src/motif/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17     #pragma implementation "msgdlg.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 #include <X11/Xlib.h>
  25
  26 #include <Xm/Xm.h>
  27 #include <Xm/MessageB.h>
  28
  29 #include "wx/app.h"
  30 #include "wx/intl.h"
  31 #include "wx/motif/msgdlg.h"
  32 #include "wx/motif/private.h"
  33
  34 // ----------------------------------------------------------------------------
  35 // macros
  36 // ----------------------------------------------------------------------------
  37
  38 #if !USE_SHARED_LIBRARY
  39     IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  40 #endif
  41
  42 // ============================================================================
  43 // implementation
  44 // ============================================================================
  45
  46 // ----------------------------------------------------------------------------
  47 // the callbacks for message box buttons
  48 // ----------------------------------------------------------------------------
  49
  50 // the common part
  51 static void msgboxCallBack(Widget w, int client_data, int id)
  52 {
  53     // close the dialog
  54     XtUnmanageChild(w);
  55
  56     wxMessageDialog *dlg = (wxMessageDialog *)client_data;
  57     dlg->SetResult(id);
  58 }
  59
  60 static void msgboxCallBackOk(Widget w,
  61                              int client_data,
  62                              XmAnyCallbackStruct *WXUNUSED(call_data))
  63 {
  64     msgboxCallBack(w, client_data, wxID_OK);
  65 }
  66
  67 static void msgboxCallBackCancel(Widget w,
  68                                  int client_data,
  69                                  XmAnyCallbackStruct *WXUNUSED(call_data))
  70 {
  71     msgboxCallBack(w, client_data, wxID_CANCEL);
  72 }
  73
  74 static void msgboxCallBackHelp(Widget w,
  75                                int client_data,
  76                                XmAnyCallbackStruct *WXUNUSED(call_data))
  77 {
  78     msgboxCallBack(w, client_data, wxID_HELP);
  79 }
  80
  81 static void msgboxCallBackClose(Widget w,
  82                                 int client_data,
  83                                 XmAnyCallbackStruct *WXUNUSED(call_data))
  84 {
  85     msgboxCallBack(w, client_data, wxID_CANCEL);
  86 }
  87
  88 // ----------------------------------------------------------------------------
  89 // wxMessageDialog
  90 // ----------------------------------------------------------------------------
  91
  92 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  93                                  const wxString& message,
  94                                  const wxString& caption,
  95                                  long style,
  96                                  const wxPoint& WXUNUSED(pos))
  97 {
  98     m_caption = caption;
  99     m_message = message;
 100     m_dialogStyle = style;
 101     m_parent = parent;
 102 }
 103
 104 int wxMessageDialog::ShowModal()
 105 {
 106     Widget (*dialogCreateFunction)(Widget, String, ArgList, Cardinal) = NULL;
 107     if ( m_dialogStyle & wxYES_NO )
 108     {
 109         // if we have [Yes], it must be a question
 110         dialogCreateFunction = XmCreateQuestionDialog;
 111     }
 112     else if ( m_dialogStyle & wxICON_STOP )
 113     {
 114         // error dialog is the one with error icon...
 115         dialogCreateFunction = XmCreateErrorDialog;
 116     }
 117     else if ( m_dialogStyle & wxICON_EXCLAMATION )
 118     {
 119         // ...and the warning dialog too
 120         dialogCreateFunction = XmCreateWarningDialog;
 121     }
 122     else
 123     {
 124         // finally, use the info dialog by default
 125         dialogCreateFunction = XmCreateInformationDialog;
 126     }
 127
 128     // prepare the arg list
 129     Arg args[2];
 130     int ac = 0;
 131
 132     wxXmString text(m_message);
 133     wxXmString title(m_caption);
 134     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 135     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 136
 137     // do create message box
 138     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 139     if ( !wParent )
 140     {
 141         wxWindow *window = wxTheApp->GetTopWindow();
 142         if ( !window )
 143         {
 144             wxFAIL_MSG("can't show message box without parent window");
 145
 146             return wxID_CANCEL;
 147         }
 148
 149         wParent = GetWidget(window);
 150     }
 151
 152     Widget wMsgBox = (*dialogCreateFunction)(wParent, "", args, ac);
 153
 154     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 155
 156     // get the buttons which we might either remove or rename
 157     // depending on the requested style
 158     //
 159     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 160     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 161     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 162
 163     if ( m_dialogStyle & wxYES_NO )
 164     {
 165         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 166
 167         if ( m_dialogStyle & wxCANCEL )
 168         {
 169             // use the cancel button for No and the help button for
 170             // Cancel  Yuk :-)  MB
 171             //
 172             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 173             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 174             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 175         }
 176         else
 177         {
 178             // no cancel button requested...
 179             // remove the help button and use cancel for no
 180             //
 181             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 182             XtUnmanageChild(wBtnHelp);
 183         }
 184     }
 185     else
 186     {
 187         // remove the help button and the cancel button (unless it was
 188         // requested)
 189         //
 190         XtUnmanageChild(wBtnHelp);
 191         if ( !(m_dialogStyle & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 192     }
 193
 194     // set the callbacks for the message box buttons
 195     XtAddCallback(wMsgBox, XmNokCallback,
 196                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 197     XtAddCallback(wMsgBox, XmNcancelCallback,
 198                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 199     XtAddCallback(wMsgBox, XmNhelpCallback,
 200                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 201     XtAddCallback(wMsgBox, XmNunmapCallback,
 202                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 203
 204     // show it as a modal dialog
 205     XtManageChild(wMsgBox);
 206     XtAddGrab(wMsgBox, True, False);
 207
 208     // the m_result will be changed when message box goes away
 209     m_result = -1;
 210
 211     // local message loop
 212     XtAppContext context = XtWidgetToApplicationContext(wParent);
 213     XEvent event;
 214     while ( m_result == -1 )
 215     {
 216         XtAppNextEvent(context, &event);
 217         XtDispatchEvent(&event);
 218     }
 219
 220     // translate the result if necessary
 221     if ( m_dialogStyle & wxYES_NO )
 222     {
 223         if ( m_result == wxID_OK )
 224             m_result = wxID_YES;
 225         else if ( m_result == wxID_CANCEL )
 226             m_result = wxID_NO;
 227         else if ( m_result == wxID_HELP )
 228             m_result = wxID_CANCEL;
 229     }
 230
 231     return m_result;
 232 }
 233