static void
st_scroll_view_fade_paint_target (ClutterOffscreenEffect *effect)
{
StScrollViewFade *self = ST_SCROLL_VIEW_FADE (effect);
ClutterOffscreenEffectClass *parent;
CoglHandle material;
gdouble value, lower, upper, page_size;
ClutterActor *vscroll = st_scroll_view_get_vscroll_bar (ST_SCROLL_VIEW (self->actor));
ClutterActor *hscroll = st_scroll_view_get_hscroll_bar (ST_SCROLL_VIEW (self->actor));
gboolean h_scroll_visible, v_scroll_visible;
g_object_get (ST_SCROLL_VIEW (self->actor),
"hscrollbar-visible", &h_scroll_visible,
"vscrollbar-visible", &v_scroll_visible,
NULL);
if (self->program == COGL_INVALID_HANDLE)
goto out;
st_adjustment_get_values (self->vadjustment, &value, &lower, &upper, NULL, NULL, &page_size);
if (self->offset_top_uniform > -1) {
if (value > lower + 0.1)
cogl_program_set_uniform_1f (self->program, self->offset_top_uniform, self->fade_offset);
else
cogl_program_set_uniform_1f (self->program, self->offset_top_uniform, 0.0f);
}
if (self->offset_bottom_uniform > -1) {
if (value < upper - page_size - 0.1)
cogl_program_set_uniform_1f (self->program, self->offset_bottom_uniform, self->fade_offset);
else
cogl_program_set_uniform_1f (self->program, self->offset_bottom_uniform, 0.0f);
}
if (self->tex_uniform > -1)
cogl_program_set_uniform_1i (self->program, self->tex_uniform, 0);
if (self->height_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->height_uniform, clutter_actor_get_height (self->actor));
if (self->width_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->width_uniform, clutter_actor_get_width (self->actor));
if (self->scrollbar_width_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->scrollbar_width_uniform, v_scroll_visible ? clutter_actor_get_width (vscroll) : 0);
if (self->scrollbar_height_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->scrollbar_height_uniform, h_scroll_visible ? clutter_actor_get_height (hscroll) : 0);
if (self->rtl_uniform > -1)
cogl_program_set_uniform_1i (self->program, self->rtl_uniform, (st_widget_get_direction (ST_WIDGET (self->actor)) == ST_TEXT_DIRECTION_RTL));
material = clutter_offscreen_effect_get_target (effect);
cogl_material_set_user_program (material, self->program);
out:
parent = CLUTTER_OFFSCREEN_EFFECT_CLASS (st_scroll_view_fade_parent_class);
parent->paint_target (effect);
}
/**
* _st_get_align_factors:
* @widget: an #StWidget
* @x_align: an #StAlign
* @y_align: an #StAlign
* @x_align_out: (out) (allow-none): @x_align as a #gdouble
* @y_align_out: (out) (allow-none): @y_align as a #gdouble
*
* Converts @x_align and @y_align to #gdouble values. If @widget has
* %ST_TEXT_DIRECTION_RTL, the @x_align_out value will be flipped
* relative to @x_align.
*/
void
_st_get_align_factors (StWidget *widget,
StAlign x_align,
StAlign y_align,
gdouble *x_align_out,
gdouble *y_align_out)
{
if (x_align_out)
{
switch (x_align)
{
case ST_ALIGN_START:
*x_align_out = 0.0;
break;
case ST_ALIGN_MIDDLE:
*x_align_out = 0.5;
break;
case ST_ALIGN_END:
*x_align_out = 1.0;
break;
default:
g_warn_if_reached ();
break;
}
if (st_widget_get_direction (widget) == ST_TEXT_DIRECTION_RTL)
*x_align_out = 1.0 - *x_align_out;
}
if (y_align_out)
{
switch (y_align)
{
case ST_ALIGN_START:
*y_align_out = 0.0;
break;
case ST_ALIGN_MIDDLE:
*y_align_out = 0.5;
break;
case ST_ALIGN_END:
*y_align_out = 1.0;
break;
default:
g_warn_if_reached ();
break;
}
}
}
static void
st_scroll_view_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
ClutterActorBox content_box, child_box;
ClutterActorClass *parent_parent_class;
gfloat avail_width, avail_height, sb_width, sb_height;
gboolean hscrollbar_visible, vscrollbar_visible;
StScrollViewPrivate *priv = ST_SCROLL_VIEW (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
/* Chain up to the parent's parent class
*
* We do this because we do not want StBin to allocate the child, as we
* give it a different allocation later, depending on whether the scrollbars
* are visible
*/
parent_parent_class
= g_type_class_peek_parent (st_scroll_view_parent_class);
CLUTTER_ACTOR_CLASS (parent_parent_class)->
allocate (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;
if (clutter_actor_get_request_mode (actor) == CLUTTER_REQUEST_HEIGHT_FOR_WIDTH)
{
sb_width = get_scrollbar_width (ST_SCROLL_VIEW (actor), -1);
sb_height = get_scrollbar_height (ST_SCROLL_VIEW (actor), sb_width);
}
else
{
sb_height = get_scrollbar_height (ST_SCROLL_VIEW (actor), -1);
sb_width = get_scrollbar_width (ST_SCROLL_VIEW (actor), sb_height);
}
/* Determine what scrollbars are visible. The basic idea of the
* handling of an automatic scrollbars is that we start off with the
* assumption that we don't need any scrollbars, see if that works,
* and if not add horizontal and vertical scrollbars until we are no
* longer overflowing.
*/
if (priv->child)
{
gfloat child_min_width;
gfloat child_min_height;
clutter_actor_get_preferred_width (priv->child, -1,
&child_min_width, NULL);
if (priv->vscrollbar_policy == GTK_POLICY_AUTOMATIC)
{
if (priv->hscrollbar_policy == GTK_POLICY_AUTOMATIC)
{
/* Pass one, try without a vertical scrollbar */
clutter_actor_get_preferred_height (priv->child, avail_width, &child_min_height, NULL);
vscrollbar_visible = child_min_height > avail_height;
hscrollbar_visible = child_min_width > avail_width - (vscrollbar_visible ? sb_width : 0);
vscrollbar_visible = child_min_height > avail_height - (hscrollbar_visible ? sb_height : 0);
/* Pass two - if we needed a vertical scrollbar, get a new preferred height */
if (vscrollbar_visible)
{
clutter_actor_get_preferred_height (priv->child, MAX (avail_width - sb_width, 0),
&child_min_height, NULL);
hscrollbar_visible = child_min_width > avail_width - sb_width;
}
}
else
{
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
/* try without a vertical scrollbar */
clutter_actor_get_preferred_height (priv->child, avail_width, &child_min_height, NULL);
vscrollbar_visible = child_min_height > avail_height - (hscrollbar_visible ? sb_height : 0);
}
}
else
{
vscrollbar_visible = priv->vscrollbar_policy != GTK_POLICY_NEVER;
if (priv->hscrollbar_policy == GTK_POLICY_AUTOMATIC)
hscrollbar_visible = child_min_width > avail_height - (vscrollbar_visible ? 0 : sb_width);
else
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
}
}
else
{
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
vscrollbar_visible = priv->vscrollbar_policy != GTK_POLICY_NEVER;
}
/* Whether or not we show the scrollbars, if the scrollbars are visible
* actors, we need to give them some allocation, so we unconditionally
* give them the "right" allocation; that might overlap the child when
* the scrollbars are not visible, but it doesn't matter because we
* don't include them in pick or paint.
*/
/* Vertical scrollbar */
if (CLUTTER_ACTOR_IS_VISIBLE (priv->vscroll))
{
if (st_widget_get_direction (ST_WIDGET (actor)) == ST_TEXT_DIRECTION_RTL)
{
child_box.x1 = content_box.x1;
child_box.x2 = content_box.x1 + sb_width;
}
else
{
child_box.x1 = content_box.x2 - sb_width;
child_box.x2 = content_box.x2;
}
child_box.y1 = content_box.y1;
child_box.y2 = content_box.y2 - (hscrollbar_visible ? sb_height : 0);
clutter_actor_allocate (priv->vscroll, &child_box, flags);
}
/* Horizontal scrollbar */
if (CLUTTER_ACTOR_IS_VISIBLE (priv->hscroll))
{
if (st_widget_get_direction (ST_WIDGET (actor)) == ST_TEXT_DIRECTION_RTL)
{
child_box.x1 = content_box.x1 + (vscrollbar_visible ? sb_width : 0);
child_box.x2 = content_box.x2;
}
else
{
child_box.x1 = content_box.x1;
child_box.x2 = content_box.x2 - (vscrollbar_visible ? sb_width : 0);
}
child_box.y1 = content_box.y2 - sb_height;
child_box.y2 = content_box.y2;
clutter_actor_allocate (priv->hscroll, &child_box, flags);
}
/* Now fold visibility into the scrollbar sizes to simplify the rest
* of the computations.
*/
if (!hscrollbar_visible)
sb_height = 0;
if (!vscrollbar_visible)
sb_width = 0;
/* Child */
if (st_widget_get_direction (ST_WIDGET (actor)) == ST_TEXT_DIRECTION_RTL)
{
child_box.x1 = content_box.x1 + sb_width;
child_box.x2 = content_box.x2;
}
else
{
child_box.x1 = content_box.x1;
child_box.x2 = content_box.x2 - sb_width;
}
child_box.y1 = content_box.y1;
child_box.y2 = content_box.y2 - sb_height;
if (priv->child)
clutter_actor_allocate (priv->child, &child_box, flags);
if (priv->hscrollbar_visible != hscrollbar_visible)
{
g_object_freeze_notify (G_OBJECT (actor));
priv->hscrollbar_visible = hscrollbar_visible;
g_object_notify (G_OBJECT (actor), "hscrollbar-visible");
g_object_thaw_notify (G_OBJECT (actor));
}
if (priv->vscrollbar_visible != vscrollbar_visible)
{
g_object_freeze_notify (G_OBJECT (actor));
priv->vscrollbar_visible = vscrollbar_visible;
g_object_notify (G_OBJECT (actor), "vscrollbar-visible");
g_object_thaw_notify (G_OBJECT (actor));
}
}
static void
st_scroll_view_fade_paint_target (ClutterOffscreenEffect *effect)
{
StScrollViewFade *self = ST_SCROLL_VIEW_FADE (effect);
ClutterOffscreenEffectClass *parent;
CoglHandle material;
gdouble value, lower, upper, page_size;
ClutterActor *vscroll = st_scroll_view_get_vscroll_bar (ST_SCROLL_VIEW (self->actor));
ClutterActor *hscroll = st_scroll_view_get_hscroll_bar (ST_SCROLL_VIEW (self->actor));
gboolean h_scroll_visible, v_scroll_visible;
ClutterActorBox allocation, content_box, paint_box;
/*
* Used to pass the fade area to the shader
*
* [0][0] = x1
* [0][1] = y1
* [1][0] = x2
* [1][1] = y2
*
*/
float fade_area[2][2];
ClutterVertex verts[4];
if (self->program == COGL_INVALID_HANDLE)
goto out;
clutter_actor_get_paint_box (self->actor, &paint_box);
clutter_actor_get_abs_allocation_vertices (self->actor, verts);
clutter_actor_get_allocation_box (self->actor, &allocation);
st_theme_node_get_content_box (st_widget_get_theme_node (ST_WIDGET (self->actor)),
(const ClutterActorBox *)&allocation, &content_box);
/*
* The FBO is based on the paint_volume's size which can be larger then the actual
* allocation, so we have to account for that when passing the positions
*/
fade_area[0][0] = content_box.x1 + (verts[0].x - paint_box.x1);
fade_area[0][1] = content_box.y1 + (verts[0].y - paint_box.y1);
fade_area[1][0] = content_box.x2 + (verts[3].x - paint_box.x2);
fade_area[1][1] = content_box.y2 + (verts[3].y - paint_box.y2);
g_object_get (ST_SCROLL_VIEW (self->actor),
"hscrollbar-visible", &h_scroll_visible,
"vscrollbar-visible", &v_scroll_visible,
NULL);
if (v_scroll_visible)
{
if (st_widget_get_direction (ST_WIDGET (self->actor)) == ST_TEXT_DIRECTION_RTL)
fade_area[0][0] += clutter_actor_get_width (vscroll);
fade_area[1][0] -= clutter_actor_get_width (vscroll);
}
if (h_scroll_visible)
fade_area[1][1] -= clutter_actor_get_height (hscroll);
st_adjustment_get_values (self->vadjustment, &value, &lower, &upper, NULL, NULL, &page_size);
if (self->offset_top_uniform > -1) {
if (value > lower + 0.1)
cogl_program_set_uniform_1f (self->program, self->offset_top_uniform, self->fade_offset);
else
cogl_program_set_uniform_1f (self->program, self->offset_top_uniform, 0.0f);
}
if (self->offset_bottom_uniform > -1) {
if (value < upper - page_size - 0.1)
cogl_program_set_uniform_1f (self->program, self->offset_bottom_uniform, self->fade_offset);
else
cogl_program_set_uniform_1f (self->program, self->offset_bottom_uniform, 0.0f);
}
if (self->tex_uniform > -1)
cogl_program_set_uniform_1i (self->program, self->tex_uniform, 0);
if (self->height_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->height_uniform, clutter_actor_get_height (self->actor));
if (self->width_uniform > -1)
cogl_program_set_uniform_1f (self->program, self->width_uniform, clutter_actor_get_width (self->actor));
if (self->fade_area_uniform > -1)
cogl_program_set_uniform_matrix (self->program, self->fade_area_uniform, 2, 1, FALSE, (const float *)fade_area);
material = clutter_offscreen_effect_get_target (effect);
cogl_material_set_user_program (material, self->program);
out:
parent = CLUTTER_OFFSCREEN_EFFECT_CLASS (st_scroll_view_fade_parent_class);
parent->paint_target (effect);
}
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;
GList *l, *children;
gint n_expand_children = 0, i;
gfloat expand_amount, shrink_amount;
BoxChildShrink *shrinks = NULL;
gboolean flip = (st_widget_get_direction (ST_WIDGET (actor)) == ST_TEXT_DIRECTION_RTL)
&& (!priv->is_vertical);
CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->allocate (actor, box,
flags);
children = st_container_get_children_list (ST_CONTAINER (actor));
if (children == NULL)
return;
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 (l = children; l; l = l->next)
{
ClutterActor *child = l->data;
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)
position = content_box.y1;
else if (flip)
position = content_box.x2;
else
position = content_box.x1;
if (priv->is_pack_start)
{
l = g_list_last (children);
i = g_list_length (children);
}
else
{
l = children;
i = 0;
}
gboolean firstchild = TRUE;
gfloat init_padding = (avail_width/2) - (natural_width/2);
while (l)
{
ClutterActor *child = (ClutterActor*) l->data;
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;
if (xalign == ST_ALIGN_CENTER_SPECIAL && next_position < content_box.x1)
next_position = content_box.x1;
}
else {
next_position = position + child_allocated;
if (xalign == ST_ALIGN_CENTER_SPECIAL && next_position > content_box.x2)
next_position = content_box.x2;
}
if (priv->is_vertical)
{
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)
{
if (firstchild && xalign == ST_ALIGN_CENTER_SPECIAL)
{
position -= init_padding;
next_position = position - child_allocated;
firstchild = FALSE;
}
if (xalign == ST_ALIGN_CENTER_SPECIAL && position > content_box.x2) {
position = content_box.x2;
}
child_box.x1 = (int)(0.5 + next_position);
child_box.x2 = (int)(0.5 + position);
}
else
{
if (firstchild && xalign == ST_ALIGN_CENTER_SPECIAL)
{
position += init_padding;
if (position < content_box.x1) {
position = content_box.x1;
}
next_position = position + child_allocated;
firstchild = FALSE;
}
if (xalign == ST_ALIGN_CENTER_SPECIAL && position < content_box.x1) {
position = content_box.x1;
}
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 (priv->is_pack_start)
{
l = l->prev;
i--;
}
else
{
l = l->next;
i++;
}
}
if (shrinks)
g_free (shrinks);
}
static void
st_table_preferred_allocate (ClutterActor *self,
const ClutterActorBox *content_box,
gboolean flags)
{
GList *list, *children;
gint row_spacing, col_spacing;
gint i;
StTable *table;
StTablePrivate *priv;
gboolean ltr;
DimensionData *rows, *columns;
table = ST_TABLE (self);
priv = ST_TABLE (self)->priv;
col_spacing = (priv->col_spacing);
row_spacing = (priv->row_spacing);
st_table_calculate_dimensions (table,
content_box->x2 - content_box->x1,
content_box->y2 - content_box->y1);
ltr = (st_widget_get_direction (ST_WIDGET (self)) == ST_TEXT_DIRECTION_LTR);
rows = &g_array_index (priv->rows, DimensionData, 0);
columns = &g_array_index (priv->columns, DimensionData, 0);
children = st_container_get_children_list (ST_CONTAINER (self));
for (list = children; list; list = list->next)
{
gint row, col, row_span, col_span;
gint col_width, row_height;
StTableChild *meta;
ClutterActor *child;
ClutterActorBox childbox;
gint child_x, child_y;
StAlign x_align, y_align;
gboolean x_fill, y_fill;
child = CLUTTER_ACTOR (list->data);
meta = (StTableChild *) clutter_container_get_child_meta (CLUTTER_CONTAINER (self), child);
if (!meta->allocate_hidden && !CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
/* get child properties */
col = meta->col;
row = meta->row;
row_span = meta->row_span;
col_span = meta->col_span;
x_align = meta->x_align;
y_align = meta->y_align;
x_fill = meta->x_fill;
y_fill = meta->y_fill;
/* initialise the width and height */
col_width = columns[col].final_size;
row_height = rows[row].final_size;
/* Add the widths of the spanned columns:
*
* First check that we have a non-zero span. Then we loop over each of
* the columns that we're spanning but we stop short if we go past the
* number of columns in the table. This is necessary to avoid accessing
* uninitialised memory. We add the spacing in here too since we only
* want to add as much spacing as times we successfully span.
*/
if (col + col_span > priv->n_cols)
g_warning ("StTable: the child at %d,%d's col-span, %d, exceeds number of columns, %d",
col, row, col_span, priv->n_cols);
if (row + row_span > priv->n_rows)
g_warning ("StTable: the child at %d,%d's row-span, %d, exceeds number of rows, %d",
col, row, row_span, priv->n_rows);
if (col_span > 1)
{
for (i = col + 1; i < col + col_span && i < priv->n_cols; i++)
{
col_width += columns[i].final_size;
col_width += col_spacing;
}
}
/* add the height of the spanned rows */
if (row_span > 1)
{
for (i = row + 1; i < row + row_span && i < priv->n_rows; i++)
{
row_height += rows[i].final_size;
row_height += row_spacing;
}
}
/* calculate child x */
if (ltr)
{
child_x = (int) content_box->x1
+ col_spacing * col;
for (i = 0; i < col; i++)
child_x += columns[i].final_size;
}
else
{
child_x = (int) content_box->x2
- col_spacing * col;
for (i = 0; i < col; i++)
child_x -= columns[i].final_size;
}
/* calculate child y */
child_y = (int) content_box->y1
+ row_spacing * row;
for (i = 0; i < row; i++)
child_y += rows[i].final_size;
/* set up childbox */
if (ltr)
{
childbox.x1 = (float) child_x;
childbox.x2 = (float) MAX (0, child_x + col_width);
}
else
{
childbox.x2 = (float) child_x;
childbox.x1 = (float) MAX (0, child_x - col_width);
}
childbox.y1 = (float) child_y;
childbox.y2 = (float) MAX (0, child_y + row_height);
_st_allocate_fill (ST_WIDGET (self), child, &childbox,
x_align, y_align, x_fill, y_fill);
clutter_actor_allocate (child, &childbox, flags);
}
}
static void
st_table_homogeneous_allocate (ClutterActor *self,
const ClutterActorBox *content_box,
gboolean flags)
{
GList *list, *children;
gfloat col_width, row_height;
gint row_spacing, col_spacing;
StTablePrivate *priv = ST_TABLE (self)->priv;
gboolean ltr = st_widget_get_direction (ST_WIDGET (self)) == ST_TEXT_DIRECTION_LTR;
col_spacing = priv->col_spacing;
row_spacing = priv->row_spacing;
col_width = (int) ((content_box->x2 - content_box->x1
- (col_spacing * (priv->n_cols - 1)))
/ priv->n_cols + 0.5);
row_height = (int) ((content_box->y2 - content_box->y1
- (row_spacing * (priv->n_rows - 1)))
/ priv->n_rows + 0.5);
children = st_container_get_children_list (ST_CONTAINER (self));
for (list = children; list; list = list->next)
{
gint row, col, row_span, col_span;
StTableChild *meta;
ClutterActor *child;
ClutterActorBox childbox;
StAlign x_align, y_align;
gboolean x_fill, y_fill;
child = CLUTTER_ACTOR (list->data);
meta = (StTableChild *) clutter_container_get_child_meta (CLUTTER_CONTAINER (self), child);
if (!meta->allocate_hidden && !CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
/* get child properties */
col = meta->col;
row = meta->row;
row_span = meta->row_span;
col_span = meta->col_span;
x_align = meta->x_align;
y_align = meta->y_align;
x_fill = meta->x_fill;
y_fill = meta->y_fill;
if (ltr)
{
childbox.x1 = content_box->x1 + (col_width + col_spacing) * col;
childbox.x2 = childbox.x1 + (col_width * col_span) + (col_spacing * (col_span - 1));
}
else
{
childbox.x2 = content_box->x2 - (col_width + col_spacing) * col;
childbox.x1 = childbox.x2 - (col_width * col_span) - (col_spacing * (col_span - 1));
}
childbox.y1 = content_box->y1 + (row_height + row_spacing) * row;
childbox.y2 = childbox.y1 + (row_height * row_span) + (row_spacing * (row_span - 1));
_st_allocate_fill (ST_WIDGET (self), child, &childbox,
x_align, y_align, x_fill, y_fill);
clutter_actor_allocate (child, &childbox, flags);
}
}
