preserve type when loaded image is rescaled, #11543

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

diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index 44f08b6985b4350e3edb6bb910d3d3ad2f16863d..5abb57a2c55e5739a35e4b0c3c150414a17585e7 100644 (file)
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -117,8 +117,8 @@ bool wxChoice::Create(wxWindow *parent,
     wxASSERT_MSG( !(style & wxCB_DROPDOWN) &&
                   !(style & wxCB_READONLY) &&
                   !(style & wxCB_SIMPLE),
-                  _T("this style flag is ignored by wxChoice, you ")
-                  _T("probably want to use a wxComboBox") );
+                  wxT("this style flag is ignored by wxChoice, you ")
+                  wxT("probably want to use a wxComboBox") );
 
     return CreateAndInit(parent, id, pos, size, n, choices, style,
                          validator, name);
@@ -552,13 +552,20 @@ void wxChoice::DoSetSize(int x, int y,
     // don't make the drop down list too tall, arbitrarily limit it to 30
     // items max and also don't make it too small if it's currently empty
     size_t nItems = GetCount();
-    if ( !nItems )
-        nItems = 9;
-    else if ( nItems > 30 )
-        nItems = 30;
+    if (!HasFlag(wxCB_SIMPLE))
+    {
+        if ( !nItems )
+            nItems = 9;
+        else if ( nItems > 30 )
+            nItems = 30;
+    }
 
     const int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, 0, 0);
-    const int heightWithItems = height + hItem*nItems;
+    int heightWithItems = 0;
+    if (!HasFlag(wxCB_SIMPLE))
+        heightWithItems = height + hItem*nItems;
+    else
+        heightWithItems = SetHeightSimpleComboBox(nItems);
 
 
     // do resize the native control
@@ -592,6 +599,7 @@ wxSize wxChoice::DoGetBestSize() const
 {
     // find the widest string
     int wChoice = 0;
+    int hChoice;
     const unsigned int nItems = GetCount();
     for ( unsigned int i = 0; i < nItems; i++ )
     {
@@ -608,12 +616,26 @@ wxSize wxChoice::DoGetBestSize() const
 
     // the combobox should be slightly larger than the widest string
     wChoice += 5*GetCharWidth();
+    if( HasFlag( wxCB_SIMPLE ) )
+    {
+        hChoice = SetHeightSimpleComboBox( nItems );
+    }
+    else
+        hChoice = EDIT_HEIGHT_FROM_CHAR_HEIGHT(GetCharHeight());
 
-    wxSize best(wChoice, EDIT_HEIGHT_FROM_CHAR_HEIGHT(GetCharHeight()));
+    wxSize best(wChoice, hChoice);
     CacheBestSize(best);
     return best;
 }
 
+int wxChoice::SetHeightSimpleComboBox(int nItems) const
+{
+    int cx, cy;
+    wxGetCharSize( GetHWND(), &cx, &cy, GetFont() );
+    int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, (WPARAM)-1, 0);
+    return EDIT_HEIGHT_FROM_CHAR_HEIGHT( cy ) * wxMin( wxMax( nItems, 3 ), 6 ) + hItem - 1;
+}
+
 // ----------------------------------------------------------------------------
 // MSW message handlers
 // ----------------------------------------------------------------------------