forked from AuroraMiddleware/gtk
propertylookuplistmodel: Add
This model just takes an object and a property name and recursively looks it up. In particular, I want it for: widget, widget.parent, widget.parent.parent, ...
This commit is contained in:
Benjamin Otte
parent
05e752e096
commit
6d0fe46cba
480
gtk/gtkpropertylookuplistmodel.c
Normal file
480
gtk/gtkpropertylookuplistmodel.c
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@ -0,0 +1,480 @@
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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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/*
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* SECTION:gtkpropertylookuplistmodel
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* @Short_description: a List model for property lookups
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* @Title: GtkPropertyLookupListModel
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* @See_also: #GListModel
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*
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* #GtkPropertyLookupListModel is a #GListModel implementation that takes an
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* object and a property and then recursively looks up the next element using
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* the property on the previous object.
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*
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* For example, one could use this list model with the GtkWidget:parent property
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* to get a list of a widgets and all its ancestors.
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**/
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#include "config.h"
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#include "gtkpropertylookuplistmodelprivate.h"
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#include "gtkintl.h"
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#include "gtkprivate.h"
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enum {
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PROP_0,
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PROP_ITEM_TYPE,
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PROP_OBJECT,
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PROP_PROPERTY,
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NUM_PROPERTIES
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};
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struct _GtkPropertyLookupListModel
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{
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GObject parent_instance;
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GType item_type;
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char *property;
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GPtrArray *items; /* list of items - lazily expanded if there's a NULL sentinel */
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};
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struct _GtkPropertyLookupListModelClass
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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 GType
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gtk_property_lookup_list_model_get_item_type (GListModel *list)
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{
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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_LIST_MODEL (list);
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return self->item_type;
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}
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static gboolean
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gtk_property_lookup_list_model_is_infinite (GtkPropertyLookupListModel *self)
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{
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if (self->items->len == 0)
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return FALSE;
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return g_ptr_array_index (self->items, self->items->len - 1) == NULL;
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}
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static void
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gtk_property_lookup_list_model_notify_cb (GObject *object,
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GParamSpec *pspec,
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GtkPropertyLookupListModel *self);
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static guint
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gtk_property_lookup_list_model_clear (GtkPropertyLookupListModel *self,
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guint remaining)
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{
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guint i;
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for (i = remaining; i < self->items->len; i++)
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{
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gpointer object = g_ptr_array_index (self->items, i);
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if (object == NULL)
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break;
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g_signal_handlers_disconnect_by_func (object, gtk_property_lookup_list_model_notify_cb, self);
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g_object_unref (object);
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}
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/* keeps the sentinel, yay! */
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g_ptr_array_remove_range (self->items, remaining, i - remaining);
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return i - remaining;
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}
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static guint
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gtk_property_lookup_list_model_append (GtkPropertyLookupListModel *self,
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guint n_items)
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{
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gpointer last, next;
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guint i, start;
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g_assert (self->items->len > 0);
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g_assert (!gtk_property_lookup_list_model_is_infinite (self));
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last = g_ptr_array_index (self->items, self->items->len - 1);
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start = self->items->len;
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for (i = start; i < n_items; i++)
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{
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g_object_get (last, self->property, &next, NULL);
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if (next == NULL)
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return i - start;
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g_signal_connect_closure_by_id (next,
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g_signal_lookup ("notify", G_OBJECT_TYPE (next)),
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g_quark_from_static_string (self->property),
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g_cclosure_new (G_CALLBACK (gtk_property_lookup_list_model_notify_cb), G_OBJECT (self), NULL),
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FALSE);
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g_ptr_array_add (self->items, next);
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last = next;
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}
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return i - start;
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}
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static void
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gtk_property_lookup_list_model_ensure (GtkPropertyLookupListModel *self,
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guint n_items)
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{
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if (!gtk_property_lookup_list_model_is_infinite (self))
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return;
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if (self->items->len - 1 >= n_items)
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return;
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/* remove NULL sentinel */
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g_ptr_array_remove_index (self->items, self->items->len - 1);
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if (self->items->len == 0)
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return;
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if (gtk_property_lookup_list_model_append (self, n_items) == n_items)
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{
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/* readd NULL sentinel */
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g_ptr_array_add (self->items, NULL);
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}
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}
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static void
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gtk_property_lookup_list_model_notify_cb (GObject *object,
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GParamSpec *pspec,
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GtkPropertyLookupListModel *self)
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{
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guint position, removed, added;
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if (!g_ptr_array_find (self->items, object, &position))
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{
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/* can only happen if we forgot to disconnect a signal handler */
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g_assert_not_reached ();
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}
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/* we found the position of the item that notified, but the first change
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* is its child.
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*/
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position++;
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removed = gtk_property_lookup_list_model_clear (self, position);
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if (!gtk_property_lookup_list_model_is_infinite (self))
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added = gtk_property_lookup_list_model_append (self, G_MAXUINT);
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else
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added = 0;
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if (removed > 0 || added > 0)
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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 guint
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gtk_property_lookup_list_model_get_n_items (GListModel *list)
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{
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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_LIST_MODEL (list);
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gtk_property_lookup_list_model_ensure (self, G_MAXUINT);
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return self->items->len;
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}
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static gpointer
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gtk_property_lookup_list_model_get_item (GListModel *list,
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guint position)
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{
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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_LIST_MODEL (list);
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gtk_property_lookup_list_model_ensure (self, position + 1);
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if (position >= self->items->len)
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return NULL;
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return g_object_ref (g_ptr_array_index (self->items, position));
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}
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static void
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gtk_property_lookup_list_model_list_model_init (GListModelInterface *iface)
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{
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iface->get_item_type = gtk_property_lookup_list_model_get_item_type;
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iface->get_n_items = gtk_property_lookup_list_model_get_n_items;
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iface->get_item = gtk_property_lookup_list_model_get_item;
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}
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G_DEFINE_TYPE_WITH_CODE (GtkPropertyLookupListModel, gtk_property_lookup_list_model,
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G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, gtk_property_lookup_list_model_list_model_init))
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static gboolean
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check_pspec (GType type,
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GParamSpec *pspec)
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{
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if (pspec == NULL)
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return FALSE;
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if (!G_IS_PARAM_SPEC_OBJECT (pspec))
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return FALSE;
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if (!g_type_is_a (G_PARAM_SPEC (pspec)->value_type, type))
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return FALSE;
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return TRUE;
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}
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static gboolean
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lookup_pspec (GType type,
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const char *name)
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{
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gboolean result;
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if (g_type_is_a (type, G_TYPE_INTERFACE))
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{
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gpointer iface;
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GParamSpec *pspec;
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iface = g_type_default_interface_ref (type);
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pspec = g_object_interface_find_property (iface, name);
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result = check_pspec (type, pspec);
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g_type_default_interface_unref (iface);
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}
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else
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{
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GObjectClass *klass;
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GParamSpec *pspec;
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klass = g_type_class_ref (type);
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g_return_val_if_fail (klass != NULL, FALSE);
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pspec = g_object_class_find_property (klass, name);
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result = check_pspec (type, pspec);
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g_type_class_unref (klass);
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}
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return result;
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}
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static void
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gtk_property_lookup_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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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_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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g_return_if_fail (self->item_type != 0);
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break;
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case PROP_OBJECT:
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gtk_property_lookup_list_model_set_object (self, g_value_get_object (value));
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break;
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case PROP_PROPERTY:
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self->property = g_value_dup_string (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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if (self->property && self->item_type &&
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!lookup_pspec (self->item_type, self->property))
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{
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g_critical ("type %s has no property named \"%s\"", g_type_name (self->item_type), self->property);
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}
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}
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static void
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gtk_property_lookup_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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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_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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g_value_set_gtype (value, self->item_type);
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break;
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case PROP_OBJECT:
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g_value_set_object (value, gtk_property_lookup_list_model_get_object (self));
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break;
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case PROP_PROPERTY:
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g_value_set_object (value, self->property);
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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_property_lookup_list_model_dispose (GObject *object)
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{
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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_LIST_MODEL (object);
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gtk_property_lookup_list_model_clear (self, 0);
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G_OBJECT_CLASS (gtk_property_lookup_list_model_parent_class)->dispose (object);
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}
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static void
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gtk_property_lookup_list_model_finalize (GObject *object)
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{
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GtkPropertyLookupListModel *self = GTK_PROPERTY_LOOKUP_LIST_MODEL (object);
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g_ptr_array_unref (self->items);
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g_free (self->property);
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G_OBJECT_CLASS (gtk_property_lookup_list_model_parent_class)->finalize (object);
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}
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static void
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gtk_property_lookup_list_model_class_init (GtkPropertyLookupListModelClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = gtk_property_lookup_list_model_get_property;
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object_class->set_property = gtk_property_lookup_list_model_set_property;
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object_class->dispose = gtk_property_lookup_list_model_dispose;
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object_class->finalize = gtk_property_lookup_list_model_finalize;
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/**
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* GtkPropertyLookupListModel: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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* GtkPropertyLookupListModel:property:
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*
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* Name of the property used for lookups
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*/
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properties[PROP_PROPERTY] =
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g_param_spec_string ("property",
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P_("type"),
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P_("Name of the property used for lookups"),
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NULL,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY);
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/**
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* GtkPropertyLookupListModel:object:
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*
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* The root object
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*/
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properties[PROP_OBJECT] =
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g_param_spec_object ("object",
|
||||||
|
P_("Object"),
|
||||||
|
P_("The root object"),
|
||||||
|
G_TYPE_LIST_MODEL,
|
||||||
|
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
|
||||||
|
|
||||||
|
g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_property_lookup_list_model_init (GtkPropertyLookupListModel *self)
|
||||||
|
{
|
||||||
|
self->items = g_ptr_array_new ();
|
||||||
|
/* add sentinel */
|
||||||
|
g_ptr_array_add (self->items, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
GtkPropertyLookupListModel *
|
||||||
|
gtk_property_lookup_list_model_new (GType item_type,
|
||||||
|
const char *property_name)
|
||||||
|
{
|
||||||
|
g_return_val_if_fail (g_type_is_a (item_type, G_TYPE_OBJECT), NULL);
|
||||||
|
g_return_val_if_fail (property_name != NULL, NULL);
|
||||||
|
|
||||||
|
return g_object_new (GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL,
|
||||||
|
"item-type", item_type,
|
||||||
|
"property", property_name,
|
||||||
|
NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
gtk_property_lookup_list_model_set_object (GtkPropertyLookupListModel *self,
|
||||||
|
gpointer object)
|
||||||
|
{
|
||||||
|
guint removed, added;
|
||||||
|
|
||||||
|
g_return_if_fail (GTK_IS_PROPERTY_LOOKUP_LIST_MODEL (self));
|
||||||
|
|
||||||
|
if (object)
|
||||||
|
{
|
||||||
|
if (self->items->len != 0 &&
|
||||||
|
g_ptr_array_index (self->items, 0) == object)
|
||||||
|
return;
|
||||||
|
|
||||||
|
removed = gtk_property_lookup_list_model_clear (self, 0);
|
||||||
|
|
||||||
|
g_ptr_array_insert (self->items, 0, g_object_ref (object));
|
||||||
|
g_signal_connect_closure_by_id (object,
|
||||||
|
g_signal_lookup ("notify", G_OBJECT_TYPE (object)),
|
||||||
|
g_quark_from_static_string (self->property),
|
||||||
|
g_cclosure_new (G_CALLBACK (gtk_property_lookup_list_model_notify_cb), G_OBJECT (self), NULL),
|
||||||
|
FALSE);
|
||||||
|
added = 1;
|
||||||
|
if (!gtk_property_lookup_list_model_is_infinite (self))
|
||||||
|
added += gtk_property_lookup_list_model_append (self, G_MAXUINT);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if (self->items->len == 0 ||
|
||||||
|
g_ptr_array_index (self->items, 0) == NULL)
|
||||||
|
return;
|
||||||
|
|
||||||
|
removed = gtk_property_lookup_list_model_clear (self, 0);
|
||||||
|
added = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
g_assert (removed != 0 || added != 0);
|
||||||
|
|
||||||
|
g_list_model_items_changed (G_LIST_MODEL (self), 0, removed, added);
|
||||||
|
}
|
||||||
|
|
||||||
|
gpointer
|
||||||
|
gtk_property_lookup_list_model_get_object (GtkPropertyLookupListModel *self)
|
||||||
|
{
|
||||||
|
g_return_val_if_fail (GTK_IS_PROPERTY_LOOKUP_LIST_MODEL (self), NULL);
|
||||||
|
|
||||||
|
if (self->items->len == 0)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
return g_ptr_array_index (self->items, 0);
|
||||||
|
}
|
||||||
|
|
||||||
50
gtk/gtkpropertylookuplistmodelprivate.h
Normal file
50
gtk/gtkpropertylookuplistmodelprivate.h
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
/*
|
||||||
|
* 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_PROPERTY_LOOKUP_LIST_MODEL_H__
|
||||||
|
#define __GTK_PROPERTY_LOOKUP_LIST_MODEL_H__
|
||||||
|
|
||||||
|
#include <gio/gio.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL (gtk_property_lookup_list_model_get_type ())
|
||||||
|
#define GTK_PROPERTY_LOOKUP_LIST_MODEL(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL, GtkPropertyLookupListModel))
|
||||||
|
#define GTK_PROPERTY_LOOKUP_LIST_MODEL_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL, GtkPropertyLookupListModelClass))
|
||||||
|
#define GTK_IS_PROPERTY_LOOKUP_LIST_MODEL(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL))
|
||||||
|
#define GTK_IS_PROPERTY_LOOKUP_LIST_MODEL_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL))
|
||||||
|
#define GTK_PROPERTY_LOOKUP_LIST_MODEL_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GTK_TYPE_PROPERTY_LOOKUP_LIST_MODEL, GtkPropertyLookupListModelClass))
|
||||||
|
|
||||||
|
typedef struct _GtkPropertyLookupListModel GtkPropertyLookupListModel;
|
||||||
|
typedef struct _GtkPropertyLookupListModelClass GtkPropertyLookupListModelClass;
|
||||||
|
|
||||||
|
GType gtk_property_lookup_list_model_get_type (void) G_GNUC_CONST;
|
||||||
|
|
||||||
|
GtkPropertyLookupListModel * gtk_property_lookup_list_model_new (GType item_type,
|
||||||
|
const char *property_name);
|
||||||
|
|
||||||
|
void gtk_property_lookup_list_model_set_object (GtkPropertyLookupListModel *self,
|
||||||
|
gpointer object);
|
||||||
|
gpointer gtk_property_lookup_list_model_get_object (GtkPropertyLookupListModel *self);
|
||||||
|
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GTK_PROPERTY_LOOKUP_LIST_MODEL_H__ */
|
||||||
@ -302,6 +302,7 @@ gtk_public_sources = files([
|
|||||||
'gtkprintoperationpreview.c',
|
'gtkprintoperationpreview.c',
|
||||||
'gtkprintsettings.c',
|
'gtkprintsettings.c',
|
||||||
'gtkprogressbar.c',
|
'gtkprogressbar.c',
|
||||||
|
'gtkpropertylookuplistmodel.c',
|
||||||
'gtkradiobutton.c',
|
'gtkradiobutton.c',
|
||||||
'gtkradiomenuitem.c',
|
'gtkradiomenuitem.c',
|
||||||
'gtkradiotoolbutton.c',
|
'gtkradiotoolbutton.c',
|
||||||
|
|||||||
@ -36,6 +36,7 @@ tests = [
|
|||||||
['object'],
|
['object'],
|
||||||
['objects-finalize'],
|
['objects-finalize'],
|
||||||
['papersize'],
|
['papersize'],
|
||||||
|
['propertylookuplistmodel', ['../../gtk/gtkpropertylookuplistmodel.c'], ['-DGTK_COMPILATION', '-UG_ENABLE_DEBUG']],
|
||||||
['rbtree', ['../../gtk/gtkrbtree.c'], ['-DGTK_COMPILATION', '-UG_ENABLE_DEBUG']],
|
['rbtree', ['../../gtk/gtkrbtree.c'], ['-DGTK_COMPILATION', '-UG_ENABLE_DEBUG']],
|
||||||
['recentmanager'],
|
['recentmanager'],
|
||||||
['regression-tests'],
|
['regression-tests'],
|
||||||
|
|||||||
242
testsuite/gtk/propertylookuplistmodel.c
Normal file
242
testsuite/gtk/propertylookuplistmodel.c
Normal file
@ -0,0 +1,242 @@
|
|||||||
|
/* 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>
|
||||||
|
|
||||||
|
#include "gtk/gtkpropertylookuplistmodelprivate.h"
|
||||||
|
|
||||||
|
GQuark changes_quark;
|
||||||
|
|
||||||
|
static char *
|
||||||
|
model_to_string (GListModel *model)
|
||||||
|
{
|
||||||
|
GString *string = g_string_new (NULL);
|
||||||
|
gpointer item;
|
||||||
|
guint i;
|
||||||
|
|
||||||
|
for (i = 0; i < g_list_model_get_n_items (model); i++)
|
||||||
|
{
|
||||||
|
if (i > 0)
|
||||||
|
g_string_append (string, " ");
|
||||||
|
item = g_list_model_get_item (model, i);
|
||||||
|
g_string_append_printf (string, "%s", G_OBJECT_TYPE_NAME (item));
|
||||||
|
g_object_unref (item);
|
||||||
|
}
|
||||||
|
|
||||||
|
return g_string_free (string, FALSE);
|
||||||
|
}
|
||||||
|
|
||||||
|
#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 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 GSList *widgets = NULL;
|
||||||
|
|
||||||
|
static GtkWidget *
|
||||||
|
create_widget_tree (void)
|
||||||
|
{
|
||||||
|
GtkWidget *window, *box, *grid, *label;
|
||||||
|
|
||||||
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
||||||
|
widgets = g_slist_prepend (widgets, window);
|
||||||
|
|
||||||
|
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
|
||||||
|
gtk_container_add (GTK_CONTAINER (window), box);
|
||||||
|
|
||||||
|
grid = gtk_grid_new ();
|
||||||
|
gtk_container_add (GTK_CONTAINER (box), grid);
|
||||||
|
|
||||||
|
label = gtk_label_new ("Hello World");
|
||||||
|
gtk_container_add (GTK_CONTAINER (grid), label);
|
||||||
|
|
||||||
|
return label;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
destroy_widgets (void)
|
||||||
|
{
|
||||||
|
g_slist_free_full (widgets, (GDestroyNotify) gtk_widget_destroy);
|
||||||
|
widgets = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
static GtkPropertyLookupListModel *
|
||||||
|
new_model (gboolean fill)
|
||||||
|
{
|
||||||
|
GtkPropertyLookupListModel *result;
|
||||||
|
GString *changes;
|
||||||
|
|
||||||
|
result = gtk_property_lookup_list_model_new (GTK_TYPE_WIDGET, "parent");
|
||||||
|
if (fill)
|
||||||
|
{
|
||||||
|
GtkWidget *widget = create_widget_tree ();
|
||||||
|
gtk_property_lookup_list_model_set_object (result, widget);
|
||||||
|
}
|
||||||
|
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)
|
||||||
|
{
|
||||||
|
GtkPropertyLookupListModel *model;
|
||||||
|
|
||||||
|
model = new_model (FALSE);
|
||||||
|
assert_model (model, "");
|
||||||
|
assert_changes (model, "");
|
||||||
|
|
||||||
|
g_object_unref (model);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
test_create (void)
|
||||||
|
{
|
||||||
|
GtkPropertyLookupListModel *model;
|
||||||
|
|
||||||
|
model = new_model (TRUE);
|
||||||
|
assert_model (model, "GtkLabel GtkGrid GtkBox GtkWindow");
|
||||||
|
assert_changes (model, "");
|
||||||
|
|
||||||
|
g_object_unref (model);
|
||||||
|
destroy_widgets ();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
test_set_object (void)
|
||||||
|
{
|
||||||
|
GtkPropertyLookupListModel *model;
|
||||||
|
GtkWidget *widget;
|
||||||
|
|
||||||
|
widget = create_widget_tree ();
|
||||||
|
|
||||||
|
model = new_model (FALSE);
|
||||||
|
gtk_property_lookup_list_model_set_object (model, widget);
|
||||||
|
assert_model (model, "GtkLabel GtkGrid GtkBox GtkWindow");
|
||||||
|
assert_changes (model, "+0");
|
||||||
|
g_object_unref (model);
|
||||||
|
|
||||||
|
model = new_model (FALSE);
|
||||||
|
assert_model (model, "");
|
||||||
|
gtk_property_lookup_list_model_set_object (model, widget);
|
||||||
|
assert_model (model, "GtkLabel GtkGrid GtkBox GtkWindow");
|
||||||
|
assert_changes (model, "0+4");
|
||||||
|
g_object_unref (model);
|
||||||
|
|
||||||
|
destroy_widgets ();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
test_change_property (void)
|
||||||
|
{
|
||||||
|
GtkPropertyLookupListModel *model;
|
||||||
|
GtkWidget *widget, *parent, *grandparent;
|
||||||
|
|
||||||
|
widget = create_widget_tree ();
|
||||||
|
parent = gtk_widget_get_parent (widget);
|
||||||
|
grandparent = gtk_widget_get_parent (parent);
|
||||||
|
|
||||||
|
model = new_model (FALSE);
|
||||||
|
assert_model (model, ""); /* make sure the model has a definite size */
|
||||||
|
gtk_property_lookup_list_model_set_object (model, widget);
|
||||||
|
assert_model (model, "GtkLabel GtkGrid GtkBox GtkWindow");
|
||||||
|
assert_changes (model, "0+4");
|
||||||
|
|
||||||
|
gtk_container_remove (GTK_CONTAINER (parent), widget);
|
||||||
|
assert_model (model, "GtkLabel");
|
||||||
|
assert_changes (model, "1-3");
|
||||||
|
|
||||||
|
gtk_container_add (GTK_CONTAINER (grandparent), widget);
|
||||||
|
assert_model (model, "GtkLabel GtkBox GtkWindow");
|
||||||
|
assert_changes (model, "1+2");
|
||||||
|
|
||||||
|
g_object_unref (model);
|
||||||
|
destroy_widgets ();
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[])
|
||||||
|
{
|
||||||
|
gtk_test_init (&argc, &argv);
|
||||||
|
|
||||||
|
changes_quark = g_quark_from_static_string ("What did I see? Can I believe what I saw?");
|
||||||
|
|
||||||
|
g_test_add_func ("/propertylookuplistmodel/create_empty", test_create_empty);
|
||||||
|
g_test_add_func ("/propertylookuplistmodel/create", test_create);
|
||||||
|
g_test_add_func ("/propertylookuplistmodel/set-object", test_set_object);
|
||||||
|
g_test_add_func ("/propertylookuplistmodel/change-property", test_change_property);
|
||||||
|
|
||||||
|
return g_test_run ();
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user