Take basic style into account when applying style sheet

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

diff --git a/src/msw/msgdlg.cpp b/src/msw/msgdlg.cpp
index a3f4628ae1d358e8df20e82da04620eec7661294..177da7d522d8cf4434041ae07a797c632a40cb86 100644 (file)
--- a/src/msw/msgdlg.cpp
+++ b/src/msw/msgdlg.cpp
@@ -1,138 +1,207 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msgdlg.cpp
+// Name:        src/msw/msgdlg.cpp

 // Purpose:     wxMessageDialog
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Purpose:     wxMessageDialog
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "msgdlg.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

-#ifndef WX_PRECOMP
-#include <stdio.h>
-#include "wx/defs.h"
-#include "wx/utils.h"
-#include "wx/dialog.h"
+#if wxUSE_MSGDLG
+

 #include "wx/msgdlg.h"
 #include "wx/msgdlg.h"

+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/utils.h"
+    #include "wx/dialog.h"
+    #include "wx/hashmap.h"

 #endif
 
 #include "wx/msw/private.h"
 
 #endif
 
 #include "wx/msw/private.h"
 

-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define wxDIALOG_DEFAULT_X 300
-#define wxDIALOG_DEFAULT_Y 300
+// For MB_TASKMODAL
+#ifdef __WXWINCE__
+#include "wx/msw/wince/missing.h"
+#endif

 
 

-#if !USE_SHARED_LIBRARY

 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)

-#endif

 
 

-wxMessageDialog::wxMessageDialog(wxWindow *parent, const wxString& message, const wxString& caption,
-        long style, const wxPoint& pos)
+// there can potentially be one message box per thread so we use a hash map
+// with thread ids as keys and (currently shown) message boxes as values
+//
+// TODO: replace this with wxTLS once it's available
+WX_DECLARE_HASH_MAP(unsigned long, wxMessageDialog *,
+                    wxIntegerHash, wxIntegerEqual,
+                    wxMessageDialogMap);
+
+namespace

 {
 {

-    m_caption = caption;
-    m_message = message;
-    m_dialogStyle = style;
-    m_parent = parent;
-}

 
 

-int wxMessageDialog::ShowModal(void)
+wxMessageDialogMap& HookMap()

 {
 {

-  HWND hWnd = 0;
-  if (m_parent) hWnd = (HWND) m_parent->GetHWND();
-  unsigned int msStyle = MB_OK;
-  if (m_dialogStyle & wxYES_NO)
-  {
-    if (m_dialogStyle & wxCANCEL)
-      msStyle = MB_YESNOCANCEL;
-    else
-      msStyle = MB_YESNO;
-  }
-  if (m_dialogStyle & wxOK)
-  {
-    if (m_dialogStyle & wxCANCEL)
-      msStyle = MB_OKCANCEL;
-    else
-      msStyle = MB_OK;
-  }
-  if (m_dialogStyle & wxICON_EXCLAMATION)
-    msStyle |= MB_ICONEXCLAMATION;
-  else if (m_dialogStyle & wxICON_HAND)
-    msStyle |= MB_ICONHAND;
-  else if (m_dialogStyle & wxICON_INFORMATION)
-    msStyle |= MB_ICONINFORMATION;
-  else if (m_dialogStyle & wxICON_QUESTION)
-    msStyle |= MB_ICONQUESTION;
-
-  if (hWnd)
-    msStyle |= MB_APPLMODAL;
-  else
-    msStyle |= MB_TASKMODAL;
-    
-  int msAns = MessageBox(hWnd, (LPCSTR)(const char *)m_message, (LPCSTR)(const char *)m_caption, msStyle);
-  int ans = wxOK;
-  switch (msAns)
-  {
-    case IDCANCEL:
-      ans = wxID_CANCEL;
-      break;
-    case IDOK:
-      ans = wxID_OK;
-      break;
-    case IDYES:
-      ans = wxID_YES;
-      break;
-    case IDNO:
-      ans = wxID_NO;
-      break;
-  }
-  return ans;
+    static wxMessageDialogMap s_Map;
+
+    return s_Map;

 }
 
 }
 

-/*
- * Common dialogs
- *
- */
- 
-// Pop up a message box
-int wxMessageBox(const wxString& message, const wxString& caption, const long style,
-                 wxWindow *parent, const int x, const int y)
+} // anonymous namespace
+
+/* static */
+WXLRESULT wxCALLBACK
+wxMessageDialog::HookFunction(int code, WXWPARAM wParam, WXLPARAM lParam)

 {
 {

-       wxMessageDialog dialog(parent, message, caption, style);
-
-       int ans = dialog.ShowModal();
-       switch ( ans )
-       {
-               case wxID_OK:
-                       return wxOK;
-                       break;
-               case wxID_YES:
-                       return wxYES;
-                       break;
-               case wxID_NO:
-                       return wxNO;
-                       break;
-               default:
-               case wxID_CANCEL:
-                       return wxCANCEL;
-                       break;
-       }
-
-       return ans;
+    // Find the thread-local instance of wxMessageDialog
+    const DWORD tid = ::GetCurrentThreadId();
+    wxMessageDialogMap::iterator node = HookMap().find(tid);
+    wxCHECK_MSG( node != HookMap().end(), false,
+                    wxT("bogus thread id in wxMessageDialog::Hook") );
+
+    wxMessageDialog *  const wnd = node->second;
+
+    const HHOOK hhook = (HHOOK)wnd->m_hook;
+    const LRESULT rc = ::CallNextHookEx(hhook, code, wParam, lParam);
+
+    if ( code == HC_ACTION && lParam )
+    {
+        const CWPRETSTRUCT * const s = (CWPRETSTRUCT *)lParam;
+
+        if ( s->message == HCBT_ACTIVATE )
+        {
+            // we won't need this hook any longer
+            ::UnhookWindowsHookEx(hhook);
+            wnd->m_hook = NULL;
+            HookMap().erase(tid);
+
+            if ( wnd->GetMessageDialogStyle() & wxCENTER )
+            {
+                wnd->SetHWND(s->hwnd);
+                wnd->Center(); // center on parent
+                wnd->SetHWND(NULL);
+            }
+            //else: default behaviour, center on screen
+        }
+    }
+
+    return rc;

 }
 
 }
 

+int wxMessageDialog::ShowModal()
+{
+    if ( !wxTheApp->GetTopWindow() )
+    {
+        // when the message box is shown from wxApp::OnInit() (i.e. before the
+        // message loop is entered), this must be done or the next message box
+        // will never be shown - just try putting 2 calls to wxMessageBox() in
+        // OnInit() to see it
+        while ( wxTheApp->Pending() )
+            wxTheApp->Dispatch();
+    }
+
+    // use the top level window as parent if none specified
+    if ( !m_parent )
+        m_parent = FindSuitableParent();
+    HWND hWnd = m_parent ? GetHwndOf(m_parent) : NULL;
+
+    // translate wx style in MSW
+    unsigned int msStyle = MB_OK;
+    const long wxStyle = GetMessageDialogStyle();
+    if (wxStyle & wxYES_NO)
+    {
+#if !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
+        if (wxStyle & wxCANCEL)
+            msStyle = MB_YESNOCANCEL;
+        else
+#endif // !(__SMARTPHONE__ && __WXWINCE__)
+            msStyle = MB_YESNO;
+
+        if (wxStyle & wxNO_DEFAULT)
+            msStyle |= MB_DEFBUTTON2;
+    }
+
+    if (wxStyle & wxOK)
+    {
+        if (wxStyle & wxCANCEL)
+            msStyle = MB_OKCANCEL;
+        else
+            msStyle = MB_OK;
+    }
+    if (wxStyle & wxICON_EXCLAMATION)
+        msStyle |= MB_ICONEXCLAMATION;
+    else if (wxStyle & wxICON_HAND)
+        msStyle |= MB_ICONHAND;
+    else if (wxStyle & wxICON_INFORMATION)
+        msStyle |= MB_ICONINFORMATION;
+    else if (wxStyle & wxICON_QUESTION)
+        msStyle |= MB_ICONQUESTION;
+
+    if ( wxStyle & wxSTAY_ON_TOP )
+        msStyle |= MB_TOPMOST;
+
+#ifndef __WXWINCE__
+    if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
+        msStyle |= MB_RTLREADING | MB_RIGHT;
+#endif
+
+    if (hWnd)
+        msStyle |= MB_APPLMODAL;
+    else
+        msStyle |= MB_TASKMODAL;
+
+    // per MSDN documentation for MessageBox() we can prefix the message with 2
+    // right-to-left mark characters to tell the function to use RTL layout
+    // (unfortunately this only works in Unicode builds)
+    wxString message = GetFullMessage();
+#if wxUSE_UNICODE
+    if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
+    {
+        // NB: not all compilers support \u escapes
+        static const wchar_t wchRLM = 0x200f;
+        message.Prepend(wxString(wchRLM, 2));
+    }
+#endif // wxUSE_UNICODE
+
+    // install the hook if we need to position the dialog in a non-default way
+    if ( wxStyle & wxCENTER )
+    {
+        const DWORD tid = ::GetCurrentThreadId();
+        m_hook = ::SetWindowsHookEx(WH_CALLWNDPROCRET,
+                                    &wxMessageDialog::HookFunction, NULL, tid);
+        HookMap()[tid] = this;
+    }
+
+    // do show the dialog
+    int msAns = MessageBox(hWnd, message.wx_str(), m_caption.wx_str(), msStyle);
+    int ans;
+    switch (msAns)
+    {
+        default:
+            wxFAIL_MSG(_T("unexpected ::MessageBox() return code"));
+            // fall through
+
+        case IDCANCEL:
+            ans = wxID_CANCEL;
+            break;
+        case IDOK:
+            ans = wxID_OK;
+            break;
+        case IDYES:
+            ans = wxID_YES;
+            break;
+        case IDNO:
+            ans = wxID_NO;
+            break;
+    }
+    return ans;
+}

 
 

+#endif // wxUSE_MSGDLG