Don't do the wx cleanup if wxPython didn't do the initialization.

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

diff --git a/src/msw/button.cpp b/src/msw/button.cpp
index 24d5340b6e8a5a2fc769ae12ddc21bb86c06ed91..2cafeca17ec76c63158349cf24ff0685423177c4 100644 (file)
--- a/src/msw/button.cpp
+++ b/src/msw/button.cpp
@@ -68,66 +68,64 @@ bool wxButton::Create(wxWindow *parent,
                       const wxValidator& validator,
                       const wxString& name)
 {
-    if ( !CreateBase(parent, id, pos, size, style, validator, name) )
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
         return FALSE;
 
-    parent->AddChild((wxButton *)this);
+    WXDWORD exstyle;
+    WXDWORD msStyle = MSWGetStyle(style, &exstyle);
 
-    m_backgroundColour = parent->GetBackgroundColour();
-    m_foregroundColour = parent->GetForegroundColour();
+#ifdef __WIN32__
+    // if the label contains several lines we must explicitly tell the button
+    // about it or it wouldn't draw it correctly ("\n"s would just appear as
+    // black boxes)
+    //
+    // NB: we do it here and not in MSWGetStyle() because we need the label
+    //     value and m_label is not set yet when MSWGetStyle() is called;
+    //     besides changing BS_MULTILINE during run-time is pointless anyhow
+    if ( label.find(_T('\n')) != wxString::npos )
+    {
+        msStyle |= BS_MULTILINE;
+    }
+#endif // __WIN32__
+
+    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+}
+
+wxButton::~wxButton()
+{
+}
 
-    long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD /* | WS_CLIPSIBLINGS */ ;
+// ----------------------------------------------------------------------------
+// flags
+// ----------------------------------------------------------------------------
+
+WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    // buttons never have an external border, they draw their own one
+    WXDWORD msStyle = wxControl::MSWGetStyle
+                      (
+                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+                      );
 
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        msStyle |= WS_CLIPSIBLINGS;
+    // we must use WS_CLIPSIBLINGS with the buttons or they would draw over
+    // each other in any resizeable dialog which has more than one button in
+    // the bottom
+    msStyle |= WS_CLIPSIBLINGS;
 
 #ifdef __WIN32__
-    if(m_windowStyle & wxBU_LEFT)
+    // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
+    // and wxBU_RIGHT to get BS_CENTER!
+    if ( style & wxBU_LEFT )
         msStyle |= BS_LEFT;
-    if(m_windowStyle & wxBU_RIGHT)
+    if ( style & wxBU_RIGHT )
         msStyle |= BS_RIGHT;
-    if(m_windowStyle & wxBU_TOP)
+    if ( style & wxBU_TOP )
         msStyle |= BS_TOP;
-    if(m_windowStyle & wxBU_BOTTOM)
+    if ( style & wxBU_BOTTOM )
         msStyle |= BS_BOTTOM;
-#endif
-
-    m_hWnd = (WXHWND)CreateWindowEx
-                     (
-                      MakeExtendedStyle(m_windowStyle),
-                      wxT("BUTTON"),
-                      label,
-                      msStyle,
-                      0, 0, 0, 0,
-                      GetWinHwnd(parent),
-                      (HMENU)m_windowId,
-                      wxGetInstance(),
-                      NULL
-                     );
-
-    if (m_hWnd == 0)
-    {
-        wxString msg;
-#ifdef __WIN16__
-        msg.Printf(wxT("CreateWindowEx failed"));
-#else
-        msg.Printf(wxT("CreateWindowEx failed with error number %ld"), (long) GetLastError());
-#endif
-        wxFAIL_MSG(msg);
-    }
-
-    // Subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
-
-    SetFont(parent->GetFont());
-
-    SetSize(pos.x, pos.y, size.x, size.y);
-
-    return TRUE;
-}
+#endif // __WIN32__
 
-wxButton::~wxButton()
-{
+    return msStyle;
 }
 
 // ----------------------------------------------------------------------------
@@ -164,7 +162,7 @@ wxSize wxButtonBase::GetDefaultSize()
     if ( s_sizeBtn.x == 0 )
     {
         wxScreenDC dc;
-        dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+        dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 
         // the size of a standard button in the dialog units is 50x14,
         // translate this to pixels