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gtk2/gtk/gtkcomboboxentry.c

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/* gtkcomboboxentry.c
* Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#undef GTK_DISABLE_DEPRECATED
#include "gtkcomboboxentry.h"
#include "gtkcelllayout.h"
#include "gtkentry.h"
#include "gtkcellrenderertext.h"
#include "gtkprivate.h"
#include "gtkintl.h"
#include "gtkbuildable.h"
#include "gtkalias.h"
#define GTK_COMBO_BOX_ENTRY_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_COMBO_BOX_ENTRY, GtkComboBoxEntryPrivate))
struct _GtkComboBoxEntryPrivate
{
GtkCellRenderer *text_renderer;
gint text_column;
};
static void gtk_combo_box_entry_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_combo_box_entry_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_combo_box_entry_add (GtkContainer *container,
GtkWidget *child);
static void gtk_combo_box_entry_remove (GtkContainer *container,
GtkWidget *child);
static gchar *gtk_combo_box_entry_get_active_text (GtkComboBox *combo_box);
static void gtk_combo_box_entry_active_changed (GtkComboBox *combo_box,
gpointer user_data);
static void gtk_combo_box_entry_contents_changed (GtkEntry *entry,
gpointer user_data);
static gboolean gtk_combo_box_entry_mnemonic_activate (GtkWidget *entry,
gboolean group_cycling);
static void gtk_combo_box_entry_grab_focus (GtkWidget *widget);
static void has_frame_changed (GtkComboBoxEntry *entry_box,
GParamSpec *pspec,
gpointer data);
static void gtk_combo_box_entry_buildable_interface_init (GtkBuildableIface *iface);
static GObject * gtk_combo_box_entry_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname);
enum
{
PROP_0,
PROP_TEXT_COLUMN
};
G_DEFINE_TYPE_WITH_CODE (GtkComboBoxEntry, gtk_combo_box_entry, GTK_TYPE_COMBO_BOX,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_combo_box_entry_buildable_interface_init))
static void
gtk_combo_box_entry_class_init (GtkComboBoxEntryClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkComboBoxClass *combo_class;
object_class = (GObjectClass *)klass;
object_class->set_property = gtk_combo_box_entry_set_property;
object_class->get_property = gtk_combo_box_entry_get_property;
widget_class = (GtkWidgetClass *)klass;
widget_class->mnemonic_activate = gtk_combo_box_entry_mnemonic_activate;
widget_class->grab_focus = gtk_combo_box_entry_grab_focus;
container_class = (GtkContainerClass *)klass;
container_class->add = gtk_combo_box_entry_add;
container_class->remove = gtk_combo_box_entry_remove;
combo_class = (GtkComboBoxClass *)klass;
combo_class->get_active_text = gtk_combo_box_entry_get_active_text;
g_object_class_install_property (object_class,
PROP_TEXT_COLUMN,
g_param_spec_int ("text-column",
P_("Text Column"),
P_("A column in the data source model to get the strings from"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
g_type_class_add_private ((GObjectClass *) klass,
sizeof (GtkComboBoxEntryPrivate));
}
static void
gtk_combo_box_entry_init (GtkComboBoxEntry *entry_box)
{
GtkWidget *entry;
entry_box->priv = GTK_COMBO_BOX_ENTRY_GET_PRIVATE (entry_box);
entry_box->priv->text_column = -1;
entry = gtk_entry_new ();
gtk_widget_show (entry);
gtk_container_add (GTK_CONTAINER (entry_box), entry);
entry_box->priv->text_renderer = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (entry_box),
entry_box->priv->text_renderer, TRUE);
gtk_combo_box_set_active (GTK_COMBO_BOX (entry_box), -1);
g_signal_connect (entry_box, "changed",
G_CALLBACK (gtk_combo_box_entry_active_changed), NULL);
g_signal_connect (entry_box, "notify::has-frame", G_CALLBACK (has_frame_changed), NULL);
}
static void
gtk_combo_box_entry_buildable_interface_init (GtkBuildableIface *iface)
{
iface->get_internal_child = gtk_combo_box_entry_buildable_get_internal_child;
}
static GObject *
gtk_combo_box_entry_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname)
{
if (strcmp (childname, "entry") == 0)
return G_OBJECT (gtk_bin_get_child (GTK_BIN (buildable)));
return NULL;
}
static void
gtk_combo_box_entry_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkComboBoxEntry *entry_box = GTK_COMBO_BOX_ENTRY (object);
switch (prop_id)
{
case PROP_TEXT_COLUMN:
gtk_combo_box_entry_set_text_column (entry_box,
g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_entry_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkComboBoxEntry *entry_box = GTK_COMBO_BOX_ENTRY (object);
switch (prop_id)
{
case PROP_TEXT_COLUMN:
g_value_set_int (value, entry_box->priv->text_column);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_combo_box_entry_add (GtkContainer *container,
GtkWidget *child)
{
GtkComboBoxEntry *entry_box = GTK_COMBO_BOX_ENTRY (container);
if (!GTK_IS_ENTRY (child))
{
g_warning ("Attempting to add a widget with type %s to a GtkComboBoxEntry "
"(need an instance of GtkEntry or of a subclass)",
G_OBJECT_TYPE_NAME (child));
return;
}
GTK_CONTAINER_CLASS (gtk_combo_box_entry_parent_class)->add (container, child);
/* this flag is a hack to tell the entry to fill its allocation.
*/
GTK_ENTRY (child)->is_cell_renderer = TRUE;
g_signal_connect (child, "changed",
G_CALLBACK (gtk_combo_box_entry_contents_changed),
entry_box);
has_frame_changed (entry_box, NULL, NULL);
}
static void
gtk_combo_box_entry_remove (GtkContainer *container,
GtkWidget *child)
{
if (child && child == GTK_BIN (container)->child)
{
g_signal_handlers_disconnect_by_func (child,
gtk_combo_box_entry_contents_changed,
container);
GTK_ENTRY (child)->is_cell_renderer = FALSE;
}
GTK_CONTAINER_CLASS (gtk_combo_box_entry_parent_class)->remove (container, child);
}
static void
gtk_combo_box_entry_active_changed (GtkComboBox *combo_box,
gpointer user_data)
{
GtkComboBoxEntry *entry_box = GTK_COMBO_BOX_ENTRY (combo_box);
GtkTreeModel *model;
GtkTreeIter iter;
gchar *str = NULL;
if (gtk_combo_box_get_active_iter (combo_box, &iter))
{
GtkEntry *entry = GTK_ENTRY (GTK_BIN (combo_box)->child);
if (entry)
{
g_signal_handlers_block_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
model = gtk_combo_box_get_model (combo_box);
gtk_tree_model_get (model, &iter,
entry_box->priv->text_column, &str,
-1);
gtk_entry_set_text (entry, str);
g_free (str);
g_signal_handlers_unblock_by_func (entry,
gtk_combo_box_entry_contents_changed,
combo_box);
}
}
}
static void
has_frame_changed (GtkComboBoxEntry *entry_box,
GParamSpec *pspec,
gpointer data)
{
if (GTK_BIN (entry_box)->child)
{
gboolean has_frame;
g_object_get (entry_box, "has-frame", &has_frame, NULL);
gtk_entry_set_has_frame (GTK_ENTRY (GTK_BIN (entry_box)->child), has_frame);
}
}
static void
gtk_combo_box_entry_contents_changed (GtkEntry *entry,
gpointer user_data)
{
GtkComboBox *combo_box = GTK_COMBO_BOX (user_data);
/*
* Fixes regression reported in bug #574059. The old functionality relied on
* bug #572478. As a bugfix, we now emit the "changed" signal ourselves
* when the selection was already set to -1.
*/
if (gtk_combo_box_get_active(combo_box) == -1)
g_signal_emit_by_name (combo_box, "changed");
else
gtk_combo_box_set_active (combo_box, -1);
}
/* public API */
/**
* gtk_combo_box_entry_new:
*
* Creates a new #GtkComboBoxEntry which has a #GtkEntry as child. After
* construction, you should set a model using gtk_combo_box_set_model() and a
* text column using gtk_combo_box_entry_set_text_column().
*
* Return value: A new #GtkComboBoxEntry.
*
* Since: 2.4
*
* Deprecated: 2.24: Use gtk_combo_box_new_with_entry() instead
*/
GtkWidget *
gtk_combo_box_entry_new (void)
{
return g_object_new (gtk_combo_box_entry_get_type (), NULL);
}
/**
* gtk_combo_box_entry_new_with_model:
* @model: A #GtkTreeModel.
* @text_column: A column in @model to get the strings from.
*
* Creates a new #GtkComboBoxEntry which has a #GtkEntry as child and a list
* of strings as popup. You can get the #GtkEntry from a #GtkComboBoxEntry
* using GTK_ENTRY (GTK_BIN (combo_box_entry)->child). To add and remove
* strings from the list, just modify @model using its data manipulation
* API.
*
* Return value: A new #GtkComboBoxEntry.
*
* Since: 2.4
*
* Deprecated: 2.24: Use gtk_combo_box_new_with_model_and_entry() instead
*/
GtkWidget *
gtk_combo_box_entry_new_with_model (GtkTreeModel *model,
gint text_column)
{
GtkWidget *ret;
g_return_val_if_fail (GTK_IS_TREE_MODEL (model), NULL);
g_return_val_if_fail (text_column >= 0, NULL);
g_return_val_if_fail (text_column < gtk_tree_model_get_n_columns (model), NULL);
ret = g_object_new (gtk_combo_box_entry_get_type (),
"model", model,
"text-column", text_column,
NULL);
return ret;
}
/**
* gtk_combo_box_entry_set_text_column:
* @entry_box: A #GtkComboBoxEntry.
* @text_column: A column in @model to get the strings from.
*
* Sets the model column which @entry_box should use to get strings from
* to be @text_column.
*
* Since: 2.4
*
* Deprecated: 2.24: Use gtk_combo_box_set_entry_text_column() instead
*/
void
gtk_combo_box_entry_set_text_column (GtkComboBoxEntry *entry_box,
gint text_column)
{
GtkTreeModel *model = gtk_combo_box_get_model (GTK_COMBO_BOX (entry_box));
g_return_if_fail (text_column >= 0);
g_return_if_fail (model == NULL || text_column < gtk_tree_model_get_n_columns (model));
entry_box->priv->text_column = text_column;
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (entry_box),
entry_box->priv->text_renderer,
"text", text_column,
NULL);
}
/**
* gtk_combo_box_entry_get_text_column:
* @entry_box: A #GtkComboBoxEntry.
*
* Returns the column which @entry_box is using to get the strings from.
*
* Return value: A column in the data source model of @entry_box.
*
* Since: 2.4
*
* Deprecated: 2.24: Use gtk_combo_box_get_entry_text_column() instead
*/
gint
gtk_combo_box_entry_get_text_column (GtkComboBoxEntry *entry_box)
{
g_return_val_if_fail (GTK_IS_COMBO_BOX_ENTRY (entry_box), 0);
return entry_box->priv->text_column;
}
static gboolean
gtk_combo_box_entry_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
GtkBin *entry_box = GTK_BIN (widget);
if (entry_box->child)
gtk_widget_grab_focus (entry_box->child);
return TRUE;
}
static void
gtk_combo_box_entry_grab_focus (GtkWidget *widget)
{
GtkBin *entry_box = GTK_BIN (widget);
if (entry_box->child)
gtk_widget_grab_focus (entry_box->child);
}
/* convenience API for simple text combos */
/**
* gtk_combo_box_entry_new_text:
*
* Convenience function which constructs a new editable text combo box, which
* is a #GtkComboBoxEntry just displaying strings. If you use this function to
* create a text combo box, you should only manipulate its data source with
* the following convenience functions: gtk_combo_box_append_text(),
* gtk_combo_box_insert_text(), gtk_combo_box_prepend_text() and
* gtk_combo_box_remove_text().
*
* Return value: A new text #GtkComboBoxEntry.
*
* Since: 2.4
*/
GtkWidget *
gtk_combo_box_entry_new_text (void)
{
GtkWidget *entry_box;
GtkListStore *store;
store = gtk_list_store_new (1, G_TYPE_STRING);
entry_box = gtk_combo_box_entry_new_with_model (GTK_TREE_MODEL (store), 0);
g_object_unref (store);
return entry_box;
}
static gchar *
gtk_combo_box_entry_get_active_text (GtkComboBox *combo_box)
{
GtkBin *combo = GTK_BIN (combo_box);
if (combo->child)
return g_strdup (gtk_entry_get_text (GTK_ENTRY (combo->child)));
return NULL;
}
#define __GTK_COMBO_BOX_ENTRY_C__
#include "gtkaliasdef.c"
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