void
load_file (const gchar *filename)
{
FILE *file;
GtkTextIter start, end;
char *full_filename;
GError *err = NULL;
GString *buffer = g_string_new (NULL);
int state = 0;
gboolean in_para = 0;
if (current_file && !strcmp (current_file, filename))
{
g_string_free (buffer, TRUE);
return;
}
g_free (current_file);
current_file = g_strdup (filename);
gtk_text_buffer_get_bounds (info_buffer, &start, &end);
gtk_text_buffer_delete (info_buffer, &start, &end);
gtk_text_buffer_get_bounds (source_buffer, &start, &end);
gtk_text_buffer_delete (source_buffer, &start, &end);
full_filename = demo_find_file (filename, &err);
if (!full_filename)
{
g_warning ("%s", err->message);
g_error_free (err);
return;
}
file = g_fopen (full_filename, "r");
if (!file)
g_warning ("Cannot open %s: %s\n", full_filename, g_strerror (errno));
g_free (full_filename);
if (!file)
return;
gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
while (read_line (file, buffer))
{
gchar *p = buffer->str;
gchar *q;
gchar *r;
switch (state)
{
case 0:
/* Reading title */
while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
p++;
r = p;
while (*r != '/' && strlen (r))
r++;
if (strlen (r) > 0)
p = r + 1;
q = p + strlen (p);
while (q > p && g_ascii_isspace (*(q - 1)))
q--;
if (q > p)
{
int len_chars = g_utf8_pointer_to_offset (p, q);
end = start;
g_assert (strlen (p) >= q - p);
gtk_text_buffer_insert (info_buffer, &end, p, q - p);
start = end;
gtk_text_iter_backward_chars (&start, len_chars);
gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
start = end;
state++;
}
break;
case 1:
/* Reading body of info section */
while (g_ascii_isspace (*p))
p++;
if (*p == '*' && *(p + 1) == '/')
{
gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
state++;
}
else
{
int len;
while (*p == '*' || g_ascii_isspace (*p))
p++;
len = strlen (p);
while (g_ascii_isspace (*(p + len - 1)))
len--;
if (len > 0)
{
if (in_para)
gtk_text_buffer_insert (info_buffer, &start, " ", 1);
g_assert (strlen (p) >= len);
gtk_text_buffer_insert (info_buffer, &start, p, len);
in_para = 1;
}
else
{
gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
in_para = 0;
}
}
break;
case 2:
/* Skipping blank lines */
while (g_ascii_isspace (*p))
p++;
if (*p)
{
p = buffer->str;
state++;
/* Fall through */
}
else
break;
case 3:
/* Reading program body */
gtk_text_buffer_insert (source_buffer, &start, p, -1);
gtk_text_buffer_insert (source_buffer, &start, "\n", 1);
break;
}
}
fclose (file);
fontify ();
g_string_free (buffer, TRUE);
}
void
load_file (const gchar *demoname,
const gchar *filename)
{
GtkTextBuffer *info_buffer, *source_buffer;
GtkTextIter start, end;
char *resource_filename;
GError *err = NULL;
int state = 0;
gboolean in_para = 0;
gchar **lines;
GBytes *bytes;
gint i;
if (!g_strcmp0 (current_file, filename))
return;
remove_data_tabs ();
add_data_tab (demoname);
g_free (current_file);
current_file = g_strdup (filename);
info_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_create_tag (info_buffer, "title",
"font", "Sans 18",
"pixels-below-lines", 10,
NULL);
source_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_create_tag (source_buffer, "comment",
"foreground", "DodgerBlue",
NULL);
gtk_text_buffer_create_tag (source_buffer, "type",
"foreground", "ForestGreen",
NULL);
gtk_text_buffer_create_tag (source_buffer, "string",
"foreground", "RosyBrown",
"weight", PANGO_WEIGHT_BOLD,
NULL);
gtk_text_buffer_create_tag (source_buffer, "control",
"foreground", "purple",
NULL);
gtk_text_buffer_create_tag (source_buffer, "preprocessor",
"style", PANGO_STYLE_OBLIQUE,
"foreground", "burlywood4",
NULL);
gtk_text_buffer_create_tag (source_buffer, "function",
"weight", PANGO_WEIGHT_BOLD,
"foreground", "DarkGoldenrod4",
NULL);
resource_filename = g_strconcat ("/sources/", filename, NULL);
bytes = g_resources_lookup_data (resource_filename, 0, &err);
g_free (resource_filename);
if (bytes == NULL)
{
g_warning ("Cannot open source for %s: %s\n", filename, err->message);
g_error_free (err);
return;
}
lines = g_strsplit (g_bytes_get_data (bytes, NULL), "\n", -1);
g_bytes_unref (bytes);
gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
for (i = 0; lines[i] != NULL; i++)
{
gchar *p;
gchar *q;
gchar *r;
/* Make sure \r is stripped at the end for the poor windows people */
lines[i] = g_strchomp (lines[i]);
p = lines[i];
switch (state)
{
case 0:
/* Reading title */
while (*p == '/' || *p == '*' || g_ascii_isspace (*p))
p++;
r = p;
while (*r != '\0')
{
while (*r != '/' && *r != ':' && *r != '\0')
r++;
if (*r == '/')
{
r++;
p = r;
}
if (r[0] == ':' && r[1] == ':')
*r = '\0';
}
q = p + strlen (p);
while (q > p && g_ascii_isspace (*(q - 1)))
q--;
if (q > p)
{
int len_chars = g_utf8_pointer_to_offset (p, q);
end = start;
g_assert (strlen (p) >= q - p);
gtk_text_buffer_insert (info_buffer, &end, p, q - p);
start = end;
gtk_text_iter_backward_chars (&start, len_chars);
gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
start = end;
while (*p && *p != '\n') p++;
state++;
}
break;
case 1:
/* Reading body of info section */
while (g_ascii_isspace (*p))
p++;
if (*p == '*' && *(p + 1) == '/')
{
gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
state++;
}
else
{
int len;
while (*p == '*' || g_ascii_isspace (*p))
p++;
len = strlen (p);
while (g_ascii_isspace (*(p + len - 1)))
len--;
if (len > 0)
{
if (in_para)
gtk_text_buffer_insert (info_buffer, &start, " ", 1);
g_assert (strlen (p) >= len);
gtk_text_buffer_insert (info_buffer, &start, p, len);
in_para = 1;
}
else
{
gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
in_para = 0;
}
}
break;
case 2:
/* Skipping blank lines */
while (g_ascii_isspace (*p))
p++;
if (*p)
{
p = lines[i];
state++;
/* Fall through */
}
else
break;
case 3:
/* Reading program body */
gtk_text_buffer_insert (source_buffer, &start, p, -1);
gtk_text_buffer_insert (source_buffer, &start, "\n", 1);
break;
}
}
fontify (source_buffer);
g_strfreev (lines);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
g_object_unref (info_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
g_object_unref (source_buffer);
}
static void
add_data_tab (const gchar *demoname)
{
gchar *resource_dir, *resource_name;
gchar **resources;
GtkWidget *widget, *label;
guint i;
resource_dir = g_strconcat ("/", demoname, NULL);
resources = g_resources_enumerate_children (resource_dir, 0, NULL);
if (resources == NULL)
{
g_free (resource_dir);
return;
}
for (i = 0; resources[i]; i++)
{
resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
widget = gtk_image_new_from_resource (resource_name);
if (gtk_image_get_pixbuf (GTK_IMAGE (widget)) == NULL &&
gtk_image_get_animation (GTK_IMAGE (widget)) == NULL)
{
GBytes *bytes;
/* So we've used the best API available to figure out it's
* not an image. Let's try something else then.
*/
g_object_ref_sink (widget);
g_object_unref (widget);
bytes = g_resources_lookup_data (resource_name, 0, NULL);
g_assert (bytes);
if (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
{
/* Looks like it parses as text. Dump it into a textview then! */
GtkTextBuffer *buffer;
GtkWidget *textview;
widget = create_text (&textview, FALSE);
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
if (g_str_has_suffix (resource_name, ".c"))
fontify (buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
}
else
{
g_warning ("Don't know how to display resource '%s'", resource_name);
widget = NULL;
}
g_bytes_unref (bytes);
}
gtk_widget_show_all (widget);
label = gtk_label_new (resources[i]);
gtk_widget_show (label);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
gtk_container_child_set (GTK_CONTAINER (notebook),
GTK_WIDGET (widget),
"tab-expand", TRUE,
NULL);
g_free (resource_name);
}
g_strfreev (resources);
g_free (resource_dir);
}