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gstdoc-scangobj
executable file
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gstdoc-scangobj
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#!/usr/bin/env perl
# -*- cperl -*-
#
# gtk-doc - GTK DocBook documentation generator.
# Copyright (C) 1998 Damon Chaplin
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#
#
# This gets information about object hierarchies and signals
# by compiling a small C program. CFLAGS and LDFLAGS must be
# set appropriately before running this script.
#
use Getopt::Long;
# Options
# name of documentation module
my $MODULE;
my $OUTPUT_DIR;
my $INSPECT_DIR;
my $VERBOSE;
my $PRINT_VERSION;
my $PRINT_HELP;
my $TYPE_INIT_FUNC="g_type_init ()";
# --nogtkinit is deprecated, as it is the default now anyway.
%optctl = (module => \$MODULE,
source => \$SOURCE,
types => \$TYPES_FILE,
nogtkinit => \$NO_GTK_INIT,
'type-init-func' => \$TYPE_INIT_FUNC,
'output-dir' => \$OUTPUT_DIR,
'inspect-dir' => \$INSPECT_DIR,
'verbose' => \$VERBOSE,
'version' => \$PRINT_VERSION,
'help' => \$PRINT_HELP);
GetOptions(\%optctl, "module=s", "source=s", "types:s", "output-dir:s", "inspect-dir:s", "nogtkinit", "type-init-func:s", "verbose", "version", "help");
if ($NO_GTK_INIT) {
# Do nothing. This just avoids a warning.
# the option is not used anymore
}
if ($PRINT_VERSION) {
print "1.5\n";
exit 0;
}
if (!$MODULE) {
$PRINT_HELP = 1;
}
if ($PRINT_HELP) {
print <<EOF;
gstdoc-scangobj version 1.5 - introspect gstreamer-plugins
--module=MODULE_NAME Name of the doc module being parsed
--source=SOURCE_NAME Name of the source module for plugins
--types=FILE The name of the file to store the types in
--type-init-func=FUNC The init function to call instead of g_type_init()
--output-dir=DIRNAME The directory where the results are stored
--inspect-dir=DIRNAME The directory where the plugin inspect data is stored
--verbose Print extra output while processing
--version Print the version of this program
--help Print this help
EOF
exit 0;
}
$OUTPUT_DIR = $OUTPUT_DIR ? $OUTPUT_DIR : ".";
$TYPES_FILE = $TYPES_FILE ? $TYPES_FILE : "$OUTPUT_DIR/$MODULE.types";
open (TYPES, $TYPES_FILE) || die "Cannot open $TYPES_FILE: $!\n";
open (OUTPUT, ">$MODULE-scan.c") || die "Cannot open $MODULE-scan.c: $!\n";
my $old_signals_filename = "$OUTPUT_DIR/$MODULE.signals";
my $new_signals_filename = "$OUTPUT_DIR/$MODULE.signals.new";
my $old_hierarchy_filename = "$OUTPUT_DIR/$MODULE.hierarchy";
my $new_hierarchy_filename = "$OUTPUT_DIR/$MODULE.hierarchy.new";
my $old_interfaces_filename = "$OUTPUT_DIR/$MODULE.interfaces";
my $new_interfaces_filename = "$OUTPUT_DIR/$MODULE.interfaces.new";
my $old_prerequisites_filename = "$OUTPUT_DIR/$MODULE.prerequisites";
my $new_prerequisites_filename = "$OUTPUT_DIR/$MODULE.prerequisites.new";
my $old_args_filename = "$OUTPUT_DIR/$MODULE.args";
my $new_args_filename = "$OUTPUT_DIR/$MODULE.args.new";
my $old_sections_filename = "$OUTPUT_DIR/$MODULE-sections";
my $new_sections_filename = "$OUTPUT_DIR/$MODULE-sections.new";
my $debug_log="g_message";
if (!defined($VERBOSE) or $VERBOSE eq "0") {
$debug_log="//$debug_log";
}
# write a C program to scan the types
$includes = "";
@types = ();
@impl_types = ();
for (<TYPES>) {
if (/^#include/) {
$includes .= $_;
} elsif (/^%/) {
next;
} elsif (/^\s*$/) {
next;
} elsif (/^type:(.*)$/) {
$t = $1;
chomp $t;
push @impl_types, $t;
} else {
chomp;
push @types, $_;
}
}
$ntypes = @types + @impl_types + 1;
print OUTPUT <<EOT;
/* file generated by common/gstdoc-scangobj */
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <gst/gst.h>
EOT
if ($includes) {
print OUTPUT $includes;
} else {
for (@types) {
print OUTPUT "extern GType $_ (void);\n";
}
}
print OUTPUT <<EOT;
#ifdef GTK_IS_WIDGET_CLASS
#include <gtk/gtkversion.h>
#endif
static GType *object_types = NULL;
static GString *xmlstr = NULL;
static const gchar*
xmlprint (gint indent, const gchar *tag, const gchar *data)
{
const gchar indent_str[] = " ";
/* reset */
g_string_truncate (xmlstr, 0);
g_string_append_len (xmlstr, indent_str, MIN (indent, strlen (indent_str)));
g_string_append_printf (xmlstr, "<%s>", tag);
if (data) {
gchar *s;
s = g_markup_escape_text (data, -1);
g_string_append (xmlstr, s);
g_free (s);
}
g_string_append_printf (xmlstr, "</%s>\\n", tag);
return xmlstr->str;
}
static gint
gst_feature_sort_compare (gconstpointer a, gconstpointer b)
{
const gchar *name_a = gst_plugin_feature_get_name ((GstPluginFeature *) a);
const gchar *name_b = gst_plugin_feature_get_name ((GstPluginFeature *) b);
return strcmp (name_a, name_b);
}
static gint
static_pad_template_compare (gconstpointer a, gconstpointer b)
{
GstStaticPadTemplate *spt_a = (GstStaticPadTemplate *) a;
GstStaticPadTemplate *spt_b = (GstStaticPadTemplate *) b;
/* we want SINK before SRC (enum is UNKNOWN, SRC, SINK) */
if (spt_a->direction != spt_b->direction)
return spt_b->direction - spt_a->direction;
/* we want ALWAYS first, SOMETIMES second, REQUEST last
* (enum is ALWAYS, SOMETIMES, REQUEST) */
if (spt_a->presence != spt_b->presence)
return spt_a->presence - spt_b->presence;
return strcmp (spt_a->name_template, spt_b->name_template);
}
static GType *
get_object_types (void)
{
gpointer g_object_class;
GList *plugins = NULL;
GList *factories = NULL;
GList *l;
GstElementFactory *factory = NULL;
GType type;
gint i = 0;
gboolean reinspect;
/* get a list of features from plugins in our source module */
plugins = gst_registry_get_plugin_list (gst_registry_get ());
xmlstr = g_string_new ("");
reinspect = !g_file_test ("scanobj-build.stamp", G_FILE_TEST_EXISTS);
while (plugins) {
GList *features;
GstPlugin *plugin;
const gchar *source;
FILE *inspect = NULL;
gchar *inspect_name;
plugin = (GstPlugin *) (plugins->data);
plugins = g_list_next (plugins);
source = gst_plugin_get_source (plugin);
if (!source || strcmp (source, "$SOURCE") != 0) {
continue;
}
/* skip static coreelements plugin with pipeline and bin element factory */
if (gst_plugin_get_filename (plugin) == NULL)
continue;
$debug_log ("plugin: %s source: %s", gst_plugin_get_name (plugin), source);
if (reinspect) {
gchar *basename;
inspect_name = g_strdup_printf ("$INSPECT_DIR" G_DIR_SEPARATOR_S "plugin-%s.xml",
gst_plugin_get_name (plugin));
inspect = fopen (inspect_name, "w");
if (inspect == NULL) {
g_error ("Could not open %s for writing: %s\\n", inspect_name,
g_strerror (errno));
}
g_free (inspect_name);
basename = g_path_get_basename (gst_plugin_get_filename (plugin));
/* output plugin data */
fputs ("<plugin>\\n",inspect);
fputs (xmlprint(2, "name", gst_plugin_get_name (plugin)),inspect);
fputs (xmlprint(2, "description", gst_plugin_get_description (plugin)),inspect);
fputs (xmlprint(2, "filename", gst_plugin_get_filename (plugin)),inspect);
fputs (xmlprint(2, "basename", basename),inspect);
fputs (xmlprint(2, "version", gst_plugin_get_version (plugin)),inspect);
fputs (xmlprint(2, "license", gst_plugin_get_license (plugin)),inspect);
fputs (xmlprint(2, "source", gst_plugin_get_source (plugin)),inspect);
fputs (xmlprint(2, "package", gst_plugin_get_package (plugin)),inspect);
fputs (xmlprint(2, "origin", gst_plugin_get_origin (plugin)),inspect);
fputs (" <elements>\\n", inspect);
g_free (basename);
}
features =
gst_registry_get_feature_list_by_plugin (gst_registry_get (),
gst_plugin_get_name (plugin));
/* sort factories by feature->name */
features = g_list_sort (features, gst_feature_sort_compare);
while (features) {
GstPluginFeature *feature;
feature = GST_PLUGIN_FEATURE (features->data);
feature = gst_plugin_feature_load (feature);
if (!feature) {
g_warning ("Could not load plugin feature %s",
gst_plugin_feature_get_name (feature));
}
factories = g_list_prepend (factories, feature);
if (GST_IS_ELEMENT_FACTORY (feature)) {
const gchar *pad_dir[] = { "unknown","source","sink" };
const gchar *pad_pres[] = { "always","sometimes","request" };
GList *pads, *pad;
$debug_log (" feature: %s", gst_plugin_feature_get_name (feature));
factory = GST_ELEMENT_FACTORY (feature);
if (reinspect) {
/* output element data */
fputs (" <element>\\n", inspect);
fputs (xmlprint(6, "name", gst_plugin_feature_get_name (feature)),inspect);
fputs (xmlprint(6, "longname", gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_LONGNAME)),inspect);
fputs (xmlprint(6, "class", gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS)),inspect);
fputs (xmlprint(6, "description", gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_DESCRIPTION)),inspect);
fputs (xmlprint(6, "author", gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_AUTHOR)),inspect);
fputs (" <pads>\\n", inspect);
/* output pad-template data */
pads = g_list_copy ((GList *) gst_element_factory_get_static_pad_templates (factory));
pads = g_list_sort (pads, static_pad_template_compare);
for (pad = pads; pad != NULL; pad = pad->next) {
GstStaticPadTemplate *pt = pad->data;
fputs (" <caps>\\n", inspect);
fputs (xmlprint(10, "name", pt->name_template),inspect);
fputs (xmlprint(10, "direction", pad_dir[pt->direction]),inspect);
fputs (xmlprint(10, "presence", pad_pres[pt->presence]),inspect);
fputs (xmlprint(10, "details", pt->static_caps.string),inspect);
fputs (" </caps>\\n", inspect);
}
g_list_free (pads);
fputs (" </pads>\\n </element>\\n", inspect);
}
} else if (GST_IS_TRACER_FACTORY (feature)) {
$debug_log (" feature: %s", gst_plugin_feature_get_name (feature));
if (reinspect) {
/* output element data */
fputs (" <tracer>\\n", inspect);
fputs (xmlprint(6, "name", gst_plugin_feature_get_name (feature)),inspect);
fputs (" </tracer>\\n", inspect);
}
}
features = g_list_next (features);
}
if (reinspect) {
fputs (" </elements>\\n</plugin>", inspect);
fclose (inspect);
}
}
g_string_free (xmlstr, TRUE);
$debug_log ("number of element factories: %d", g_list_length (factories));
/* allocate the object_types array to hold them */
object_types = g_new0 (GType, g_list_length (factories)+$ntypes+1);
l = factories;
i = 0;
/* fill it */
while (l) {
const gchar *name = NULL;
type = 0;
if (GST_IS_ELEMENT_FACTORY (l->data)) {
factory = GST_ELEMENT_FACTORY (l->data);
type = gst_element_factory_get_element_type (factory);
name = gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_LONGNAME);
} else if (GST_IS_TRACER_FACTORY (l->data)) {
GstTracerFactory *t = GST_TRACER_FACTORY (l->data);
type = gst_tracer_factory_get_tracer_type (t);
name = gst_plugin_feature_get_name (GST_PLUGIN_FEATURE (t));
}
if (type != 0) {
$debug_log ("adding type for factory %s", name);
object_types[i++] = type;
} else {
g_message ("type info for factory %s not found", name);
}
l = g_list_next (l);
}
EOT
# get_type functions:
for (@types) {
print OUTPUT <<EOT;
type = $_ ();
if (type == 0) {
g_message ("$_ () didn't return a valid type");
}
else {
object_types[i++] = type;
}
EOT
}
# Implicit types retrieved from GLib:
for (@impl_types) {
print OUTPUT <<EOT;
type = g_type_from_name ("$_");
if (type == 0) {
g_message ("Implicit type $_ not found");
}
else {
object_types[i++] = type;
}
EOT
}
print OUTPUT <<EOT;
object_types[i] = 0;
/* reference the GObjectClass to initialize the param spec pool
* potentially needed by interfaces. See http://bugs.gnome.org/571820 */
g_object_class = g_type_class_ref (G_TYPE_OBJECT);
/* Need to make sure all the types are loaded in and initialize
* their signals and properties.
*/
for (i=0; object_types[i]; i++)
{
if (G_TYPE_IS_CLASSED (object_types[i]))
g_type_class_ref (object_types[i]);
if (G_TYPE_IS_INTERFACE (object_types[i]))
g_type_default_interface_ref (object_types[i]);
}
g_type_class_unref (g_object_class);
return object_types;
}
/*
* This uses GObject type functions to output signal prototypes and the object
* hierarchy.
*/
/* The output files */
const gchar *signals_filename = "$new_signals_filename";
const gchar *hierarchy_filename = "$new_hierarchy_filename";
const gchar *interfaces_filename = "$new_interfaces_filename";
const gchar *prerequisites_filename = "$new_prerequisites_filename";
const gchar *args_filename = "$new_args_filename";
const gchar *sections_filename = "$new_sections_filename";
static void output_signals (void);
static void output_object_signals (FILE *fp, GType object_type);
static void output_object_signal (FILE *fp, const gchar *object_class_name,
guint signal_id);
static const gchar * get_type_name (GType type, gboolean * is_pointer);
static void output_object_hierarchy (void);
static void output_hierarchy (FILE *fp, GType type, guint level);
static void output_object_interfaces (void);
static void output_interfaces (FILE *fp, GType type);
static void output_interface_prerequisites (void);
static void output_prerequisites (FILE *fp, GType type);
static void output_args (void);
static void output_object_args (FILE *fp, GType object_type);
static void output_sections (void);
static void output_object_section (FILE *fp, GType object_type);
int
main (G_GNUC_UNUSED int argc, G_GNUC_UNUSED char *argv[])
{
$TYPE_INIT_FUNC;
get_object_types ();
output_signals ();
output_object_hierarchy ();
output_object_interfaces ();
output_interface_prerequisites ();
output_args ();
output_sections ();
return 0;
}
static void
output_signals (void)
{
FILE *fp;
gint i;
fp = fopen (signals_filename, "w");
if (fp == NULL)
{
g_warning ("Couldn't open output file: %s : %s", signals_filename, g_strerror(errno));
return;
}
for (i = 0; object_types[i]; i++)
output_object_signals (fp, object_types[i]);
fclose (fp);
}
static gint
compare_signals (const void *a, const void *b)
{
const guint *signal_a = a;
const guint *signal_b = b;
return strcmp (g_signal_name (*signal_a), g_signal_name (*signal_b));
}
/* This outputs all the signals of one object. */
static void
output_object_signals (FILE *fp, GType object_type)
{
const gchar *object_class_name;
guint *signals, n_signals;
guint sig;
if (G_TYPE_IS_INSTANTIATABLE (object_type) ||
G_TYPE_IS_INTERFACE (object_type))
{
object_class_name = g_type_name (object_type);
signals = g_signal_list_ids (object_type, &n_signals);
qsort (signals, n_signals, sizeof (guint), compare_signals);
for (sig = 0; sig < n_signals; sig++)
{
output_object_signal (fp, object_class_name, signals[sig]);
}
g_free (signals);
}
}
/* This outputs one signal. */
static void
output_object_signal (FILE *fp,
const gchar *object_name,
guint signal_id)
{
GSignalQuery query_info;
const gchar *type_name, *ret_type, *object_arg, *arg_name;
gchar *pos, *object_arg_lower;
gboolean is_pointer;
gchar buffer[1024];
guint i, param;
gint param_num, widget_num, event_num, callback_num;
gint *arg_num;
gchar signal_name[128];
gchar flags[16];
$debug_log ("Object: %s Signal: %u", object_name, signal_id);
param_num = 1;
widget_num = event_num = callback_num = 0;
g_signal_query (signal_id, &query_info);
/* Output the signal object type and the argument name. We assume the
type is a pointer - I think that is OK. We remove "Gtk" or "Gnome" and
convert to lower case for the argument name. */
pos = buffer;
sprintf (pos, "%s ", object_name);
pos += strlen (pos);
/* Try to come up with a sensible variable name for the first arg
* It chops off 2 know prefixes :/ and makes the name lowercase
* It should replace lowercase -> uppercase with '_'
* GFileMonitor -> file_monitor
* GIOExtensionPoint -> extension_point
* GtkTreeView -> tree_view
* if 2nd char is upper case too
* search for first lower case and go back one char
* else
* search for next upper case
*/
if (!strncmp (object_name, "Gtk", 3))
object_arg = object_name + 3;
else if (!strncmp (object_name, "Gnome", 5))
object_arg = object_name + 5;
else
object_arg = object_name;
object_arg_lower = g_ascii_strdown (object_arg, -1);
sprintf (pos, "*%s\\n", object_arg_lower);
pos += strlen (pos);
if (!strncmp (object_arg_lower, "widget", 6))
widget_num = 2;
g_free(object_arg_lower);
/* Convert signal name to use underscores rather than dashes '-'. */
strncpy (signal_name, query_info.signal_name, 127);
signal_name[127] = '\\0';
for (i = 0; signal_name[i]; i++)
{
if (signal_name[i] == '-')
signal_name[i] = '_';
}
/* Output the signal parameters. */
for (param = 0; param < query_info.n_params; param++)
{
type_name = get_type_name (query_info.param_types[param] & ~G_SIGNAL_TYPE_STATIC_SCOPE, &is_pointer);
/* Most arguments to the callback are called "arg1", "arg2", etc.
GtkWidgets are called "widget", "widget2", ...
GtkCallbacks are called "callback", "callback2", ... */
if (!strcmp (type_name, "GtkWidget"))
{
arg_name = "widget";
arg_num = &widget_num;
}
else if (!strcmp (type_name, "GtkCallback")
|| !strcmp (type_name, "GtkCCallback"))
{
arg_name = "callback";
arg_num = &callback_num;
}
else
{
arg_name = "arg";
arg_num = ¶m_num;
}
sprintf (pos, "%s ", type_name);
pos += strlen (pos);
if (!arg_num || *arg_num == 0)
sprintf (pos, "%s%s\\n", is_pointer ? "*" : " ", arg_name);
else
sprintf (pos, "%s%s%i\\n", is_pointer ? "*" : " ", arg_name,
*arg_num);
pos += strlen (pos);
if (arg_num)
{
if (*arg_num == 0)
*arg_num = 2;
else
*arg_num += 1;
}
}
pos = flags;
/* We use one-character flags for simplicity. */
if (query_info.signal_flags & G_SIGNAL_RUN_FIRST)
*pos++ = 'f';
if (query_info.signal_flags & G_SIGNAL_RUN_LAST)
*pos++ = 'l';
if (query_info.signal_flags & G_SIGNAL_RUN_CLEANUP)
*pos++ = 'c';
if (query_info.signal_flags & G_SIGNAL_NO_RECURSE)
*pos++ = 'r';
if (query_info.signal_flags & G_SIGNAL_DETAILED)
*pos++ = 'd';
if (query_info.signal_flags & G_SIGNAL_ACTION)
*pos++ = 'a';
if (query_info.signal_flags & G_SIGNAL_NO_HOOKS)
*pos++ = 'h';
*pos = 0;
/* Output the return type and function name. */
ret_type = get_type_name (query_info.return_type & ~G_SIGNAL_TYPE_STATIC_SCOPE, &is_pointer);
fprintf (fp,
"<SIGNAL>\\n<NAME>%s::%s</NAME>\\n<RETURNS>%s%s</RETURNS>\\n<FLAGS>%s</FLAGS>\\n%s</SIGNAL>\\n\\n",
object_name, query_info.signal_name, ret_type, is_pointer ? "*" : "", flags, buffer);
}
/* Returns the type name to use for a signal argument or return value, given
the GtkType from the signal info. It also sets is_pointer to TRUE if the
argument needs a '*' since it is a pointer. */
static const gchar *
get_type_name (GType type, gboolean * is_pointer)
{
const gchar *type_name;
*is_pointer = FALSE;
type_name = g_type_name (type);
switch (type) {
case G_TYPE_NONE:
case G_TYPE_CHAR:
case G_TYPE_UCHAR:
case G_TYPE_BOOLEAN:
case G_TYPE_INT:
case G_TYPE_UINT:
case G_TYPE_LONG:
case G_TYPE_ULONG:
case G_TYPE_FLOAT:
case G_TYPE_DOUBLE:
case G_TYPE_POINTER:
/* These all have normal C type names so they are OK. */
return type_name;
case G_TYPE_STRING:
/* A GtkString is really a gchar*. */
*is_pointer = TRUE;
return "gchar";
case G_TYPE_ENUM:
case G_TYPE_FLAGS:
/* We use a gint for both of these. Hopefully a subtype with a decent
name will be registered and used instead, as GTK+ does itself. */
return "gint";
case G_TYPE_BOXED:
/* The boxed type shouldn't be used itself, only subtypes. Though we
return 'gpointer' just in case. */
return "gpointer";
case G_TYPE_PARAM:
/* A GParam is really a GParamSpec*. */
*is_pointer = TRUE;
return "GParamSpec";
#if GLIB_CHECK_VERSION (2, 25, 9)
case G_TYPE_VARIANT:
*is_pointer = TRUE;
return "GVariant";
#endif
default:
break;
}
/* For all GObject subclasses we can use the class name with a "*",
e.g. 'GtkWidget *'. */
if (g_type_is_a (type, G_TYPE_OBJECT))
*is_pointer = TRUE;
/* Also catch non GObject root types */
if (G_TYPE_IS_CLASSED (type))
*is_pointer = TRUE;
/* All boxed subtypes will be pointers as well. */
/* Exception: GStrv */
if (g_type_is_a (type, G_TYPE_BOXED) &&
!g_type_is_a (type, G_TYPE_STRV))
*is_pointer = TRUE;
/* All pointer subtypes will be pointers as well. */
if (g_type_is_a (type, G_TYPE_POINTER))
*is_pointer = TRUE;
/* But enums are not */
if (g_type_is_a (type, G_TYPE_ENUM) ||
g_type_is_a (type, G_TYPE_FLAGS))
*is_pointer = FALSE;
return type_name;
}
/* This outputs the hierarchy of all objects which have been initialized,
i.e. by calling their XXX_get_type() initialization function. */
static void
output_object_hierarchy (void)
{
FILE *fp;
gint i,j;
GType root, type;
GType root_types[$ntypes] = { G_TYPE_INVALID, };
fp = fopen (hierarchy_filename, "w");
if (fp == NULL)
{
g_warning ("Couldn't open output file: %s : %s", hierarchy_filename, g_strerror(errno));
return;
}
output_hierarchy (fp, G_TYPE_OBJECT, 0);
output_hierarchy (fp, G_TYPE_INTERFACE, 0);
for (i=0; object_types[i]; i++) {
root = object_types[i];
while ((type = g_type_parent (root))) {
root = type;
}
if ((root != G_TYPE_OBJECT) && (root != G_TYPE_INTERFACE)) {
for (j=0; root_types[j]; j++) {
if (root == root_types[j]) {
root = G_TYPE_INVALID; break;
}
}
if(root) {
root_types[j] = root;
output_hierarchy (fp, root, 0);
}
}
}
fclose (fp);
}
static int
compare_types (const void *a, const void *b)
{
const char *na = g_type_name (*((GType *)a));
const char *nb = g_type_name (*((GType *)b));
return g_strcmp0 (na, nb);
}
/* This is called recursively to output the hierarchy of a object. */
static void
output_hierarchy (FILE *fp,
GType type,
guint level)
{
guint i;
GType *children;
guint n_children;
if (!type)
return;
for (i = 0; i < level; i++)
fprintf (fp, " ");
fprintf (fp, "%s\\n", g_type_name (type));
children = g_type_children (type, &n_children);
qsort (children, n_children, sizeof (GType), compare_types);
for (i=0; i < n_children; i++)
output_hierarchy (fp, children[i], level + 1);
g_free (children);
}
static void output_object_interfaces (void)
{
guint i;
FILE *fp;
fp = fopen (interfaces_filename, "w");
if (fp == NULL)
{
g_warning ("Couldn't open output file: %s : %s", interfaces_filename, g_strerror(errno));
return;
}
output_interfaces (fp, G_TYPE_OBJECT);
for (i = 0; object_types[i]; i++)
{
if (!g_type_parent (object_types[i]) &&
(object_types[i] != G_TYPE_OBJECT) &&
G_TYPE_IS_INSTANTIATABLE (object_types[i]))
{
output_interfaces (fp, object_types[i]);
}
}
fclose (fp);
}
static void
output_interfaces (FILE *fp,
GType type)
{
guint i;
GType *children, *interfaces;
guint n_children, n_interfaces;
if (!type)
return;
interfaces = g_type_interfaces (type, &n_interfaces);
if (n_interfaces > 0)
{
fprintf (fp, "%s", g_type_name (type));
for (i=0; i < n_interfaces; i++)
fprintf (fp, " %s", g_type_name (interfaces[i]));
fprintf (fp, "\\n");
}
g_free (interfaces);
children = g_type_children (type, &n_children);
for (i=0; i < n_children; i++)
output_interfaces (fp, children[i]);
g_free (children);
}
static void output_interface_prerequisites (void)
{
FILE *fp;
fp = fopen (prerequisites_filename, "w");
if (fp == NULL)
{
g_warning ("Couldn't open output file: %s : %s", prerequisites_filename, g_strerror(errno));
return;
}
output_prerequisites (fp, G_TYPE_INTERFACE);
fclose (fp);
}
static void
output_prerequisites (FILE *fp,
GType type)
{
#if GLIB_CHECK_VERSION(2,1,0)
guint i;
GType *children, *prerequisites;
guint n_children, n_prerequisites;
if (!type)
return;
prerequisites = g_type_interface_prerequisites (type, &n_prerequisites);
if (n_prerequisites > 0)
{
fprintf (fp, "%s", g_type_name (type));
for (i=0; i < n_prerequisites; i++)
fprintf (fp, " %s", g_type_name (prerequisites[i]));
fprintf (fp, "\\n");
}
g_free (prerequisites);
children = g_type_children (type, &n_children);
for (i=0; i < n_children; i++)
output_prerequisites (fp, children[i]);
g_free (children);
#endif
}
static void
output_args (void)
{
FILE *fp;
gint i;
fp = fopen (args_filename, "w");
if (fp == NULL)
{
g_warning ("Couldn't open output file: %s : %s", args_filename, g_strerror(errno));
return;
}
for (i = 0; object_types[i]; i++) {
output_object_args (fp, object_types[i]);
}
fclose (fp);
}
static gint
compare_param_specs (const void *a, const void *b)
{
GParamSpec *spec_a = *(GParamSpec **)a;
GParamSpec *spec_b = *(GParamSpec **)b;
return strcmp (g_param_spec_get_name (spec_a), g_param_spec_get_name (spec_b));
}
/* Its common to have unsigned properties restricted
* to the signed range. Therefore we make this look
* a bit nicer by spelling out the max constants.
*/
/* Don't use "==" with floats, it might trigger a gcc warning. */
#define GTKDOC_COMPARE_FLOAT(x, y) (x <= y && x >= y)
static gchar*
describe_double_constant (gdouble value)
{
gchar *desc;
if (GTKDOC_COMPARE_FLOAT (value, G_MAXDOUBLE))
desc = g_strdup ("G_MAXDOUBLE");
else if (GTKDOC_COMPARE_FLOAT (value, G_MINDOUBLE))
desc = g_strdup ("G_MINDOUBLE");
else if (GTKDOC_COMPARE_FLOAT (value, -G_MAXDOUBLE))
desc = g_strdup ("-G_MAXDOUBLE");
else if (GTKDOC_COMPARE_FLOAT (value, G_MAXFLOAT))
desc = g_strdup ("G_MAXFLOAT");
else if (GTKDOC_COMPARE_FLOAT (value, G_MINFLOAT))
desc = g_strdup ("G_MINFLOAT");
else if (GTKDOC_COMPARE_FLOAT (value, -G_MAXFLOAT))
desc = g_strdup ("-G_MAXFLOAT");
else{
/* make sure floats are output with a decimal dot irrespective of