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* clutter/clutter-texture.c: (clutter_texture_get_preferred_width),

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(clutter_texture_get_preferred_height):
        Maintain aspect ratio with natural width/height when for_width/height
        are specified
This commit is contained in:
Chris Lord 2008-06-17 14:45:33 +00:00
parent 2dbbee28d5
commit b592efcf99
2 changed files with 35 additions and 10 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2008-06-17 Chris Lord <chris@openedhand.com>
* clutter/clutter-texture.c: (clutter_texture_get_preferred_width),
(clutter_texture_get_preferred_height):
Maintain aspect ratio with natural width/height when for_width/height
are specified
2008-06-17 Matthew Allum <mallum@openedhand.com> 2008-06-17 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-actor.c: * clutter/clutter-actor.c:

38
clutter/clutter-texture.c
View File

@ -330,10 +330,6 @@ clutter_texture_get_preferred_width (ClutterActor *self,
ClutterTexture *texture = CLUTTER_TEXTURE (self); ClutterTexture *texture = CLUTTER_TEXTURE (self);
ClutterTexturePrivate *priv = texture->priv; ClutterTexturePrivate *priv = texture->priv;
/* FIXME If we wanted to be clever here, we could set the natural
* width to preserve aspect ratio considering for_height
*/
/* Min request is always 0 since we can scale down or clip */ /* Min request is always 0 since we can scale down or clip */
if (min_width_p) if (min_width_p)
*min_width_p = 0; *min_width_p = 0;
@ -341,7 +337,20 @@ clutter_texture_get_preferred_width (ClutterActor *self,
if (priv->sync_actor_size) if (priv->sync_actor_size)
{ {
if (natural_width_p) if (natural_width_p)
*natural_width_p = CLUTTER_UNITS_FROM_DEVICE (priv->width); {
if ((for_height < 0) || (priv->height <= 0))
*natural_width_p = CLUTTER_UNITS_FROM_DEVICE (priv->width);
else
{
/* Set the natural width so as to preserve the aspect ratio */
ClutterFixed ratio =
clutter_qdivx (CLUTTER_INT_TO_FIXED (priv->width),
CLUTTER_INT_TO_FIXED (priv->height));
*natural_width_p = CLUTTER_UNITS_FROM_FIXED (
clutter_qmulx (ratio, CLUTTER_UNITS_TO_FIXED (for_height)));
}
}
} }
else else
{ {
@ -359,10 +368,6 @@ clutter_texture_get_preferred_height (ClutterActor *self,
ClutterTexture *texture = CLUTTER_TEXTURE (self); ClutterTexture *texture = CLUTTER_TEXTURE (self);
ClutterTexturePrivate *priv = texture->priv; ClutterTexturePrivate *priv = texture->priv;
/* FIXME If we wanted to be clever here, we could set the natural
* height to preserve aspect ratio considering for_width
*/
/* Min request is always 0 since we can scale down or clip */ /* Min request is always 0 since we can scale down or clip */
if (min_height_p) if (min_height_p)
*min_height_p = 0; *min_height_p = 0;
@ -370,7 +375,20 @@ clutter_texture_get_preferred_height (ClutterActor *self,
if (priv->sync_actor_size) if (priv->sync_actor_size)
{ {
if (natural_height_p) if (natural_height_p)
*natural_height_p = CLUTTER_UNITS_FROM_DEVICE (priv->height); {
if ((for_width < 0) || (priv->width <= 0))
*natural_height_p = CLUTTER_UNITS_FROM_DEVICE (priv->height);
else
{
/* Set the natural height so as to preserve the aspect ratio */
ClutterFixed ratio =
clutter_qdivx (CLUTTER_INT_TO_FIXED (priv->height),
CLUTTER_INT_TO_FIXED (priv->width));
*natural_height_p = CLUTTER_UNITS_FROM_FIXED (
clutter_qmulx (ratio, CLUTTER_UNITS_TO_FIXED (for_width)));
}
}
} }
else else
{ {