/* 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 "config.h"
#include "gtkcomboboxtext.h"
#include "gtkcombobox.h"
#include "gtkcellrenderertext.h"
#include "gtkcelllayout.h"
#include "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkliststore.h"
#include <string.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
/**
* GtkComboBoxText :
*
* A ` GtkComboBoxText ` is a simple variant of ` GtkComboBox ` for text - only
* use cases .
*
* < picture >
* < source srcset = " combo - box - text - dark . png " media = " ( prefers - color - scheme : dark ) " >
* < img alt = " An example GtkComboBoxText " src = " combo - box - text . png " >
* < / picture >
*
* ` GtkComboBoxText ` hides the model - view complexity of ` GtkComboBox ` .
*
* To create a ` GtkComboBoxText ` , use [ ctor @ Gtk . ComboBoxText . new ] or
* [ ctor @ Gtk . ComboBoxText . new_with_entry ] .
*
* You can add items to a ` GtkComboBoxText ` with
* [ method @ Gtk . ComboBoxText . append_text ] ,
* [ method @ Gtk . ComboBoxText . insert_text ] or
* [ method @ Gtk . ComboBoxText . prepend_text ] and remove options with
* [ method @ Gtk . ComboBoxText . remove ] .
*
* If the ` GtkComboBoxText ` contains an entry ( via the
* [ property @ Gtk . ComboBox : has - entry ] property ) , its contents can be retrieved
* using [ method @ Gtk . ComboBoxText . get_active_text ] .
*
* You should not call [ method @ Gtk . ComboBox . set_model ] or attempt to pack more
* cells into this combo box via its [ iface @ Gtk . CellLayout ] interface .
*
* # # GtkComboBoxText as GtkBuildable
*
* 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 can specify the “ id ”
* corresponding to the appended text and also supports the regular
* translation attributes “ translatable ” , “ context ” and “ comments ” .
*
* Here is a UI definition fragment specifying ` GtkComboBoxText ` items :
* ` ` ` xml
* < object class = " GtkComboBoxText " >
* < items >
* < item translatable = " yes " id = " factory " > Factory < / item >
* < item translatable = " yes " id = " home " > Home < / item >
* < item translatable = " yes " id = " subway " > Subway < / item >
* < / items >
* < / object >
* ` ` `
*
* # # CSS nodes
*
* ` ` `
* combobox
* ╰ ─ ─ box . linked
* ├ ─ ─ entry . combo
* ├ ─ ─ button . combo
* ╰ ─ ─ window . popup
* ` ` `
*
* ` GtkComboBoxText ` has a single CSS node with name combobox . It adds
* the style class . combo to the main CSS nodes of its entry and button
* children , and the . linked class to the node of its internal box .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ] with a [ class @ Gtk . StringList ]
* instead
*/
typedef struct _GtkComboBoxTextClass GtkComboBoxTextClass;
struct _GtkComboBoxText
{
GtkComboBox parent_instance;
};
struct _GtkComboBoxTextClass
{
GtkComboBoxClass parent_class;
};
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 char *tagname,
GtkBuildableParser *parser,
gpointer *data);
static void gtk_combo_box_text_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *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 void
gtk_combo_box_text_constructed (GObject *object)
{
const int text_column = 0 ;
G_OBJECT_CLASS (gtk_combo_box_text_parent_class)->constructed (object);
gtk_combo_box_set_entry_text_column (GTK_COMBO_BOX (object), text_column);
gtk_combo_box_set_id_column (GTK_COMBO_BOX (object), 1 );
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" , text_column,
NULL);
}
}
static void
gtk_combo_box_text_init (GtkComboBoxText *combo_box)
{
GtkListStore *store;
store = gtk_list_store_new (2 , G_TYPE_STRING, 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->constructed = gtk_combo_box_text_constructed;
}
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 char *domain;
char *id;
GString *string;
char *context;
guint translatable : 1 ;
guint is_text : 1 ;
} ItemParserData;
static void
item_start_element (GtkBuildableParseContext *context,
const char *element_name,
const char **names,
const char **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 )
{
const char *id = NULL;
gboolean translatable = FALSE ;
const char *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_STRING|G_MARKUP_COLLECT_OPTIONAL, "id" , &id,
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);
data->id = g_strdup (id);
}
else
{
_gtk_builder_error_unhandled_tag (data->builder, context,
"GtkComboBoxText" , element_name,
error);
}
}
static void
item_text (GtkBuildableParseContext *context,
const char *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 char *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);
}
gtk_combo_box_text_append (GTK_COMBO_BOX_TEXT (data->object), data->id, data->string->str);
}
data->translatable = FALSE ;
g_string_set_size (data->string, 0 );
g_clear_pointer (&data->context, g_free);
g_clear_pointer (&data->id, g_free);
data->is_text = FALSE ;
}
static const GtkBuildableParser 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 char *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 = (GObject *) g_object_ref (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_combo_box_text_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *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_string_free (data->string, TRUE );
g_slice_free (ItemParserData, data);
}
}
/**
* gtk_combo_box_text_new :
*
* Creates a new ` GtkComboBoxText ` .
*
* Returns : A new ` GtkComboBoxText `
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
GtkWidget *
gtk_combo_box_text_new (void )
{
return g_object_new (GTK_TYPE_COMBO_BOX_TEXT,
NULL);
}
/**
* gtk_combo_box_text_new_with_entry :
*
* Creates a new ` GtkComboBoxText ` with an entry .
*
* Returns : a new ` GtkComboBoxText `
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
GtkWidget *
gtk_combo_box_text_new_with_entry (void )
{
return g_object_new (GTK_TYPE_COMBO_BOX_TEXT,
"has-entry" , TRUE ,
NULL);
}
/**
* gtk_combo_box_text_append_text :
* @ combo_box : A ` GtkComboBoxText `
* @ text : A string
*
* Appends @ text to the list of strings stored in @ combo_box .
*
* This is the same as calling [ method @ Gtk . ComboBoxText . insert_text ]
* with a position of - 1 .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_append_text (GtkComboBoxText *combo_box,
const char *text)
{
gtk_combo_box_text_insert (combo_box, -1 , NULL, text);
}
/**
* gtk_combo_box_text_prepend_text :
* @ combo_box : A ` GtkComboBox `
* @ text : A string
*
* Prepends @ text to the list of strings stored in @ combo_box .
*
* This is the same as calling [ method @ Gtk . ComboBoxText . insert_text ]
* with a position of 0 .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_prepend_text (GtkComboBoxText *combo_box,
const char *text)
{
gtk_combo_box_text_insert (combo_box, 0 , NULL, text);
}
/**
* gtk_combo_box_text_insert_text :
* @ combo_box : A ` GtkComboBoxText `
* @ position : An index to insert @ text
* @ text : A string
*
* Inserts @ text at @ position in the list of strings stored in @ combo_box .
*
* If @ position is negative then @ text is appended .
*
* This is the same as calling [ method @ Gtk . ComboBoxText . insert ]
* with a % NULL ID string .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_insert_text (GtkComboBoxText *combo_box,
int position,
const char *text)
{
gtk_combo_box_text_insert (combo_box, position, NULL, text);
}
/**
* gtk_combo_box_text_append :
* @ combo_box : A ` GtkComboBoxText `
* @ id : ( nullable ) : a string ID for this value
* @ text : A string
*
* Appends @ text to the list of strings stored in @ combo_box .
*
* If @ id is non - % NULL then it is used as the ID of the row .
*
* This is the same as calling [ method @ Gtk . ComboBoxText . insert ]
* with a position of - 1 .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_append (GtkComboBoxText *combo_box,
const char *id,
const char *text)
{
gtk_combo_box_text_insert (combo_box, -1 , id, text);
}
/**
* gtk_combo_box_text_prepend :
* @ combo_box : A ` GtkComboBox `
* @ id : ( nullable ) : a string ID for this value
* @ text : a string
*
* Prepends @ text to the list of strings stored in @ combo_box .
*
* If @ id is non - % NULL then it is used as the ID of the row .
*
* This is the same as calling [ method @ Gtk . ComboBoxText . insert ]
* with a position of 0 .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_prepend (GtkComboBoxText *combo_box,
const char *id,
const char *text)
{
gtk_combo_box_text_insert (combo_box, 0 , id, text);
}
/**
* gtk_combo_box_text_insert :
* @ combo_box : A ` GtkComboBoxText `
* @ position : An index to insert @ text
* @ id : ( nullable ) : a string ID for this value
* @ text : A string to display
*
* Inserts @ text at @ position in the list of strings stored in @ combo_box .
*
* If @ id is non - % NULL then it is used as the ID of the row .
* See [ property @ Gtk . ComboBox : id - column ] .
*
* If @ position is negative then @ text is appended .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_insert (GtkComboBoxText *combo_box,
int position,
const char *id,
const char *text)
{
GtkListStore *store;
GtkTreeIter iter;
int text_column;
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 ;
g_return_if_fail (gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), text_column) == G_TYPE_STRING);
if (position < 0 )
gtk_list_store_append (store, &iter);
else
gtk_list_store_insert (store, &iter, position);
gtk_list_store_set (store, &iter, text_column, text, -1 );
if (id != NULL)
{
int id_column;
id_column = gtk_combo_box_get_id_column (GTK_COMBO_BOX (combo_box));
g_return_if_fail (id_column >= 0 );
g_return_if_fail (gtk_tree_model_get_column_type (GTK_TREE_MODEL (store), id_column) == G_TYPE_STRING);
gtk_list_store_set (store, &iter, id_column, id, -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 .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_remove (GtkComboBoxText *combo_box,
int 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_remove_all :
* @ combo_box : A ` GtkComboBoxText `
*
* Removes all the text entries from the combo box .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
void
gtk_combo_box_text_remove_all (GtkComboBoxText *combo_box)
{
GtkListStore *store;
g_return_if_fail (GTK_IS_COMBO_BOX_TEXT (combo_box));
store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box)));
gtk_list_store_clear (store);
}
/**
* gtk_combo_box_text_get_active_text :
* @ combo_box : A ` GtkComboBoxText `
*
* Returns the currently active string in @ combo_box .
*
* If no row is currently selected , % NULL is returned .
* If @ combo_box contains an entry , this function will
* return its contents ( which will not necessarily
* be an item from the list ) .
*
* Returns : ( nullable ) ( transfer full ) : a newly allocated
* string containing the currently active text .
* Must be freed with g_free ( ) .
*
* Deprecated : 4 . 10 : Use [ class @ Gtk . DropDown ]
*/
char *
gtk_combo_box_text_get_active_text (GtkComboBoxText *combo_box)
{
GtkTreeIter iter;
char *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_combo_box_get_child (GTK_COMBO_BOX (combo_box));
text = g_strdup (gtk_editable_get_text (GTK_EDITABLE (entry)));
}
else if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo_box), &iter))
{
GtkTreeModel *model;
int text_column;
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));
g_return_val_if_fail (text_column >= 0 , NULL);
g_return_val_if_fail (gtk_tree_model_get_column_type (model, text_column) == G_TYPE_STRING, NULL);
gtk_tree_model_get (model, &iter, text_column, &text, -1 );
}
return text;
}
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