Added licence/copyright information

[wxWidgets.git] / src / msw / radiobox.cpp

diff --git a/src/msw/radiobox.cpp b/src/msw/radiobox.cpp
index cb435180b18692e4fd5172284778699fe8206b63..50e27bae8dbb4b8bec190469b0eb0d8130e968bb 100644 (file)
--- a/src/msw/radiobox.cpp
+++ b/src/msw/radiobox.cpp
@@ -40,6 +40,11 @@
 
 #include "wx/msw/subwin.h"
 
+// This is switched off because in some situations, the radiobox
+// buttons simply don't appear when deferred sizing is on.
+// Instead, refreshing on WM_MOVE seems to at least cure the droppings.
+#define USE_DEFERRED_SIZING 0
+
 #if wxUSE_TOOLTIPS
     #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
         #include <commctrl.h>
@@ -545,7 +550,17 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
             height = heightOld;
     }
 
-    ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
+    // if our parent had prepared a defer window handle for us, use it (unless
+    // we are a top level window)
+    wxWindowMSW *parent = GetParent();
+
+#if USE_DEFERRED_SIZING
+    HDWP hdwp = parent && !IsTopLevel() ? (HDWP)parent->m_hDWP : NULL;
+#else
+    HDWP hdwp = 0;
+#endif    
+
+    wxMoveWindowDeferred(hdwp, this, GetHwnd(), xx, yy, width, height);
 
     // Now position all the buttons: the current button will be put at
     // wxPoint(x_offset, y_offset) and the new row/column will start at
@@ -642,6 +657,14 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
             x_offset += widthBtn + cx1;
         }
     }
+
+#if USE_DEFERRED_SIZING
+    if (parent)
+    {
+        // hdwp must be updated as it may have been changed
+        parent->m_hDWP = (WXHANDLE)hdwp;
+    }
+#endif
 }
 
 // ----------------------------------------------------------------------------
@@ -667,6 +690,41 @@ WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
     return (WXHRGN)hrgn;
 }
 
+WXLRESULT
+wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    if ( nMsg == WM_PRINTCLIENT )
+    {
+        // we have to process WM_PRINTCLIENT ourselves as otherwise the radio
+        // buttons background would never be drawn unless we have a parent with
+        // non default background
+
+        // so check first if we have one
+        if ( !HandlePrintClient((WXHDC)wParam) )
+        {
+            // no, we don't, erase the background ourselves (don't use our own
+            // colour as with static box, see comments there)
+            wxBrush brush(GetParent()->GetBackgroundColour());
+            wxFillRect(GetHwnd(), (HDC)wParam, GetHbrushOf(brush));
+        }
+
+        return 0;
+    }
+    // FIXME: Without this, the radiobox corrupts other controls as it moves
+    // in a dynamic layout. Refreshing causes flicker, but it's better than
+    // leaving droppings. Note that for some reason, wxStaticBox doesn't need
+    // this (perhaps because it has no real children?)
+    else if (nMsg == WM_MOVE)
+    {
+        WXLRESULT res = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+        wxRect rect = GetRect();
+        GetParent()->Refresh(true, & rect);
+        return res;
+    }
+
+    return wxStaticBox::MSWWindowProc(nMsg, wParam, lParam);
+}
+
 #endif // __WXWINCE__
 
 // ---------------------------------------------------------------------------