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

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 71e501dbcc4070b8b68357c12aa15e9bc0ee938f..f00c1297c9bdef0ab558fb24ac8a3ac99262d36f 100644 (file)
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -30,36 +30,36 @@
 #include "wx/clipbrd.h"
 #include "wx/msw/private.h"
 
-#if !USE_SHARED_LIBRARY
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
-#endif
 
 bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {
-  if (param == CBN_SELCHANGE)
-  {
-    if (GetSelection() > -1)
+    switch ( param )
     {
-        wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId);
-        event.SetInt(GetSelection());
-        event.SetEventObject(this);
-        event.SetString(GetStringSelection());
-        ProcessCommand(event);
+        case CBN_SELCHANGE:
+            if (GetSelection() > -1)
+            {
+                wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
+                event.SetInt(GetSelection());
+                event.SetEventObject(this);
+                event.SetString(GetStringSelection());
+                ProcessCommand(event);
+            }
+            break;
+
+        case CBN_EDITCHANGE:
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+                event.SetString(GetValue());
+                event.SetEventObject(this);
+                ProcessCommand(event);
+            }
+            break;
     }
 
-    return TRUE;
-  }
-  else if (param == CBN_EDITCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
-    event.SetString(GetValue());
-    event.SetEventObject(this);
-    ProcessCommand(event);
-
-    return TRUE;
-  }
-  else
-      return FALSE;
+    // there is no return value for the CBN_ notifications, so always return
+    // FALSE from here to pass the message to DefWindowProc()
+    return FALSE;
 }
 
 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
@@ -72,7 +72,9 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                         const wxString& name)
 {
   SetName(name);
+#if wxUSE_VALIDATORS
   SetValidator(validator);
+#endif // wxUSE_VALIDATORS
   if (parent) parent->AddChild(this);
 //  SetBackgroundColour(parent->GetBackgroundColour()) ;
 
@@ -94,8 +96,8 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
   int width = size.x;
   int height = size.y;
 
-  long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
-      CBS_NOINTEGRALHEIGHT;
+  long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE |
+                 WS_VSCROLL | WS_HSCROLL | CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT;
 
   if (m_windowStyle & wxCB_READONLY)
     msStyle |= CBS_DROPDOWNLIST;
@@ -325,11 +327,36 @@ void wxComboBox::SetSelection(long from, long to)
 #endif
 }
 
-void wxComboBox::DoSetSize(int x, int y,
-                           int width, int height,
-                           int sizeFlags)
+void wxComboBox::DoMoveWindow(int x, int y, int width, int height)
 {
-    wxControl::DoSetSize(x, y, width, height, sizeFlags);
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+
+    // what should the height of the drop down list be? we choose 10 items by
+    // default and also 10 items max (if we always use n, the list will never
+    // have vertical scrollbar)
+    int n = GetCount();
+    if ( !n )
+        n = 10;
+    else if ( n > 10 )
+        n = 10;
+
+    height = n * EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+
+    wxControl::DoMoveWindow(x, y, width, height);
+}
+
+wxSize wxComboBox::DoGetBestSize() const
+{
+    // the choice calculates the horz size correctly, but not the vertical
+    // component: correct it
+    wxSize size = wxChoice::DoGetBestSize();
+
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+    size.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+
+    return size;
 }
 
 #endif