forked from AuroraMiddleware/gtk
0bfa8fe50d
Tue Oct 22 15:13:59 2002 Owen Taylor <otaylor@redhat.com>
* gtk/gtkimmulticontext.c: Include config.h
(#96441, Morten Welinder)
507 lines
16 KiB
C
507 lines
16 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2000 Red Hat, Inc.
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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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <locale.h>
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#include "gtkimmulticontext.h"
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#include "gtkimmodule.h"
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#include "gtkradiomenuitem.h"
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static void gtk_im_multicontext_class_init (GtkIMMulticontextClass *class);
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static void gtk_im_multicontext_init (GtkIMMulticontext *im_multicontext);
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static void gtk_im_multicontext_finalize (GObject *object);
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static void gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
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GtkIMContext *slave,
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gboolean finalizing);
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static void gtk_im_multicontext_set_client_window (GtkIMContext *context,
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GdkWindow *window);
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static void gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
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gchar **str,
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PangoAttrList **attrs,
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gint *cursor_pos);
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static gboolean gtk_im_multicontext_filter_keypress (GtkIMContext *context,
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GdkEventKey *event);
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static void gtk_im_multicontext_focus_in (GtkIMContext *context);
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static void gtk_im_multicontext_focus_out (GtkIMContext *context);
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static void gtk_im_multicontext_reset (GtkIMContext *context);
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static void gtk_im_multicontext_set_cursor_location (GtkIMContext *context,
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GdkRectangle *area);
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static void gtk_im_multicontext_set_use_preedit (GtkIMContext *context,
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gboolean use_preedit);
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static gboolean gtk_im_multicontext_get_surrounding (GtkIMContext *context,
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gchar **text,
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gint *cursor_index);
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static void gtk_im_multicontext_set_surrounding (GtkIMContext *context,
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const char *text,
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gint len,
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gint cursor_index);
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static void gtk_im_multicontext_preedit_start_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext);
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static void gtk_im_multicontext_preedit_end_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext);
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static void gtk_im_multicontext_preedit_changed_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext);
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static void gtk_im_multicontext_commit_cb (GtkIMContext *slave,
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const gchar *str,
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GtkIMMulticontext *multicontext);
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static gboolean gtk_im_multicontext_retrieve_surrounding_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext);
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static gboolean gtk_im_multicontext_delete_surrounding_cb (GtkIMContext *slave,
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gint offset,
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gint n_chars,
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GtkIMMulticontext *multicontext);
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static GtkIMContextClass *parent_class;
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static const gchar *global_context_id = NULL;
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GType
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gtk_im_multicontext_get_type (void)
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{
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static GType im_multicontext_type = 0;
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if (!im_multicontext_type)
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{
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static const GTypeInfo im_multicontext_info =
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{
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sizeof (GtkIMMulticontextClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gtk_im_multicontext_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GtkIMMulticontext),
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0, /* n_preallocs */
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(GInstanceInitFunc) gtk_im_multicontext_init,
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};
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im_multicontext_type =
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g_type_register_static (GTK_TYPE_IM_CONTEXT, "GtkIMMulticontext",
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&im_multicontext_info, 0);
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}
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return im_multicontext_type;
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}
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static void
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gtk_im_multicontext_class_init (GtkIMMulticontextClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkIMContextClass *im_context_class = GTK_IM_CONTEXT_CLASS (class);
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parent_class = g_type_class_peek_parent (class);
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im_context_class->set_client_window = gtk_im_multicontext_set_client_window;
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im_context_class->get_preedit_string = gtk_im_multicontext_get_preedit_string;
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im_context_class->filter_keypress = gtk_im_multicontext_filter_keypress;
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im_context_class->focus_in = gtk_im_multicontext_focus_in;
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im_context_class->focus_out = gtk_im_multicontext_focus_out;
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im_context_class->reset = gtk_im_multicontext_reset;
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im_context_class->set_cursor_location = gtk_im_multicontext_set_cursor_location;
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im_context_class->set_use_preedit = gtk_im_multicontext_set_use_preedit;
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im_context_class->set_surrounding = gtk_im_multicontext_set_surrounding;
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im_context_class->get_surrounding = gtk_im_multicontext_get_surrounding;
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gobject_class->finalize = gtk_im_multicontext_finalize;
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}
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static void
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gtk_im_multicontext_init (GtkIMMulticontext *multicontext)
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{
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multicontext->slave = NULL;
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}
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/**
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* gtk_im_multicontext_new:
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*
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* Creates a new #GtkIMMulticontext.
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*
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* Returns: a new #GtkIMMulticontext.
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**/
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GtkIMContext *
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gtk_im_multicontext_new (void)
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{
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return g_object_new (GTK_TYPE_IM_MULTICONTEXT, NULL);
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}
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static void
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gtk_im_multicontext_finalize (GObject *object)
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{
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gtk_im_multicontext_set_slave (GTK_IM_MULTICONTEXT (object), NULL, TRUE);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gtk_im_multicontext_set_slave (GtkIMMulticontext *multicontext,
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GtkIMContext *slave,
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gboolean finalizing)
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{
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gboolean need_preedit_changed = FALSE;
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if (multicontext->slave)
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{
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if (!finalizing)
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gtk_im_context_reset (multicontext->slave);
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g_signal_handlers_disconnect_by_func (multicontext->slave,
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gtk_im_multicontext_preedit_start_cb,
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multicontext);
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g_signal_handlers_disconnect_by_func (multicontext->slave,
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gtk_im_multicontext_preedit_end_cb,
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multicontext);
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g_signal_handlers_disconnect_by_func (multicontext->slave,
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gtk_im_multicontext_preedit_changed_cb,
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multicontext);
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g_signal_handlers_disconnect_by_func (multicontext->slave,
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gtk_im_multicontext_commit_cb,
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multicontext);
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g_object_unref (multicontext->slave);
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multicontext->slave = NULL;
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if (!finalizing)
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need_preedit_changed = TRUE;
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}
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multicontext->slave = slave;
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if (multicontext->slave)
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{
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g_object_ref (multicontext->slave);
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g_signal_connect (multicontext->slave, "preedit_start",
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G_CALLBACK (gtk_im_multicontext_preedit_start_cb),
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multicontext);
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g_signal_connect (multicontext->slave, "preedit_end",
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G_CALLBACK (gtk_im_multicontext_preedit_end_cb),
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multicontext);
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g_signal_connect (multicontext->slave, "preedit_changed",
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G_CALLBACK (gtk_im_multicontext_preedit_changed_cb),
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multicontext);
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g_signal_connect (multicontext->slave, "commit",
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G_CALLBACK (gtk_im_multicontext_commit_cb),
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multicontext);
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g_signal_connect (multicontext->slave, "retrieve_surrounding",
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G_CALLBACK (gtk_im_multicontext_retrieve_surrounding_cb),
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multicontext);
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g_signal_connect (multicontext->slave, "delete_surrounding",
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G_CALLBACK (gtk_im_multicontext_delete_surrounding_cb),
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multicontext);
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if (multicontext->client_window)
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gtk_im_context_set_client_window (slave, multicontext->client_window);
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}
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if (need_preedit_changed)
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g_signal_emit_by_name (multicontext, "preedit_changed");
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}
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static GtkIMContext *
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gtk_im_multicontext_get_slave (GtkIMMulticontext *multicontext)
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{
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if (!multicontext->slave)
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{
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GtkIMContext *slave;
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if (!global_context_id)
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{
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const char *locale;
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#ifdef HAVE_LC_MESSAGES
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locale = setlocale (LC_MESSAGES, NULL);
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#else
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locale = setlocale (LC_CTYPE, NULL);
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#endif
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global_context_id = _gtk_im_module_get_default_context_id (locale);
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}
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slave = _gtk_im_module_create (global_context_id);
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gtk_im_multicontext_set_slave (multicontext, slave, FALSE);
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g_object_unref (slave);
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multicontext->context_id = global_context_id;
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}
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return multicontext->slave;
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}
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static void
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gtk_im_multicontext_set_client_window (GtkIMContext *context,
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GdkWindow *window)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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multicontext->client_window = window;
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if (slave)
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gtk_im_context_set_client_window (slave, window);
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}
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static void
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gtk_im_multicontext_get_preedit_string (GtkIMContext *context,
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gchar **str,
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PangoAttrList **attrs,
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gint *cursor_pos)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_get_preedit_string (slave, str, attrs, cursor_pos);
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else
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{
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if (str)
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*str = g_strdup ("");
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if (attrs)
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*attrs = pango_attr_list_new ();
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}
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}
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static gboolean
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gtk_im_multicontext_filter_keypress (GtkIMContext *context,
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GdkEventKey *event)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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return gtk_im_context_filter_keypress (slave, event);
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else
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return FALSE;
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}
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static void
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gtk_im_multicontext_focus_in (GtkIMContext *context)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave;
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/* If the global context type is different from the context we were
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* using before, get rid of the old slave and create a new one
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* for the new global context type.
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*/
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if (!multicontext->context_id ||
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strcmp (global_context_id, multicontext->context_id) != 0)
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gtk_im_multicontext_set_slave (multicontext, NULL, FALSE);
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slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_focus_in (slave);
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}
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static void
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gtk_im_multicontext_focus_out (GtkIMContext *context)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_focus_out (slave);
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}
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static void
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gtk_im_multicontext_reset (GtkIMContext *context)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_reset (slave);
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}
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static void
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gtk_im_multicontext_set_cursor_location (GtkIMContext *context,
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GdkRectangle *area)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_set_cursor_location (slave, area);
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}
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static void
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gtk_im_multicontext_set_use_preedit (GtkIMContext *context,
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gboolean use_preedit)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_set_use_preedit (slave, use_preedit);
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}
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static gboolean
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gtk_im_multicontext_get_surrounding (GtkIMContext *context,
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gchar **text,
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gint *cursor_index)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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return gtk_im_context_get_surrounding (slave, text, cursor_index);
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else
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{
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if (text)
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*text = NULL;
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if (cursor_index)
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*cursor_index = 0;
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return FALSE;
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}
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}
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static void
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gtk_im_multicontext_set_surrounding (GtkIMContext *context,
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const char *text,
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gint len,
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gint cursor_index)
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{
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GtkIMMulticontext *multicontext = GTK_IM_MULTICONTEXT (context);
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GtkIMContext *slave = gtk_im_multicontext_get_slave (multicontext);
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if (slave)
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gtk_im_context_set_surrounding (slave, text, len, cursor_index);
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}
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static void
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gtk_im_multicontext_preedit_start_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext)
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{
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g_signal_emit_by_name (multicontext, "preedit_start");
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}
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static void
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gtk_im_multicontext_preedit_end_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext)
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{
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g_signal_emit_by_name (multicontext, "preedit_end");
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}
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static void
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gtk_im_multicontext_preedit_changed_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext)
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{
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g_signal_emit_by_name (multicontext, "preedit_changed");
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}
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static void
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gtk_im_multicontext_commit_cb (GtkIMContext *slave,
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const gchar *str,
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GtkIMMulticontext *multicontext)
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{
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g_signal_emit_by_name (multicontext, "commit", str);;
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}
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static gboolean
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gtk_im_multicontext_retrieve_surrounding_cb (GtkIMContext *slave,
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GtkIMMulticontext *multicontext)
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{
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gboolean result;
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g_signal_emit_by_name (multicontext, "retrieve_surrounding", &result);
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return result;
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}
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static gboolean
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gtk_im_multicontext_delete_surrounding_cb (GtkIMContext *slave,
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gint offset,
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gint n_chars,
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GtkIMMulticontext *multicontext)
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{
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gboolean result;
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g_signal_emit_by_name (multicontext, "delete_surrounding",
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offset, n_chars, &result);
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return result;
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}
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static void
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activate_cb (GtkWidget *menuitem,
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GtkIMMulticontext *context)
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{
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if (GTK_CHECK_MENU_ITEM (menuitem)->active)
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{
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const gchar *id = g_object_get_data (G_OBJECT (menuitem), "gtk-context-id");
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gtk_im_context_reset (GTK_IM_CONTEXT (context));
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global_context_id = id;
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gtk_im_multicontext_set_slave (context, NULL, FALSE);
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}
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}
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/**
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* gtk_im_multicontext_append_menuitems:
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* @context: a #GtkIMMultiContext
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* @menushell: a #GtkMenuShell
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*
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* Add menuitems for various available input methods to a menu;
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* the menuitems, when selected, will switch the input method
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* for the context and the global default input method.
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**/
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void
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gtk_im_multicontext_append_menuitems (GtkIMMulticontext *context,
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GtkMenuShell *menushell)
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{
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const GtkIMContextInfo **contexts;
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guint n_contexts, i;
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GSList *group = NULL;
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_gtk_im_module_list (&contexts, &n_contexts);
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for (i=0; i < n_contexts; i++)
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{
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GtkWidget *menuitem;
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menuitem = gtk_radio_menu_item_new_with_label (group,
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contexts[i]->context_name);
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if ((global_context_id == NULL && group == NULL) ||
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(global_context_id &&
|
|
strcmp (contexts[i]->context_id, global_context_id) == 0))
|
|
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (menuitem),
|
|
TRUE);
|
|
|
|
group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (menuitem));
|
|
|
|
g_object_set_data (G_OBJECT (menuitem), "gtk-context-id",
|
|
(char *)contexts[i]->context_id);
|
|
g_signal_connect (menuitem, "activate",
|
|
G_CALLBACK (activate_cb), context);
|
|
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (menushell, menuitem);
|
|
}
|
|
|
|
g_free (contexts);
|
|
}
|
|
|