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 #ifdef __VMS
  25 #pragma message disable nosimpint
  26 #endif
  27 #include <X11/Xlib.h>
  28
  29 #include <Xm/Xm.h>
  30 #include <Xm/MessageB.h>
  31 #ifdef __VMS
  32 #pragma message enable nosimpint
  33 #endif
  34
  35 #include "wx/app.h"
  36 #include "wx/intl.h"
  37 #include "wx/motif/msgdlg.h"
  38 #include "wx/motif/private.h"
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 #if !USE_SHARED_LIBRARY
  45     IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  46 #endif
  47
  48 // ============================================================================
  49 // implementation
  50 // ============================================================================
  51
  52 // ----------------------------------------------------------------------------
  53 // the callbacks for message box buttons
  54 // ----------------------------------------------------------------------------
  55
  56 // the common part
  57 static void msgboxCallBack(Widget w, int client_data, int id)
  58 {
  59     // close the dialog
  60     XtUnmanageChild(w);
  61
  62     wxMessageDialog *dlg = (wxMessageDialog *)client_data;
  63     dlg->SetResult(id);
  64 }
  65
  66 static void msgboxCallBackOk(Widget w,
  67                              int client_data,
  68                              XmAnyCallbackStruct *WXUNUSED(call_data))
  69 {
  70     msgboxCallBack(w, client_data, wxID_OK);
  71 }
  72
  73 static void msgboxCallBackCancel(Widget w,
  74                                  int client_data,
  75                                  XmAnyCallbackStruct *WXUNUSED(call_data))
  76 {
  77     msgboxCallBack(w, client_data, wxID_CANCEL);
  78 }
  79
  80 static void msgboxCallBackHelp(Widget w,
  81                                int client_data,
  82                                XmAnyCallbackStruct *WXUNUSED(call_data))
  83 {
  84     msgboxCallBack(w, client_data, wxID_HELP);
  85 }
  86
  87 static void msgboxCallBackClose(Widget w,
  88                                 int client_data,
  89                                 XmAnyCallbackStruct *WXUNUSED(call_data))
  90 {
  91     msgboxCallBack(w, client_data, wxID_CANCEL);
  92 }
  93
  94 // ----------------------------------------------------------------------------
  95 // wxMessageDialog
  96 // ----------------------------------------------------------------------------
  97
  98 wxMessageDialog::wxMessageDialog(wxWindow *parent,
  99                                  const wxString& message,
 100                                  const wxString& caption,
 101                                  long style,
 102                                  const wxPoint& WXUNUSED(pos))
 103 {
 104     m_caption = caption;
 105     m_message = message;
 106     m_dialogStyle = style;
 107     m_parent = parent;
 108 }
 109
 110 int wxMessageDialog::ShowModal()
 111 {
 112     Widget (*dialogCreateFunction)(Widget, String, ArgList, Cardinal) = NULL;
 113     if ( m_dialogStyle & wxYES_NO )
 114     {
 115         // if we have [Yes], it must be a question
 116         dialogCreateFunction = XmCreateQuestionDialog;
 117     }
 118     else if ( m_dialogStyle & wxICON_STOP )
 119     {
 120         // error dialog is the one with error icon...
 121         dialogCreateFunction = XmCreateErrorDialog;
 122     }
 123     else if ( m_dialogStyle & wxICON_EXCLAMATION )
 124     {
 125         // ...and the warning dialog too
 126         dialogCreateFunction = XmCreateWarningDialog;
 127     }
 128     else
 129     {
 130         // finally, use the info dialog by default
 131         dialogCreateFunction = XmCreateInformationDialog;
 132     }
 133
 134     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 135     if ( !wParent )
 136     {
 137         wxWindow *window = wxTheApp->GetTopWindow();
 138         if ( !window )
 139         {
 140             wxFAIL_MSG("can't show message box without parent window");
 141
 142             return wxID_CANCEL;
 143         }
 144
 145         wParent = GetWidget(window);
 146     }
 147
 148     // prepare the arg list
 149     Arg args[10];
 150     int ac = 0;
 151
 152     wxXmString text(m_message);
 153     wxXmString title(m_caption);
 154     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 155     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 156
 157     wxComputeColours (XtDisplay(wParent), & m_backgroundColour,
 158         (wxColour*) NULL);
 159
 160     XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 161     XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 162     XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 163     XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 164
 165     // do create message box
 166
 167     Widget wMsgBox = (*dialogCreateFunction)(wParent, "", args, ac);
 168
 169     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 170
 171     // get the buttons which we might either remove or rename
 172     // depending on the requested style
 173     //
 174     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 175     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 176     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 177
 178     if ( m_dialogStyle & wxYES_NO )
 179     {
 180         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 181
 182         if ( m_dialogStyle & wxCANCEL )
 183         {
 184             // use the cancel button for No and the help button for
 185             // Cancel  Yuk :-)  MB
 186             //
 187             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 188             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 189             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 190         }
 191         else
 192         {
 193             // no cancel button requested...
 194             // remove the help button and use cancel for no
 195             //
 196             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 197             XtUnmanageChild(wBtnHelp);
 198         }
 199     }
 200     else
 201     {
 202         // remove the help button and the cancel button (unless it was
 203         // requested)
 204         //
 205         XtUnmanageChild(wBtnHelp);
 206         if ( !(m_dialogStyle & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 207     }
 208
 209     // set the callbacks for the message box buttons
 210     XtAddCallback(wMsgBox, XmNokCallback,
 211                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 212     XtAddCallback(wMsgBox, XmNcancelCallback,
 213                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 214     XtAddCallback(wMsgBox, XmNhelpCallback,
 215                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 216     XtAddCallback(wMsgBox, XmNunmapCallback,
 217                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 218
 219     // show it as a modal dialog
 220     XtManageChild(wMsgBox);
 221     XtAddGrab(wMsgBox, True, False);
 222
 223     // the m_result will be changed when message box goes away
 224     m_result = -1;
 225
 226     // local message loop
 227     XtAppContext context = XtWidgetToApplicationContext(wParent);
 228     XEvent event;
 229     while ( m_result == -1 )
 230     {
 231         XtAppNextEvent(context, &event);
 232         XtDispatchEvent(&event);
 233     }
 234
 235     // translate the result if necessary
 236     if ( m_dialogStyle & wxYES_NO )
 237     {
 238         if ( m_result == wxID_OK )
 239             m_result = wxID_YES;
 240         else if ( m_result == wxID_CANCEL )
 241             m_result = wxID_NO;
 242         else if ( m_result == wxID_HELP )
 243             m_result = wxID_CANCEL;
 244     }
 245
 246     return m_result;
 247 }
 248