src/gtk/aboutdlg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/aboutdlg.cpp
   3 // Purpose:     native GTK+ wxAboutBox() implementation
   4 // Author:      Vadim Zeitlin
   5 // Created:     2006-10-08
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #if wxUSE_ABOUTDLG && defined(__WXGTK26__)
  23
  24 #ifndef WX_PRECOMP
  25     #include "wx/utils.h"       // for wxLaunchDefaultBrowser()
  26 #endif //WX_PRECOMP
  27
  28 #include "wx/aboutdlg.h"
  29 #include "wx/generic/aboutdlgg.h"
  30
  31 #include "wx/gtk/private.h"
  32
  33 // ----------------------------------------------------------------------------
  34 // GtkArray: temporary array of GTK strings
  35 // ----------------------------------------------------------------------------
  36
  37 namespace
  38 {
  39
  40 class GtkArray
  41 {
  42 public:
  43     // Create empty GtkArray
  44     GtkArray() : m_strings(0), m_count(0)
  45     {
  46     }
  47
  48     // Create GtkArray from wxArrayString. Note that the created object is
  49     // only valid as long as 'a' is!
  50     GtkArray(const wxArrayString& a)
  51     {
  52         m_count = a.size();
  53         m_strings = new const gchar *[m_count + 1];
  54
  55         for ( size_t n = 0; n < m_count; n++ )
  56         {
  57 #if wxUSE_UNICODE_UTF8
  58             m_strings[n] = a[n].utf8_str();
  59 #else
  60             m_strings[n] = wxGTK_CONV_SYS(a[n]).release();
  61 #endif
  62         }
  63
  64         // array must be NULL-terminated
  65         m_strings[m_count] = NULL;
  66     }
  67
  68     operator const gchar **() const { return m_strings; }
  69
  70     ~GtkArray()
  71     {
  72 #if !wxUSE_UNICODE_UTF8
  73         for ( size_t n = 0; n < m_count; n++ )
  74             free(wx_const_cast(gchar *, m_strings[n]));
  75 #endif
  76
  77         delete [] m_strings;
  78     }
  79
  80 private:
  81     const gchar **m_strings;
  82     size_t m_count;
  83
  84     DECLARE_NO_COPY_CLASS(GtkArray)
  85 };
  86
  87 } // anonymous namespace
  88
  89 // ============================================================================
  90 // implementation
  91 // ============================================================================
  92
  93 // GTK+ about dialog is modeless, keep track of it in this variable
  94 static GtkAboutDialog *gs_aboutDialog = NULL;
  95
  96 extern "C" void
  97 wxGtkAboutDialogOnClose(GtkAboutDialog *about)
  98 {
  99     gtk_widget_destroy(GTK_WIDGET(about));
 100     if ( about == gs_aboutDialog )
 101         gs_aboutDialog = NULL;
 102 }
 103
 104 extern "C" void
 105 wxGtkAboutDialogOnLink(GtkAboutDialog * WXUNUSED(about),
 106                        const gchar *link,
 107                        gpointer WXUNUSED(data))
 108 {
 109     wxLaunchDefaultBrowser(wxGTK_CONV_BACK_SYS(link));
 110 }
 111
 112 void wxAboutBox(const wxAboutDialogInfo& info)
 113 {
 114     if ( !gtk_check_version(2,6,0) )
 115     {
 116         // don't create another dialog if one is already present
 117         if ( !gs_aboutDialog )
 118             gs_aboutDialog = GTK_ABOUT_DIALOG(gtk_about_dialog_new());
 119
 120         GtkAboutDialog * const dlg = gs_aboutDialog;
 121         gtk_about_dialog_set_name(dlg, wxGTK_CONV_SYS(info.GetName()));
 122         if ( info.HasVersion() )
 123             gtk_about_dialog_set_version(dlg, wxGTK_CONV_SYS(info.GetVersion()));
 124         else
 125             gtk_about_dialog_set_version(dlg, NULL);
 126         if ( info.HasCopyright() )
 127             gtk_about_dialog_set_copyright(dlg, wxGTK_CONV_SYS(info.GetCopyright()));
 128         else
 129             gtk_about_dialog_set_copyright(dlg, NULL);
 130         if ( info.HasDescription() )
 131             gtk_about_dialog_set_comments(dlg, wxGTK_CONV_SYS(info.GetDescription()));
 132         else
 133             gtk_about_dialog_set_comments(dlg, NULL);
 134         if ( info.HasLicence() )
 135             gtk_about_dialog_set_license(dlg, wxGTK_CONV_SYS(info.GetLicence()));
 136         else
 137             gtk_about_dialog_set_license(dlg, NULL);
 138
 139         wxIcon icon = info.GetIcon();
 140         if ( icon.Ok() )
 141             gtk_about_dialog_set_logo(dlg, info.GetIcon().GetPixbuf());
 142
 143         if ( info.HasWebSite() )
 144         {
 145             // NB: must be called before gtk_about_dialog_set_website() as
 146             //     otherwise it has no effect (although GTK+ docs don't mention
 147             //     this...)
 148             gtk_about_dialog_set_url_hook(wxGtkAboutDialogOnLink, NULL, NULL);
 149
 150             gtk_about_dialog_set_website(dlg, wxGTK_CONV_SYS(info.GetWebSiteURL()));
 151             gtk_about_dialog_set_website_label
 152             (
 153                 dlg,
 154                 wxGTK_CONV_SYS(info.GetWebSiteDescription())
 155             );
 156         }
 157         else
 158         {
 159             gtk_about_dialog_set_website(dlg, NULL);
 160             gtk_about_dialog_set_website_label(dlg, NULL);
 161             gtk_about_dialog_set_url_hook(NULL, NULL, NULL);
 162         }
 163
 164         if ( info.HasDevelopers() )
 165             gtk_about_dialog_set_authors(dlg, GtkArray(info.GetDevelopers()));
 166         else
 167             gtk_about_dialog_set_authors(dlg, GtkArray());
 168         if ( info.HasDocWriters() )
 169             gtk_about_dialog_set_documenters(dlg, GtkArray(info.GetDocWriters()));
 170         else
 171             gtk_about_dialog_set_documenters(dlg, GtkArray());
 172         if ( info.HasArtists() )
 173             gtk_about_dialog_set_artists(dlg, GtkArray(info.GetArtists()));
 174         else
 175             gtk_about_dialog_set_artists(dlg, GtkArray());
 176
 177         wxString transCredits;
 178         if ( info.HasTranslators() )
 179         {
 180             const wxArrayString& translators = info.GetTranslators();
 181             const size_t count = translators.size();
 182             for ( size_t n = 0; n < count; n++ )
 183             {
 184                 transCredits << translators[n] << _T('\n');
 185             }
 186         }
 187         else // no translators explicitely specified
 188         {
 189             // maybe we have translator credits in the message catalog?
 190             wxString translator = _("translator-credits");
 191
 192             // gtk_about_dialog_set_translator_credits() is smart enough to
 193             // detect if "translator-credits" is untranslated and hide the
 194             // translators tab in that case, however it will still show the
 195             // "credits" button, (at least GTK 2.10.6) even if there are no
 196             // credits informations at all, so we still need to do the check
 197             // ourselves
 198             if ( translator != wxT("translator-credits") ) // untranslated!
 199                 transCredits = translator;
 200         }
 201
 202         if ( !transCredits.empty() )
 203             gtk_about_dialog_set_translator_credits(dlg, wxGTK_CONV_SYS(transCredits));
 204         else
 205             gtk_about_dialog_set_translator_credits(dlg, NULL);
 206
 207         g_signal_connect(dlg, "response",
 208                             G_CALLBACK(wxGtkAboutDialogOnClose), NULL);
 209
 210         gtk_window_present(GTK_WINDOW(dlg));
 211         return;
 212     }
 213
 214     // native about dialog not available, fall back to the generic one
 215     wxGenericAboutBox(info);
 216 }
 217
 218 #endif // wxUSE_ABOUTDLG && GTK+ 2.6+