/**
* _st_allocate_fill:
* @parent: the parent #StWidget
* @child: the child (not necessarily an #StWidget)
* @childbox: total space that could be allocated to @child
* @x_alignment: horizontal alignment within @childbox
* @y_alignment: vertical alignment within @childbox
* @x_fill: whether or not to fill @childbox horizontally
* @y_fill: whether or not to fill @childbox vertically
*
* Given @childbox, containing the initial allocation of @child, this
* adjusts the horizontal allocation if @x_fill is %FALSE, and the
* vertical allocation if @y_fill is %FALSE, by:
*
* - reducing the allocation if it is larger than @child's natural
* size.
*
* - adjusting the position of the child within the allocation
* according to @x_alignment/@y_alignment (and flipping
* @x_alignment if @parent has %ST_TEXT_DIRECTION_RTL)
*
* If @x_fill and @y_fill are both %TRUE, or if @child's natural size
* is larger than the initial allocation in @childbox, then @childbox
* will be unchanged.
*
* If you are allocating children with _st_allocate_fill(), you should
* determine their preferred sizes using
* _st_actor_get_preferred_width() and
* _st_actor_get_preferred_height(), not with the corresponding
* Clutter methods.
*/
void
_st_allocate_fill (StWidget *parent,
ClutterActor *child,
ClutterActorBox *childbox,
StAlign x_alignment,
StAlign y_alignment,
gboolean x_fill,
gboolean y_fill)
{
gfloat natural_width, natural_height;
gfloat min_width, min_height;
gfloat child_width, child_height;
gfloat available_width, available_height;
ClutterRequestMode request;
gdouble x_align, y_align;
available_width = childbox->x2 - childbox->x1;
available_height = childbox->y2 - childbox->y1;
if (available_width < 0)
{
available_width = 0;
childbox->x2 = childbox->x1;
}
if (available_height < 0)
{
available_height = 0;
childbox->y2 = childbox->y1;
}
/* If we are filling both horizontally and vertically then we don't
* need to do anything else.
*/
if (x_fill && y_fill)
return;
_st_get_align_factors (parent, x_alignment, y_alignment,
&x_align, &y_align);
/* The following is based on clutter_actor_get_preferred_size(), but
* modified to cope with the fact that the available size may be
* less than the preferred size.
*/
request = clutter_actor_get_request_mode (child);
if (request == CLUTTER_REQUEST_HEIGHT_FOR_WIDTH)
{
clutter_actor_get_preferred_width (child, -1,
&min_width,
&natural_width);
child_width = CLAMP (natural_width, min_width, available_width);
clutter_actor_get_preferred_height (child, child_width,
&min_height,
&natural_height);
child_height = CLAMP (natural_height, min_height, available_height);
}
else
{
clutter_actor_get_preferred_height (child, -1,
&min_height,
&natural_height);
child_height = CLAMP (natural_height, min_height, available_height);
clutter_actor_get_preferred_width (child, child_height,
&min_width,
&natural_width);
child_width = CLAMP (natural_width, min_width, available_width);
}
if (!x_fill)
{
childbox->x1 += (int)((available_width - child_width) * x_align);
childbox->x2 = childbox->x1 + (int) child_width;
}
if (!y_fill)
{
childbox->y1 += (int)((available_height - child_height) * y_align);
childbox->y2 = childbox->y1 + (int) child_height;
}
}
static void
mx_expander_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
MxExpanderPrivate *priv = MX_EXPANDER (actor)->priv;
ClutterActorBox child_box;
MxPadding padding;
gfloat label_w, label_h;
gfloat available_w, available_h, min_w, min_h, arrow_h, arrow_w;
/* chain up to store allocation */
CLUTTER_ACTOR_CLASS (mx_expander_parent_class)->allocate (actor, box, flags);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
available_w = (box->x2 - box->x1) - padding.left - padding.right;
available_h = (box->y2 - box->y1) - padding.top - padding.bottom;
/* arrow */
clutter_actor_get_preferred_width (priv->arrow, -1, NULL, &arrow_w);
arrow_w = MIN (arrow_w, available_w);
clutter_actor_get_preferred_height (priv->arrow, -1, NULL, &arrow_h);
arrow_h = MIN (arrow_h, available_h);
child_box.x1 = padding.left;
child_box.x2 = child_box.x1 + arrow_w;
child_box.y1 = padding.top;
child_box.y2 = child_box.y1 + arrow_h;
clutter_actor_allocate (priv->arrow, &child_box, flags);
/* label */
min_h = 0;
min_w = 0;
clutter_actor_get_preferred_width (priv->label,
available_h, &min_w, &label_w);
label_w = CLAMP (label_w, min_w, available_w);
clutter_actor_get_preferred_height (priv->label,
label_w, &min_h, &label_h);
label_h = CLAMP (label_h, min_h, available_h);
/* TODO: make a style property for padding between arrow and label */
child_box.x1 = padding.left + arrow_w + 6.0f;
child_box.x2 = child_box.x1 + label_w;
child_box.y1 = padding.top;
child_box.y2 = child_box.y1 + MAX (label_h, arrow_h);
mx_allocate_align_fill (priv->label, &child_box, MX_ALIGN_START,
MX_ALIGN_MIDDLE, FALSE, FALSE);
clutter_actor_allocate (priv->label, &child_box, flags);
/* remove label height and spacing for child calculations */
available_h -= MAX (label_h, arrow_h) + priv->spacing;
/* child */
if (priv->expanded && priv->child && CLUTTER_ACTOR_IS_VISIBLE (priv->child))
{
child_box.x1 = padding.left;
child_box.x2 = child_box.x1 + available_w;
child_box.y1 = padding.top + priv->spacing + MAX (label_h, arrow_h);
child_box.y2 = child_box.y1 + available_h;
clutter_actor_allocate (priv->child, &child_box, flags);
}
}
static void
mex_column_get_preferred_width (ClutterActor *actor,
gfloat for_height,
gfloat *min_width_p,
gfloat *nat_width_p)
{
GList *c;
MxPadding padding;
gfloat min_width, nat_width;
gfloat min_header, nat_header;
gfloat min_placeholder, nat_placeholder;
MexColumn *self = MEX_COLUMN (actor);
MexColumnPrivate *priv = self->priv;
clutter_actor_get_preferred_width (priv->header,
-1,
&min_header,
&nat_header);
if (priv->adjustment)
for_height = -1;
else if (for_height >= 0)
{
gfloat height;
clutter_actor_get_preferred_height (priv->header, -1, NULL, &height);
for_height = MAX (0, for_height - height);
}
if (priv->n_items < 1)
{
if (priv->placeholder_actor)
{
clutter_actor_get_preferred_width (priv->placeholder_actor,
for_height,
&min_placeholder,
&nat_placeholder);
min_width = MAX (min_header, min_placeholder);
nat_width = MAX (min_header, nat_placeholder);
}
else
{
min_width = min_header;
nat_width = nat_header;
}
}
else
{
min_width = nat_width = 0;
for_height /= (gfloat)priv->n_items;
for (c = priv->children; c; c = c->next)
{
gfloat child_min_width, child_nat_width;
ClutterActor *child = c->data;
clutter_actor_get_preferred_width (child, for_height,
&child_min_width,
&child_nat_width);
if (child_min_width > min_width)
min_width = child_min_width;
if (child_nat_width > nat_width)
nat_width = child_nat_width;
}
if (min_header > min_width)
min_width = min_header;
if (min_header > nat_width)
nat_width = min_header;
}
mx_widget_get_padding (MX_WIDGET (actor), &padding);
if (min_width_p)
*min_width_p = min_width + padding.left + padding.right;
if (nat_width_p)
*nat_width_p = nat_width + padding.left + padding.right;
}
static void
mex_column_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
ClutterActorBox child_box;
MxPadding padding;
GList *c;
MexColumn *column = MEX_COLUMN (actor);
MexColumnPrivate *priv = column->priv;
CLUTTER_ACTOR_CLASS (mex_column_parent_class)->allocate (actor, box, flags);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
child_box.x1 = padding.left;
child_box.x2 = box->x2 - box->x1 - padding.right;
child_box.y1 = padding.top;
child_box.y2 = box->y2 - box->y1 - padding.bottom;
if (priv->n_items)
{
/* Calculate child height multiplier */
gfloat width, pref_height, avail_height, ratio, remainder;
if (!priv->adjustment)
{
/* Find out the height available for each actor as a ratio of
* their preferred height.
*/
clutter_actor_get_preferred_height (actor, box->x2 - box->x1,
NULL, &pref_height);
pref_height -= padding.top + padding.bottom;
avail_height = child_box.y2 - child_box.y1;
ratio = avail_height / pref_height;
}
else
ratio = 1;
/* Allocate children */
remainder = 0;
width = child_box.x2 - child_box.x1;
for (c = priv->children; c; c = c->next)
{
gfloat min_height, nat_height, height;
ClutterActor *child = c->data;
clutter_actor_get_preferred_height (child, width,
&min_height, &nat_height);
/* Calculate the allocatable height and keep an accumulator so
* when we round to a pixel, we don't end up with a lot of
* empty space at the end of the actor.
*/
height = MAX (min_height, nat_height / ratio);
remainder += (height - (gint)height);
height = (gint)height;
while (remainder >= 1.f)
{
height += 1.f;
remainder -= 1.f;
}
/* Allocate the child */
child_box.y2 = child_box.y1 + height;
clutter_actor_allocate (child, &child_box, flags);
/* Set the top position of the next child box */
child_box.y1 = child_box.y2;
}
}
/* Make sure the adjustment reflects the column's allocation */
if (priv->adjustment)
{
gdouble page_size = box->y2 - box->y1 - padding.top - padding.bottom;
mx_adjustment_set_values (priv->adjustment,
mx_adjustment_get_value (priv->adjustment),
0.0,
child_box.y2 - padding.top,
1.0,
page_size,
page_size);
}
}
static void
scroll_bar_allocate_children (StScrollBar *bar,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StScrollBarPrivate *priv = bar->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (bar));
ClutterActorBox content_box, bw_box, fw_box, trough_box;
gfloat bw_stepper_size, fw_stepper_size, min_size, natural_size;
st_theme_node_get_content_box (theme_node, box, &content_box);
if (priv->vertical)
{
gfloat width = content_box.x2 - content_box.x1;
clutter_actor_get_preferred_height (priv->bw_stepper, width,
&min_size, &natural_size);
bw_stepper_size = MAX (min_size, natural_size);
/* Backward stepper */
bw_box.x1 = content_box.x1;
bw_box.y1 = content_box.y1;
bw_box.x2 = content_box.x2;
bw_box.y2 = bw_box.y1 + bw_stepper_size;
clutter_actor_allocate (priv->bw_stepper, &bw_box, flags);
clutter_actor_get_preferred_height (priv->fw_stepper, width,
&min_size, &natural_size);
fw_stepper_size = MAX (min_size, natural_size);
/* Forward stepper */
fw_box.x1 = content_box.x1;
fw_box.y1 = content_box.y2 - fw_stepper_size;
fw_box.x2 = content_box.x2;
fw_box.y2 = content_box.y2;
clutter_actor_allocate (priv->fw_stepper, &fw_box, flags);
/* Trough */
trough_box.x1 = content_box.x1;
trough_box.y1 = content_box.y1 + bw_stepper_size;
trough_box.x2 = content_box.x2;
trough_box.y2 = content_box.y2 - fw_stepper_size;
clutter_actor_allocate (priv->trough, &trough_box, flags);
}
else
{
gfloat height = content_box.y2 - content_box.y1;
clutter_actor_get_preferred_width (priv->bw_stepper, height,
&min_size, &natural_size);
bw_stepper_size = MAX (min_size, natural_size);
/* Backward stepper */
bw_box.x1 = content_box.x1;
bw_box.y1 = content_box.y1;
bw_box.x2 = bw_box.x1 + bw_stepper_size;
bw_box.y2 = content_box.y2;
clutter_actor_allocate (priv->bw_stepper, &bw_box, flags);
clutter_actor_get_preferred_width (priv->fw_stepper, height,
&min_size, &natural_size);
fw_stepper_size = MAX (min_size, natural_size);
/* Forward stepper */
fw_box.x1 = content_box.x2 - fw_stepper_size;
fw_box.y1 = content_box.y1;
fw_box.x2 = content_box.x2;
fw_box.y2 = content_box.y2;
clutter_actor_allocate (priv->fw_stepper, &fw_box, flags);
/* Trough */
trough_box.x1 = content_box.x1 + bw_stepper_size;
trough_box.y1 = content_box.y1;
trough_box.x2 = content_box.x2 - fw_stepper_size;
trough_box.y2 = content_box.y2;
clutter_actor_allocate (priv->trough, &trough_box, flags);
}
if (priv->adjustment)
{
float handle_size, position, avail_size, stepper_size;
gdouble value, lower, upper, page_size, increment, min_size, max_size;
ClutterActorBox handle_box = { 0, };
stepper_size = bw_stepper_size + fw_stepper_size;
st_adjustment_get_values (priv->adjustment,
&value,
&lower,
&upper,
NULL,
NULL,
&page_size);
if ((upper == lower)
|| (page_size >= (upper - lower)))
increment = 1.0;
else
increment = page_size / (upper - lower);
min_size = 32.;
st_theme_node_lookup_length (theme_node, "min-size", FALSE, &min_size);
max_size = G_MAXINT16;
st_theme_node_lookup_length (theme_node, "max-size", FALSE, &max_size);
if (upper - lower - page_size <= 0)
position = 0;
else
position = (value - lower) / (upper - lower - page_size);
if (priv->vertical)
{
avail_size = content_box.y2 - content_box.y1 - stepper_size;
handle_size = increment * avail_size;
handle_size = CLAMP (handle_size, min_size, max_size);
handle_box.x1 = content_box.x1;
handle_box.y1 = bw_box.y2 + position * (avail_size - handle_size);
handle_box.x2 = content_box.x2;
handle_box.y2 = handle_box.y1 + handle_size;
}
else
{
avail_size = content_box.x2 - content_box.x1 - stepper_size;
handle_size = increment * avail_size;
handle_size = CLAMP (handle_size, min_size, max_size);
handle_box.x1 = bw_box.x2 + position * (avail_size - handle_size);
handle_box.y1 = content_box.y1;
handle_box.x2 = handle_box.x1 + handle_size;
handle_box.y2 = content_box.y2;
}
/* snap to pixel */
handle_box.x1 = (int) handle_box.x1;
handle_box.y1 = (int) handle_box.y1;
handle_box.x2 = (int) handle_box.x2;
handle_box.y2 = (int) handle_box.y2;
clutter_actor_allocate (priv->handle,
&handle_box,
flags);
}
}
static void
clutter_flow_layout_get_preferred_height (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_width,
gfloat *min_height_p,
gfloat *nat_height_p)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
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;
ClutterActorIter iter;
gfloat item_x;
n_columns = get_columns (CLUTTER_FLOW_LAYOUT (manager), for_width);
total_min_height = 0;
total_natural_height = 0;
line_min_height = 0;
line_natural_height = 0;
line_item_count = 0;
line_count = 0;
item_x = 0;
actor = CLUTTER_ACTOR (container);
/* clear the line height arrays */
if (priv->line_min != NULL)
g_array_free (priv->line_min, TRUE);
if (priv->line_natural != NULL)
g_array_free (priv->line_natural, TRUE);
priv->line_min = g_array_sized_new (FALSE, FALSE,
sizeof (gfloat),
16);
priv->line_natural = g_array_sized_new (FALSE, FALSE,
sizeof (gfloat),
16);
if (clutter_actor_get_n_children (actor) != 0)
line_count = 1;
max_min_height = max_natural_height = 0;
clutter_actor_iter_init (&iter, actor);
while (clutter_actor_iter_next (&iter, &child))
{
gfloat child_min, child_natural;
gfloat new_x, item_width;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL && for_width > 0)
{
if (line_item_count == n_columns)
{
total_min_height += line_min_height;
total_natural_height += line_natural_height;
g_array_append_val (priv->line_min,
line_min_height);
g_array_append_val (priv->line_natural,
line_natural_height);
line_min_height = line_natural_height = 0;
line_item_count = 0;
line_count += 1;
item_x = 0;
}
new_x = ((line_item_count + 1) * (for_width + priv->col_spacing))
/ n_columns;
item_width = new_x - item_x - priv->col_spacing;
clutter_actor_get_preferred_height (child, item_width,
&child_min,
&child_natural);
line_min_height = MAX (line_min_height, child_min);
line_natural_height = MAX (line_natural_height, child_natural);
item_x = new_x;
line_item_count += 1;
max_min_height = MAX (max_min_height, line_min_height);
max_natural_height = MAX (max_natural_height, line_natural_height);
}
else
{
clutter_actor_get_preferred_height (child, for_width,
&child_min,
&child_natural);
max_min_height = MAX (max_min_height, child_min);
max_natural_height = MAX (max_natural_height, child_natural);
total_min_height += max_min_height;
total_natural_height += max_natural_height;
line_count += 1;
}
}
priv->row_height = max_natural_height;
if (priv->max_row_height > 0 && priv->row_height > priv->max_row_height)
priv->row_height = MAX (priv->max_row_height, max_min_height);
if (priv->row_height < priv->min_row_height)
priv->row_height = priv->min_row_height;
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL && for_width > 0)
{
/* if we have a non-full row we need to add it */
if (line_item_count > 0)
{
total_min_height += line_min_height;
total_natural_height += line_natural_height;
g_array_append_val (priv->line_min,
line_min_height);
g_array_append_val (priv->line_natural,
line_natural_height);
}
priv->line_count = line_count;
if (priv->line_count > 0)
{
gfloat total_spacing;
total_spacing = priv->row_spacing * (priv->line_count - 1);
total_min_height += total_spacing;
total_natural_height += total_spacing;
}
}
else
{
g_array_append_val (priv->line_min, line_min_height);
g_array_append_val (priv->line_natural, line_natural_height);
priv->line_count = line_count;
if (priv->line_count > 0)
{
gfloat total_spacing;
total_spacing = priv->col_spacing * priv->line_count;
total_min_height += total_spacing;
total_natural_height += total_spacing;
}
}
CLUTTER_NOTE (LAYOUT,
"Flow[h]: %d lines (%d per line): w [ %.2f, %.2f ] for h %.2f",
n_columns, priv->line_count,
total_min_height,
total_natural_height,
for_width);
priv->req_width = for_width;
if (min_height_p)
*min_height_p = max_min_height;
if (nat_height_p)
*nat_height_p = total_natural_height;
}
int main(int argc, char *argv[])
{
ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
ClutterColor actor_color = { 0xff, 0xff, 0xcc, 0xff };
clutter_init (&argc, &argv);
/* Get the stage and set its size and color: */
ClutterActor *stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 800, 200);
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
/* Add a non-editable text actor to the stage: */
ClutterActor *text = clutter_text_new ();
/* Setup text properties */
clutter_text_set_color (CLUTTER_TEXT (text), &actor_color);
clutter_text_set_text (CLUTTER_TEXT (text),
"Non-editable text: Wizard imps and sweat sock pimps, interstellar mongrel nymphs.");
clutter_text_set_font_name (CLUTTER_TEXT (text), "Sans 12");
clutter_text_set_editable (CLUTTER_TEXT (text), FALSE);
clutter_text_set_line_wrap (CLUTTER_TEXT (text), FALSE);
/* Discover the preferred height and use that height: */
float min_height = 0;
float natural_height = 0;
clutter_actor_get_preferred_height (text, 750, &min_height,
&natural_height);
clutter_actor_set_size (text, 750, natural_height);
clutter_actor_set_position (text, 5, 5);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
clutter_actor_show (text);
/* Add a multi-line editable text actor to the stage: */
text = clutter_text_new ();
/* Setup text properties */
clutter_text_set_color (CLUTTER_TEXT (text), &actor_color);
clutter_text_set_text (CLUTTER_TEXT (text),
"Editable text: And as I sat there brooding on the old, unknown world, I thought of "
"Gatsby's wonder when he first picked out the green light at the end of "
"Daisy's dock. He had come a long way to this blue lawn and his dream "
"must have seemed so close that he could hardly fail to grasp it. He did "
"not know that it was already behind him, somewhere back in that vast "
"obscurity beyond the city, where the dark fields of the republic rolled "
"on under the night.");
clutter_text_set_font_name (CLUTTER_TEXT (text), "Sans 12");
clutter_text_set_editable (CLUTTER_TEXT (text), TRUE);
clutter_text_set_line_wrap (CLUTTER_TEXT (text), TRUE);
/* Discover the preferred height and use that height: */
min_height = 0;
natural_height = 0;
clutter_actor_get_preferred_height (text, 750, &min_height,
&natural_height);
clutter_actor_set_size (text, 750, natural_height);
clutter_actor_set_position (text, 5, 50);
clutter_container_add_actor (CLUTTER_CONTAINER (stage), text);
clutter_actor_show (text);
/* Set focus to handle key presses on the stage: */
clutter_stage_set_key_focus (CLUTTER_STAGE (stage), text);
/* Show the stage: */
clutter_actor_show (stage);
/* Start the main loop, so we can respond to events: */
clutter_main ();
return EXIT_SUCCESS;
}
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
calculate_row_heights (ClutterTableLayout *self,
ClutterContainer *container,
gint for_height)
{
ClutterTableLayoutPrivate *priv = self->priv;
ClutterLayoutManager *manager = CLUTTER_LAYOUT_MANAGER (self);
ClutterActor *actor, *child;
gint i;
DimensionData *rows, *columns;
ClutterOrientation orientation = CLUTTER_ORIENTATION_VERTICAL;
update_row_col (self, container);
g_array_set_size (priv->rows, 0);
g_array_set_size (priv->rows, self->priv->n_rows);
rows = (DimensionData *) (void *) priv->rows->data;
columns = (DimensionData *) (void *) priv->columns->data;
/* reset the visibility of all rows */
priv->visible_rows = 0;
for (i = 0; i < priv->n_rows; i++)
{
rows[i].expand = FALSE;
rows[i].visible = FALSE;
}
actor = CLUTTER_ACTOR (container);
/* STAGE ONE: calculate row heights for non-spanned children */
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterTableChild *meta;
DimensionData *row;
gfloat c_min, c_pref;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->row_span > 1)
continue;
row = &rows[meta->row];
if (!row->visible)
{
row->visible = TRUE;
priv->visible_rows += 1;
}
clutter_actor_get_preferred_height (child, columns[meta->col].final_size,
&c_min, &c_pref);
row->min_size = MAX (row->min_size, c_min);
row->pref_size = MAX (row->pref_size, c_pref);
if (!row->expand)
row->expand = clutter_actor_needs_expand (child, orientation);
}
/* STAGE TWO: take spanning children into account */
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterTableChild *meta;
gfloat c_min, c_pref;
gfloat min_height, pref_height;
gint start_row, end_row;
gint n_expand;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta =
CLUTTER_TABLE_CHILD (clutter_layout_manager_get_child_meta (manager,
container,
child));
if (meta->row_span < 2)
continue;
start_row = meta->row;
end_row = meta->row + meta->row_span - 1;
clutter_actor_get_preferred_height (child, columns[meta->col].final_size,
&c_min, &c_pref);
/* check there is enough room for this actor */
min_height = 0;
pref_height = 0;
n_expand = 0;
for (i = start_row; i <= end_row; i++)
{
min_height += rows[i].min_size;
pref_height += rows[i].pref_size;
if (rows[i].expand)
n_expand++;
if (!rows[i].visible)
{
rows[i].visible = TRUE;
priv->visible_rows += 1;
}
if (!rows[i].expand)
rows[i].expand = clutter_actor_needs_expand (child, orientation);
}
min_height += priv->row_spacing * (meta->row_span - 1);
pref_height += priv->row_spacing * (meta->row_span - 1);
/* 1) If the minimum height of the rows spanned is less than the
* minimum height of the child that is spanning them, then we
* must increase the minimum height of the rows spanned.
*
* 2) If the preferred height of the spanned rows is more than
* the minimum height of the spanning child, then we can start
* at this size and decrease each row evenly.
*
* 3) If the preferred height of the rows is more than the minimum
* height of the spanned child, then we can start at the preferred
* height and expand.
*/
/* (1) */
if (c_min > min_height)
{
/* (2) */
/* we can start from preferred height and decrease */
if (pref_height > c_min)
{
for (i = start_row; i <= end_row; i++)
rows[i].final_size = rows[i].pref_size;
while (pref_height > c_min)
{
for (i = start_row; i <= end_row; i++)
{
if (rows[i].final_size > rows[i].min_size)
{
rows[i].final_size--;
pref_height--;
}
}
}
for (i = start_row; i <= end_row; i++)
rows[i].min_size = rows[i].final_size;
}
else
{
/* (3) */
/* we can expand from preferred size */
gfloat expand_by = c_pref - pref_height;
for (i = start_row; i <= end_row; i++)
{
if (n_expand)
{
if (rows[i].expand)
rows[i].min_size = rows[i].pref_size
+ expand_by / n_expand;
}
else
rows[i].min_size = rows[i].pref_size
+ expand_by / meta->row_span;
}
}
}
}
/* calculate final heights */
if (for_height >= 0)
{
gfloat min_height, pref_height;
gint n_expand;
min_height = 0;
pref_height = 0;
n_expand = 0;
for (i = 0; i < self->priv->n_rows; i++)
{
pref_height += rows[i].pref_size;
min_height += rows[i].min_size;
if (rows[i].expand)
n_expand++;
}
pref_height += priv->row_spacing * (priv->n_rows - 1);
min_height += priv->row_spacing * (priv->n_rows - 1);
if (for_height <= min_height)
{
/* erk, we can't shrink this! */
for (i = 0; i < self->priv->n_rows; i++)
rows[i].final_size = rows[i].min_size;
return;
}
if (for_height == pref_height)
{
/* perfect! */
for (i = 0; i < self->priv->n_rows; i++)
rows[i].final_size = rows[i].pref_size;
return;
}
/* for_height is between min_height and pref_height */
if (for_height < pref_height && for_height > min_height)
{
gfloat height;
/* shrink rows until they reach min_height */
/* start with all rows at preferred size */
for (i = 0; i < self->priv->n_rows; i++)
rows[i].final_size = rows[i].pref_size;
height = pref_height;
while (height > for_height)
{
for (i = 0; i < priv->n_rows; i++)
{
if (rows[i].final_size > rows[i].min_size)
{
rows[i].final_size--;
height--;
}
}
}
return;
}
/* expand rows */
if (for_height > pref_height)
{
gfloat extra_height = for_height - pref_height;
gint remaining;
if (n_expand)
remaining = (gint) extra_height % n_expand;
else
remaining = (gint) extra_height % self->priv->n_rows;
for (i = 0; i < self->priv->n_rows; i++)
{
if (rows[i].expand)
{
rows[i].final_size = rows[i].pref_size
+ (extra_height / n_expand);
}
else
rows[i].final_size = rows[i].pref_size;
}
/* distribute the remainder among children */
i = 0;
while (remaining)
{
rows[i].final_size++;
i++;
remaining--;
}
}
}
}
static void
mx_menu_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
gint i;
MxPadding padding;
ClutterActorBox child_box;
MxMenuPrivate *priv = MX_MENU (actor)->priv;
gfloat available_h = box->y2-box->y1;
/*
* first of all, we have to check if the allocated height is our
* natural height...
*/
gfloat menu_nat_h;
mx_menu_get_preferred_height (actor, box->x2-box->x1, NULL, &menu_nat_h);
if (available_h < menu_nat_h)
{
/*
* ...if not, we have to draw 2 buttons in order to let the
* user be able to navigate in the whole menu.
*/
priv->scrolling_mode = TRUE;
}
else
{
priv->scrolling_mode = FALSE;
}
/* Allocate children */
mx_widget_get_padding (MX_WIDGET (actor), &padding);
child_box.x1 = padding.left;
child_box.y1 = padding.top;
child_box.x2 = box->x2 - box->x1 - padding.right;
gfloat down_but_height;
clutter_actor_get_preferred_height (priv->down_button,
child_box.x2 - child_box.x1,
NULL,
&down_but_height);
if (priv->scrolling_mode)
{
clutter_actor_get_preferred_height (priv->up_button,
child_box.x2 - child_box.x1,
NULL,
&child_box.y2);
child_box.y2 += child_box.y1;
clutter_actor_allocate (priv->up_button, &child_box, flags);
child_box.y1 = child_box.y2 + 1;
available_h -= down_but_height;
}
for (i = priv->id_offset; i < priv->children->len; i++)
{
gfloat natural_height;
MxMenuChild *child = &g_array_index (priv->children, MxMenuChild,
i);
clutter_actor_get_preferred_height (CLUTTER_ACTOR (child->box),
child_box.x2 - child_box.x1,
NULL,
&natural_height);
child_box.y2 = child_box.y1 + natural_height;
if (child_box.y2 >= available_h)
{
priv->last_shown_id = i-1;
break;
}
clutter_actor_allocate (CLUTTER_ACTOR (child->box), &child_box, flags);
child_box.y1 = child_box.y2 + 1;
}
if (priv->children->len == i)
{
priv->last_shown_id = i-1;
}
if (priv->scrolling_mode)
{
child_box.y2 = child_box.y1 + down_but_height;
clutter_actor_allocate (priv->down_button, &child_box, flags);
}
/* Chain up and allocate background */
CLUTTER_ACTOR_CLASS (mx_menu_parent_class)->allocate (actor, box, flags);
}
static void
mx_tooltip_update_position (MxTooltip *tooltip)
{
MxTooltipPrivate *priv = tooltip->priv;
ClutterGeometry tip_area = *tooltip->priv->tip_area;
gfloat tooltip_w, tooltip_h, tooltip_x, tooltip_y, abs_x, abs_y;
ClutterActor *stage, *parent;
gfloat stage_w, stage_h, parent_w, parent_h;
MxWindow *window;
/* If there's no stage, bail out - there's nothing we can do */
stage = clutter_actor_get_stage ((ClutterActor *) tooltip);
if (!stage)
return;
/* find out the stage's size to keep the tooltip on-screen */
clutter_actor_get_size (stage, &stage_w, &stage_h);
parent = clutter_actor_get_parent ((ClutterActor *) tooltip);
clutter_actor_get_transformed_position (parent, &abs_x, &abs_y);
clutter_actor_get_size (parent, &parent_w, &parent_h);
/* ensure the tooltip with is not fixed size */
clutter_actor_set_size ((ClutterActor*) tooltip, -1, -1);
/* if no area set, just position ourselves top left */
if (!priv->tip_area)
{
clutter_actor_set_position ((ClutterActor*) tooltip, abs_x, abs_y);
return;
}
/* check if we're in a window and if there's rotation */
window = mx_window_get_for_stage (CLUTTER_STAGE (stage));
if (window)
{
MxWindowRotation rotation;
gfloat old_x;
g_object_get (G_OBJECT (window),
"window-rotation", &rotation,
NULL);
if (rotation == MX_WINDOW_ROTATION_90
|| rotation == MX_WINDOW_ROTATION_270)
{
/* swap stage width and height */
old_x = stage_w;
stage_w = stage_h;
stage_h = old_x;
/* swap tip area width and height */
old_x = tip_area.width;
tip_area.width = tip_area.height;
tip_area.height = old_x;
}
switch (rotation)
{
case MX_WINDOW_ROTATION_90:
/* absolute position */
old_x = abs_x;
abs_x = abs_y;
abs_y = stage_h - old_x;
/* tip area */
old_x = tip_area.x;
tip_area.x = tip_area.y;
tip_area.y = stage_h - old_x - tip_area.height;
break;
case MX_WINDOW_ROTATION_180:
tip_area.x = stage_w - tip_area.x - tip_area.width;
tip_area.y = stage_h - tip_area.y - tip_area.height;
abs_x = stage_w - abs_x;
abs_y = stage_h - abs_y;
break;
case MX_WINDOW_ROTATION_270:
/* absolute position */
old_x = abs_x;
abs_x = stage_w - abs_y;
abs_y = old_x;
/* tip area */
old_x = tip_area.x;
tip_area.x = stage_w - tip_area.y - tip_area.width;
tip_area.y = old_x;
break;
default:
break;
}
}
/* we need to have a style in case there are padding values to take into
* account when calculating width/height */
mx_stylable_style_changed (MX_STYLABLE (tooltip), MX_STYLE_CHANGED_FORCE);
/* find out the tooltip's size */
clutter_actor_get_size ((ClutterActor*) tooltip, &tooltip_w, &tooltip_h);
/* attempt to place the tooltip */
/* This special-cases the 4 window rotations, as doing this with
* arbitrary rotations would massively complicate the code for
* little benefit.
*/
priv->actor_below = FALSE;
tooltip_x = (int)(tip_area.x + (tip_area.width / 2) -
(tooltip_w / 2));
tooltip_y = (int)(tip_area.y + tip_area.height);
/* Keep on the screen vertically */
if (tooltip_y + tooltip_h > stage_h)
{
priv->actor_below = TRUE;
/* re-query size as may have changed */
clutter_actor_get_preferred_height ((ClutterActor*) tooltip,
-1, NULL, &tooltip_h);
tooltip_y = MAX (0, tip_area.y - tooltip_h);
}
/* Keep on the screen horizontally */
if (tooltip_w > stage_w)
{
tooltip_x = 0;
clutter_actor_set_width ((ClutterActor*) tooltip, stage_w);
}
else if (tooltip_x < 0)
tooltip_x = 0;
else if (tooltip_x + tooltip_w > stage_w)
tooltip_x = (int)(stage_w) - tooltip_w;
gfloat pos_x, pos_y;
pos_x = tooltip_x - abs_x;
pos_y = tooltip_y - abs_y;
/* calculate the arrow offset */
priv->arrow_offset = tip_area.x + tip_area.width / 2 - tooltip_x;
clutter_actor_set_position ((ClutterActor*) tooltip, pos_x, pos_y);
}
static void
mx_table_calculate_row_heights (MxTable *table,
gint for_height)
{
MxTablePrivate *priv = MX_TABLE (table)->priv;
gint i;
DimensionData *rows, *columns;
MxPadding padding;
ClutterActorIter iter;
ClutterActor *child;
mx_widget_get_padding (MX_WIDGET (table), &padding);
/* take padding off available height */
for_height -= (int)(padding.top + padding.bottom);
g_array_set_size (priv->rows, 0);
g_array_set_size (priv->rows, priv->n_rows);
rows = &g_array_index (priv->rows, DimensionData, 0);
columns = &g_array_index (priv->columns, DimensionData, 0);
/* Reset the visible rows */
priv->visible_rows = 0;
for (i = 0; i < priv->n_rows; i++)
rows[i].is_visible = FALSE;
/* STAGE ONE: calculate row heights for non-spanned children */
clutter_actor_iter_init (&iter, CLUTTER_ACTOR (table));
while (clutter_actor_iter_next (&iter, &child))
{
MxTableChild *meta;
DimensionData *row;
gfloat c_min, c_pref;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (MxTableChild *)
clutter_container_get_child_meta (CLUTTER_CONTAINER (table), child);
if (meta->row_span > 1)
continue;
row = &rows[meta->row];
/* If this child is visible, then its row is visible */
if (!row->is_visible)
{
row->is_visible = TRUE;
priv->visible_rows++;
}
clutter_actor_get_preferred_height (child, columns[meta->col].final_size,
&c_min, &c_pref);
row->min_size = MAX (row->min_size, c_min);
row->final_size = row->pref_size = MAX (row->pref_size, c_pref);
row->expand = MAX (row->expand, meta->y_expand);
}
/* STAGE TWO: take spanning children into account */
clutter_actor_iter_init (&iter, CLUTTER_ACTOR (table));
while (clutter_actor_iter_next (&iter, &child))
{
MxTableChild *meta;
gfloat c_min, c_pref;
gfloat min_height, pref_height;
gint start_row, end_row;
gint n_expand;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
meta = (MxTableChild *)
clutter_container_get_child_meta (CLUTTER_CONTAINER (table), child);
if (meta->row_span < 2)
continue;
start_row = meta->row;
end_row = meta->row + meta->row_span - 1;
clutter_actor_get_preferred_height (child, columns[meta->col].final_size,
&c_min, &c_pref);
/* check there is enough room for this actor */
min_height = 0;
pref_height = 0;
n_expand = 0;
for (i = start_row; i <= end_row; i++)
{
min_height += rows[i].min_size;
pref_height += rows[i].pref_size;
if (rows[i].expand)
{
n_expand++;
}
/* If this actor is visible, then all the rows is spans are visible */
if (!rows[i].is_visible)
{
rows[i].is_visible = TRUE;
priv->visible_rows++;
}
rows[i].expand = MAX (rows[i].expand, meta->y_expand);
}
min_height += priv->row_spacing * (meta->row_span - 1);
pref_height += priv->row_spacing * (meta->row_span - 1);
/* 1) If the minimum height of the rows spanned is less than the minimum
* height of the child that is spanning them, then we must increase the
* minimum height of the rows spanned.
*
* 2) If the preferred height of the spanned rows is more that the minimum
* height of the spanning child, then we can start at this size and
* decrease each row evenly.
*
* 3) If the preferred height of the rows is more than the minimum height
* of the spanned child, then we can start at the preferred height and
* expand.
*/
/* (1) */
if (c_min > min_height)
{
/* (2) */
/* we can start from preferred height and decrease */
if (pref_height > c_min)
{
for (i = start_row; i <= end_row; i++)
{
rows[i].final_size = rows[i].pref_size;
}
while (pref_height > c_min)
{
for (i = start_row; i <= end_row; i++)
{
if (rows[i].final_size > rows[i].min_size)
{
rows[i].final_size--;
pref_height--;
}
}
}
for (i = start_row; i <= end_row; i++)
{
rows[i].min_size = rows[i].final_size;
}
}
else
{
/* (3) */
/* we can expand from preferred size */
gfloat expand_by;
expand_by = c_pref - pref_height;
for (i = start_row; i <= end_row; i++)
{
if (n_expand)
{
if (rows[i].expand)
rows[i].min_size =
rows[i].pref_size + expand_by / n_expand;
}
else
{
rows[i].min_size =
rows[i].pref_size + expand_by / meta->row_span;
}
}
}
}
}
/* calculate final heights */
if (for_height >= 0)
{
gfloat min_height, pref_height;
gint n_expand;
min_height = 0;
pref_height = 0;
n_expand = 0;
for (i = 0; i < priv->n_rows; i++)
{
pref_height += rows[i].pref_size;
min_height += rows[i].min_size;
if (rows[i].expand)
n_expand++;
}
pref_height += priv->row_spacing * (priv->n_rows - 1);
min_height += priv->row_spacing * (priv->n_rows - 1);
if (for_height <= min_height)
{
/* erk, we can't shrink this! */
for (i = 0; i < priv->n_rows; i++)
{
rows[i].final_size = rows[i].min_size;
}
return;
}
if (for_height == pref_height)
{
/* perfect! */
for (i = 0; i < priv->n_rows; i++)
{
rows[i].final_size = rows[i].pref_size;
}
return;
}
/* for_height is between min_height and pref_height */
if (for_height < pref_height && for_height > min_height)
{
gfloat height;
/* shrink rows until they reach min_height */
/* start with all rows at preferred size */
for (i = 0; i < priv->n_rows; i++)
{
rows[i].final_size = rows[i].pref_size;
}
height = pref_height;
while (height > for_height)
{
for (i = 0; i < priv->n_rows; i++)
{
if (rows[i].final_size > rows[i].min_size)
{
rows[i].final_size--;
height--;
}
}
}
return;
}
/* expand rows */
if (for_height > pref_height)
{
gfloat extra_height = for_height - pref_height;
gint remaining;
if (n_expand)
remaining = (gint) extra_height % n_expand;
else
remaining = (gint) extra_height % priv->n_rows;
for (i = 0; i < priv->n_rows; i++)
{
if (rows[i].expand)
{
if (n_expand)
{
rows[i].final_size =
rows[i].pref_size + (extra_height / n_expand);
}
else
{
rows[i].final_size =
rows[i].pref_size + (extra_height / priv->n_rows);
}
}
else
rows[i].final_size = rows[i].pref_size;
}
/* distribute the remainder among children */
i = 0;
while (remaining)
{
rows[i].final_size++;
i++;
remaining--;
}
}
}
}
static void
mex_column_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height_p,
gfloat *nat_height_p)
{
GList *c;
gfloat min_height, nat_height;
MxPadding padding;
MexColumn *self = MEX_COLUMN (actor);
MexColumnPrivate *priv = self->priv;
mx_widget_get_padding (MX_WIDGET (actor), &padding);
if (for_width >= 0)
for_width = MAX (0, for_width - padding.left - padding.right);
clutter_actor_get_preferred_height (priv->header,
for_width,
NULL,
&min_height);
nat_height = min_height;
if (priv->n_items < 1)
{
gfloat min_placeholder, nat_placeholder;
clutter_actor_get_preferred_height (priv->placeholder_actor,
for_width,
&min_placeholder,
&nat_placeholder);
min_height += min_placeholder;
nat_height += nat_placeholder;
}
else
{
gfloat child_min_height, child_nat_height;
for (c = priv->children; c; c = c->next)
{
ClutterActor *child = c->data;
clutter_actor_get_preferred_height (child, for_width,
&child_min_height,
&child_nat_height);
min_height += child_min_height;
nat_height += child_nat_height;
if (priv->adjustment)
break;
}
}
if (min_height_p)
*min_height_p = min_height + padding.top + padding.bottom;
if (nat_height_p)
*nat_height_p += nat_height + padding.top + padding.bottom;
}
static void
mx_stack_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
GList *c;
ClutterActorBox avail_space;
MxStackPrivate *priv = MX_STACK (actor)->priv;
CLUTTER_ACTOR_CLASS (mx_stack_parent_class)->allocate (actor, box, flags);
mx_widget_get_available_area (MX_WIDGET (actor), box, &avail_space);
memcpy (&priv->allocation, box, sizeof (priv->allocation));
for (c = priv->children; c; c = c->next)
{
gboolean x_fill, y_fill, fit, crop;
MxAlign x_align, y_align;
ClutterActor *child = c->data;
ClutterActorBox child_box = avail_space;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
clutter_container_child_get (CLUTTER_CONTAINER (actor),
child,
"x-fill", &x_fill,
"y-fill", &y_fill,
"x-align", &x_align,
"y-align", &y_align,
"fit", &fit,
"crop", &crop,
NULL);
/* when "crop" is set, fit and fill properties are ignored */
if (crop)
{
gfloat available_height, available_width;
gfloat natural_width, natural_height;
gfloat ratio_width, ratio_height, ratio_child;
available_width = avail_space.x2 - avail_space.x1;
available_height = avail_space.y2 - avail_space.y1;
clutter_actor_get_preferred_size (child,
NULL, NULL,
&natural_width,
&natural_height);
ratio_child = natural_width / natural_height;
ratio_width = available_width / natural_width;
ratio_height = available_height / natural_height;
if (ratio_width > ratio_height)
{
natural_width = available_width;
natural_height = natural_width / ratio_child;
}
else
{
natural_height = available_height;
natural_width = ratio_child * natural_height;
}
child_box.x1 = (available_width - natural_width) / 2;
child_box.y1 = (available_height - natural_height) / 2;
child_box.x2 = natural_width;
child_box.y2 = natural_height;
clutter_actor_allocate (child, &child_box, flags);
continue;
}
/* when "fit" is set, fill properties are ignored */
if (fit)
{
gfloat available_height, available_width, width, height;
gfloat min_width, natural_width, min_height, natural_height;
ClutterRequestMode request_mode;
available_height = avail_space.y2 - avail_space.y1;
available_width = avail_space.x2 - avail_space.x1;
request_mode = clutter_actor_get_request_mode (child);
if (request_mode == CLUTTER_REQUEST_HEIGHT_FOR_WIDTH)
{
clutter_actor_get_preferred_width (child, available_height,
&min_width,
&natural_width);
width = CLAMP (natural_width, min_width, available_width);
clutter_actor_get_preferred_height (child, width,
&min_height,
&natural_height);
height = CLAMP (natural_height, min_height, available_height);
}
else
{
clutter_actor_get_preferred_height (child, available_width,
&min_height,
&natural_height);
height = CLAMP (natural_height, min_height, available_height);
clutter_actor_get_preferred_width (child, height,
&min_width,
&natural_width);
width = CLAMP (natural_width, min_width, available_width);
}
child_box.x1 = 0;
child_box.y1 = 0;
switch (x_align)
{
case MX_ALIGN_START:
break;
case MX_ALIGN_MIDDLE:
child_box.x1 += (gint)(available_width / 2 - width / 2);
break;
case MX_ALIGN_END:
child_box.x1 = avail_space.x2 - width;
break;
}
switch (y_align)
{
case MX_ALIGN_START:
break;
case MX_ALIGN_MIDDLE:
child_box.y1 += (gint)(available_height / 2 - height / 2);
break;
case MX_ALIGN_END:
child_box.y1 = avail_space.y2 - height;
break;
}
child_box.x2 = child_box.x1 + width;
child_box.y2 = child_box.y1 + height;
clutter_actor_allocate (child, &child_box, flags);
continue;
}
/* Adjust the available space when not filling, otherwise
* actors that support width-for-height or height-for-width
* allocation won't shrink correctly.
*/
if (!x_fill)
{
gfloat width;
clutter_actor_get_preferred_width (child, -1, NULL, &width);
switch (x_align)
{
case MX_ALIGN_START:
break;
case MX_ALIGN_MIDDLE:
child_box.x1 += (gint)((avail_space.x2 - avail_space.x1) / 2 -
width / 2);
break;
case MX_ALIGN_END:
child_box.x1 = avail_space.x2 - width;
break;
}
child_box.x2 = child_box.x1 + width;
if (child_box.x2 > avail_space.x2)
child_box.x2 = avail_space.x2;
if (child_box.x1 < avail_space.x1)
child_box.x1 = avail_space.x1;
}
if (!y_fill)
{
gfloat height;
clutter_actor_get_preferred_height (child, -1, NULL, &height);
switch (y_align)
{
case MX_ALIGN_START:
break;
case MX_ALIGN_MIDDLE:
child_box.y1 += (gint)((avail_space.y2 - avail_space.y1) / 2 -
height / 2);
break;
case MX_ALIGN_END:
child_box.y1 = avail_space.y2 - height;
break;
}
child_box.y2 = child_box.y1 + height;
if (child_box.y2 > avail_space.y2)
child_box.y2 = avail_space.y2;
if (child_box.y1 < avail_space.y1)
child_box.y1 = avail_space.y1;
}
mx_allocate_align_fill (child,
&child_box,
x_align,
y_align,
x_fill,
y_fill);
clutter_actor_allocate (child, &child_box, flags);
}
}
static void
mx_combo_box_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
MxComboBoxPrivate *priv = MX_COMBO_BOX (actor)->priv;
MxPadding padding;
gfloat x, y, width, height;
gfloat min_menu_h, nat_menu_h;
gfloat label_h;
gfloat nat_icon_h, icon_h, icon_w;
gfloat nat_marker_h, marker_h, marker_w;
ClutterActorBox childbox;
ClutterActor *menu, *stage;
CLUTTER_ACTOR_CLASS (mx_combo_box_parent_class)->allocate (actor, box,
flags);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
x = padding.left;
y = padding.top;
width = box->x2 - box->x1 - padding.left - padding.right;
height = box->y2 - box->y1 - padding.top - padding.bottom;
icon_w = marker_w = 0;
if (priv->icon)
{
/* Allocate the icon, if there is one, the space not used by the text */
clutter_actor_get_preferred_height (priv->icon, -1, NULL, &nat_icon_h);
if (height >= nat_icon_h)
{
icon_h = nat_icon_h;
clutter_actor_get_preferred_width (priv->icon, -1, NULL, &icon_w);
}
else
{
icon_h = height;
clutter_actor_get_preferred_width (priv->icon, icon_h, NULL, &icon_w);
}
childbox.x1 = (int)(x);
childbox.y1 = (int)(y + (height - icon_h) / 2);
childbox.x2 = (int)(x + icon_w);
childbox.y2 = (int)(childbox.y1 + icon_h);
clutter_actor_allocate (priv->icon, &childbox, flags);
icon_w += priv->spacing;
}
if (priv->marker)
{
clutter_actor_get_preferred_height (priv->marker, -1,
NULL, &nat_marker_h);
if (height >= nat_marker_h)
{
marker_h = nat_marker_h;
clutter_actor_get_preferred_width (priv->marker, -1, NULL,
&marker_w);
}
else
{
marker_h = height;
clutter_actor_get_preferred_width (priv->marker, marker_h,
NULL, &marker_w);
}
childbox.x2 = (int)(x + width);
childbox.x1 = (int)(childbox.x2 - marker_w);
childbox.y1 = (int)(y + (height - marker_h) / 2);
childbox.y2 = (int)(childbox.y1 + marker_h);
clutter_actor_allocate (priv->marker, &childbox, flags);
marker_w += priv->spacing;
}
clutter_actor_get_preferred_height (priv->label, -1, NULL, &label_h);
childbox.x1 = (int)(x + icon_w);
childbox.y1 = (int)(y + (height / 2 - label_h / 2));
childbox.x2 = (int)(x + width - marker_w);
childbox.y2 = (int)(childbox.y1 + label_h);
clutter_actor_allocate (priv->label, &childbox, flags);
menu = (ClutterActor*) mx_widget_get_menu (MX_WIDGET (actor));
clutter_actor_get_preferred_height (menu, (box->x2 - box->x1), &min_menu_h,
&nat_menu_h);
childbox.x1 = 0;
childbox.x2 = (box->x2 - box->x1);
childbox.y1 = (box->y2 - box->y1);
childbox.y2 = childbox.y1 + nat_menu_h;
stage = clutter_actor_get_stage (actor);
if (stage != NULL)
{
ClutterVertex point = { 0, };
gfloat stage_w, stage_h, combo_h = box->y2 - box->y1;
clutter_actor_get_size (stage, &stage_w, &stage_h);
point.y = combo_h + nat_menu_h;
clutter_actor_apply_transform_to_point (actor, &point, &point);
/* If the menu would appear off the stage, flip it around. */
if ((point.y < 0) || (point.y >= stage_h))
{
childbox.y1 = -nat_menu_h;
point.y = -nat_menu_h;
clutter_actor_apply_transform_to_point (actor, &point, &point);
/* if the menu would still appear out of the stage, force
* it to appear on the top of the stage.
*/
if (point.y < 0)
{
gfloat xactor, yactor;
clutter_actor_get_transformed_position (actor, &xactor,
&yactor);
childbox.y1 = -yactor;
}
}
point.y = childbox.y1 + nat_menu_h;
clutter_actor_apply_transform_to_point (actor, &point, &point);
if (point.y >= stage_h)
{
gfloat xactor, yactor;
clutter_actor_get_transformed_position (actor, &xactor, &yactor);
/*
* clamp so that the menu doesn't appear out of the screen
*/
clutter_actor_transform_stage_point (actor, xactor, stage_h,
NULL, &childbox.y2);
/*
* The previous transformation can lead to negative height
* allocation if the top-left corner of the menu is already
* flipped around. This happens when you put a combobox deep
* enough in a scrollview taller that the stage.
*/
childbox.y2 = MAX (childbox.y1, childbox.y2);
}
else
{
childbox.y2 = childbox.y1 + nat_menu_h;
}
}
clutter_actor_allocate (menu, &childbox, flags);
}
static void
st_scroll_view_get_preferred_height (ClutterActor *actor,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p)
{
StScrollViewPrivate *priv = ST_SCROLL_VIEW (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
gboolean account_for_hscrollbar = FALSE;
gfloat min_height = 0, natural_height;
gfloat child_min_height, child_natural_height;
gfloat child_min_width;
gfloat sb_width;
if (!priv->child)
return;
st_theme_node_adjust_for_width (theme_node, &for_width);
clutter_actor_get_preferred_width (priv->child, -1,
&child_min_width, NULL);
if (min_height_p)
*min_height_p = 0;
sb_width = get_scrollbar_width (ST_SCROLL_VIEW (actor), -1);
switch (priv->vscrollbar_policy)
{
case GTK_POLICY_NEVER:
break;
case GTK_POLICY_ALWAYS:
case GTK_POLICY_AUTOMATIC:
/* We've requested space for the scrollbar, subtract it back out */
for_width -= sb_width;
break;
}
switch (priv->hscrollbar_policy)
{
case GTK_POLICY_NEVER:
account_for_hscrollbar = FALSE;
break;
case GTK_POLICY_ALWAYS:
account_for_hscrollbar = TRUE;
break;
case GTK_POLICY_AUTOMATIC:
account_for_hscrollbar = for_width < child_min_width;
break;
}
clutter_actor_get_preferred_height (priv->child, for_width,
&child_min_height, &child_natural_height);
natural_height = child_natural_height;
switch (priv->vscrollbar_policy)
{
case GTK_POLICY_NEVER:
min_height = child_min_height;
break;
case GTK_POLICY_ALWAYS:
case GTK_POLICY_AUTOMATIC:
/* Should theoretically use the min height of the vscrollbar,
* but that's not cleanly defined at the moment */
min_height = 0;
break;
}
if (account_for_hscrollbar)
{
float sb_height = get_scrollbar_height (ST_SCROLL_VIEW (actor), for_width);
min_height += sb_height;
natural_height += sb_height;
}
if (min_height_p)
*min_height_p = min_height;
if (natural_height_p)
*natural_height_p = natural_height;
st_theme_node_adjust_preferred_height (theme_node, min_height_p, natural_height_p);
}
static void
penge_calendar_pane_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
PengeCalendarPanePrivate *priv = GET_PRIVATE (actor);
gfloat events_nat_h, tasks_nat_h, events_header_nat_h, tasks_header_nat_h;
gfloat width, height, remaining_height, last_y;
gfloat tasks_available_h, events_available_h;
ClutterActorBox child_box;
MxPadding padding = { 0, };
if (CLUTTER_ACTOR_CLASS (penge_calendar_pane_parent_class)->allocate)
CLUTTER_ACTOR_CLASS (penge_calendar_pane_parent_class)->allocate (actor, box, flags);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
width = box->x2 - box->x1;
height = box->y2 - box->y1;
clutter_actor_get_preferred_height (CLUTTER_ACTOR (priv->events_header_table),
width,
NULL,
&events_header_nat_h);
clutter_actor_get_preferred_height (CLUTTER_ACTOR (priv->events_pane),
width,
NULL,
&events_nat_h);
clutter_actor_get_preferred_height (CLUTTER_ACTOR (priv->tasks_header_table),
width,
NULL,
&tasks_header_nat_h);
clutter_actor_get_preferred_height (CLUTTER_ACTOR (priv->tasks_pane),
width,
NULL,
&tasks_nat_h);
child_box.x1 = padding.left;
child_box.x2 = width - padding.right;
child_box.y1 = padding.top;
child_box.y2 = child_box.y1 + events_header_nat_h;
last_y = child_box.y2;
clutter_actor_allocate (CLUTTER_ACTOR (priv->events_header_table),
&child_box,
flags);
remaining_height = height - padding.top - padding.bottom -
events_header_nat_h - tasks_header_nat_h;
if (tasks_nat_h <= (remaining_height / 2.0))
{
tasks_available_h = tasks_nat_h;
} else {
tasks_available_h = (remaining_height / 2.0);
}
events_available_h = remaining_height - tasks_available_h;
if (events_available_h > events_nat_h)
{
tasks_available_h += (tasks_available_h - events_nat_h);
events_available_h = events_nat_h;
}
child_box.x1 = padding.left;
child_box.x2 = width - padding.right;
child_box.y1 = last_y;
child_box.y2 = child_box.y1 + (int)events_available_h;
last_y = child_box.y2;
clutter_actor_allocate (CLUTTER_ACTOR (priv->events_pane),
&child_box,
flags);
child_box.x1 = padding.left;
child_box.x2 = width - padding.right;
child_box.y1 = last_y;
child_box.y2 = child_box.y1 + tasks_header_nat_h;
last_y = child_box.y2;
clutter_actor_allocate (CLUTTER_ACTOR (priv->tasks_header_table),
&child_box,
flags);
child_box.x1 = padding.left;
child_box.x2 = width - padding.right;
child_box.y1 = last_y;
child_box.y2 = child_box.y1 + (int)tasks_available_h;
clutter_actor_allocate (CLUTTER_ACTOR (priv->tasks_pane),
&child_box,
flags);
}
static void
st_entry_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StEntryPrivate *priv = ST_ENTRY_PRIV (actor);
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorClass *parent_class;
ClutterActorBox content_box, child_box, icon_box;
gfloat icon_w, icon_h;
gfloat entry_h, min_h, pref_h, avail_h;
parent_class = CLUTTER_ACTOR_CLASS (st_entry_parent_class);
parent_class->allocate (actor, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
avail_h = content_box.y2 - content_box.y1;
child_box.x1 = content_box.x1;
child_box.x2 = content_box.x2;
if (priv->primary_icon)
{
clutter_actor_get_preferred_width (priv->primary_icon,
-1, NULL, &icon_w);
clutter_actor_get_preferred_height (priv->primary_icon,
-1, NULL, &icon_h);
icon_box.x1 = content_box.x1;
icon_box.x2 = icon_box.x1 + icon_w;
icon_box.y1 = (int) (content_box.y1 + avail_h / 2 - icon_h / 2);
icon_box.y2 = icon_box.y1 + icon_h;
clutter_actor_allocate (priv->primary_icon,
&icon_box,
flags);
/* reduce the size for the entry */
child_box.x1 += icon_w + priv->spacing;
}
if (priv->secondary_icon)
{
clutter_actor_get_preferred_width (priv->secondary_icon,
-1, NULL, &icon_w);
clutter_actor_get_preferred_height (priv->secondary_icon,
-1, NULL, &icon_h);
icon_box.x2 = content_box.x2;
icon_box.x1 = icon_box.x2 - icon_w;
icon_box.y1 = (int) (content_box.y1 + avail_h / 2 - icon_h / 2);
icon_box.y2 = icon_box.y1 + icon_h;
clutter_actor_allocate (priv->secondary_icon,
&icon_box,
flags);
/* reduce the size for the entry */
child_box.x2 -= icon_w - priv->spacing;
}
clutter_actor_get_preferred_height (priv->entry, child_box.x2 - child_box.x1,
&min_h, &pref_h);
entry_h = CLAMP (pref_h, min_h, avail_h);
child_box.y1 = (int) (content_box.y1 + avail_h / 2 - entry_h / 2);
child_box.y2 = child_box.y1 + entry_h;
clutter_actor_allocate (priv->entry, &child_box, flags);
}
/* Allocate position and size of actor and its children */
static void _xfdashboard_viewpad_allocate(ClutterActor *self,
const ClutterActorBox *inBox,
ClutterAllocationFlags inFlags)
{
XfdashboardViewpadPrivate *priv=XFDASHBOARD_VIEWPAD(self)->priv;
ClutterActorClass *actorClass=CLUTTER_ACTOR_CLASS(xfdashboard_viewpad_parent_class);
gfloat viewWidth, viewHeight;
gfloat vScrollbarWidth, vScrollbarHeight;
gfloat hScrollbarWidth, hScrollbarHeight;
gboolean hScrollbarVisible, vScrollbarVisible;
ClutterActorBox *box;
gfloat x, y, w, h;
/* Chain up to store the allocation of the actor */
if(actorClass->allocate) actorClass->allocate(self, inBox, inFlags);
/* Initialize largest possible allocation for view and determine
* real size of view to show. The real size is used to determine
* scroll bar visibility if policy is automatic */
viewWidth=clutter_actor_box_get_width(inBox);
viewHeight=clutter_actor_box_get_height(inBox);
/* Determine visibility of scroll bars */
hScrollbarVisible=FALSE;
if(priv->hScrollbarPolicy==XFDASHBOARD_POLICY_ALWAYS ||
(priv->hScrollbarPolicy==XFDASHBOARD_POLICY_AUTOMATIC &&
xfdashboard_scrollbar_get_range(XFDASHBOARD_SCROLLBAR(priv->hScrollbar))>viewWidth))
{
hScrollbarVisible=TRUE;
}
if(xfdashboard_view_get_fit_mode(XFDASHBOARD_VIEW(priv->activeView))==XFDASHBOARD_FIT_MODE_HORIZONTAL ||
xfdashboard_view_get_fit_mode(XFDASHBOARD_VIEW(priv->activeView))==XFDASHBOARD_FIT_MODE_BOTH)
{
hScrollbarVisible=FALSE;
}
vScrollbarVisible=FALSE;
if(priv->vScrollbarPolicy==XFDASHBOARD_POLICY_ALWAYS ||
(priv->vScrollbarPolicy==XFDASHBOARD_POLICY_AUTOMATIC &&
xfdashboard_scrollbar_get_range(XFDASHBOARD_SCROLLBAR(priv->vScrollbar))>viewHeight))
{
vScrollbarVisible=TRUE;
}
if(xfdashboard_view_get_fit_mode(XFDASHBOARD_VIEW(priv->activeView))==XFDASHBOARD_FIT_MODE_VERTICAL ||
xfdashboard_view_get_fit_mode(XFDASHBOARD_VIEW(priv->activeView))==XFDASHBOARD_FIT_MODE_BOTH)
{
vScrollbarVisible=FALSE;
}
/* Set allocation for visible scroll bars */
vScrollbarWidth=0.0f;
vScrollbarHeight=viewHeight;
clutter_actor_get_preferred_width(priv->vScrollbar, -1, NULL, &vScrollbarWidth);
hScrollbarWidth=viewWidth;
hScrollbarHeight=0.0f;
clutter_actor_get_preferred_height(priv->hScrollbar, -1, NULL, &hScrollbarHeight);
if(hScrollbarVisible && vScrollbarVisible)
{
vScrollbarHeight-=hScrollbarHeight;
hScrollbarWidth-=vScrollbarWidth;
}
if(vScrollbarVisible==FALSE) box=clutter_actor_box_new(0, 0, 0, 0);
else box=clutter_actor_box_new(viewWidth-vScrollbarWidth, 0, viewWidth, vScrollbarHeight);
clutter_actor_allocate(priv->vScrollbar, box, inFlags);
clutter_actor_box_free(box);
if(hScrollbarVisible==FALSE) box=clutter_actor_box_new(0, 0, 0, 0);
else box=clutter_actor_box_new(0, viewHeight-hScrollbarHeight, hScrollbarWidth, viewHeight);
clutter_actor_allocate(priv->hScrollbar, box, inFlags);
clutter_actor_box_free(box);
/* Reduce allocation for view by any visible scroll bar
* and set allocation and clipping of view
*/
if(priv->activeView)
{
/* Set allocation */
if(vScrollbarVisible) viewWidth-=vScrollbarWidth;
if(hScrollbarVisible) viewHeight-=hScrollbarHeight;
x=y=0.0f;
if(clutter_actor_has_clip(CLUTTER_ACTOR(priv->activeView)))
{
clutter_actor_get_clip(CLUTTER_ACTOR(priv->activeView), &x, &y, NULL, NULL);
}
switch(xfdashboard_view_get_fit_mode(XFDASHBOARD_VIEW(priv->activeView)))
{
case XFDASHBOARD_FIT_MODE_BOTH:
w=viewWidth;
h=viewHeight;
break;
case XFDASHBOARD_FIT_MODE_HORIZONTAL:
w=viewWidth;
clutter_actor_get_preferred_height(CLUTTER_ACTOR(priv->activeView), w, NULL, &h);
break;
case XFDASHBOARD_FIT_MODE_VERTICAL:
h=viewHeight;
clutter_actor_get_preferred_width(CLUTTER_ACTOR(priv->activeView), h, NULL, &w);
break;
default:
clutter_actor_get_preferred_size(CLUTTER_ACTOR(priv->activeView), NULL, NULL, &w, &h);
break;
}
box=clutter_actor_box_new(0, 0, w, h);
clutter_actor_allocate(CLUTTER_ACTOR(priv->activeView), box, inFlags);
clutter_actor_box_free(box);
clutter_actor_set_clip(CLUTTER_ACTOR(priv->activeView), x, y, viewWidth, viewHeight);
}
/* Only set value if it changes */
if(priv->hScrollbarVisible!=hScrollbarVisible)
{
/* Set new value */
priv->hScrollbarVisible=hScrollbarVisible;
/* Notify about property change */
g_object_notify_by_pspec(G_OBJECT(self), XfdashboardViewpadProperties[PROP_HSCROLLBAR_VISIBLE]);
}
if(priv->vScrollbarVisible!=vScrollbarVisible)
{
/* Set new value */
priv->vScrollbarVisible=vScrollbarVisible;
/* Notify about property change */
g_object_notify_by_pspec(G_OBJECT(self), XfdashboardViewpadProperties[PROP_VSCROLLBAR_VISIBLE]);
}
}
static void
mx_combo_box_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
MxComboBoxPrivate *priv = MX_COMBO_BOX (actor)->priv;
MxPadding padding;
gfloat x, y, width, height;
gfloat min_menu_h, nat_menu_h;
gfloat label_h;
gfloat nat_icon_h, icon_h, icon_w;
gfloat nat_marker_h, marker_h, marker_w;
ClutterActorBox childbox;
ClutterActor *menu, *stage;
CLUTTER_ACTOR_CLASS (mx_combo_box_parent_class)->allocate (actor, box,
flags);
mx_widget_get_padding (MX_WIDGET (actor), &padding);
x = padding.left;
y = padding.top;
width = box->x2 - box->x1 - padding.left - padding.right;
height = box->y2 - box->y1 - padding.top - padding.bottom;
icon_w = marker_w = 0;
if (priv->icon)
{
/* Allocate the icon, if there is one, the space not used by the text */
clutter_actor_get_preferred_height (priv->icon, -1, NULL, &nat_icon_h);
if (height >= nat_icon_h)
{
icon_h = nat_icon_h;
clutter_actor_get_preferred_width (priv->icon, -1, NULL, &icon_w);
}
else
{
icon_h = height;
clutter_actor_get_preferred_width (priv->icon, icon_h, NULL, &icon_w);
}
childbox.x1 = (int)(x);
childbox.y1 = (int)(y + (height - icon_h) / 2);
childbox.x2 = (int)(x + icon_w);
childbox.y2 = (int)(childbox.y1 + icon_h);
clutter_actor_allocate (priv->icon, &childbox, flags);
icon_w += priv->spacing;
}
if (priv->marker)
{
clutter_actor_get_preferred_height (priv->marker, -1,
NULL, &nat_marker_h);
if (height >= nat_marker_h)
{
marker_h = nat_marker_h;
clutter_actor_get_preferred_width (priv->marker, -1, NULL, &marker_w);
}
else
{
marker_h = height;
clutter_actor_get_preferred_width (priv->marker, marker_h,
NULL, &marker_w);
}
childbox.x2 = (int)(x + width);
childbox.x1 = (int)(childbox.x2 - marker_w);
childbox.y1 = (int)(y + (height - marker_h) / 2);
childbox.y2 = (int)(childbox.y1 + marker_h);
clutter_actor_allocate (priv->marker, &childbox, flags);
marker_w += priv->spacing;
}
clutter_actor_get_preferred_height (priv->label, -1, NULL, &label_h);
childbox.x1 = (int)(x + icon_w);
childbox.y1 = (int)(y + (height / 2 - label_h / 2));
childbox.x2 = (int)(x + width - marker_w);
childbox.y2 = (int)(childbox.y1 + label_h);
clutter_actor_allocate (priv->label, &childbox, flags);
menu = (ClutterActor*) mx_widget_get_menu (MX_WIDGET (actor));
clutter_actor_get_preferred_height (menu, (box->x2 - box->x1), &min_menu_h,
&nat_menu_h);
childbox.x1 = 0;
childbox.x2 = (box->x2 - box->x1);
childbox.y1 = (box->y2 - box->y1);
stage = clutter_actor_get_stage (actor);
if (stage != NULL)
{
ClutterVertex point = { 0, };
gfloat stage_w, stage_h, combo_h = box->y2 - box->y1;
clutter_actor_get_size (stage, &stage_w, &stage_h);
point.y = combo_h + nat_menu_h;
clutter_actor_apply_transform_to_point (actor, &point, &point);
/* If the menu would appear off the stage, flip it around. */
if ((point.x < 0) || (point.x >= stage_w) ||
(point.y < 0) || (point.y >= stage_h))
{
childbox.y1 = -nat_menu_h;
}
}
childbox.y2 = childbox.y1 + nat_menu_h;
clutter_actor_allocate (menu, &childbox, flags);
}
static void
clutter_flow_layout_allocate (ClutterLayoutManager *manager,
ClutterContainer *container,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
GList *l, *children = clutter_container_get_children (container);
gfloat avail_width, avail_height;
gfloat item_x, item_y;
gint line_item_count;
gint items_per_line;
gint line_index;
if (children == NULL)
return;
clutter_actor_box_get_size (allocation, &avail_width, &avail_height);
items_per_line = compute_lines (CLUTTER_FLOW_LAYOUT (manager),
avail_width, avail_height);
item_x = item_y = 0;
line_item_count = 0;
line_index = 0;
for (l = children; l != NULL; l = l->next)
{
ClutterActor *child = l->data;
ClutterActorBox child_alloc;
gfloat item_width, item_height;
gfloat new_x, new_y;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
new_x = new_y = 0;
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL)
{
if (line_item_count == items_per_line && line_item_count > 0)
{
item_y += g_array_index (priv->line_natural,
gfloat,
line_index);
if (line_index >= 0)
item_y += priv->row_spacing;
line_item_count = 0;
line_index += 1;
item_x = 0;
}
new_x = ((line_item_count + 1) * (avail_width + priv->col_spacing))
/ items_per_line;
item_width = new_x - item_x - priv->col_spacing;
item_height = g_array_index (priv->line_natural,
gfloat,
line_index);
if (!priv->is_homogeneous)
{
gfloat child_min, child_natural;
clutter_actor_get_preferred_width (child, item_height,
&child_min,
&child_natural);
item_width = MIN (item_width, child_natural);
clutter_actor_get_preferred_height (child, item_width,
&child_min,
&child_natural);
item_height = MIN (item_height, child_natural);
}
}
else
{
if (line_item_count == items_per_line && line_item_count > 0)
{
item_x += g_array_index (priv->line_natural,
gfloat,
line_index);
if (line_index >= 0)
item_x += priv->col_spacing;
line_item_count = 0;
line_index += 1;
item_y = 0;
}
new_y = ((line_item_count + 1) * (avail_height + priv->row_spacing))
/ items_per_line;
item_height = new_y - item_y - priv->row_spacing;
item_width = g_array_index (priv->line_natural,
gfloat,
line_index);
if (!priv->is_homogeneous)
{
gfloat child_min, child_natural;
clutter_actor_get_preferred_width (child, item_height,
&child_min,
&child_natural);
item_width = MIN (item_width, child_natural);
clutter_actor_get_preferred_height (child, item_width,
&child_min,
&child_natural);
item_height = MIN (item_height, child_natural);
}
}
CLUTTER_NOTE (LAYOUT,
"flow[line:%d, item:%d/%d] ="
"{ %.2f, %.2f, %.2f, %.2f }",
line_index, line_item_count + 1, items_per_line,
item_x, item_y, item_width, item_height);
child_alloc.x1 = ceil (item_x);
child_alloc.y1 = ceil (item_y);
child_alloc.x2 = ceil (child_alloc.x1 + item_width);
child_alloc.y2 = ceil (child_alloc.y1 + item_height);
clutter_actor_allocate (child, &child_alloc, flags);
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL)
item_x = new_x;
else
item_y = new_y;
line_item_count += 1;
}
g_list_free (children);
}
static void
clutter_flow_layout_allocate (ClutterLayoutManager *manager,
ClutterContainer *container,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
ClutterActor *actor, *child;
ClutterActorIter iter;
gfloat x_off, y_off;
gfloat avail_width, avail_height;
gfloat item_x, item_y;
gint line_item_count;
gint items_per_line;
gint line_index;
actor = CLUTTER_ACTOR (container);
if (clutter_actor_get_n_children (actor) == 0)
return;
clutter_actor_box_get_origin (allocation, &x_off, &y_off);
clutter_actor_box_get_size (allocation, &avail_width, &avail_height);
/* blow the cached preferred size and re-compute with the given
* available size in case the FlowLayout wasn't given the exact
* size it requested
*/
if ((priv->req_width >= 0 && avail_width != priv->req_width) ||
(priv->req_height >= 0 && avail_height != priv->req_height))
{
clutter_flow_layout_get_preferred_width (manager, container,
avail_height,
NULL, NULL);
clutter_flow_layout_get_preferred_height (manager, container,
avail_width,
NULL, NULL);
}
items_per_line = compute_lines (CLUTTER_FLOW_LAYOUT (manager),
avail_width, avail_height);
item_x = x_off;
item_y = y_off;
line_item_count = 0;
line_index = 0;
clutter_actor_iter_init (&iter, actor);
while (clutter_actor_iter_next (&iter, &child))
{
ClutterActorBox child_alloc;
gfloat item_width, item_height;
gfloat new_x, new_y;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
new_x = new_y = 0;
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL)
{
if (line_item_count == items_per_line && line_item_count > 0)
{
item_y += g_array_index (priv->line_natural,
gfloat,
line_index);
if (line_index >= 0)
item_y += priv->row_spacing;
line_item_count = 0;
line_index += 1;
item_x = x_off;
}
new_x = x_off + ((line_item_count + 1) * (avail_width + priv->col_spacing))
/ items_per_line;
item_width = new_x - item_x - priv->col_spacing;
item_height = g_array_index (priv->line_natural,
gfloat,
line_index);
if (!priv->is_homogeneous)
{
gfloat child_min, child_natural;
clutter_actor_get_preferred_width (child, item_height,
&child_min,
&child_natural);
item_width = MIN (item_width, child_natural);
clutter_actor_get_preferred_height (child, item_width,
&child_min,
&child_natural);
item_height = MIN (item_height, child_natural);
}
}
else
{
if (line_item_count == items_per_line && line_item_count > 0)
{
item_x += g_array_index (priv->line_natural,
gfloat,
line_index);
if (line_index >= 0)
item_x += priv->col_spacing;
line_item_count = 0;
line_index += 1;
item_y = y_off;
}
new_y = y_off + ((line_item_count + 1) * (avail_height + priv->row_spacing))
/ items_per_line;
item_height = new_y - item_y - priv->row_spacing;
item_width = g_array_index (priv->line_natural,
gfloat,
line_index);
if (!priv->is_homogeneous)
{
gfloat child_min, child_natural;
clutter_actor_get_preferred_width (child, item_height,
&child_min,
&child_natural);
item_width = MIN (item_width, child_natural);
clutter_actor_get_preferred_height (child, item_width,
&child_min,
&child_natural);
item_height = MIN (item_height, child_natural);
}
}
CLUTTER_NOTE (LAYOUT,
"flow[line:%d, item:%d/%d] ="
"{ %.2f, %.2f, %.2f, %.2f }",
line_index, line_item_count + 1, items_per_line,
item_x, item_y, item_width, item_height);
child_alloc.x1 = ceil (item_x);
child_alloc.y1 = ceil (item_y);
child_alloc.x2 = ceil (child_alloc.x1 + item_width);
child_alloc.y2 = ceil (child_alloc.y1 + item_height);
clutter_actor_allocate (child, &child_alloc, flags);
if (priv->orientation == CLUTTER_FLOW_HORIZONTAL)
item_x = new_x;
else
item_y = new_y;
line_item_count += 1;
}
}
static void
clutter_flow_layout_get_preferred_width (ClutterLayoutManager *manager,
ClutterContainer *container,
gfloat for_height,
gfloat *min_width_p,
gfloat *nat_width_p)
{
ClutterFlowLayoutPrivate *priv = CLUTTER_FLOW_LAYOUT (manager)->priv;
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;
ClutterActorIter iter;
gfloat item_y;
n_rows = get_rows (CLUTTER_FLOW_LAYOUT (manager), for_height);
total_min_width = 0;
total_natural_width = 0;
line_min_width = 0;
line_natural_width = 0;
line_item_count = 0;
line_count = 0;
item_y = 0;
actor = CLUTTER_ACTOR (container);
/* clear the line width arrays */
if (priv->line_min != NULL)
g_array_free (priv->line_min, TRUE);
if (priv->line_natural != NULL)
g_array_free (priv->line_natural, TRUE);
priv->line_min = g_array_sized_new (FALSE, FALSE,
sizeof (gfloat),
16);
priv->line_natural = g_array_sized_new (FALSE, FALSE,
sizeof (gfloat),
16);
if (clutter_actor_get_n_children (actor) != 0)
line_count = 1;
max_min_width = max_natural_width = 0;
clutter_actor_iter_init (&iter, actor);
while (clutter_actor_iter_next (&iter, &child))
{
gfloat child_min, child_natural;
gfloat new_y, item_height;
if (!CLUTTER_ACTOR_IS_VISIBLE (child))
continue;
if (priv->orientation == CLUTTER_FLOW_VERTICAL && for_height > 0)
{
clutter_actor_get_preferred_height (child, -1,
&child_min,
&child_natural);
if ((priv->snap_to_grid && line_item_count == n_rows) ||
(!priv->snap_to_grid && item_y + child_natural > for_height))
{
total_min_width += line_min_width;
total_natural_width += line_natural_width;
g_array_append_val (priv->line_min,
line_min_width);
g_array_append_val (priv->line_natural,
line_natural_width);
line_min_width = line_natural_width = 0;
line_item_count = 0;
line_count += 1;
item_y = 0;
}
if (priv->snap_to_grid)
{
new_y = ((line_item_count + 1) * (for_height + priv->row_spacing))
/ n_rows;
item_height = new_y - item_y - priv->row_spacing;
}
else
{
new_y = item_y + child_natural + priv->row_spacing;
item_height = child_natural;
}
clutter_actor_get_preferred_width (child, item_height,
&child_min,
&child_natural);
line_min_width = MAX (line_min_width, child_min);
line_natural_width = MAX (line_natural_width, child_natural);
item_y = new_y;
line_item_count += 1;
max_min_width = MAX (max_min_width, line_min_width);
max_natural_width = MAX (max_natural_width, line_natural_width);
}
else
{
clutter_actor_get_preferred_width (child, for_height,
&child_min,
&child_natural);
max_min_width = MAX (max_min_width, child_min);
max_natural_width = MAX (max_natural_width, child_natural);
total_min_width += max_min_width;
total_natural_width += max_natural_width;
line_count += 1;
}
}
priv->col_width = max_natural_width;
if (priv->max_col_width > 0 && priv->col_width > priv->max_col_width)
priv->col_width = MAX (priv->max_col_width, max_min_width);
if (priv->col_width < priv->min_col_width)
priv->col_width = priv->min_col_width;
if (priv->orientation == CLUTTER_FLOW_VERTICAL && for_height > 0)
{
/* if we have a non-full row we need to add it */
if (line_item_count > 0)
{
total_min_width += line_min_width;
total_natural_width += line_natural_width;
g_array_append_val (priv->line_min,
line_min_width);
g_array_append_val (priv->line_natural,
line_natural_width);
}
priv->line_count = line_count;
if (priv->line_count > 0)
{
gfloat total_spacing;
total_spacing = priv->col_spacing * (priv->line_count - 1);
total_min_width += total_spacing;
total_natural_width += total_spacing;
}
}
else
{
g_array_append_val (priv->line_min, line_min_width);
g_array_append_val (priv->line_natural, line_natural_width);
priv->line_count = line_count;
if (priv->line_count > 0)
{
gfloat total_spacing;
total_spacing = priv->col_spacing * (priv->line_count - 1);
total_min_width += total_spacing;
total_natural_width += total_spacing;
}
}
CLUTTER_NOTE (LAYOUT,
"Flow[w]: %d lines (%d per line): w [ %.2f, %.2f ] for h %.2f",
n_rows, priv->line_count,
total_min_width,
total_natural_width,
for_height);
priv->req_height = for_height;
if (min_width_p)
*min_width_p = max_min_width;
if (nat_width_p)
*nat_width_p = total_natural_width;
}
