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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  17     #pragma implementation "msgdlg.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #include "wx/defs.h"
  28
  29 #ifdef __VMS
  30 #define XtDisplay XTDISPLAY
  31 #pragma message disable nosimpint
  32 #include <wx/vms_x_fix.h>
  33 #endif
  34 #include <X11/Xlib.h>
  35
  36 #include <Xm/Xm.h>
  37 #include <Xm/MessageB.h>
  38 #ifdef __VMS
  39 #pragma message enable nosimpint
  40 #endif
  41
  42 #include "wx/app.h"
  43 #include "wx/intl.h"
  44 #include "wx/msgdlg.h"
  45 #include "wx/motif/private.h"
  46 #include "wx/settings.h"
  47
  48 // ----------------------------------------------------------------------------
  49 // macros
  50 // ----------------------------------------------------------------------------
  51
  52     IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  53
  54 // ============================================================================
  55 // implementation
  56 // ============================================================================
  57
  58 // ----------------------------------------------------------------------------
  59 // the callbacks for message box buttons
  60 // ----------------------------------------------------------------------------
  61
  62 // the common part
  63 static void msgboxCallBack(Widget w, void* client_data, int id)
  64 {
  65     // close the dialog
  66     XtUnmanageChild(w);
  67
  68     wxMessageDialog *dlg = (wxMessageDialog *)client_data;
  69     dlg->SetResult(id);
  70 }
  71
  72 static void msgboxCallBackOk(Widget w,
  73                              void* client_data,
  74                              XmAnyCallbackStruct *WXUNUSED(call_data))
  75 {
  76     msgboxCallBack(w, client_data, wxID_OK);
  77 }
  78
  79 static void msgboxCallBackCancel(Widget w,
  80                                  void* client_data,
  81                                  XmAnyCallbackStruct *WXUNUSED(call_data))
  82 {
  83     msgboxCallBack(w, client_data, wxID_CANCEL);
  84 }
  85
  86 static void msgboxCallBackHelp(Widget w,
  87                                void* client_data,
  88                                XmAnyCallbackStruct *WXUNUSED(call_data))
  89 {
  90     msgboxCallBack(w, client_data, wxID_HELP);
  91 }
  92
  93 static void msgboxCallBackClose(Widget w,
  94                                 void* client_data,
  95                                 XmAnyCallbackStruct *WXUNUSED(call_data))
  96 {
  97     msgboxCallBack(w, client_data, wxID_CANCEL);
  98 }
  99
 100 // ----------------------------------------------------------------------------
 101 // wxMessageDialog
 102 // ----------------------------------------------------------------------------
 103
 104 wxMessageDialog::wxMessageDialog(wxWindow *parent,
 105                                  const wxString& message,
 106                                  const wxString& caption,
 107                                  long style,
 108                                  const wxPoint& WXUNUSED(pos))
 109 {
 110     m_caption = caption;
 111     m_message = message;
 112     m_parent = parent;
 113     SetMessageDialogStyle(style);
 114 }
 115
 116 int wxMessageDialog::ShowModal()
 117 {
 118     Widget (*dialogCreateFunction)(Widget, String, ArgList, Cardinal) = NULL;
 119     const long style = GetMessageDialogStyle();
 120
 121     if ( style & wxYES_NO )
 122     {
 123         // if we have [Yes], it must be a question
 124         dialogCreateFunction = XmCreateQuestionDialog;
 125     }
 126     else if ( style & wxICON_STOP )
 127     {
 128         // error dialog is the one with error icon...
 129         dialogCreateFunction = XmCreateErrorDialog;
 130     }
 131     else if ( style & wxICON_EXCLAMATION )
 132     {
 133         // ...and the warning dialog too
 134         dialogCreateFunction = XmCreateWarningDialog;
 135     }
 136     else
 137     {
 138         // finally, use the info dialog by default
 139         dialogCreateFunction = XmCreateInformationDialog;
 140     }
 141
 142     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 143     if ( !wParent )
 144     {
 145         wxWindow *window = wxTheApp->GetTopWindow();
 146         if ( !window )
 147         {
 148             wxFAIL_MSG("can't show message box without parent window");
 149
 150             return wxID_CANCEL;
 151         }
 152
 153         wParent = GetWidget(window);
 154     }
 155
 156     // prepare the arg list
 157     Arg args[10];
 158     int ac = 0;
 159
 160     wxXmString text(m_message);
 161     wxXmString title(m_caption);
 162     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 163     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 164
 165     Display* dpy = XtDisplay(wParent);
 166
 167     wxComputeColours (dpy, & m_backgroundColour, (wxColour*) NULL);
 168
 169     XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 170     XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 171     XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 172     XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 173
 174     wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 175
 176 #if __WXMOTIF20__ && !__WXLESSTIF__
 177     XtSetArg(args[ac], XmNbuttonRenderTable, font.GetFontTypeC(dpy)); ac++;
 178     XtSetArg(args[ac], XmNlabelRenderTable, font.GetFontTypeC(dpy)); ac++;
 179     XtSetArg(args[ac], XmNtextRenderTable, font.GetFontTypeC(dpy)); ac++;
 180 #else
 181     XtSetArg(args[ac], XmNbuttonFontList, font.GetFontTypeC(dpy)); ac++;
 182     XtSetArg(args[ac], XmNlabelFontList, font.GetFontTypeC(dpy)); ac++;
 183     XtSetArg(args[ac], XmNtextFontList, font.GetFontTypeC(dpy)); ac++;
 184 #endif
 185
 186     // do create message box
 187
 188     Widget wMsgBox = (*dialogCreateFunction)(wParent, "", args, ac);
 189
 190     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 191
 192     // get the buttons which we might either remove or rename
 193     // depending on the requested style
 194     //
 195     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 196     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 197     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 198
 199     if ( style & wxYES_NO )
 200     {
 201         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 202
 203         if ( style & wxCANCEL )
 204         {
 205             // use the cancel button for No and the help button for
 206             // Cancel  Yuk :-)  MB
 207             //
 208             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 209             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 210             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 211         }
 212         else
 213         {
 214             // no cancel button requested...
 215             // remove the help button and use cancel for no
 216             //
 217             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 218             XtUnmanageChild(wBtnHelp);
 219         }
 220     }
 221     else
 222     {
 223         // remove the help button and the cancel button (unless it was
 224         // requested)
 225         //
 226         XtUnmanageChild(wBtnHelp);
 227         if ( !(style & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 228     }
 229
 230     // set the callbacks for the message box buttons
 231     XtAddCallback(wMsgBox, XmNokCallback,
 232                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 233     XtAddCallback(wMsgBox, XmNcancelCallback,
 234                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 235     XtAddCallback(wMsgBox, XmNhelpCallback,
 236                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 237     XtAddCallback(wMsgBox, XmNunmapCallback,
 238                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 239
 240     // show it as a modal dialog
 241     XtManageChild(wMsgBox);
 242     XtAddGrab(wMsgBox, True, False);
 243
 244     // the m_result will be changed when message box goes away
 245     m_result = -1;
 246
 247     // local message loop
 248     XtAppContext context = XtWidgetToApplicationContext(wParent);
 249     XEvent event;
 250     while ( m_result == -1 )
 251     {
 252         XtAppNextEvent(context, &event);
 253         XtDispatchEvent(&event);
 254     }
 255
 256     // translate the result if necessary
 257     if ( style & wxYES_NO )
 258     {
 259         if ( m_result == wxID_OK )
 260             m_result = wxID_YES;
 261         else if ( m_result == wxID_CANCEL )
 262             m_result = wxID_NO;
 263         else if ( m_result == wxID_HELP )
 264             m_result = wxID_CANCEL;
 265     }
 266
 267     return m_result;
 268 }
 269