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gtk,gestures: Only match 0-length strokes with homologous stock ones

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Avoids spurious stroke matching with fleeting touches.
This commit is contained in:
Carlos Garnacho
2012-01-12 03:38:25 +01:00
parent 42c0d95791
commit d6e23b0924
1 changed files with 18 additions and 1 deletions
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19
gtk/gtkgesturesinterpreter.c
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@@ -568,7 +568,12 @@ gtk_gesture_stroke_get_vector (const GtkGestureStroke *stroke,
*length = vector->length;
if (relative_length)
*relative_length = (gdouble) vector->length / stroke->total_length;
{
if (vector->length != 0)
*relative_length = (gdouble) vector->length / stroke->total_length;
else
*relative_length = 0;
}
return TRUE;
}
@@ -1050,6 +1055,18 @@ compare_strokes (const GtkGestureStroke *stroke_gesture,
&stock_length, &stock_relative_length))
return FALSE;
if (gesture_length == 0 && n_vectors_gesture == 1)
{
/* If both gestures have 0-length, they're good */
if (stock_length == 0 && n_vectors_stock == 1)
{
*confidence = 1;
return TRUE;
}
return FALSE;
}
while (cur_stock < n_vectors_stock &&
cur_gesture < n_vectors_gesture)
{