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https://github.com/brl/mutter.git
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6b4a9c4df5
* clutter/clutter-script-parser.c: (clutter_script_get_type_from_symbol), (clutter_script_get_type_from_class): Use BIND_LAZY flag when looking at the symbols, so we don't load them all up. * clutter/clutter-script.c (resolve_alpha_func): Ditto as above.
349 lines
7.8 KiB
C
349 lines
7.8 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <glib.h>
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#include "clutter-actor.h"
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#include "clutter-behaviour.h"
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#include "clutter-container.h"
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#include "clutter-script.h"
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#include "clutter-script-private.h"
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#include "clutter-scriptable.h"
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#include "clutter-debug.h"
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#include "clutter-private.h"
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GType
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clutter_script_get_type_from_symbol (const gchar *symbol)
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{
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static GModule *module = NULL;
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GTypeGetFunc func;
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GType gtype = G_TYPE_INVALID;
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if (!module)
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module = g_module_open (NULL, G_MODULE_BIND_LAZY);
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if (g_module_symbol (module, symbol, (gpointer)&func))
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gtype = func ();
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return gtype;
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}
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GType
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clutter_script_get_type_from_class (const gchar *name)
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{
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static GModule *module = NULL;
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GTypeGetFunc func;
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GString *symbol_name = g_string_new ("");
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char c, *symbol;
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int i;
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GType gtype = G_TYPE_INVALID;
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if (!module)
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module = g_module_open (NULL, 0);
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for (i = 0; name[i] != '\0'; i++)
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{
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c = name[i];
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/* skip if uppercase, first or previous is uppercase */
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if ((c == g_ascii_toupper (c) &&
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i > 0 && name[i-1] != g_ascii_toupper (name[i-1])) ||
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(i > 2 && name[i] == g_ascii_toupper (name[i]) &&
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name[i-1] == g_ascii_toupper (name[i-1]) &&
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name[i-2] == g_ascii_toupper (name[i-2])))
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g_string_append_c (symbol_name, '_');
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g_string_append_c (symbol_name, g_ascii_tolower (c));
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}
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g_string_append (symbol_name, "_get_type");
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symbol = g_string_free (symbol_name, FALSE);
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if (g_module_symbol (module, symbol, (gpointer)&func))
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{
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CLUTTER_NOTE (SCRIPT, "Type function: %s", symbol);
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gtype = func ();
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}
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g_free (symbol);
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return gtype;
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}
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gboolean
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clutter_script_enum_from_string (GType type,
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const gchar *string,
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gint *enum_value)
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{
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GEnumClass *eclass;
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GEnumValue *ev;
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gchar *endptr;
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gint value;
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gboolean retval = TRUE;
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g_return_val_if_fail (G_TYPE_IS_ENUM (type), 0);
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g_return_val_if_fail (string != NULL, 0);
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value = strtoul (string, &endptr, 0);
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if (endptr != string) /* parsed a number */
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*enum_value = value;
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else
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{
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eclass = g_type_class_ref (type);
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ev = g_enum_get_value_by_name (eclass, string);
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if (!ev)
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ev = g_enum_get_value_by_nick (eclass, string);
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if (ev)
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*enum_value = ev->value;
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else
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retval = FALSE;
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g_type_class_unref (eclass);
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}
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return retval;
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}
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gboolean
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clutter_script_flags_from_string (GType type,
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const gchar *string,
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gint *flags_value)
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{
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GFlagsClass *fclass;
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gchar *endptr, *prevptr;
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guint i, j, ret, value;
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gchar *flagstr;
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GFlagsValue *fv;
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const gchar *flag;
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gunichar ch;
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gboolean eos;
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g_return_val_if_fail (G_TYPE_IS_FLAGS (type), 0);
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g_return_val_if_fail (string != 0, 0);
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ret = TRUE;
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value = strtoul (string, &endptr, 0);
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if (endptr != string) /* parsed a number */
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*flags_value = value;
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else
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{
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fclass = g_type_class_ref (type);
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flagstr = g_strdup (string);
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for (value = i = j = 0; ; i++)
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{
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eos = flagstr[i] == '\0';
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if (!eos && flagstr[i] != '|')
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continue;
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flag = &flagstr[j];
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endptr = &flagstr[i];
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if (!eos)
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{
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flagstr[i++] = '\0';
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j = i;
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}
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/* trim spaces */
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for (;;)
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{
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ch = g_utf8_get_char (flag);
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if (!g_unichar_isspace (ch))
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break;
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flag = g_utf8_next_char (flag);
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}
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while (endptr > flag)
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{
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prevptr = g_utf8_prev_char (endptr);
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ch = g_utf8_get_char (prevptr);
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if (!g_unichar_isspace (ch))
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break;
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endptr = prevptr;
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}
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if (endptr > flag)
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{
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*endptr = '\0';
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fv = g_flags_get_value_by_name (fclass, flag);
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if (!fv)
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fv = g_flags_get_value_by_nick (fclass, flag);
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if (fv)
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value |= fv->value;
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else
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{
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ret = FALSE;
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break;
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}
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}
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if (eos)
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{
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*flags_value = value;
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break;
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}
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}
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g_free (flagstr);
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g_type_class_unref (fclass);
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}
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return ret;
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}
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static gboolean
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parse_knot_from_array (JsonArray *array,
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ClutterKnot *knot)
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{
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JsonNode *val;
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if (json_array_get_length (array) < 2)
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return FALSE;
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val = json_array_get_element (array, 0);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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knot->x = json_node_get_int (val);
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val = json_array_get_element (array, 1);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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knot->y = json_node_get_int (val);
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return TRUE;
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}
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static gboolean
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parse_knot_from_object (JsonObject *object,
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ClutterKnot *knot)
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{
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JsonNode *val;
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if (json_object_get_size (object) < 2)
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return FALSE;
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val = json_object_get_member (object, "x");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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knot->x = json_node_get_int (val);
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val = json_object_get_member (object, "y");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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knot->y = json_node_get_int (val);
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return TRUE;
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}
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gboolean
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clutter_script_parse_knot (ClutterScript *script,
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JsonNode *node,
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ClutterKnot *knot)
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{
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g_return_val_if_fail (CLUTTER_IS_SCRIPT (script), FALSE);
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g_return_val_if_fail (node != NULL, FALSE);
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g_return_val_if_fail (knot != NULL, FALSE);
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switch (JSON_NODE_TYPE (node))
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{
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case JSON_NODE_ARRAY:
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return parse_knot_from_array (json_node_get_array (node), knot);
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case JSON_NODE_OBJECT:
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return parse_knot_from_object (json_node_get_object (node), knot);
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default:
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break;
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}
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return FALSE;
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}
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static gboolean
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parse_geometry_from_array (JsonArray *array,
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ClutterGeometry *geometry)
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{
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JsonNode *val;
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if (json_array_get_length (array) < 4)
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return FALSE;
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val = json_array_get_element (array, 0);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->x = json_node_get_int (val);
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val = json_array_get_element (array, 1);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->y = json_node_get_int (val);
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val = json_array_get_element (array, 2);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->width = json_node_get_int (val);
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val = json_array_get_element (array, 3);
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->height = json_node_get_int (val);
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return TRUE;
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}
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static gboolean
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parse_geometry_from_object (JsonObject *object,
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ClutterGeometry *geometry)
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{
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JsonNode *val;
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if (json_object_get_size (object) < 4)
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return FALSE;
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val = json_object_get_member (object, "x");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->x = json_node_get_int (val);
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val = json_object_get_member (object, "y");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->y = json_node_get_int (val);
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val = json_object_get_member (object, "width");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->width = json_node_get_int (val);
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val = json_object_get_member (object, "height");
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if (JSON_NODE_TYPE (val) == JSON_NODE_VALUE)
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geometry->height = json_node_get_int (val);
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return TRUE;
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}
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gboolean
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clutter_script_parse_geometry (ClutterScript *script,
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JsonNode *node,
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ClutterGeometry *geometry)
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{
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g_return_val_if_fail (CLUTTER_IS_SCRIPT (script), FALSE);
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g_return_val_if_fail (node != NULL, FALSE);
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g_return_val_if_fail (geometry != NULL, FALSE);
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switch (JSON_NODE_TYPE (node))
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{
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case JSON_NODE_ARRAY:
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return parse_geometry_from_array (json_node_get_array (node), geometry);
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case JSON_NODE_OBJECT:
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return parse_geometry_from_object (json_node_get_object (node), geometry);
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default:
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break;
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}
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return FALSE;
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}
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