mirror of
https://github.com/brl/mutter.git
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box-layout: Honour :text-direction
During size request and allocation a ClutterBoxLayout should honour the ClutterActor:text-direction property, and change the order of the children.
This commit is contained in:
Emmanuele Bassi
parent
adab87b520
commit
4bc3d02ebd
@ -521,14 +521,16 @@ clutter_box_layout_set_container (ClutterLayoutManager *layout,
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static void
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get_preferred_width (ClutterBoxLayout *self,
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const GList *children,
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ClutterContainer *container,
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GList *children,
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gfloat for_height,
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gfloat *min_width_p,
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gfloat *natural_width_p)
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{
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ClutterBoxLayoutPrivate *priv = self->priv;
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gint n_children = 0;
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const GList *l;
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gboolean is_rtl;
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GList *l;
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if (min_width_p)
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*min_width_p = 0;
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@ -536,7 +538,19 @@ get_preferred_width (ClutterBoxLayout *self,
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if (natural_width_p)
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*natural_width_p = 0;
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for (l = children; l != NULL; l = l->next)
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if (!priv->is_vertical)
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{
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ClutterTextDirection text_dir;
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text_dir = clutter_actor_get_text_direction (CLUTTER_ACTOR (container));
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is_rtl = (text_dir == CLUTTER_TEXT_DIRECTION_RTL) ? TRUE : FALSE;
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}
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else
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is_rtl = FALSE;
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for (l = (is_rtl) ? g_list_last (children) : children;
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l != NULL;
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l = (is_rtl) ? l->prev : l->next)
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{
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ClutterActor *child = l->data;
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gfloat child_min = 0, child_nat = 0;
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@ -584,14 +598,16 @@ get_preferred_width (ClutterBoxLayout *self,
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static void
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get_preferred_height (ClutterBoxLayout *self,
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const GList *children,
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ClutterContainer *container,
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GList *children,
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gfloat for_height,
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gfloat *min_height_p,
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gfloat *natural_height_p)
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{
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ClutterBoxLayoutPrivate *priv = self->priv;
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gint n_children = 0;
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const GList *l;
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gboolean is_rtl;
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GList *l;
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if (min_height_p)
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*min_height_p = 0;
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@ -599,7 +615,19 @@ get_preferred_height (ClutterBoxLayout *self,
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if (natural_height_p)
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*natural_height_p = 0;
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for (l = children; l != NULL; l = l->next)
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if (!priv->is_vertical)
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{
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ClutterTextDirection text_dir;
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text_dir = clutter_actor_get_text_direction (CLUTTER_ACTOR (container));
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is_rtl = (text_dir == CLUTTER_TEXT_DIRECTION_RTL) ? TRUE : FALSE;
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}
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else
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is_rtl = FALSE;
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for (l = (is_rtl) ? g_list_last (children) : children;
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l != NULL;
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l = (is_rtl) ? l->prev : l->next)
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{
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ClutterActor *child = l->data;
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gfloat child_min = 0, child_nat = 0;
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@ -644,6 +672,78 @@ get_preferred_height (ClutterBoxLayout *self,
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}
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}
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static void
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allocate_box_child (ClutterBoxLayout *self,
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ClutterContainer *container,
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ClutterActor *child,
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gfloat *position,
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gfloat avail_width,
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gfloat avail_height,
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gfloat extra_space,
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ClutterAllocationFlags flags)
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{
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ClutterBoxLayoutPrivate *priv = self->priv;
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ClutterActorBox child_box;
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ClutterBoxChild *box_child;
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ClutterLayoutMeta *meta;
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gfloat child_nat;
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if (!CLUTTER_ACTOR_IS_VISIBLE (child))
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return;
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meta = clutter_layout_manager_get_child_meta (CLUTTER_LAYOUT_MANAGER (self),
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container,
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child);
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box_child = CLUTTER_BOX_CHILD (meta);
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if (priv->is_vertical)
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{
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clutter_actor_get_preferred_height (child, avail_width,
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NULL, &child_nat);
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child_box.y1 = floorf (*position + 0.5);
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if (box_child->expand)
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child_box.y2 = floorf (*position + child_nat + extra_space + 0.5);
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else
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child_box.y2 = floorf (*position + child_nat + 0.5);
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child_box.x1 = 0;
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child_box.x2 = floorf (avail_width + 0.5);
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allocate_fill (child, &child_box, box_child);
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clutter_actor_allocate (child, &child_box, flags);
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if (box_child->expand)
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*position += (child_nat + priv->spacing + extra_space);
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else
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*position += (child_nat + priv->spacing);
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}
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else
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{
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clutter_actor_get_preferred_width (child, avail_height,
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NULL, &child_nat);
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child_box.x1 = floorf (*position + 0.5);
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if (box_child->expand)
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child_box.x2 = floorf (*position + child_nat + extra_space + 0.5);
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else
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child_box.x2 = floorf (*position + child_nat + 0.5);
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child_box.y1 = 0;
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child_box.y2 = floorf (avail_height + 0.5);
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allocate_fill (child, &child_box, box_child);
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clutter_actor_allocate (child, &child_box, flags);
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if (box_child->expand)
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*position += (child_nat + priv->spacing + extra_space);
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else
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*position += (child_nat + priv->spacing);
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}
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}
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static void
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clutter_box_layout_get_preferred_width (ClutterLayoutManager *layout,
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ClutterContainer *container,
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@ -656,7 +756,7 @@ clutter_box_layout_get_preferred_width (ClutterLayoutManager *layout,
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children = clutter_container_get_children (container);
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get_preferred_width (self, children, for_height,
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get_preferred_width (self, container, children, for_height,
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min_width_p,
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natural_width_p);
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@ -675,7 +775,7 @@ clutter_box_layout_get_preferred_height (ClutterLayoutManager *layout,
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children = clutter_container_get_children (container);
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get_preferred_height (self, children, for_width,
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get_preferred_height (self, container, children, for_width,
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min_height_p,
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natural_height_p);
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@ -690,9 +790,10 @@ clutter_box_layout_allocate (ClutterLayoutManager *layout,
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{
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ClutterBoxLayoutPrivate *priv = CLUTTER_BOX_LAYOUT (layout)->priv;
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gfloat avail_width, avail_height, pref_width, pref_height;
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GList *children, *l;
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gint n_expand_children, extra_space;
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GList *children, *l;
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gfloat position;
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gboolean is_rtl;
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children = clutter_container_get_children (container);
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if (children == NULL)
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@ -703,6 +804,7 @@ clutter_box_layout_allocate (ClutterLayoutManager *layout,
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if (priv->is_vertical)
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{
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get_preferred_height (CLUTTER_BOX_LAYOUT (layout),
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container,
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children, avail_width,
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NULL,
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&pref_height);
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@ -712,6 +814,7 @@ clutter_box_layout_allocate (ClutterLayoutManager *layout,
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else
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{
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get_preferred_width (CLUTTER_BOX_LAYOUT (layout),
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container,
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children, avail_height,
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NULL,
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&pref_width);
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@ -752,69 +855,44 @@ clutter_box_layout_allocate (ClutterLayoutManager *layout,
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position = 0;
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if (!priv->is_vertical)
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{
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ClutterTextDirection text_dir;
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text_dir = clutter_actor_get_text_direction (CLUTTER_ACTOR (container));
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is_rtl = (text_dir == CLUTTER_TEXT_DIRECTION_RTL) ? TRUE : FALSE;
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}
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else
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is_rtl = FALSE;
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if (is_rtl)
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{
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for (l = (priv->is_pack_start) ? children : g_list_last (children);
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l != NULL;
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l = (priv->is_pack_start) ? l->next : l->prev)
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{
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ClutterActor *child = l->data;
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allocate_box_child (CLUTTER_BOX_LAYOUT (layout), container, child,
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&position,
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avail_width,
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avail_height,
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extra_space, flags);
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}
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}
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else
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{
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for (l = (priv->is_pack_start) ? g_list_last (children) : children;
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l != NULL;
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l = (priv->is_pack_start) ? l->prev : l->next)
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{
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ClutterActor *child = l->data;
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ClutterActorBox child_box;
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ClutterBoxChild *box_child;
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ClutterLayoutMeta *meta;
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gfloat child_nat;
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if (!CLUTTER_ACTOR_IS_VISIBLE (child))
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continue;
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meta = clutter_layout_manager_get_child_meta (layout,
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container,
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child);
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box_child = CLUTTER_BOX_CHILD (meta);
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if (priv->is_vertical)
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{
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clutter_actor_get_preferred_height (child, avail_width,
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NULL, &child_nat);
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child_box.y1 = ceilf (position);
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if (box_child->expand)
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child_box.y2 = ceilf (position + child_nat + extra_space);
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else
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child_box.y2 = ceilf (position + child_nat);
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child_box.x1 = 0;
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child_box.x2 = ceilf (avail_width);
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allocate_fill (child, &child_box, box_child);
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clutter_actor_allocate (child, &child_box, flags);
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if (box_child->expand)
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position += (child_nat + priv->spacing + extra_space);
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else
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position += (child_nat + priv->spacing);
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}
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else
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{
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clutter_actor_get_preferred_width (child, avail_height,
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NULL, &child_nat);
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child_box.x1 = ceilf (position);
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if (box_child->expand)
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child_box.x2 = ceilf (position + child_nat + extra_space);
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else
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child_box.x2 = ceilf (position + child_nat);
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child_box.y1 = 0;
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child_box.y2 = ceilf (avail_height);
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allocate_fill (child, &child_box, box_child);
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clutter_actor_allocate (child, &child_box, flags);
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if (box_child->expand)
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position += (child_nat + priv->spacing + extra_space);
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else
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position += (child_nat + priv->spacing);
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allocate_box_child (CLUTTER_BOX_LAYOUT (layout), container, child,
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&position,
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avail_width,
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avail_height,
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extra_space, flags);
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}
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}
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