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 #include "wx/defs.h"
  24
  25 #ifdef __VMS
  26 #define XtDisplay XTDISPLAY
  27 #pragma message disable nosimpint
  28 #include <wx/vms_x_fix.h>
  29 #endif
  30 #include <X11/Xlib.h>
  31
  32 #include <Xm/Xm.h>
  33 #include <Xm/MessageB.h>
  34 #ifdef __VMS
  35 #pragma message enable nosimpint
  36 #endif
  37
  38 #include "wx/app.h"
  39 #include "wx/intl.h"
  40 #include "wx/msgdlg.h"
  41 #include "wx/motif/private.h"
  42 #include "wx/settings.h"
  43
  44 // ----------------------------------------------------------------------------
  45 // macros
  46 // ----------------------------------------------------------------------------
  47
  48     IMPLEMENT_CLASS(wxMessageDialog, wxDialog)
  49
  50 // ============================================================================
  51 // implementation
  52 // ============================================================================
  53
  54 // ----------------------------------------------------------------------------
  55 // the callbacks for message box buttons
  56 // ----------------------------------------------------------------------------
  57
  58 // the common part
  59 static void msgboxCallBack(Widget w, void* client_data, int id)
  60 {
  61     // close the dialog
  62     XtUnmanageChild(w);
  63
  64     wxMessageDialog *dlg = (wxMessageDialog *)client_data;
  65     dlg->SetResult(id);
  66 }
  67
  68 static void msgboxCallBackOk(Widget w,
  69                              void* client_data,
  70                              XmAnyCallbackStruct *WXUNUSED(call_data))
  71 {
  72     msgboxCallBack(w, client_data, wxID_OK);
  73 }
  74
  75 static void msgboxCallBackCancel(Widget w,
  76                                  void* client_data,
  77                                  XmAnyCallbackStruct *WXUNUSED(call_data))
  78 {
  79     msgboxCallBack(w, client_data, wxID_CANCEL);
  80 }
  81
  82 static void msgboxCallBackHelp(Widget w,
  83                                void* client_data,
  84                                XmAnyCallbackStruct *WXUNUSED(call_data))
  85 {
  86     msgboxCallBack(w, client_data, wxID_HELP);
  87 }
  88
  89 static void msgboxCallBackClose(Widget w,
  90                                 void* client_data,
  91                                 XmAnyCallbackStruct *WXUNUSED(call_data))
  92 {
  93     msgboxCallBack(w, client_data, wxID_CANCEL);
  94 }
  95
  96 // ----------------------------------------------------------------------------
  97 // wxMessageDialog
  98 // ----------------------------------------------------------------------------
  99
 100 wxMessageDialog::wxMessageDialog(wxWindow *parent,
 101                                  const wxString& message,
 102                                  const wxString& caption,
 103                                  long style,
 104                                  const wxPoint& WXUNUSED(pos))
 105 {
 106     m_caption = caption;
 107     m_message = message;
 108     m_parent = parent;
 109     SetMessageDialogStyle(style);
 110 }
 111
 112 extern "C"
 113 {
 114     typedef Widget (*DialogCreateFunction)(Widget, String, ArgList, Cardinal);
 115 }
 116
 117 int wxMessageDialog::ShowModal()
 118 {
 119     const long style = GetMessageDialogStyle();
 120
 121     DialogCreateFunction dialogCreateFunction;
 122     if ( style & wxYES_NO )
 123     {
 124         // if we have [Yes], it must be a question
 125         dialogCreateFunction = XmCreateQuestionDialog;
 126     }
 127     else if ( style & wxICON_STOP )
 128     {
 129         // error dialog is the one with error icon...
 130         dialogCreateFunction = XmCreateErrorDialog;
 131     }
 132     else if ( style & wxICON_EXCLAMATION )
 133     {
 134         // ...and the warning dialog too
 135         dialogCreateFunction = XmCreateWarningDialog;
 136     }
 137     else
 138     {
 139         // finally, use the info dialog by default
 140         dialogCreateFunction = XmCreateInformationDialog;
 141     }
 142
 143     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 144     if ( !wParent )
 145     {
 146         wxWindow *window = wxTheApp->GetTopWindow();
 147         if ( !window )
 148         {
 149             wxFAIL_MSG("can't show message box without parent window");
 150
 151             return wxID_CANCEL;
 152         }
 153
 154         wParent = GetWidget(window);
 155     }
 156
 157     // prepare the arg list
 158     Arg args[10];
 159     int ac = 0;
 160
 161     wxXmString text(m_message);
 162     wxXmString title(m_caption);
 163     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 164     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 165
 166     Display* dpy = XtDisplay(wParent);
 167
 168     wxComputeColours (dpy, & m_backgroundColour, (wxColour*) NULL);
 169
 170     XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 171     XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 172     XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 173     XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 174
 175     wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 176
 177 #if __WXMOTIF20__ && !__WXLESSTIF__
 178     XtSetArg(args[ac], XmNbuttonRenderTable, font.GetFontTypeC(dpy)); ac++;
 179     XtSetArg(args[ac], XmNlabelRenderTable, font.GetFontTypeC(dpy)); ac++;
 180     XtSetArg(args[ac], XmNtextRenderTable, font.GetFontTypeC(dpy)); ac++;
 181 #else
 182     XtSetArg(args[ac], XmNbuttonFontList, font.GetFontTypeC(dpy)); ac++;
 183     XtSetArg(args[ac], XmNlabelFontList, font.GetFontTypeC(dpy)); ac++;
 184     XtSetArg(args[ac], XmNtextFontList, font.GetFontTypeC(dpy)); ac++;
 185 #endif
 186
 187     // do create message box
 188
 189     Widget wMsgBox = (*dialogCreateFunction)(wParent, wxMOTIF_STR(""), args, ac);
 190
 191     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 192
 193     // get the buttons which we might either remove or rename
 194     // depending on the requested style
 195     //
 196     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 197     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 198     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 199
 200     if ( style & wxYES_NO )
 201     {
 202         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 203
 204         if ( style & wxCANCEL )
 205         {
 206             // use the cancel button for No and the help button for
 207             // Cancel  Yuk :-)  MB
 208             //
 209             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 210             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 211             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 212         }
 213         else
 214         {
 215             // no cancel button requested...
 216             // remove the help button and use cancel for no
 217             //
 218             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 219             XtUnmanageChild(wBtnHelp);
 220         }
 221     }
 222     else
 223     {
 224         // remove the help button and the cancel button (unless it was
 225         // requested)
 226         //
 227         XtUnmanageChild(wBtnHelp);
 228         if ( !(style & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 229     }
 230
 231     // set the callbacks for the message box buttons
 232     XtAddCallback(wMsgBox, XmNokCallback,
 233                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 234     XtAddCallback(wMsgBox, XmNcancelCallback,
 235                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 236     XtAddCallback(wMsgBox, XmNhelpCallback,
 237                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 238     XtAddCallback(wMsgBox, XmNunmapCallback,
 239                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 240
 241     // show it as a modal dialog
 242     XtManageChild(wMsgBox);
 243     XtAddGrab(wMsgBox, True, False);
 244
 245     // the m_result will be changed when message box goes away
 246     m_result = -1;
 247
 248     // local message loop
 249     XtAppContext context = XtWidgetToApplicationContext(wParent);
 250     XEvent event;
 251     while ( m_result == -1 )
 252     {
 253         XtAppNextEvent(context, &event);
 254         XtDispatchEvent(&event);
 255     }
 256
 257     // translate the result if necessary
 258     if ( style & wxYES_NO )
 259     {
 260         if ( m_result == wxID_OK )
 261             m_result = wxID_YES;
 262         else if ( m_result == wxID_CANCEL )
 263             m_result = wxID_NO;
 264         else if ( m_result == wxID_HELP )
 265             m_result = wxID_CANCEL;
 266     }
 267
 268     return m_result;
 269 }
 270