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 wxMessageDialog::wxMessageDialog(wxWindow *parent,
 103                                  const wxString& message,
 104                                  const wxString& caption,
 105                                  long style,
 106                                  const wxPoint& WXUNUSED(pos))
 107 {
 108     m_caption = caption;
 109     m_message = message;
 110     m_parent = parent;
 111     SetMessageDialogStyle(style);
 112 }
 113
 114 extern "C"
 115 {
 116     typedef Widget (*DialogCreateFunction)(Widget, String, ArgList, Cardinal);
 117 }
 118
 119 int wxMessageDialog::ShowModal()
 120 {
 121     const long style = GetMessageDialogStyle();
 122
 123     DialogCreateFunction dialogCreateFunction;
 124     if ( style & wxYES_NO )
 125     {
 126         // if we have [Yes], it must be a question
 127         dialogCreateFunction = XmCreateQuestionDialog;
 128     }
 129     else if ( style & wxICON_STOP )
 130     {
 131         // error dialog is the one with error icon...
 132         dialogCreateFunction = XmCreateErrorDialog;
 133     }
 134     else if ( style & wxICON_EXCLAMATION )
 135     {
 136         // ...and the warning dialog too
 137         dialogCreateFunction = XmCreateWarningDialog;
 138     }
 139     else
 140     {
 141         // finally, use the info dialog by default
 142         dialogCreateFunction = XmCreateInformationDialog;
 143     }
 144
 145     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 146     if ( !wParent )
 147     {
 148         wxWindow *window = wxTheApp->GetTopWindow();
 149         if ( !window )
 150         {
 151             wxFAIL_MSG("can't show message box without parent window");
 152
 153             return wxID_CANCEL;
 154         }
 155
 156         wParent = GetWidget(window);
 157     }
 158
 159     // prepare the arg list
 160     Arg args[10];
 161     int ac = 0;
 162
 163     wxXmString text(m_message);
 164     wxXmString title(m_caption);
 165     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 166     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 167
 168     Display* dpy = XtDisplay(wParent);
 169
 170     wxComputeColours (dpy, & m_backgroundColour, (wxColour*) NULL);
 171
 172     XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 173     XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 174     XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 175     XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 176
 177     wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 178
 179 #if __WXMOTIF20__ && !__WXLESSTIF__
 180     XtSetArg(args[ac], XmNbuttonRenderTable, font.GetFontTypeC(dpy)); ac++;
 181     XtSetArg(args[ac], XmNlabelRenderTable, font.GetFontTypeC(dpy)); ac++;
 182     XtSetArg(args[ac], XmNtextRenderTable, font.GetFontTypeC(dpy)); ac++;
 183 #else
 184     XtSetArg(args[ac], XmNbuttonFontList, font.GetFontTypeC(dpy)); ac++;
 185     XtSetArg(args[ac], XmNlabelFontList, font.GetFontTypeC(dpy)); ac++;
 186     XtSetArg(args[ac], XmNtextFontList, font.GetFontTypeC(dpy)); ac++;
 187 #endif
 188
 189     // do create message box
 190
 191     Widget wMsgBox = (*dialogCreateFunction)(wParent, wxMOTIF_STR(""), args, ac);
 192
 193     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 194
 195     // get the buttons which we might either remove or rename
 196     // depending on the requested style
 197     //
 198     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 199     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 200     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 201
 202     if ( style & wxYES_NO )
 203     {
 204         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 205
 206         if ( style & wxCANCEL )
 207         {
 208             // use the cancel button for No and the help button for
 209             // Cancel  Yuk :-)  MB
 210             //
 211             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 212             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 213             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 214         }
 215         else
 216         {
 217             // no cancel button requested...
 218             // remove the help button and use cancel for no
 219             //
 220             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 221             XtUnmanageChild(wBtnHelp);
 222         }
 223     }
 224     else
 225     {
 226         // remove the help button and the cancel button (unless it was
 227         // requested)
 228         //
 229         XtUnmanageChild(wBtnHelp);
 230         if ( !(style & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 231     }
 232
 233     // set the callbacks for the message box buttons
 234     XtAddCallback(wMsgBox, XmNokCallback,
 235                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 236     XtAddCallback(wMsgBox, XmNcancelCallback,
 237                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 238     XtAddCallback(wMsgBox, XmNhelpCallback,
 239                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 240     XtAddCallback(wMsgBox, XmNunmapCallback,
 241                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 242
 243     // show it as a modal dialog
 244     XtManageChild(wMsgBox);
 245     XtAddGrab(wMsgBox, True, False);
 246
 247     // the m_result will be changed when message box goes away
 248     m_result = -1;
 249
 250     // local message loop
 251     XtAppContext context = XtWidgetToApplicationContext(wParent);
 252     XEvent event;
 253     while ( m_result == -1 )
 254     {
 255         XtAppNextEvent(context, &event);
 256         XtDispatchEvent(&event);
 257     }
 258
 259     // translate the result if necessary
 260     if ( style & wxYES_NO )
 261     {
 262         if ( m_result == wxID_OK )
 263             m_result = wxID_YES;
 264         else if ( m_result == wxID_CANCEL )
 265             m_result = wxID_NO;
 266         else if ( m_result == wxID_HELP )
 267             m_result = wxID_CANCEL;
 268     }
 269
 270     return m_result;
 271 }