525 lines
15 KiB
C
525 lines
15 KiB
C
/* GTK - The GIMP Toolkit
|
|
*
|
|
* Copyright (C) 2010 Christian Dywan
|
|
*
|
|
* 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 <string.h>
|
|
|
|
#include "config.h"
|
|
|
|
#include "gtkcomboboxtext.h"
|
|
#include "gtkcombobox.h"
|
|
#include "gtkcellrenderertext.h"
|
|
#include "gtkcelllayout.h"
|
|
#include "gtkbuildable.h"
|
|
#include "gtkbuilderprivate.h"
|
|
#include "gtkalias.h"
|
|
|
|
/**
|
|
* SECTION:gtkcomboboxtext
|
|
* @Short_description: A simple, text-only combo box
|
|
* @Title: GtkComboBoxText
|
|
* @See_also: @GtkComboBox
|
|
*
|
|
* A GtkComboBoxText is a simple variant of #GtkComboBox that hides
|
|
* the model-view complexity for simple text-only use cases.
|
|
*
|
|
* To create a GtkComboBoxText, use gtk_combo_box_text_new() or
|
|
* gtk_combo_box_text_new_with_entry().
|
|
*
|
|
* You can add items to a GtkComboBoxText with
|
|
* gtk_combo_box_text_append_text(), gtk_combo_box_text_insert_text()
|
|
* or gtk_combo_box_text_prepend_text() and remove options with
|
|
* gtk_combo_box_text_remove().
|
|
*
|
|
* If the GtkComboBoxText contains an entry (via the 'has-entry' property),
|
|
* its contents can be retrieved using gtk_combo_box_text_get_active_text().
|
|
* The entry itself can be accessed by calling gtk_bin_get_child() on the
|
|
* combo box.
|
|
*
|
|
* <refsect2 id="GtkComboBoxText-BUILDER-UI">
|
|
* <title>GtkComboBoxText as GtkBuildable</title>
|
|
* <para>
|
|
* The GtkComboBoxText 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".
|
|
* </para>
|
|
* <example>
|
|
* <title>A UI definition fragment specifying GtkComboBoxText items</title>
|
|
* <programlisting><![CDATA[
|
|
* <object class="GtkComboBoxText">
|
|
* <items>
|
|
* <item translatable="yes">Factory</item>
|
|
* <item translatable="yes">Home</item>
|
|
* <item translatable="yes">Subway</item>
|
|
* </items>
|
|
* </object>
|
|
* ]]></programlisting>
|
|
* </example>
|
|
* </refsect2>
|
|
*/
|
|
|
|
static void gtk_combo_box_text_buildable_interface_init (GtkBuildableIface *iface);
|
|
static gboolean gtk_combo_box_text_buildable_custom_tag_start (GtkBuildable *buildable,
|
|
GtkBuilder *builder,
|
|
GObject *child,
|
|
const gchar *tagname,
|
|
GMarkupParser *parser,
|
|
gpointer *data);
|
|
|
|
static void gtk_combo_box_text_buildable_custom_finished (GtkBuildable *buildable,
|
|
GtkBuilder *builder,
|
|
GObject *child,
|
|
const gchar *tagname,
|
|
gpointer user_data);
|
|
|
|
static GtkBuildableIface *buildable_parent_iface = NULL;
|
|
|
|
G_DEFINE_TYPE_WITH_CODE (GtkComboBoxText, gtk_combo_box_text, GTK_TYPE_COMBO_BOX,
|
|
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
|
|
gtk_combo_box_text_buildable_interface_init));
|
|
|
|
static GObject *
|
|
gtk_combo_box_text_constructor (GType type,
|
|
guint n_construct_properties,
|
|
GObjectConstructParam *construct_properties)
|
|
{
|
|
GObject *object;
|
|
|
|
object = G_OBJECT_CLASS (gtk_combo_box_text_parent_class)->constructor
|
|
(type, n_construct_properties, construct_properties);
|
|
|
|
if (!gtk_combo_box_get_has_entry (GTK_COMBO_BOX (object)))
|
|
{
|
|
GtkCellRenderer *cell;
|
|
|
|
cell = gtk_cell_renderer_text_new ();
|
|
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (object), cell, TRUE);
|
|
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (object), cell,
|
|
"text", 0,
|
|
NULL);
|
|
}
|
|
|
|
return object;
|
|
}
|
|
|
|
static void
|
|
gtk_combo_box_text_init (GtkComboBoxText *combo_box)
|
|
{
|
|
GtkListStore *store;
|
|
|
|
store = gtk_list_store_new (1, G_TYPE_STRING);
|
|
gtk_combo_box_set_model (GTK_COMBO_BOX (combo_box), GTK_TREE_MODEL (store));
|
|
g_object_unref (store);
|
|
}
|
|
|
|
static void
|
|
gtk_combo_box_text_class_init (GtkComboBoxTextClass *klass)
|
|
{
|
|
GObjectClass *object_class;
|
|
|
|
object_class = (GObjectClass *)klass;
|
|
object_class->constructor = gtk_combo_box_text_constructor;
|
|
}
|
|
|
|
static void
|
|
gtk_combo_box_text_buildable_interface_init (GtkBuildableIface *iface)
|
|
{
|
|
buildable_parent_iface = g_type_interface_peek_parent (iface);
|
|
|
|
iface->custom_tag_start = gtk_combo_box_text_buildable_custom_tag_start;
|
|
iface->custom_finished = gtk_combo_box_text_buildable_custom_finished;
|
|
}
|
|
|
|
typedef struct {
|
|
GtkBuilder *builder;
|
|
GObject *object;
|
|
const gchar *domain;
|
|
|
|
gchar *context;
|
|
gchar *string;
|
|
guint translatable : 1;
|
|
|
|
guint is_text : 1;
|
|
} ItemParserData;
|
|
|
|
static void
|
|
item_start_element (GMarkupParseContext *context,
|
|
const gchar *element_name,
|
|
const gchar **names,
|
|
const gchar **values,
|
|
gpointer user_data,
|
|
GError **error)
|
|
{
|
|
ItemParserData *data = (ItemParserData*)user_data;
|
|
guint i;
|
|
|
|
if (strcmp (element_name, "item") == 0)
|
|
{
|
|
data->is_text = TRUE;
|
|
|
|
for (i = 0; names[i]; i++)
|
|
{
|
|
if (strcmp (names[i], "translatable") == 0)
|
|
{
|
|
gboolean bval;
|
|
|
|
if (!_gtk_builder_boolean_from_string (values[i], &bval,
|
|
error))
|
|
return;
|
|
|
|
data->translatable = bval;
|
|
}
|
|
else if (strcmp (names[i], "comments") == 0)
|
|
{
|
|
/* do nothing, comments are for translators */
|
|
}
|
|
else if (strcmp (names[i], "context") == 0)
|
|
data->context = g_strdup (values[i]);
|
|
else
|
|
g_warning ("Unknown custom combo box item attribute: %s", names[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
item_text (GMarkupParseContext *context,
|
|
const gchar *text,
|
|
gsize text_len,
|
|
gpointer user_data,
|
|
GError **error)
|
|
{
|
|
ItemParserData *data = (ItemParserData*)user_data;
|
|
gchar *string;
|
|
|
|
if (!data->is_text)
|
|
return;
|
|
|
|
string = g_strndup (text, text_len);
|
|
|
|
if (data->translatable && text_len)
|
|
{
|
|
gchar *translated;
|
|
|
|
/* FIXME: This will not use the domain set in the .ui file,
|
|
* since the parser is not telling the builder about the domain.
|
|
* However, it will work for gtk_builder_set_translation_domain() calls.
|
|
*/
|
|
translated = _gtk_builder_parser_translate (data->domain,
|
|
data->context,
|
|
string);
|
|
g_free (string);
|
|
string = translated;
|
|
}
|
|
|
|
data->string = string;
|
|
}
|
|
|
|
static void
|
|
item_end_element (GMarkupParseContext *context,
|
|
const gchar *element_name,
|
|
gpointer user_data,
|
|
GError **error)
|
|
{
|
|
ItemParserData *data = (ItemParserData*)user_data;
|
|
|
|
/* Append the translated strings */
|
|
if (data->string)
|
|
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (data->object), data->string);
|
|
|
|
data->translatable = FALSE;
|
|
g_free (data->context);
|
|
g_free (data->string);
|
|
data->context = NULL;
|
|
data->string = NULL;
|
|
data->is_text = FALSE;
|
|
}
|
|
|
|
static const GMarkupParser item_parser =
|
|
{
|
|
item_start_element,
|
|
item_end_element,
|
|
item_text
|
|
};
|
|
|
|
static gboolean
|
|
gtk_combo_box_text_buildable_custom_tag_start (GtkBuildable *buildable,
|
|
GtkBuilder *builder,
|
|
GObject *child,
|
|
const gchar *tagname,
|
|
GMarkupParser *parser,
|
|
gpointer *data)
|
|
{
|
|
if (buildable_parent_iface->custom_tag_start (buildable, builder, child,
|
|
tagname, parser, data))
|
|
return TRUE;
|
|
|
|
if (strcmp (tagname, "items") == 0)
|
|
{
|
|
ItemParserData *parser_data;
|
|
|
|
parser_data = g_slice_new0 (ItemParserData);
|
|
parser_data->builder = g_object_ref (builder);
|
|
parser_data->object = G_OBJECT (g_object_ref (buildable));
|
|
parser_data->domain = gtk_builder_get_translation_domain (builder);
|
|
*parser = item_parser;
|
|
*data = parser_data;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_combo_box_text_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_object_unref (data->object);
|
|
g_object_unref (data->builder);
|
|
g_slice_free (ItemParserData, data);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_new:
|
|
*
|
|
* Creates a new #GtkComboBoxText, which is a #GtkComboBox just displaying
|
|
* strings. See gtk_combo_box_entry_new_with_text().
|
|
*
|
|
* Return value: A new #GtkComboBoxText
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
GtkWidget *
|
|
gtk_combo_box_text_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_COMBO_BOX_TEXT,
|
|
"entry-text-column", 0,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_new_with_entry:
|
|
*
|
|
* Creates a new #GtkComboBoxText, which is a #GtkComboBox just displaying
|
|
* strings. The combo box created by this function has an entry.
|
|
*
|
|
* Return value: a new #GtkComboBoxText
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
GtkWidget *
|
|
gtk_combo_box_text_new_with_entry (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_COMBO_BOX_TEXT,
|
|
"has-entry", TRUE,
|
|
"entry-text-column", 0,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_append_text:
|
|
* @combo_box: A #GtkComboBoxText
|
|
* @text: A string
|
|
*
|
|
* Appends @string to the list of strings stored in @combo_box.
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
void
|
|
gtk_combo_box_text_append_text (GtkComboBoxText *combo_box,
|
|
const gchar *text)
|
|
{
|
|
GtkListStore *store;
|
|
GtkTreeIter iter;
|
|
gint text_column;
|
|
gint column_type;
|
|
|
|
g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
|
|
g_return_if_fail (text != NULL);
|
|
|
|
store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
|
|
g_return_if_fail (GTK_IS_LIST_STORE (store));
|
|
|
|
text_column = gtk_combo_box_get_entry_text_column (GTK_COMBO_BOX (combo_box));
|
|
if (gtk_combo_box_get_has_entry (GTK_COMBO_BOX (combo_box)))
|
|
g_return_if_fail (text_column >= 0);
|
|
else if (text_column < 0)
|
|
text_column = 0;
|
|
|
|
column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), text_column);
|
|
g_return_if_fail (column_type == G_TYPE_STRING);
|
|
|
|
gtk_list_store_append (store, &iter);
|
|
gtk_list_store_set (store, &iter, text_column, text, -1);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_insert_text:
|
|
* @combo_box: A #GtkComboBoxText
|
|
* @position: An index to insert @text
|
|
* @text: A string
|
|
*
|
|
* Inserts @string at @position in the list of strings stored in @combo_box.
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
void
|
|
gtk_combo_box_text_insert_text (GtkComboBoxText *combo_box,
|
|
gint position,
|
|
const gchar *text)
|
|
{
|
|
GtkListStore *store;
|
|
GtkTreeIter iter;
|
|
gint text_column;
|
|
gint column_type;
|
|
|
|
g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
|
|
g_return_if_fail (position >= 0);
|
|
g_return_if_fail (text != NULL);
|
|
|
|
store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
|
|
g_return_if_fail (GTK_IS_LIST_STORE (store));
|
|
text_column = gtk_combo_box_get_entry_text_column (GTK_COMBO_BOX (combo_box));
|
|
column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), text_column);
|
|
g_return_if_fail (column_type == G_TYPE_STRING);
|
|
|
|
gtk_list_store_insert (store, &iter, position);
|
|
gtk_list_store_set (store, &iter, text_column, text, -1);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_prepend_text:
|
|
* @combo_box: A #GtkComboBox
|
|
* @text: A string
|
|
*
|
|
* Prepends @string to the list of strings stored in @combo_box.
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
void
|
|
gtk_combo_box_text_prepend_text (GtkComboBoxText *combo_box,
|
|
const gchar *text)
|
|
{
|
|
GtkListStore *store;
|
|
GtkTreeIter iter;
|
|
gint text_column;
|
|
gint column_type;
|
|
|
|
g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
|
|
g_return_if_fail (text != NULL);
|
|
|
|
store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
|
|
g_return_if_fail (GTK_IS_LIST_STORE (store));
|
|
|
|
text_column = gtk_combo_box_get_entry_text_column (GTK_COMBO_BOX (combo_box));
|
|
column_type = gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), text_column);
|
|
g_return_if_fail (column_type == G_TYPE_STRING);
|
|
|
|
gtk_list_store_prepend (store, &iter);
|
|
gtk_list_store_set (store, &iter, text_column, text, -1);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_remove:
|
|
* @combo_box: A #GtkComboBox
|
|
* @position: Index of the item to remove
|
|
*
|
|
* Removes the string at @position from @combo_box.
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
void
|
|
gtk_combo_box_text_remove (GtkComboBoxText *combo_box,
|
|
gint position)
|
|
{
|
|
GtkTreeModel *model;
|
|
GtkListStore *store;
|
|
GtkTreeIter iter;
|
|
|
|
g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
|
|
g_return_if_fail (position >= 0);
|
|
|
|
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
|
|
store = GTK_LIST_STORE (model);
|
|
g_return_if_fail (GTK_IS_LIST_STORE (store));
|
|
|
|
if (gtk_tree_model_iter_nth_child (model, &iter, NULL, position))
|
|
gtk_list_store_remove (store, &iter);
|
|
}
|
|
|
|
/**
|
|
* gtk_combo_box_text_get_active_text:
|
|
* @combo_box: A #GtkComboBoxText
|
|
*
|
|
* Returns the currently active string in @combo_box, or %NULL
|
|
* if none is selected. If @combo_box contains an entry, this
|
|
* function will return its contents (which will not necessarily
|
|
* be an item from the list).
|
|
*
|
|
* Returns: a newly allocated string containing the currently
|
|
* active text. Must be freed with g_free().
|
|
*
|
|
* Since: 2.24
|
|
*/
|
|
gchar *
|
|
gtk_combo_box_text_get_active_text (GtkComboBoxText *combo_box)
|
|
{
|
|
GtkTreeIter iter;
|
|
gchar *text = NULL;
|
|
|
|
g_return_val_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box), NULL);
|
|
|
|
if (gtk_combo_box_get_has_entry (GTK_COMBO_BOX (combo_box)))
|
|
{
|
|
GtkWidget *entry;
|
|
|
|
entry = gtk_bin_get_child (GTK_BIN (combo_box));
|
|
text = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
|
|
}
|
|
else if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo_box), &iter))
|
|
{
|
|
GtkTreeModel *model;
|
|
gint text_column;
|
|
gint column_type;
|
|
|
|
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
|
|
g_return_val_if_fail (GTK_IS_LIST_STORE (model), NULL);
|
|
text_column = gtk_combo_box_get_entry_text_column (GTK_COMBO_BOX (combo_box));
|
|
column_type = gtk_tree_model_get_column_type (model, text_column);
|
|
g_return_val_if_fail (column_type == G_TYPE_STRING, NULL);
|
|
gtk_tree_model_get (model, &iter, text_column, &text, -1);
|
|
}
|
|
|
|
return text;
|
|
}
|
|
|
|
#define __GTK_COMBO_BOX_TEXT_C__
|
|
#include "gtkaliasdef.c"
|