/////////////////////////////////////////////////////////////////////////////
-// Name: utils.cpp
+// Name: src/gtk/utilsgtk.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
#include "wx/utils.h"
-#include "wx/string.h"
-#include "wx/intl.h"
-#include "wx/log.h"
+#ifndef WX_PRECOMP
+ #include "wx/string.h"
+ #include "wx/intl.h"
+ #include "wx/log.h"
+#endif
+#include "wx/apptrait.h"
#include "wx/process.h"
-
+#include "wx/sysopt.h"
#include "wx/unix/execute.h"
+#include "wx/gtk/private/timer.h"
+#include "wx/evtloop.h"
+
+#ifdef __WXDEBUG__
+ #include "wx/gtk/assertdlg_gtk.h"
+ #if wxUSE_STACKWALKER
+ #include "wx/stackwalk.h"
+ #endif // wxUSE_STACKWALKER
+#endif // __WXDEBUG__
+
#include <stdarg.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
+#include <sys/wait.h> // for WNOHANG
#include <unistd.h>
#include "glib.h"
#include "gdk/gdk.h"
#include "gtk/gtk.h"
-#include "gtk/gtkfeatures.h"
#include "gdk/gdkx.h"
#ifdef HAVE_X11_XKBLIB_H
- #ifdef __HPUX__
- /* under HP-UX XKBlib.h defines structures with field named "explicit" -
- * which is, of course, an error for a C++ compiler */
+ /* under HP-UX and Solaris 2.6, at least, XKBlib.h defines structures with
+ * field named "explicit" - which is, of course, an error for a C++
+ * compiler. To be on the safe side, just redefine it everywhere. */
#define explicit __wx_explicit
- #endif
-
- #include "X11/XKBlib.h"
-
- #ifdef __HPUX__
+
+ #include "X11/XKBlib.h"
+
#undef explicit
- #endif // __HPUX__
#endif // HAVE_X11_XKBLIB_H
-// ----------------------------------------------------------------------------
+
+#if wxUSE_DETECT_SM
+ #include "X11/Xlib.h"
+ #include "X11/SM/SMlib.h"
+#endif
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern GtkWidget *wxGetRootWindow();
+
+//----------------------------------------------------------------------------
// misc.
-// ----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+#ifndef __EMX__
+// on OS/2, we use the wxBell from wxBase library
void wxBell()
{
gdk_beep();
}
+#endif
/* Don't synthesize KeyUp events holding down a key and producing
KeyDown events with autorepeat. */
{
Bool result;
XkbSetDetectableAutoRepeat( GDK_DISPLAY(), flag, &result );
- return result; /* TRUE if keyboard hardware supports this mode */
+ return result; /* true if keyboard hardware supports this mode */
}
#else
bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
{
- return FALSE;
+ return false;
}
#endif
// display characterstics
// ----------------------------------------------------------------------------
+void *wxGetDisplay()
+{
+ return GDK_DISPLAY();
+}
+
void wxDisplaySize( int *width, int *height )
{
if (width) *width = gdk_screen_width();
if (height) *height = gdk_screen_height();
}
+void wxDisplaySizeMM( int *width, int *height )
+{
+ if (width) *width = gdk_screen_width_mm();
+ if (height) *height = gdk_screen_height_mm();
+}
+
void wxGetMousePosition( int* x, int* y )
{
gdk_window_get_pointer( (GdkWindow*) NULL, x, y, (GdkModifierType*) NULL );
bool wxColourDisplay()
{
- return TRUE;
+ return true;
}
int wxDisplayDepth()
{
- return gdk_window_get_visual( (GdkWindow*) &gdk_root_parent )->depth;
+ return gdk_drawable_get_visual( wxGetRootWindow()->window )->depth;
+}
+
+wxWindow* wxFindWindowAtPoint(const wxPoint& pt)
+{
+ return wxGenericFindWindowAtPoint(pt);
+}
+
+#if !wxUSE_UNICODE
+
+WXDLLIMPEXP_CORE wxCharBuffer
+wxConvertToGTK(const wxString& s, wxFontEncoding enc)
+{
+ wxWCharBuffer wbuf;
+ if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT )
+ {
+ wbuf = wxConvUI->cMB2WC(s.c_str());
+ }
+ else // another encoding, use generic conversion class
+ {
+ wbuf = wxCSConv(enc).cMB2WC(s.c_str());
+ }
+
+ if ( !wbuf && !s.empty() )
+ {
+ // conversion failed, but we still want to show something to the user
+ // even if it's going to be wrong it is better than nothing
+ //
+ // we choose ISO8859-1 here arbitrarily, it's just the most common
+ // encoding probably and, also importantly here, conversion from it
+ // never fails as it's done internally by wxCSConv
+ wbuf = wxCSConv(wxFONTENCODING_ISO8859_1).cMB2WC(s.c_str());
+ }
+
+ return wxConvUTF8.cWC2MB(wbuf);
+}
+
+WXDLLIMPEXP_CORE wxCharBuffer
+wxConvertFromGTK(const wxString& s, wxFontEncoding enc)
+{
+ // this conversion should never fail as GTK+ always uses UTF-8 internally
+ // so there are no complications here
+ const wxWCharBuffer wbuf(wxConvUTF8.cMB2WC(s.c_str()));
+ if ( enc == wxFONTENCODING_SYSTEM )
+ return wxConvUI->cWC2MB(wbuf);
+
+ return wxCSConv(enc).cWC2MB(wbuf);
}
-int wxGetOsVersion(int *majorVsn, int *minorVsn)
+#endif // !wxUSE_UNICODE
+
+// Returns NULL if version is certainly greater or equal than major.minor.micro
+// Returns string describing the error if version is lower than
+// major.minor.micro OR it cannot be determined and one should not rely on the
+// availability of pango version major.minor.micro, nor the non-availability
+const gchar *wx_pango_version_check (int major, int minor, int micro)
{
- if (majorVsn) *majorVsn = GTK_MAJOR_VERSION;
- if (minorVsn) *minorVsn = GTK_MINOR_VERSION;
+#ifdef PANGO_VERSION_MAJOR
+ if (!gtk_check_version (2,11,0))
+ {
+ // GTK+ 2.11 requires Pango >= 1.15.3 and pango_version_check
+ // was added in Pango 1.15.2 thus we know for sure the pango lib we're
+ // using has the pango_version_check function:
+ return pango_version_check (major, minor, micro);
+ }
+
+ return "can't check";
+#else // !PANGO_VERSION_MAJOR
+ wxUnusedVar(major);
+ wxUnusedVar(minor);
+ wxUnusedVar(micro);
- return wxGTK;
+ return "too old headers";
+#endif
}
+
// ----------------------------------------------------------------------------
// subprocess routines
// ----------------------------------------------------------------------------
-static void GTK_EndProcessDetector(gpointer data, gint source,
- GdkInputCondition WXUNUSED(condition) )
+extern "C" {
+static
+void GTK_EndProcessDetector(gpointer data, gint source,
+ GdkInputCondition WXUNUSED(condition) )
{
- wxEndProcessData *proc_data = (wxEndProcessData *)data;
+ wxEndProcessData *proc_data = (wxEndProcessData *)data;
+
+ // has the process really terminated? unfortunately GDK (or GLib) seem to
+ // generate G_IO_HUP notification even when it simply tries to read from a
+ // closed fd and hasn't terminated at all
+ int pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
+ int status = 0;
+ int rc = waitpid(pid, &status, WNOHANG);
+
+ if ( rc == 0 )
+ {
+ // This can only happen if the child application closes our dummy
+ // pipe that is used to monitor its lifetime; in that case, our
+ // best bet is to pretend the process did terminate, because
+ // otherwise wxExecute() would hang indefinitely
+ // (OnExceptionWaiting() won't be called again, the descriptor
+ // is closed now).
+ wxLogDebug("Child process (PID %i) still alive, even though notification was received that it terminated.", pid);
+ }
+ else if ( rc == -1 )
+ {
+ // As above, if waitpid() fails, the best we can do is to log the
+ // error and pretend the child terminated:
+ wxLogSysError(_("Failed to check child process' status"));
+ }
+
+ // set exit code to -1 if something bad happened
+ proc_data->exitcode = (rc > 0 && WIFEXITED(status))
+ ? WEXITSTATUS(status)
+ : -1;
+
+ // child exited, end waiting
+ close(source);
- wxHandleProcessTermination(proc_data);
+ // don't call us again!
+ gdk_input_remove(proc_data->tag);
- close(source);
- gdk_input_remove(proc_data->tag);
+ wxHandleProcessTermination(proc_data);
+}
}
int wxAddProcessCallback(wxEndProcessData *proc_data, int fd)
return tag;
}
+
+
+// ----------------------------------------------------------------------------
+// wxPlatformInfo-related
+// ----------------------------------------------------------------------------
+
+wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const
+{
+ if ( verMaj )
+ *verMaj = gtk_major_version;
+ if ( verMin )
+ *verMin = gtk_minor_version;
+
+ return wxPORT_GTK;
+}
+
+#if wxUSE_TIMER
+
+wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
+{
+ return new wxGTKTimerImpl(timer);
+}
+
+#endif // wxUSE_TIMER
+
+#if wxUSE_DETECT_SM
+static wxString GetSM()
+{
+ class Dpy
+ {
+ public:
+ Dpy() { m_dpy = XOpenDisplay(NULL); }
+ ~Dpy() { if ( m_dpy ) XCloseDisplay(m_dpy); }
+
+ operator Display *() const { return m_dpy; }
+ private:
+ Display *m_dpy;
+ } dpy;
+
+ if ( !dpy )
+ return wxEmptyString;
+
+ char smerr[256];
+ char *client_id;
+ SmcConn smc_conn = SmcOpenConnection(NULL, NULL,
+ 999, 999,
+ 0 /* mask */, NULL /* callbacks */,
+ NULL, &client_id,
+ WXSIZEOF(smerr), smerr);
+
+ if ( !smc_conn )
+ {
+ wxLogWarning(_("Failed to connect to session manager: %s"), smerr);
+ return wxEmptyString;
+ }
+
+ char *vendor = SmcVendor(smc_conn);
+ wxString ret = wxString::FromAscii( vendor );
+ free(vendor);
+
+ SmcCloseConnection(smc_conn, 0, NULL);
+ free(client_id);
+
+ return ret;
+}
+#endif // wxUSE_DETECT_SM
+
+
+//-----------------------------------------------------------------------------
+// wxGUIAppTraits
+//-----------------------------------------------------------------------------
+
+wxEventLoopBase *wxGUIAppTraits::CreateEventLoop()
+{
+ return new wxEventLoop();
+}
+
+
+#if wxUSE_INTL
+void wxGUIAppTraits::SetLocale()
+{
+ gtk_set_locale();
+ wxUpdateLocaleIsUtf8();
+}
+#endif
+
+#ifdef __WXDEBUG__
+
+#if wxUSE_STACKWALKER
+
+// private helper class
+class StackDump : public wxStackWalker
+{
+public:
+ StackDump(GtkAssertDialog *dlg) { m_dlg=dlg; }
+
+protected:
+ virtual void OnStackFrame(const wxStackFrame& frame)
+ {
+ wxString fncname = frame.GetName();
+ wxString fncargs = fncname;
+
+ size_t n = fncname.find(wxT('('));
+ if (n != wxString::npos)
+ {
+ // remove arguments from function name
+ fncname.erase(n);
+
+ // remove function name and brackets from arguments
+ fncargs = fncargs.substr(n+1, fncargs.length()-n-2);
+ }
+ else
+ fncargs = wxEmptyString;
+
+ // append this stack frame's info in the dialog
+ if (!frame.GetFileName().empty() || !fncname.empty())
+ gtk_assert_dialog_append_stack_frame(m_dlg,
+ fncname.mb_str(),
+ fncargs.mb_str(),
+ frame.GetFileName().mb_str(),
+ frame.GetLine());
+ }
+
+private:
+ GtkAssertDialog *m_dlg;
+};
+
+// the callback functions must be extern "C" to comply with GTK+ declarations
+extern "C"
+{
+ void get_stackframe_callback(StackDump *dump)
+ {
+ // skip over frames up to including wxOnAssert()
+ dump->ProcessFrames(3);
+ }
+}
+
+#endif // wxUSE_STACKWALKER
+
+bool wxGUIAppTraits::ShowAssertDialog(const wxString& msg)
+{
+ // under GTK2 we prefer to use a dialog widget written using directly GTK+;
+ // in fact we cannot use a dialog written using wxWidgets: it would need
+ // the wxWidgets idle processing to work correctly!
+ GtkWidget *dialog = gtk_assert_dialog_new();
+ gtk_assert_dialog_set_message(GTK_ASSERT_DIALOG(dialog), msg.mb_str());
+
+#if wxUSE_STACKWALKER
+ // don't show more than maxLines or we could get a dialog too tall to be
+ // shown on screen: 20 should be ok everywhere as even with 15 pixel high
+ // characters it is still only 300 pixels...
+ static const int maxLines = 20;
+
+ // save current stack frame...
+ StackDump dump(GTK_ASSERT_DIALOG(dialog));
+ dump.SaveStack(maxLines);
+
+ // ...but process it only if the user needs it
+ gtk_assert_dialog_set_backtrace_callback(GTK_ASSERT_DIALOG(dialog),
+ (GtkAssertDialogStackFrameCallback)get_stackframe_callback,
+ &dump);
+#endif // wxUSE_STACKWALKER
+
+ gint result = gtk_dialog_run(GTK_DIALOG (dialog));
+ bool returnCode = false;
+ switch (result)
+ {
+ case GTK_ASSERT_DIALOG_STOP:
+ wxTrap();
+ break;
+ case GTK_ASSERT_DIALOG_CONTINUE:
+ // nothing to do
+ break;
+ case GTK_ASSERT_DIALOG_CONTINUE_SUPPRESSING:
+ // no more asserts
+ returnCode = true;
+ break;
+
+ default:
+ wxFAIL_MSG( _T("unexpected return code from GtkAssertDialog") );
+ }
+
+ gtk_widget_destroy(dialog);
+ return returnCode;
+}
+
+#endif // __WXDEBUG__
+
+wxString wxGUIAppTraits::GetDesktopEnvironment() const
+{
+ wxString de = wxSystemOptions::GetOption(_T("gtk.desktop"));
+#if wxUSE_DETECT_SM
+ if ( de.empty() )
+ {
+ static const wxString s_SM = GetSM();
+
+ if (s_SM == wxT("GnomeSM"))
+ de = wxT("GNOME");
+ else if (s_SM == wxT("KDE"))
+ de = wxT("KDE");
+ }
+#endif // wxUSE_DETECT_SM
+
+ return de;
+}
+
+#ifdef __WXGTK26__
+
+// see the hack below in wxCmdLineParser::GetUsageString().
+// TODO: replace this hack with a g_option_group_get_entries()
+// call as soon as such function exists
+struct _GOptionGroup
+{
+ gchar *name;
+ gchar *description;
+ gchar *help_description;
+
+ GDestroyNotify destroy_notify;
+ gpointer user_data;
+
+ GTranslateFunc translate_func;
+ GDestroyNotify translate_notify;
+ gpointer translate_data;
+
+ GOptionEntry *entries;
+ gint n_entries;
+
+ GOptionParseFunc pre_parse_func;
+ GOptionParseFunc post_parse_func;
+ GOptionErrorFunc error_func;
+};
+
+wxString wxGetNameFromGtkOptionEntry(const GOptionEntry *opt)
+{
+ wxString ret;
+
+ if (opt->short_name)
+ ret << _T("-") << opt->short_name;
+ if (opt->long_name)
+ {
+ if (!ret.empty())
+ ret << _T(", ");
+ ret << _T("--") << opt->long_name;
+
+ if (opt->arg_description)
+ ret << _T("=") << opt->arg_description;
+ }
+
+ return _T(" ") + ret;
+}
+
+#endif // __WXGTK26__
+
+wxString
+wxGUIAppTraits::GetStandardCmdLineOptions(wxArrayString& names,
+ wxArrayString& desc) const
+{
+ wxString usage;
+
+#ifdef __WXGTK26__
+ // check whether GTK version is greater than 2.6 but also lower than 2.12
+ // because, as we use the undocumented _GOptionGroup struct, we don't want
+ // to run this code with future versions which might change it (2.11 is the
+ // latest one at the time of this writing)
+ if (!gtk_check_version(2,6,0) &&
+ gtk_check_version(2,12,0))
+ {
+ usage << _("The following standard GTK+ options are also supported:\n");
+
+ // passing true here means that the function can open the default
+ // display while parsing (not really used here anyhow)
+ GOptionGroup *gtkOpts = gtk_get_option_group(true);
+
+ // WARNING: here we access the internals of GOptionGroup:
+ GOptionEntry *entries = ((_GOptionGroup*)gtkOpts)->entries;
+ unsigned int n_entries = ((_GOptionGroup*)gtkOpts)->n_entries;
+ wxArrayString namesOptions, descOptions;
+
+ for ( size_t n = 0; n < n_entries; n++ )
+ {
+ if ( entries[n].flags & G_OPTION_FLAG_HIDDEN )
+ continue; // skip
+
+ names.push_back(wxGetNameFromGtkOptionEntry(&entries[n]));
+
+ const gchar * const entryDesc = entries[n].description;
+ desc.push_back(wxString(entryDesc));
+ }
+
+ g_option_group_free (gtkOpts);
+ }
+#else
+ wxUnusedVar(names);
+ wxUnusedVar(desc);
+#endif // __WXGTK26__
+
+ return usage;
+}
+
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