The clutter API is not thread safe. You just can't do stuff like that.
--
Lionel
On Sat, 2012-05-12 at 13:28 +0800, david.sale.75 wrote:
> Hi, all:
>
> I write a test demo, use clutter_actor_get_width() get actor width, it is
> correct
> if in the main thread call, but incorrect in then new thread.
> used clutter-1.6.20 and pango-1.28.4 and glib2-2.28.6
>
> Pango:ERROR:pango-layout.c:3743:pango_layout_check_lines: assertion failed:
> (!layout->log_attrs)
> The code is what problem? have any error? Tks.
>
> #include <glib.h>
> #include <clutter/clutter.h>
> ClutterActor *gStage, *acttext=NULL;
> ClutterColor white = {255, 255, 255, 255};
> ClutterColor black = {0, 0, 0, 0};
>
> static gpointer test(gpointer data)
> {
> gfloat ww;
> if (acttext)
> clutter_container_remove_actor(CLUTTER_CONTAINER(gStage), acttext);
> acttext = clutter_text_new_full("Monospace 20", (gchar*)data , &white);
> clutter_text_set_single_line_mode(CLUTTER_TEXT(acttext), TRUE);
> clutter_container_add_actor(CLUTTER_CONTAINER(gStage), acttext);
> clutter_actor_set_position(acttext, 100, 100);
>
> //why not get width
> //if use clutter_actor_get_width(acttext);
> //Pango:ERROR:pango-layout.c:3743:pango_layout_check_lines: assertion failed:
> (!layout->log_attrs)
> clutter_actor_get_width(acttext);
> g_print("act width: %d \n", acttext);
>
> }
>
> int main(int argc, char* argv[])
> {
> GThread *threadid;
> gchar text[128];
> g_thread_init(NULL);
> clutter_threads_init();
> clutter_init(&argc, &argv);
>
> gStage = clutter_stage_get_default();
> clutter_actor_set_size(gStage, 600, 400);
> clutter_stage_set_color(CLUTTER_STAGE(gStage), &black);
> clutter_actor_show(gStage);
> sprintf(text, "TEST TEST TEST TEST");
> threadid = g_thread_create(test, (gpointer)text, FALSE, NULL);
>
> clutter_main();
>
> }
>
> --------------
> david.sale.75
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