* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
/**
* SECTION:gtkbox
- * @Short_description: Base class for box containers
+ * @Short_description: A container box
* @Title: GtkBox
- * @See_also:i #GtkHBox, #GtkVBox, #GtkFrame, #GtkTable, #GtkLayout
+ * @See_also: #GtkFrame, #GtkGrid, #GtkLayout
*
- * GtkBox is an widget which encapsulates functionality for a
- * particular kind of container, one that organizes a variable number of
- * widgets into a rectangular area. GtkBox has a number of derived
- * classes, e.g. #GtkHBox and #GtkVBox.
+ * The GtkBox widget organizes child widgets into a rectangular area.
*
* The rectangular area of a GtkBox is organized into either a single row
- * or a single column of child widgets depending upon whether the box is
- * of type #GtkHBox or #GtkVBox, respectively. Thus, all children of a
- * GtkBox are allocated one dimension in common, which is the height of a
- * row, or the width of a column.
+ * or a single column of child widgets depending upon the orientation.
+ * Thus, all children of a GtkBox are allocated one dimension in common,
+ * which is the height of a row, or the width of a column.
*
- * GtkBox uses a notion of <emphasis>packing</emphasis>. Packing
- * refers to adding widgets with reference to a particular position in a
- * #GtkContainer. For a GtkBox, there are two reference positions: the
+ * GtkBox uses a notion of <emphasis>packing</emphasis>. Packing refers
+ * to adding widgets with reference to a particular position in a
+ * #GtkContainer. For a GtkBox, there are two reference positions: the
* <emphasis>start</emphasis> and the <emphasis>end</emphasis> of the box.
- * For a #GtkVBox, the start is defined as the top of the box and the end is
- * defined as the bottom. For a #GtkHBox the start is defined as the
- * left side and the end is defined as the right side.
+ * For a vertical #GtkBox, the start is defined as the top of the box and
+ * the end is defined as the bottom. For a horizontal #GtkBox the start
+ * is defined as the left side and the end is defined as the right side.
*
* Use repeated calls to gtk_box_pack_start() to pack widgets into a
- * GtkBox from start to end. Use gtk_box_pack_end() to add widgets from
- * end to start. You may intersperse these calls and add widgets from
+ * GtkBox from start to end. Use gtk_box_pack_end() to add widgets from
+ * end to start. You may intersperse these calls and add widgets from
* both ends of the same GtkBox.
*
- * Because GtkBox is a #GtkContainer, you may also use
- * gtk_container_add() to insert widgets into the box, and they will be
- * packed with the default values for #GtkBox:expand and #GtkBox:fill.
- * Use gtk_container_remove() to remove widgets from the GtkBox.
+ * Because GtkBox is a #GtkContainer, you may also use gtk_container_add()
+ * to insert widgets into the box, and they will be packed with the default
+ * values for #GtkBox:expand and #GtkBox:fill. Use gtk_container_remove()
+ * to remove widgets from the GtkBox.
*
* Use gtk_box_set_homogeneous() to specify whether or not all children
* of the GtkBox are forced to get the same amount of space.
*
* Use gtk_box_set_spacing() to determine how much space will be
- * minimally placed between all children in the GtkBox.
+ * minimally placed between all children in the GtkBox. Note that
+ * spacing is added <emphasis>between</emphasis> the children, while
+ * padding added by gtk_box_pack_start() or gtk_box_pack_end() is added
+ * <emphasis>on either side</emphasis> of the widget it belongs to.
*
* Use gtk_box_reorder_child() to move a GtkBox child to a different
* place in the box.
* Use gtk_box_set_child_packing() to reset the #GtkBox:expand,
* #GtkBox:fill and #GtkBox:padding child properties.
* Use gtk_box_query_child_packing() to query these fields.
+ *
+ * <note><para>
+ * Note that a single-row or single-column #GtkGrid provides exactly
+ * the same functionality as #GtkBox.
+ * </para></note>
*/
#include "config.h"
#include "gtkbox.h"
+#include "gtkboxprivate.h"
+#include "gtkintl.h"
#include "gtkorientable.h"
-#include "gtksizerequest.h"
+#include "gtkorientableprivate.h"
#include "gtkprivate.h"
-#include "gtkintl.h"
+#include "gtktypebuiltins.h"
+#include "gtksizerequest.h"
+#include "gtkwidgetpath.h"
+#include "gtkwidgetprivate.h"
+#include "a11y/gtkcontaineraccessible.h"
enum {
CHILD_PROP_POSITION
};
-
-struct _GtkBoxPriv
+struct _GtkBoxPrivate
{
- GtkOrientation orientation;
-
GList *children;
+ GtkOrientation orientation;
gint16 spacing;
guint default_expand : 1;
guint spacing_set : 1;
};
-
-typedef struct _GtkBoxDesiredSizes GtkBoxDesiredSizes;
-typedef struct _GtkBoxSpreading GtkBoxSpreading;
typedef struct _GtkBoxChild GtkBoxChild;
/*
guint pack : 1;
};
-struct _GtkBoxDesiredSizes
-{
- gint minimum_size;
- gint natural_size;
-};
-
-struct _GtkBoxSpreading
-{
- GtkBoxChild *child;
- gint index;
-};
-
static void gtk_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
+static void gtk_box_compute_expand (GtkWidget *widget,
+ gboolean *hexpand,
+ gboolean *vexpand);
+static void gtk_box_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_direction);
+
static void gtk_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
guint prop_id,
GValue *value,
GParamSpec *pspec);
-
static void gtk_box_add (GtkContainer *container,
GtkWidget *widget);
static void gtk_box_remove (GtkContainer *container,
GValue *value,
GParamSpec *pspec);
static GType gtk_box_child_type (GtkContainer *container);
+static GtkWidgetPath * gtk_box_get_path_for_child
+ (GtkContainer *container,
+ GtkWidget *child);
+
+
+static void gtk_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_box_get_preferred_width_for_height (GtkWidget *widget,
+ gint height,
+ gint *minimum_width,
+ gint *natural_width);
+static void gtk_box_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum_height,
+ gint *natural_height);
-static void gtk_box_size_request_init (GtkSizeRequestIface *iface);
-static GtkSizeRequestMode gtk_box_get_request_mode (GtkSizeRequest *widget);
-static void gtk_box_get_width (GtkSizeRequest *widget,
- gint *minimum_size,
- gint *natural_size);
-static void gtk_box_get_height (GtkSizeRequest *widget,
- gint *minimum_size,
- gint *natural_size);
-static void gtk_box_get_width_for_height (GtkSizeRequest *widget,
- gint height,
- gint *minimum_width,
- gint *natural_width);
-static void gtk_box_get_height_for_width (GtkSizeRequest *widget,
- gint width,
- gint *minimum_height,
- gint *natural_height);
-
-static GtkSizeRequestIface *parent_size_request_iface;
-
G_DEFINE_TYPE_WITH_CODE (GtkBox, gtk_box, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
- NULL)
- G_IMPLEMENT_INTERFACE (GTK_TYPE_SIZE_REQUEST,
- gtk_box_size_request_init));
+ NULL))
static void
gtk_box_class_init (GtkBoxClass *class)
object_class->set_property = gtk_box_set_property;
object_class->get_property = gtk_box_get_property;
- widget_class->size_allocate = gtk_box_size_allocate;
+ widget_class->size_allocate = gtk_box_size_allocate;
+ widget_class->get_preferred_width = gtk_box_get_preferred_width;
+ widget_class->get_preferred_height = gtk_box_get_preferred_height;
+ widget_class->get_preferred_height_for_width = gtk_box_get_preferred_height_for_width;
+ widget_class->get_preferred_width_for_height = gtk_box_get_preferred_width_for_height;
+ widget_class->compute_expand = gtk_box_compute_expand;
+ widget_class->direction_changed = gtk_box_direction_changed;
container_class->add = gtk_box_add;
container_class->remove = gtk_box_remove;
container_class->child_type = gtk_box_child_type;
container_class->set_child_property = gtk_box_set_child_property;
container_class->get_child_property = gtk_box_get_child_property;
+ container_class->get_path_for_child = gtk_box_get_path_for_child;
+ gtk_container_class_handle_border_width (container_class);
g_object_class_override_property (object_class,
PROP_ORIENTATION,
* Note that the default value for this property is %FALSE for GtkBox,
* but #GtkHBox, #GtkVBox and other subclasses use the old default
* of %TRUE.
+ *
+ * Note that the #GtkWidget:halign, #GtkWidget:valign, #GtkWidget:hexpand
+ * and #GtkWidget:vexpand properties are the preferred way to influence
+ * child size allocation in containers.
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_EXPAND,
*
* Whether the child should receive extra space when the parent grows.
*
- * Note that the default value for this property is %FALSE for GtkBox,
- * but #GtkHBox, #GtkVBox and other subclasses use the old default
- * of %TRUE.
+ * Note that the #GtkWidget:halign, #GtkWidget:valign, #GtkWidget:hexpand
+ * and #GtkWidget:vexpand properties are the preferred way to influence
+ * child size allocation in containers.
*/
gtk_container_class_install_child_property (container_class,
CHILD_PROP_FILL,
g_param_spec_boolean ("fill",
P_("Fill"),
P_("Whether extra space given to the child should be allocated to the child or used as padding"),
- FALSE,
+ TRUE,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
gtk_container_class_install_child_property (container_class,
CHILD_PROP_PACK_TYPE,
g_param_spec_enum ("pack-type",
- P_("Pack type"),
+ P_("Pack type"),
P_("A GtkPackType indicating whether the child is packed with reference to the start or end of the parent"),
GTK_TYPE_PACK_TYPE, GTK_PACK_START,
GTK_PARAM_READWRITE));
gtk_container_class_install_child_property (container_class,
CHILD_PROP_POSITION,
- g_param_spec_int ("position",
- P_("Position"),
+ g_param_spec_int ("position",
+ P_("Position"),
P_("The index of the child in the parent"),
-1, G_MAXINT, 0,
GTK_PARAM_READWRITE));
- g_type_class_add_private (object_class, sizeof (GtkBoxPriv));
+ g_type_class_add_private (object_class, sizeof (GtkBoxPrivate));
+
+ gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_FILLER);
}
static void
gtk_box_init (GtkBox *box)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
box->priv = G_TYPE_INSTANCE_GET_PRIVATE (box,
GTK_TYPE_BOX,
- GtkBoxPriv);
+ GtkBoxPrivate);
private = box->priv;
gtk_widget_set_has_window (GTK_WIDGET (box), FALSE);
GParamSpec *pspec)
{
GtkBox *box = GTK_BOX (object);
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
switch (prop_id)
{
case PROP_ORIENTATION:
private->orientation = g_value_get_enum (value);
+ _gtk_orientable_set_style_classes (GTK_ORIENTABLE (box));
gtk_widget_queue_resize (GTK_WIDGET (box));
break;
case PROP_SPACING:
GParamSpec *pspec)
{
GtkBox *box = GTK_BOX (object);
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
switch (prop_id)
{
gint *visible_children,
gint *expand_children)
{
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
GList *children;
GtkBoxChild *child;
if (gtk_widget_get_visible (child->widget))
{
*visible_children += 1;
- if (child->expand)
+ if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
*expand_children += 1;
}
}
}
-static gint
-gtk_box_compare_gap (gconstpointer p1,
- gconstpointer p2,
- gpointer data)
-{
- GtkBoxDesiredSizes *sizes = data;
- const GtkBoxSpreading *c1 = p1;
- const GtkBoxSpreading *c2 = p2;
-
- const gint d1 = MAX (sizes[c1->index].natural_size -
- sizes[c1->index].minimum_size,
- 0);
- const gint d2 = MAX (sizes[c2->index].natural_size -
- sizes[c2->index].minimum_size,
- 0);
-
- gint delta = (d2 - d1);
-
- if (0 == delta)
- delta = (c2->index - c1->index);
-
- return delta;
-}
-
static void
gtk_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBox *box = GTK_BOX (widget);
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
GtkBoxChild *child;
GList *children;
gint nvis_children;
gint nexpand_children;
- widget->allocation = *allocation;
+ GtkTextDirection direction;
+ GtkAllocation child_allocation;
+ GtkRequestedSize *sizes;
+
+ GtkPackType packing;
+
+ gint size;
+ gint extra;
+ gint n_extra_widgets = 0; /* Number of widgets that receive 1 extra px */
+ gint x = 0, y = 0, i;
+ gint child_size;
+
+
+ gtk_widget_set_allocation (widget, allocation);
count_expand_children (box, &nvis_children, &nexpand_children);
- if (nvis_children > 0)
+ /* If there is no visible child, simply return. */
+ if (nvis_children <= 0)
+ return;
+
+ direction = gtk_widget_get_direction (widget);
+ sizes = g_newa (GtkRequestedSize, nvis_children);
+
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ size = allocation->width - (nvis_children - 1) * private->spacing;
+ else
+ size = allocation->height - (nvis_children - 1) * private->spacing;
+
+ /* Retrieve desired size for visible children. */
+ for (i = 0, children = private->children; children; children = children->next)
{
- guint border_width = gtk_container_get_border_width (GTK_CONTAINER (box));
- GtkTextDirection direction = gtk_widget_get_direction (widget);
- GtkAllocation child_allocation;
- GtkBoxSpreading *spreading = g_newa (GtkBoxSpreading, nvis_children);
- GtkBoxDesiredSizes *sizes = g_newa (GtkBoxDesiredSizes, nvis_children);
+ child = children->data;
- GtkPackType packing;
+ if (!gtk_widget_get_visible (child->widget))
+ continue;
- gint size;
- gint extra;
- gint x = 0, y = 0, i;
- gint child_size;
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ gtk_widget_get_preferred_width_for_height (child->widget,
+ allocation->height,
+ &sizes[i].minimum_size,
+ &sizes[i].natural_size);
+ else
+ gtk_widget_get_preferred_height_for_width (child->widget,
+ allocation->width,
+ &sizes[i].minimum_size,
+ &sizes[i].natural_size);
+
+
+ /* Assert the api is working properly */
+ if (sizes[i].minimum_size < 0)
+ g_error ("GtkBox child %s minimum %s: %d < 0 for %s %d",
+ gtk_widget_get_name (GTK_WIDGET (child->widget)),
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
+ sizes[i].minimum_size,
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
+
+ if (sizes[i].natural_size < sizes[i].minimum_size)
+ g_error ("GtkBox child %s natural %s: %d < minimum %d for %s %d",
+ gtk_widget_get_name (GTK_WIDGET (child->widget)),
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
+ sizes[i].natural_size,
+ sizes[i].minimum_size,
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
+
+ size -= sizes[i].minimum_size;
+ size -= child->padding * 2;
+
+ sizes[i].data = child;
+
+ i++;
+ }
+ if (private->homogeneous)
+ {
+ /* If were homogenous we still need to run the above loop to get the
+ * minimum sizes for children that are not going to fill
+ */
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- size = allocation->width - border_width * 2 - (nvis_children - 1) * private->spacing;
+ size = allocation->width - (nvis_children - 1) * private->spacing;
else
- size = allocation->height - border_width * 2 - (nvis_children - 1) * private->spacing;
+ size = allocation->height - (nvis_children - 1) * private->spacing;
- /* Retrieve desired size for visible children */
- i = 0;
- children = private->children;
- while (children)
- {
- child = children->data;
- children = children->next;
+ extra = size / nvis_children;
+ n_extra_widgets = size % nvis_children;
+ }
+ else
+ {
+ /* Bring children up to size first */
+ size = gtk_distribute_natural_allocation (MAX (0, size), nvis_children, sizes);
- if (gtk_widget_get_visible (child->widget))
- {
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_size_request_get_width_for_height (GTK_SIZE_REQUEST (child->widget),
- allocation->height,
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
- else
- gtk_size_request_get_height_for_width (GTK_SIZE_REQUEST (child->widget),
- allocation->width,
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
-
-
- /* Assert the api is working properly */
- if (sizes[i].minimum_size < 0)
- g_error ("GtkBox child %s minimum %s: %d < 0 for %s %d",
- gtk_widget_get_name (GTK_WIDGET (child->widget)),
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
- sizes[i].minimum_size,
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
-
- if (sizes[i].natural_size < sizes[i].minimum_size)
- g_error ("GtkBox child %s natural %s: %d < minimum %d for %s %d",
- gtk_widget_get_name (GTK_WIDGET (child->widget)),
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
- sizes[i].natural_size,
- sizes[i].minimum_size,
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "height" : "width",
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? allocation->height : allocation->width);
-
- size -= sizes[i].minimum_size;
- size -= child->padding * 2;
-
- spreading[i].index = i;
- spreading[i].child = child;
-
- i += 1;
- }
+ /* Calculate space which hasn't distributed yet,
+ * and is available for expanding children.
+ */
+ if (nexpand_children > 0)
+ {
+ extra = size / nexpand_children;
+ n_extra_widgets = size % nexpand_children;
}
+ else
+ extra = 0;
+ }
- if (private->homogeneous)
+ /* Allocate child positions. */
+ for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
+ {
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
- /* If were homogenous we still need to run the above loop to get the minimum sizes
- * for children that are not going to fill
- */
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- size = allocation->width - border_width * 2 - (nvis_children - 1) * private->spacing;
+ child_allocation.y = allocation->y;
+ child_allocation.height = MAX (1, allocation->height);
+ if (packing == GTK_PACK_START)
+ x = allocation->x;
else
- size = allocation->height - border_width * 2 - (nvis_children - 1) * private->spacing;
-
- extra = size / nvis_children;
- }
+ x = allocation->x + allocation->width;
+ }
else
{
+ child_allocation.x = allocation->x;
+ child_allocation.width = MAX (1, allocation->width);
+ if (packing == GTK_PACK_START)
+ y = allocation->y;
+ else
+ y = allocation->y + allocation->height;
+ }
- /* Distribute the container's extra space c_gap. We want to assign
- * this space such that the sum of extra space assigned to children
- * (c^i_gap) is equal to c_cap. The case that there's not enough
- * space for all children to take their natural size needs some
- * attention. The goals we want to achieve are:
- *
- * a) Maximize number of children taking their natural size.
- * b) The allocated size of children should be a continuous
- * function of c_gap. That is, increasing the container size by
- * one pixel should never make drastic changes in the distribution.
- * c) If child i takes its natural size and child j doesn't,
- * child j should have received at least as much gap as child i.
- *
- * The following code distributes the additional space by following
- * this rules.
- */
-
- /* Sort descending by gap and position. */
- g_qsort_with_data (spreading,
- nvis_children, sizeof (GtkBoxSpreading),
- gtk_box_compare_gap, sizes);
-
- /* Distribute available space.
- * This master piece of a loop was conceived by Behdad Esfahbod.
- */
- for (i = nvis_children - 1; size > 0 && i >= 0; --i)
- {
- /* Divide remaining space by number of remaining children.
- * Sort order and reducing remaining space by assigned space
- * ensures that space is distributed equally.
- */
- gint glue = (size + i) / (i + 1);
- gint gap = sizes[spreading[i].index].natural_size
- - sizes[spreading[i].index].minimum_size;
-
- extra = MIN (glue, gap);
- sizes[spreading[i].index].minimum_size += extra;
-
- size -= extra;
- }
+ for (i = 0, children = private->children;
+ children;
+ children = children->next)
+ {
+ child = children->data;
- /* Calculate space which hasn't distributed yet,
- * and is available for expanding children.
- */
- if (nexpand_children > 0)
- extra = size / nexpand_children;
- else
- extra = 0;
- }
+ /* If widget is not visible, skip it. */
+ if (!gtk_widget_get_visible (child->widget))
+ continue;
- /* Allocate child positions. */
+ /* If widget is packed differently skip it, but still increment i,
+ * since widget is visible and will be handled in next loop iteration.
+ */
+ if (child->pack != packing)
+ {
+ i++;
+ continue;
+ }
- for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
- {
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- {
- child_allocation.y = allocation->y + border_width;
- child_allocation.height = MAX (1, allocation->height - border_width * 2);
- if (packing == GTK_PACK_START)
- x = allocation->x + border_width;
- else
- x = allocation->x + allocation->width - border_width;
- }
- else
- {
- child_allocation.x = allocation->x + border_width;
- child_allocation.width = MAX (1, allocation->width - border_width * 2);
- if (packing == GTK_PACK_START)
- y = allocation->y + border_width;
- else
- y = allocation->y + allocation->height - border_width;
- }
+ /* Assign the child's size. */
+ if (private->homogeneous)
+ {
+ child_size = extra;
+
+ if (n_extra_widgets > 0)
+ {
+ child_size++;
+ n_extra_widgets--;
+ }
+ }
+ else
+ {
+ child_size = sizes[i].minimum_size + child->padding * 2;
+
+ if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
+ {
+ child_size += extra;
+
+ if (n_extra_widgets > 0)
+ {
+ child_size++;
+ n_extra_widgets--;
+ }
+ }
+ }
- i = 0;
- children = private->children;
- while (children)
+ /* Assign the child's position. */
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
{
- child = children->data;
- children = children->next;
-
- if (gtk_widget_get_visible (child->widget))
- {
- if (child->pack == packing)
- {
- /* Assign the child's size. */
- if (private->homogeneous)
- {
- if (nvis_children == 1)
- child_size = size;
- else
- child_size = extra;
-
- nvis_children -= 1;
- size -= extra;
- }
- else
- {
- child_size = sizes[i].minimum_size + child->padding * 2;
-
- if (child->expand)
- {
- if (nexpand_children == 1)
- child_size += size;
- else
- child_size += extra;
-
- nexpand_children -= 1;
- size -= extra;
- }
- }
-
- /* Assign the child's position. */
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- {
- if (child->fill)
- {
- child_allocation.width = MAX (1, child_size - child->padding * 2);
- child_allocation.x = x + child->padding;
- }
- else
- {
- child_allocation.width = sizes[i].minimum_size;
- child_allocation.x = x + (child_size - child_allocation.width) / 2;
- }
-
- if (packing == GTK_PACK_START)
- {
- x += child_size + private->spacing;
- }
- else
- {
- x -= child_size + private->spacing;
-
- child_allocation.x -= child_size;
- }
-
- if (direction == GTK_TEXT_DIR_RTL)
- child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
-
- }
- else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
- {
- if (child->fill)
- {
- child_allocation.height = MAX (1, child_size - child->padding * 2);
- child_allocation.y = y + child->padding;
- }
- else
- {
- child_allocation.height = sizes[i].minimum_size;
- child_allocation.y = y + (child_size - child_allocation.height) / 2;
- }
-
- if (packing == GTK_PACK_START)
- {
- y += child_size + private->spacing;
- }
- else
- {
- y -= child_size + private->spacing;
-
- child_allocation.y -= child_size;
- }
- }
- gtk_widget_size_allocate (child->widget, &child_allocation);
- }
-
- i += 1;
- }
+ if (child->fill)
+ {
+ child_allocation.width = MAX (1, child_size - child->padding * 2);
+ child_allocation.x = x + child->padding;
+ }
+ else
+ {
+ child_allocation.width = sizes[i].minimum_size;
+ child_allocation.x = x + (child_size - child_allocation.width) / 2;
+ }
+
+ if (packing == GTK_PACK_START)
+ {
+ x += child_size + private->spacing;
+ }
+ else
+ {
+ x -= child_size + private->spacing;
+
+ child_allocation.x -= child_size;
+ }
+
+ if (direction == GTK_TEXT_DIR_RTL)
+ child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
+
}
+ else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
+ {
+ if (child->fill)
+ {
+ child_allocation.height = MAX (1, child_size - child->padding * 2);
+ child_allocation.y = y + child->padding;
+ }
+ else
+ {
+ child_allocation.height = sizes[i].minimum_size;
+ child_allocation.y = y + (child_size - child_allocation.height) / 2;
+ }
+
+ if (packing == GTK_PACK_START)
+ {
+ y += child_size + private->spacing;
+ }
+ else
+ {
+ y -= child_size + private->spacing;
+
+ child_allocation.y -= child_size;
+ }
+ }
+ gtk_widget_size_allocate (child->widget, &child_allocation);
+
+ i++;
}
}
}
+static void
+gtk_box_compute_expand (GtkWidget *widget,
+ gboolean *hexpand_p,
+ gboolean *vexpand_p)
+{
+ GtkBoxPrivate *private = GTK_BOX (widget)->priv;
+ GList *children;
+ GtkBoxChild *child;
+ gboolean our_expand;
+ gboolean opposite_expand;
+ GtkOrientation opposite_orientation;
+
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ opposite_orientation = GTK_ORIENTATION_VERTICAL;
+ else
+ opposite_orientation = GTK_ORIENTATION_HORIZONTAL;
+
+ our_expand = FALSE;
+ opposite_expand = FALSE;
+
+ for (children = private->children; children; children = children->next)
+ {
+ child = children->data;
+
+ /* we don't recurse into children anymore as soon as we know
+ * expand=TRUE in an orientation
+ */
+
+ if (child->expand || (!our_expand && gtk_widget_compute_expand (child->widget, private->orientation)))
+ our_expand = TRUE;
+
+ if (!opposite_expand && gtk_widget_compute_expand (child->widget, opposite_orientation))
+ opposite_expand = TRUE;
+
+ if (our_expand && opposite_expand)
+ break;
+ }
+
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ *hexpand_p = our_expand;
+ *vexpand_p = opposite_expand;
+ }
+ else
+ {
+ *hexpand_p = opposite_expand;
+ *vexpand_p = our_expand;
+ }
+}
+
static GType
gtk_box_child_type (GtkContainer *container)
{
}
}
+typedef struct _CountingData CountingData;
+struct _CountingData {
+ GtkWidget *widget;
+ gboolean found;
+ guint before;
+ guint after;
+};
+
+static void
+count_widget_position (GtkWidget *widget,
+ gpointer data)
+{
+ CountingData *count = data;
+
+ if (!gtk_widget_get_visible (widget))
+ return;
+
+ if (count->widget == widget)
+ count->found = TRUE;
+ else if (count->found)
+ count->after++;
+ else
+ count->before++;
+}
+
+static gint
+gtk_box_get_visible_position (GtkBox *box,
+ GtkWidget *child)
+{
+ CountingData count = { child, FALSE, 0, 0 };
+
+ /* foreach iterates in visible order */
+ gtk_container_foreach (GTK_CONTAINER (box),
+ count_widget_position,
+ &count);
+
+ /* the child wasn't found, it's likely an internal child of some
+ * subclass, return -1 to indicate that there is no sibling relation
+ * to the regular box children
+ */
+ if (!count.found)
+ return -1;
+
+ if (box->priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
+ gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
+ return count.after;
+ else
+ return count.before;
+}
+
+static GtkWidgetPath *
+gtk_box_get_path_for_child (GtkContainer *container,
+ GtkWidget *child)
+{
+ GtkWidgetPath *path, *sibling_path;
+ GtkBox *box;
+ GtkBoxPrivate *private;
+ GList *list, *children;
+
+ box = GTK_BOX (container);
+ private = box->priv;
+
+ path = _gtk_widget_create_path (GTK_WIDGET (container));
+
+ if (gtk_widget_get_visible (child))
+ {
+ gint position;
+
+ sibling_path = gtk_widget_path_new ();
+
+ /* get_children works in visible order */
+ children = gtk_container_get_children (container);
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL &&
+ gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_RTL)
+ children = g_list_reverse (children);
+
+ for (list = children; list; list = list->next)
+ {
+ if (!gtk_widget_get_visible (list->data))
+ continue;
+
+ gtk_widget_path_append_for_widget (sibling_path, list->data);
+ }
+
+ g_list_free (children);
+
+ position = gtk_box_get_visible_position (box, child);
+
+ if (position >= 0)
+ gtk_widget_path_append_with_siblings (path, sibling_path, position);
+ else
+ gtk_widget_path_append_for_widget (path, child);
+
+ gtk_widget_path_unref (sibling_path);
+ }
+ else
+ gtk_widget_path_append_for_widget (path, child);
+
+ return path;
+}
+
+static void
+gtk_box_invalidate_order_foreach (GtkWidget *widget)
+{
+ _gtk_widget_invalidate_style_context (widget, GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_SIBLING_POSITION);
+}
+
+static void
+gtk_box_invalidate_order (GtkBox *box)
+{
+ gtk_container_foreach (GTK_CONTAINER (box),
+ (GtkCallback) gtk_box_invalidate_order_foreach,
+ NULL);
+}
+
+static void
+gtk_box_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_direction)
+{
+ gtk_box_invalidate_order (GTK_BOX (widget));
+}
+
+static void
+box_child_visibility_notify_cb (GObject *obj,
+ GParamSpec *pspec,
+ gpointer user_data)
+{
+ GtkBox *box = user_data;
+
+ gtk_box_invalidate_order (box);
+}
+
static void
gtk_box_pack (GtkBox *box,
GtkWidget *child,
guint padding,
GtkPackType pack_type)
{
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
GtkBoxChild *child_info;
g_return_if_fail (GTK_IS_BOX (box));
g_return_if_fail (GTK_IS_WIDGET (child));
- g_return_if_fail (child->parent == NULL);
+ g_return_if_fail (gtk_widget_get_parent (child) == NULL);
child_info = g_new (GtkBoxChild, 1);
child_info->widget = child;
gtk_widget_freeze_child_notify (child);
+ gtk_box_invalidate_order (box);
gtk_widget_set_parent (child, GTK_WIDGET (box));
-
+
+ g_signal_connect (child, "notify::visible",
+ G_CALLBACK (box_child_visibility_notify_cb), box);
+
gtk_widget_child_notify (child, "expand");
gtk_widget_child_notify (child, "fill");
gtk_widget_child_notify (child, "padding");
gtk_widget_thaw_child_notify (child);
}
-
static void
-gtk_box_size_request_init (GtkSizeRequestIface *iface)
-{
- parent_size_request_iface = g_type_interface_peek_parent (iface);
-
- iface->get_request_mode = gtk_box_get_request_mode;
- iface->get_width = gtk_box_get_width;
- iface->get_height = gtk_box_get_height;
- iface->get_height_for_width = gtk_box_get_height_for_width;
- iface->get_width_for_height = gtk_box_get_width_for_height;
-}
-
-static GtkSizeRequestMode
-gtk_box_get_request_mode (GtkSizeRequest *widget)
-{
- GtkBoxPriv *private = GTK_BOX (widget)->priv;
-
- return (private->orientation == GTK_ORIENTATION_VERTICAL) ?
- GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH : GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
-}
-
-static void
-gtk_box_get_size (GtkSizeRequest *widget,
- GtkOrientation orientation,
- gint *minimum_size,
- gint *natural_size)
+gtk_box_get_size (GtkWidget *widget,
+ GtkOrientation orientation,
+ gint *minimum_size,
+ gint *natural_size)
{
GtkBox *box;
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
GList *children;
gint nvis_children;
- gint border_width;
gint minimum, natural;
box = GTK_BOX (widget);
private = box->priv;
- border_width = gtk_container_get_border_width (GTK_CONTAINER (box));
minimum = natural = 0;
gint child_minimum, child_natural;
if (orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_size_request_get_width (GTK_SIZE_REQUEST (child->widget),
- &child_minimum, &child_natural);
+ gtk_widget_get_preferred_width (child->widget,
+ &child_minimum, &child_natural);
else
- gtk_size_request_get_height (GTK_SIZE_REQUEST (child->widget),
- &child_minimum, &child_natural);
+ gtk_widget_get_preferred_height (child->widget,
+ &child_minimum, &child_natural);
if (private->orientation == orientation)
{
natural += (nvis_children - 1) * private->spacing;
}
- minimum += border_width * 2;
- natural += border_width * 2;
-
if (minimum_size)
*minimum_size = minimum;
}
static void
-gtk_box_get_width (GtkSizeRequest *widget,
- gint *minimum_size,
- gint *natural_size)
+gtk_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
{
gtk_box_get_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size);
}
static void
-gtk_box_get_height (GtkSizeRequest *widget,
- gint *minimum_size,
- gint *natural_size)
+gtk_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
{
gtk_box_get_size (widget, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size);
}
-static void
+static void
gtk_box_compute_size_for_opposing_orientation (GtkBox *box,
gint avail_size,
gint *minimum_size,
gint *natural_size)
{
- GtkBoxPriv *private = box->priv;
- GtkBoxChild *child;
- GList *children;
- gint nvis_children;
- gint nexpand_children;
- gint computed_minimum = 0, computed_natural = 0;
- guint border_width = gtk_container_get_border_width (GTK_CONTAINER (box));
+ GtkBoxPrivate *private = box->priv;
+ GtkBoxChild *child;
+ GList *children;
+ gint nvis_children;
+ gint nexpand_children;
+ gint computed_minimum = 0, computed_natural = 0;
+ GtkRequestedSize *sizes;
+ GtkPackType packing;
+ gint size, extra, i;
+ gint child_size, child_minimum, child_natural;
+ gint n_extra_widgets = 0;
count_expand_children (box, &nvis_children, &nexpand_children);
- if (nvis_children > 0)
- {
- GtkBoxSpreading *spreading = g_newa (GtkBoxSpreading, nvis_children);
- GtkBoxDesiredSizes *sizes = g_newa (GtkBoxDesiredSizes, nvis_children);
- GtkPackType packing;
- gint size;
- gint extra, i;
- gint child_size, child_minimum, child_natural;
+ if (nvis_children <= 0)
+ return;
- size = avail_size - border_width * 2 - (nvis_children - 1) * private->spacing;
+ sizes = g_newa (GtkRequestedSize, nvis_children);
+ size = avail_size - (nvis_children - 1) * private->spacing;
+
+ /* Retrieve desired size for visible children */
+ for (i = 0, children = private->children; children; children = children->next)
+ {
+ child = children->data;
- /* Retrieve desired size for visible children */
- for (i = 0, children = private->children; children; children = children->next)
+ if (gtk_widget_get_visible (child->widget))
{
- child = children->data;
-
- if (gtk_widget_get_visible (child->widget))
- {
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_size_request_get_width (GTK_SIZE_REQUEST (child->widget),
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
- else
- gtk_size_request_get_height (GTK_SIZE_REQUEST (child->widget),
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
-
- /* Assert the api is working properly */
- if (sizes[i].minimum_size < 0)
- g_error ("GtkBox child %s minimum %s: %d < 0",
- gtk_widget_get_name (GTK_WIDGET (child->widget)),
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
- sizes[i].minimum_size);
-
- if (sizes[i].natural_size < sizes[i].minimum_size)
- g_error ("GtkBox child %s natural %s: %d < minimum %d",
- gtk_widget_get_name (GTK_WIDGET (child->widget)),
- (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
- sizes[i].natural_size,
- sizes[i].minimum_size);
-
- size -= sizes[i].minimum_size;
- size -= child->padding * 2;
-
- spreading[i].index = i;
- spreading[i].child = child;
-
- i += 1;
- }
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ gtk_widget_get_preferred_width (child->widget,
+ &sizes[i].minimum_size,
+ &sizes[i].natural_size);
+ else
+ gtk_widget_get_preferred_height (child->widget,
+ &sizes[i].minimum_size,
+ &sizes[i].natural_size);
+
+ /* Assert the api is working properly */
+ if (sizes[i].minimum_size < 0)
+ g_error ("GtkBox child %s minimum %s: %d < 0",
+ gtk_widget_get_name (GTK_WIDGET (child->widget)),
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
+ sizes[i].minimum_size);
+
+ if (sizes[i].natural_size < sizes[i].minimum_size)
+ g_error ("GtkBox child %s natural %s: %d < minimum %d",
+ gtk_widget_get_name (GTK_WIDGET (child->widget)),
+ (private->orientation == GTK_ORIENTATION_HORIZONTAL) ? "width" : "height",
+ sizes[i].natural_size,
+ sizes[i].minimum_size);
+
+ size -= sizes[i].minimum_size;
+ size -= child->padding * 2;
+
+ sizes[i].data = child;
+
+ i += 1;
}
+ }
- if (private->homogeneous)
+ if (private->homogeneous)
+ {
+ /* If were homogenous we still need to run the above loop to get the
+ * minimum sizes for children that are not going to fill
+ */
+ size = avail_size - (nvis_children - 1) * private->spacing;
+ extra = size / nvis_children;
+ n_extra_widgets = size % nvis_children;
+ }
+ else
+ {
+ /* Bring children up to size first */
+ size = gtk_distribute_natural_allocation (MAX (0, size), nvis_children, sizes);
+
+ /* Calculate space which hasn't distributed yet,
+ * and is available for expanding children.
+ */
+ if (nexpand_children > 0)
{
- /* If were homogenous we still need to run the above loop to get the minimum sizes
- * for children that are not going to fill
- */
- size = avail_size - border_width * 2 - (nvis_children - 1) * private->spacing;
- extra = size / nvis_children;
- }
+ extra = size / nexpand_children;
+ n_extra_widgets = size % nexpand_children;
+ }
else
+ extra = 0;
+ }
+
+ /* Allocate child positions. */
+ for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
+ {
+ for (i = 0, children = private->children;
+ children;
+ children = children->next)
{
+ child = children->data;
- /* Distribute the container's extra space c_gap. We want to assign
- * this space such that the sum of extra space assigned to children
- * (c^i_gap) is equal to c_cap. The case that there's not enough
- * space for all children to take their natural size needs some
- * attention. The goals we want to achieve are:
- *
- * a) Maximize number of children taking their natural size.
- * b) The allocated size of children should be a continuous
- * function of c_gap. That is, increasing the container size by
- * one pixel should never make drastic changes in the distribution.
- * c) If child i takes its natural size and child j doesn't,
- * child j should have received at least as much gap as child i.
- *
- * The following code distributes the additional space by following
- * this rules.
- */
-
- /* Sort descending by gap and position. */
-
- g_qsort_with_data (spreading,
- nvis_children, sizeof (GtkBoxSpreading),
- gtk_box_compare_gap, sizes);
-
- /* Distribute available space.
- * This master piece of a loop was conceived by Behdad Esfahbod.
- */
- for (i = nvis_children - 1; size > 0 && i >= 0; --i)
- {
- /* Divide remaining space by number of remaining children.
- * Sort order and reducing remaining space by assigned space
- * ensures that space is distributed equally.
- */
- gint glue = (size + i) / (i + 1);
- gint gap = sizes[spreading[i].index].natural_size
- - sizes[spreading[i].index].minimum_size;
-
- extra = MIN (glue, gap);
- sizes[spreading[i].index].minimum_size += extra;
-
- size -= extra;
- }
+ /* If widget is not visible, skip it. */
+ if (!gtk_widget_get_visible (child->widget))
+ continue;
- /* Calculate space which hasn't distributed yet,
- * and is available for expanding children.
- */
- if (nexpand_children > 0)
- extra = size / nexpand_children;
- else
- extra = 0;
- }
+ /* If widget is packed differently skip it, but still increment i,
+ * since widget is visible and will be handled in next loop iteration.
+ */
+ if (child->pack != packing)
+ {
+ i++;
+ continue;
+ }
- /* Allocate child positions. */
- for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
- {
- for (i = 0, children = private->children; children; children = children->next)
+ if (child->pack == packing)
{
- child = children->data;
-
- if (gtk_widget_get_visible (child->widget))
- {
- if (child->pack == packing)
- {
- /* Assign the child's size. */
- if (private->homogeneous)
- {
- if (nvis_children == 1)
- child_size = size;
- else
- child_size = extra;
-
- nvis_children -= 1;
- size -= extra;
- }
- else
- {
- child_size = sizes[i].minimum_size + child->padding * 2;
-
- if (child->expand)
- {
- if (nexpand_children == 1)
- child_size += size;
- else
- child_size += extra;
-
- nexpand_children -= 1;
- size -= extra;
- }
- }
-
- if (child->fill)
- {
- child_size = MAX (1, child_size - child->padding * 2);
- }
- else
+ /* Assign the child's size. */
+ if (private->homogeneous)
+ {
+ child_size = extra;
+
+ if (n_extra_widgets > 0)
+ {
+ child_size++;
+ n_extra_widgets--;
+ }
+ }
+ else
+ {
+ child_size = sizes[i].minimum_size + child->padding * 2;
+
+ if (child->expand || gtk_widget_compute_expand (child->widget, private->orientation))
+ {
+ child_size += extra;
+
+ if (n_extra_widgets > 0)
{
- child_size = sizes[i].minimum_size;
+ child_size++;
+ n_extra_widgets--;
}
+ }
+ }
+ if (child->fill)
+ {
+ child_size = MAX (1, child_size - child->padding * 2);
+ }
+ else
+ {
+ child_size = sizes[i].minimum_size;
+ }
- /* Assign the child's position. */
- if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_size_request_get_height_for_width (GTK_SIZE_REQUEST (child->widget),
- child_size, &child_minimum, &child_natural);
- else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
- gtk_size_request_get_width_for_height (GTK_SIZE_REQUEST (child->widget),
- child_size, &child_minimum, &child_natural);
-
- computed_minimum = MAX (computed_minimum, child_minimum);
- computed_natural = MAX (computed_natural, child_natural);
- }
- i += 1;
- }
+ /* Assign the child's position. */
+ if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
+ gtk_widget_get_preferred_height_for_width (child->widget,
+ child_size, &child_minimum, &child_natural);
+ else /* (private->orientation == GTK_ORIENTATION_VERTICAL) */
+ gtk_widget_get_preferred_width_for_height (child->widget,
+ child_size, &child_minimum, &child_natural);
+
+
+ computed_minimum = MAX (computed_minimum, child_minimum);
+ computed_natural = MAX (computed_natural, child_natural);
}
+ i += 1;
}
}
- computed_minimum += border_width * 2;
- computed_natural += border_width * 2;
-
if (minimum_size)
*minimum_size = computed_minimum;
if (natural_size)
*natural_size = computed_natural;
-}
+}
-static void
+static void
gtk_box_compute_size_for_orientation (GtkBox *box,
gint avail_size,
gint *minimum_size,
gint *natural_size)
{
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
GList *children;
gint nvis_children = 0;
gint required_size = 0, required_natural = 0, child_size, child_natural;
gint largest_child = 0, largest_natural = 0;
- guint border_width;
- border_width = gtk_container_get_border_width (GTK_CONTAINER (box));
- avail_size -= border_width * 2;
-
- for (children = private->children; children != NULL;
- children = children->next, nvis_children++)
+ for (children = private->children; children != NULL;
+ children = children->next)
{
GtkBoxChild *child = children->data;
{
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_size_request_get_width_for_height (GTK_SIZE_REQUEST (child->widget),
- avail_size, &child_size, &child_natural);
+ gtk_widget_get_preferred_width_for_height (child->widget,
+ avail_size, &child_size, &child_natural);
else
- gtk_size_request_get_height_for_width (GTK_SIZE_REQUEST (child->widget),
- avail_size, &child_size, &child_natural);
+ gtk_widget_get_preferred_height_for_width (child->widget,
+ avail_size, &child_size, &child_natural);
child_size += child->padding * 2;
required_size += child_size;
required_natural += child_natural;
+
+ nvis_children += 1;
}
}
required_natural += (nvis_children - 1) * private->spacing;
}
- required_size += border_width * 2;
- required_natural += border_width * 2;
-
if (minimum_size)
*minimum_size = required_size;
*natural_size = required_natural;
}
-static void
-gtk_box_get_width_for_height (GtkSizeRequest *widget,
- gint height,
- gint *minimum_width,
- gint *natural_width)
+static void
+gtk_box_get_preferred_width_for_height (GtkWidget *widget,
+ gint height,
+ gint *minimum_width,
+ gint *natural_width)
{
GtkBox *box = GTK_BOX (widget);
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
if (private->orientation == GTK_ORIENTATION_VERTICAL)
- gtk_box_compute_size_for_opposing_orientation (box, height, minimum_width, natural_width);
+ gtk_box_compute_size_for_opposing_orientation (box, height, minimum_width, natural_width);
else
gtk_box_compute_size_for_orientation (box, height, minimum_width, natural_width);
}
-static void
-gtk_box_get_height_for_width (GtkSizeRequest *widget,
- gint width,
- gint *minimum_height,
- gint *natural_height)
+static void
+gtk_box_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum_height,
+ gint *natural_height)
{
GtkBox *box = GTK_BOX (widget);
- GtkBoxPriv *private = box->priv;
+ GtkBoxPrivate *private = box->priv;
if (private->orientation == GTK_ORIENTATION_HORIZONTAL)
gtk_box_compute_size_for_opposing_orientation (box, width, minimum_height, natural_height);
/**
* gtk_box_new:
- * @orientation: the box' orientation.
- * @homogeneous: %TRUE if all children are to be given equal space allocations.
+ * @orientation: the box's orientation.
* @spacing: the number of pixels to place by default between children.
*
* Creates a new #GtkBox.
**/
GtkWidget*
gtk_box_new (GtkOrientation orientation,
- gboolean homogeneous,
gint spacing)
{
return g_object_new (GTK_TYPE_BOX,
"orientation", orientation,
"spacing", spacing,
- "homogeneous", homogeneous ? TRUE : FALSE,
NULL);
}
* gtk_box_pack_start:
* @box: a #GtkBox
* @child: the #GtkWidget to be added to @box
- * @expand: %TRUE if the new child is to be given extra space allocated to
- * @box. The extra space will be divided evenly between all children of
- * @box that use this option
+ * @expand: %TRUE if the new child is to be given extra space allocated
+ * to @box. The extra space will be divided evenly between all children
+ * that use this option
* @fill: %TRUE if space given to @child by the @expand option is
- * actually allocated to @child, rather than just padding it. This
- * parameter has no effect if @expand is set to %FALSE. A child is
- * always allocated the full height of a #GtkHBox and the full width
- * of a #GtkVBox. This option affects the other dimension
+ * actually allocated to @child, rather than just padding it. This
+ * parameter has no effect if @expand is set to %FALSE. A child is
+ * always allocated the full height of a horizontal #GtkBox and the full width
+ * of a vertical #GtkBox. This option affects the other dimension
* @padding: extra space in pixels to put between this child and its
* neighbors, over and above the global amount specified by
- * #GtkBox:spacing property. If @child is a widget at one of the
- * reference ends of @box, then @padding pixels are also put between
+ * #GtkBox:spacing property. If @child is a widget at one of the
+ * reference ends of @box, then @padding pixels are also put between
* @child and the reference edge of @box
*
* Adds @child to @box, packed with reference to the start of @box.
- * The @child is packed after any other child packed with reference
+ * The @child is packed after any other child packed with reference
* to the start of @box.
*/
void
* gtk_box_pack_end:
* @box: a #GtkBox
* @child: the #GtkWidget to be added to @box
- * @expand: %TRUE if the new child is to be given extra space allocated
- * to @box. The extra space will be divided evenly between all children
+ * @expand: %TRUE if the new child is to be given extra space allocated
+ * to @box. The extra space will be divided evenly between all children
* of @box that use this option
* @fill: %TRUE if space given to @child by the @expand option is
* actually allocated to @child, rather than just padding it. This
* parameter has no effect if @expand is set to %FALSE. A child is
- * always allocated the full height of a #GtkHBox and the full width
- * of a #GtkVBox. This option affects the other dimension
+ * always allocated the full height of a horizontal #GtkBox and the full width
+ * of a vertical #GtkBox. This option affects the other dimension
* @padding: extra space in pixels to put between this child and its
* neighbors, over and above the global amount specified by
- * #GtkBox:spacing property. If @child is a widget at one of the
- * reference ends of @box, then @padding pixels are also put between
+ * #GtkBox:spacing property. If @child is a widget at one of the
+ * reference ends of @box, then @padding pixels are also put between
* @child and the reference edge of @box
*
- * Adds @child to @box, packed with reference to the end of @box.
- * The @child is packed after (away from end of) any other child
+ * Adds @child to @box, packed with reference to the end of @box.
+ * The @child is packed after (away from end of) any other child
* packed with reference to the end of @box.
*/
void
* @box: a #GtkBox
* @homogeneous: a boolean value, %TRUE to create equal allotments,
* %FALSE for variable allotments
- *
- * Sets the #GtkBox:homogeneous property of @box, controlling
- * whether or not all children of @box are given equal space
+ *
+ * Sets the #GtkBox:homogeneous property of @box, controlling
+ * whether or not all children of @box are given equal space
* in the box.
*/
void
gtk_box_set_homogeneous (GtkBox *box,
gboolean homogeneous)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
* @box: a #GtkBox
* @spacing: the number of pixels to put between children
*
- * Sets the #GtkBox:spacing property of @box, which is the
+ * Sets the #GtkBox:spacing property of @box, which is the
* number of pixels to place between children of @box.
*/
void
gtk_box_set_spacing (GtkBox *box,
gint spacing)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
/**
* gtk_box_get_spacing:
* @box: a #GtkBox
- *
+ *
* Gets the value set by gtk_box_set_spacing().
- *
+ *
* Return value: spacing between children
**/
gint
_gtk_box_set_spacing_set (GtkBox *box,
gboolean spacing_set)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
gboolean
_gtk_box_get_spacing_set (GtkBox *box)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
g_return_val_if_fail (GTK_IS_BOX (box), FALSE);
* gtk_box_reorder_child:
* @box: a #GtkBox
* @child: the #GtkWidget to move
- * @position: the new position for @child in the list of children
- * of @box, starting from 0. If negative, indicates the end of
+ * @position: the new position for @child in the list of children
+ * of @box, starting from 0. If negative, indicates the end of
* the list
*
- * Moves @child to a new @position in the list of @box children.
+ * Moves @child to a new @position in the list of @box children.
* The list is the <structfield>children</structfield> field of
- * #GtkBox-struct, and contains both widgets packed #GTK_PACK_START
- * as well as widgets packed #GTK_PACK_END, in the order that these
+ * #GtkBox-struct, and contains both widgets packed #GTK_PACK_START
+ * as well as widgets packed #GTK_PACK_END, in the order that these
* widgets were added to @box.
- *
- * A widget's position in the @box children list determines where
- * the widget is packed into @box. A child widget at some position
- * in the list will be packed just after all other widgets of the
+ *
+ * A widget's position in the @box children list determines where
+ * the widget is packed into @box. A child widget at some position
+ * in the list will be packed just after all other widgets of the
* same packing type that appear earlier in the list.
- */
+ */
void
gtk_box_reorder_child (GtkBox *box,
GtkWidget *child,
gint position)
{
- GtkBoxPriv *priv;
+ GtkBoxPrivate *priv;
GList *old_link;
GList *new_link;
GtkBoxChild *child_info = NULL;
gtk_widget_child_notify (child, "position");
if (gtk_widget_get_visible (child)
&& gtk_widget_get_visible (GTK_WIDGET (box)))
- gtk_widget_queue_resize (child);
+ {
+ gtk_box_invalidate_order (box);
+ gtk_widget_queue_resize (child);
+ }
}
/**
* gtk_box_query_child_packing:
* @box: a #GtkBox
* @child: the #GtkWidget of the child to query
- * @expand: pointer to return location for #GtkBox:expand child property
- * @fill: pointer to return location for #GtkBox:fill child property
- * @padding: pointer to return location for #GtkBox:padding child property
- * @pack_type: pointer to return location for #GtkBox:pack-type child property
- *
+ * @expand: (out): pointer to return location for #GtkBox:expand child
+ * property
+ * @fill: (out): pointer to return location for #GtkBox:fill child
+ * property
+ * @padding: (out): pointer to return location for #GtkBox:padding
+ * child property
+ * @pack_type: (out): pointer to return location for #GtkBox:pack-type
+ * child property
+ *
* Obtains information about how @child is packed into @box.
*/
void
guint *padding,
GtkPackType *pack_type)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
GList *list;
GtkBoxChild *child_info = NULL;
* gtk_box_set_child_packing:
* @box: a #GtkBox
* @child: the #GtkWidget of the child to set
- * @expand: the new value of the #GtkBox:expand child property
+ * @expand: the new value of the #GtkBox:expand child property
* @fill: the new value of the #GtkBox:fill child property
* @padding: the new value of the #GtkBox:padding child property
* @pack_type: the new value of the #GtkBox:pack-type child property
guint padding,
GtkPackType pack_type)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
GList *list;
GtkBoxChild *child_info = NULL;
gtk_widget_freeze_child_notify (child);
if (list)
{
- child_info->expand = expand != FALSE;
- gtk_widget_child_notify (child, "expand");
+ gboolean expanded;
+
+ expanded = expand != FALSE;
+
+ /* avoid setting expand if unchanged, since queue_compute_expand
+ * can be expensive-ish
+ */
+ if (child_info->expand != expanded)
+ {
+ child_info->expand = expand != FALSE;
+ gtk_widget_queue_compute_expand (GTK_WIDGET (box));
+ gtk_widget_child_notify (child, "expand");
+ }
+
child_info->fill = fill != FALSE;
gtk_widget_child_notify (child, "fill");
child_info->padding = padding;
gtk_widget_child_notify (child, "padding");
- if (pack_type == GTK_PACK_END)
- child_info->pack = GTK_PACK_END;
- else
- child_info->pack = GTK_PACK_START;
- gtk_widget_child_notify (child, "pack-type");
+ if (pack_type != GTK_PACK_END)
+ pack_type = GTK_PACK_START;
+ if (child_info->pack != pack_type)
+ {
+ child_info->pack = pack_type;
+ gtk_widget_child_notify (child, "pack-type");
+ gtk_box_invalidate_order (box);
+ }
if (gtk_widget_get_visible (child)
&& gtk_widget_get_visible (GTK_WIDGET (box)))
void
_gtk_box_set_old_defaults (GtkBox *box)
{
- GtkBoxPriv *private;
+ GtkBoxPrivate *private;
g_return_if_fail (GTK_IS_BOX (box));
gtk_box_add (GtkContainer *container,
GtkWidget *widget)
{
- GtkBoxPriv *priv = GTK_BOX (container)->priv;
+ GtkBoxPrivate *priv = GTK_BOX (container)->priv;
gtk_box_pack_start (GTK_BOX (container), widget,
priv->default_expand,
- priv->default_expand,
+ TRUE,
0);
}
GtkWidget *widget)
{
GtkBox *box = GTK_BOX (container);
- GtkBoxPriv *priv = box->priv;
+ GtkBoxPrivate *priv = box->priv;
GtkBoxChild *child;
GList *children;
{
gboolean was_visible;
+ g_signal_handlers_disconnect_by_func (widget,
+ box_child_visibility_notify_cb,
+ box);
+
was_visible = gtk_widget_get_visible (widget);
gtk_widget_unparent (widget);
* since that's what is needed by toplevels.
*/
if (was_visible)
- gtk_widget_queue_resize (GTK_WIDGET (container));
+ {
+ gtk_box_invalidate_order (box);
+ gtk_widget_queue_resize (GTK_WIDGET (container));
+ }
break;
}
gpointer callback_data)
{
GtkBox *box = GTK_BOX (container);
- GtkBoxPriv *priv = box->priv;
+ GtkBoxPrivate *priv = box->priv;
GtkBoxChild *child;
GList *children;
GList *
_gtk_box_get_children (GtkBox *box)
{
- GtkBoxPriv *priv;
+ GtkBoxPrivate *priv;
GtkBoxChild *child;
GList *children;
GList *retval = NULL;
projects / ~andy / gtk / blobdiff