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Merge branch 'stringlist' into 'master'

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add a public stringlist api

See merge request GNOME/gtk!2134
This commit is contained in:
Matthias Clasen 2020-06-23 20:43:49 +00:00
commit 2cfeb1048c
11 changed files with 1000 additions and 346 deletions
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3
docs/reference/gtk/gtk4-docs.xml
View File

@ -74,8 +74,9 @@
<xi:include href="xml/gtkmultiselection.xml" />
<xi:include href="xml/gtkpropertyselection.xml" />
</section>
<xi:include href="xml/gtkdirectorylist.xml" />
<xi:include href="xml/gtkbookmarklist.xml" />
<xi:include href="xml/gtkdirectorylist.xml" />
<xi:include href="xml/gtkstringlist.xml" />
</chapter>
<chapter id="ListContainers">

14
docs/reference/gtk/gtk4-sections.txt
View File

@ -7554,3 +7554,17 @@ GTK_TYPE_DROP_DOWN
<SUBSECTION Private>
gtk_drop_down_get_type
</SECTION>
<SECTION>
<FILE>gtkstringlist</FILE>
<TITLE>GtkStringList</TITLE>
GtkStringList
gtk_string_list_new
gtk_string_list_append
gtk_string_list_take
gtk_string_list_remove
gtk_string_list_splice
gtk_string_list_get_string
GtkStringObject
gtk_string_object_get_string
</SECTION>

2
docs/reference/gtk/gtk4.types.in
View File

@ -210,6 +210,8 @@ gtk_stack_sidebar_get_type
gtk_stack_switcher_get_type
gtk_statusbar_get_type
gtk_string_filter_get_type
gtk_string_list_get_type
gtk_string_object_get_type
gtk_string_sorter_get_type
gtk_switch_get_type
gtk_level_bar_get_type

1
gtk/gtk.h
View File

@ -243,6 +243,7 @@
#include <gtk/gtkstackswitcher.h>
#include <gtk/gtkstatusbar.h>
#include <gtk/gtkstringfilter.h>
#include <gtk/gtkstringlist.h>
#include <gtk/gtkstringsorter.h>
#include <gtk/gtkstylecontext.h>
#include <gtk/gtkstyleprovider.h>

350
gtk/gtkdropdown.c
View File

@ -44,6 +44,7 @@
#include "gtklistitem.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkstringlist.h"
/**
* SECTION:gtkdropdown
@ -69,26 +70,6 @@
* useful if the list of options is long. To enable the search entry,
* use gtk_drop_down_set_enable_search().
*
* # GtkDropDown as GtkBuildable
*
* The GtkDropDown implementation of the GtkBuildable interface supports
* adding items directly using the <items> element and specifying <item>
* elements for each item. Using <items> is equivalent to calling
* gtk_drop_down_set_from_strings(). Each <item> element supports
* the regular translation attributes “translatable”, “context”
* and “comments”.
*
* Here is a UI definition fragment specifying GtkDropDown items:
* |[
* <object class="GtkDropDown">
* <items>
* <item translatable="yes">Factory</item>
* <item translatable="yes">Home</item>
* <item translatable="yes">Subway</item>
* </items>
* </object>
* ]|
*
* * # CSS nodes
*
* GtkDropDown has a single CSS node with name dropdown,
@ -138,13 +119,7 @@ enum
N_PROPS
};
static void gtk_drop_down_buildable_interface_init (GtkBuildableIface *iface);
static GtkBuildableIface *buildable_parent_iface = NULL;
G_DEFINE_TYPE_WITH_CODE (GtkDropDown, gtk_drop_down, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_drop_down_buildable_interface_init))
G_DEFINE_TYPE (GtkDropDown, gtk_drop_down, GTK_TYPE_WIDGET)
static GParamSpec *properties[N_PROPS] = { NULL, };
@ -577,20 +552,26 @@ bind_item (GtkSignalListItemFactory *factory,
GtkWidget *label;
GValue value = G_VALUE_INIT;
if (self->expression == NULL)
{
g_critical ("Either GtkDropDown::factory or GtkDropDown::expression must be set");
return;
}
item = gtk_list_item_get_item (list_item);
label = gtk_list_item_get_child (list_item);
if (gtk_expression_evaluate (self->expression, item, &value))
if (self->expression &&
gtk_expression_evaluate (self->expression, item, &value))
{
gtk_label_set_label (GTK_LABEL (label), g_value_get_string (&value));
g_value_unset (&value);
}
else if (GTK_IS_STRING_OBJECT (item))
{
const char *string;
string = gtk_string_object_get_string (GTK_STRING_OBJECT (item));
gtk_label_set_label (GTK_LABEL (label), string);
}
else
{
g_critical ("Either GtkDropDown:factory or GtkDropDown:expression must be set");
}
}
static void
@ -943,118 +924,6 @@ gtk_drop_down_get_expression (GtkDropDown *self)
return self->expression;
}
#define GTK_TYPE_DROP_DOWN_STRING_HOLDER (gtk_drop_down_string_holder_get_type ())
G_DECLARE_FINAL_TYPE (GtkDropDownStringHolder, gtk_drop_down_string_holder, GTK, DROP_DOWN_STRING_HOLDER, GObject)
struct _GtkDropDownStringHolder {
GObject parent_instance;
char *string;
};
enum {
PROP_STRING = 1,
PROP_NUM_PROPERTIES
};
G_DEFINE_TYPE (GtkDropDownStringHolder, gtk_drop_down_string_holder, G_TYPE_OBJECT);
static void
gtk_drop_down_string_holder_init (GtkDropDownStringHolder *holder)
{
}
static void
gtk_drop_down_string_holder_finalize (GObject *object)
{
GtkDropDownStringHolder *holder = GTK_DROP_DOWN_STRING_HOLDER (object);
g_free (holder->string);
G_OBJECT_CLASS (gtk_drop_down_string_holder_parent_class)->finalize (object);
}
static void
gtk_drop_down_string_holder_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkDropDownStringHolder *holder = GTK_DROP_DOWN_STRING_HOLDER (object);
switch (property_id)
{
case PROP_STRING:
g_free (holder->string);
holder->string = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_drop_down_string_holder_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkDropDownStringHolder *holder = GTK_DROP_DOWN_STRING_HOLDER (object);
switch (property_id)
{
case PROP_STRING:
g_value_set_string (value, holder->string);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_drop_down_string_holder_class_init (GtkDropDownStringHolderClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GParamSpec *pspec;
object_class->finalize = gtk_drop_down_string_holder_finalize;
object_class->set_property = gtk_drop_down_string_holder_set_property;
object_class->get_property = gtk_drop_down_string_holder_get_property;
pspec = g_param_spec_string ("string", "String", "String",
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
g_object_class_install_property (object_class, PROP_STRING, pspec);
}
static GtkDropDownStringHolder *
gtk_drop_down_string_holder_new (const char *string)
{
return g_object_new (GTK_TYPE_DROP_DOWN_STRING_HOLDER, "string", string, NULL);
}
static GListModel *
gtk_drop_down_strings_model_new (const char *const *text)
{
GListStore *store;
int i;
store = g_list_store_new (GTK_TYPE_DROP_DOWN_STRING_HOLDER);
for (i = 0; text[i]; i++)
{
GtkDropDownStringHolder *holder = gtk_drop_down_string_holder_new (text[i]);
g_list_store_append (store, holder);
g_object_unref (holder);
}
return G_LIST_MODEL (store);
}
/**
* gtk_drop_down_set_from_strings:
* @self: a #GtkDropDown
@ -1067,7 +936,6 @@ void
gtk_drop_down_set_from_strings (GtkDropDown *self,
const char *const *texts)
{
GtkExpression *expression;
GListModel *model;
g_return_if_fail (GTK_IS_DROP_DOWN (self));
@ -1075,193 +943,7 @@ gtk_drop_down_set_from_strings (GtkDropDown *self,
set_default_factory (self);
expression = gtk_property_expression_new (GTK_TYPE_DROP_DOWN_STRING_HOLDER, NULL, "string");
gtk_drop_down_set_expression (self, expression);
gtk_expression_unref (expression);
model = gtk_drop_down_strings_model_new (texts);
model = G_LIST_MODEL (gtk_string_list_new ((const char **)texts));
gtk_drop_down_set_model (self, model);
g_object_unref (model);
}
typedef struct {
GtkBuilder *builder;
GObject *object;
const gchar *domain;
gchar *context;
guint translatable : 1;
guint is_text : 1;
GString *string;
GPtrArray *strings;
} ItemParserData;
static void
item_start_element (GtkBuildableParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
if (strcmp (element_name, "items") == 0)
{
if (!_gtk_builder_check_parent (data->builder, context, "object", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_INVALID, NULL, NULL,
G_MARKUP_COLLECT_INVALID))
_gtk_builder_prefix_error (data->builder, context, error);
}
else if (strcmp (element_name, "item") == 0)
{
gboolean translatable = FALSE;
const gchar *msg_context = NULL;
if (!_gtk_builder_check_parent (data->builder, context, "items", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_BOOLEAN|G_MARKUP_COLLECT_OPTIONAL, "translatable", &translatable,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "comments", NULL,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "context", &msg_context,
G_MARKUP_COLLECT_INVALID))
{
_gtk_builder_prefix_error (data->builder, context, error);
return;
}
data->is_text = TRUE;
data->translatable = translatable;
data->context = g_strdup (msg_context);
}
else
{
_gtk_builder_error_unhandled_tag (data->builder, context,
"GtkDropDown", element_name,
error);
}
}
static void
item_text (GtkBuildableParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
if (data->is_text)
g_string_append_len (data->string, text, text_len);
}
static void
item_end_element (GtkBuildableParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
/* Append the translated strings */
if (data->string->len)
{
if (data->translatable)
{
const gchar *translated;
translated = _gtk_builder_parser_translate (data->domain,
data->context,
data->string->str);
g_string_assign (data->string, translated);
}
g_ptr_array_add (data->strings, g_strdup (data->string->str));
}
data->translatable = FALSE;
g_string_set_size (data->string, 0);
g_clear_pointer (&data->context, g_free);
data->is_text = FALSE;
}
static const GtkBuildableParser item_parser =
{
item_start_element,
item_end_element,
item_text
};
static gboolean
gtk_drop_down_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GtkBuildableParser *parser,
gpointer *parser_data)
{
if (buildable_parent_iface->custom_tag_start (buildable, builder, child,
tagname, parser, parser_data))
return TRUE;
if (strcmp (tagname, "items") == 0)
{
ItemParserData *data;
data = g_slice_new0 (ItemParserData);
data->builder = g_object_ref (builder);
data->object = g_object_ref (G_OBJECT (buildable));
data->domain = gtk_builder_get_translation_domain (builder);
data->string = g_string_new ("");
data->strings = g_ptr_array_new_with_free_func (g_free);
*parser = item_parser;
*parser_data = data;
return TRUE;
}
return FALSE;
}
static void
gtk_drop_down_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data)
{
ItemParserData *data;
buildable_parent_iface->custom_finished (buildable, builder, child,
tagname, user_data);
if (strcmp (tagname, "items") == 0)
{
data = (ItemParserData*)user_data;
g_ptr_array_add (data->strings, NULL);
gtk_drop_down_set_from_strings (GTK_DROP_DOWN (data->object), (const char **)data->strings->pdata);
g_object_unref (data->object);
g_object_unref (data->builder);
g_string_free (data->string, TRUE);
g_ptr_array_unref (data->strings);
g_slice_free (ItemParserData, data);
}
}
static void
gtk_drop_down_buildable_interface_init (GtkBuildableIface *iface)
{
buildable_parent_iface = g_type_interface_peek_parent (iface);
iface->custom_tag_start = gtk_drop_down_buildable_custom_tag_start;
iface->custom_finished = gtk_drop_down_buildable_custom_finished;
}

620
gtk/gtkstringlist.c Normal file
View File

@ -0,0 +1,620 @@
/*
* Copyright © 2020 Red Hat, Inc.
*
* 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: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include "gtkstringlist.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkintl.h"
#include "gtkprivate.h"
/**
* SECTION:gtkstringlist
* @title: GtkStringList
* @short_description: A list model for strings
* @see_also: #GListModel
*
* #GtkStringList is a list model that wraps an array of strings.
*
* The objects in the model have a "string" property.
*
* # GtkStringList as GtkBuildable
*
* The GtkStringList implementation of the GtkBuildable interface
* supports adding items directly using the <items> element and
* specifying <item> elements for each item. Each <item> element
* supports the regular translation attributes “translatable”,
* “context” and “comments”.
*
* Here is a UI definition fragment specifying a GtkStringList
* |[
* <object class="GtkStringList">
* <items>
* <item translatable="yes">Factory</item>
* <item translatable="yes">Home</item>
* <item translatable="yes">Subway</item>
* </items>
* </object>
* ]|
*/
struct _GtkStringObject
{
GObject parent_instance;
char *string;
};
enum {
PROP_STRING = 1,
PROP_NUM_PROPERTIES
};
G_DEFINE_TYPE (GtkStringObject, gtk_string_object, G_TYPE_OBJECT);
static void
gtk_string_object_init (GtkStringObject *object)
{
}
static void
gtk_string_object_finalize (GObject *object)
{
GtkStringObject *self = GTK_STRING_OBJECT (object);
g_free (self->string);
G_OBJECT_CLASS (gtk_string_object_parent_class)->finalize (object);
}
static void
gtk_string_object_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkStringObject *self = GTK_STRING_OBJECT (object);
switch (property_id)
{
case PROP_STRING:
g_free (self->string);
self->string = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_string_object_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkStringObject *self = GTK_STRING_OBJECT (object);
switch (property_id)
{
case PROP_STRING:
g_value_set_string (value, self->string);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_string_object_class_init (GtkStringObjectClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GParamSpec *pspec;
object_class->finalize = gtk_string_object_finalize;
object_class->set_property = gtk_string_object_set_property;
object_class->get_property = gtk_string_object_get_property;
pspec = g_param_spec_string ("string", "String", "String",
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_property (object_class, PROP_STRING, pspec);
}
static GtkStringObject *
gtk_string_object_new (const char *string)
{
return g_object_new (GTK_TYPE_STRING_OBJECT, "string", string, NULL);
}
static GtkStringObject *
gtk_string_object_new_take (char *string)
{
GtkStringObject *obj;
obj = g_object_new (GTK_TYPE_STRING_OBJECT, NULL);
obj->string = string;
return obj;
}
/**
* gtk_string_object_get_string:
* @self: a #GtkStringObject
*
* Returns the string contained in a #GtkStringObject.
*
* Returns: the string of @self
*/
const char *
gtk_string_object_get_string (GtkStringObject *self)
{
g_return_val_if_fail (GTK_IS_STRING_OBJECT (self), NULL);
return self->string;
}
struct _GtkStringList
{
GObject parent_instance;
GSequence *items;
};
struct _GtkStringListClass
{
GObjectClass parent_class;
};
static GType
gtk_string_list_get_item_type (GListModel *list)
{
return G_TYPE_OBJECT;
}
static guint
gtk_string_list_get_n_items (GListModel *list)
{
GtkStringList *self = GTK_STRING_LIST (list);
return g_sequence_get_length (self->items);
}
static gpointer
gtk_string_list_get_item (GListModel *list,
guint position)
{
GtkStringList *self = GTK_STRING_LIST (list);
GSequenceIter *iter;
iter = g_sequence_get_iter_at_pos (self->items, position);
if (g_sequence_iter_is_end (iter))
return NULL;
else
return g_object_ref (g_sequence_get (iter));
}
static void
gtk_string_list_model_init (GListModelInterface *iface)
{
iface->get_item_type = gtk_string_list_get_item_type;
iface->get_n_items = gtk_string_list_get_n_items;
iface->get_item = gtk_string_list_get_item;
}
typedef struct
{
GtkBuilder *builder;
GtkStringList *list;
GString *string;
const gchar *domain;
gchar *context;
guint translatable : 1;
guint is_text : 1;
} ItemParserData;
static void
item_start_element (GtkBuildableParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
if (strcmp (element_name, "items") == 0)
{
if (!_gtk_builder_check_parent (data->builder, context, "object", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_INVALID, NULL, NULL,
G_MARKUP_COLLECT_INVALID))
_gtk_builder_prefix_error (data->builder, context, error);
}
else if (strcmp (element_name, "item") == 0)
{
gboolean translatable = FALSE;
const gchar *msg_context = NULL;
if (!_gtk_builder_check_parent (data->builder, context, "items", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_BOOLEAN|G_MARKUP_COLLECT_OPTIONAL, "translatable", &translatable,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "comments", NULL,
G_MARKUP_COLLECT_STRING|G_MARKUP_COLLECT_OPTIONAL, "context", &msg_context,
G_MARKUP_COLLECT_INVALID))
{
_gtk_builder_prefix_error (data->builder, context, error);
return;
}
data->is_text = TRUE;
data->translatable = translatable;
data->context = g_strdup (msg_context);
}
else
{
_gtk_builder_error_unhandled_tag (data->builder, context,
"GtkStringList", element_name,
error);
}
}
static void
item_text (GtkBuildableParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
if (data->is_text)
g_string_append_len (data->string, text, text_len);
}
static void
item_end_element (GtkBuildableParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
ItemParserData *data = (ItemParserData*)user_data;
/* Append the translated strings */
if (data->string->len)
{
if (data->translatable)
{
const char *translated;
translated = _gtk_builder_parser_translate (data->domain,
data->context,
data->string->str);
g_string_assign (data->string, translated);
}
g_sequence_append (data->list->items, gtk_string_object_new (data->string->str));
}
data->translatable = FALSE;
g_string_set_size (data->string, 0);
g_clear_pointer (&data->context, g_free);
data->is_text = FALSE;
}
static const GtkBuildableParser item_parser =
{
item_start_element,
item_end_element,
item_text
};
static gboolean
gtk_string_list_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GtkBuildableParser *parser,
gpointer *parser_data)
{
if (strcmp (tagname, "items") == 0)
{
ItemParserData *data;
data = g_slice_new0 (ItemParserData);
data->builder = g_object_ref (builder);
data->list = g_object_ref (GTK_STRING_LIST (buildable));
data->domain = gtk_builder_get_translation_domain (builder);
data->string = g_string_new ("");
*parser = item_parser;
*parser_data = data;
return TRUE;
}
return FALSE;
}
static void
gtk_string_list_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data)
{
if (strcmp (tagname, "items") == 0)
{
ItemParserData *data;
data = (ItemParserData*)user_data;
g_object_unref (data->list);
g_object_unref (data->builder);
g_string_free (data->string, TRUE);
g_slice_free (ItemParserData, data);
}
}
static void
gtk_string_list_buildable_init (GtkBuildableIface *iface)
{
iface->custom_tag_start = gtk_string_list_buildable_custom_tag_start;
iface->custom_finished = gtk_string_list_buildable_custom_finished;
}
G_DEFINE_TYPE_WITH_CODE (GtkStringList, gtk_string_list, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_string_list_buildable_init)
G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL,
gtk_string_list_model_init))
static void
gtk_string_list_dispose (GObject *object)
{
GtkStringList *self = GTK_STRING_LIST (object);
g_clear_pointer (&self->items, g_sequence_free);
G_OBJECT_CLASS (gtk_string_list_parent_class)->dispose (object);
}
static void
gtk_string_list_class_init (GtkStringListClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
gobject_class->dispose = gtk_string_list_dispose;
}
static void
gtk_string_list_init (GtkStringList *self)
{
self->items = g_sequence_new (g_object_unref);
}
/**
* gtk_string_list_new:
* @strings: (allow-none): The strings to put in the model
*
* Creates a new #GtkStringList with the given @strings.
*
* Returns: a new #GtkStringList
**/
GtkStringList *
gtk_string_list_new (const char **strings)
{
GtkStringList *self;
guint i;
self = g_object_new (GTK_TYPE_STRING_LIST, NULL);
for (i = 0; strings[i]; i++)
g_sequence_append (self->items, gtk_string_object_new (strings[i]));
return self;
}
/**
* gtk_string_list_splice:
* @self: a #GtkStringList
* @position: the position at which to make the change
* @n_removals: the number of strings to remove
* @additions: (array length=n_additions): the strings to add
* @n_additions: the number of items to add
*
* Changes @self by removing @n_removals strings and adding @n_additions
* strings to it.
*
* This function is more efficient than gtk_string_list_insert() and
* gtk_string_list_remove(), because it only emits
* #GListModel::items-changed once for the change.
*
* This function takes a ref on each item in @additions.
*
* The parameters @position and @n_removals must be correct (ie:
* @position + @n_removals must be less than or equal to the length
* of the list at the time this function is called).
*/
void
gtk_string_list_splice (GtkStringList *self,
guint position,
guint n_removals,
const char **additions,
guint n_additions)
{
GSequenceIter *it;
guint n_items;
g_return_if_fail (GTK_IS_STRING_LIST (self));
g_return_if_fail (position + n_removals >= position); /* overflow */
n_items = g_sequence_get_length (self->items);
g_return_if_fail (position + n_removals <= n_items);
it = g_sequence_get_iter_at_pos (self->items, position);
if (n_removals)
{
GSequenceIter *end;
end = g_sequence_iter_move (it, n_removals);
g_sequence_remove_range (it, end);
it = end;
}
if (n_additions)
{
gint i;
for (i = 0; i < n_additions; i++)
{
g_sequence_insert_before (it, gtk_string_object_new (additions[i]));
}
}
g_list_model_items_changed (G_LIST_MODEL (self), position, n_removals, n_additions);
}
/**
* gtk_string_list_append:
* @self: a #GtkStringList
* @string: the string to insert
*
* Appends @string to @self.
*
* The @string will be copied. See gtk_string_list_take()
* for a way to avoid that.
*/
void
gtk_string_list_append (GtkStringList *self,
const char *string)
{
guint n_items;
g_return_if_fail (GTK_IS_STRING_LIST (self));
n_items = g_sequence_get_length (self->items);
g_sequence_append (self->items, gtk_string_object_new (string));
g_list_model_items_changed (G_LIST_MODEL (self), n_items, 0, 1);
}
/**
* gtk_string_list_take:
* @self: a #GtkStringList
* @string: the string to insert
*
* Adds @string to self at the end, and takes
* ownership of it.
*
* This variant of gtk_string_list_append() is
* convenient for formatting strings:
*
* |[
* gtk_string_list_take (self, g_strdup_print ("%d dollars", lots));
* ]|
*/
void
gtk_string_list_take (GtkStringList *self,
char *string)
{
guint n_items;
g_return_if_fail (GTK_IS_STRING_LIST (self));
n_items = g_sequence_get_length (self->items);
g_sequence_append (self->items, gtk_string_object_new_take (string));
g_list_model_items_changed (G_LIST_MODEL (self), n_items, 0, 1);
}
/**
* gtk_string_list_remove:
* @self: a #GtkStringList
* @position: the position of the string that is to be removed
*
* Removes the string at @position from @self. @position must
* be smaller than the current length of the list.
*/
void
gtk_string_list_remove (GtkStringList *self,
guint position)
{
GSequenceIter *iter;
g_return_if_fail (GTK_IS_STRING_LIST (self));
iter = g_sequence_get_iter_at_pos (self->items, position);
g_return_if_fail (!g_sequence_iter_is_end (iter));
g_sequence_remove (iter);
g_list_model_items_changed (G_LIST_MODEL (self), position, 1, 0);
}
/**
* gtk_string_list_get_string:
* @self: a #GtkStringList
* @position:
*
* Gets the string that is at @position in @self. @position
* must be smaller than the current length of the list.
*
* This function returns the const char *. To get the
* object wrapping it, use g_list_model_get_item().
*
* Returns: the string at the given position
*/
const char *
gtk_string_list_get_string (GtkStringList *self,
guint position)
{
GSequenceIter *iter;
g_return_val_if_fail (GTK_IS_STRING_LIST (self), NULL);
iter = g_sequence_get_iter_at_pos (self->items, position);
if (g_sequence_iter_is_end (iter))
{
return NULL;
}
else
{
GtkStringObject *obj = g_sequence_get (iter);
return obj->string;
}
}

75
gtk/gtkstringlist.h Normal file
View File

@ -0,0 +1,75 @@
/*
* Copyright © 2020 Red Hat, Inc.
*
* 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: Matthias Clasen <mclasen@redhat.com>
*/
#ifndef __GTK_STRING_LIST_H__
#define __GTK_STRING_LIST_H__
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gio/gio.h>
/* for GDK_AVAILABLE_IN_ALL */
#include <gdk/gdk.h>
G_BEGIN_DECLS
#define GTK_TYPE_STRING_OBJECT (gtk_string_object_get_type ())
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkStringObject, gtk_string_object, GTK, STRING_OBJECT, GObject)
GDK_AVAILABLE_IN_ALL
const char * gtk_string_object_get_string (GtkStringObject *self);
#define GTK_TYPE_STRING_LIST (gtk_string_list_get_type ())
GDK_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (GtkStringList, gtk_string_list, GTK, STRING_LIST, GObject)
GDK_AVAILABLE_IN_ALL
GtkStringList * gtk_string_list_new (const char **strings);
GDK_AVAILABLE_IN_ALL
void gtk_string_list_append (GtkStringList *self,
const char *string);
GDK_AVAILABLE_IN_ALL
void gtk_string_list_take (GtkStringList *self,
char *string);
GDK_AVAILABLE_IN_ALL
void gtk_string_list_remove (GtkStringList *self,
guint position);
GDK_AVAILABLE_IN_ALL
void gtk_string_list_splice (GtkStringList *self,
guint position,
guint n_removals,
const char **additions,
guint n_additions);
GDK_AVAILABLE_IN_ALL
const char * gtk_string_list_get_string (GtkStringList *self,
guint position);
G_END_DECLS
#endif /* __GTK_STRING_LIST_H__ */

1
gtk/meson.build
View File

@ -380,6 +380,7 @@ gtk_public_sources = files([
'gtkstackswitcher.c',
'gtkstatusbar.c',
'gtkstringfilter.c',
'gtkstringlist.c',
'gtkstringsorter.c',
'gtkstylecontext.c',
'gtkstyleprovider.c',

30
gtk/ui/gtkprintunixdialog.ui
View File

@ -511,11 +511,15 @@
<object class="GtkDropDown" id="page_set_combo">
<property name="valign">baseline</property>
<property name="selected">0</property>
<items>
<item translatable="yes">All sheets</item>
<item translatable="yes">Even sheets</item>
<item translatable="yes">Odd sheets</item>
</items>
<property name="model">
<object class="GtkStringList">
<items>
<item translatable="yes">All sheets</item>
<item translatable="yes">Even sheets</item>
<item translatable="yes">Odd sheets</item>
</items>
</object>
</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">3</property>
@ -695,12 +699,16 @@
<property name="sensitive">0</property>
<property name="selected">0</property>
<property name="valign">baseline</property>
<items>
<item translatable="yes">Portrait</item>
<item translatable="yes">Landscape</item>
<item translatable="yes">Reverse portrait</item>
<item translatable="yes">Reverse landscape</item>
</items>
<property name="model">
<object class="GtkStringList">
<items>
<item translatable="yes">Portrait</item>
<item translatable="yes">Landscape</item>
<item translatable="yes">Reverse portrait</item>
<item translatable="yes">Reverse landscape</item>
</items>
</object>
</property>
<layout>
<property name="left-attach">1</property>
<property name="top-attach">4</property>

1
testsuite/gtk/meson.build
View File

@ -58,6 +58,7 @@ tests = [
['sorter'],
['sortlistmodel'],
['spinbutton'],
['stringlist'],
['templates'],
['textbuffer'],
['textiter'],

249
testsuite/gtk/stringlist.c Normal file
View File

@ -0,0 +1,249 @@
/* GtkStringList tests
*
* Copyright (C) 2020, Red Hat, Inc.
* Authors: Matthias Clasen
*
* 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 <gtk/gtk.h>
static GQuark changes_quark;
static char *
model_to_string (GListModel *model)
{
GtkStringList *self = GTK_STRING_LIST (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, "%s", gtk_string_list_get_string (self, i));
}
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 GtkStringList *
new_model (const char **strings)
{
GtkStringList *result;
GString *changes;
result = gtk_string_list_new (strings);
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)
{
GtkStringList *list;
list = new_model ((const char *[]){ NULL });
assert_model (list, "");
assert_changes (list, "");
g_object_unref (list);
}
static void
test_create_strv (void)
{
GtkStringList *list;
list = new_model ((const char *[]){ "a", "b", "c", NULL });
assert_model (list, "a b c");
assert_changes (list, "");
g_object_unref (list);
}
static void
test_create_builder (void)
{
const char *ui =
"<interface>"
" <object class=\"GtkStringList\" id=\"list\">"
" <items>"
" <item translatable=\"yes\" context=\"ctx\" comments=\"none\">a</item>"
" <item>b</item>"
" <item>c</item>"
" </items>"
" </object>"
"</interface>";
GtkBuilder *builder;
GtkStringList *list;
builder = gtk_builder_new_from_string (ui, -1);
list = GTK_STRING_LIST (gtk_builder_get_object (builder, "list"));
assert_model (list, "a b c");
g_object_unref (list);
}
static void
test_get_string (void)
{
GtkStringList *list;
list = new_model ((const char *[]){ "a", "b", "c", NULL });
assert_model (list, "a b c");
g_assert_cmpstr (gtk_string_list_get_string (list, 0), ==, "a");
g_assert_cmpstr (gtk_string_list_get_string (list, 1), ==, "b");
g_assert_cmpstr (gtk_string_list_get_string (list, 2), ==, "c");
g_assert_null (gtk_string_list_get_string (list, 3));
g_object_unref (list);
}
static void
test_splice (void)
{
GtkStringList *list;
list = new_model ((const char *[]){ "a", "b", "c", "d", "e", NULL });
assert_model (list, "a b c d e");
gtk_string_list_splice (list, 2, 2, (const char *[]){ "x", "y", "z" }, 3);
assert_model (list, "a b x y z e");
assert_changes (list, "2-2+3");
g_object_unref (list);
}
static void
test_add_remove (void)
{
GtkStringList *list;
list = new_model ((const char *[]){ "a", "b", "c", "d", "e", NULL });
assert_model (list, "a b c d e");
gtk_string_list_remove (list, 2);
assert_model (list, "a b d e");
assert_changes (list, "-2");
gtk_string_list_append (list, "x");
assert_model (list, "a b d e x");
assert_changes (list, "+4");
g_object_unref (list);
}
static void
test_take (void)
{
GtkStringList *list;
list = new_model ((const char *[]){ NULL });
assert_model (list, "");
gtk_string_list_take (list, g_strdup_printf ("%d dollars", (int)1e6));
assert_model (list, "1000000 dollars");
assert_changes (list, "+0");
g_object_unref (list);
}
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
changes_quark = g_quark_from_static_string ("What did I see? Can I believe what I saw?");
g_test_add_func ("/stringlist/create/empty", test_create_empty);
g_test_add_func ("/stringlist/create/strv", test_create_strv);
g_test_add_func ("/stringlist/create/builder", test_create_builder);
g_test_add_func ("/stringlist/get_string", test_get_string);
g_test_add_func ("/stringlist/splice", test_splice);
g_test_add_func ("/stringlist/add_remove", test_add_remove);
g_test_add_func ("/stringlist/take", test_take);
return g_test_run ();
}