Unused warning fix.

[wxWidgets.git] / src / os2 / radiobut.cpp

diff --git a/src/os2/radiobut.cpp b/src/os2/radiobut.cpp
index f06181dd45bea2884a5301a65ab3f6ee76e3febc..8d1b543ad8f108ad4aec8d4cc4cedc22cfc55434 100644 (file)
--- a/src/os2/radiobut.cpp
+++ b/src/os2/radiobut.cpp
@@ -21,12 +21,18 @@
 #include "wx/setup.h"
 #include "wx/radiobut.h"
 #include "wx/brush.h"
+#include "wx/dcscreen.h"
+#include "wx/settings.h"
 #endif
 
 #include "wx/os2/private.h"
 
 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
 
+extern void  wxAssociateWinWithHandle( HWND         hWnd
+                                      ,wxWindowOS2* pWin
+                                     );
+
 void wxRadioButton::Init()
 {
     m_bFocusJustSet = FALSE;
@@ -47,9 +53,7 @@ bool wxRadioButton::Create(
 , const wxPoint&                    rPos
 , const wxSize&                     rSize
 , long                              lStyle
-#if wxUSE_VALIDATORS
 , const wxValidator&                rValidator
-#endif
 , const wxString&                   rsName
 )
 {
@@ -58,15 +62,27 @@ bool wxRadioButton::Create(
                         ,rPos
                         ,rSize
                         ,lStyle
-#if wxUSE_VALIDATORS
                         ,rValidator
-#endif
                         ,rsName))
         return FALSE;
 
-    long                            lSstyle = HasFlag(wxRB_GROUP) ? WS_GROUP : 0;
+    long                            lSstyle = WS_TABSTOP;
+
+    if (HasFlag(wxRB_GROUP))
+        lSstyle |= WS_GROUP;
 
-    lSstyle |= BS_AUTORADIOBUTTON;
+    //
+    // wxRB_SINGLE is a temporary workaround for the following problem: if you
+    // have 2 radiobuttons in the same group but which are not consecutive in
+    // the dialog, Windows can enter an infinite loop! The simplest way to
+    // reproduce it is to create radio button, then a panel and then another
+    // radio button: then checking the last button hangs the app.
+    //
+    // Ideally, we'd detect (and avoid) such situation automatically but for
+    // now, as I don't know how to do it, just allow the user to create
+    // BS_RADIOBUTTON buttons for such situations.
+    //
+    lSstyle |= HasFlag(wxRB_SINGLE) ? BS_RADIOBUTTON : BS_AUTORADIOBUTTON;
 
     if (HasFlag(wxCLIP_SIBLINGS))
         lSstyle |= WS_CLIPSIBLINGS;
@@ -80,6 +96,7 @@ bool wxRadioButton::Create(
                          ))
         return FALSE;
 
+    wxAssociateWinWithHandle(m_hWnd, this);
     if (HasFlag(wxRB_GROUP))
         SetValue(TRUE);
 
@@ -141,18 +158,38 @@ bool wxRadioButton::OS2Command(
 , WXWORD                            wId
 )
 {
-    if (wParam == BN_CLICKED)
+    if (wParam != BN_CLICKED)
+        return FALSE;
+
+    if (m_bFocusJustSet)
     {
+        //
+        // See above: we want to ignore this event
+        //
+        m_bFocusJustSet = FALSE;
+    }
+    else
+    {
+        bool                        bIsChecked = GetValue();
+
+        if (HasFlag(wxRB_SINGLE))
+        {
+            //
+            // When we use a "manual" radio button, we have to check the button
+            // ourselves -- but it's reset to unchecked state by the user code
+            // (presumably when another button is pressed)
+            //
+            if (!bIsChecked )
+                SetValue(TRUE);
+        }
         wxCommandEvent              rEvent( wxEVT_COMMAND_RADIOBUTTON_SELECTED
                                            ,m_windowId
                                           );
 
         rEvent.SetEventObject(this);
         ProcessCommand(rEvent);
-        return TRUE;
     }
-    else
-        return FALSE;
+    return TRUE;
 } // end of wxRadioButton::OS2Command
 
 void wxRadioButton::SetFocus()
@@ -183,5 +220,91 @@ void wxRadioButton::SetValue(
 )
 {
     ::WinSendMsg((HWND)GetHWND(), BM_SETCHECK, (MPARAM)bValue, (MPARAM)0);
+    if (bValue)
+    {
+        const wxWindowList&         rSiblings = GetParent()->GetChildren();
+        wxWindowList::Node*         pNodeThis = rSiblings.Find(this);
+
+        wxCHECK_RET(pNodeThis, _T("radio button not a child of its parent?"));
+
+        //
+        // If it's not the first item of the group ...
+        //
+        if ( !HasFlag(wxRB_GROUP) )
+        {
+            //
+            // ...turn off all radio buttons before this one
+            //
+            for ( wxWindowList::Node* pNodeBefore = pNodeThis->GetPrevious();
+                  pNodeBefore;
+                  pNodeBefore = pNodeBefore->GetPrevious() )
+            {
+                wxRadioButton*      pBtn = wxDynamicCast( pNodeBefore->GetData()
+                                                         ,wxRadioButton
+                                                        );
+                if (!pBtn)
+                {
+                    //
+                    // The radio buttons in a group must be consecutive, so there
+                    // are no more of them
+                    //
+                    break;
+                }
+                pBtn->SetValue(FALSE);
+                if (pBtn->HasFlag(wxRB_GROUP))
+                {
+                    //
+                    // Even if there are other radio buttons before this one,
+                    // they're not in the same group with us
+                    //
+                    break;
+                }
+            }
+        }
+
+        //
+        // ... and all after this one
+        //
+        for (wxWindowList::Node* pNodeAfter = pNodeThis->GetNext();
+             pNodeAfter;
+             pNodeAfter = pNodeAfter->GetNext())
+        {
+            wxRadioButton*          pBtn = wxDynamicCast( pNodeAfter->GetData()
+                                                         ,wxRadioButton
+                                                        );
+
+            if (!pBtn || pBtn->HasFlag(wxRB_GROUP) )
+            {
+                //
+                // No more buttons or the first button of the next group
+                //
+                break;
+            }
+            pBtn->SetValue(FALSE);
+        }
+    }
 } // end of wxRadioButton::SetValue
 
+MRESULT wxRadioButton::OS2WindowProc(
+  WXUINT                            uMsg
+, WXWPARAM                          wParam
+, WXLPARAM                          lParam
+)
+{
+    if (uMsg == WM_SETFOCUS)
+    {
+        m_bFocusJustSet = TRUE;
+
+        MRESULT                     mRc = wxControl::OS2WindowProc( uMsg
+                                                                   ,wParam
+                                                                   ,lParam
+                                                                  );
+
+        m_bFocusJustSet = FALSE;
+        return mRc;
+    }
+    return wxControl::OS2WindowProc( uMsg
+                                    ,wParam
+                                    ,lParam
+                                   );
+} // end of wxRadioButton::OS2WindowProc