mainwindow.cc 20.5 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
/* $Id$
 *
 * Copyright (c) 2002  Daniel Elstner  <daniel.elstner@gmx.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License VERSION 2 as
 * published by the Free Software Foundation.  You are not allowed to
 * use any other version of the license; unless you got the explicit
 * permission from the author to do so.
 *
 * This program 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 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
 */
daniel_e's avatar
daniel_e committed
20 21 22 23 24 25 26 27

#include "mainwindow.h"
#include "filelist.h"
#include "pcreshell.h"
#include "stringutils.h"

#include <iostream>
#include <memory>
28
#include <glib.h>
daniel_e's avatar
daniel_e committed
29 30 31 32 33 34 35 36
#include <gtkmm.h>

#include <config.h>


namespace
{

37 38
const char regexxer_icon_filename[] = REGEXXER_DATADIR G_DIR_SEPARATOR_S
                                      "pixmaps" G_DIR_SEPARATOR_S "regexxer.png";
daniel_e's avatar
daniel_e committed
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

typedef Glib::RefPtr<Regexxer::FileBuffer> FileBufferPtr;


class ImageButton : public Gtk::Button
{
public:
  explicit ImageButton(const Gtk::StockID& stock_id);
  virtual ~ImageButton();
};

class CustomButton : public Gtk::Button
{
public:
  CustomButton(const Gtk::StockID& stock_id, const Glib::ustring& label, bool mnemonic = false);
  virtual ~CustomButton();
};


ImageButton::ImageButton(const Gtk::StockID& stock_id)
{
  Gtk::Image *const image = new Gtk::Image(stock_id, Gtk::ICON_SIZE_BUTTON);
  add(*Gtk::manage(image));
  image->show();
}

ImageButton::~ImageButton()
{}


CustomButton::CustomButton(const Gtk::StockID& stock_id, const Glib::ustring& label, bool mnemonic)
{
  using namespace Gtk;

  Alignment *const alignment = new Alignment(0.5, 0.5, 0.0, 0.0);
  add(*manage(alignment));

  HBox *const hbox = new HBox(false, 3);
  alignment->add(*manage(hbox));

  hbox->pack_start(*manage(new Image(stock_id, ICON_SIZE_BUTTON)), PACK_SHRINK);
  hbox->pack_start(*manage(new Label(label, mnemonic)),            PACK_SHRINK);

  show_all_children();
}

CustomButton::~CustomButton()
{}

void dummy_handler()
{
  std::cout << "foo!\n";
}

} // anonymous namespace


namespace Regexxer
{

MainWindow::MainWindow()
:
101 102
  toolbutton_save_      (0),
  toolbutton_save_all_  (0),
daniel_e's avatar
daniel_e committed
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
  entry_folder_         (0),
  entry_pattern_        (0),
  button_recursive_     (0),
  button_hidden_        (0),
  entry_regex_          (0),
  entry_substitution_   (0),
  button_multiple_      (0),
  button_caseless_      (0),
  filelist_             (0),
  textview_             (0),
  entry_preview_        (0),
  button_prev_file_     (0),
  button_prev_          (0),
  button_next_          (0),
  button_next_file_     (0),
  button_replace_       (0),
  button_replace_file_  (0),
  button_replace_all_   (0)
{
  using namespace Gtk;

  try
  {
126
    set_icon(Gdk::Pixbuf::create_from_file(regexxer_icon_filename));
daniel_e's avatar
daniel_e committed
127
  }
128
  catch(const Glib::Error& error)
daniel_e's avatar
daniel_e committed
129
  {
130 131
    const Glib::ustring what = error.what();
    g_warning(what.c_str());
daniel_e's avatar
daniel_e committed
132 133 134 135 136
  }

  set_title_filename();
  set_default_size(600, 400);

137 138 139 140 141 142
  {
    std::auto_ptr<Paned> paned (new HPaned());

    // These two should be created first so that we can connect the contained objects.
    paned->pack1(*manage(create_left_pane()),  EXPAND);
    paned->pack2(*manage(create_right_pane()), EXPAND);
daniel_e's avatar
daniel_e committed
143

144 145
    Box *const vbox_main = new VBox();
    add(*manage(vbox_main));
daniel_e's avatar
daniel_e committed
146

147
    vbox_main->pack_start(*manage(create_toolbar()), PACK_SHRINK);
daniel_e's avatar
daniel_e committed
148

149 150 151
    Box *const vbox_interior = new VBox();
    vbox_main->pack_start(*manage(vbox_interior), PACK_EXPAND_WIDGET);
    vbox_interior->set_border_width(2);
daniel_e's avatar
daniel_e committed
152

153 154 155 156
    Box *const hbox_bottom = new HBox(false, 1);
    vbox_main->pack_start(*manage(hbox_bottom), PACK_SHRINK);
    hbox_bottom->pack_start(*manage(new ProgressBar()), PACK_SHRINK);
    hbox_bottom->pack_start(*manage(new Statusbar()), PACK_EXPAND_WIDGET);
daniel_e's avatar
daniel_e committed
157

158 159 160
    vbox_interior->pack_start(*manage(paned.release()), PACK_EXPAND_WIDGET);
    vbox_interior->pack_start(*manage(create_buttonbox()), PACK_SHRINK);
  }
daniel_e's avatar
daniel_e committed
161 162 163 164 165 166 167 168 169

  show_all_children();

  entry_folder_->set_text(Util::shorten_pathname(Glib::filename_to_utf8(Glib::get_current_dir())));
  entry_pattern_->set_text("*");
  button_recursive_->set_active(true);

  signal_hide().connect_notify(SigC::slot(*filelist_, &FileList::stop_find_files));

170 171 172 173 174 175
  filelist_->signal_switch_buffer.connect(
      SigC::slot(*this, &MainWindow::on_filelist_switch_buffer));

  filelist_->signal_bound_state_changed.connect(
      SigC::slot(*this, &MainWindow::on_filelist_bound_state_changed));

176 177 178
  filelist_->signal_match_count_changed.connect(
      SigC::slot(*this, &MainWindow::on_filelist_match_count_changed));

179 180
  filelist_->signal_modified_count_changed.connect(
      SigC::slot(*this, &MainWindow::on_filelist_modified_count_changed));
daniel_e's avatar
daniel_e committed
181 182 183 184 185 186 187 188 189
}

MainWindow::~MainWindow()
{}

Gtk::Widget* MainWindow::create_toolbar()
{
  using namespace Gtk;
  using namespace Gtk::Toolbar_Helpers;
190
  using SigC::slot;
daniel_e's avatar
daniel_e committed
191 192 193 194

  std::auto_ptr<Toolbar> toolbar (new Toolbar());
  ToolList& tools = toolbar->tools();

195
  tools.push_back(StockElem(Stock::SAVE, slot(*filelist_, &FileList::save_current_file)));
196 197
  toolbutton_save_ = tools.back().get_widget();

198
  tools.push_back(StockElem(StockID("regexxer-save-all"), slot(*filelist_, &FileList::save_all_files)));
199 200 201 202
  toolbutton_save_all_ = tools.back().get_widget();

  //tools.push_back(Space());
  //tools.push_back(StockElem(Stock::UNDO, &dummy_handler));
daniel_e's avatar
daniel_e committed
203 204 205
  tools.push_back(Space());
  tools.push_back(StockElem(Stock::PREFERENCES, &dummy_handler));
  tools.push_back(Space());
206
  tools.push_back(StockElem(Stock::QUIT, slot(*this, &Widget::hide)));
daniel_e's avatar
daniel_e committed
207 208 209

  toolbar->set_toolbar_style(TOOLBAR_BOTH_HORIZ);

210 211 212
  toolbutton_save_    ->set_sensitive(false);
  toolbutton_save_all_->set_sensitive(false);

daniel_e's avatar
daniel_e committed
213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362
  return toolbar.release();
}

Gtk::Widget* MainWindow::create_buttonbox()
{
  using namespace Gtk;
  using SigC::bind;
  using SigC::slot;

  std::auto_ptr<Box> buttonbox (new HBox(false, 10));
  buttonbox->set_border_width(2);

  Box *const box_action = new HBox(true, 5);
  buttonbox->pack_end(*manage(box_action), PACK_SHRINK);

  Box *const box_move = new HBox(true, 5);
  buttonbox->pack_end(*manage(box_move), PACK_SHRINK);

  button_prev_file_ = new ImageButton(Stock::GOTO_FIRST);
  box_move->pack_start(*manage(button_prev_file_));

  button_prev_ = new ImageButton(Stock::GO_BACK);
  box_move->pack_start(*manage(button_prev_));

  button_next_ = new ImageButton(Stock::GO_FORWARD);
  box_move->pack_start(*manage(button_next_));

  button_next_file_ = new ImageButton(Stock::GOTO_LAST);
  box_move->pack_start(*manage(button_next_file_));

  button_replace_ = new CustomButton(Stock::CONVERT, "_Replace", true);
  box_action->pack_start(*manage(button_replace_));

  button_replace_file_ = new CustomButton(Stock::CONVERT, "_This file", true);
  box_action->pack_start(*manage(button_replace_file_));

  button_replace_all_ = new CustomButton(Stock::CONVERT, "_All files", true);
  box_action->pack_start(*manage(button_replace_all_));

  button_prev_file_   ->set_sensitive(false);
  button_prev_        ->set_sensitive(false);
  button_next_        ->set_sensitive(false);
  button_next_file_   ->set_sensitive(false);
  button_replace_     ->set_sensitive(false);
  button_replace_file_->set_sensitive(false);
  button_replace_all_ ->set_sensitive(false);

  button_prev_file_   ->signal_clicked().connect(bind(slot(*this, &MainWindow::on_go_next_file), false));
  button_prev_        ->signal_clicked().connect(bind(slot(*this, &MainWindow::on_go_next),      false));
  button_next_        ->signal_clicked().connect(bind(slot(*this, &MainWindow::on_go_next),      true));
  button_next_file_   ->signal_clicked().connect(bind(slot(*this, &MainWindow::on_go_next_file), true));
  button_replace_     ->signal_clicked().connect(slot(*this, &MainWindow::on_replace));
  button_replace_file_->signal_clicked().connect(slot(*this, &MainWindow::on_replace_file));
  button_replace_all_ ->signal_clicked().connect(slot(*this, &MainWindow::on_replace_all));

  return buttonbox.release();
}

Gtk::Widget* MainWindow::create_left_pane()
{
  using namespace Gtk;

  std::auto_ptr<VBox> vbox (new VBox(false, 3));
  vbox->set_border_width(1);

  Table *const table = new Table(3, 2, false);
  vbox->pack_start(*manage(table), PACK_SHRINK);
  table->set_border_width(1);
  table->set_spacings(2);

  Button *const button_folder = new CustomButton(Stock::OPEN, "_Folder:", true);
  table->attach(*manage(button_folder), 0, 1, 0, 1, FILL, AttachOptions(0));
  button_folder->signal_clicked().connect(SigC::slot(*this, &MainWindow::on_select_folder));

  table->attach(*manage(new Label("Pattern:", 0.0, 0.5)), 0, 1, 1, 2, FILL, AttachOptions(0));
  table->attach(*manage(entry_folder_  = new Entry()), 1, 2, 0, 1, EXPAND|FILL, AttachOptions(0));
  table->attach(*manage(entry_pattern_ = new Entry()), 1, 2, 1, 2, EXPAND|FILL, AttachOptions(0));

  HBox *const hbox = new HBox(false, 5);
  table->attach(*manage(hbox), 0, 2, 2, 3, EXPAND|FILL, AttachOptions(0));

  button_recursive_ = new CheckButton("recursive");
  hbox->pack_start(*manage(button_recursive_), PACK_SHRINK);

  button_hidden_ = new CheckButton("hidden");
  hbox->pack_start(*manage(button_hidden_), PACK_SHRINK);

  Button *const button_find = new Button(Stock::FIND);
  hbox->pack_end(*manage(button_find), PACK_SHRINK);
  button_find->signal_clicked().connect(SigC::slot(*this, &MainWindow::on_find_files));

  Frame *const frame = new Frame();
  vbox->pack_start(*manage(frame), PACK_EXPAND_WIDGET);

  ScrolledWindow *const scrollwin = new ScrolledWindow();
  frame->add(*manage(scrollwin));

  filelist_ = new FileList();
  scrollwin->add(*manage(filelist_));
  scrollwin->set_policy(POLICY_AUTOMATIC, POLICY_ALWAYS);

  tooltips_.set_tip(*entry_folder_,     "The directory to be searched.");
  tooltips_.set_tip(*entry_pattern_,    "A filename pattern as used by the shell. "
                                        "Character classes [ab] and csh style "
                                        "brace expressions {a,b} are supported.");
  tooltips_.set_tip(*button_recursive_, "recurse into subdirectories");
  tooltips_.set_tip(*button_hidden_,    "also find hidden files");

  return vbox.release();
}

Gtk::Widget* MainWindow::create_right_pane()
{
  using namespace Gtk;

  std::auto_ptr<VBox> vbox (new VBox(false, 3));
  vbox->set_border_width(1);

  Table *const table = new Table(2, 3, false);
  vbox->pack_start(*manage(table), PACK_SHRINK);
  table->set_border_width(1);
  table->set_spacings(2);

  table->attach(*manage(new Label("Search:",  0.0, 0.5)), 0, 1, 0, 1, FILL, AttachOptions(0));
  table->attach(*manage(new Label("Replace:", 0.0, 0.5)), 0, 1, 1, 2, FILL, AttachOptions(0));
  table->attach(*manage(entry_regex_        = new Entry()),  1, 2, 0, 1, EXPAND|FILL, AttachOptions(0));
  table->attach(*manage(entry_substitution_ = new Entry()),  1, 2, 1, 2, EXPAND|FILL, AttachOptions(0));

  entry_substitution_->signal_changed().connect(SigC::slot(*this, &MainWindow::update_preview));

  HBox *const hbox_options = new HBox(false, 5);
  table->attach(*manage(hbox_options), 2, 3, 0, 1, FILL, AttachOptions(0));
  hbox_options->pack_start(*manage(button_multiple_ = new CheckButton("/g")), PACK_SHRINK);
  hbox_options->pack_start(*manage(button_caseless_ = new CheckButton("/i")), PACK_SHRINK);

  Button *const button_find = new Button(Stock::FIND);
  table->attach(*manage(button_find), 2, 3, 1, 2, FILL, AttachOptions(0));
  button_find->signal_clicked().connect(SigC::slot(*this, &MainWindow::on_exec_search));

  Frame *const frame = new Frame();
  vbox->pack_start(*manage(frame), PACK_EXPAND_WIDGET);

  VBox *const vbox_textview = new VBox(false, 3);
  frame->add(*manage(vbox_textview));

  ScrolledWindow *const scrollwin = new ScrolledWindow();
  vbox_textview->pack_start(*manage(scrollwin), PACK_EXPAND_WIDGET);

  textview_ = new TextView();
  scrollwin->add(*manage(textview_));
363
  textview_->set_editable(false);
daniel_e's avatar
daniel_e committed
364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426

  entry_preview_ = new Entry();
  vbox_textview->pack_start(*manage(entry_preview_), PACK_SHRINK);
  entry_preview_->set_has_frame(false);
  entry_preview_->set_editable(false);
  entry_preview_->unset_flags(CAN_FOCUS);

  const Pango::FontDescription fixed_font ("fixed");
  textview_     ->modify_font(fixed_font);
  entry_preview_->modify_font(fixed_font);

  tooltips_.set_tip(*entry_regex_,        "A regular expression in Perl syntax.");
  tooltips_.set_tip(*entry_substitution_, "The new string to substitute. As in Perl, you can "
                                          "refer to parts of the match using $1, $2, etc. "
                                          "or even $+, $&, $` and $'. The operators "
                                          "\\l, \\u, \\L, \\U and \\E are supported as well.");
  tooltips_.set_tip(*button_multiple_,    "find all possible matches in a line");
  tooltips_.set_tip(*button_caseless_,    "do case insensitive matching");

  return vbox.release();
}

void MainWindow::on_select_folder()
{
  using namespace Glib;

  Gtk::FileSelection filesel ("Select a folder");
  filesel.set_transient_for(*this);
  filesel.hide_fileop_buttons();

  std::string filename = filename_from_utf8(Util::expand_pathname(entry_folder_->get_text()));

  if(!filename.empty())
  {
    if(*filename.rbegin() != G_DIR_SEPARATOR)
      filename += G_DIR_SEPARATOR;

    filesel.set_filename(filename);
  }

  if(filesel.run() == Gtk::RESPONSE_OK)
  {
    filename = filesel.get_filename();
    entry_folder_->set_text(Util::shorten_pathname(filename_to_utf8(path_get_dirname(filename))));

    if(!filename.empty() && *filename.rbegin() != G_DIR_SEPARATOR)
      entry_pattern_->set_text(filename_to_utf8(path_get_basename(filename)));
  }
}

void MainWindow::on_find_files()
{
  filelist_->find_files(
      Util::expand_pathname(entry_folder_->get_text()),
      entry_pattern_->get_text(),
      button_recursive_->get_active(),
      button_hidden_->get_active());
}

void MainWindow::on_exec_search()
{
  try
  {
427
    Pcre::Pattern pattern (
daniel_e's avatar
daniel_e committed
428
        entry_regex_->get_text(),
429 430 431
        button_caseless_->get_active() ? Pcre::CASELESS : Pcre::CompileOptions(0));

    filelist_->find_matches(pattern, button_multiple_->get_active());
daniel_e's avatar
daniel_e committed
432 433 434 435 436 437 438
  }
  catch(const Pcre::Error& e)
  {
    std::cerr << e.what() << std::endl;
    return;
  }

439
  if(filelist_->get_match_count() > 0)
daniel_e's avatar
daniel_e committed
440
  {
441 442 443 444 445 446
    // Scrolling has to be post-poned after the redraw, otherwise we might
    // not end up where we want to.  So do that by installing an idle handler.

    Glib::signal_idle().connect(
        SigC::slot(*this, &MainWindow::after_exec_search),
        Glib::PRIORITY_HIGH_IDLE + 25); // slightly less than redraw (+20)
daniel_e's avatar
daniel_e committed
447 448 449
  }
}

450
bool MainWindow::after_exec_search()
451
{
452 453
  filelist_->select_first_file();
  on_go_next(true);
454

455
  return false;
456 457
}

458
void MainWindow::on_filelist_switch_buffer(FileInfoPtr fileinfo)
daniel_e's avatar
daniel_e committed
459 460 461 462 463 464 465 466
{
  const FileBufferPtr old_buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer());

  if(fileinfo && fileinfo->buffer == old_buffer)
    return;

  if(old_buffer)
  {
467 468
    std::for_each(buffer_connections_.begin(), buffer_connections_.end(),
                  std::mem_fun_ref(&SigC::Connection::disconnect));
daniel_e's avatar
daniel_e committed
469

470
    buffer_connections_.clear();
daniel_e's avatar
daniel_e committed
471 472 473 474 475
    old_buffer->forget_current_match();
  }

  if(fileinfo && fileinfo->buffer)
  {
476 477 478
    const FileBufferPtr buffer = fileinfo->buffer;

    textview_->set_buffer(buffer);
479 480
    textview_->set_editable(true);

481
    set_title_filename(Util::filename_to_utf8_fallback(fileinfo->fullname));
daniel_e's avatar
daniel_e committed
482

483 484 485 486 487
    buffer_connections_.push_back(buffer->signal_match_count_changed.
        connect(SigC::slot(*this, &MainWindow::on_buffer_match_count_changed)));

    buffer_connections_.push_back(buffer->signal_modified_changed().
        connect(SigC::slot(*this, &MainWindow::on_buffer_modified_changed)));
488

489 490
    buffer_connections_.push_back(buffer->signal_bound_state_changed.
        connect(SigC::slot(*this, &MainWindow::on_buffer_bound_state_changed)));
daniel_e's avatar
daniel_e committed
491

492 493
    buffer_connections_.push_back(buffer->signal_preview_line_changed.
        connect(SigC::slot(*this, &MainWindow::update_preview)));
daniel_e's avatar
daniel_e committed
494

495
    on_buffer_match_count_changed(buffer->get_match_count());
496
    on_buffer_modified_changed();
497
    on_buffer_bound_state_changed(buffer->get_bound_state());
daniel_e's avatar
daniel_e committed
498 499 500 501
  }
  else
  {
    textview_->set_buffer(FileBuffer::create());
502 503
    textview_->set_editable(false);

daniel_e's avatar
daniel_e committed
504 505
    set_title_filename();

506
    on_buffer_match_count_changed(0);
507
    on_buffer_modified_changed();
508
    on_buffer_bound_state_changed(BOUND_FIRST | BOUND_LAST);
daniel_e's avatar
daniel_e committed
509 510 511 512 513
  }

  update_preview();
}

514 515
void MainWindow::on_filelist_bound_state_changed()
{
516
  BoundState bound = filelist_->get_bound_state();
517 518 519

  button_prev_file_->set_sensitive((bound & BOUND_FIRST) == 0);
  button_next_file_->set_sensitive((bound & BOUND_LAST)  == 0);
520 521 522 523

  if(const FileBufferPtr buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer()))
    bound &= buffer->get_bound_state();

daniel_e's avatar
daniel_e committed
524 525
  button_prev_->set_sensitive((bound & BOUND_FIRST) == 0);
  button_next_->set_sensitive((bound & BOUND_LAST)  == 0);
526 527 528 529 530 531 532 533 534 535 536 537
}

void MainWindow::on_filelist_match_count_changed()
{
  button_replace_all_->set_sensitive(filelist_->get_match_count() > 0);
}

void MainWindow::on_filelist_modified_count_changed()
{
  toolbutton_save_all_->set_sensitive(filelist_->get_modified_count() > 0);
}

538 539 540 541 542
void MainWindow::on_buffer_match_count_changed(int match_count)
{
  button_replace_file_->set_sensitive(match_count > 0);
}

543 544 545 546 547
void MainWindow::on_buffer_modified_changed()
{
  toolbutton_save_->set_sensitive(textview_->get_buffer()->get_modified());
}

548
void MainWindow::on_buffer_bound_state_changed(BoundState bound)
daniel_e's avatar
daniel_e committed
549
{
550 551 552 553
  bound &= filelist_->get_bound_state();

  button_prev_->set_sensitive((bound & BOUND_FIRST) == 0);
  button_next_->set_sensitive((bound & BOUND_LAST)  == 0);
daniel_e's avatar
daniel_e committed
554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
}

void MainWindow::on_go_next_file(bool move_forward)
{
  filelist_->select_next_file(move_forward);
  on_go_next(move_forward);
}

void MainWindow::on_go_next(bool move_forward)
{
  if(const FileBufferPtr buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer()))
  {
    if(const Glib::RefPtr<Gtk::TextMark> mark = buffer->get_next_match(move_forward))
    {
      textview_->scroll_to_mark(mark, 0.2);
      return;
    }
  }

  if(filelist_->select_next_file(move_forward))
  {
    on_go_next(move_forward); // recursive call
  }
}

void MainWindow::on_replace()
{
  if(const FileBufferPtr buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer()))
  {
    buffer->replace_current_match(entry_substitution_->get_text());
584
    on_go_next(true);
daniel_e's avatar
daniel_e committed
585 586 587 588 589
  }
}

void MainWindow::on_replace_file()
{
590 591 592 593
  if(const FileBufferPtr buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer()))
  {
    buffer->replace_all_matches(entry_substitution_->get_text());
  }
daniel_e's avatar
daniel_e committed
594 595 596 597
}

void MainWindow::on_replace_all()
{
598
  filelist_->replace_all_matches(entry_substitution_->get_text());
daniel_e's avatar
daniel_e committed
599 600 601 602 603 604 605 606 607 608
}

void MainWindow::update_preview()
{
  if(const FileBufferPtr buffer = FileBufferPtr::cast_dynamic(textview_->get_buffer()))
  {
    Glib::ustring preview;
    const int pos = buffer->get_line_preview(entry_substitution_->get_text(), preview);
    entry_preview_->set_text(preview);

609
    button_replace_->set_sensitive(pos >= 0);
daniel_e's avatar
daniel_e committed
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661

    // Beware, strange code ahead!
    //
    // The goal is to scroll the preview entry so that it shows the entire
    // replaced text if possible.  In order to do that we first move the cursor
    // to 0, forcing scrolling to the left boundary.  Then we set the cursor to
    // the end of the replaced text, thus forcing the entry widget to scroll
    // again.  The replacement should then be entirely visible provided that it
    // fits into the entry.
    //
    // The problem is that Gtk::Entry doesn't update its scroll position
    // immediately but in an idle handler, thus any calls to set_position()
    // but the last one have no effect at all.
    //
    // To workaround that, we install an idle handler that's executed just
    // after the entry updated its scroll position, but before redrawing is
    // done.

    entry_preview_->set_position(0);

    if(pos > 0)
    {
      using SigC::slot;
      using SigC::bind;
      using SigC::bind_return;

      Glib::signal_idle().connect(
          bind_return(bind(slot(*entry_preview_, &Gtk::Editable::set_position), pos), false),
          Glib::PRIORITY_HIGH_IDLE + 17); // between scroll update (+ 15) and redraw (+ 20)
    }
  }
}

void MainWindow::set_title_filename(const Glib::ustring& filename)
{
  Glib::ustring title;

  if(!filename.empty())
  {
    title  = Glib::path_get_basename(filename);
    title += " (";
    title += Util::shorten_pathname(Glib::path_get_dirname(filename));
    title += ") - ";
  }

  title += PACKAGE_NAME;

  set_title(title);
}

} // namespace Regexxer