X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/904a68b6f648fc7802b41a8d176c78394252a4b7..a007b626a76dfab3b5a83565bb7eae1cae57e18f:/src/gtk/utilsgtk.cpp diff --git a/src/gtk/utilsgtk.cpp b/src/gtk/utilsgtk.cpp index 6d27531b26..445a5f3bb7 100644 --- a/src/gtk/utilsgtk.cpp +++ b/src/gtk/utilsgtk.cpp @@ -1,34 +1,50 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 #include #include #include +#include // for WNOHANG #include #include "glib.h" #include "gdk/gdk.h" #include "gtk/gtk.h" -#ifndef __WXGTK20__ -#include "gtk/gtkfeatures.h" -#endif #include "gdk/gdkx.h" #ifdef HAVE_X11_XKBLIB_H @@ -36,26 +52,35 @@ * 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 - + #include "X11/XKBlib.h" - + #undef explicit #endif // HAVE_X11_XKBLIB_H + +#if wxUSE_DETECT_SM + #include "X11/Xlib.h" + #include "X11/SM/SMlib.h" +#endif + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- -extern GtkWidget *wxRootWindow; +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. */ @@ -64,15 +89,50 @@ bool wxSetDetectableAutoRepeat( bool flag ) { 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 +// Escapes string so that it is valid Pango markup XML string: +wxString wxEscapeStringForPangoMarkup(const wxString& str) +{ + size_t len = str.length(); + wxString out; + out.Alloc(len); + for (size_t i = 0; i < len; i++) + { + wxChar c = str[i]; + switch (c) + { + case _T('&'): + out << _T("&"); + break; + case _T('<'): + out << _T("<"); + break; + case _T('>'): + out << _T(">"); + break; + case _T('\''): + out << _T("'"); + break; + case _T('"'): + out << _T("""); + break; + default: + out << c; + break; + } + } + return out; +} + + // ---------------------------------------------------------------------------- // display characterstics // ---------------------------------------------------------------------------- @@ -94,6 +154,17 @@ void wxDisplaySizeMM( int *width, int *height ) if (height) *height = gdk_screen_height_mm(); } +void wxClientDisplayRect(int *x, int *y, int *width, int *height) +{ + // This is supposed to return desktop dimensions minus any window + // manager panels, menus, taskbars, etc. If there is a way to do that + // for this platform please fix this function, otherwise it defaults + // to the entire desktop. + if (x) *x = 0; + if (y) *y = 0; + wxDisplaySize(width, height); +} + void wxGetMousePosition( int* x, int* y ) { gdk_window_get_pointer( (GdkWindow*) NULL, x, y, (GdkModifierType*) NULL ); @@ -101,25 +172,79 @@ void wxGetMousePosition( int* x, int* y ) bool wxColourDisplay() { - return TRUE; + return true; } int wxDisplayDepth() { - return gdk_window_get_visual( wxRootWindow->window )->depth; + return gdk_drawable_get_visual( wxGetRootWindow()->window )->depth; +} + +wxWindow* wxFindWindowAtPoint(const wxPoint& pt) +{ + return wxGenericFindWindowAtPoint(pt); } -int wxGetOsVersion(int *majorVsn, int *minorVsn) +#if !wxUSE_UNICODE + +wxCharBuffer wxConvertToGTK(const wxString& s, wxFontEncoding enc) { - if (majorVsn) *majorVsn = GTK_MAJOR_VERSION; - if (minorVsn) *minorVsn = GTK_MINOR_VERSION; + wxWCharBuffer wbuf; + if ( enc == wxFONTENCODING_SYSTEM || enc == wxFONTENCODING_DEFAULT ) + { + wbuf = wxConvUI->cMB2WC(s); + } + else // another encoding, use generic conversion class + { + wbuf = wxCSConv(enc).cMB2WC(s); + } - return wxGTK; + 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); + } + + return wxConvUTF8.cWC2MB(wbuf); } -wxWindow* wxFindWindowAtPoint(const wxPoint& pt) +wxCharBuffer wxConvertFromGTK(const wxString& s, wxFontEncoding enc) { - return wxGenericFindWindowAtPoint(pt); + // this conversion should never fail as GTK+ always uses UTF-8 internally + // so there are no complications here + const wxWCharBuffer wbuf(wxConvUTF8.cMB2WC(s)); + if ( enc == wxFONTENCODING_SYSTEM ) + return wxConvUI->cWC2MB(wbuf); + + return wxCSConv(enc).cWC2MB(wbuf); +} + +#endif // !wxUSE_UNICODE + +// Returns false if version is certainly greater or equal than major.minor.micro +// Returns true 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) +{ +#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 + return "too old headers"; +#endif } @@ -127,18 +252,39 @@ wxWindow* wxFindWindowAtPoint(const wxPoint& pt) // 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; + + // 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 ) + { + // no, it didn't exit yet, continue waiting + return; + } + + // set exit code to -1 if something bad happened + proc_data->exitcode = rc != -1 && WIFEXITED(status) ? WEXITSTATUS(status) + : -1; + + // child exited, end waiting close(source); + + // don't call us again! gdk_input_remove(proc_data->tag); - // This has to come after gdk_input_remove() or we will - // occasionally receive multiple callbacks with corrupt data - // pointers. (KB) wxHandleProcessTermination(proc_data); } +} int wxAddProcessCallback(wxEndProcessData *proc_data, int fd) { @@ -150,3 +296,298 @@ 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; +} + +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) +{ + return new wxGTKTimerImpl(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 ( de.empty() ) + { +#if wxUSE_DETECT_SM + 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(entryDesc ? wxString(entryDesc) : _T("")); + } + + g_option_group_free (gtkOpts); + } +#else + wxUnusedVar(names); + wxUnusedVar(desc); +#endif // __WXGTK26__ + + return usage; +} +