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app: simplify and clean up angle utility functions in GimpDial

This commit is contained in:
Michael Natterer 2014-05-25 17:22:50 +02:00
parent 04c36b80c1
commit e9e4791344
1 changed files with 16 additions and 33 deletions
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49
app/widgets/gimpdial.c
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@ -408,33 +408,11 @@ angle_mod_2PI (gdouble angle)
}
static gdouble
min_prox (gdouble alpha,
gdouble beta,
gdouble angle)
get_angle_distance (gdouble alpha,
gdouble beta)
{
gdouble temp1 = MIN (angle_mod_2PI (alpha - angle),
2 * G_PI - angle_mod_2PI (alpha - angle));
gdouble temp2 = MIN (angle_mod_2PI (beta - angle),
2 * G_PI - angle_mod_2PI (beta - angle));
return MIN (temp1, temp2);
}
static DialTarget
closest (gdouble alpha,
gdouble beta,
gdouble angle)
{
gdouble temp_alpha = MIN (angle_mod_2PI (alpha - angle),
2 * G_PI - angle_mod_2PI (alpha - angle));
gdouble temp_beta = MIN (angle_mod_2PI (beta - angle),
2 * G_PI - angle_mod_2PI (beta - angle));
if (temp_alpha - temp_beta < 0)
return DIAL_TARGET_ALPHA;
else
return DIAL_TARGET_BETA;
return ABS (MIN (angle_mod_2PI (alpha - beta),
2 * G_PI - angle_mod_2PI (alpha - beta)));
}
static gdouble
@ -499,15 +477,20 @@ gimp_dial_button_press_event (GtkWidget *widget,
dial->priv->press_angle = angle;
if (distance > SEGMENT_FRACTION &&
min_prox (dial->priv->alpha, dial->priv->beta, angle) < G_PI / 12)
MIN (get_angle_distance (dial->priv->alpha, angle),
get_angle_distance (dial->priv->beta, angle)) < G_PI / 12)
{
dial->priv->target = closest (dial->priv->alpha, dial->priv->beta,
angle);
if (dial->priv->target == DIAL_TARGET_ALPHA)
g_object_set (dial, "alpha", angle, NULL);
if (get_angle_distance (dial->priv->alpha, angle) <=
get_angle_distance (dial->priv->beta, angle))
{
dial->priv->target = DIAL_TARGET_ALPHA;
g_object_set (dial, "alpha", angle, NULL);
}
else
g_object_set (dial, "beta", angle, NULL);
{
dial->priv->target = DIAL_TARGET_BETA;
g_object_set (dial, "beta", angle, NULL);
}
}
else
{