+++ /dev/null
-/*
- * Copyright (c) 2013 - 2014 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- * License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-#include "config.h"
-
-#include "gtkcenterbox.h"
-#include "gtkintl.h"
-#include "gtkprivate.h"
-#include "gtktypebuiltins.h"
-#include "gtkwidgetprivate.h"
-#include "gtkcontainerprivate.h"
-#include "gtkwindowprivate.h"
-#include "a11y/gtkcontaineraccessible.h"
-
-#include <string.h>
-
-/**
- * SECTION:gtkcenterbox
- * @Short_description: A box with a centered child
- * @Title: GtkCenterBox
- * @See_also: #GtkBox
- *
- * GtkCenterBox is similar to a horizontal #GtkBox, it allows placing
- * children at the start or the end. In addition, it contains an
- * internal centered box which is centered with respect to the full
- * width of the box, even if the children at either side take up
- * different amounts of space.
- *
- */
-
-#define DEFAULT_SPACING 6
-
-struct _GtkCenterBoxPrivate
-{
- GtkWidget *center_widget;
- gint spacing;
-
- GList *children;
-};
-
-typedef struct _Child Child;
-struct _Child
-{
- GtkWidget *widget;
- GtkPackType pack_type;
-};
-
-enum {
- PROP_0,
- PROP_CENTER_WIDGET,
- PROP_SPACING,
-};
-
-enum {
- CHILD_PROP_0,
- CHILD_PROP_PACK_TYPE,
- CHILD_PROP_POSITION
-};
-
-static void gtk_center_box_buildable_init (GtkBuildableIface *iface);
-
-G_DEFINE_TYPE_WITH_CODE (GtkCenterBox, gtk_center_box, GTK_TYPE_CONTAINER,
- G_ADD_PRIVATE (GtkCenterBox)
- G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
- gtk_center_box_buildable_init));
-
-static void
-get_css_padding_and_border (GtkWidget *widget,
- GtkBorder *border)
-{
- GtkStyleContext *context;
- GtkStateFlags state;
- GtkBorder tmp;
-
- context = gtk_widget_get_style_context (widget);
- state = gtk_widget_get_state_flags (widget);
-
- gtk_style_context_get_padding (context, state, border);
- gtk_style_context_get_border (context, state, &tmp);
- border->top += tmp.top;
- border->right += tmp.right;
- border->bottom += tmp.bottom;
- border->left += tmp.left;
-}
-
-static void
-gtk_center_box_init (GtkCenterBox *box)
-{
- GtkStyleContext *context;
- GtkCenterBoxPrivate *priv;
-
- priv = gtk_center_box_get_instance_private (box);
-
- gtk_widget_set_has_window (GTK_WIDGET (box), FALSE);
- gtk_widget_set_redraw_on_allocate (GTK_WIDGET (box), FALSE);
-
- priv->center_widget = NULL;
- priv->children = NULL;
- priv->spacing = DEFAULT_SPACING;
-
- context = gtk_widget_get_style_context (GTK_WIDGET (box));
- gtk_style_context_add_class (context, "center-box");
- gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
-}
-
-static gint
-count_visible_children (GtkCenterBox *box)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *l;
- Child *child;
- gint n;
-
- n = 0;
- for (l = priv->children; l; l = l->next)
- {
- child = l->data;
- if (gtk_widget_get_visible (child->widget))
- n++;
- }
-
- return n;
-}
-
-static gboolean
-add_child_size (GtkWidget *child,
- GtkOrientation orientation,
- gint *minimum,
- gint *natural)
-{
- gint child_minimum, child_natural;
-
- if (!gtk_widget_get_visible (child))
- return FALSE;
-
- if (orientation == GTK_ORIENTATION_HORIZONTAL)
- gtk_widget_get_preferred_width (child, &child_minimum, &child_natural);
- else
- gtk_widget_get_preferred_height (child, &child_minimum, &child_natural);
-
- if (GTK_ORIENTATION_HORIZONTAL == orientation)
- {
- *minimum += child_minimum;
- *natural += child_natural;
- }
- else
- {
- *minimum = MAX (*minimum, child_minimum);
- *natural = MAX (*natural, child_natural);
- }
-
- return TRUE;
-}
-
-static void
-gtk_center_box_get_size (GtkWidget *widget,
- GtkOrientation orientation,
- gint *minimum_size,
- gint *natural_size)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (widget);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *l;
- gint nvis_children;
- gint minimum, natural;
- GtkBorder css_borders;
-
- minimum = natural = 0;
- nvis_children = 0;
-
- for (l = priv->children; l; l = l->next)
- {
- Child *child = l->data;
-
- if (add_child_size (child->widget, orientation, &minimum, &natural))
- nvis_children += 1;
- }
-
- if (priv->center_widget != NULL &&
- gtk_widget_get_visible (priv->center_widget))
- {
- if (add_child_size (priv->center_widget, orientation, &minimum, &natural))
- nvis_children += 1;
- }
-
- if (nvis_children > 0 && orientation == GTK_ORIENTATION_HORIZONTAL)
- {
- minimum += nvis_children * priv->spacing;
- natural += nvis_children * priv->spacing;
- }
-
- get_css_padding_and_border (widget, &css_borders);
-
- if (GTK_ORIENTATION_HORIZONTAL == orientation)
- {
- minimum += css_borders.left + css_borders.right;
- natural += css_borders.left + css_borders.right;
- }
- else
- {
- minimum += css_borders.top + css_borders.bottom;
- natural += css_borders.top + css_borders.bottom;
- }
-
- if (minimum_size)
- *minimum_size = minimum;
-
- if (natural_size)
- *natural_size = natural;
-}
-
-static void
-gtk_center_box_compute_size_for_orientation (GtkWidget *widget,
- gint avail_size,
- gint *minimum_size,
- gint *natural_size)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (widget);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *children;
- gint required_size = 0;
- gint required_natural = 0;
- gint child_size;
- gint child_natural;
- gint nvis_children;
- GtkBorder css_borders;
-
- nvis_children = 0;
-
- for (children = priv->children; children != NULL; children = children->next)
- {
- Child *child = children->data;
-
- if (gtk_widget_get_visible (child->widget))
- {
- gtk_widget_get_preferred_width_for_height (child->widget,
- avail_size, &child_size, &child_natural);
-
- required_size += child_size;
- required_natural += child_natural;
-
- nvis_children += 1;
- }
- }
-
- if (priv->center_widget != NULL &&
- gtk_widget_get_visible (priv->center_widget))
- {
- gtk_widget_get_preferred_width (priv->center_widget,
- &child_size, &child_natural);
- required_size += child_size;
- required_natural += child_natural;
- }
-
- if (nvis_children > 0)
- {
- required_size += nvis_children * priv->spacing;
- required_natural += nvis_children * priv->spacing;
- }
-
- get_css_padding_and_border (widget, &css_borders);
-
- required_size += css_borders.left + css_borders.right;
- required_natural += css_borders.left + css_borders.right;
-
- if (minimum_size)
- *minimum_size = required_size;
-
- if (natural_size)
- *natural_size = required_natural;
-}
-
-static void
-gtk_center_box_compute_size_for_opposing_orientation (GtkWidget *widget,
- gint avail_size,
- gint *minimum_size,
- gint *natural_size)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (widget);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- Child *child;
- GList *children;
- gint nvis_children;
- gint computed_minimum = 0;
- gint computed_natural = 0;
- GtkRequestedSize *sizes;
- GtkPackType packing;
- gint size = 0;
- gint i;
- gint child_size;
- gint child_minimum;
- gint child_natural;
- GtkBorder css_borders;
-
- nvis_children = count_visible_children (box);
-
- if (nvis_children <= 0)
- return;
-
- sizes = g_newa (GtkRequestedSize, nvis_children);
-
- /* Retrieve desired size for visible children */
- for (i = 0, children = priv->children; children; children = children->next)
- {
- child = children->data;
-
- if (gtk_widget_get_visible (child->widget))
- {
- gtk_widget_get_preferred_width (child->widget,
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
-
- size -= sizes[i].minimum_size;
- sizes[i].data = child;
- i += 1;
- }
- }
-
- /* Bring children up to size first */
- size = gtk_distribute_natural_allocation (MAX (0, avail_size), nvis_children, sizes);
-
- /* Allocate child positions. */
- for (packing = GTK_PACK_START; packing <= GTK_PACK_END; ++packing)
- {
- for (i = 0, children = priv->children; children; children = children->next)
- {
- child = children->data;
-
- /* If widget is not visible, skip it. */
- if (!gtk_widget_get_visible (child->widget))
- continue;
-
- /* 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_type != packing)
- {
- i++;
- continue;
- }
-
- child_size = sizes[i].minimum_size;
-
- gtk_widget_get_preferred_height_for_width (child->widget,
- child_size, &child_minimum, &child_natural);
-
- computed_minimum = MAX (computed_minimum, child_minimum);
- computed_natural = MAX (computed_natural, child_natural);
- }
- i += 1;
- }
-
- if (priv->center_widget != NULL &&
- gtk_widget_get_visible (priv->center_widget))
- {
- gtk_widget_get_preferred_height (priv->center_widget,
- &child_minimum, &child_natural);
- computed_minimum = MAX (computed_minimum, child_minimum);
- computed_natural = MAX (computed_natural, child_natural);
- }
-
- get_css_padding_and_border (widget, &css_borders);
-
- computed_minimum += css_borders.top + css_borders.bottom;
- computed_natural += css_borders.top + css_borders.bottom;
-
- if (minimum_size)
- *minimum_size = computed_minimum;
-
- if (natural_size)
- *natural_size = computed_natural;
-}
-
-static void
-gtk_center_box_get_preferred_width (GtkWidget *widget,
- gint *minimum_size,
- gint *natural_size)
-{
- gtk_center_box_get_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size);
-}
-
-static void
-gtk_center_box_get_preferred_height (GtkWidget *widget,
- gint *minimum_size,
- gint *natural_size)
-{
- gtk_center_box_get_size (widget, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size);
-}
-
-static void
-gtk_center_box_get_preferred_width_for_height (GtkWidget *widget,
- gint height,
- gint *minimum_width,
- gint *natural_width)
-{
- gtk_center_box_compute_size_for_orientation (widget, height, minimum_width, natural_width);
-}
-
-static void
-gtk_center_box_get_preferred_height_for_width (GtkWidget *widget,
- gint width,
- gint *minimum_height,
- gint *natural_height)
-{
- gtk_center_box_compute_size_for_opposing_orientation (widget, width, minimum_height, natural_height);
-}
-
-static void
-gtk_center_box_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (widget);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GtkRequestedSize *sizes;
- gint width, height;
- gint nvis_children;
- gint start_width, end_width;
- gint side[2];
- GList *l;
- gint i;
- Child *child;
- GtkPackType packing;
- GtkAllocation child_allocation;
- gint x;
- gint child_size;
- GtkTextDirection direction;
- GtkBorder css_borders;
- gint center_minimum_size;
- gint center_natural_size;
-
- gtk_widget_set_allocation (widget, allocation);
-
- direction = gtk_widget_get_direction (widget);
- nvis_children = count_visible_children (box);
- sizes = g_newa (GtkRequestedSize, nvis_children);
-
- get_css_padding_and_border (widget, &css_borders);
- width = allocation->width - nvis_children * priv->spacing - css_borders.left - css_borders.right;
- height = allocation->height - css_borders.top - css_borders.bottom;
-
- i = 0;
- for (l = priv->children; l; l = l->next)
- {
- child = l->data;
- if (!gtk_widget_get_visible (child->widget))
- continue;
-
- gtk_widget_get_preferred_width_for_height (child->widget,
- height,
- &sizes[i].minimum_size,
- &sizes[i].natural_size);
- width -= sizes[i].minimum_size;
- i++;
- }
-
- if (priv->center_widget != NULL &&
- gtk_widget_get_visible (priv->center_widget))
- {
- gtk_widget_get_preferred_width_for_height (priv->center_widget,
- height,
- ¢er_minimum_size,
- ¢er_natural_size);
- width -= center_natural_size;
- }
- else
- {
- center_minimum_size = 0;
- center_natural_size = 0;
- }
-
- start_width = 0;
- end_width = 0;
-
- width = gtk_distribute_natural_allocation (MAX (0, width), nvis_children, sizes);
-
- side[0] = side[1] = 0;
- for (packing = GTK_PACK_START; packing <= GTK_PACK_END; packing++)
- {
- child_allocation.y = allocation->y + css_borders.top;
- child_allocation.height = height;
- if (packing == GTK_PACK_START)
- x = allocation->x + css_borders.left + start_width;
- else
- x = allocation->x + allocation->width - end_width - css_borders.right;
-
- i = 0;
-
- for (l = priv->children; l != NULL; l = l->next)
- {
- child = l->data;
- if (!gtk_widget_get_visible (child->widget))
- continue;
-
- if (child->pack_type != packing)
- goto next;
-
- child_size = sizes[i].minimum_size;
-
- child_allocation.width = child_size;
-
- if (packing == GTK_PACK_START)
- {
- child_allocation.x = x;
- x += child_size;
- x += priv->spacing;
- }
- else
- {
- x -= child_size;
- child_allocation.x = x;
- x -= priv->spacing;
- }
-
- side[packing] += child_size + priv->spacing;
-
- if (direction == GTK_TEXT_DIR_RTL)
- child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
-
- gtk_widget_size_allocate (child->widget, &child_allocation);
-
- next:
- i++;
- }
- }
-
- side[GTK_PACK_START] += start_width;
- side[GTK_PACK_END] += end_width;
-
- child_allocation.y = allocation->y + css_borders.top;
- child_allocation.height = height;
-
- width = MAX (side[0], side[1]);
-
- if (allocation->width - 2 * width >= center_natural_size)
- child_size = MIN (center_natural_size, allocation->width - 2 * width);
- else if (allocation->width - side[0] - side[1] >= center_natural_size)
- child_size = MIN (center_natural_size, allocation->width - side[0] - side[1]);
- else
- child_size = allocation->width - side[0] - side[1];
-
- child_allocation.x = allocation->x + (allocation->width - child_size) / 2;
- child_allocation.width = child_size;
-
- if (allocation->x + side[0] > child_allocation.x)
- child_allocation.x = allocation->x + side[0];
- else if (allocation->x + allocation->width - side[1] < child_allocation.x + child_allocation.width)
- child_allocation.x = allocation->x + allocation->width - side[1] - child_allocation.width;
-
- if (direction == GTK_TEXT_DIR_RTL)
- child_allocation.x = allocation->x + allocation->width - (child_allocation.x - allocation->x) - child_allocation.width;
-
- if (priv->center_widget &&
- gtk_widget_get_visible (priv->center_widget))
- gtk_widget_size_allocate (priv->center_widget, &child_allocation);
-}
-
-/**
- * gtk_center_box_set_center_widget:
- * @box: a #GtkCenterBox
- * @center_widget: (allow-none): a widget to use for the center
- *
- * Sets the center widget for the #GtkCenterBox.
- *
- * Since: 3.12
- */
-void
-gtk_center_box_set_center_widget (GtkCenterBox *box,
- GtkWidget *center_widget)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
-
- g_return_if_fail (GTK_IS_CENTER_BOX (box));
- if (center_widget)
- g_return_if_fail (GTK_IS_WIDGET (center_widget));
-
- /* No need to do anything if the center widget stays the same */
- if (priv->center_widget == center_widget)
- return;
-
- if (priv->center_widget)
- {
- GtkWidget *center = priv->center_widget;
-
- priv->center_widget = NULL;
- gtk_widget_unparent (center);
- }
-
- if (center_widget != NULL)
- {
- priv->center_widget = center_widget;
-
- gtk_widget_set_parent (priv->center_widget, GTK_WIDGET (box));
- gtk_widget_set_valign (priv->center_widget, GTK_ALIGN_CENTER);
- }
-
- gtk_widget_queue_resize (GTK_WIDGET (box));
-
- g_object_notify (G_OBJECT (box), "center-widget");
-}
-
-/**
- * gtk_center_box_get_center_widget:
- * @box: a #GtkCenterBox
- *
- * Retrieves the center box widget of the box.
- *
- * Return value: (transfer none): the center #GtkBox.
- *
- * Since: 3.12
- */
-GtkWidget *
-gtk_center_box_get_center_widget (GtkCenterBox *box)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
-
- g_return_val_if_fail (GTK_IS_CENTER_BOX (box), NULL);
-
- return priv->center_widget;
-}
-
-static void
-gtk_center_box_finalize (GObject *object)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (GTK_CENTER_BOX (object));
-
- g_list_free (priv->children);
-
- G_OBJECT_CLASS (gtk_center_box_parent_class)->finalize (object);
-}
-
-static void
-gtk_center_box_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (object);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
-
- switch (prop_id)
- {
- case PROP_SPACING:
- g_value_set_int (value, priv->spacing);
- break;
-
- case PROP_CENTER_WIDGET:
- g_value_set_object (value, priv->center_widget);
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_center_box_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (object);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
-
- switch (prop_id)
- {
- case PROP_SPACING:
- priv->spacing = g_value_get_int (value);
- gtk_widget_queue_resize (GTK_WIDGET (box));
- break;
-
- case PROP_CENTER_WIDGET:
- gtk_center_box_set_center_widget (box, g_value_get_object (value));
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_center_box_pack (GtkCenterBox *box,
- GtkWidget *widget,
- GtkPackType pack_type)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- Child *child;
-
- g_return_if_fail (gtk_widget_get_parent (widget) == NULL);
-
- child = g_new (Child, 1);
- child->widget = widget;
- child->pack_type = pack_type;
-
- priv->children = g_list_append (priv->children, child);
-
- gtk_widget_freeze_child_notify (widget);
- gtk_widget_set_parent (widget, GTK_WIDGET (box));
- gtk_widget_child_notify (widget, "pack-type");
- gtk_widget_child_notify (widget, "position");
- gtk_widget_thaw_child_notify (widget);
-}
-
-static void
-gtk_center_box_add (GtkContainer *container,
- GtkWidget *child)
-{
- gtk_center_box_pack (GTK_CENTER_BOX (container), child, GTK_PACK_START);
-}
-
-static GList *
-find_child_link (GtkCenterBox *box,
- GtkWidget *widget)
-{
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *l;
- Child *child;
-
- for (l = priv->children; l; l = l->next)
- {
- child = l->data;
- if (child->widget == widget)
- return l;
- }
-
- return NULL;
-}
-
-static void
-gtk_center_box_remove (GtkContainer *container,
- GtkWidget *widget)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (container);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *l;
- Child *child;
-
- l = find_child_link (box, widget);
- if (l)
- {
- child = l->data;
- gtk_widget_unparent (child->widget);
- priv->children = g_list_delete_link (priv->children, l);
- g_free (child);
- gtk_widget_queue_resize (GTK_WIDGET (container));
- }
-}
-
-static void
-gtk_center_box_forall (GtkContainer *container,
- gboolean include_internals,
- GtkCallback callback,
- gpointer callback_data)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (container);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- Child *child;
- GList *children;
-
- children = priv->children;
- while (children)
- {
- child = children->data;
- children = children->next;
- if (child->pack_type == GTK_PACK_START)
- (* callback) (child->widget, callback_data);
- }
-
- if (priv->center_widget != NULL)
- (* callback) (priv->center_widget, callback_data);
-
- children = priv->children;
- while (children)
- {
- child = children->data;
- children = children->next;
- if (child->pack_type == GTK_PACK_END)
- (* callback) (child->widget, callback_data);
- }
-}
-
-static GType
-gtk_center_box_child_type (GtkContainer *container)
-{
- return GTK_TYPE_WIDGET;
-}
-
-static void
-gtk_center_box_get_child_property (GtkContainer *container,
- GtkWidget *widget,
- guint property_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (container);
- GtkCenterBoxPrivate *priv = gtk_center_box_get_instance_private (box);
- GList *l;
- Child *child;
-
- l = find_child_link (box, widget);
- if (l == NULL)
- {
- g_param_value_set_default (pspec, value);
- return;
- }
-
- child = l->data;
-
- switch (property_id)
- {
- case CHILD_PROP_PACK_TYPE:
- g_value_set_enum (value, child->pack_type);
- break;
-
- case CHILD_PROP_POSITION:
- g_value_set_int (value, g_list_position (priv->children, l));
- break;
-
- default:
- GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
- break;
- }
-}
-
-static void
-gtk_center_box_set_child_property (GtkContainer *container,
- GtkWidget *widget,
- guint property_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GList *l;
- Child *child;
-
- l = find_child_link (GTK_CENTER_BOX (container), widget);
- child = l->data;
-
- switch (property_id)
- {
- case CHILD_PROP_PACK_TYPE:
- child->pack_type = g_value_get_enum (value);
- break;
- default:
- GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
- break;
- }
-}
-
-static GtkWidgetPath *
-gtk_center_box_get_path_for_child (GtkContainer *container,
- GtkWidget *child)
-{
- GtkCenterBox *box = GTK_CENTER_BOX (container);
- GtkWidgetPath *path, *sibling_path;
- GList *list, *children;
-
- path = _gtk_widget_create_path (GTK_WIDGET (container));
-
- if (gtk_widget_get_visible (child))
- {
- gint i, position;
-
- sibling_path = gtk_widget_path_new ();
-
- /* get_all_children works in reverse (!) visible order */
- children = _gtk_container_get_all_children (container);
- if (gtk_widget_get_direction (GTK_WIDGET (box)) == GTK_TEXT_DIR_LTR)
- children = g_list_reverse (children);
-
- position = -1;
- i = 0;
- 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);
-
- if (list->data == child)
- position = i;
- i++;
- }
- g_list_free (children);
-
- 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 gint
-gtk_center_box_draw (GtkWidget *widget,
- cairo_t *cr)
-{
- GtkStyleContext *context;
-
- context = gtk_widget_get_style_context (widget);
-
- gtk_render_background (context, cr, 0, 0,
- gtk_widget_get_allocated_width (widget),
- gtk_widget_get_allocated_height (widget));
- gtk_render_frame (context, cr, 0, 0,
- gtk_widget_get_allocated_width (widget),
- gtk_widget_get_allocated_height (widget));
-
-
- GTK_WIDGET_CLASS (gtk_center_box_parent_class)->draw (widget, cr);
-
- return TRUE;
-}
-
-static void
-gtk_center_box_class_init (GtkCenterBoxClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
- GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
-
- object_class->finalize = gtk_center_box_finalize;
- object_class->get_property = gtk_center_box_get_property;
- object_class->set_property = gtk_center_box_set_property;
-
- widget_class->size_allocate = gtk_center_box_size_allocate;
- widget_class->get_preferred_width = gtk_center_box_get_preferred_width;
- widget_class->get_preferred_height = gtk_center_box_get_preferred_height;
- widget_class->get_preferred_height_for_width = gtk_center_box_get_preferred_height_for_width;
- widget_class->get_preferred_width_for_height = gtk_center_box_get_preferred_width_for_height;
- widget_class->draw = gtk_center_box_draw;
-
- container_class->add = gtk_center_box_add;
- container_class->remove = gtk_center_box_remove;
- container_class->forall = gtk_center_box_forall;
- container_class->child_type = gtk_center_box_child_type;
- container_class->set_child_property = gtk_center_box_set_child_property;
- container_class->get_child_property = gtk_center_box_get_child_property;
- container_class->get_path_for_child = gtk_center_box_get_path_for_child;
- gtk_container_class_handle_border_width (container_class);
-
- gtk_container_class_install_child_property (container_class,
- CHILD_PROP_PACK_TYPE,
- g_param_spec_enum ("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"),
- P_("The index of the child in the parent"),
- -1, G_MAXINT, 0,
- GTK_PARAM_READABLE));
-
- g_object_class_install_property (object_class,
- PROP_SPACING,
- g_param_spec_int ("spacing",
- P_("Spacing"),
- P_("The amount of space between children"),
- 0, G_MAXINT,
- DEFAULT_SPACING,
- GTK_PARAM_READWRITE));
-
- g_object_class_install_property (object_class,
- PROP_CENTER_WIDGET,
- g_param_spec_object ("center-widget",
- P_("Center Widget"),
- P_("Widget to display in center"),
- GTK_TYPE_WIDGET,
- G_PARAM_READWRITE |
- G_PARAM_CONSTRUCT |
- G_PARAM_STATIC_STRINGS));
-
- gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_PANEL);
-}
-
-static void
-gtk_center_box_buildable_add_child (GtkBuildable *buildable,
- GtkBuilder *builder,
- GObject *child,
- const gchar *type)
-{
- if (type && strcmp (type, "center") == 0)
- gtk_center_box_set_center_widget (GTK_CENTER_BOX (buildable), GTK_WIDGET (child));
- else if (!type)
- gtk_container_add (GTK_CONTAINER (buildable), GTK_WIDGET (child));
- else
- GTK_BUILDER_WARN_INVALID_CHILD_TYPE (GTK_CENTER_BOX (buildable), type);
-}
-
-static void
-gtk_center_box_buildable_init (GtkBuildableIface *iface)
-{
- iface->add_child = gtk_center_box_buildable_add_child;
-}
-
-/**
- * gtk_center_box_pack_start:
- * @box: A #GtkCenterBox
- * @child: the #GtkWidget to be added to @box
- *
- * Adds @child to @box, packed with reference to the
- * start of the @box.
- *
- * Since: 3.12
- */
-void
-gtk_center_box_pack_start (GtkCenterBox *box,
- GtkWidget *child)
-{
- gtk_center_box_pack (box, child, GTK_PACK_START);
-}
-
-/**
- * gtk_center_box_pack_end:
- * @box: A #GtkCenterBox
- * @child: the #GtkWidget to be added to @box
- *
- * Adds @child to @box, packed with reference to the
- * end of the @box.
- *
- * Since: 3.12
- */
-void
-gtk_center_box_pack_end (GtkCenterBox *box,
- GtkWidget *child)
-{
- gtk_center_box_pack (box, child, GTK_PACK_END);
-}
-
-/**
- * gtk_center_box_new:
- *
- * Creates a new #GtkCenterBox widget.
- *
- * Returns: a new #GtkCenterBox
- *
- * Since: 3.12
- */
-GtkWidget *
-gtk_center_box_new (void)
-{
- return GTK_WIDGET (g_object_new (GTK_TYPE_CENTER_BOX, NULL));
-}
projects / gtk4.git / commitdiff