static void
gtk_revealer_get_child_allocation (GtkRevealer *revealer,
GtkAllocation *allocation,
GtkAllocation *child_allocation)
{
GtkWidget *child;
GtkRevealerTransitionType transition;
g_return_if_fail (revealer != NULL);
g_return_if_fail (allocation != NULL);
child_allocation->x = 0;
child_allocation->y = 0;
child_allocation->width = allocation->width;
child_allocation->height = allocation->height;
child = gtk_bin_get_child (GTK_BIN (revealer));
if (child != NULL && gtk_widget_get_visible (child))
{
transition = effective_transition (revealer);
if (transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_LEFT ||
transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_RIGHT)
gtk_widget_get_preferred_width_for_height (child, child_allocation->height, NULL,
&child_allocation->width);
else
gtk_widget_get_preferred_height_for_width (child, child_allocation->width, NULL,
&child_allocation->height);
}
}
static void
gtk_application_window_real_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
gint menubar_height;
if (window->priv->menubar != NULL)
gtk_widget_get_preferred_height (window->priv->menubar, &menubar_height, NULL);
else
menubar_height = 0;
GTK_WIDGET_CLASS (gtk_application_window_parent_class)
->get_preferred_width_for_height (widget, height - menubar_height, minimum_width, natural_width);
if (window->priv->menubar != NULL)
{
gint menubar_min_width, menubar_nat_width;
gtk_widget_get_preferred_width_for_height (window->priv->menubar, menubar_height, &menubar_min_width, &menubar_nat_width);
*minimum_width = MAX (*minimum_width, menubar_min_width);
*natural_width = MAX (*natural_width, menubar_nat_width);
}
}
static void
gtk_application_window_real_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
gint menubar_height;
if (window->priv->menubar != NULL)
gtk_widget_get_preferred_height (window->priv->menubar, &menubar_height, NULL);
else
menubar_height = 0;
GTK_WIDGET_CLASS (gtk_application_window_parent_class)
->get_preferred_width_for_height (widget, height - menubar_height, minimum_width, natural_width);
if (window->priv->menubar != NULL)
{
gint menubar_min_width, menubar_nat_width;
gint border_width;
GtkBorder border = { 0 };
gtk_widget_get_preferred_width_for_height (window->priv->menubar, menubar_height, &menubar_min_width, &menubar_nat_width);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
_gtk_window_get_shadow_width (GTK_WINDOW (widget), &border);
menubar_min_width += 2 * border_width + border.left + border.right;
menubar_nat_width += 2 * border_width + border.left + border.right;
*minimum_width = MAX (*minimum_width, menubar_min_width);
*natural_width = MAX (*natural_width, menubar_nat_width);
}
}
static gint columns_gtk3_get_minfh_width(ColumnsChild *child)
{
gint ret;
gtk_widget_get_preferred_width_for_height(
child->widget, child->h, &ret, NULL);
return ret;
}
wxSize wxControl::DoGetBestSize() const
{
// Do not return any arbitrary default value...
wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
wxSize best;
if (m_wxwindow)
{
// this is not a native control, size_request is likely to be (0,0)
best = wxControlBase::DoGetBestSize();
}
else
{
GtkRequisition req;
#ifdef __WXGTK3__
if (gtk_widget_get_request_mode(m_widget) != GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH)
{
gtk_widget_get_preferred_height(m_widget, NULL, &req.height);
gtk_widget_get_preferred_width_for_height(m_widget, req.height, NULL, &req.width);
}
else
{
gtk_widget_get_preferred_width(m_widget, NULL, &req.width);
gtk_widget_get_preferred_height_for_width(m_widget, req.width, NULL, &req.height);
}
#else
GTK_WIDGET_GET_CLASS(m_widget)->size_request(m_widget, &req);
#endif
best.Set(req.width, req.height);
}
CacheBestSize(best);
return best;
}
/**
* gtk_widget_get_preferred_size:
* @widget: a #GtkWidget instance
* @minimum_size: (out) (allow-none): location for storing the minimum size, or %NULL
* @natural_size: (out) (allow-none): location for storing the natural size, or %NULL
*
* Retrieves the minimum and natural size of a widget, taking
* into account the widget's preference for height-for-width management.
*
* This is used to retrieve a suitable size by container widgets which do
* not impose any restrictions on the child placement. It can be used
* to deduce toplevel window and menu sizes as well as child widgets in
* free-form containers such as GtkLayout.
*
* <note><para>Handle with care. Note that the natural height of a height-for-width
* widget will generally be a smaller size than the minimum height, since the required
* height for the natural width is generally smaller than the required height for
* the minimum width.</para></note>
*
* Since: 3.0
*/
void
gtk_widget_get_preferred_size (GtkWidget *widget,
GtkRequisition *minimum_size,
GtkRequisition *natural_size)
{
gint min_width, nat_width;
gint min_height, nat_height;
g_return_if_fail (GTK_IS_WIDGET (widget));
if (gtk_widget_get_request_mode (widget) == GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH)
{
gtk_widget_get_preferred_width (widget, &min_width, &nat_width);
if (minimum_size)
{
minimum_size->width = min_width;
gtk_widget_get_preferred_height_for_width (widget, min_width,
&minimum_size->height, NULL);
}
if (natural_size)
{
natural_size->width = nat_width;
gtk_widget_get_preferred_height_for_width (widget, nat_width,
NULL, &natural_size->height);
}
}
else /* GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT or CONSTANT_SIZE */
{
gtk_widget_get_preferred_height (widget, &min_height, &nat_height);
if (minimum_size)
{
minimum_size->height = min_height;
gtk_widget_get_preferred_width_for_height (widget, min_height,
&minimum_size->width, NULL);
}
if (natural_size)
{
natural_size->height = nat_height;
gtk_widget_get_preferred_width_for_height (widget, nat_height,
NULL, &natural_size->width);
}
}
}
static void
gd_notification_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GdNotification *notification = GD_NOTIFICATION (widget);
GdNotificationPrivate *priv = notification->priv;
GtkBin *bin = GTK_BIN (widget);
gint child_min, child_nat, child_height;
GtkWidget *child;
GtkBorder padding;
gint minimum, natural;
get_padding_and_border (notification, &padding);
minimum = 0;
natural = 0;
child_height = height - SHADOW_OFFSET_Y - padding.top - padding.bottom;
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
{
gtk_widget_get_preferred_width_for_height (child, child_height,
&child_min, &child_nat);
minimum += child_min;
natural += child_nat;
}
if (priv->show_close_button)
{
gtk_widget_get_preferred_width_for_height (priv->close_button, child_height,
&child_min, &child_nat);
minimum += child_min;
natural += child_nat;
}
minimum += padding.left + padding.right + 2 * SHADOW_OFFSET_X;
natural += padding.left + padding.right + 2 * SHADOW_OFFSET_X;
if (minimum_width)
*minimum_width = minimum;
if (natural_width)
*natural_width = natural;
}
static void
gtk_notification_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkNotification *notification = GTK_NOTIFICATION (widget);
GtkNotificationPrivate *priv = notification->priv;
GtkBin *bin = GTK_BIN (widget);
GtkAllocation child_allocation;
GtkBorder padding;
GtkWidget *child;
int button_width;
gtk_widget_set_allocation (widget, allocation);
/* If somehow the notification changes while not hidden
and we're not animating, immediately follow the resize */
if (priv->animate_y > 0 &&
!priv->animate_timeout)
priv->animate_y = allocation->height;
get_padding_and_border (notification, &padding);
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (gtk_widget_get_window (widget),
allocation->x,
allocation->y,
allocation->width,
allocation->height);
gdk_window_move_resize (priv->bin_window,
0,
-allocation->height + priv->animate_y,
allocation->width,
allocation->height);
}
child_allocation.x = SHADOW_OFFSET_X + padding.left;
child_allocation.y = padding.top;
child_allocation.height = MAX (1, allocation->height - SHADOW_OFFSET_Y - padding.top - padding.bottom);
gtk_widget_get_preferred_width_for_height (priv->close_button, child_allocation.height,
NULL, &button_width);
child_allocation.width = MAX (1, allocation->width - 2 * SHADOW_OFFSET_X - padding.left - padding.right - button_width);
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
gtk_widget_size_allocate (child, &child_allocation);
child_allocation.x += child_allocation.width;
child_allocation.width = button_width;
gtk_widget_size_allocate (priv->close_button, &child_allocation);
}
/* Like get_group_sizes(), but gets height for width or width for height */
static GtkRequestedSize *
get_group_sizes_for_sizes(PSquare *self, GtkOrientation direction, GtkRequestedSize *perpendicular_sizes, unsigned n_groups)
{
PSquarePrivate *priv = P_SQUARE_PRIVATE(self);
/* Allocate an array for the size of each column/row */
GtkRequestedSize *sizes = g_new0(GtkRequestedSize, n_groups);
/* Get each child's size; set the width of each group
* to the maximum size of each child in that group */
unsigned count = 0;
GList *iter;
for(iter = priv->children; iter; iter = g_list_next(iter)) {
if(!gtk_widget_get_visible(iter->data))
continue;
int child_minimal, child_natural;
unsigned group_num;
if(direction == GTK_ORIENTATION_HORIZONTAL) {
gtk_widget_get_preferred_width_for_height(iter->data,
perpendicular_sizes[count / n_groups].minimum_size,
&child_minimal, &child_natural);
group_num = count % n_groups;
} else {
gtk_widget_get_preferred_height_for_width(iter->data,
perpendicular_sizes[count % n_groups].minimum_size,
&child_minimal, &child_natural);
group_num = count / n_groups;
}
sizes[group_num].minimum_size =
MAX(child_minimal, sizes[group_num].minimum_size);
sizes[group_num].natural_size =
MAX(child_natural, sizes[group_num].natural_size);
count++;
}
return sizes;
}
static void
gd_stack_get_preferred_width_for_height (GtkWidget* widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GdStack *stack = GD_STACK (widget);
GdStackPrivate *priv = stack->priv;
GdStackChildInfo *child_info;
GtkWidget *child;
gint child_min, child_nat;
GList *l;
*minimum_width = 0;
*natural_width = 0;
for (l = priv->children; l != NULL; l = l->next)
{
child_info = l->data;
child = child_info->widget;
if (!priv->homogeneous &&
(priv->visible_child != child_info &&
priv->last_visible_child != child_info))
continue;
if (gtk_widget_get_visible (child))
{
gtk_widget_get_preferred_width_for_height (child, height, &child_min, &child_nat);
*minimum_width = MAX (*minimum_width, child_min);
*natural_width = MAX (*natural_width, child_nat);
}
}
if (priv->last_visible_surface != NULL)
{
*minimum_width = MAX (*minimum_width, priv->last_visible_surface_allocation.width);
*natural_width = MAX (*natural_width, priv->last_visible_surface_allocation.width);
}
}
static void
gtk_revealer_get_child_allocation (GtkRevealer *revealer,
GtkAllocation *allocation,
GtkAllocation *child_allocation)
{
GtkWidget *child;
GtkRevealerTransitionType transition;
GtkBorder padding;
gint vertical_padding, horizontal_padding;
g_return_if_fail (revealer != NULL);
g_return_if_fail (allocation != NULL);
/* See explanation on gtk_revealer_real_size_allocate */
gtk_revealer_get_padding (revealer, &padding);
vertical_padding = padding.top + padding.bottom;
horizontal_padding = padding.left + padding.right;
child_allocation->x = 0;
child_allocation->y = 0;
child_allocation->width = 0;
child_allocation->height = 0;
child = gtk_bin_get_child (GTK_BIN (revealer));
if (child != NULL && gtk_widget_get_visible (child))
{
transition = effective_transition (revealer);
if (transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_LEFT ||
transition == GTK_REVEALER_TRANSITION_TYPE_SLIDE_RIGHT)
gtk_widget_get_preferred_width_for_height (child, MAX (0, allocation->height - vertical_padding), NULL,
&child_allocation->width);
else
gtk_widget_get_preferred_height_for_width (child, MAX (0, allocation->width - horizontal_padding), NULL,
&child_allocation->height);
}
child_allocation->width = MAX (child_allocation->width, allocation->width - horizontal_padding);
child_allocation->height = MAX (child_allocation->height, allocation->height - vertical_padding);
}
static void
greeter_menu_bar_size_allocate(GtkWidget* widget, GtkAllocation* allocation)
{
GList* item;
GList* shell_children;
GList* expand_nums = NULL;
guint visible_count = 0, expand_count = 0;
g_return_if_fail(allocation != NULL);
g_return_if_fail(GREETER_IS_MENU_BAR(widget));
gtk_widget_set_allocation(widget, allocation);
GtkPackDirection pack_direction = gtk_menu_bar_get_pack_direction(GTK_MENU_BAR(widget));
g_return_if_fail(pack_direction == GTK_PACK_DIRECTION_LTR || pack_direction == GTK_PACK_DIRECTION_RTL);
shell_children = gtk_container_get_children(GTK_CONTAINER(widget));
for(item = shell_children; item; item = g_list_next(item))
if(gtk_widget_get_visible(item->data))
{
if(gtk_widget_compute_expand(item->data, GTK_ORIENTATION_HORIZONTAL))
{
expand_nums = g_list_prepend(expand_nums, GINT_TO_POINTER(visible_count));
expand_count++;
}
visible_count++;
}
if(gtk_widget_get_realized(widget))
gdk_window_move_resize(gtk_widget_get_window(widget),
allocation->x, allocation->y,
allocation->width, allocation->height);
if(visible_count > 0)
{
GtkAllocation remaining_space;
GtkStyleContext* context = gtk_widget_get_style_context(widget);
GtkStateFlags flags = gtk_widget_get_state_flags(widget);
GtkRequestedSize* requested_sizes = g_newa(GtkRequestedSize, visible_count);
guint border_width = gtk_container_get_border_width(GTK_CONTAINER(widget));
GtkShadowType shadow_type = GTK_SHADOW_OUT;
GtkBorder border;
gint toggle_size;
gtk_style_context_get_padding(context, flags, &border);
gtk_widget_style_get(widget, "shadow-type", &shadow_type, NULL);
remaining_space.x = (border_width + border.left);
remaining_space.y = (border_width + border.top);
remaining_space.width = allocation->width -
2 * border_width - border.left - border.right;
remaining_space.height = allocation->height -
2 * border_width - border.top - border.bottom;
if (shadow_type != GTK_SHADOW_NONE)
{
gtk_style_context_get_border(context, flags, &border);
remaining_space.x += border.left;
remaining_space.y += border.top;
remaining_space.width -= border.left + border.right;
remaining_space.height -= border.top + border.bottom;
}
GtkRequestedSize* request = requested_sizes;
int size = remaining_space.width;
gboolean ltr = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_LTR) == (pack_direction == GTK_PACK_DIRECTION_LTR);
for(item = shell_children; item; item = g_list_next(item))
{
if (!gtk_widget_get_visible(item->data))
continue;
request->data = item->data;
gtk_widget_get_preferred_width_for_height(item->data, remaining_space.height,
&request->minimum_size,
&request->natural_size);
gtk_menu_item_toggle_size_request(GTK_MENU_ITEM(item->data),
&toggle_size);
request->minimum_size += toggle_size;
request->natural_size += toggle_size;
gtk_menu_item_toggle_size_allocate(GTK_MENU_ITEM(item->data), toggle_size);
size -= request->minimum_size;
request++;
}
size = gtk_distribute_natural_allocation(size, visible_count, requested_sizes);
/* Distribution extra space for widgets with expand=True */
if(size > 0 && expand_nums)
{
expand_nums = g_list_sort_with_data(expand_nums, (GCompareDataFunc)sort_minimal_size,
requested_sizes);
GList* first_item = expand_nums;
gint needed_size = -1;
gint max_size = requested_sizes[GPOINTER_TO_INT(first_item->data)].natural_size;
gint total_needed_size = 0;
/* Free space that all widgets need to have the same (max_size) width
* [___max_width___][widget ][widget____ ]
* total_needed_size := [] + [ ] + [ ]
* total_needed_size = [ ]
*/
for(item = g_list_next(expand_nums); item; item = g_list_next(item))
total_needed_size += max_size - requested_sizes[GPOINTER_TO_INT(item->data)].natural_size;
while(first_item)
{
if(size >= total_needed_size)
{
/* total_needed_size is enough for all remaining widgets */
needed_size = max_size + (size - total_needed_size)/expand_count;
break;
}
/* Removing current maximal widget from list */
total_needed_size -= max_size - requested_sizes[GPOINTER_TO_INT(item->data)].natural_size;
first_item = g_list_next(first_item);
if(first_item)
max_size = requested_sizes[GPOINTER_TO_INT(first_item->data)].natural_size;
}
for(item = first_item; item; item = g_list_next(item))
{
request = &requested_sizes[GPOINTER_TO_INT(item->data)];
gint dsize = needed_size - request->natural_size;
if(size < dsize)
dsize = size;
size -= dsize;
request->natural_size += dsize;
}
}
gint i;
for(i = 0; i < visible_count; i++)
{
GtkAllocation child_allocation = remaining_space;
request = &requested_sizes[i];
child_allocation.width = request->natural_size;
remaining_space.width -= request->natural_size;
if (ltr)
remaining_space.x += request->natural_size;
else
child_allocation.x += remaining_space.width;
gtk_widget_size_allocate(request->data, &child_allocation);
}
g_list_free(expand_nums);
}
g_list_free(shell_children);
}
