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Port remaining layout managers to the new child iteration API

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TableLayout and FlowLayout now use the ClutterActor API for iterating
over the children of an actor.
This commit is contained in:
Emmanuele Bassi 2011-12-18 11:26:29 +00:00
parent 9c9ab42060
commit 7e377b5aee
2 changed files with 82 additions and 60 deletions
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38
clutter/clutter-flow-layout.c
View File

@ -202,11 +202,11 @@ clutter_flow_layout_get_preferred_width (ClutterLayoutManager *manager,
gfloat *nat_width_p)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
GList *l, *children = clutter_container_get_children (container);
gint n_rows, line_item_count, line_count;
gfloat total_min_width, total_natural_width;
gfloat line_min_width, line_natural_width;
gfloat max_min_width, max_natural_width;
ClutterActor *actor, *child;
gfloat item_y;
n_rows = get_rows (CLUTTER_FLOW_LAYOUT (manager), for_height);
@ -222,6 +222,8 @@ clutter_flow_layout_get_preferred_width (ClutterLayoutManager *manager,
item_y = 0;
actor = CLUTTER_ACTOR (container);
/* clear the line width arrays */
if (priv->line_min != NULL)
g_array_free (priv->line_min, TRUE);
@ -236,14 +238,15 @@ clutter_flow_layout_get_preferred_width (ClutterLayoutManager *manager,
sizeof (gfloat),
16);
if (children)
if (clutter_actor_get_n_children (actor) != 0)
line_count = 1;
max_min_width = max_natural_width = 0;
for (l = children; l != NULL; l = l->next)
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
gfloat child_min, child_natural;
gfloat new_y, item_height;
@ -301,8 +304,6 @@ clutter_flow_layout_get_preferred_width (ClutterLayoutManager *manager,
}
}
g_list_free (children);
priv->col_width = max_natural_width;
if (priv->max_col_width > 0 && priv->col_width > priv->max_col_width)
@ -379,11 +380,11 @@ clutter_flow_layout_get_preferred_height (ClutterLayoutManager *manager,
gfloat *nat_height_p)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
GList *l, *children = clutter_container_get_children (container);
gint n_columns, line_item_count, line_count;
gfloat total_min_height, total_natural_height;
gfloat line_min_height, line_natural_height;
gfloat max_min_height, max_natural_height;
ClutterActor *actor, *child;
gfloat item_x;
n_columns = get_columns (CLUTTER_FLOW_LAYOUT (manager), for_width);
@ -399,6 +400,8 @@ clutter_flow_layout_get_preferred_height (ClutterLayoutManager *manager,
item_x = 0;
actor = CLUTTER_ACTOR (container);
/* clear the line height arrays */
if (priv->line_min != NULL)
g_array_free (priv->line_min, TRUE);
@ -413,14 +416,15 @@ clutter_flow_layout_get_preferred_height (ClutterLayoutManager *manager,
sizeof (gfloat),
16);
if (children)
if (clutter_actor_get_n_children (actor) != 0)
line_count = 1;
max_min_height = max_natural_height = 0;
for (l = children; l != NULL; l = l->next)
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
gfloat child_min, child_natural;
gfloat new_x, item_width;
@ -479,8 +483,6 @@ clutter_flow_layout_get_preferred_height (ClutterLayoutManager *manager,
}
}
g_list_free (children);
priv->row_height = max_natural_height;
if (priv->max_row_height > 0 && priv->row_height > priv->max_row_height)
@ -555,7 +557,7 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
ClutterAllocationFlags flags)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
GList *l, *children = clutter_container_get_children (container);
ClutterActor *actor, *child;
gfloat x_off, y_off;
gfloat avail_width, avail_height;
gfloat item_x, item_y;
@ -563,7 +565,8 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
gint items_per_line;
gint line_index;
if (children == NULL)
actor = CLUTTER_ACTOR (container);
if (clutter_actor_get_n_children (actor) == 0)
return;
clutter_actor_box_get_origin (allocation, &x_off, &y_off);
@ -593,9 +596,10 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
line_item_count = 0;
line_index = 0;
for (l = children; l != NULL; l = l->next)
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterActorBox child_alloc;
gfloat item_width, item_height;
gfloat new_x, new_y;
@ -703,8 +707,6 @@ clutter_flow_layout_allocate (ClutterLayoutManager *manager,
line_item_count += 1;
}
g_list_free (children);
}
static void

104
clutter/clutter-table-layout.c
View File

@ -708,29 +708,35 @@ clutter_table_layout_set_container (ClutterLayoutManager *layout,
static void
update_row_col (ClutterTableLayout *layout,
ClutterContainer *container)
ClutterContainer *container)
{
ClutterTableLayoutPrivate *priv = layout->priv;
ClutterLayoutManager *manager = CLUTTER_LAYOUT_MANAGER (layout);
GList *children, *l;
ClutterActor *actor, *child;
gint n_cols, n_rows;
n_cols = n_rows = 0;
children = container ? clutter_container_get_children (container) : NULL;
for (l = children; l; l = g_list_next (l))
if (container == NULL)
goto out;
actor = CLUTTER_ACTOR (container);
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterTableChild *meta;
meta = CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager, container, child));
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
n_cols = MAX (n_cols, meta->col + meta->col_span);
n_rows = MAX (n_rows, meta->row + meta->row_span);
}
g_list_free (children);
out:
priv->n_cols = n_cols;
priv->n_rows = n_rows;
@ -743,9 +749,9 @@ calculate_col_widths (ClutterTableLayout *self,
{
ClutterTableLayoutPrivate *priv = self->priv;
ClutterLayoutManager *manager = CLUTTER_LAYOUT_MANAGER (self);
ClutterActor *actor, *child;
gint i;
DimensionData *columns;
GList *l, *children;
update_row_col (self, container);
g_array_set_size (priv->columns, 0);
@ -757,12 +763,13 @@ calculate_col_widths (ClutterTableLayout *self,
for (i = 0; i < priv->n_cols; i++)
columns[i].visible = FALSE;
children = clutter_container_get_children (container);
actor = CLUTTER_ACTOR (container);
/* STAGE ONE: calculate column widths for non-spanned children */
for (l = children; l; l = g_list_next (l))
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterTableChild *meta;
DimensionData *col;
gfloat c_min, c_pref;
@ -770,8 +777,10 @@ calculate_col_widths (ClutterTableLayout *self,
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (ClutterTableChild *)
clutter_layout_manager_get_child_meta (manager, container, child);
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->col_span > 1)
continue;
@ -792,9 +801,10 @@ calculate_col_widths (ClutterTableLayout *self,
}
/* STAGE TWO: take spanning children into account */
for (l = children; l; l = g_list_next (l))
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterTableChild *meta;
DimensionData *col;
gfloat c_min, c_pref;
@ -805,8 +815,10 @@ calculate_col_widths (ClutterTableLayout *self,
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (ClutterTableChild *)
clutter_layout_manager_get_child_meta (manager, container, child);
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->col_span < 2)
continue;
@ -890,7 +902,6 @@ calculate_col_widths (ClutterTableLayout *self,
}
g_list_free (children);
/* calculate final widths */
if (for_width >= 0)
@ -901,6 +912,7 @@ calculate_col_widths (ClutterTableLayout *self,
min_width = 0;
pref_width = 0;
n_expand = 0;
for (i = 0; i < self->priv->n_cols; i++)
{
pref_width += columns[i].pref_size;
@ -908,6 +920,7 @@ calculate_col_widths (ClutterTableLayout *self,
if (columns[i].expand)
n_expand++;
}
pref_width += priv->col_spacing * (priv->n_cols - 1);
min_width += priv->col_spacing * (priv->n_cols - 1);
@ -1003,7 +1016,7 @@ calculate_row_heights (ClutterTableLayout *self,
{
ClutterTableLayoutPrivate *priv = self->priv;
ClutterLayoutManager *manager = CLUTTER_LAYOUT_MANAGER (self);
GList *l, *children;
ClutterActor *actor, *child;
gint i;
DimensionData *rows, *columns;
@ -1019,11 +1032,13 @@ calculate_row_heights (ClutterTableLayout *self,
for (i = 0; i < priv->n_rows; i++)
rows[i].visible = FALSE;
children = clutter_container_get_children (container);
actor = CLUTTER_ACTOR (container);
/* STAGE ONE: calculate row heights for non-spanned children */
for (l = children; l; l = g_list_next (l))
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterTableChild *meta;
DimensionData *row;
gfloat c_min, c_pref;
@ -1031,8 +1046,10 @@ calculate_row_heights (ClutterTableLayout *self,
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (ClutterTableChild *)
clutter_layout_manager_get_child_meta (manager, container, child);
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->row_span > 1)
continue;
@ -1053,12 +1070,11 @@ calculate_row_heights (ClutterTableLayout *self,
row->expand = MAX (row->expand, meta->y_expand);
}
/* STAGE TWO: take spanning children into account */
for (l = children; l; l = g_list_next (l))
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = l->data;
ClutterTableChild *meta;
gfloat c_min, c_pref;
gfloat min_height, pref_height;
@ -1068,8 +1084,10 @@ calculate_row_heights (ClutterTableLayout *self,
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (ClutterTableChild *)
clutter_layout_manager_get_child_meta (manager, container, child);
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->row_span < 2)
continue;
@ -1165,8 +1183,6 @@ calculate_row_heights (ClutterTableLayout *self,
}
g_list_free (children);
/* calculate final heights */
if (for_height >= 0)
{
@ -1176,6 +1192,7 @@ calculate_row_heights (ClutterTableLayout *self,
min_height = 0;
pref_height = 0;
n_expand = 0;
for (i = 0; i < self->priv->n_rows; i++)
{
pref_height += rows[i].pref_size;
@ -1183,6 +1200,7 @@ calculate_row_heights (ClutterTableLayout *self,
if (rows[i].expand)
n_expand++;
}
pref_height += priv->row_spacing * (priv->n_rows - 1);
min_height += priv->row_spacing * (priv->n_rows - 1);
@ -1387,7 +1405,7 @@ clutter_table_layout_allocate (ClutterLayoutManager *layout,
{
ClutterTableLayout *self = CLUTTER_TABLE_LAYOUT (layout);
ClutterTableLayoutPrivate *priv = self->priv;
GList *list, *children;
ClutterActor *actor, *child;
gint row_spacing, col_spacing;
gint i;
DimensionData *rows, *columns;
@ -1396,8 +1414,9 @@ clutter_table_layout_allocate (ClutterLayoutManager *layout,
if (priv->n_cols < 1 || priv->n_rows < 1)
return;
children = clutter_container_get_children (container);
if (children == NULL)
actor = CLUTTER_ACTOR (container);
if (clutter_actor_get_n_children (actor) == 0)
return;
col_spacing = (priv->col_spacing);
@ -1410,9 +1429,10 @@ clutter_table_layout_allocate (ClutterLayoutManager *layout,
rows = (DimensionData *) priv->rows->data;
columns = (DimensionData *) priv->columns->data;
for (list = children; list; list = g_list_next (list))
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActor *child = list->data;
gint row, col, row_span, col_span;
gint col_width, row_height;
ClutterTableChild *meta;
@ -1424,8 +1444,10 @@ clutter_table_layout_allocate (ClutterLayoutManager *layout,
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (ClutterTableChild *)
clutter_layout_manager_get_child_meta (layout, priv->container, child);
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (layout,
container,
child));
/* get child properties */
col = meta->col;
@ -1560,8 +1582,6 @@ clutter_table_layout_allocate (ClutterLayoutManager *layout,
do_allocate:
clutter_actor_allocate (child, &childbox, flags);
}
g_list_free (children);
}
static ClutterAlpha *