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