/* Find requested selection target depending of current selection */
static ClutterActor* _xfdashboard_workspace_selector_focusable_find_selection(XfdashboardFocusable *inFocusable,
ClutterActor *inSelection,
XfdashboardSelectionTarget inDirection)
{
XfdashboardWorkspaceSelector *self;
XfdashboardWorkspaceSelectorPrivate *priv;
XfdashboardLiveWorkspace *selection;
ClutterActor *newSelection;
g_return_val_if_fail(XFDASHBOARD_IS_FOCUSABLE(inFocusable), NULL);
g_return_val_if_fail(XFDASHBOARD_IS_WORKSPACE_SELECTOR(inFocusable), NULL);
g_return_val_if_fail(!inSelection || XFDASHBOARD_IS_LIVE_WORKSPACE(inSelection), NULL);
self=XFDASHBOARD_WORKSPACE_SELECTOR(inFocusable);
priv=self->priv;
newSelection=NULL;
selection=NULL;
/* Find actor for current active workspace which is also the current selection */
if(priv->activeWorkspace)
{
selection=_xfdashboard_workspace_selector_find_actor_for_workspace(self, priv->activeWorkspace);
}
if(!selection) return(NULL);
/* If there is nothing selected return currently determined actor which is
* the current active workspace.
*/
if(!inSelection)
{
g_debug("No selection at %s, so select first child %s for direction %u",
G_OBJECT_TYPE_NAME(self),
selection ? G_OBJECT_TYPE_NAME(selection) : "<nil>",
inDirection);
return(CLUTTER_ACTOR(selection));
}
/* Check that selection is a child of this actor otherwise return NULL */
if(!xfdashboard_actor_contains_child_deep(CLUTTER_ACTOR(self), inSelection))
{
ClutterActor *parent;
parent=clutter_actor_get_parent(inSelection);
g_warning(_("Cannot lookup selection target at %s because %s is a child of %s"),
G_OBJECT_TYPE_NAME(self),
G_OBJECT_TYPE_NAME(inSelection),
parent ? G_OBJECT_TYPE_NAME(parent) : "<nil>");
return(NULL);
}
/* Find target selection */
switch(inDirection)
{
case XFDASHBOARD_SELECTION_TARGET_LEFT:
if(priv->orientation==CLUTTER_ORIENTATION_HORIZONTAL)
{
newSelection=clutter_actor_get_previous_sibling(CLUTTER_ACTOR(selection));
}
break;
case XFDASHBOARD_SELECTION_TARGET_UP:
if(priv->orientation==CLUTTER_ORIENTATION_VERTICAL)
{
newSelection=clutter_actor_get_previous_sibling(CLUTTER_ACTOR(selection));
}
break;
case XFDASHBOARD_SELECTION_TARGET_RIGHT:
if(priv->orientation==CLUTTER_ORIENTATION_HORIZONTAL)
{
newSelection=clutter_actor_get_next_sibling(CLUTTER_ACTOR(selection));
}
break;
case XFDASHBOARD_SELECTION_TARGET_DOWN:
if(priv->orientation==CLUTTER_ORIENTATION_VERTICAL)
{
newSelection=clutter_actor_get_next_sibling(CLUTTER_ACTOR(selection));
}
break;
case XFDASHBOARD_SELECTION_TARGET_FIRST:
case XFDASHBOARD_SELECTION_TARGET_PAGE_UP:
case XFDASHBOARD_SELECTION_TARGET_PAGE_LEFT:
if(inDirection==XFDASHBOARD_SELECTION_TARGET_FIRST ||
(inDirection==XFDASHBOARD_SELECTION_TARGET_PAGE_UP && priv->orientation==CLUTTER_ORIENTATION_VERTICAL) ||
(inDirection==XFDASHBOARD_SELECTION_TARGET_PAGE_LEFT && priv->orientation==CLUTTER_ORIENTATION_HORIZONTAL))
{
newSelection=clutter_actor_get_first_child(CLUTTER_ACTOR(self));
}
break;
case XFDASHBOARD_SELECTION_TARGET_LAST:
case XFDASHBOARD_SELECTION_TARGET_PAGE_DOWN:
case XFDASHBOARD_SELECTION_TARGET_PAGE_RIGHT:
if(inDirection==XFDASHBOARD_SELECTION_TARGET_LAST ||
(inDirection==XFDASHBOARD_SELECTION_TARGET_PAGE_DOWN && priv->orientation==CLUTTER_ORIENTATION_VERTICAL) ||
(inDirection==XFDASHBOARD_SELECTION_TARGET_PAGE_RIGHT && priv->orientation==CLUTTER_ORIENTATION_HORIZONTAL))
{
newSelection=clutter_actor_get_last_child(CLUTTER_ACTOR(self));
}
break;
case XFDASHBOARD_SELECTION_TARGET_NEXT:
newSelection=clutter_actor_get_next_sibling(CLUTTER_ACTOR(selection));
if(!newSelection) newSelection=clutter_actor_get_previous_sibling(CLUTTER_ACTOR(selection));
break;
default:
{
gchar *valueName;
valueName=xfdashboard_get_enum_value_name(XFDASHBOARD_TYPE_SELECTION_TARGET, inDirection);
g_critical(_("Focusable object %s does not handle selection direction of type %s."),
G_OBJECT_TYPE_NAME(self),
valueName);
g_free(valueName);
}
break;
}
/* If new selection could be found override current selection with it */
if(newSelection && XFDASHBOARD_IS_LIVE_WORKSPACE(newSelection))
{
selection=XFDASHBOARD_LIVE_WORKSPACE(newSelection);
}
/* Return new selection found */
g_debug("Selecting %s at %s for current selection %s in direction %u",
selection ? G_OBJECT_TYPE_NAME(selection) : "<nil>",
G_OBJECT_TYPE_NAME(self),
inSelection ? G_OBJECT_TYPE_NAME(inSelection) : "<nil>",
inDirection);
return(CLUTTER_ACTOR(selection));
}
static void
st_box_layout_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StBoxLayoutPrivate *priv = ST_BOX_LAYOUT (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorBox content_box;
gfloat avail_width, avail_height, min_width, natural_width, min_height, natural_height;
gfloat position, next_position;
gint n_expand_children = 0, i;
gfloat expand_amount, shrink_amount;
BoxChildShrink *shrinks = NULL;
// Home-made logical xor
gboolean flip = (!(st_widget_get_direction (ST_WIDGET (actor)) == ST_TEXT_DIRECTION_RTL) != !priv->is_align_end);
gboolean reverse_order = (!priv->is_align_end != !priv->is_pack_start);
ClutterActor *child;
clutter_actor_set_allocation (actor, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
avail_width = content_box.x2 - content_box.x1;
avail_height = content_box.y2 - content_box.y1;
get_content_preferred_width (ST_BOX_LAYOUT (actor), avail_height,
&min_width, &natural_width);
get_content_preferred_height (ST_BOX_LAYOUT (actor), MAX (avail_width, min_width),
&min_height, &natural_height);
/* update adjustments for scrolling */
if (priv->vadjustment)
{
gdouble prev_value;
g_object_set (G_OBJECT (priv->vadjustment),
"lower", 0.0,
"upper", MAX (min_height, avail_height),
"page-size", avail_height,
"step-increment", avail_height / 6,
"page-increment", avail_height - avail_height / 6,
NULL);
prev_value = st_adjustment_get_value (priv->vadjustment);
st_adjustment_set_value (priv->vadjustment, prev_value);
}
if (priv->hadjustment)
{
gdouble prev_value;
g_object_set (G_OBJECT (priv->hadjustment),
"lower", 0.0,
"upper", MAX (min_width, avail_width),
"page-size", avail_width,
"step-increment", avail_width / 6,
"page-increment", avail_width - avail_width / 6,
NULL);
prev_value = st_adjustment_get_value (priv->hadjustment);
st_adjustment_set_value (priv->hadjustment, prev_value);
}
if (avail_height < min_height)
{
avail_height = min_height;
content_box.y2 = content_box.y1 + avail_height;
}
if (avail_width < min_width)
{
avail_width = min_width;
content_box.x2 = content_box.x1 + avail_width;
}
if (priv->is_vertical)
{
expand_amount = MAX (0, avail_height - natural_height);
shrink_amount = MAX (0, natural_height - avail_height);
}
else
{
expand_amount = MAX (0, avail_width - natural_width);
shrink_amount = MAX (0, natural_width - avail_width);
}
if (expand_amount > 0)
{
/* count the number of children with expand set to TRUE */
n_expand_children = 0;
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
gboolean expand;
if (!CLUTTER_ACTOR_IS_VISIBLE (child) ||
clutter_actor_get_fixed_position_set (child))
continue;
clutter_container_child_get ((ClutterContainer *) actor,
child,
"expand", &expand,
NULL);
if (expand)
n_expand_children++;
}
if (n_expand_children == 0)
expand_amount = 0;
}
else if (shrink_amount > 0)
{
shrinks = compute_shrinks (ST_BOX_LAYOUT (actor),
priv->is_vertical ? avail_width : avail_height,
shrink_amount);
}
if (priv->is_vertical)
{
if (flip)
{
position = content_box.y2;
}
else
{
position = content_box.y1;
}
}
else
{
if (flip)
{
position = content_box.x2;
}
else
{
position = content_box.x1;
}
}
if (reverse_order)
{
child = clutter_actor_get_last_child (actor);
i = clutter_actor_get_n_children (actor) - 1;
}
else
{
child = clutter_actor_get_first_child (actor);
i = 0;
}
gfloat init_padding = (avail_width/2) - (natural_width/2);
while (child != NULL)
{
ClutterActorBox child_box;
gfloat child_min, child_nat, child_allocated;
gboolean xfill, yfill, expand, fixed;
StAlign xalign, yalign;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
goto next_child;
fixed = clutter_actor_get_fixed_position_set (child);
if (fixed)
{
clutter_actor_allocate_preferred_size (child, flags);
goto next_child;
}
clutter_container_child_get ((ClutterContainer*) actor, child,
"x-fill", &xfill,
"y-fill", &yfill,
"x-align", &xalign,
"y-align", &yalign,
"expand", &expand,
NULL);
if (priv->is_vertical)
{
_st_actor_get_preferred_height (child, avail_width, xfill,
&child_min, &child_nat);
}
else
{
_st_actor_get_preferred_width (child, avail_height, yfill,
&child_min, &child_nat);
}
child_allocated = child_nat;
if (expand_amount > 0 && expand)
child_allocated += expand_amount / n_expand_children;
else if (shrink_amount > 0)
child_allocated -= shrinks[i].shrink_amount;
if (flip) {
next_position = position - child_allocated;
}
else {
next_position = position + child_allocated;
}
if (priv->is_vertical)
{
if (flip)
{
child_box.y1 = (int)(0.5 + next_position);
child_box.y2 = (int)(0.5 + position);
}
else
{
child_box.y1 = (int)(0.5 + position);
child_box.y2 = (int)(0.5 + next_position);
}
child_box.x1 = content_box.x1;
child_box.x2 = content_box.x2;
_st_allocate_fill (ST_WIDGET (actor), child, &child_box,
xalign, yalign, xfill, yfill);
clutter_actor_allocate (child, &child_box, flags);
}
else
{
if (flip)
{
child_box.x1 = (int)(0.5 + next_position);
child_box.x2 = (int)(0.5 + position);
}
else
{
child_box.x1 = (int)(0.5 + position);
child_box.x2 = (int)(0.5 + next_position);
}
child_box.y1 = content_box.y1;
child_box.y2 = content_box.y2;
_st_allocate_fill (ST_WIDGET (actor), child, &child_box,
xalign, yalign, xfill, yfill);
clutter_actor_allocate (child, &child_box, flags);
}
if (flip)
position = next_position - priv->spacing;
else
position = next_position + priv->spacing;
next_child:
if (reverse_order)
{
child = clutter_actor_get_previous_sibling (child);
i--;
}
else
{
child = clutter_actor_get_next_sibling (child);
i++;
}
}
if (shrinks)
g_free (shrinks);
}
