src/osx/carbon/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/msgdlg.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/intl.h"
  18     #include "wx/app.h"
  19 #endif
  20
  21 #include "wx/thread.h"
  22 #include "wx/osx/uma.h"
  23
  24
  25 IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  26
  27
  28 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  29                                  const wxString& message,
  30                                  const wxString& caption,
  31                                  long style,
  32                                  const wxPoint& WXUNUSED(pos))
  33                : wxMessageDialogWithCustomLabels(parent, message, caption, style)
  34 {
  35 }
  36
  37 int wxMessageDialog::ShowModal()
  38 {
  39     int resultbutton = wxID_CANCEL;
  40
  41     const long style = GetMessageDialogStyle();
  42
  43     wxASSERT_MSG( (style & 0x3F) != wxYES,
  44         "this style is not supported on Mac" );
  45
  46     AlertType alertType = kAlertPlainAlert;
  47
  48     switch ( GetEffectiveIcon() )
  49     {
  50         case wxICON_ERROR:
  51             alertType = kAlertStopAlert;
  52             break;
  53
  54         case wxICON_WARNING:
  55             alertType = kAlertCautionAlert;
  56             break;
  57
  58         case wxICON_QUESTION:
  59         case wxICON_INFORMATION:
  60             alertType = kAlertNoteAlert;
  61             break;
  62     }
  63
  64     // (the standard alert has two slots [title, text]
  65     //  for the three wxStrings [caption, message, extended message])
  66     //
  67     // if the extended text is empty we use the caption and
  68     // the message (for backwards compatibility)
  69     //
  70     // if the extended text is not empty we ignore the caption
  71     // and use the message and the extended message
  72
  73
  74     wxString msgtitle,msgtext;
  75     if(m_extendedMessage.IsEmpty())
  76     {
  77         if ( m_caption.IsEmpty() )
  78             msgtitle = m_message;
  79         else
  80         {
  81             msgtitle = m_caption;
  82             msgtext  = m_message;
  83         }
  84     }
  85     else
  86     {
  87         msgtitle = m_message;
  88         msgtext  = m_extendedMessage;
  89     }
  90
  91
  92     if ( !wxIsMainThread() )
  93     {
  94         CFStringRef defaultButtonTitle = NULL;
  95         CFStringRef alternateButtonTitle = NULL;
  96         CFStringRef otherButtonTitle = NULL;
  97
  98         wxCFStringRef cfTitle( msgtitle, GetFont().GetEncoding() );
  99         wxCFStringRef cfText( msgtext, GetFont().GetEncoding() );
 100
 101         wxCFStringRef cfNoString( GetNoLabel().c_str(), GetFont().GetEncoding() );
 102         wxCFStringRef cfYesString( GetYesLabel().c_str(), GetFont().GetEncoding() );
 103         wxCFStringRef cfOKString( GetOKLabel().c_str() , GetFont().GetEncoding()) ;
 104         wxCFStringRef cfCancelString( GetCancelLabel().c_str(), GetFont().GetEncoding() );
 105
 106         int buttonId[4] = { 0, 0, 0, wxID_CANCEL /* time-out */ };
 107
 108         if (style & wxYES_NO)
 109         {
 110             if ( style & wxNO_DEFAULT )
 111             {
 112                 defaultButtonTitle = cfNoString;
 113                 alternateButtonTitle = cfYesString;
 114                 buttonId[0] = wxID_NO;
 115                 buttonId[1] = wxID_YES;
 116             }
 117             else
 118             {
 119                 defaultButtonTitle = cfYesString;
 120                 alternateButtonTitle = cfNoString;
 121                 buttonId[0] = wxID_YES;
 122                 buttonId[1] = wxID_NO;
 123             }
 124             if (style & wxCANCEL)
 125             {
 126                 otherButtonTitle = cfCancelString;
 127                 buttonId[2] = wxID_CANCEL;
 128             }
 129         }
 130         else
 131         {
 132             // the MSW implementation even shows an OK button if it is not specified, we'll do the same
 133             buttonId[0] = wxID_OK;
 134             // using null as default title does not work on earlier systems
 135             defaultButtonTitle = cfOKString;
 136             if (style & wxCANCEL)
 137             {
 138                 alternateButtonTitle = cfCancelString;
 139                 buttonId[1] = wxID_CANCEL;
 140             }
 141         }
 142
 143         CFOptionFlags exitButton;
 144         OSStatus err = CFUserNotificationDisplayAlert(
 145             0, alertType, NULL, NULL, NULL, cfTitle, cfText,
 146             defaultButtonTitle, alternateButtonTitle, otherButtonTitle, &exitButton );
 147         if (err == noErr)
 148             resultbutton = buttonId[exitButton];
 149     }
 150     else
 151     {
 152         short result;
 153
 154         AlertStdCFStringAlertParamRec param;
 155         wxCFStringRef cfNoString( GetNoLabel().c_str(), GetFont().GetEncoding() );
 156         wxCFStringRef cfYesString( GetYesLabel().c_str(), GetFont().GetEncoding() );
 157         wxCFStringRef cfOKString( GetOKLabel().c_str(), GetFont().GetEncoding() );
 158         wxCFStringRef cfCancelString( GetCancelLabel().c_str(), GetFont().GetEncoding() );
 159
 160         wxCFStringRef cfTitle( msgtitle, GetFont().GetEncoding() );
 161         wxCFStringRef cfText = msgtext.IsEmpty() ? NULL : wxCFStringRef( msgtext, GetFont().GetEncoding() );
 162
 163         param.movable = true;
 164         param.flags = 0;
 165         param.version = kStdCFStringAlertVersionOne;
 166
 167         bool skipDialog = false;
 168
 169         if (style & wxYES_NO)
 170         {
 171             if (style & wxCANCEL)
 172             {
 173                 param.defaultText = cfYesString;
 174                 param.cancelText = cfCancelString;
 175                 param.otherText = cfNoString;
 176                 param.helpButton = false;
 177                 param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
 178                 param.cancelButton = kAlertStdAlertCancelButton;
 179             }
 180             else
 181             {
 182                 param.defaultText = cfYesString;
 183                 param.cancelText = NULL;
 184                 param.otherText = cfNoString;
 185                 param.helpButton = false;
 186                 param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
 187                 param.cancelButton = 0;
 188             }
 189         }
 190         // the MSW implementation even shows an OK button if it is not specified, we'll do the same
 191         else
 192         {
 193             if (style & wxCANCEL)
 194             {
 195                 // that's a cancel missing
 196                 param.defaultText = cfOKString;
 197                 param.cancelText = cfCancelString;
 198                 param.otherText = NULL;
 199                 param.helpButton = false;
 200                 param.defaultButton = kAlertStdAlertOKButton;
 201                 param.cancelButton = 0;
 202             }
 203             else
 204             {
 205                 param.defaultText = cfOKString;
 206                 param.cancelText = NULL;
 207                 param.otherText = NULL;
 208                 param.helpButton = false;
 209                 param.defaultButton = kAlertStdAlertOKButton;
 210                 param.cancelButton = 0;
 211             }
 212         }
 213
 214         param.position = kWindowDefaultPosition;
 215         if ( !skipDialog )
 216         {
 217             DialogRef alertRef;
 218             CreateStandardAlert( alertType, cfTitle, cfText, &param, &alertRef );
 219             wxDialog::OSXBeginModalDialog();
 220             RunStandardAlert( alertRef, NULL, &result );
 221             wxDialog::OSXEndModalDialog();
 222         }
 223         else
 224         {
 225             return wxID_CANCEL;
 226         }
 227
 228         if (style & wxOK)
 229         {
 230             switch ( result )
 231             {
 232             case 1:
 233                 resultbutton = wxID_OK;
 234                 break;
 235
 236             case 2:
 237                 // TODO: add Cancel button
 238                 // if (style & wxCANCEL)
 239                 //     resultbutton = wxID_CANCEL;
 240                 break;
 241
 242             case 3:
 243             default:
 244                 break;
 245             }
 246         }
 247         else if (style & wxYES_NO)
 248         {
 249             switch ( result )
 250             {
 251             case 1:
 252                 resultbutton = wxID_YES;
 253                 break;
 254
 255             case 2:
 256                 if (!(style & wxCANCEL))
 257                     resultbutton = wxID_CANCEL;
 258                 break;
 259
 260             case 3:
 261                 resultbutton = wxID_NO;
 262                 break;
 263
 264             default:
 265                 break;
 266             }
 267         }
 268     }
 269
 270     SetReturnCode(resultbutton);
 271
 272     return resultbutton;
 273 }