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Stop casting ClutterTouchSequence* to ulong

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Use instead a hash table to link touch sequences to colors.
This commit is contained in:
Tomeu Vizoso 2012-06-13 12:37:02 +02:00
parent 60967127b4
commit d72558d3ca
1 changed files with 18 additions and 9 deletions
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27
tests/interactive/test-touch-events.c
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@ -40,6 +40,7 @@ static const ClutterColor const static_colors[] = {
{ 0xff, 0x00, 0xff, 0xff }, /* magenta */
{ 0xff, 0xff, 0x00, 0xff }, /* yellow */
};
static GHashTable *sequence_to_color = NULL;
static void
canvas_paint (ClutterCairoTexture *canvas)
@ -51,13 +52,20 @@ static void
draw_touch (ClutterEvent *event,
cairo_t *cr)
{
gulong sequence = (gulong) clutter_event_get_event_sequence (event);
ClutterColor color = static_colors[sequence % NUM_COLORS];
ClutterEventSequence *sequence = clutter_event_get_event_sequence (event);
const ClutterColor *color;
cairo_set_source_rgba (cr, color.red / 255,
color.green / 255,
color.blue / 255,
color.alpha / 255);
color = g_hash_table_lookup (sequence_to_color, sequence);
if (color == NULL)
{
color = &static_colors[g_random_int_range (0, NUM_COLORS)];
g_hash_table_insert (sequence_to_color, (gpointer) sequence, (gpointer) color);
}
cairo_set_source_rgba (cr, color->red / 255,
color->green / 255,
color->blue / 255,
color->alpha / 255);
cairo_arc (cr, event->touch.x, event->touch.y, 5, 0, 2 * G_PI);
cairo_fill (cr);
}
@ -85,14 +93,12 @@ event_cb (ClutterActor *actor, ClutterEvent *event, ClutterActor *canvas)
static gboolean
rect_event_cb (ClutterActor *actor, ClutterEvent *event, gpointer data)
{
gulong sequence;
ClutterColor color;
if (event->type != CLUTTER_TOUCH_BEGIN)
return FALSE;
sequence = (gulong) clutter_event_get_event_sequence (event);
color = static_colors[sequence % NUM_COLORS];
color = static_colors[g_random_int_range (0, NUM_COLORS)];
clutter_rectangle_set_color (CLUTTER_RECTANGLE (actor), &color);
return TRUE;
@ -147,9 +153,12 @@ test_touch_events_main (int argc, char *argv[])
clutter_actor_set_reactive (rectangle, TRUE);
}
sequence_to_color = g_hash_table_new (NULL, NULL);
clutter_main ();
g_slist_free_full (events, (GDestroyNotify) clutter_event_free);
g_hash_table_destroy (sequence_to_color);
return EXIT_SUCCESS;
}