static void
st_icon_allocate (ClutterActor *actor,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StIconPrivate *priv = ST_ICON (actor)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
clutter_actor_set_allocation (actor, box, flags);
if (priv->icon_texture)
{
ClutterActorBox content_box;
st_theme_node_get_content_box (theme_node, box, &content_box);
/* Center the texture in the allocation; scaling up the icon from the size
* we loaded it at is just a bad idea and probably accidental. Main downside
* of doing this is that it may not be obvious that they have to turn off
* fill to align the icon non-centered in the parent container.
*
* We don't use clutter_actor_allocate_align_fill() for a bit of efficiency
* and because we expect to get rid of the child actor in favor of a
* CoglTexture in the future.
*/
content_box.x1 = (int)(0.5 + content_box.x1 + (content_box.x2 - content_box.x1 - priv->icon_size) / 2.);
content_box.x2 = content_box.x1 + priv->icon_size;
content_box.y1 = (int)(0.5 + content_box.y1 + (content_box.y2 - content_box.y1 - priv->icon_size) / 2.);
content_box.y2 = content_box.y1 + priv->icon_size;
clutter_actor_allocate (priv->icon_texture, &content_box, flags);
}
}
static void
st_box_layout_paint (ClutterActor *actor)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
StBoxLayoutPrivate *priv = self->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
GList *l, *children;
gdouble x, y;
ClutterActorBox allocation_box;
ClutterActorBox content_box;
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
cogl_push_matrix ();
cogl_translate ((int)x, (int)y, 0);
}
CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->paint (actor);
if (x != 0 || y != 0)
{
cogl_pop_matrix ();
}
children = st_container_get_children_list (ST_CONTAINER (actor));
if (children == NULL)
return;
clutter_actor_get_allocation_box (actor, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
content_box.x1 += x;
content_box.y1 += y;
content_box.x2 += x;
content_box.y2 += y;
/* The content area forms the viewport into the scrolled contents, while
* the borders and background stay in place; after drawing the borders and
* background, we clip to the content area */
if (priv->hadjustment || priv->vadjustment)
cogl_clip_push_rectangle ((int)content_box.x1,
(int)content_box.y1,
(int)content_box.x2,
(int)content_box.y2);
for (l = children; l; l = g_list_next (l))
{
ClutterActor *child = (ClutterActor*) l->data;
if (CLUTTER_ACTOR_IS_VISIBLE (child))
clutter_actor_paint (child);
}
if (priv->hadjustment || priv->vadjustment)
cogl_clip_pop ();
}
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));
ClutterLayoutManager *layout = clutter_actor_get_layout_manager (actor);
ClutterActorBox content_box;
gfloat avail_width, avail_height, min_width, natural_width, min_height, natural_height;
CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->allocate (actor, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
clutter_actor_box_get_size (&content_box, &avail_width, &avail_height);
clutter_layout_manager_get_preferred_width (layout, CLUTTER_CONTAINER (actor),
avail_height,
&min_width, &natural_width);
clutter_layout_manager_get_preferred_height (layout, CLUTTER_CONTAINER (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);
}
}
static void
st_box_layout_paint (ClutterActor *actor)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
StBoxLayoutPrivate *priv = self->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
gdouble x, y;
ClutterActorBox allocation_box;
ClutterActorBox content_box;
ClutterActor *child;
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
cogl_push_matrix ();
cogl_translate ((int)x, (int)y, 0);
}
st_widget_paint_background (ST_WIDGET (actor));
if (x != 0 || y != 0)
{
cogl_pop_matrix ();
}
if (clutter_actor_get_n_children (actor) == 0)
return;
clutter_actor_get_allocation_box (actor, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
content_box.x1 += x;
content_box.y1 += y;
content_box.x2 += x;
content_box.y2 += y;
/* The content area forms the viewport into the scrolled contents, while
* the borders and background stay in place; after drawing the borders and
* background, we clip to the content area */
if (priv->hadjustment || priv->vadjustment)
cogl_clip_push_rectangle ((int)content_box.x1,
(int)content_box.y1,
(int)content_box.x2,
(int)content_box.y2);
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
clutter_actor_paint (child);
if (priv->hadjustment || priv->vadjustment)
cogl_clip_pop ();
}
static void
st_box_layout_pick (ClutterActor *actor,
const ClutterColor *color)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
StBoxLayoutPrivate *priv = self->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
gdouble x, y;
ClutterActorBox allocation_box;
ClutterActorBox content_box;
ClutterActor *child;
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
cogl_push_matrix ();
cogl_translate ((int)x, (int)y, 0);
}
CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->pick (actor, color);
if (x != 0 || y != 0)
{
cogl_pop_matrix ();
}
if (clutter_actor_get_n_children (actor) == 0)
return;
clutter_actor_get_allocation_box (actor, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
content_box.x1 += x;
content_box.y1 += y;
content_box.x2 += x;
content_box.y2 += y;
if (priv->hadjustment || priv->vadjustment)
cogl_clip_push_rectangle ((int)content_box.x1,
(int)content_box.y1,
(int)content_box.x2,
(int)content_box.y2);
for (child = clutter_actor_get_first_child (actor);
child != NULL;
child = clutter_actor_get_next_sibling (child))
clutter_actor_paint (child);
if (priv->hadjustment || priv->vadjustment)
cogl_clip_pop ();
}
static void
cinnamon_generic_container_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StThemeNode *theme_node;
ClutterActorBox content_box;
clutter_actor_set_allocation (self, box, flags);
theme_node = st_widget_get_theme_node (ST_WIDGET (self));
st_theme_node_get_content_box (theme_node, box, &content_box);
g_signal_emit (G_OBJECT (self), cinnamon_generic_container_signals[ALLOCATE], 0,
&content_box, flags);
}
static gboolean
st_box_layout_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
StBoxLayout *self = ST_BOX_LAYOUT (actor);
gdouble x, y;
StBoxLayoutPrivate *priv = self->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorBox allocation_box;
ClutterActorBox content_box;
ClutterVertex origin;
/* When have an adjustment we are clipped to the content box, so base
* our paint volume on that. */
if (priv->hadjustment || priv->vadjustment)
{
clutter_actor_get_allocation_box (actor, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
origin.x = content_box.x1 - allocation_box.x1;
origin.y = content_box.y1 - allocation_box.y2;
origin.z = 0.f;
clutter_paint_volume_set_width (volume, content_box.x2 - content_box.x1);
clutter_paint_volume_set_height (volume, content_box.y2 - content_box.y1);
}
else if (!CLUTTER_ACTOR_CLASS (st_box_layout_parent_class)->get_paint_volume (actor, volume))
return FALSE;
/* When scrolled, st_box_layout_apply_transform() includes the scroll offset
* and affects paint volumes. This is right for our children, but our paint volume
* is determined by our allocation and borders and doesn't scroll, so we need
* to reverse-compensate here, the same as we do when painting.
*/
get_border_paint_offsets (self, &x, &y);
if (x != 0 || y != 0)
{
clutter_paint_volume_get_origin (volume, &origin);
origin.x += x;
origin.y += y;
clutter_paint_volume_set_origin (volume, &origin);
}
return TRUE;
}
static void
sagarmatha_stack_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox content_box;
GList *children, *iter;
CLUTTER_ACTOR_CLASS (sagarmatha_stack_parent_class)->allocate (self, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
children = st_container_get_children_list (ST_CONTAINER (self));
for (iter = children; iter; iter = iter->next)
{
ClutterActor *actor = CLUTTER_ACTOR (iter->data);
ClutterActorBox child_box = content_box;
clutter_actor_allocate (actor, &child_box, flags);
}
}
static void
shell_stack_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox content_box;
ClutterActor *child;
clutter_actor_set_allocation (self, box, flags);
st_theme_node_get_content_box (theme_node, box, &content_box);
for (child = clutter_actor_get_first_child (self);
child != NULL;
child = clutter_actor_get_next_sibling (child))
{
ClutterActorBox child_box = content_box;
clutter_actor_allocate (child, &child_box, flags);
}
}
static void
st_table_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StTablePrivate *priv = ST_TABLE (self)->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox content_box;
clutter_actor_set_allocation (self, box, flags);
if (priv->n_cols < 1 || priv->n_rows < 1)
return;
st_theme_node_get_content_box (theme_node, box, &content_box);
if (priv->homogeneous)
st_table_homogeneous_allocate (self, &content_box, flags);
else
st_table_preferred_allocate (self, &content_box, flags);
}
static void
st_bin_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StBinPrivate *priv = ST_BIN (self)->priv;
CLUTTER_ACTOR_CLASS (st_bin_parent_class)->allocate (self, box,
flags);
if (priv->child)
{
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox childbox;
st_theme_node_get_content_box (theme_node, box, &childbox);
_st_allocate_fill (ST_WIDGET (self), priv->child, &childbox,
priv->x_align, priv->y_align,
priv->x_fill, priv->y_fill);
clutter_actor_allocate (priv->child, &childbox, flags);
}
}
static void
st_bin_allocate (ClutterActor *self,
const ClutterActorBox *box,
ClutterAllocationFlags flags)
{
StBinPrivate *priv = ST_BIN (self)->priv;
clutter_actor_set_allocation (self, box, flags);
if (priv->child && clutter_actor_is_visible (priv->child))
{
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox childbox;
gdouble x_align_f, y_align_f;
st_theme_node_get_content_box (theme_node, box, &childbox);
_st_get_align_factors (priv->x_align, priv->y_align,
&x_align_f, &y_align_f);
clutter_actor_allocate_align_fill (priv->child, &childbox,
x_align_f, y_align_f,
priv->x_fill, priv->y_fill,
flags);
}
}
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
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
st_drawing_area_paint (ClutterActor *self)
{
StDrawingArea *area = ST_DRAWING_AREA (self);
StDrawingAreaPrivate *priv = area->priv;
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (self));
ClutterActorBox allocation_box;
ClutterActorBox content_box;
int width, height;
CoglColor color;
guint8 paint_opacity;
(CLUTTER_ACTOR_CLASS (st_drawing_area_parent_class))->paint (self);
clutter_actor_get_allocation_box (self, &allocation_box);
st_theme_node_get_content_box (theme_node, &allocation_box, &content_box);
width = (int)(0.5 + content_box.x2 - content_box.x1);
height = (int)(0.5 + content_box.y2 - content_box.y1);
if (priv->material == COGL_INVALID_HANDLE)
priv->material = cogl_material_new ();
if (priv->texture != COGL_INVALID_HANDLE &&
(width != cogl_texture_get_width (priv->texture) ||
height != cogl_texture_get_height (priv->texture)))
{
cogl_handle_unref (priv->texture);
priv->texture = COGL_INVALID_HANDLE;
}
if (width > 0 && height > 0)
{
if (priv->texture == COGL_INVALID_HANDLE)
{
priv->texture = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NONE,
CLUTTER_CAIRO_FORMAT_ARGB32);
priv->needs_repaint = TRUE;
}
if (priv->needs_repaint)
{
cairo_surface_t *surface;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
priv->context = cairo_create (surface);
priv->in_repaint = TRUE;
priv->needs_repaint = FALSE;
g_signal_emit ((GObject*)area, st_drawing_area_signals[REPAINT], 0);
priv->in_repaint = FALSE;
cairo_destroy (priv->context);
priv->context = NULL;
cogl_texture_set_region (priv->texture, 0, 0, 0, 0, width, height, width, height,
CLUTTER_CAIRO_FORMAT_ARGB32,
cairo_image_surface_get_stride (surface),
cairo_image_surface_get_data (surface));
cairo_surface_destroy (surface);
}
}
cogl_material_set_layer (priv->material, 0, priv->texture);
if (priv->texture)
{
paint_opacity = clutter_actor_get_paint_opacity (self);
cogl_color_set_from_4ub (&color,
paint_opacity, paint_opacity, paint_opacity, paint_opacity);
cogl_material_set_color (priv->material, &color);
cogl_set_source (priv->material);
cogl_rectangle_with_texture_coords (content_box.x1, content_box.y1,
width, height,
0.0f, 0.0f, 1.0f, 1.0f);
}
}
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);
}
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
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, trough_box;
st_theme_node_get_content_box (theme_node, box, &content_box);
if (priv->vertical)
{
trough_box.x1 = content_box.x1;
trough_box.y1 = content_box.y1;
trough_box.x2 = content_box.x2;
trough_box.y2 = content_box.y2;
clutter_actor_allocate (priv->trough, &trough_box, flags);
}
else
{
trough_box.x1 = content_box.x1;
trough_box.y1 = content_box.y1;
trough_box.x2 = content_box.x2;
trough_box.y2 = content_box.y2;
clutter_actor_allocate (priv->trough, &trough_box, flags);
}
if (priv->adjustment)
{
float handle_size, position, avail_size;
gdouble value, lower, upper, page_size, increment, min_size, max_size;
ClutterActorBox handle_box = { 0, };
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;
handle_size = increment * avail_size;
handle_size = CLAMP (handle_size, min_size, max_size);
handle_box.x1 = content_box.x1;
handle_box.y1 = content_box.y1 + 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;
handle_size = increment * avail_size;
handle_size = CLAMP (handle_size, min_size, max_size);
handle_box.x1 = content_box.x1 + 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;
}
clutter_actor_allocate (priv->handle,
&handle_box,
flags);
}
}
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);
}
