wrapper/gtk_standalone/imi_gtkwin.cpp

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
 *
 * The contents of this file are subject to the terms of either the GNU Lesser
 * General Public License Version 2.1 only ("LGPL") or the Common Development and
 * Distribution License ("CDDL")(collectively, the "License"). You may not use this
 * file except in compliance with the License. You can obtain a copy of the CDDL at
 * http://www.opensource.org/licenses/cddl1.php and a copy of the LGPLv2.1 at
 * http://www.opensource.org/licenses/lgpl-license.php. See the License for the
 * specific language governing permissions and limitations under the License. When
 * distributing the software, include this License Header Notice in each file and
 * include the full text of the License in the License file as well as the
 * following notice:
 *
 * NOTICE PURSUANT TO SECTION 9 OF THE COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
 * (CDDL)
 * For Covered Software in this distribution, this License shall be governed by the
 * laws of the State of California (excluding conflict-of-law provisions).
 * Any litigation relating to this License shall be subject to the jurisdiction of
 * the Federal Courts of the Northern District of California and the state courts
 * of the State of California, with venue lying in Santa Clara County, California.
 *
 * Contributor(s):
 *
 * If you wish your version of this file to be governed by only the CDDL or only
 * the LGPL Version 2.1, indicate your decision by adding "[Contributor]" elects to
 * include this software in this distribution under the [CDDL or LGPL Version 2.1]
 * license." If you don't indicate a single choice of license, a recipient has the
 * option to distribute your version of this file under either the CDDL or the LGPL
 * Version 2.1, or to extend the choice of license to its licensees as provided
 * above. However, if you add LGPL Version 2.1 code and therefore, elected the LGPL
 * Version 2 license, then the option applies only if the new code is made subject
 * to such option by the copyright holder.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "imi_gtkwin.h"
#include "imi_view.h"
#include "imi_uiobjects.h"


const char *CGTKWinHandler::hanzi_image_file_name = "images/han.png";
const char *CGTKWinHandler::eng_image_file_name = "images/eng.png";
const char *CGTKWinHandler::cnpunc_image_file_name = "images/cnpunc.png";
const char *CGTKWinHandler::enpunc_image_file_name = "images/enpunc.png";
const char *CGTKWinHandler::fullwidth_image_file_name = "images/fullwidth.png";
const char *CGTKWinHandler::halfwidth_image_file_name = "images/halfwidth.png";

GtkWidget *CGTKWinHandler::hanzi_image = NULL;
GtkWidget *CGTKWinHandler::eng_image = NULL;
GtkWidget *CGTKWinHandler::cnpunc_image = NULL;
GtkWidget *CGTKWinHandler::enpunc_image = NULL;
GtkWidget *CGTKWinHandler::fullwidth_image = NULL;
GtkWidget *CGTKWinHandler::halfwidth_image = NULL;


static gint
key_press_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
    if (data != NULL) {
        unsigned keycode = event->keyval;
        unsigned keyvalue = event->keyval;
        if (keyvalue < 0x20 && keyvalue > 0x7E)
            keyvalue = 0;

        CIMIView* pview = (CIMIView*)(data);
        pview->onKeyEvent(keycode, keyvalue, event->state);
    }
    return 1;
}

static void
button_click_cn_en(GtkWidget* button, gpointer data)
{
    /*
    if (data != NULL) {
        CIMIView* pv = (CIMSAView*)data;
        unsigned int mask = 0;
        pv->switchCN(&mask);
        pv->updateWindows(mask);
    }
    */
}

static void
button_click_fullhalf_punc(GtkWidget* button, gpointer data)
{
    /*
    if (data != NULL)
      ((CIMSAView*)data)->switchFullPunc(NULL);
    */
}

static void
button_click_fullhalf_simbol(GtkWidget* button, gpointer data)
{
    /*
    if (data != NULL)
        ((CIMSAView*)data)->switchFullSimbol(NULL);
    */
}

CGTKWinHandler::CGTKWinHandler(CIMIView* pv) : mp_view(pv),
        CIMIWinHandler(), m_pWin(NULL), m_CandidataArea(NULL), m_PreeditArea(NULL),
        m_pLangButton(NULL), m_pPuncButton(NULL), m_pSimbButton(NULL)
{
    m_iconv = iconv_open("UTF-8", TWCHAR_ICONV_NAME);
    load_images();
}

CGTKWinHandler::~CGTKWinHandler()
{
    iconv_close(m_iconv);
    gtk_widget_unref(hanzi_image);
    gtk_widget_unref(eng_image);
    gtk_widget_unref(cnpunc_image);
    gtk_widget_unref(enpunc_image);
    gtk_widget_unref(fullwidth_image);
    gtk_widget_unref(halfwidth_image);
}

void
CGTKWinHandler::load_images()
{
    if (hanzi_image == NULL) {
        hanzi_image = gtk_image_new_from_file(hanzi_image_file_name);
        eng_image = gtk_image_new_from_file(eng_image_file_name);
        cnpunc_image = gtk_image_new_from_file(cnpunc_image_file_name);
        enpunc_image = gtk_image_new_from_file(enpunc_image_file_name);
        fullwidth_image = gtk_image_new_from_file(fullwidth_image_file_name);
        halfwidth_image = gtk_image_new_from_file(halfwidth_image_file_name);
    }
    gtk_widget_ref(hanzi_image);
    gtk_widget_ref(eng_image);
    gtk_widget_ref(cnpunc_image);
    gtk_widget_ref(enpunc_image);
    gtk_widget_ref(fullwidth_image);
    gtk_widget_ref(halfwidth_image);
}


void
CGTKWinHandler::updateStatus(int key, int value)
{
    switch (key) {
    case STATUS_ID_CN:          switchCN( value != 0 ); break;
    case STATUS_ID_FULLPUNC:    switchFullPunc( value != 0 ); break;
    case STATUS_ID_FULLSIMBOL:  switchFullSimbol( value != 0 ); break;
    }
}

void
CGTKWinHandler::switchCN(bool cn)
{
    gtk_container_remove(GTK_CONTAINER(m_pLangButton), (!cn)?hanzi_image:eng_image);
    gtk_container_add(GTK_CONTAINER(m_pLangButton), (cn)?hanzi_image:eng_image);
    gtk_widget_show_all(m_pLangButton);
}

void
CGTKWinHandler::switchFullPunc(bool full)
{
    gtk_container_remove(GTK_CONTAINER(m_pPuncButton), (!full)?cnpunc_image:enpunc_image);
    gtk_container_add(GTK_CONTAINER(m_pPuncButton), (full)?cnpunc_image:enpunc_image);
    gtk_widget_show_all(m_pPuncButton);
}

void
CGTKWinHandler::switchFullSimbol(bool full)
{
    gtk_container_remove(GTK_CONTAINER(m_pSimbButton), (!full)?fullwidth_image:halfwidth_image);
    gtk_container_add(GTK_CONTAINER(m_pSimbButton), (full)?fullwidth_image:halfwidth_image);
    gtk_widget_show_all(m_pSimbButton);
}

bool
CGTKWinHandler::createWindows()
{
    GtkWidget *window;
    GtkWidget *chedit;
    GtkWidget *button;
    GtkWidget *box, *box1;
    GtkWidget *img;
    GtkWidget *frame;

    m_pWin = window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_container_set_border_width(GTK_CONTAINER(window), 2);
    box = gtk_vbox_new(FALSE, 1);
    gtk_container_add(GTK_CONTAINER(window), box);

    frame = gtk_frame_new(NULL);
    m_CandidataArea = gtk_label_new("/");
    gtk_container_add(GTK_CONTAINER(frame), m_CandidataArea);
    gtk_label_set_justify(GTK_LABEL(m_CandidataArea), GTK_JUSTIFY_LEFT);
    gtk_box_pack_end(GTK_BOX(box), frame, TRUE, TRUE, 1);

    frame = gtk_frame_new(NULL);
    m_PreeditArea = gtk_text_view_new();
    gtk_text_view_set_editable(GTK_TEXT_VIEW(m_PreeditArea), false);
    gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(m_PreeditArea), true);
    GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW (m_PreeditArea));
    gtk_text_buffer_set_text(buffer, "", -1);
    GtkTextIter ti;
    gtk_text_buffer_get_iter_at_offset(buffer, &ti, 0);
    gtk_text_buffer_place_cursor(buffer, &ti);

    gtk_container_add(GTK_CONTAINER(frame), m_PreeditArea);
    gtk_box_pack_end(GTK_BOX(box), frame, TRUE, TRUE, 1);

    box1 = gtk_hbox_new(FALSE, 1);
    gtk_box_pack_start(GTK_BOX(box), box1, TRUE, TRUE, 1);

    frame = gtk_frame_new(NULL);
    chedit = gtk_label_new("");
    gtk_container_add(GTK_CONTAINER(frame), chedit);
    gtk_label_set_justify(GTK_LABEL(chedit), GTK_JUSTIFY_LEFT);
    gtk_box_pack_start(GTK_BOX(box1), frame, TRUE, TRUE, 1);

    m_pSimbButton = button = gtk_button_new();
    gtk_container_add(GTK_CONTAINER(button), halfwidth_image);
    gtk_box_pack_end(GTK_BOX(box1), button, FALSE, FALSE, 2);
    gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(button_click_fullhalf_simbol), mp_view);

    m_pPuncButton = button = gtk_button_new();
    gtk_container_add(GTK_CONTAINER(button), cnpunc_image);
    gtk_box_pack_end(GTK_BOX(box1), button, FALSE, FALSE, 2);
    gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(button_click_fullhalf_punc), mp_view);

    m_pLangButton = button = gtk_button_new();
    gtk_container_add(GTK_CONTAINER(button), hanzi_image);
    gtk_box_pack_end(GTK_BOX(box1), button, FALSE, FALSE, 2);
    gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(button_click_cn_en), mp_view);

    gtk_window_set_decorated((GtkWindow*)window, FALSE);
    gtk_signal_connect(GTK_OBJECT(window), "key_press_event", GTK_SIGNAL_FUNC(key_press_cb), mp_view);
    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);

    g_signal_connect(G_OBJECT(m_pWin), "delete_event", G_CALLBACK(gtk_main_quit), NULL);
    gtk_widget_show_all(m_pWin);

    return true;
}

void
CGTKWinHandler::updatePreedit(const IPreeditString* ppd)
{
    TIConvSrcPtr src = (TIConvSrcPtr)(ppd->string());
    size_t srclen = (ppd->size()+1)*sizeof(TWCHAR);
    char * dst = m_buf;
    size_t dstlen = sizeof(m_buf)-1;
    iconv(m_iconv, &src, &srclen, &dst, &dstlen);

    //gtk_widget_grab_focus(m_PreeditArea);
    GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW (m_PreeditArea));
    gtk_text_buffer_set_text (buffer, m_buf, -1);
    GtkTextIter ti;
    gtk_text_buffer_get_iter_at_offset(buffer, &ti, ppd->caret());
    gtk_text_buffer_place_cursor(buffer, &ti);
}

void
CGTKWinHandler::updateCandidates(const ICandidateList* pcl)
{
    wstring cand_str;
    for (int i=0, sz=pcl->size(); i < sz; ++i) {
        const TWCHAR* pcand = pcl->candiString(i);
        if (pcand == NULL) break;
        cand_str += (i==9)?'0':TWCHAR('1' + i);
        cand_str += TWCHAR('.');
        cand_str += pcand;
        cand_str += TWCHAR(' ');
    }

    TIConvSrcPtr src = (TIConvSrcPtr)(cand_str.c_str());
    size_t srclen = (cand_str.size()+1)*sizeof(TWCHAR);
    char * dst = m_buf;
    size_t dstlen = sizeof(m_buf) - 1;
    iconv(m_iconv, &src, &srclen, &dst, &dstlen);
    gtk_label_set(GTK_LABEL(m_CandidataArea), m_buf);
}