acttext = clutter_text_new_full("Monospace 20", (gchar*)data , &white);
==> to split these lines:
clutter_text_set_font_name(CLUTTER_TEXT(acttext), "Monospace 20");
clutter_text_set_color(CLUTTER_TEXT(acttext), &white);
// clutter_text_set_text() will raise pango problem, cause segmentation fault
clutter_text_set_text(CLUTTER_TEXT(acttext), "text");the result is: in thread function the text will have pango problem. But if you had already used/load such " Monospace 20" font in main thread (clutter_text_new_full and clutter_actor_get_width), it'll be ok in the new thread. So the clutter library may not thread safe. Mit freundlichen Grüßen / Best regards BeQIK Charles RBAC/CM/ESW1-CN -----Original Message----- From: clutter-app-devel-list-boun...@clutter-project.org [mailto:clutter-app-devel-list-boun...@clutter-project.org] On Behalf Of david.sale.75 Sent: Saturday, May 12, 2012 1:29 PM To: clutter-app Subject: Can not get actor width in the thread ? 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 _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list@clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list@clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list
