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86fb6ab216
gtk3/gtk/gtkcellareabox.c
Tristan Van Berkom 86fb6ab216 Fixed GtkCellAreaIter to notify invalidation of sizes on flush 
Also fixed GtkCellAreaBox to track the iters it creates and flush
them when the overall layout configuration changes (add/remove/reorder/
spacing changed etc).
2010-10-30 21:40:22 +09:00

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/* gtkcellareabox.c
*
* Copyright (C) 2010 Openismus GmbH
*
* Authors:
* Tristan Van Berkom <tristanvb@openismus.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include "config.h"
#include "gtkintl.h"
#include "gtkorientable.h"
#include "gtkcelllayout.h"
#include "gtkcellareabox.h"
#include "gtkcellareaboxiter.h"
#include "gtkprivate.h"
/* GObjectClass */
static void gtk_cell_area_box_finalize (GObject *object);
static void gtk_cell_area_box_dispose (GObject *object);
static void gtk_cell_area_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_cell_area_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* GtkCellAreaClass */
static void gtk_cell_area_box_add (GtkCellArea *area,
GtkCellRenderer *renderer);
static void gtk_cell_area_box_remove (GtkCellArea *area,
GtkCellRenderer *renderer);
static void gtk_cell_area_box_forall (GtkCellArea *area,
GtkCellCallback callback,
gpointer callback_data);
static gint gtk_cell_area_box_event (GtkCellArea *area,
GtkWidget *widget,
GdkEvent *event,
const GdkRectangle *cell_area);
static void gtk_cell_area_box_render (GtkCellArea *area,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *cell_area);
static GtkCellAreaIter *gtk_cell_area_box_create_iter (GtkCellArea *area);
static GtkSizeRequestMode gtk_cell_area_box_get_request_mode (GtkCellArea *area);
static void gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width);
/* GtkCellLayoutIface */
static void gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand);
static void gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gint position);
/* CellInfo/CellGroup metadata handling and convenience functions */
typedef struct {
GtkCellRenderer *renderer;
guint expand : 1; /* Whether the cell expands */
guint pack : 1; /* Whether the cell is packed from the start or end */
guint align : 1; /* Whether to align this cell's position with adjacent rows */
} CellInfo;
typedef struct {
GList *cells;
guint id : 16;
guint expand : 1;
} CellGroup;
static CellInfo *cell_info_new (GtkCellRenderer *renderer,
GtkPackType pack,
gboolean expand,
gboolean align);
static void cell_info_free (CellInfo *info);
static gint cell_info_find (CellInfo *info,
GtkCellRenderer *renderer);
static CellGroup *cell_group_new (guint id);
static void cell_group_free (CellGroup *group);
static GList *list_consecutive_cells (GtkCellAreaBox *box);
static GList *construct_cell_groups (GtkCellAreaBox *box);
static gint count_expand_groups (GtkCellAreaBox *box);
static gint count_expand_cells (CellGroup *group);
static void iter_weak_notify (GtkCellAreaBox *box,
GtkCellAreaIter *dead_iter);
static void flush_iters (GtkCellAreaBox *box);
struct _GtkCellAreaBoxPrivate
{
GtkOrientation orientation;
GList *cells;
GList *groups;
GSList *iters;
gint spacing;
};
enum {
PROP_0,
PROP_ORIENTATION,
PROP_SPACING
};
G_DEFINE_TYPE_WITH_CODE (GtkCellAreaBox, gtk_cell_area_box, GTK_TYPE_CELL_AREA,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_cell_area_box_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
#define OPPOSITE_ORIENTATION(orientation) \
((orientation) == GTK_ORIENTATION_HORIZONTAL ? \
GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL)
static void
gtk_cell_area_box_init (GtkCellAreaBox *box)
{
GtkCellAreaBoxPrivate *priv;
box->priv = G_TYPE_INSTANCE_GET_PRIVATE (box,
GTK_TYPE_CELL_AREA_BOX,
GtkCellAreaBoxPrivate);
priv = box->priv;
priv->orientation = GTK_ORIENTATION_HORIZONTAL;
priv->cells = NULL;
priv->groups = NULL;
priv->iters = NULL;
priv->spacing = 0;
}
static void
gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GtkCellAreaClass *area_class = GTK_CELL_AREA_CLASS (class);
/* GObjectClass */
object_class->finalize = gtk_cell_area_box_finalize;
object_class->dispose = gtk_cell_area_box_dispose;
object_class->set_property = gtk_cell_area_box_set_property;
object_class->get_property = gtk_cell_area_box_get_property;
/* GtkCellAreaClass */
area_class->add = gtk_cell_area_box_add;
area_class->remove = gtk_cell_area_box_remove;
area_class->forall = gtk_cell_area_box_forall;
area_class->event = gtk_cell_area_box_event;
area_class->render = gtk_cell_area_box_render;
area_class->create_iter = gtk_cell_area_box_create_iter;
area_class->get_request_mode = gtk_cell_area_box_get_request_mode;
area_class->get_preferred_width = gtk_cell_area_box_get_preferred_width;
area_class->get_preferred_height = gtk_cell_area_box_get_preferred_height;
area_class->get_preferred_height_for_width = gtk_cell_area_box_get_preferred_height_for_width;
area_class->get_preferred_width_for_height = gtk_cell_area_box_get_preferred_width_for_height;
g_object_class_override_property (object_class, PROP_ORIENTATION, "orientation");
g_object_class_install_property (object_class,
PROP_SPACING,
g_param_spec_int ("spacing",
P_("Spacing"),
P_("Space which is inserted between cells"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (GtkCellAreaBoxPrivate));
}
/*************************************************************
* CellInfo/CellGroup basics and convenience functions *
*************************************************************/
static CellInfo *
cell_info_new (GtkCellRenderer *renderer,
GtkPackType pack,
gboolean expand,
gboolean align)
{
CellInfo *info = g_slice_new (CellInfo);
info->renderer = g_object_ref_sink (renderer);
info->pack = pack;
info->expand = expand;
info->align = align;
return info;
}
static void
cell_info_free (CellInfo *info)
{
g_object_unref (info->renderer);
g_slice_free (CellInfo, info);
}
static gint
cell_info_find (CellInfo *info,
GtkCellRenderer *renderer)
{
return (info->renderer == renderer) ? 0 : -1;
}
static CellGroup *
cell_group_new (guint id)
{
CellGroup *group = g_slice_new0 (CellGroup);
group->id = id;
return group;
}
static void
cell_group_free (CellGroup *group)
{
g_list_free (group->cells);
g_slice_free (CellGroup, group);
}
static GList *
list_consecutive_cells (GtkCellAreaBox *box)
{
GtkCellAreaBoxPrivate *priv = box->priv;
GList *l, *consecutive_cells = NULL, *pack_end_cells = NULL;
CellInfo *info;
/* List cells in consecutive order taking their
* PACK_START/PACK_END options into account
*/
for (l = priv->cells; l; l = l->next)
{
info = l->data;
if (info->pack == GTK_PACK_START)
consecutive_cells = g_list_prepend (consecutive_cells, info);
}
for (l = priv->cells; l; l = l->next)
{
info = l->data;
if (info->pack == GTK_PACK_END)
pack_end_cells = g_list_prepend (pack_end_cells, info);
}
consecutive_cells = g_list_reverse (consecutive_cells);
consecutive_cells = g_list_concat (consecutive_cells, pack_end_cells);
return consecutive_cells;
}
static GList *
construct_cell_groups (GtkCellAreaBox *box)
{
GtkCellAreaBoxPrivate *priv = box->priv;
CellGroup *group;
GList *cells, *l;
GList *groups = NULL;
guint id = 0;
if (!priv->cells)
return NULL;
cells = list_consecutive_cells (box);
group = cell_group_new (id++);
groups = g_list_prepend (groups, group);
for (l = cells; l; l = l->next)
{
CellInfo *info = l->data;
/* A new group starts with any aligned cell, the first group is implied */
if (info->align && l != cells)
{
group = cell_group_new (id++);
groups = g_list_prepend (groups, group);
}
group->cells = g_list_prepend (group->cells, info);
/* A group expands if it contains any expand cells */
if (info->expand)
group->expand = TRUE;
}
g_list_free (cells);
for (l = cells; l; l = l->next)
{
group = l->data;
group->cells = g_list_reverse (group->cells);
}
return g_list_reverse (groups);
}
static gint
count_expand_groups (GtkCellAreaBox *box)
{
GtkCellAreaBoxPrivate *priv = box->priv;
GList *l;
gint expand_groups = 0;
for (l = priv->groups; l; l = l->next)
{
CellGroup *group = l->data;
if (group->expand)
expand_groups++;
}
return expand_groups;
}
static gint
count_expand_cells (CellGroup *group)
{
GList *l;
gint expand_cells = 0;
if (!group->expand)
return 0;
for (l = group->cells; l; l = l->next)
{
CellInfo *info = l->data;
if (info->expand)
expand_cells++;
}
return expand_cells;
}
static void
iter_weak_notify (GtkCellAreaBox *box,
GtkCellAreaIter *dead_iter)
{
GtkCellAreaBoxPrivate *priv = box->priv;
priv->iters = g_slist_remove (priv->iters, dead_iter);
}
static void
flush_iters (GtkCellAreaBox *box)
{
GtkCellAreaBoxPrivate *priv = box->priv;
GSList *l;
/* When the box layout changes, iters need to
* be flushed and sizes for the box get requested again
*/
for (l = priv->iters; l; l = l->next)
{
GtkCellAreaIter *iter = l->data;
gtk_cell_area_iter_flush (iter);
}
}
/*************************************************************
* GObjectClass *
*************************************************************/
static void
gtk_cell_area_box_finalize (GObject *object)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
GtkCellAreaBoxPrivate *priv = box->priv;
GSList *l;
for (l = priv->iters; l; l = l->next)
g_object_weak_unref (G_OBJECT (l->data), (GWeakNotify)iter_weak_notify, box);
g_slist_free (priv->iters);
G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->finalize (object);
}
static void
gtk_cell_area_box_dispose (GObject *object)
{
G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->dispose (object);
}
static void
gtk_cell_area_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
switch (prop_id)
{
case PROP_SPACING:
gtk_cell_area_box_set_spacing (box, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_cell_area_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
switch (prop_id)
{
case PROP_SPACING:
g_value_set_int (value, gtk_cell_area_box_get_spacing (box));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*************************************************************
* GtkCellAreaClass *
*************************************************************/
static void
gtk_cell_area_box_add (GtkCellArea *area,
GtkCellRenderer *renderer)
{
gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area),
renderer, FALSE, TRUE);
}
static void
gtk_cell_area_box_remove (GtkCellArea *area,
GtkCellRenderer *renderer)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
GList *node;
node = g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find);
if (node)
{
CellInfo *info = node->data;
cell_info_free (info);
priv->cells = g_list_delete_link (priv->cells, node);
/* Reconstruct cell groups */
g_list_foreach (priv->groups, (GFunc)cell_group_free, NULL);
g_list_free (priv->groups);
priv->groups = construct_cell_groups (box);
/* Notify that size needs to be requested again */
flush_iters (box);
}
else
g_warning ("Trying to remove a cell renderer that is not present GtkCellAreaBox");
}
static void
gtk_cell_area_box_forall (GtkCellArea *area,
GtkCellCallback callback,
gpointer callback_data)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
GList *list;
for (list = priv->cells; list; list = list->next)
{
CellInfo *info = list->data;
callback (info->renderer, callback_data);
}
}
static gint
gtk_cell_area_box_event (GtkCellArea *area,
GtkWidget *widget,
GdkEvent *event,
const GdkRectangle *cell_area)
{
return 0;
}
static void
gtk_cell_area_box_render (GtkCellArea *area,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *cell_area)
{
}
static GtkCellAreaIter *
gtk_cell_area_box_create_iter (GtkCellArea *area)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
GtkCellAreaIter *iter =
(GtkCellAreaIter *)g_object_new (GTK_TYPE_CELL_AREA_BOX_ITER, NULL);
priv->iters = g_slist_prepend (priv->iters, iter);
g_object_weak_ref (G_OBJECT (iter), (GWeakNotify)iter_weak_notify, box);
return iter;
}
static GtkSizeRequestMode
gtk_cell_area_box_get_request_mode (GtkCellArea *area)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxPrivate *priv = box->priv;
return (priv->orientation) == GTK_ORIENTATION_HORIZONTAL ?
GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH :
GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
}
static void
get_renderer_size (GtkCellRenderer *renderer,
GtkOrientation orientation,
GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
if (for_size < 0)
gtk_cell_renderer_get_preferred_width (renderer, widget, minimum_size, natural_size);
else
gtk_cell_renderer_get_preferred_width_for_height (renderer, widget, for_size,
minimum_size, natural_size);
}
else /* GTK_ORIENTATION_VERTICAL */
{
if (for_size < 0)
gtk_cell_renderer_get_preferred_height (renderer, widget, minimum_size, natural_size);
else
gtk_cell_renderer_get_preferred_height_for_width (renderer, widget, for_size,
minimum_size, natural_size);
}
}
static void
compute_size (GtkCellAreaBox *box,
GtkOrientation orientation,
GtkCellAreaBoxIter *iter,
GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
GtkCellAreaBoxPrivate *priv = box->priv;
CellGroup *group;
CellInfo *info;
GList *cell_list, *group_list;
gint min_size = 0;
gint nat_size = 0;
for (group_list = priv->groups; group_list; group_list = group_list->next)
{
gint group_min_size = 0;
gint group_nat_size = 0;
group = group_list->data;
for (cell_list = group->cells; cell_list; cell_list = cell_list->next)
{
gint renderer_min_size, renderer_nat_size;
info = cell_list->data;
get_renderer_size (info->renderer, orientation, widget, for_size,
&renderer_min_size, &renderer_nat_size);
if (orientation == priv->orientation)
{
if (min_size > 0)
{
min_size += priv->spacing;
nat_size += priv->spacing;
}
if (group_min_size > 0)
{
group_min_size += priv->spacing;
group_nat_size += priv->spacing;
}
min_size += renderer_min_size;
nat_size += renderer_nat_size;
group_min_size += renderer_min_size;
group_nat_size += renderer_nat_size;
}
else
{
min_size = MAX (min_size, renderer_min_size);
nat_size = MAX (nat_size, renderer_nat_size);
group_min_size = MAX (group_min_size, renderer_min_size);
group_nat_size = MAX (group_nat_size, renderer_nat_size);
}
}
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
if (for_size < 0)
gtk_cell_area_box_iter_push_group_width (iter, group->id, group_min_size, group_nat_size);
else
gtk_cell_area_box_iter_push_group_width_for_height (iter, group->id, for_size,
group_min_size, group_nat_size);
}
else
{
if (for_size < 0)
gtk_cell_area_box_iter_push_group_height (iter, group->id, group_min_size, group_nat_size);
else
gtk_cell_area_box_iter_push_group_height_for_width (iter, group->id, for_size,
group_min_size, group_nat_size);
}
}
*minimum_size = min_size;
*natural_size = nat_size;
}
GtkRequestedSize *
get_group_sizes (CellGroup *group,
GtkOrientation orientation,
GtkWidget *widget,
gint *n_sizes)
{
GtkRequestedSize *sizes;
GList *l;
gint i;
*n_sizes = g_list_length (group->cells);
sizes = g_new (GtkRequestedSize, *n_sizes);
for (l = group->cells, i = 0; l; l = l->next, i++)
{
CellInfo *info = l->data;
sizes[i].data = info;
get_renderer_size (info->renderer,
orientation, widget, -1,
&sizes[i].minimum_size,
&sizes[i].natural_size);
}
return sizes;
}
static void
compute_group_size_for_opposing_orientation (GtkCellAreaBox *box,
CellGroup *group,
GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
GtkCellAreaBoxPrivate *priv = box->priv;
/* Exception for single cell groups */
if (!group->cells->next)
{
CellInfo *info = group->cells->data;
get_renderer_size (info->renderer,
OPPOSITE_ORIENTATION (priv->orientation),
widget, for_size, minimum_size, natural_size);
}
else
{
GtkRequestedSize *orientation_sizes;
CellInfo *info;
gint n_sizes, i;
gint n_expand_cells = count_expand_cells (group);
gint avail_size = for_size;
gint extra_size, extra_extra;
gint min_size = 0, nat_size = 0;
orientation_sizes = get_group_sizes (group, priv->orientation, widget, &n_sizes);
/* First naturally allocate the cells in the group into the for_size */
avail_size -= (n_sizes - 1) * priv->spacing;
for (i = 0; i < n_sizes; i++)
avail_size -= orientation_sizes[i].minimum_size;
avail_size = gtk_distribute_natural_allocation (avail_size, n_sizes, orientation_sizes);
/* Calculate/distribute expand for cells */
if (n_expand_cells > 0)
{
extra_size = avail_size / n_expand_cells;
extra_extra = avail_size % n_expand_cells;
}
else
extra_size = extra_extra = 0;
for (i = 0; i < n_sizes; i++)
{
gint cell_min, cell_nat;
info = orientation_sizes[i].data;
if (info->expand)
{
orientation_sizes[i].minimum_size += extra_size;
if (extra_extra)
{
orientation_sizes[i].minimum_size++;
extra_extra--;
}
}
get_renderer_size (info->renderer,
OPPOSITE_ORIENTATION (priv->orientation),
widget,
orientation_sizes[i].minimum_size,
&cell_min, &cell_nat);
min_size = MAX (min_size, cell_min);
nat_size = MAX (nat_size, cell_nat);
}
*minimum_size = min_size;
*natural_size = nat_size;
g_free (orientation_sizes);
}
}
static void
compute_size_for_opposing_orientation (GtkCellAreaBox *box,
GtkCellAreaBoxIter *iter,
GtkWidget *widget,
gint for_size,
gint *minimum_size,
gint *natural_size)
{
GtkCellAreaBoxPrivate *priv = box->priv;
CellGroup *group;
GList *group_list;
GtkRequestedSize *orientation_sizes;
gint n_groups, n_expand_groups, i;
gint avail_size = for_size;
gint extra_size, extra_extra;
gint min_size = 0, nat_size = 0;
n_expand_groups = count_expand_groups (box);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
orientation_sizes = gtk_cell_area_box_iter_get_widths (iter, &n_groups);
else
orientation_sizes = gtk_cell_area_box_iter_get_heights (iter, &n_groups);
/* First start by naturally allocating space among groups of cells */
avail_size -= (n_groups - 1) * priv->spacing;
for (i = 0; i < n_groups; i++)
avail_size -= orientation_sizes[i].minimum_size;
avail_size = gtk_distribute_natural_allocation (avail_size, n_groups, orientation_sizes);
/* Calculate/distribute expand for groups */
if (n_expand_groups > 0)
{
extra_size = avail_size / n_expand_groups;
extra_extra = avail_size % n_expand_groups;
}
else
extra_size = extra_extra = 0;
/* Now we need to naturally allocate sizes for cells in each group
* and push the height-for-width for each group accordingly while accumulating
* the overall height-for-width for this row.
*/
for (group_list = priv->groups; group_list; group_list = group_list->next)
{
gint group_min, group_nat;
group = group_list->data;
if (group->expand)
{
orientation_sizes[group->id].minimum_size += extra_size;
if (extra_extra)
{
orientation_sizes[group->id].minimum_size++;
extra_extra--;
}
}
/* Now we have the allocation for the group, request it's height-for-width */
compute_group_size_for_opposing_orientation (box, group, widget,
orientation_sizes[group->id].minimum_size,
&group_min, &group_nat);
min_size = MAX (min_size, group_min);
nat_size = MAX (nat_size, group_nat);
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_cell_area_box_iter_push_group_height_for_width (iter, group->id, for_size,
group_min, group_nat);
}
else
{
gtk_cell_area_box_iter_push_group_width_for_height (iter, group->id, for_size,
group_min, group_nat);
}
}
*minimum_size = min_size;
*natural_size = nat_size;
g_free (orientation_sizes);
}
static void
gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxIter *box_iter;
gint min_width, nat_width;
g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (iter));
box_iter = GTK_CELL_AREA_BOX_ITER (iter);
/* Compute the size of all renderers for current row data,
* bumping cell alignments in the iter along the way */
compute_size (box, GTK_ORIENTATION_HORIZONTAL,
box_iter, widget, -1, &min_width, &nat_width);
if (minimum_width)
*minimum_width = min_width;
if (natural_width)
*natural_width = nat_width;
}
static void
gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxIter *box_iter;
gint min_height, nat_height;
g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (iter));
box_iter = GTK_CELL_AREA_BOX_ITER (iter);
/* Compute the size of all renderers for current row data,
* bumping cell alignments in the iter along the way */
compute_size (box, GTK_ORIENTATION_VERTICAL,
box_iter, widget, -1, &min_height, &nat_height);
if (minimum_height)
*minimum_height = min_height;
if (natural_height)
*natural_height = nat_height;
}
static void
gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxIter *box_iter;
GtkCellAreaBoxPrivate *priv;
gint min_height, nat_height;
g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (iter));
box_iter = GTK_CELL_AREA_BOX_ITER (iter);
priv = box->priv;
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
{
/* Add up vertical requests of height for width and push the overall
* cached sizes for alignments */
compute_size (box, priv->orientation, box_iter, widget, width, &min_height, &nat_height);
}
else
{
/* Juice: virtually allocate cells into the for_width using the
* alignments and then return the overall height for that width, and cache it */
compute_size_for_opposing_orientation (box, box_iter, widget, width, &min_height, &nat_height);
}
if (minimum_height)
*minimum_height = min_height;
if (natural_height)
*natural_height = nat_height;
}
static void
gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
GtkCellAreaIter *iter,
GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
GtkCellAreaBoxIter *box_iter;
GtkCellAreaBoxPrivate *priv;
gint min_width, nat_width;
g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (iter));
box_iter = GTK_CELL_AREA_BOX_ITER (iter);
priv = box->priv;
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
{
/* Add up horizontal requests of width for height and push the overall
* cached sizes for alignments */
compute_size (box, priv->orientation, box_iter, widget, height, &min_width, &nat_width);
}
else
{
/* Juice: horizontally allocate cells into the for_height using the
* alignments and then return the overall width for that height, and cache it */
compute_size_for_opposing_orientation (box, box_iter, widget, height, &min_width, &nat_width);
}
if (minimum_width)
*minimum_width = min_width;
if (natural_width)
*natural_width = nat_width;
}
/*************************************************************
* GtkCellLayoutIface *
*************************************************************/
static void
gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_cell_area_box_layout_pack_start;
iface->pack_end = gtk_cell_area_box_layout_pack_end;
iface->reorder = gtk_cell_area_box_layout_reorder;
}
static void
gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand)
{
gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (cell_layout), renderer, expand, TRUE);
}
static void
gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gboolean expand)
{
gtk_cell_area_box_pack_end (GTK_CELL_AREA_BOX (cell_layout), renderer, expand, TRUE);
}
static void
gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *renderer,
gint position)
{
GtkCellAreaBox *box = GTK_CELL_AREA_BOX (cell_layout);
GtkCellAreaBoxPrivate *priv = box->priv;
GList *node;
CellInfo *info;
node = g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find);
if (node)
{
info = node->data;
priv->cells = g_list_delete_link (priv->cells, node);
priv->cells = g_list_insert (priv->cells, info, position);
/* Reconstruct cell groups */
g_list_foreach (priv->groups, (GFunc)cell_group_free, NULL);
g_list_free (priv->groups);
priv->groups = construct_cell_groups (box);
/* Notify that size needs to be requested again */
flush_iters (box);
}
}
/*************************************************************
* API *
*************************************************************/
GtkCellArea *
gtk_cell_area_box_new (void)
{
return (GtkCellArea *)g_object_new (GTK_TYPE_CELL_AREA_BOX, NULL);
}
void
gtk_cell_area_box_pack_start (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand,
gboolean align)
{
GtkCellAreaBoxPrivate *priv;
CellInfo *info;
g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
priv = box->priv;
if (g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find))
{
g_warning ("Refusing to add the same cell renderer to a GtkCellAreaBox twice");
return;
}
info = cell_info_new (renderer, GTK_PACK_START, expand, align);
priv->cells = g_list_append (priv->cells, info);
/* Reconstruct cell groups */
g_list_foreach (priv->groups, (GFunc)cell_group_free, NULL);
g_list_free (priv->groups);
priv->groups = construct_cell_groups (box);
/* Notify that size needs to be requested again */
flush_iters (box);
}
void
gtk_cell_area_box_pack_end (GtkCellAreaBox *box,
GtkCellRenderer *renderer,
gboolean expand,
gboolean align)
{
GtkCellAreaBoxPrivate *priv;
CellInfo *info;
g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
priv = box->priv;
if (g_list_find_custom (priv->cells, renderer,
(GCompareFunc)cell_info_find))
{
g_warning ("Refusing to add the same cell renderer to a GtkCellArea twice");
return;
}
info = cell_info_new (renderer, GTK_PACK_END, expand, align);
priv->cells = g_list_append (priv->cells, info);
/* Reconstruct cell groups */
g_list_foreach (priv->groups, (GFunc)cell_group_free, NULL);
g_list_free (priv->groups);
priv->groups = construct_cell_groups (box);
/* Notify that size needs to be requested again */
flush_iters (box);
}
gint
gtk_cell_area_box_get_spacing (GtkCellAreaBox *box)
{
g_return_val_if_fail (GTK_IS_CELL_AREA_BOX (box), 0);
return box->priv->spacing;
}
void
gtk_cell_area_box_set_spacing (GtkCellAreaBox *box,
gint spacing)
{
GtkCellAreaBoxPrivate *priv;
g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
priv = box->priv;
if (priv->spacing != spacing)
{
priv->spacing = spacing;
g_object_notify (G_OBJECT (box), "spacing");
/* Notify that size needs to be requested again */
flush_iters (box);
}
}
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