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app: add GimpToolCompass::effective-orientation property

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In GimpToolCompass, add a read-only "effective-orientation"
property, which returns the actual orientation of the compass; in
particular, if the "orientation" property is set to AUTO,
"effective-orientation" returns HORIZONTAL or VERTICAL, depending
on the current compass direction.  In 3-point mode, the property
always returns AUTO.
This commit is contained in:
Ell 2019-02-04 09:40:15 -05:00
parent 7fc5698f32
commit 40c0913178
1 changed files with 39 additions and 13 deletions
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52
app/display/gimptoolcompass.c
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@ -77,7 +77,8 @@ enum
PROP_X3,
PROP_Y3,
PROP_PIXEL_ANGLE,
PROP_UNIT_ANGLE
PROP_UNIT_ANGLE,
PROP_EFFECTIVE_ORIENTATION
};
enum
@ -98,6 +99,7 @@ struct _GimpToolCompassPrivate
gdouble display_angle;
gdouble pixel_angle;
gdouble unit_angle;
GimpCompassOrientation effective_orientation;
CompassFunction function;
gdouble mouse_x;
@ -274,6 +276,12 @@ gimp_tool_compass_class_init (GimpToolCompassClass *klass)
g_param_spec_double ("unit-angle", NULL, NULL,
-G_PI, G_PI, 0.0,
GIMP_PARAM_READABLE));
g_object_class_install_property (object_class, PROP_EFFECTIVE_ORIENTATION,
g_param_spec_enum ("effective-orientation", NULL, NULL,
GIMP_TYPE_COMPASS_ORIENTATION,
GIMP_COMPASS_ORIENTATION_AUTO,
GIMP_PARAM_READABLE));
}
static void
@ -362,6 +370,9 @@ gimp_tool_compass_set_property (GObject *object,
switch (property_id)
{
case PROP_ORIENTATION:
private->orientation = g_value_get_enum (value);
break;
case PROP_N_POINTS:
private->n_points = g_value_get_int (value);
break;
@ -383,9 +394,6 @@ gimp_tool_compass_set_property (GObject *object,
case PROP_Y3:
private->y[2] = g_value_get_int (value);
break;
case PROP_ORIENTATION:
private->orientation = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
@ -404,6 +412,9 @@ gimp_tool_compass_get_property (GObject *object,
switch (property_id)
{
case PROP_ORIENTATION:
g_value_set_enum (value, private->orientation);
break;
case PROP_N_POINTS:
g_value_set_int (value, private->n_points);
break;
@ -425,15 +436,15 @@ gimp_tool_compass_get_property (GObject *object,
case PROP_Y3:
g_value_set_int (value, private->y[2]);
break;
case PROP_ORIENTATION:
g_value_set_enum (value, private->orientation);
break;
case PROP_PIXEL_ANGLE:
g_value_set_double (value, private->pixel_angle);
break;
case PROP_UNIT_ANGLE:
g_value_set_double (value, private->unit_angle);
break;
case PROP_EFFECTIVE_ORIENTATION:
g_value_set_enum (value, private->effective_orientation);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
@ -1086,6 +1097,8 @@ gimp_tool_compass_update_angle (GimpToolCompass *compass,
if (private->n_points == 3)
{
orientation = GIMP_COMPASS_ORIENTATION_AUTO;
private->radius2.x = private->x[2] - private->x[0];
private->radius2.y = private->y[2] - private->y[0];
}
@ -1144,14 +1157,20 @@ gimp_tool_compass_update_angle (GimpToolCompass *compass,
return;
}
else if (orientation == GIMP_COMPASS_ORIENTATION_AUTO &&
fabs (private->display_angle) > G_PI / 4.0 + EPSILON)
else if (orientation == GIMP_COMPASS_ORIENTATION_AUTO)
{
gimp_tool_compass_update_angle (compass,
GIMP_COMPASS_ORIENTATION_VERTICAL,
FALSE);
if (fabs (private->display_angle) <= G_PI / 4.0 + EPSILON)
{
orientation = GIMP_COMPASS_ORIENTATION_HORIZONTAL;
}
else
{
gimp_tool_compass_update_angle (compass,
GIMP_COMPASS_ORIENTATION_VERTICAL,
FALSE);
return;
return;
}
}
}
@ -1168,6 +1187,13 @@ gimp_tool_compass_update_angle (GimpToolCompass *compass,
g_object_notify (G_OBJECT (compass), "unit-angle");
}
if (orientation != private->effective_orientation)
{
private->effective_orientation = orientation;
g_object_notify (G_OBJECT (compass), "effective-orientation");
}
}