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https://gitlab.gnome.org/GNOME/calls.git
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f997048a38
This guards against accidentally including configuration from elsewhere.
917 lines
24 KiB
C
917 lines
24 KiB
C
/*
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* Copyright © 2018 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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/* #include "calls-config.h" */
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#include "gtkfilterlistmodel.h"
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#include "gtkrbtreeprivate.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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/**
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* SECTION:gtkfilterlistmodel
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* @title: GtkFilterListModel
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* @short_description: A list model that filters its items
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* @see_also: #GListModel, #GtkFilter
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*
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* #GtkFilterListModel is a list model that filters a given other
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* listmodel.
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* It hides some elements from the other model according to
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* criteria given by a #GtkFilter.
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*/
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enum {
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PROP_0,
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PROP_FILTER,
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PROP_ITEM_TYPE,
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PROP_MODEL,
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NUM_PROPERTIES
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};
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typedef struct _FilterNode FilterNode;
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typedef struct _FilterAugment FilterAugment;
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struct _FilterNode
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{
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guint visible : 1;
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};
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struct _FilterAugment
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{
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guint n_items;
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guint n_visible;
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};
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struct _GtkFilterListModel
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{
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GObject parent_instance;
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GType item_type;
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GListModel *model;
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GtkFilter *filter;
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GtkFilterMatch strictness;
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GtkRbTree *items; /* NULL if strictness != GTK_FILTER_MATCH_SOME */
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};
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struct _GtkFilterListModelClass
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{
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GObjectClass parent_class;
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};
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static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
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static void
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gtk_filter_list_model_augment (GtkRbTree *filter,
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gpointer _aug,
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gpointer _node,
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gpointer left,
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gpointer right)
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{
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FilterNode *node = _node;
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FilterAugment *aug = _aug;
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aug->n_items = 1;
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aug->n_visible = node->visible ? 1 : 0;
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if (left)
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{
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FilterAugment *left_aug = gtk_rb_tree_get_augment (filter, left);
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aug->n_items += left_aug->n_items;
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aug->n_visible += left_aug->n_visible;
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}
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if (right)
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{
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FilterAugment *right_aug = gtk_rb_tree_get_augment (filter, right);
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aug->n_items += right_aug->n_items;
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aug->n_visible += right_aug->n_visible;
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}
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}
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static FilterNode *
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gtk_filter_list_model_get_nth_filtered (GtkRbTree *tree,
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guint position,
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guint *out_unfiltered)
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{
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FilterNode *node, *tmp;
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guint unfiltered;
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node = gtk_rb_tree_get_root (tree);
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unfiltered = 0;
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while (node)
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{
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tmp = gtk_rb_tree_node_get_left (node);
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if (tmp)
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{
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FilterAugment *aug = gtk_rb_tree_get_augment (tree, tmp);
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if (position < aug->n_visible)
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{
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node = tmp;
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continue;
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}
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position -= aug->n_visible;
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unfiltered += aug->n_items;
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}
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if (node->visible)
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{
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if (position == 0)
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break;
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position--;
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}
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unfiltered++;
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node = gtk_rb_tree_node_get_right (node);
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}
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if (out_unfiltered)
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*out_unfiltered = unfiltered;
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return node;
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}
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static FilterNode *
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gtk_filter_list_model_get_nth (GtkRbTree *tree,
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guint position,
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guint *out_filtered)
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{
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FilterNode *node, *tmp;
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guint filtered;
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node = gtk_rb_tree_get_root (tree);
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filtered = 0;
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while (node)
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{
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tmp = gtk_rb_tree_node_get_left (node);
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if (tmp)
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{
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FilterAugment *aug = gtk_rb_tree_get_augment (tree, tmp);
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if (position < aug->n_items)
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{
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node = tmp;
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continue;
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}
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position -= aug->n_items;
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filtered += aug->n_visible;
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}
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if (position == 0)
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break;
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position--;
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if (node->visible)
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filtered++;
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node = gtk_rb_tree_node_get_right (node);
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}
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if (out_filtered)
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*out_filtered = filtered;
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return node;
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}
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static GType
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gtk_filter_list_model_get_item_type (GListModel *list)
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{
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GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (list);
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return self->item_type;
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}
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static guint
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gtk_filter_list_model_get_n_items (GListModel *list)
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{
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GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (list);
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FilterAugment *aug;
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FilterNode *node;
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switch (self->strictness)
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{
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case GTK_FILTER_MATCH_NONE:
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return 0;
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case GTK_FILTER_MATCH_ALL:
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return g_list_model_get_n_items (self->model);
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default:
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g_assert_not_reached ();
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G_GNUC_FALLTHROUGH;
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case GTK_FILTER_MATCH_SOME:
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break;
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}
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node = gtk_rb_tree_get_root (self->items);
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if (node == NULL)
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return 0;
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aug = gtk_rb_tree_get_augment (self->items, node);
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return aug->n_visible;
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}
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static gpointer
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gtk_filter_list_model_get_item (GListModel *list,
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guint position)
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{
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GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (list);
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guint unfiltered;
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switch (self->strictness)
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{
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case GTK_FILTER_MATCH_NONE:
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return NULL;
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case GTK_FILTER_MATCH_ALL:
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unfiltered = position;
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break;
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default:
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g_assert_not_reached ();
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G_GNUC_FALLTHROUGH;
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case GTK_FILTER_MATCH_SOME:
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gtk_filter_list_model_get_nth_filtered (self->items, position, &unfiltered);
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break;
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}
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return g_list_model_get_item (self->model, unfiltered);
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}
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static void
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gtk_filter_list_model_model_init (GListModelInterface *iface)
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{
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iface->get_item_type = gtk_filter_list_model_get_item_type;
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iface->get_n_items = gtk_filter_list_model_get_n_items;
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iface->get_item = gtk_filter_list_model_get_item;
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}
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G_DEFINE_TYPE_WITH_CODE (GtkFilterListModel, gtk_filter_list_model, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_filter_list_model_model_init))
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static gboolean
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gtk_filter_list_model_run_filter (GtkFilterListModel *self,
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guint position)
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{
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gpointer item;
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gboolean visible;
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/* all other cases should have beeen optimized away */
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g_assert (self->strictness == GTK_FILTER_MATCH_SOME);
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item = g_list_model_get_item (self->model, position);
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visible = gtk_filter_match (self->filter, item);
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g_object_unref (item);
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return visible;
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}
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static guint
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gtk_filter_list_model_add_items (GtkFilterListModel *self,
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FilterNode *after,
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guint position,
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guint n_items)
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{
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FilterNode *node;
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guint i, n_visible;
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n_visible = 0;
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for (i = 0; i < n_items; i++)
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{
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node = gtk_rb_tree_insert_before (self->items, after);
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node->visible = gtk_filter_list_model_run_filter (self, position + i);
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if (node->visible)
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n_visible++;
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}
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return n_visible;
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}
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static void
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gtk_filter_list_model_items_changed_cb (GListModel *model,
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guint position,
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guint removed,
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guint added,
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GtkFilterListModel *self)
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{
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FilterNode *node;
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guint i, filter_position, filter_removed, filter_added;
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switch (self->strictness)
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{
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case GTK_FILTER_MATCH_NONE:
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return;
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case GTK_FILTER_MATCH_ALL:
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g_list_model_items_changed (G_LIST_MODEL (self), position, removed, added);
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return;
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default:
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g_assert_not_reached ();
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G_GNUC_FALLTHROUGH;
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case GTK_FILTER_MATCH_SOME:
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break;
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}
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node = gtk_filter_list_model_get_nth (self->items, position, &filter_position);
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filter_removed = 0;
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for (i = 0; i < removed; i++)
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{
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FilterNode *next = gtk_rb_tree_node_get_next (node);
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if (node->visible)
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filter_removed++;
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gtk_rb_tree_remove (self->items, node);
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node = next;
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}
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filter_added = gtk_filter_list_model_add_items (self, node, position, added);
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if (filter_removed > 0 || filter_added > 0)
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g_list_model_items_changed (G_LIST_MODEL (self), filter_position, filter_removed, filter_added);
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}
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static void
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gtk_filter_list_model_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (object);
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switch (prop_id)
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{
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case PROP_FILTER:
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gtk_filter_list_model_set_filter (self, g_value_get_object (value));
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break;
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case PROP_ITEM_TYPE:
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self->item_type = g_value_get_gtype (value);
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break;
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case PROP_MODEL:
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gtk_filter_list_model_set_model (self, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_filter_list_model_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (object);
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switch (prop_id)
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{
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case PROP_FILTER:
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g_value_set_object (value, self->filter);
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break;
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case PROP_ITEM_TYPE:
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g_value_set_gtype (value, self->item_type);
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break;
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case PROP_MODEL:
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g_value_set_object (value, self->model);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_filter_list_model_clear_model (GtkFilterListModel *self)
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{
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if (self->model == NULL)
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return;
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g_signal_handlers_disconnect_by_func (self->model, gtk_filter_list_model_items_changed_cb, self);
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g_clear_object (&self->model);
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if (self->items)
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gtk_rb_tree_remove_all (self->items);
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}
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/*<private>
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* gtk_filter_list_model_find_filtered:
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* @self: a #GtkFilterListModel
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* @start: (out) (caller-allocates): number of unfiltered items
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* at start of list
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* @end: (out) (caller-allocates): number of unfiltered items
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* at end of list
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* @n_items: (out) (caller-allocates): number of unfiltered items in
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* list
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*
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* Checks if elements in self->items are filtered out and returns
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* the range that they occupy.
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* This function is intended to be used for GListModel::items-changed
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* emissions, so it is called in an intermediate state for @self.
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*
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* Returns: %TRUE if elements are filtered out, %FALSE if none are
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**/
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static gboolean
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gtk_filter_list_model_find_filtered (GtkFilterListModel *self,
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guint *start,
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guint *end,
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guint *n_items)
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{
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FilterNode *root, *node, *tmp;
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FilterAugment *aug;
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if (self->items == NULL || self->model == NULL)
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return FALSE;
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root = gtk_rb_tree_get_root (self->items);
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if (root == NULL)
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return FALSE; /* empty parent model */
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aug = gtk_rb_tree_get_augment (self->items, root);
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if (aug->n_items == aug->n_visible)
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return FALSE; /* all items visible */
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/* find first filtered */
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*start = 0;
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*end = 0;
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*n_items = aug->n_visible;
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node = root;
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while (node)
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{
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tmp = gtk_rb_tree_node_get_left (node);
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if (tmp)
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{
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aug = gtk_rb_tree_get_augment (self->items, tmp);
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if (aug->n_visible < aug->n_items)
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{
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node = tmp;
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continue;
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}
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*start += aug->n_items;
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}
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if (!node->visible)
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break;
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(*start)++;
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node = gtk_rb_tree_node_get_right (node);
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}
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/* find last filtered by doing everything the opposite way */
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node = root;
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while (node)
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{
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tmp = gtk_rb_tree_node_get_right (node);
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if (tmp)
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{
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aug = gtk_rb_tree_get_augment (self->items, tmp);
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if (aug->n_visible < aug->n_items)
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{
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node = tmp;
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continue;
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}
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*end += aug->n_items;
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}
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if (!node->visible)
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break;
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(*end)++;
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node = gtk_rb_tree_node_get_left (node);
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}
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return TRUE;
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}
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static void
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gtk_filter_list_model_refilter (GtkFilterListModel *self);
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|
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static void
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gtk_filter_list_model_update_strictness_and_refilter (GtkFilterListModel *self)
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{
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GtkFilterMatch new_strictness;
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if (self->model == NULL)
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new_strictness = GTK_FILTER_MATCH_NONE;
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else if (self->filter == NULL)
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new_strictness = GTK_FILTER_MATCH_ALL;
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else
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new_strictness = gtk_filter_get_strictness (self->filter);
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/* don't set self->strictness yet so get_n_items() and friends return old values */
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switch (new_strictness)
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{
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case GTK_FILTER_MATCH_NONE:
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{
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guint n_before = g_list_model_get_n_items (G_LIST_MODEL (self));
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g_clear_pointer (&self->items, gtk_rb_tree_unref);
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self->strictness = new_strictness;
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if (n_before > 0)
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g_list_model_items_changed (G_LIST_MODEL (self), 0, n_before, 0);
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}
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break;
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case GTK_FILTER_MATCH_ALL:
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switch (self->strictness)
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{
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case GTK_FILTER_MATCH_NONE:
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self->strictness = new_strictness;
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g_list_model_items_changed (G_LIST_MODEL (self), 0, 0, g_list_model_get_n_items (self->model));
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break;
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case GTK_FILTER_MATCH_ALL:
|
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self->strictness = new_strictness;
|
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break;
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|
default:
|
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case GTK_FILTER_MATCH_SOME:
|
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{
|
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guint start, end, n_before, n_after;
|
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self->strictness = new_strictness;
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if (gtk_filter_list_model_find_filtered (self, &start, &end, &n_before))
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{
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n_after = g_list_model_get_n_items (G_LIST_MODEL (self));
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g_clear_pointer (&self->items, gtk_rb_tree_unref);
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g_list_model_items_changed (G_LIST_MODEL (self), start, n_before - end - start, n_after - end - start);
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}
|
|
else
|
|
{
|
|
g_clear_pointer (&self->items, gtk_rb_tree_unref);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
G_GNUC_FALLTHROUGH;
|
|
case GTK_FILTER_MATCH_SOME:
|
|
switch (self->strictness)
|
|
{
|
|
case GTK_FILTER_MATCH_NONE:
|
|
{
|
|
guint n_after;
|
|
self->strictness = new_strictness;
|
|
self->items = gtk_rb_tree_new (FilterNode,
|
|
FilterAugment,
|
|
gtk_filter_list_model_augment,
|
|
NULL, NULL);
|
|
n_after = gtk_filter_list_model_add_items (self, NULL, 0, g_list_model_get_n_items (self->model));
|
|
if (n_after > 0)
|
|
g_list_model_items_changed (G_LIST_MODEL (self), 0, 0, n_after);
|
|
}
|
|
break;
|
|
case GTK_FILTER_MATCH_ALL:
|
|
{
|
|
guint start, end, n_before, n_after;
|
|
self->strictness = new_strictness;
|
|
self->items = gtk_rb_tree_new (FilterNode,
|
|
FilterAugment,
|
|
gtk_filter_list_model_augment,
|
|
NULL, NULL);
|
|
n_before = g_list_model_get_n_items (self->model);
|
|
gtk_filter_list_model_add_items (self, NULL, 0, n_before);
|
|
if (gtk_filter_list_model_find_filtered (self, &start, &end, &n_after))
|
|
g_list_model_items_changed (G_LIST_MODEL (self), start, n_before - end - start, n_after - end - start);
|
|
}
|
|
break;
|
|
default:
|
|
case GTK_FILTER_MATCH_SOME:
|
|
gtk_filter_list_model_refilter (self);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_filter_changed_cb (GtkFilter *filter,
|
|
GtkFilterChange change,
|
|
GtkFilterListModel *self)
|
|
{
|
|
gtk_filter_list_model_update_strictness_and_refilter (self);
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_clear_filter (GtkFilterListModel *self)
|
|
{
|
|
if (self->filter == NULL)
|
|
return;
|
|
|
|
g_signal_handlers_disconnect_by_func (self->filter, gtk_filter_list_model_filter_changed_cb, self);
|
|
g_clear_object (&self->filter);
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_dispose (GObject *object)
|
|
{
|
|
GtkFilterListModel *self = GTK_FILTER_LIST_MODEL (object);
|
|
|
|
gtk_filter_list_model_clear_model (self);
|
|
gtk_filter_list_model_clear_filter (self);
|
|
g_clear_pointer (&self->items, gtk_rb_tree_unref);
|
|
|
|
G_OBJECT_CLASS (gtk_filter_list_model_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_class_init (GtkFilterListModelClass *class)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
|
|
|
|
gobject_class->set_property = gtk_filter_list_model_set_property;
|
|
gobject_class->get_property = gtk_filter_list_model_get_property;
|
|
gobject_class->dispose = gtk_filter_list_model_dispose;
|
|
|
|
/**
|
|
* GtkFilterListModel:filter:
|
|
*
|
|
* The filter for this model
|
|
*/
|
|
properties[PROP_FILTER] =
|
|
g_param_spec_object ("filter",
|
|
P_("Filter"),
|
|
P_("The filter set for this model"),
|
|
GTK_TYPE_FILTER,
|
|
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
|
|
|
|
/**
|
|
* GtkFilterListModel:item-type:
|
|
*
|
|
* The #GType for elements of this object
|
|
*/
|
|
properties[PROP_ITEM_TYPE] =
|
|
g_param_spec_gtype ("item-type",
|
|
P_("Item type"),
|
|
P_("The type of elements of this object"),
|
|
G_TYPE_OBJECT,
|
|
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
|
|
|
|
/**
|
|
* GtkFilterListModel:model:
|
|
*
|
|
* The model being filtered
|
|
*/
|
|
properties[PROP_MODEL] =
|
|
g_param_spec_object ("model",
|
|
P_("Model"),
|
|
P_("The model being filtered"),
|
|
G_TYPE_LIST_MODEL,
|
|
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
|
|
|
|
g_object_class_install_properties (gobject_class, NUM_PROPERTIES, properties);
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_init (GtkFilterListModel *self)
|
|
{
|
|
self->strictness = GTK_FILTER_MATCH_NONE;
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_new:
|
|
* @model: the model to sort
|
|
* @filter: (allow-none): filter or %NULL to not filter items
|
|
*
|
|
* Creates a new #GtkFilterListModel that will filter @model using the given
|
|
* @filter.
|
|
*
|
|
* Returns: a new #GtkFilterListModel
|
|
**/
|
|
GtkFilterListModel *
|
|
gtk_filter_list_model_new (GListModel *model,
|
|
GtkFilter *filter)
|
|
{
|
|
GtkFilterListModel *result;
|
|
|
|
g_return_val_if_fail (G_IS_LIST_MODEL (model), NULL);
|
|
|
|
result = g_object_new (GTK_TYPE_FILTER_LIST_MODEL,
|
|
"item-type", g_list_model_get_item_type (model),
|
|
"model", model,
|
|
"filter", filter,
|
|
NULL);
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_new_for_type:
|
|
* @item_type: the type of the items that will be returned
|
|
*
|
|
* Creates a new empty filter list model set up to return items of type @item_type.
|
|
* It is up to the application to set a proper filter and model to ensure
|
|
* the item type is matched.
|
|
*
|
|
* Returns: a new #GtkFilterListModel
|
|
**/
|
|
GtkFilterListModel *
|
|
gtk_filter_list_model_new_for_type (GType item_type)
|
|
{
|
|
g_return_val_if_fail (g_type_is_a (item_type, G_TYPE_OBJECT), NULL);
|
|
|
|
return g_object_new (GTK_TYPE_FILTER_LIST_MODEL,
|
|
"item-type", item_type,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_set_filter:
|
|
* @self: a #GtkFilterListModel
|
|
* @filter: (allow-none) (transfer none): filter to use or %NULL to not filter items
|
|
*
|
|
* Sets the filter used to filter items.
|
|
**/
|
|
void
|
|
gtk_filter_list_model_set_filter (GtkFilterListModel *self,
|
|
GtkFilter *filter)
|
|
{
|
|
g_return_if_fail (GTK_IS_FILTER_LIST_MODEL (self));
|
|
g_return_if_fail (filter == NULL || GTK_IS_FILTER (filter));
|
|
|
|
if (self->filter == filter)
|
|
return;
|
|
|
|
gtk_filter_list_model_clear_filter (self);
|
|
|
|
if (filter)
|
|
{
|
|
self->filter = g_object_ref (filter);
|
|
g_signal_connect (filter, "changed", G_CALLBACK (gtk_filter_list_model_filter_changed_cb), self);
|
|
gtk_filter_list_model_filter_changed_cb (filter, GTK_FILTER_CHANGE_DIFFERENT, self);
|
|
}
|
|
else
|
|
{
|
|
gtk_filter_list_model_update_strictness_and_refilter (self);
|
|
}
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_FILTER]);
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_get_filter:
|
|
* @self: a #GtkFilterListModel
|
|
*
|
|
* Gets the #GtkFilter currently set on @self.
|
|
*
|
|
* Returns: (nullable) (transfer none): The filter currently in use
|
|
* or %NULL if the list isn't filtered
|
|
**/
|
|
GtkFilter *
|
|
gtk_filter_list_model_get_filter (GtkFilterListModel *self)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_FILTER_LIST_MODEL (self), FALSE);
|
|
|
|
return self->filter;
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_set_model:
|
|
* @self: a #GtkFilterListModel
|
|
* @model: (allow-none): The model to be filtered
|
|
*
|
|
* Sets the model to be filtered.
|
|
*
|
|
* Note that GTK makes no effort to ensure that @model conforms to
|
|
* the item type of @self. It assumes that the caller knows what they
|
|
* are doing and have set up an appropriate filter to ensure that item
|
|
* types match.
|
|
**/
|
|
void
|
|
gtk_filter_list_model_set_model (GtkFilterListModel *self,
|
|
GListModel *model)
|
|
{
|
|
guint removed, added;
|
|
|
|
g_return_if_fail (GTK_IS_FILTER_LIST_MODEL (self));
|
|
g_return_if_fail (model == NULL || G_IS_LIST_MODEL (model));
|
|
/* Note: We don't check for matching item type here, we just assume the
|
|
* filter func takes care of filtering wrong items. */
|
|
|
|
if (self->model == model)
|
|
return;
|
|
|
|
removed = g_list_model_get_n_items (G_LIST_MODEL (self));
|
|
gtk_filter_list_model_clear_model (self);
|
|
|
|
if (model)
|
|
{
|
|
self->model = g_object_ref (model);
|
|
g_signal_connect (model, "items-changed", G_CALLBACK (gtk_filter_list_model_items_changed_cb), self);
|
|
if (removed == 0)
|
|
{
|
|
self->strictness = GTK_FILTER_MATCH_NONE;
|
|
gtk_filter_list_model_update_strictness_and_refilter (self);
|
|
added = 0;
|
|
}
|
|
else if (self->items)
|
|
added = gtk_filter_list_model_add_items (self, NULL, 0, g_list_model_get_n_items (model));
|
|
else
|
|
added = g_list_model_get_n_items (model);
|
|
}
|
|
else
|
|
{
|
|
self->strictness = GTK_FILTER_MATCH_NONE;
|
|
added = 0;
|
|
}
|
|
|
|
if (removed > 0 || added > 0)
|
|
g_list_model_items_changed (G_LIST_MODEL (self), 0, removed, added);
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
|
|
}
|
|
|
|
/**
|
|
* gtk_filter_list_model_get_model:
|
|
* @self: a #GtkFilterListModel
|
|
*
|
|
* Gets the model currently filtered or %NULL if none.
|
|
*
|
|
* Returns: (nullable) (transfer none): The model that gets filtered
|
|
**/
|
|
GListModel *
|
|
gtk_filter_list_model_get_model (GtkFilterListModel *self)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_FILTER_LIST_MODEL (self), NULL);
|
|
|
|
return self->model;
|
|
}
|
|
|
|
static void
|
|
gtk_filter_list_model_refilter (GtkFilterListModel *self)
|
|
{
|
|
FilterNode *node;
|
|
guint i, first_change, last_change;
|
|
guint n_is_visible, n_was_visible;
|
|
gboolean visible;
|
|
|
|
g_return_if_fail (GTK_IS_FILTER_LIST_MODEL (self));
|
|
|
|
if (self->items == NULL || self->model == NULL)
|
|
return;
|
|
|
|
first_change = G_MAXUINT;
|
|
last_change = 0;
|
|
n_is_visible = 0;
|
|
n_was_visible = 0;
|
|
for (i = 0, node = gtk_rb_tree_get_first (self->items);
|
|
node != NULL;
|
|
i++, node = gtk_rb_tree_node_get_next (node))
|
|
{
|
|
visible = gtk_filter_list_model_run_filter (self, i);
|
|
if (visible == node->visible)
|
|
{
|
|
if (visible)
|
|
{
|
|
n_is_visible++;
|
|
n_was_visible++;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
node->visible = visible;
|
|
gtk_rb_tree_node_mark_dirty (node);
|
|
first_change = MIN (n_is_visible, first_change);
|
|
if (visible)
|
|
n_is_visible++;
|
|
else
|
|
n_was_visible++;
|
|
last_change = MAX (n_is_visible, last_change);
|
|
}
|
|
|
|
if (first_change <= last_change)
|
|
{
|
|
g_list_model_items_changed (G_LIST_MODEL (self),
|
|
first_change,
|
|
last_change - first_change + n_was_visible - n_is_visible,
|
|
last_change - first_change);
|
|
}
|
|
}
|
|
|