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Fix last improper usage of ClutterUnits

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ClutterUnits should not be used interchangeably as, or with
ClutterFixed values. ClutterUnits should also not be assumed
to be integers.

This commit fixes the last few improper usages of ClutterUnit
values, and adds a CLUTTER_UNITS_FORMAT macro for safely printing
ClutterUnit values with printf().
This commit is contained in:
Emmanuele Bassi 2009-01-08 15:45:22 +00:00
parent e4b1859077
commit e9ee7f049d
3 changed files with 59 additions and 52 deletions
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44
clutter/clutter-actor.c
View File

@ -1013,7 +1013,8 @@ clutter_actor_apply_relative_transform_to_point (ClutterActor *self,
ClutterVertex *vertex)
{
ClutterFixed v[4];
ClutterFixed x, y, z, w;
ClutterUnit x, y, z, w;
fixed_vertex_t tmp;
g_return_if_fail (CLUTTER_IS_ACTOR (self));
g_return_if_fail (ancestor == NULL || CLUTTER_IS_ACTOR (ancestor));
@ -1026,8 +1027,7 @@ clutter_actor_apply_relative_transform_to_point (ClutterActor *self,
w = COGL_FIXED_1;
/* First we tranform the point using the OpenGL modelview matrix */
clutter_actor_transform_point_relative (self, ancestor,
&x, &y, &z, &w);
clutter_actor_transform_point_relative (self, ancestor, &x, &y, &z, &w);
cogl_get_viewport (v);
@ -1035,12 +1035,12 @@ clutter_actor_apply_relative_transform_to_point (ClutterActor *self,
* The w[3] parameter should always be 1.0 here, so we ignore it; otherwise
* we would have to divide the original verts with it.
*/
vertex->x =
CLUTTER_UNITS_FROM_FIXED (COGL_FIXED_MUL ((x + COGL_FIXED_0_5), v[2]));
vertex->y =
CLUTTER_UNITS_FROM_FIXED (COGL_FIXED_MUL ((COGL_FIXED_0_5 - y), v[3]));
vertex->z =
CLUTTER_UNITS_FROM_FIXED (COGL_FIXED_MUL ((z + COGL_FIXED_0_5), v[2]));
tmp.x = COGL_FIXED_MUL (CLUTTER_UNITS_TO_FIXED (x) + COGL_FIXED_0_5, v[2]);
tmp.y = COGL_FIXED_MUL (COGL_FIXED_0_5 - CLUTTER_UNITS_TO_FIXED (y), v[3]);
tmp.z = COGL_FIXED_MUL (CLUTTER_UNITS_TO_FIXED (z) + COGL_FIXED_0_5, v[2]);
tmp.w = 0;
fixed_vertex_to_units (&tmp, vertex);
}
/**
@ -1060,6 +1060,7 @@ clutter_actor_apply_transform_to_point (ClutterActor *self,
const ClutterVertex *point,
ClutterVertex *vertex)
{
ClutterUnit x, y, z, w;
ClutterFixed mtx_p[16];
ClutterFixed v[4];
fixed_vertex_t tmp = { 0, };
@ -1068,13 +1069,18 @@ clutter_actor_apply_transform_to_point (ClutterActor *self,
g_return_if_fail (point != NULL);
g_return_if_fail (vertex != NULL);
tmp.x = CLUTTER_UNITS_TO_FIXED (vertex->x);
tmp.y = CLUTTER_UNITS_TO_FIXED (vertex->y);
tmp.z = CLUTTER_UNITS_TO_FIXED (vertex->z);
tmp.w = COGL_FIXED_1;
x = point->x;
y = point->y;
z = point->z;
w = CLUTTER_UNITS_FROM_INT (1);
/* First we tranform the point using the OpenGL modelview matrix */
clutter_actor_transform_point (self, &tmp.x, &tmp.y, &tmp.z, &tmp.w);
clutter_actor_transform_point (self, &x, &y, &z, &w);
tmp.x = CLUTTER_UNITS_TO_FIXED (x);
tmp.y = CLUTTER_UNITS_TO_FIXED (y);
tmp.z = CLUTTER_UNITS_TO_FIXED (z);
tmp.w = CLUTTER_UNITS_TO_FIXED (w);
cogl_get_projection_matrix (mtx_p);
cogl_get_viewport (v);
@ -3244,8 +3250,9 @@ clutter_actor_get_preferred_width (ClutterActor *self,
if (natural_width < min_width)
{
g_warning ("Actor of type %s reported a natural width of %d (%d px) "
"lower than min width %d (%d px)",
g_warning ("Actor of type %s reported a natural width "
"of %" CLUTTER_UNITS_FORMAT " (%d px) lower "
"than min width %" CLUTTER_UNITS_FORMAT " (%d px)",
G_OBJECT_TYPE_NAME (self),
natural_width, CLUTTER_UNITS_TO_DEVICE (natural_width),
min_width, CLUTTER_UNITS_TO_DEVICE (min_width));
@ -3314,8 +3321,9 @@ clutter_actor_get_preferred_height (ClutterActor *self,
if (natural_height < min_height)
{
g_warning ("Actor of type %s reported a natural height of %d "
"(%d px) lower than min height %d (%d px)",
g_warning ("Actor of type %s reported a natural height "
"of %" CLUTTER_UNITS_FORMAT " (%d px) lower than "
"min height %" CLUTTER_UNITS_FORMAT " (%d px)",
G_OBJECT_TYPE_NAME (self),
natural_height, CLUTTER_UNITS_TO_DEVICE (natural_height),
min_height, CLUTTER_UNITS_TO_DEVICE (min_height));

2
clutter/clutter-units.h
View File

@ -59,6 +59,8 @@ typedef gint32 ClutterUnit;
#define CLUTTER_UNITS_FROM_FIXED(x) (x)
#define CLUTTER_UNITS_TO_FIXED(x) (x)
#define CLUTTER_UNITS_FORMAT "d"
/**
* CLUTTER_UNITS_FROM_DEVICE:
* @x: value in pixels

65
tests/interactive/test-project.c
View File

@ -21,19 +21,19 @@ init_handles ()
clutter_actor_set_position (p[i], 0, 0);
clutter_group_add (CLUTTER_GROUP (main_stage), p[i]);
clutter_actor_set_position (p[i],
CLUTTER_FIXED_TO_INT (v[i].x) -
clutter_actor_get_width (p[i])/2,
CLUTTER_FIXED_TO_INT (v[i].y) -
clutter_actor_get_height (p[i])/2);
clutter_actor_set_positionu (p[i],
v[i].x -
clutter_actor_get_widthu (p[i])/2,
v[i].y -
clutter_actor_get_heightu (p[i])/2);
clutter_actor_raise_top (p[i]);
clutter_actor_show (p[i]);
}
v1.x = CLUTTER_INT_TO_FIXED (clutter_actor_get_width (rect)/2);
v1.y = CLUTTER_INT_TO_FIXED (clutter_actor_get_height (rect)/2);
v1.x = clutter_actor_get_widthu (rect) / 2;
v1.y = clutter_actor_get_heightu (rect) / 2;
v1.z = 0;
clutter_actor_apply_transform_to_point (rect, &v1, &v2);
@ -41,11 +41,11 @@ init_handles ()
clutter_actor_set_size (p[4], 5, 5);
clutter_actor_set_position (p[4], 0, 0);
clutter_group_add (CLUTTER_GROUP (main_stage), p[4]);
clutter_actor_set_position (p[4],
CLUTTER_FIXED_TO_INT (v2.x) -
clutter_actor_get_width (p[4])/2,
CLUTTER_FIXED_TO_INT (v2.y) -
clutter_actor_get_height (p[4])/2);
clutter_actor_set_positionu (p[4],
v2.x -
clutter_actor_get_widthu (p[4])/2,
v2.y -
clutter_actor_get_heightu (p[4])/2);
clutter_actor_raise_top (p[4]);
@ -62,23 +62,21 @@ place_handles ()
clutter_actor_get_abs_allocation_vertices (rect, v);
for (i = 0; i < 4; ++i)
{
clutter_actor_set_position (p[i],
CLUTTER_FIXED_TO_INT (v[i].x) -
clutter_actor_get_width (p[i])/2,
CLUTTER_FIXED_TO_INT (v[i].y) -
clutter_actor_get_height (p[i])/2);
clutter_actor_set_positionu (p[i],
v[i].x -
clutter_actor_get_widthu (p[i])/2,
v[i].y -
clutter_actor_get_heightu (p[i])/2);
}
v1.x = CLUTTER_INT_TO_FIXED (clutter_actor_get_width (rect)/2);
v1.y = CLUTTER_INT_TO_FIXED (clutter_actor_get_height (rect)/2);
v1.x = clutter_actor_get_widthu (rect)/2;
v1.y = clutter_actor_get_heightu (rect)/2;
v1.z = 0;
clutter_actor_apply_transform_to_point (rect, &v1, &v2);
clutter_actor_set_position (p[4],
CLUTTER_FIXED_TO_INT (v2.x) -
clutter_actor_get_width (p[4])/2,
CLUTTER_FIXED_TO_INT (v2.y) -
clutter_actor_get_height (p[4])/2);
clutter_actor_set_positionu (p[4],
v2.x - clutter_actor_get_widthu (p[4])/2,
v2.y - clutter_actor_get_heightu (p[4])/2);
}
#define M(m,row,col) (m)[col*4+row]
@ -127,7 +125,7 @@ on_event (ClutterStage *stage,
gint x, y;
gint i;
ClutterActorBox box1, box2;
ClutterFixed xp, yp;
ClutterUnit xp, yp;
i = find_handle_index (dragging);
@ -139,25 +137,24 @@ on_event (ClutterStage *stage,
clutter_actor_get_allocation_box (dragging, &box1);
clutter_actor_get_allocation_box (rect, &box2);
xp = CLUTTER_INT_TO_FIXED (x-3) - box1.x1;
yp = CLUTTER_INT_TO_FIXED (y-3) - box1.y1;
xp = CLUTTER_UNITS_FROM_DEVICE (x - 3) - box1.x1;
yp = CLUTTER_UNITS_FROM_DEVICE (y - 3) - box1.y1;
if (i == 4)
{
g_debug ("moving box by %f, %f",
CLUTTER_FIXED_TO_FLOAT (xp),
CLUTTER_FIXED_TO_FLOAT (yp));
CLUTTER_UNITS_TO_FLOAT (xp),
CLUTTER_UNITS_TO_FLOAT (yp));
clutter_actor_move_by (rect,
CLUTTER_FIXED_TO_INT(xp),
CLUTTER_FIXED_TO_INT(yp));
clutter_actor_move_byu (rect, xp, yp);
}
else
{
g_debug ("adjusting box by %f, %f, handle %d",
CLUTTER_FIXED_TO_FLOAT (xp),
CLUTTER_FIXED_TO_FLOAT (yp),
CLUTTER_UNITS_TO_FLOAT (xp),
CLUTTER_UNITS_TO_FLOAT (yp),
i);
switch (i)
{
case 0: