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 #pragma message disable nosimpint
  25 #include "wx/vms_x_fix.h"
  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/msgdlg.h"
  36
  37 #ifndef WX_PRECOMP
  38     #include "wx/intl.h"
  39     #include "wx/app.h"
  40     #include "wx/settings.h"
  41 #endif
  42
  43 #include "wx/modalhook.h"
  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     WX_HOOK_MODAL_DIALOG();
 110
 111     const long style = GetMessageDialogStyle();
 112
 113     DialogCreateFunction dialogCreateFunction;
 114     if ( style & wxYES_NO )
 115     {
 116         // if we have [Yes], it must be a question
 117         dialogCreateFunction = XmCreateQuestionDialog;
 118     }
 119     else if ( style & wxICON_STOP )
 120     {
 121         // error dialog is the one with error icon...
 122         dialogCreateFunction = XmCreateErrorDialog;
 123     }
 124     else if ( style & wxICON_EXCLAMATION )
 125     {
 126         // ...and the warning dialog too
 127         dialogCreateFunction = XmCreateWarningDialog;
 128     }
 129     else
 130     {
 131         // finally, use the info dialog by default
 132         dialogCreateFunction = XmCreateInformationDialog;
 133     }
 134
 135     Widget wParent = m_parent ? GetWidget(m_parent) : (Widget) 0;
 136     if ( !wParent )
 137     {
 138         wxWindow *window = wxTheApp->GetTopWindow();
 139         if ( !window )
 140         {
 141             wxFAIL_MSG("can't show message box without parent window");
 142
 143             return wxID_CANCEL;
 144         }
 145
 146         wParent = GetWidget(window);
 147     }
 148
 149     // prepare the arg list
 150     Arg args[10];
 151     int ac = 0;
 152
 153     wxXmString text(GetFullMessage());
 154     wxXmString title(m_caption);
 155     XtSetArg(args[ac], XmNmessageString, text()); ac++;
 156     XtSetArg(args[ac], XmNdialogTitle, title()); ac++;
 157
 158     Display* dpy = XtDisplay(wParent);
 159
 160     if (m_backgroundColour.IsOk())
 161     {
 162         wxComputeColours (dpy, & m_backgroundColour, NULL);
 163
 164         XtSetArg(args[ac], XmNbackground, g_itemColors[wxBACK_INDEX].pixel); ac++;
 165         XtSetArg(args[ac], XmNtopShadowColor, g_itemColors[wxTOPS_INDEX].pixel); ac++;
 166         XtSetArg(args[ac], XmNbottomShadowColor, g_itemColors[wxBOTS_INDEX].pixel); ac++;
 167         XtSetArg(args[ac], XmNforeground, g_itemColors[wxFORE_INDEX].pixel); ac++;
 168     }
 169
 170     wxFont font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 171
 172 #if __WXMOTIF20__ && !__WXLESSTIF__
 173     XtSetArg(args[ac], XmNbuttonRenderTable, font.GetFontTypeC(dpy)); ac++;
 174     XtSetArg(args[ac], XmNlabelRenderTable, font.GetFontTypeC(dpy)); ac++;
 175     XtSetArg(args[ac], XmNtextRenderTable, font.GetFontTypeC(dpy)); ac++;
 176 #else
 177     XtSetArg(args[ac], XmNbuttonFontList, font.GetFontTypeC(dpy)); ac++;
 178     XtSetArg(args[ac], XmNlabelFontList, font.GetFontTypeC(dpy)); ac++;
 179     XtSetArg(args[ac], XmNtextFontList, font.GetFontTypeC(dpy)); ac++;
 180 #endif
 181
 182     // do create message box
 183
 184     Widget wMsgBox = (*dialogCreateFunction)(wParent, wxMOTIF_STR(""), args, ac);
 185
 186     wxCHECK_MSG( wMsgBox, wxID_CANCEL, "msg box creation failed" );
 187
 188     // get the buttons which we might either remove or rename
 189     // depending on the requested style
 190     //
 191     Widget wBtnOk = XmMessageBoxGetChild(wMsgBox, XmDIALOG_OK_BUTTON);
 192     Widget wBtnHelp = XmMessageBoxGetChild(wMsgBox, XmDIALOG_HELP_BUTTON);
 193     Widget wBtnCancel = XmMessageBoxGetChild(wMsgBox, XmDIALOG_CANCEL_BUTTON);
 194
 195     if ( style & wxYES_NO )
 196     {
 197         wxXmString yes(_("Yes")), no(_("No")), cancel(_("Cancel"));
 198
 199         if ( style & wxCANCEL )
 200         {
 201             // use the cancel button for No and the help button for
 202             // Cancel  Yuk :-)  MB
 203             //
 204             XtVaSetValues(wBtnOk, XmNlabelString, yes(), NULL);
 205             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 206             XtVaSetValues(wBtnHelp, XmNlabelString, cancel(), NULL);
 207         }
 208         else
 209         {
 210             // no cancel button requested...
 211             // remove the help button and use cancel for no
 212             //
 213             XtVaSetValues(wBtnCancel, XmNlabelString, no(), NULL);
 214             XtUnmanageChild(wBtnHelp);
 215         }
 216     }
 217     else
 218     {
 219         // remove the help button and the cancel button (unless it was
 220         // requested)
 221         //
 222         XtUnmanageChild(wBtnHelp);
 223         if ( !(style & wxCANCEL ) ) XtUnmanageChild(wBtnCancel);
 224     }
 225
 226     // set the callbacks for the message box buttons
 227     XtAddCallback(wMsgBox, XmNokCallback,
 228                   (XtCallbackProc)msgboxCallBackOk, (XtPointer)this);
 229     XtAddCallback(wMsgBox, XmNcancelCallback,
 230                   (XtCallbackProc)msgboxCallBackCancel, (XtPointer)this);
 231     XtAddCallback(wMsgBox, XmNhelpCallback,
 232                   (XtCallbackProc)msgboxCallBackHelp, (XtPointer)this);
 233     XtAddCallback(wMsgBox, XmNunmapCallback,
 234                   (XtCallbackProc)msgboxCallBackClose, (XtPointer)this);
 235
 236     // show it as a modal dialog
 237     XtManageChild(wMsgBox);
 238     XtAddGrab(wMsgBox, True, False);
 239
 240     // the m_result will be changed when message box goes away
 241     m_result = -1;
 242
 243     // local message loop
 244     XtAppContext context = XtWidgetToApplicationContext(wParent);
 245     XEvent event;
 246     while ( m_result == -1 )
 247     {
 248         XtAppNextEvent(context, &event);
 249         XtDispatchEvent(&event);
 250     }
 251
 252     // translate the result if necessary
 253     if ( style & wxYES_NO )
 254     {
 255         if ( m_result == wxID_OK )
 256             m_result = wxID_YES;
 257         else if ( m_result == wxID_CANCEL )
 258             m_result = wxID_NO;
 259         else if ( m_result == wxID_HELP )
 260             m_result = wxID_CANCEL;
 261     }
 262
 263     return m_result;
 264 }