Avoid ICE with MinGW 2.95.3.

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

diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index 362f98ccb71f7b3fad21fcad4d0289b140554f2f..c8681252f84f74f24bdc8a9dc3075d13067cc0be 100644 (file)
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -141,7 +141,7 @@ bool wxChoice::CreateAndInit(wxWindow *parent,
         return false;
 
     // now create the real HWND
-    if ( !MSWCreateControl(wxT("COMBOBOX"), _T(""), pos, size) )
+    if ( !MSWCreateControl(wxT("COMBOBOX"), wxEmptyString, pos, size) )
         return false;
 
 
@@ -335,12 +335,12 @@ int wxChoice::FindString(const wxString& s) const
 #else // !Watcom
    //TODO:  Evidently some MSW versions (all?) don't like empty strings
    //passed to SendMessage, so we have to do it ourselves in that case
-   if ( s.size() == 0 )
+   if ( s.empty() )
    {
      int count = GetCount();
      for ( int i = 0; i < count; i++ )
      {
-       if ( GetString(i).size() == 0 )
+       if ( GetString(i).empty() )
            return i;
      }
 
@@ -350,7 +350,7 @@ int wxChoice::FindString(const wxString& s) const
    {
      int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
                                 (WPARAM)-1, (LPARAM)s.c_str());
- 
+
      return pos == LB_ERR ? wxNOT_FOUND : pos;
    }
 #endif // Watcom/!Watcom
@@ -504,6 +504,23 @@ void wxChoice::DoSetSize(int x, int y,
         const int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, 0, 0);
         height += hItem*(nItems + 1);
     }
+    else
+    {
+        // We cannot pass wxDefaultCoord as height to wxControl. wxControl uses
+        // wxGetWindowRect() to determine the current height of the combobox,
+        // and then again sets the combobox's height to that value. Unfortunately,
+        // wxGetWindowRect doesn't include the dropdown list's height (at least
+        // on Win2K), so this would result in a combobox with dropdown height of
+        // 1 pixel. We have to determine the default height ourselves and call
+        // wxControl with that value instead.
+        int w, h;
+        RECT r;
+        DoGetSize(&w, &h);
+        if (::SendMessage(GetHwnd(), CB_GETDROPPEDCONTROLRECT, 0, (LPARAM) &r) != 0)
+        {
+            height = h + r.bottom - r.top;
+        }
+    }
 
     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 
@@ -582,7 +599,7 @@ WXLRESULT wxChoice::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                 WXHWND hwnd;
                 UnpackCtlColor(wParam, lParam, &hdc, &hwnd);
 
-                WXHBRUSH hbr = MSWControlColor((WXHDC)hdc);
+                WXHBRUSH hbr = MSWControlColor((WXHDC)hdc, hwnd);
                 if ( hbr )
                     return (WXLRESULT)hbr;
                 //else: fall through to default window proc
@@ -617,12 +634,12 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
     return true;
 }
 
-WXHBRUSH wxChoice::MSWControlColor(WXHDC hDC)
+WXHBRUSH wxChoice::MSWControlColor(WXHDC hDC, WXHWND hWnd)
 {
     if ( !IsEnabled() )
         return MSWControlColorDisabled(hDC);
 
-    return wxChoiceBase::MSWControlColorSolid(hDC);
+    return wxChoiceBase::MSWControlColor(hDC, hWnd);
 }
 
 #endif // wxUSE_CHOICE && !(__SMARTPHONE__ && __WXWINCE__)