling)
+	{
+		if(child->_hidecount>0)
+			continue;
+		wb		= dynamic_cast<WinBorder*>( child );
+		if (wb)
+			if(wb->GetDecorator()->GetFootprint()->Contains(pt))
+				return wb;
+	}
+	return NULL;
+}
 
 /*!
 	\brief Returns the active window in the current workspace