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** Copyright (C) 2003-2006 Teus Benschop.
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** GNU General Public License for more details.
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#include "dialoglinecutter.h"
#include "session.h"
#include "generalconfig.h"
#include "projectutils.h"
#include "usfmtools.h"
#include "utilities.h"
#include "progresswindow.h"
#include "gtkwrappers.h"

LineCutterDialog::LineCutterDialog (int dummy)
  linecutterdialog = gtk_dialog_new ();
  gtk_window_set_title (GTK_WINDOW (linecutterdialog), "Line cutter for Hebrew text");
  gtk_window_set_position (GTK_WINDOW (linecutterdialog), GTK_WIN_POS_CENTER_ON_PARENT);
  gtk_window_set_type_hint (GTK_WINDOW (linecutterdialog), GDK_WINDOW_TYPE_HINT_DIALOG);

  dialog_vbox1 = GTK_DIALOG (linecutterdialog)->vbox;
  gtk_widget_show (dialog_vbox1);

  vbox1 = gtk_vbox_new (FALSE, 4);
  gtk_widget_show (vbox1);
  gtk_box_pack_start (GTK_BOX (dialog_vbox1), vbox1, TRUE, TRUE, 0);

  label1 = gtk_label_new ("This tool assumes that the project now opened is Hebrew text, or any other right-to-left text, with visual ordering. It will cut the line in pieces no longer than a certain amount of characters.");
  gtk_widget_show (label1);
  gtk_box_pack_start (GTK_BOX (vbox1), label1, FALSE, FALSE, 0);
  gtk_label_set_line_wrap (GTK_LABEL (label1), TRUE);
  gtk_misc_set_alignment (GTK_MISC (label1), 0, 0.5);

  hbox1 = gtk_hbox_new (FALSE, 3);
  gtk_widget_show (hbox1);
  gtk_box_pack_start (GTK_BOX (vbox1), hbox1, FALSE, FALSE, 0);

  label2 = gtk_label_new ("One line will have no more than");
  gtk_widget_show (label2);
  gtk_box_pack_start (GTK_BOX (hbox1), label2, FALSE, FALSE, 0);

  Session session (0);

  spinbutton1_adj = gtk_adjustment_new (session.line_cutter_for_hebrew_text_characters(), 10, 500, 1, 10, 10);
  spinbutton1 = gtk_spin_button_new (GTK_ADJUSTMENT (spinbutton1_adj), 1, 0);
  gtk_widget_show (spinbutton1);
  gtk_box_pack_start (GTK_BOX (hbox1), spinbutton1, TRUE, TRUE, 0);
  gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton1), TRUE);

  label3 = gtk_label_new ("characters");
  gtk_widget_show (label3);
  gtk_box_pack_start (GTK_BOX (hbox1), label3, FALSE, FALSE, 0);

  label4 = gtk_label_new ("Choose OK to cut the lines.");
  gtk_widget_show (label4);
  gtk_box_pack_start (GTK_BOX (vbox1), label4, FALSE, FALSE, 0);
  gtk_misc_set_alignment (GTK_MISC (label4), 0, 0.5);

  dialog_action_area1 = GTK_DIALOG (linecutterdialog)->action_area;
  gtk_widget_show (dialog_action_area1);
  gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog_action_area1), GTK_BUTTONBOX_END);

  cancelbutton1 = gtk_button_new_from_stock ("gtk-cancel");
  gtk_widget_show (cancelbutton1);
  gtk_dialog_add_action_widget (GTK_DIALOG (linecutterdialog), cancelbutton1, GTK_RESPONSE_CANCEL);

  okbutton1 = gtk_button_new_from_stock ("gtk-ok");
  gtk_widget_show (okbutton1);
  gtk_dialog_add_action_widget (GTK_DIALOG (linecutterdialog), okbutton1, GTK_RESPONSE_OK);

  g_signal_connect ((gpointer) okbutton1, "clicked",
                    G_CALLBACK (on_okbutton1_clicked),

  gtk_widget_grab_default (okbutton1);

LineCutterDialog::~LineCutterDialog ()
  gtk_widget_destroy (linecutterdialog);

int LineCutterDialog::run ()
  return gtk_dialog_run (GTK_DIALOG (linecutterdialog));

void LineCutterDialog::on_okbutton1_clicked (GtkButton *button, gpointer user_data)
  ((LineCutterDialog *) user_data)->on_ok();

void LineCutterDialog::on_ok ()
  // Get and save the length to cut at.
  unsigned int cut_at = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (spinbutton1));
  Session session (0);
  session.line_cutter_for_hebrew_text_characters (cut_at);

  // If the project is empty, bail out.  
  GeneralConfiguration genconfig (0);
  ustring project = genconfig.project();
  if (project.empty()) return;

  // Give a double warning.  
  if (gtkw_dialog_question (linecutterdialog, "Are you sure you wish to cut the lines?") == GTK_RESPONSE_NO)
  if (gtkw_dialog_question (linecutterdialog, "This will permanently modify your project.\nThe changes cannot be undone.\nAre you sure?") == GTK_RESPONSE_NO)

  // Get and go through all books in this project.
  vector<ustring> books = project_get_books (project);
  ProgressWindow progresswindow ("Cutting lines", false);
  progresswindow.set_iterate (0, 1, books.size());
  for (unsigned bk = 0; bk < books.size(); bk++) {
    progresswindow.iterate ();

    // Store the cut lines.
    vector <ustring> cutlines;
    // Get and go through all lines in this book.
    vector <ustring> lines = project_retrieve_book (project, books[bk]);
    for (unsigned int ln = 0; ln < lines.size(); ln++) {
      // Only cut a line if it is too long.
      if (lines[ln].length() > cut_at) {
        // Get the line and extract the marker, including the verse number if 
        // relevant.
        ustring line = lines[ln];
        ustring marker = usfm_extract_marker (line);
        if (marker == "v") {
          ustring verse = number_in_string (line);
          marker.append (" " + verse);
          line.erase (0, verse.length() + 1);

        // Reverse the order of the characters for easier processing.
        line = string_reverse (line);
        // Parse the text into its separate words.
        Parse parse (line, false);
        // Build new lines, the length of each not exceeding the maximum 
        // character count.
        unsigned int newline_count = 0;
        ustring newline;
        while (!parse.words.empty()) {
          // If the line gets too long, store it.
          if (newline.length() + parse.words[0].length() > cut_at) {
            assemble (newline_count, marker, newline, cutlines);
          // If one single words is too long, still store it - nothing can be done.
          } else if (parse.words[0].length() > cut_at) {
            newline = parse.words[0];
            parse.words.erase (parse.words.begin());
            assemble (newline_count, marker, newline, cutlines);
          // In all other cases, add the word to the line.
          } else {
            if (!newline.empty()) 
              newline.append (" ");
            newline.append (parse.words[0]);
            parse.words.erase (parse.words.begin());
        if (!newline.empty())
          assemble (newline_count, marker, newline, cutlines);     

      // If the line is not too long, just store it.  
      } else {
        cutlines.push_back (lines[ln]);
    // Store the processed lines into the book again.
    CategorizeChapterVerse ccv (cutlines);
    project_store_book (project, books[bk], ccv);

void LineCutterDialog::assemble (unsigned int& newlinecount, ustring& marker, 
                                 ustring& newline, vector<ustring>& cutlines)
  if (newlinecount > 0) marker = "nb";
  newline = string_reverse (newline);
  newline.insert (0, "\\" + marker + " ");
  cutlines.push_back (newline);

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