+int wxMessageDialog::ShowModal()
+{
+ int resultbutton = wxID_CANCEL;
+
+ const long style = GetMessageDialogStyle();
+
+ wxASSERT_MSG( (style & 0x3F) != wxYES, wxT("this style is not supported on Mac") );
+
+ AlertType alertType = kAlertPlainAlert;
+ if (style & wxICON_EXCLAMATION)
+ alertType = kAlertCautionAlert;
+ else if (style & wxICON_HAND)
+ alertType = kAlertStopAlert;
+ else if (style & wxICON_INFORMATION)
+ alertType = kAlertNoteAlert;
+ else if (style & wxICON_QUESTION)
+ alertType = kAlertNoteAlert;
+
+
+ // work out what to display
+ // if the extended text is empty then we use the caption as the title
+ // and the message as the text (for backwards compatibility)
+ // but if the extended message is not empty then we use the message as the title
+ // and the extended message as the text because that makes more sense
+
+ wxString msgtitle,msgtext;
+ if(m_extendedMessage.IsEmpty())
+ {
+ msgtitle = m_caption;
+ msgtext = m_message;
+ }
+ else
+ {
+ msgtitle = m_message;
+ msgtext = m_extendedMessage;
+ }
+
+
+ if ( !wxIsMainThread() )
+ {
+ CFStringRef defaultButtonTitle = NULL;
+ CFStringRef alternateButtonTitle = NULL;
+ CFStringRef otherButtonTitle = NULL;
+
+ wxMacCFStringHolder cfTitle( msgtitle, m_font.GetEncoding() );
+ wxMacCFStringHolder cfText( msgtext, m_font.GetEncoding() );
+
+ wxMacCFStringHolder cfNoString( m_no.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfYesString( m_yes.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfOKString( m_ok.c_str() , m_font.GetEncoding()) ;
+ wxMacCFStringHolder cfCancelString( m_cancel.c_str(), m_font.GetEncoding() );
+
+ int buttonId[4] = { 0, 0, 0, wxID_CANCEL /* time-out */ };
+
+ if (style & wxYES_NO)
+ {
+ if ( style & wxNO_DEFAULT )
+ {
+ defaultButtonTitle = cfNoString;
+ alternateButtonTitle = cfYesString;
+ buttonId[0] = wxID_NO;
+ buttonId[1] = wxID_YES;
+ }
+ else
+ {
+ defaultButtonTitle = cfYesString;
+ alternateButtonTitle = cfNoString;
+ buttonId[0] = wxID_YES;
+ buttonId[1] = wxID_NO;
+ }
+ if (style & wxCANCEL)
+ {
+ otherButtonTitle = cfCancelString;
+ buttonId[2] = wxID_CANCEL;
+ }
+ }
+ else
+ {
+ // the MSW implementation even shows an OK button if it is not specified, we'll do the same
+ buttonId[0] = wxID_OK;
+ // using null as default title does not work on earlier systems
+ defaultButtonTitle = cfOKString;
+ if (style & wxCANCEL)
+ {
+ alternateButtonTitle = cfCancelString;
+ buttonId[1] = wxID_CANCEL;
+ }
+ }
+
+ CFOptionFlags exitButton;
+ OSStatus err = CFUserNotificationDisplayAlert(
+ 0, alertType, NULL, NULL, NULL, cfTitle, cfText,
+ defaultButtonTitle, alternateButtonTitle, otherButtonTitle, &exitButton );
+ if (err == noErr)
+ resultbutton = buttonId[exitButton];
+ }
+ else
+ {
+ short result;
+
+ AlertStdCFStringAlertParamRec param;
+ wxMacCFStringHolder cfNoString( m_no.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfYesString( m_yes.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfOKString( m_ok.c_str(), m_font.GetEncoding() );
+ wxMacCFStringHolder cfCancelString( m_cancel.c_str(), m_font.GetEncoding() );
+
+ wxMacCFStringHolder cfTitle( msgtitle, m_font.GetEncoding() );
+ wxMacCFStringHolder cfText( msgtext, m_font.GetEncoding() );
+
+ param.movable = true;
+ param.flags = 0;
+ param.version = kStdCFStringAlertVersionOne;
+
+ bool skipDialog = false;
+
+ if (style & wxYES_NO)
+ {
+ if (style & wxCANCEL)
+ {
+ param.defaultText = cfYesString;
+ param.cancelText = cfCancelString;
+ param.otherText = cfNoString;
+ param.helpButton = false;
+ param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
+ param.cancelButton = kAlertStdAlertCancelButton;
+ }
+ else
+ {
+ param.defaultText = cfYesString;
+ param.cancelText = NULL;
+ param.otherText = cfNoString;
+ param.helpButton = false;
+ param.defaultButton = style & wxNO_DEFAULT ? kAlertStdAlertOtherButton : kAlertStdAlertOKButton;
+ param.cancelButton = 0;
+ }
+ }
+ // the MSW implementation even shows an OK button if it is not specified, we'll do the same
+ else
+ {
+ if (style & wxCANCEL)
+ {
+ // that's a cancel missing
+ param.defaultText = cfOKString;
+ param.cancelText = cfCancelString;
+ param.otherText = NULL;
+ param.helpButton = false;
+ param.defaultButton = kAlertStdAlertOKButton;
+ param.cancelButton = 0;
+ }
+ else
+ {
+ param.defaultText = cfOKString;
+ param.cancelText = NULL;
+ param.otherText = NULL;
+ param.helpButton = false;
+ param.defaultButton = kAlertStdAlertOKButton;
+ param.cancelButton = 0;
+ }
+ }
+
+ param.position = kWindowDefaultPosition;
+ if ( !skipDialog )
+ {
+ DialogRef alertRef;
+ CreateStandardAlert( alertType, cfTitle, cfText, ¶m, &alertRef );
+ RunStandardAlert( alertRef, NULL, &result );
+ }
+ else
+ {
+ return wxID_CANCEL;
+ }
+
+ if (style & wxOK)
+ {
+ switch ( result )
+ {
+ case 1:
+ resultbutton = wxID_OK;
+ break;
+
+ case 2:
+ // TODO: add Cancel button
+ // if (style & wxCANCEL)
+ // resultbutton = wxID_CANCEL;
+ break;
+
+ case 3:
+ default:
+ break;
+ }
+ }
+ else if (style & wxYES_NO)
+ {
+ switch ( result )
+ {
+ case 1:
+ resultbutton = wxID_YES;
+ break;
+
+ case 2:
+ if (!(style & wxCANCEL))
+ resultbutton = wxID_CANCEL;
+ break;
+
+ case 3:
+ resultbutton = wxID_NO;
+ break;
+
+ default:
+ break;
+ }
+ }
+ }
+
+ return resultbutton;
+}