]> git.saurik.com Git - wxWidgets.git/blobdiff - src/os2/toplevel.cpp
added sample showing how to use custom renderers and load them from DLL
[wxWidgets.git] / src / os2 / toplevel.cpp
index 82cc9d56292a858fcd6f5639246174826b44c995..3d292873a0cdb7ec1fea70c9b9a35151d0fe11e0 100644 (file)
@@ -6,7 +6,7 @@
 // Created:     30.12.01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
-// License:     wxWindows license
+// License:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
     #include "wx/intl.h"
     #include "wx/frame.h"
     #include "wx/control.h"
+    #include "wx/containr.h"        // wxSetFocusToChild()
 #endif //WX_PRECOMP
 
+#include "wx/module.h"        // wxSetFocusToChild()
 #include "wx/os2/private.h"
 
 // ----------------------------------------------------------------------------
@@ -57,6 +59,15 @@ extern void          wxAssociateWinWithHandle( HWND         hWnd
                                               ,wxWindowOS2* pWin
                                              );
 bool                 wxTopLevelWindowOS2::m_sbInitialized = FALSE;
+wxWindow*            wxTopLevelWindowOS2::m_spHiddenParent = NULL;
+
+// ============================================================================
+// wxTopLevelWindowOS2 implementation
+// ============================================================================
+
+BEGIN_EVENT_TABLE(wxTopLevelWindowOS2, wxTopLevelWindowBase)
+    EVT_ACTIVATE(wxTopLevelWindowOS2::OnActivate)
+END_EVENT_TABLE()
 
 // ============================================================================
 // wxTopLevelWindowMSW implementation
@@ -69,24 +80,58 @@ MRESULT EXPENTRY wxDlgProc( HWND WXUNUSED(hWnd)
                            ,MPARAM WXUNUSED(lParam)
                           )
 {
-    if (uMessage == WM_INITDLG)
+    switch(uMessage)
     {
-        //
-        // For this message, returning TRUE tells system to set focus to the
-        // first control in the dialog box.
-        //
-        return (MRESULT)TRUE;
-    }
-    else
-    {
-        //
-        // For all the other ones, FALSE means that we didn't process the
-        // message
-        //
-        return (MRESULT)FALSE;
+        case WM_INITDLG:
+            //
+            // For this message, returning TRUE tells system to set focus to
+            // the first control in the dialog box, but we set the focus
+            // ourselves, however in OS/2 we must return true to enable the dialog
+            //
+            return (MRESULT)TRUE;
+        default:
+            //
+            // For all the other ones, FALSE means that we didn't process the
+            // message
+            //
+            return (MRESULT)FALSE;
     }
 } // end of wxDlgProc
 
+// ----------------------------------------------------------------------------
+// wxTLWHiddenParentModule: used to manage the hidden parent window (we need a
+// module to ensure that the window is always deleted)
+// ----------------------------------------------------------------------------
+
+class wxTLWHiddenParentModule : public wxModule
+{
+public:
+    //
+    // Module init/finalize
+    //
+    virtual bool OnInit(void);
+    virtual void OnExit(void);
+
+    //
+    // Get the hidden window (creates on demand)
+    //
+    static HWND GetHWND(void);
+
+private:
+    //
+    // The HWND of the hidden parent
+    //
+    static HWND                     m_shWnd;
+
+    //
+    // The class used to create it
+    //
+    static const wxChar*            m_szClassName;
+    DECLARE_DYNAMIC_CLASS(wxTLWHiddenParentModule)
+}; // end of CLASS wxTLWHiddenParentModule
+
+IMPLEMENT_DYNAMIC_CLASS(wxTLWHiddenParentModule, wxModule)
+
 // ----------------------------------------------------------------------------
 // wxTopLevelWindowOS2 creation
 // ----------------------------------------------------------------------------
@@ -110,8 +155,65 @@ void wxTopLevelWindowOS2::Init()
     m_hFrame    = NULLHANDLE;
     memset(&m_vSwp, 0, sizeof(SWP));
     memset(&m_vSwpClient, 0, sizeof(SWP));
+    m_pWinLastFocused = (wxWindow *)NULL;
 } // end of wxTopLevelWindowIOS2::Init
 
+void wxTopLevelWindowOS2::OnActivate(
+  wxActivateEvent&                  rEvent
+)
+{
+    if (rEvent.GetActive())
+    {
+        //
+        // Restore focus to the child which was last focused
+        //
+        wxLogTrace(_T("focus"), _T("wxTLW %08x activated."), m_hWnd);
+
+        wxWindow*                   pParent = m_pWinLastFocused ? m_pWinLastFocused->GetParent()
+                                                                : NULL;
+        if (!pParent)
+        {
+            pParent = this;
+        }
+
+        wxSetFocusToChild( pParent
+                          ,&m_pWinLastFocused
+                         );
+    }
+    else // deactivating
+    {
+        //
+        // Remember the last focused child if it is our child
+        //
+        m_pWinLastFocused = FindFocus();
+
+        //
+        // So we NULL it out if it's a child from some other frame
+        //
+        wxWindow*                   pWin = m_pWinLastFocused;
+
+        while (pWin)
+        {
+            if (pWin->IsTopLevel())
+            {
+                if (pWin != this)
+                {
+                    m_pWinLastFocused = NULL;
+                }
+                break;
+            }
+            pWin = pWin->GetParent();
+        }
+
+        wxLogTrace(_T("focus"),
+                   _T("wxTLW %08x deactivated, last focused: %08x."),
+                   m_hWnd,
+                   m_pWinLastFocused ? GetHwndOf(m_pWinLastFocused)
+                                     : NULL);
+        rEvent.Skip();
+    }
+} // end of wxTopLevelWindowOS2::OnActivate
+
 WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
   long                              lStyle
 , WXDWORD*                          pdwExflags
@@ -166,6 +268,48 @@ WXDWORD wxTopLevelWindowOS2::OS2GetStyle(
     return lMsflags;
 } // end of wxTopLevelWindowOS2::OS2GetCreateWindowFlags
 
+WXHWND wxTopLevelWindowOS2::OS2GetParent() const
+{
+    HWND                            hWndParent = NULL;
+
+    //
+    // For the frames without wxFRAME_FLOAT_ON_PARENT style we should use NULL
+    // parent HWND or it would be always on top of its parent which is not what
+    // we usually want (in fact, we only want it for frames with the
+    // wxFRAME_FLOAT_ON_PARENT flag)
+    //
+    if (HasFlag(wxFRAME_FLOAT_ON_PARENT) )
+    {
+        const wxWindow*             pParent = GetParent();
+
+        if (!pParent)
+        {
+            //
+            // This flag doesn't make sense then and will be ignored
+            //
+            wxFAIL_MSG( _T("wxFRAME_FLOAT_ON_PARENT but no parent?") );
+        }
+        else
+        {
+            hWndParent = GetHwndOf(pParent);
+        }
+    }
+    //else: don't float on parent, must not be owned
+
+    //
+    // Now deal with the 2nd taskbar-related problem (see comments above in
+    // OS2GetStyle())
+    //
+    if (HasFlag(wxFRAME_NO_TASKBAR) && !hWndParent)
+    {
+        //
+        // Use hidden parent
+        //
+        hWndParent = wxTLWHiddenParentModule::GetHWND();
+    }
+    return (WXHWND)hWndParent;
+} // end of wxTopLevelWindowOS2::OS2GetParent
+
 bool wxTopLevelWindowOS2::CreateDialog(
   ULONG                             ulDlgTemplate
 , const wxString&                   rsTitle
@@ -220,9 +364,9 @@ bool wxTopLevelWindowOS2::CreateDialog(
 
     if ( !m_hWnd )
     {
-        wxFAIL_MSG(_("Did you forget to include wx/os2/wx.rc in your resources?"));
+        wxFAIL_MSG(wxT("Did you forget to include wx/os2/wx.rc in your resources?"));
 
-        wxLogSysError(_("Can't create dialog using template '%ul'"), ulDlgTemplate);
+        wxLogSysError(wxT("Can't create dialog using template '%ul'"), ulDlgTemplate);
 
         return FALSE;
     }
@@ -291,7 +435,7 @@ bool wxTopLevelWindowOS2::CreateDialog(
                       ,nY
                       ,nWidth
                       ,nHeight
-                      ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW
+                      ,SWP_MOVE | SWP_SIZE | SWP_ZORDER | SWP_SHOW | SWP_ACTIVATE
                      );
     ::WinQueryWindowPos(GetHwnd(), GetSwp());
     m_hFrame = m_hWnd;
@@ -486,20 +630,26 @@ bool wxTopLevelWindowOS2::Create(
 
 wxTopLevelWindowOS2::~wxTopLevelWindowOS2()
 {
-    wxTopLevelWindows.DeleteObject(this);
-
     if (wxModelessWindows.Find(this))
         wxModelessWindows.DeleteObject(this);
 
     //
-    // If this is the last top-level window, exit.
+    // After destroying an owned window, Windows activates the next top level
+    // window in Z order but it may be different from our owner (to reproduce
+    // this simply Alt-TAB to another application and back before closing the
+    // owned frame) whereas we always want to yield activation to our parent
     //
-    if (wxTheApp && (wxTopLevelWindows.Number() == 0))
+    if (HasFlag(wxFRAME_FLOAT_ON_PARENT))
     {
-        wxTheApp->SetTopWindow(NULL);
-        if ( wxTheApp->GetExitOnFrameDelete() )
+        wxWindow*                   pParent = GetParent();
+
+        if (pParent)
         {
-            ::WinPostMsg(NULL, WM_QUIT, 0, 0);
+            ::WinSetWindowPos( GetHwndOf(pParent)
+                              ,HWND_TOP
+                              ,0, 0, 0, 0
+                              ,SWP_ZORDER
+                             );
         }
     }
 } // end of wxTopLevelWindowOS2::~wxTopLevelWindowOS2
@@ -569,6 +719,14 @@ bool wxTopLevelWindowOS2::Show(
     SWP                             vSwp;
     RECTL                           vRect;
 
+    if (bShow != IsShown() )
+    {
+        m_isShown = bShow;
+    }
+    else
+    {
+        return FALSE;
+    }
     if (bShow)
     {
         if (m_bMaximizeOnShow)
@@ -616,15 +774,6 @@ bool wxTopLevelWindowOS2::Show(
 
             ::WinQueryWindowPos(hWndParent, &vSwp);
             m_bIconized = vSwp.fl & SWP_MINIMIZE;
-            if (hWndParent)
-                ::WinSetWindowPos( hWndParent
-                                  ,HWND_TOP
-                                  ,vSwp.x
-                                  ,vSwp.y
-                                  ,vSwp.cx
-                                  ,vSwp.cy
-                                  ,SWP_ZORDER | SWP_ACTIVATE | SWP_SHOW | SWP_MOVE
-                                 );
             ::WinEnableWindow(hWndParent, TRUE);
         }
     }
@@ -652,7 +801,7 @@ void wxTopLevelWindowOS2::Maximize(
         // We can't maximize the hidden frame because it shows it as well, so
         // just remember that we should do it later in this case
         //
-        m_bMaximizeOnShow = TRUE;
+        m_bMaximizeOnShow = bMaximize;
     }
 } // end of wxTopLevelWindowOS2::Maximize
 
@@ -895,3 +1044,75 @@ bool wxTopLevelWindowOS2::EnableCloseButton(
     return TRUE;
 } // end of wxTopLevelWindowOS2::EnableCloseButton
 
+// ============================================================================
+// wxTLWHiddenParentModule implementation
+// ============================================================================
+
+HWND          wxTLWHiddenParentModule::m_shWnd = NULL;
+const wxChar* wxTLWHiddenParentModule::m_szClassName = NULL;
+
+bool wxTLWHiddenParentModule::OnInit()
+{
+    m_shWnd = NULL;
+    m_szClassName = NULL;
+    return TRUE;
+} // end of wxTLWHiddenParentModule::OnInit
+
+void wxTLWHiddenParentModule::OnExit()
+{
+    if (m_shWnd)
+    {
+        if (!::WinDestroyWindow(m_shWnd))
+        {
+            wxLogLastError(_T("DestroyWindow(hidden TLW parent)"));
+        }
+        m_shWnd = NULL;
+    }
+
+    m_szClassName = NULL;
+} // end of wxTLWHiddenParentModule::OnExit
+
+/* static */
+HWND wxTLWHiddenParentModule::GetHWND()
+{
+    if (!m_shWnd)
+    {
+        if (!m_szClassName)
+        {
+            static const wxChar*    zHIDDEN_PARENT_CLASS = _T("wxTLWHiddenParent");
+
+            if (!::WinRegisterClass( wxGetInstance()
+                                    ,zHIDDEN_PARENT_CLASS
+                                    ,NULL
+                                    ,0
+                                    ,sizeof(ULONG)
+                                   ))
+            {
+                wxLogLastError(_T("RegisterClass(\"wxTLWHiddenParent\")"));
+            }
+            else
+            {
+                m_szClassName = zHIDDEN_PARENT_CLASS;
+            }
+        }
+        m_shWnd = ::WinCreateWindow( HWND_DESKTOP
+                                    ,m_szClassName
+                                    ,""
+                                    ,0L
+                                    ,(LONG)0L
+                                    ,(LONG)0L
+                                    ,(LONG)0L
+                                    ,(LONG)0L
+                                    ,NULLHANDLE
+                                    ,HWND_TOP
+                                    ,0L
+                                    ,NULL
+                                    ,NULL
+                                   );
+        if (!m_shWnd)
+        {
+            wxLogLastError(_T("CreateWindow(hidden TLW parent)"));
+        }
+    }
+    return m_shWnd;
+} // end of wxTLWHiddenParentModule::GetHWND