doc: fix clutter_init() usage in examples

Make sure users get the idea that clutter_init()
has a return value that needs to be checked.

These were fixed via sed magic:

sed -i -s -e "s/clutter_init (.*)/\
if (& != CLUTTER_INIT_SUCCESS)\n    return 1/"\
 doc/*/*/*.{c,xml} doc/*/*.xml

http://bugzilla.clutter-project.org/show_bug.cgi?id=2574

doc/cookbook/examples/actors-composite-main.c

@@ -32,7 +32,8 @@ main (int   argc,
   ClutterConstraint *align_x_constraint;
   ClutterConstraint *align_y_constraint;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/animations-complex.c

@@ -40,7 +40,8 @@ main (int argc, char *argv[])
   if (argc > 1)
     filename = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   script = clutter_script_new ();
   clutter_script_load_from_file (script, filename, &error);

doc/cookbook/examples/animations-looping-animator.c

@@ -26,7 +26,8 @@ main (int   argc,
   ClutterTimeline *timeline;
   ClutterAnimator *animator;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 300, 200);

doc/cookbook/examples/animations-looping-implicit.c

@@ -36,7 +36,8 @@ main (int   argc,
 
   ClutterActor *stage;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 300, 200);

doc/cookbook/examples/animations-looping-state.c

@@ -37,7 +37,8 @@ main (int   argc,
   ClutterActor *actor;
   ClutterState *transitions;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 300, 200);

doc/cookbook/examples/animations-moving-animator.c

@@ -73,7 +73,8 @@ main (int   argc,
   /* seed random number generator */
   srand ((unsigned int) time (NULL));
 
-clutter_init (&argc, &argv);
+if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   state->animator = clutter_animator_new ();
   clutter_animator_set_duration (state->animator, 500);

doc/cookbook/examples/animations-moving-implicit.c

@@ -44,7 +44,8 @@ main (int   argc,
   AnimationSpec y_move = { "y", 400.0 };
   AnimationSpec z_move = { "depth", -1000.0 };
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 500, 500);

doc/cookbook/examples/animations-moving-state.c

@@ -27,7 +27,8 @@ main (int   argc,
   ClutterActor *green;
   ClutterState *transitions;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 650, 500);

doc/cookbook/examples/animations-path-circle.c

@@ -70,7 +70,8 @@ main (int   argc,
   ClutterActor *stage;
   ClutterActor *rectangle;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);

doc/cookbook/examples/animations-path-easing.c

@@ -49,7 +49,8 @@ main (int   argc,
   ClutterActor *stage;
   ClutterAnimator *animator;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/animations-path.c

@@ -14,7 +14,8 @@ main (int   argc,
   const ClutterColor *stage_color = clutter_color_new (51, 51, 85, 255);
   const ClutterColor *red_color = clutter_color_new (255, 0, 0, 255);
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 360, 300);

doc/cookbook/examples/animations-reuse.c

@@ -82,7 +82,8 @@ main (int argc, char *argv[])
   ClutterScript *script;
   ClutterActor *stage;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   script = clutter_script_new ();
   load_script_from_file (script, UI_FILE);

doc/cookbook/examples/animations-rotating.c

@@ -39,7 +39,8 @@ main (int argc, char *argv[])
   GError *error = NULL;
   gfloat texture_width, texture_height;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);

doc/cookbook/examples/animations-scaling-zoom.c

@@ -106,7 +106,8 @@ main (int   argc,
 
   image_path = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);

doc/cookbook/examples/animations-scaling.c

@@ -114,7 +114,8 @@ main (int   argc,
   State *state = g_new0 (State, 1);
   ClutterActor *stage;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 350, 350);

doc/cookbook/examples/effects-built-in.c

@@ -20,7 +20,8 @@ main (int   argc,
 
   filename = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/effects-custom-deform.c

@@ -46,7 +46,8 @@ main (int   argc,
 
   filename = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 400, 300);

doc/cookbook/examples/events-buttons-click.c

@@ -23,7 +23,8 @@ main (int   argc,
   ClutterActor *actor1;
   ClutterActor *actor2;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/events-buttons-lasso.c

@@ -122,7 +122,8 @@ main (int   argc,
   /* seed random number generator */
   srand ((unsigned int) time (NULL));
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 320, 240);

doc/cookbook/examples/events-buttons.c

@@ -57,7 +57,8 @@ main (int   argc,
   ClutterActor *red;
   ClutterActor *green;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/events-mouse-scroll.c

@@ -75,7 +75,8 @@ main (int argc, char *argv[])
       image_file_path = argv[1];
     }
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, STAGE_WIDTH, STAGE_HEIGHT);

doc/cookbook/examples/events-pointer-motion-crossing.c

@@ -34,7 +34,8 @@ main (int argc, char *argv[])
   ClutterActor *text;
   ClutterState *transitions;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);

doc/cookbook/examples/events-pointer-motion-scribbler.c

@@ -107,7 +107,8 @@ main (int argc, char *argv[])
   ClutterActor *rect;
   ClutterActor *canvas;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   context->path = clutter_path_new ();
 

doc/cookbook/examples/events-pointer-motion-stacked.c

@@ -50,7 +50,8 @@ main (int argc, char *argv[])
   ClutterActor *stage;
   ClutterActor *r1, *r2, *r3;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 300, 300);

doc/cookbook/examples/events-pointer-motion.c

@@ -29,7 +29,8 @@ main (int argc, char *argv[])
   ClutterActor *stage;
   ClutterActor *rectangle;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-bind-constraint-allocation.c

@@ -35,7 +35,8 @@ main (int argc, char *argv[])
   ClutterActor *actor;
   ClutterActor *overlay;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-bind-constraint-overlay.c

@@ -78,7 +78,8 @@ main (int argc, char *argv[])
   if (argc > 1)
     filename = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);

doc/cookbook/examples/layouts-bind-constraint-stage.c

@@ -16,7 +16,8 @@ main (int argc, char *argv[])
   ClutterConstraint *width_binding;
   ClutterConstraint *height_binding;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-box-menu.c

@@ -88,7 +88,8 @@ main (int   argc,
   ClutterLayoutManager *menu_layout;
   ClutterActor *menu;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-box-property-effects.c

@@ -314,7 +314,8 @@ main (int   argc,
 
   State *state = g_new0 (State, 1);
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   state->x_fill = FALSE;
   state->y_fill = FALSE;

doc/cookbook/examples/layouts-box.c

@@ -18,7 +18,8 @@ main (int   argc,
   ClutterActor *red;
   ClutterActor *blue;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-stacking-diff-sized-actors.c

@@ -14,7 +14,8 @@ main (int argc, char *argv[])
   ClutterColor *color;
   ClutterActor *rect;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, 400, 400);

doc/cookbook/examples/layouts-stacking.c

@@ -25,7 +25,8 @@ main (int argc, char *argv[])
   if (argc > 1)
     filename = argv[1];
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_set_size (stage, STAGE_SIDE, STAGE_SIDE);

doc/cookbook/examples/script-signals.c

@@ -61,7 +61,8 @@ main (int argc, char *argv[])
   gchar *filename = "script-signals.json";
   GError *error = NULL;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   ui = clutter_script_new ();
 

doc/cookbook/examples/script-ui.c

@@ -10,7 +10,8 @@ main (int argc, char *argv[])
   gchar *filename = "script-ui.json";
   GError *error = NULL;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   ui = clutter_script_new ();
 

doc/cookbook/examples/text-shadow.c

@@ -40,7 +40,8 @@ main (int argc, char *argv[])
   ClutterActor *stage;
   ClutterActor *text;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_stage_set_title (CLUTTER_STAGE (stage), "Text shadow");

doc/cookbook/examples/textures-crossfade-cogl.c

@@ -106,10 +106,11 @@ main (int argc, char *argv[])
   ClutterActor *texture;
   ClutterTimeline *timeline;
 
-  clutter_init_with_args (&argc, &argv,
-                          " - Crossfade", entries,
-                          NULL,
-                          NULL);
+  if (clutter_init_with_args (&argc, &argv,
+                              " - Crossfade", entries,
+                              NULL,
+                              NULL) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   if (source == NULL || target == NULL)
     return print_usage_and_exit (argv[0], EXIT_FAILURE);

doc/cookbook/examples/textures-crossfade-slideshow.c

@@ -122,7 +122,8 @@ main (int argc, char *argv[])
   for (i = 1; i < argc; i++)
     app->image_paths = g_slist_append (app->image_paths, argv[i]);
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   g_signal_connect (stage, "destroy", G_CALLBACK (clutter_main_quit), NULL);

doc/cookbook/examples/textures-crossfade.c

@@ -70,10 +70,11 @@ main (int argc, char *argv[])
   ClutterActor *top, *bottom;
   ClutterState *transitions;
 
-  clutter_init_with_args (&argc, &argv,
-                          " - cross-fade", entries,
-                          NULL,
-                          NULL);
+  if (clutter_init_with_args (&argc, &argv,
+                              " - cross-fade", entries,
+                              NULL,
+                              NULL) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   if (source == NULL || target == NULL)
     {
@@ -81,7 +82,8 @@ main (int argc, char *argv[])
       exit (EXIT_FAILURE);
     }
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_stage_set_title (CLUTTER_STAGE (stage), "cross-fade");

doc/cookbook/examples/textures-reflection.c

@@ -77,7 +77,8 @@ main (int argc, char *argv[])
   ClutterActor *clone;
   gfloat y_offset;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_new ();
   clutter_stage_set_title (CLUTTER_STAGE (stage), "Reflection");

doc/cookbook/examples/textures-split-go.c

@@ -114,7 +114,8 @@ main (int    argc,
   CoglHandle texture;
   Context context;
 
-  clutter_init (NULL, NULL);
+  if (clutter_init (NULL, NULL) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();
   clutter_actor_get_size (stage, &stage_width, &stage_height);

doc/cookbook/examples/textures-sub-texture.c

@@ -8,7 +8,8 @@ main (int argc, char **argv)
   gfloat image_width, image_height;
 
   /* Initialize Clutter */
-  clutter_init (NULL, NULL);
+  if (clutter_init (NULL, NULL) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   /* Get the default stage */
   stage = clutter_stage_get_default ();

doc/cookbook/textures.xml

@@ -441,7 +441,8 @@ main (int argc, char *argv[])
   /* initialize GLib's default threading implementation */
   g_thread_init (NULL);
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   /* ... get stage etc. */
 
@@ -711,7 +712,8 @@ _clone_paint_cb (ClutterActor *actor)
 int
 main (int argc, char *argv[])
 {
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   /* ... get stage etc. */
 

doc/reference/clutter/clutter-animation-tutorial.xml

@@ -299,7 +299,8 @@ main (int argc, char *argv[])
   ClutterAlpha     *alpha;
   ClutterActor     *stage, *actor;
 
-  clutter_init (&argc, &argv);
+  if (clutter_init (&argc, &argv) != CLUTTER_INIT_SUCCESS)
+    return 1;
 
   stage = clutter_stage_get_default ();