src/motif/msgdlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/motif/msgdlg.cpp
   3 // Purpose:     wxMessageDialog
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __VMS
  24 #define XtDisplay XTDISPLAY
  25 #pragma message disable nosimpint
  26 #include "wx/vms_x_fix.h"
  27 #endif
  28 #include <X11/Xlib.h>
  29
  30 #include <Xm/Xm.h>
  31 #include <Xm/MessageB.h>
  32 #ifdef __VMS
  33 #pragma message enable nosimpint
  34 #endif
  35
  36 #include "wx/msgdlg.h"
  37
  38 #ifndef WX_PRECOMP
  39     #include "wx/intl.h"
  40     #include "wx/app.h"
  41     #include "wx/settings.h"
  42 #endif
  43
  44 #include "wx/motif/private.h"
  45
  46 // ----------------------------------------------------------------------------
  47 // macros
  48 // ----------------------------------------------------------------------------
  49
  50     IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  51
  52 // ============================================================================
  53 // implementation
  54 // ============================================================================
  55
  56 // ----------------------------------------------------------------------------
  57 // the callbacks for message box buttons
  58 // ----------------------------------------------------------------------------
  59
  60 // the common part
  61 static void msgboxCallBack(Widget w, void* client_data, int id)
  62 {
  63     // close the dialog
  64     XtUnmanageChild(w);
  65
  66     wxMessageDialog *dlg = (wxMessageDialog *)client_data;
  67     dlg->SetResult(id);
  68 }
  69
  70 static void msgboxCallBackOk(Widget w,
  71                              void* client_data,
  72                              XmAnyCallbackStruct *WXUNUSED(call_data))
  73 {
  74     msgboxCallBack(w, client_data, wxID_OK);
  75 }
  76
  77 static void msgboxCallBackCancel(Widget w,
  78                                  void* client_data,
  79                                  XmAnyCallbackStruct *WXUNUSED(call_data))
  80 {
  81     msgboxCallBack(w, client_data, wxID_CANCEL);
  82 }
  83
  84 static void msgboxCallBackHelp(Widget w,
  85                                void* client_data,
  86                                XmAnyCallbackStruct *WXUNUSED(call_data))
  87 {
  88     msgboxCallBack(w, client_data, wxID_HELP);
  89 }
  90
  91 static void msgboxCallBackClose(Widget w,
  92                                 void* client_data,
  93                                 XmAnyCallbackStruct *WXUNUSED(call_data))
  94 {
  95     msgboxCallBack(w, client_data, wxID_CANCEL);
  96 }
  97
  98 // ----------------------------------------------------------------------------
  99 // wxMessageDialog
 100 // ----------------------------------------------------------------------------
 101
 102 extern "C"
 103 {
 104     typedef Widget (*DialogCreateFunction)(Widget, String, ArgList, Cardinal);
 105 }
 106
 107 int wxMessageDialog::ShowModal()
 108 {
 109     const long style = GetMessageDialogStyle();
 110
 111     DialogCreateFunction dialogCreateFunction;
 112     if ( style & wxYES_NO )
 113     {
 114         // if we have [Yes], it must be a question
 115         dialogCreateFunction = XmCreateQuestionDialog;
 116     }
 117     else if ( style & wxICON_STOP )
 118     {
 119         // error dialog is the one with error icon...
 120         dialogCreateFunction = XmCreateErrorDialog;
 121     }
 122     else if ( style & wxICON_EXCLAMATION )
 123     {
 124         // ...and the warning dialog too
 125         dialogCreateFunction = XmCreateWarningDialog;
 126     }
 127     else
 128     {
 129         // finally, use the info dialog by default
 130         dialogCreateFunction = XmCreateInformationDialog;
 131     }
 132
 133     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 134     if ( !wParent )
 135     {
 136         wxWindow *window = wxTheApp->GetTopWindow();
 137         if ( !window )
 138         {
 139             wxFAIL_MSG("can't show message box without parent window");
 140
 141             return wxID_CANCEL;
 142         }
 143
 144         wParent = GetWidget(window);
 145     }
 146
 147     // prepare the arg list
 148     Arg args[10];
 149     int ac = 0;
 150
 151     wxXmString text(GetFullMessage());
 152     wxXmString title(m_caption);
 153     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 154     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 155
 156     Display* dpy = XtDisplay(wParent);
 157
 158     if (m_backgroundColour.Ok())
 159     {
 160         wxComputeColours (dpy, & m_backgroundColour, (wxColour*) NULL);
 161
 162         XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 163         XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 164         XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 165         XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 166     }
 167
 168     wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 169
 170 #if __WXMOTIF20__ && !__WXLESSTIF__
 171     XtSetArg(args[ac], XmNbuttonRenderTable, font.GetFontTypeC(dpy)); ac++;
 172     XtSetArg(args[ac], XmNlabelRenderTable, font.GetFontTypeC(dpy)); ac++;
 173     XtSetArg(args[ac], XmNtextRenderTable, font.GetFontTypeC(dpy)); ac++;
 174 #else
 175     XtSetArg(args[ac], XmNbuttonFontList, font.GetFontTypeC(dpy)); ac++;
 176     XtSetArg(args[ac], XmNlabelFontList, font.GetFontTypeC(dpy)); ac++;
 177     XtSetArg(args[ac], XmNtextFontList, font.GetFontTypeC(dpy)); ac++;
 178 #endif
 179
 180     // do create message box
 181
 182     Widget wMsgBox = (*dialogCreateFunction)(wParent, wxMOTIF_STR(""), args, ac);
 183
 184     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 185
 186     // get the buttons which we might either remove or rename
 187     // depending on the requested style
 188     //
 189     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 190     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 191     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 192
 193     if ( style & wxYES_NO )
 194     {
 195         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 196
 197         if ( style & wxCANCEL )
 198         {
 199             // use the cancel button for No and the help button for
 200             // Cancel  Yuk :-)  MB
 201             //
 202             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 203             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 204             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 205         }
 206         else
 207         {
 208             // no cancel button requested...
 209             // remove the help button and use cancel for no
 210             //
 211             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 212             XtUnmanageChild(wBtnHelp);
 213         }
 214     }
 215     else
 216     {
 217         // remove the help button and the cancel button (unless it was
 218         // requested)
 219         //
 220         XtUnmanageChild(wBtnHelp);
 221         if ( !(style & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 222     }
 223
 224     // set the callbacks for the message box buttons
 225     XtAddCallback(wMsgBox, XmNokCallback,
 226                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 227     XtAddCallback(wMsgBox, XmNcancelCallback,
 228                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 229     XtAddCallback(wMsgBox, XmNhelpCallback,
 230                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 231     XtAddCallback(wMsgBox, XmNunmapCallback,
 232                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 233
 234     // show it as a modal dialog
 235     XtManageChild(wMsgBox);
 236     XtAddGrab(wMsgBox, True, False);
 237
 238     // the m_result will be changed when message box goes away
 239     m_result = -1;
 240
 241     // local message loop
 242     XtAppContext context = XtWidgetToApplicationContext(wParent);
 243     XEvent event;
 244     while ( m_result == -1 )
 245     {
 246         XtAppNextEvent(context, &event);
 247         XtDispatchEvent(&event);
 248     }
 249
 250     // translate the result if necessary
 251     if ( style & wxYES_NO )
 252     {
 253         if ( m_result == wxID_OK )
 254             m_result = wxID_YES;
 255         else if ( m_result == wxID_CANCEL )
 256             m_result = wxID_NO;
 257         else if ( m_result == wxID_HELP )
 258             m_result = wxID_CANCEL;
 259     }
 260
 261     return m_result;
 262 }