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GtkMapListModel: add
This commit is contained in:
Benjamin Otte
parent
6d0fe46cba
commit
b6acc31d44
@ -45,6 +45,7 @@
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<title>GListModel support</title>
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<xi:include href="xml/gtkfilterlistmodel.xml" />
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<xi:include href="xml/gtkflattenlistmodel.xml" />
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<xi:include href="xml/gtkmaplistmodel.xml" />
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<xi:include href="xml/gtktreelistmodel.xml" />
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</chapter>
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@ -1744,6 +1744,27 @@ GtkLinkButtonPrivate
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gtk_link_button_get_type
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</SECTION>
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<SECTION>
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<FILE>gtkmaplistmodel</FILE>
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<TITLE>GtkMapListModel</TITLE>
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GtkMapListModel
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GtkMapListModelMapFunc
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gtk_map_list_model_new
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gtk_map_list_model_set_map_func
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gtk_map_list_model_set_model
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gtk_map_list_model_get_model
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gtk_map_list_model_has_map
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<SUBSECTION Standard>
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GTK_MAP_LIST_MODEL
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GTK_IS_MAP_LIST_MODEL
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GTK_TYPE_MAP_LIST_MODEL
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GTK_MAP_LIST_MODEL_CLASS
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GTK_IS_MAP_LIST_MODEL_CLASS
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GTK_MAP_LIST_MODEL_GET_CLASS
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<SUBSECTION Private>
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gtk_map_list_model_get_type
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</SECTION>
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<SECTION>
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<FILE>gtkmenu</FILE>
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<TITLE>GtkMenu</TITLE>
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@ -141,6 +141,7 @@
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#include <gtk/gtkliststore.h>
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#include <gtk/gtklockbutton.h>
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#include <gtk/gtkmain.h>
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#include <gtk/gtkmaplistmodel.h>
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#include <gtk/gtkmediacontrols.h>
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#include <gtk/gtkmediafile.h>
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#include <gtk/gtkmediastream.h>
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627
gtk/gtkmaplistmodel.c
Normal file
627
gtk/gtkmaplistmodel.c
Normal file
@ -0,0 +1,627 @@
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/*
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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 "config.h"
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#include "gtkmaplistmodel.h"
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#include "gtkcssrbtreeprivate.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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/**
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* SECTION:gtkmaplistmodel
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* @title: GtkMapListModel
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* @short_description: a #GListModel that maps items from a child list model to
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* a different item
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* @see_also: #GListModel
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*
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* #GtkMapListModel is a list model that takes a list model and maps the items
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* in that model to different items according to a #GtkMapListModelMapFunc.
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*
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* FIXME: Add useful examples here, like turning #GFile into #GFileInfo or #GdkPixmap.
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*
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* #GtkMapListModel will attempt to discard the mapped objects as soon as they are no
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* longer needed and recreate them if necessary.
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*/
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enum {
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PROP_0,
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PROP_HAS_MAP,
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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 _MapNode MapNode;
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typedef struct _MapAugment MapAugment;
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struct _MapNode
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{
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guint n_items;
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gpointer item; /* can only be set when n_items == 1 */
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};
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struct _MapAugment
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{
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guint n_items;
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};
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struct _GtkMapListModel
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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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GtkMapListModelMapFunc map_func;
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gpointer user_data;
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GDestroyNotify user_destroy;
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GtkCssRbTree *items; /* NULL if map_func == NULL */
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};
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struct _GtkMapListModelClass
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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 MapNode *
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gtk_map_list_model_get_nth (GtkCssRbTree *tree,
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guint position,
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guint *out_start_pos)
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{
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MapNode *node, *tmp;
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guint start_pos = position;
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node = gtk_css_rb_tree_get_root (tree);
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while (node)
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{
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tmp = gtk_css_rb_tree_get_left (tree, node);
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if (tmp)
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{
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MapAugment *aug = gtk_css_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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}
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if (position < node->n_items)
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{
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start_pos -= position;
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break;
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}
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position -= node->n_items;
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node = gtk_css_rb_tree_get_right (tree, node);
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}
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if (out_start_pos)
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*out_start_pos = start_pos;
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return node;
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}
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static GType
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gtk_map_list_model_get_item_type (GListModel *list)
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{
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GtkMapListModel *self = GTK_MAP_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_map_list_model_get_n_items (GListModel *list)
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{
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GtkMapListModel *self = GTK_MAP_LIST_MODEL (list);
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if (self->model == NULL)
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return 0;
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return g_list_model_get_n_items (self->model);
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}
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static gpointer
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gtk_map_list_model_get_item (GListModel *list,
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guint position)
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{
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GtkMapListModel *self = GTK_MAP_LIST_MODEL (list);
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MapNode *node;
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guint offset;
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if (self->model == NULL)
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return NULL;
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if (self->items == NULL)
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return g_list_model_get_item (self->model, position);
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node = gtk_map_list_model_get_nth (self->items, position, &offset);
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if (node == NULL)
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return NULL;
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if (node->item)
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return g_object_ref (node->item);
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if (offset != position)
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{
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MapNode *before = gtk_css_rb_tree_insert_before (self->items, node);
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before->n_items = position - offset;
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node->n_items -= before->n_items;
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gtk_css_rb_tree_mark_dirty (self->items, node);
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}
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if (node->n_items > 1)
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{
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MapNode *after = gtk_css_rb_tree_insert_after (self->items, node);
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after->n_items = node->n_items - 1;
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node->n_items = 1;
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gtk_css_rb_tree_mark_dirty (self->items, node);
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}
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node->item = self->map_func (g_list_model_get_item (self->model, position), self->user_data);
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g_object_add_weak_pointer (node->item, &node->item);
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return node->item;
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}
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static void
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gtk_map_list_model_model_init (GListModelInterface *iface)
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{
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iface->get_item_type = gtk_map_list_model_get_item_type;
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iface->get_n_items = gtk_map_list_model_get_n_items;
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iface->get_item = gtk_map_list_model_get_item;
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}
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G_DEFINE_TYPE_WITH_CODE (GtkMapListModel, gtk_map_list_model, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_map_list_model_model_init))
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static void
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gtk_map_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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GtkMapListModel *self)
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{
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MapNode *node;
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guint start, end;
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if (self->items == NULL)
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{
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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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}
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node = gtk_map_list_model_get_nth (self->items, position, &start);
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g_assert (start <= position);
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while (removed > 0)
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{
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end = start + node->n_items;
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if (start == position && end <= position + removed)
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{
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MapNode *next = gtk_css_rb_tree_get_next (self->items, node);
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removed -= node->n_items;
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gtk_css_rb_tree_remove (self->items, node);
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node = next;
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}
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else
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{
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if (end >= position + removed)
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{
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node->n_items -= removed;
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removed = 0;
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gtk_css_rb_tree_mark_dirty (self->items, node);
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}
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else if (start < position)
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{
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guint overlap = node->n_items - (position - start);
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node->n_items -= overlap;
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gtk_css_rb_tree_mark_dirty (self->items, node);
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removed -= overlap;
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start = position;
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node = gtk_css_rb_tree_get_next (self->items, node);
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}
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}
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}
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if (added)
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{
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if (node == NULL)
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node = gtk_css_rb_tree_insert_before (self->items, NULL);
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else if (node->item)
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node = gtk_css_rb_tree_insert_after (self->items, node);
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node->n_items += added;
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gtk_css_rb_tree_mark_dirty (self->items, node);
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}
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g_list_model_items_changed (G_LIST_MODEL (self), position, removed, added);
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}
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static void
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gtk_map_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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GtkMapListModel *self = GTK_MAP_LIST_MODEL (object);
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switch (prop_id)
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{
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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_map_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_map_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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GtkMapListModel *self = GTK_MAP_LIST_MODEL (object);
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switch (prop_id)
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{
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case PROP_HAS_MAP:
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g_value_set_boolean (value, self->items != NULL);
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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_map_list_model_clear_model (GtkMapListModel *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_map_list_model_items_changed_cb, self);
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g_clear_object (&self->model);
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}
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static void
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gtk_map_list_model_dispose (GObject *object)
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{
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GtkMapListModel *self = GTK_MAP_LIST_MODEL (object);
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gtk_map_list_model_clear_model (self);
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if (self->user_destroy)
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self->user_destroy (self->user_data);
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self->map_func = NULL;
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self->user_data = NULL;
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self->user_destroy = NULL;
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g_clear_pointer (&self->items, gtk_css_rb_tree_unref);
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G_OBJECT_CLASS (gtk_map_list_model_parent_class)->dispose (object);
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};
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static void
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gtk_map_list_model_class_init (GtkMapListModelClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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gobject_class->set_property = gtk_map_list_model_set_property;
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gobject_class->get_property = gtk_map_list_model_get_property;
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gobject_class->dispose = gtk_map_list_model_dispose;
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/**
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* GtkMapListModel:has-map:
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*
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* If a map is set for this model
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*/
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properties[PROP_HAS_MAP] =
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g_param_spec_boolean ("has-map",
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P_("has map"),
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P_("If a map is set for this model"),
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FALSE,
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GTK_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkMapListModel:item-type:
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*
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* The #GType for elements of this object
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*/
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properties[PROP_ITEM_TYPE] =
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g_param_spec_gtype ("item-type",
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P_("Item type"),
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P_("The type of elements of this object"),
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G_TYPE_OBJECT,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkMapListModel:model:
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*
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* The model being mapped
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*/
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properties[PROP_MODEL] =
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g_param_spec_object ("model",
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P_("Model"),
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P_("The model being mapped"),
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G_TYPE_LIST_MODEL,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
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g_object_class_install_properties (gobject_class, NUM_PROPERTIES, properties);
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}
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static void
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gtk_map_list_model_init (GtkMapListModel *self)
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{
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}
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static void
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gtk_map_list_model_augment (GtkCssRbTree *map,
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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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MapNode *node= _node;
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MapAugment *aug = _aug;
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aug->n_items = node->n_items;
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if (left)
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{
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MapAugment *left_aug = gtk_css_rb_tree_get_augment (map, left);
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aug->n_items += left_aug->n_items;
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}
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if (right)
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{
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MapAugment *right_aug = gtk_css_rb_tree_get_augment (map, right);
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aug->n_items += right_aug->n_items;
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}
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}
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/**
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* gtk_map_list_model_new:
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* @item_type: the #GType to use as the model's item type
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* @model: (allow-none): The model to map or %NULL for none
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* @map_func: (allow-none): map function or %NULL to not map items
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* @user_data: user data passed to @map_func
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* @destroy: destroy notifier for @user_data
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*
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* Creates a new #GtkMapListModel for the given arguments.
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*
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* Returns: a new #GtkMapListModel
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**/
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GtkMapListModel *
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gtk_map_list_model_new (GType item_type,
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GListModel *model,
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GtkMapListModelMapFunc map_func,
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gpointer data,
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GDestroyNotify data_destroy)
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{
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GtkMapListModel *result;
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g_return_val_if_fail (g_type_is_a (item_type, G_TYPE_OBJECT), NULL);
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g_return_val_if_fail (model == NULL || G_IS_LIST_MODEL (model), NULL);
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result = g_object_new (GTK_TYPE_MAP_LIST_MODEL,
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"item-type", item_type,
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"model", model,
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NULL);
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if (map_func)
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gtk_map_list_model_set_map_func (result, map_func, data, data_destroy);
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return result;
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}
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static void
|
||||
gtk_map_list_model_clear_node (gpointer _node)
|
||||
{
|
||||
MapNode *node = _node;
|
||||
|
||||
if (node->item)
|
||||
g_object_remove_weak_pointer (node->item, &node->item);
|
||||
}
|
||||
|
||||
static void
|
||||
gtk_map_list_model_init_items (GtkMapListModel *self)
|
||||
{
|
||||
if (self->map_func && self->model)
|
||||
{
|
||||
guint n_items;
|
||||
|
||||
if (self->items)
|
||||
{
|
||||
gtk_css_rb_tree_remove_all (self->items);
|
||||
}
|
||||
else
|
||||
{
|
||||
self->items = gtk_css_rb_tree_new (MapNode,
|
||||
MapAugment,
|
||||
gtk_map_list_model_augment,
|
||||
gtk_map_list_model_clear_node,
|
||||
NULL);
|
||||
}
|
||||
|
||||
n_items = g_list_model_get_n_items (self->model);
|
||||
if (n_items)
|
||||
{
|
||||
MapNode *node = gtk_css_rb_tree_insert_before (self->items, NULL);
|
||||
node->n_items = g_list_model_get_n_items (self->model);
|
||||
gtk_css_rb_tree_mark_dirty (self->items, node);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
g_clear_pointer (&self->items, gtk_css_rb_tree_unref);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* gtk_map_list_model_set_map_func:
|
||||
* @self: a #GtkMapListModel
|
||||
* @map_func: (allow-none): map function or %NULL to not map items
|
||||
* @user_data: user data passed to @map_func
|
||||
* @destroy: destroy notifier for @user_data
|
||||
*
|
||||
* Sets the function used to map items. The function will be called whenever
|
||||
* an item needs to be mapped and must return the item to use for the given
|
||||
* input item.
|
||||
*
|
||||
* Note that #GtkMapListModel may call this function multiple times on the
|
||||
* same item, because it may delete items it doesn't need anymore.
|
||||
*
|
||||
* GTK makes no effort to ensure that @map_func conforms to the item type
|
||||
* of @self. It assumes that the caller knows what they are doing and the map
|
||||
* function returns items of the appropriate type.
|
||||
**/
|
||||
void
|
||||
gtk_map_list_model_set_map_func (GtkMapListModel *self,
|
||||
GtkMapListModelMapFunc map_func,
|
||||
gpointer user_data,
|
||||
GDestroyNotify user_destroy)
|
||||
{
|
||||
gboolean was_maped, will_be_maped;
|
||||
guint n_items;
|
||||
|
||||
g_return_if_fail (GTK_IS_MAP_LIST_MODEL (self));
|
||||
g_return_if_fail (map_func != NULL || (user_data == NULL && !user_destroy));
|
||||
|
||||
was_maped = self->map_func != NULL;
|
||||
will_be_maped = map_func != NULL;
|
||||
|
||||
if (!was_maped && !will_be_maped)
|
||||
return;
|
||||
|
||||
if (self->user_destroy)
|
||||
self->user_destroy (self->user_data);
|
||||
|
||||
self->map_func = map_func;
|
||||
self->user_data = user_data;
|
||||
self->user_destroy = user_destroy;
|
||||
|
||||
gtk_map_list_model_init_items (self);
|
||||
|
||||
if (self->model)
|
||||
n_items = g_list_model_get_n_items (self->model);
|
||||
else
|
||||
n_items = 0;
|
||||
if (n_items)
|
||||
g_list_model_items_changed (G_LIST_MODEL (self), 0, n_items, n_items);
|
||||
|
||||
if (was_maped != will_be_maped)
|
||||
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_HAS_MAP]);
|
||||
}
|
||||
|
||||
/**
|
||||
* gtk_map_list_model_set_model:
|
||||
* @self: a #GtkMapListModel
|
||||
* @model: (allow-none): The model to be mapped
|
||||
*
|
||||
* Sets the model to be mapped.
|
||||
*
|
||||
* GTK makes no effort to ensure that @model conforms to the item type
|
||||
* expected by the map function. It assumes that the caller knows what
|
||||
* they are doing and have set up an appropriate map function.
|
||||
**/
|
||||
void
|
||||
gtk_map_list_model_set_model (GtkMapListModel *self,
|
||||
GListModel *model)
|
||||
{
|
||||
guint removed, added;
|
||||
|
||||
g_return_if_fail (GTK_IS_MAP_LIST_MODEL (self));
|
||||
g_return_if_fail (model == NULL || G_IS_LIST_MODEL (model));
|
||||
|
||||
if (self->model == model)
|
||||
return;
|
||||
|
||||
removed = g_list_model_get_n_items (G_LIST_MODEL (self));
|
||||
gtk_map_list_model_clear_model (self);
|
||||
|
||||
if (model)
|
||||
{
|
||||
self->model = g_object_ref (model);
|
||||
g_signal_connect (model, "items-changed", G_CALLBACK (gtk_map_list_model_items_changed_cb), self);
|
||||
added = g_list_model_get_n_items (model);
|
||||
}
|
||||
else
|
||||
{
|
||||
added = 0;
|
||||
}
|
||||
|
||||
gtk_map_list_model_init_items (self);
|
||||
|
||||
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_map_list_model_get_model:
|
||||
* @self: a #GtkMapListModel
|
||||
*
|
||||
* Gets the model that is curently being mapped or %NULL if none.
|
||||
*
|
||||
* Returns: (nullable) (transfer none): The model that gets mapped
|
||||
**/
|
||||
GListModel *
|
||||
gtk_map_list_model_get_model (GtkMapListModel *self)
|
||||
{
|
||||
g_return_val_if_fail (GTK_IS_MAP_LIST_MODEL (self), NULL);
|
||||
|
||||
return self->model;
|
||||
}
|
||||
|
||||
/**
|
||||
* gtk_map_list_model_has_map:
|
||||
* @self: a #GtkMapListModel
|
||||
*
|
||||
* Checks if a map function is currently set on @self
|
||||
*
|
||||
* Returns: %TRUE if a map function is set
|
||||
**/
|
||||
gboolean
|
||||
gtk_map_list_model_has_map (GtkMapListModel *self)
|
||||
{
|
||||
g_return_val_if_fail (GTK_IS_MAP_LIST_MODEL (self), FALSE);
|
||||
|
||||
return self->map_func != NULL;
|
||||
}
|
||||
72
gtk/gtkmaplistmodel.h
Normal file
72
gtk/gtkmaplistmodel.h
Normal file
@ -0,0 +1,72 @@
|
||||
/*
|
||||
* Copyright © 2018 Benjamin Otte
|
||||
*
|
||||
* This library 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 2.1 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Authors: Benjamin Otte <otte@gnome.org>
|
||||
*/
|
||||
|
||||
#ifndef __GTK_MAP_LIST_MODEL_H__
|
||||
#define __GTK_MAP_LIST_MODEL_H__
|
||||
|
||||
|
||||
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
|
||||
#error "Only <gtk/gtk.h> can be included directly."
|
||||
#endif
|
||||
|
||||
#include <gio/gio.h>
|
||||
#include <gtk/gtkwidget.h>
|
||||
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GTK_TYPE_MAP_LIST_MODEL (gtk_map_list_model_get_type ())
|
||||
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
G_DECLARE_FINAL_TYPE (GtkMapListModel, gtk_map_list_model, GTK, MAP_LIST_MODEL, GObject)
|
||||
|
||||
/**
|
||||
* GtkMapListModelMapFunc:
|
||||
* @item: (transfer full): The item to map
|
||||
* @data: user data
|
||||
*
|
||||
* User function that is called to map an @item of the original model.
|
||||
*
|
||||
* Returns: (transfer full): The item to map to. This function may not return %NULL
|
||||
*/
|
||||
typedef gpointer (* GtkMapListModelMapFunc) (gpointer item, gpointer data);
|
||||
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
GtkMapListModel * gtk_map_list_model_new (GType item_type,
|
||||
GListModel *model,
|
||||
GtkMapListModelMapFunc map_func,
|
||||
gpointer user_data,
|
||||
GDestroyNotify user_destroy);
|
||||
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
void gtk_map_list_model_set_map_func (GtkMapListModel *self,
|
||||
GtkMapListModelMapFunc map_func,
|
||||
gpointer user_data,
|
||||
GDestroyNotify user_destroy);
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
void gtk_map_list_model_set_model (GtkMapListModel *self,
|
||||
GListModel *model);
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
GListModel * gtk_map_list_model_get_model (GtkMapListModel *self);
|
||||
GDK_AVAILABLE_IN_ALL
|
||||
gboolean gtk_map_list_model_has_map (GtkMapListModel *self);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GTK_MAP_LIST_MODEL_H__ */
|
||||
@ -271,6 +271,7 @@ gtk_public_sources = files([
|
||||
'gtkliststore.c',
|
||||
'gtklockbutton.c',
|
||||
'gtkmain.c',
|
||||
'gtkmaplistmodel.c',
|
||||
'gtkmediacontrols.c',
|
||||
'gtkmediafile.c',
|
||||
'gtkmediastream.c',
|
||||
@ -514,6 +515,7 @@ gtk_public_headers = files([
|
||||
'gtkliststore.h',
|
||||
'gtklockbutton.h',
|
||||
'gtkmain.h',
|
||||
'gtkmaplistmodel.h',
|
||||
'gtkmediacontrols.h',
|
||||
'gtkmediafile.h',
|
||||
'gtkmediastream.h',
|
||||
|
||||
300
testsuite/gtk/maplistmodel.c
Normal file
300
testsuite/gtk/maplistmodel.c
Normal file
@ -0,0 +1,300 @@
|
||||
/* GtkRBTree tests.
|
||||
*
|
||||
* Copyright (C) 2011, Red Hat, Inc.
|
||||
* Authors: Benjamin Otte <otte@gnome.org>
|
||||
*
|
||||
* This library 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 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
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <locale.h>
|
||||
|
||||
#include <gtk/gtk.h>
|
||||
|
||||
static GQuark number_quark;
|
||||
static GQuark changes_quark;
|
||||
|
||||
static guint
|
||||
get (GListModel *model,
|
||||
guint position)
|
||||
{
|
||||
GObject *object = g_list_model_get_item (model, position);
|
||||
g_assert (object != NULL);
|
||||
return GPOINTER_TO_UINT (g_object_get_qdata (object, number_quark));
|
||||
}
|
||||
|
||||
static char *
|
||||
model_to_string (GListModel *model)
|
||||
{
|
||||
GString *string = g_string_new (NULL);
|
||||
guint i;
|
||||
|
||||
for (i = 0; i < g_list_model_get_n_items (model); i++)
|
||||
{
|
||||
if (i > 0)
|
||||
g_string_append (string, " ");
|
||||
g_string_append_printf (string, "%u", get (model, i));
|
||||
}
|
||||
|
||||
return g_string_free (string, FALSE);
|
||||
}
|
||||
|
||||
static GListStore *
|
||||
new_store (guint start,
|
||||
guint end,
|
||||
guint step);
|
||||
|
||||
#if 0
|
||||
static void
|
||||
splice (GListStore *store,
|
||||
guint pos,
|
||||
guint removed,
|
||||
guint *numbers,
|
||||
guint added)
|
||||
{
|
||||
GObject *objects[added];
|
||||
guint i;
|
||||
|
||||
for (i = 0; i < added; i++)
|
||||
{
|
||||
/* 0 cannot be differentiated from NULL, so don't use it */
|
||||
g_assert (numbers[i] != 0);
|
||||
objects[i] = g_object_new (G_TYPE_OBJECT, NULL);
|
||||
g_object_set_qdata (objects[i], number_quark, GUINT_TO_POINTER (numbers[i]));
|
||||
}
|
||||
|
||||
g_list_store_splice (store, pos, removed, (gpointer *) objects, added);
|
||||
|
||||
for (i = 0; i < added; i++)
|
||||
g_object_unref (objects[i]);
|
||||
}
|
||||
#endif
|
||||
|
||||
static void
|
||||
add (GListStore *store,
|
||||
guint number)
|
||||
{
|
||||
GObject *object;
|
||||
|
||||
/* 0 cannot be differentiated from NULL, so don't use it */
|
||||
g_assert (number != 0);
|
||||
|
||||
object = g_object_new (G_TYPE_OBJECT, NULL);
|
||||
g_object_set_qdata (object, number_quark, GUINT_TO_POINTER (number));
|
||||
g_list_store_append (store, object);
|
||||
g_object_unref (object);
|
||||
}
|
||||
|
||||
#define assert_model(model, expected) G_STMT_START{ \
|
||||
char *s = model_to_string (G_LIST_MODEL (model)); \
|
||||
if (!g_str_equal (s, expected)) \
|
||||
g_assertion_message_cmpstr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
|
||||
#model " == " #expected, s, "==", expected); \
|
||||
g_free (s); \
|
||||
}G_STMT_END
|
||||
|
||||
#define assert_changes(model, expected) G_STMT_START{ \
|
||||
GString *changes = g_object_get_qdata (G_OBJECT (model), changes_quark); \
|
||||
if (!g_str_equal (changes->str, expected)) \
|
||||
g_assertion_message_cmpstr (G_LOG_DOMAIN, __FILE__, __LINE__, G_STRFUNC, \
|
||||
#model " == " #expected, changes->str, "==", expected); \
|
||||
g_string_set_size (changes, 0); \
|
||||
}G_STMT_END
|
||||
|
||||
static GListStore *
|
||||
new_empty_store (void)
|
||||
{
|
||||
return g_list_store_new (G_TYPE_OBJECT);
|
||||
}
|
||||
|
||||
static GListStore *
|
||||
new_store (guint start,
|
||||
guint end,
|
||||
guint step)
|
||||
{
|
||||
GListStore *store = new_empty_store ();
|
||||
guint i;
|
||||
|
||||
for (i = start; i <= end; i += step)
|
||||
add (store, i);
|
||||
|
||||
return store;
|
||||
}
|
||||
|
||||
static void
|
||||
items_changed (GListModel *model,
|
||||
guint position,
|
||||
guint removed,
|
||||
guint added,
|
||||
GString *changes)
|
||||
{
|
||||
g_assert (removed != 0 || added != 0);
|
||||
|
||||
if (changes->len)
|
||||
g_string_append (changes, ", ");
|
||||
|
||||
if (removed == 1 && added == 0)
|
||||
{
|
||||
g_string_append_printf (changes, "-%u", position);
|
||||
}
|
||||
else if (removed == 0 && added == 1)
|
||||
{
|
||||
g_string_append_printf (changes, "+%u", position);
|
||||
}
|
||||
else
|
||||
{
|
||||
g_string_append_printf (changes, "%u", position);
|
||||
if (removed > 0)
|
||||
g_string_append_printf (changes, "-%u", removed);
|
||||
if (added > 0)
|
||||
g_string_append_printf (changes, "+%u", added);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
free_changes (gpointer data)
|
||||
{
|
||||
GString *changes = data;
|
||||
|
||||
/* all changes must have been checked via assert_changes() before */
|
||||
g_assert_cmpstr (changes->str, ==, "");
|
||||
|
||||
g_string_free (changes, TRUE);
|
||||
}
|
||||
|
||||
static gpointer
|
||||
map_multiply (gpointer item,
|
||||
gpointer factor)
|
||||
{
|
||||
GObject *object;
|
||||
guint num;
|
||||
|
||||
object = g_object_new (G_TYPE_OBJECT, NULL);
|
||||
num = GPOINTER_TO_UINT (g_object_get_qdata (item, number_quark));
|
||||
g_object_set_qdata (object, number_quark, GUINT_TO_POINTER (GPOINTER_TO_UINT (factor) * num));
|
||||
g_object_unref (item);
|
||||
|
||||
return object;
|
||||
}
|
||||
|
||||
static GtkMapListModel *
|
||||
new_model (GListStore *store)
|
||||
{
|
||||
GtkMapListModel *result;
|
||||
GString *changes;
|
||||
|
||||
result = gtk_map_list_model_new (G_TYPE_OBJECT, G_LIST_MODEL (store), map_multiply, GUINT_TO_POINTER (2), NULL);
|
||||
changes = g_string_new ("");
|
||||
g_object_set_qdata_full (G_OBJECT(result), changes_quark, changes, free_changes);
|
||||
g_signal_connect (result, "items-changed", G_CALLBACK (items_changed), changes);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static void
|
||||
test_create_empty (void)
|
||||
{
|
||||
GtkMapListModel *map;
|
||||
|
||||
map = new_model (NULL);
|
||||
assert_model (map, "");
|
||||
assert_changes (map, "");
|
||||
|
||||
g_object_unref (map);
|
||||
}
|
||||
|
||||
static void
|
||||
test_create (void)
|
||||
{
|
||||
GtkMapListModel *map;
|
||||
GListStore *store;
|
||||
|
||||
store = new_store (1, 5, 1);
|
||||
map = new_model (store);
|
||||
assert_model (map, "2 4 6 8 10");
|
||||
assert_changes (map, "");
|
||||
|
||||
g_object_unref (store);
|
||||
assert_model (map, "2 4 6 8 10");
|
||||
assert_changes (map, "");
|
||||
|
||||
g_object_unref (map);
|
||||
}
|
||||
|
||||
static void
|
||||
test_set_model (void)
|
||||
{
|
||||
GtkMapListModel *map;
|
||||
GListStore *store;
|
||||
|
||||
map = new_model (NULL);
|
||||
assert_model (map, "");
|
||||
assert_changes (map, "");
|
||||
|
||||
store = new_store (1, 5, 1);
|
||||
gtk_map_list_model_set_model (map, G_LIST_MODEL (store));
|
||||
assert_model (map, "2 4 6 8 10");
|
||||
assert_changes (map, "0+5");
|
||||
|
||||
gtk_map_list_model_set_model (map, NULL);
|
||||
assert_model (map, "");
|
||||
assert_changes (map, "0-5");
|
||||
|
||||
g_object_unref (store);
|
||||
g_object_unref (map);
|
||||
}
|
||||
|
||||
static void
|
||||
test_set_map_func (void)
|
||||
{
|
||||
GtkMapListModel *map;
|
||||
GListStore *store;
|
||||
|
||||
store = new_store (1, 5, 1);
|
||||
map = new_model (store);
|
||||
assert_model (map, "2 4 6 8 10");
|
||||
assert_changes (map, "");
|
||||
|
||||
gtk_map_list_model_set_map_func (map, map_multiply, GUINT_TO_POINTER (3), NULL);
|
||||
assert_model (map, "3 6 9 12 15");
|
||||
assert_changes (map, "0-5+5");
|
||||
|
||||
gtk_map_list_model_set_map_func (map, NULL, NULL, NULL);
|
||||
assert_model (map, "1 2 3 4 5");
|
||||
assert_changes (map, "0-5+5");
|
||||
|
||||
gtk_map_list_model_set_map_func (map, map_multiply, GUINT_TO_POINTER (2), NULL);
|
||||
assert_model (map, "2 4 6 8 10");
|
||||
assert_changes (map, "0-5+5");
|
||||
|
||||
g_object_unref (store);
|
||||
g_object_unref (map);
|
||||
}
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
g_test_init (&argc, &argv, NULL);
|
||||
setlocale (LC_ALL, "C");
|
||||
g_test_bug_base ("http://bugzilla.gnome.org/show_bug.cgi?id=%s");
|
||||
|
||||
number_quark = g_quark_from_static_string ("Hell and fire was spawned to be released.");
|
||||
changes_quark = g_quark_from_static_string ("What did I see? Can I believe what I saw?");
|
||||
|
||||
g_test_add_func ("/maplistmodel/create_empty", test_create_empty);
|
||||
g_test_add_func ("/maplistmodel/create", test_create);
|
||||
g_test_add_func ("/maplistmodel/set-model", test_set_model);
|
||||
g_test_add_func ("/maplistmodel/set-map-func", test_set_map_func);
|
||||
|
||||
return g_test_run ();
|
||||
}
|
||||
@ -31,6 +31,7 @@ tests = [
|
||||
['keyhash', ['../../gtk/gtkkeyhash.c', gtkresources, '../../gtk/gtkprivate.c'], gtk_cargs],
|
||||
['listbox'],
|
||||
['main'],
|
||||
['maplistmodel'],
|
||||
['notify'],
|
||||
['no-gtk-init'],
|
||||
['object'],
|
||||
|
||||
Loading…
Reference in New Issue
Block a user