pintos-os.org Git - pspp/blob - src/ui/gui/psppire-syntax-window.c

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2008, 2009, 2010, 2011, 2012, 2014, 2016  Free Software Foundation
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include <gtk/gtk.h>
  20 #include <stdlib.h>
  21
  22 #include <gtksourceview/gtksourcebuffer.h>
  23 #include <gtksourceview/gtksourcelanguage.h>
  24 #include <gtksourceview/gtksourcelanguagemanager.h>
  25 #include <gtksourceview/gtksourceprintcompositor.h>
  26
  27 #include "language/lexer/lexer.h"
  28 #include "libpspp/encoding-guesser.h"
  29 #include "libpspp/i18n.h"
  30 #include "libpspp/message.h"
  31 #include "ui/gui/executor.h"
  32 #include "ui/gui/help-menu.h"
  33 #include "ui/gui/helper.h"
  34 #include "ui/gui/builder-wrapper.h"
  35 #include "ui/gui/psppire-data-window.h"
  36 #include "ui/gui/psppire-encoding-selector.h"
  37 #include "ui/gui/psppire-lex-reader.h"
  38 #include "ui/gui/psppire-syntax-window.h"
  39 #include "ui/gui/psppire.h"
  40 #include "ui/gui/windows-menu.h"
  41
  42 #include "gl/localcharset.h"
  43 #include "gl/xalloc.h"
  44 #include "gl/xvasprintf.h"
  45
  46 #include <gettext.h>
  47 #define _(msgid) gettext (msgid)
  48 #define N_(msgid) msgid
  49
  50 static void psppire_syntax_window_base_finalize (PsppireSyntaxWindowClass *, gpointer);
  51 static void psppire_syntax_window_base_init     (PsppireSyntaxWindowClass *class);
  52 static void psppire_syntax_window_class_init    (PsppireSyntaxWindowClass *class);
  53 static void psppire_syntax_window_init          (PsppireSyntaxWindow      *syntax_editor);
  54
  55
  56 static void psppire_syntax_window_iface_init (PsppireWindowIface *iface);
  57
  58
  59 /* Properties */
  60 enum
  61 {
  62   PROP_0,
  63   PROP_ENCODING
  64 };
  65
  66 static void
  67 psppire_syntax_window_set_property (GObject         *object,
  68                                     guint            prop_id,
  69                                     const GValue    *value,
  70                                     GParamSpec      *pspec)
  71 {
  72   PsppireSyntaxWindow *window = PSPPIRE_SYNTAX_WINDOW (object);
  73
  74   switch (prop_id)
  75     {
  76     case PROP_ENCODING:
  77       g_free (window->encoding);
  78       window->encoding = g_value_dup_string (value);
  79       break;
  80     default:
  81       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  82       break;
  83     };
  84 }
  85
  86
  87 static void
  88 psppire_syntax_window_get_property (GObject         *object,
  89                                     guint            prop_id,
  90                                     GValue          *value,
  91                                     GParamSpec      *pspec)
  92 {
  93   PsppireSyntaxWindow *window = PSPPIRE_SYNTAX_WINDOW (object);
  94
  95   switch (prop_id)
  96     {
  97     case PROP_ENCODING:
  98       g_value_set_string (value, window->encoding);
  99       break;
 100     default:
 101       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 102       break;
 103     };
 104 }
 105
 106 GType
 107 psppire_syntax_window_get_type (void)
 108 {
 109   static GType psppire_syntax_window_type = 0;
 110
 111   if (!psppire_syntax_window_type)
 112     {
 113       static const GTypeInfo psppire_syntax_window_info =
 114       {
 115         sizeof (PsppireSyntaxWindowClass),
 116         (GBaseInitFunc) psppire_syntax_window_base_init,
 117         (GBaseFinalizeFunc) psppire_syntax_window_base_finalize,
 118         (GClassInitFunc)psppire_syntax_window_class_init,
 119         (GClassFinalizeFunc) NULL,
 120         NULL,
 121         sizeof (PsppireSyntaxWindow),
 122         0,
 123         (GInstanceInitFunc) psppire_syntax_window_init,
 124       };
 125
 126       static const GInterfaceInfo window_interface_info =
 127         {
 128           (GInterfaceInitFunc) psppire_syntax_window_iface_init,
 129           NULL,
 130           NULL
 131         };
 132
 133       psppire_syntax_window_type =
 134         g_type_register_static (PSPPIRE_TYPE_WINDOW, "PsppireSyntaxWindow",
 135                                 &psppire_syntax_window_info, 0);
 136
 137       g_type_add_interface_static (psppire_syntax_window_type,
 138                                    PSPPIRE_TYPE_WINDOW_MODEL,
 139                                    &window_interface_info);
 140     }
 141
 142   return psppire_syntax_window_type;
 143 }
 144
 145 static GObjectClass *parent_class ;
 146
 147 static void
 148 psppire_syntax_window_finalize (GObject *object)
 149 {
 150   if (G_OBJECT_CLASS (parent_class)->finalize)
 151     (*G_OBJECT_CLASS (parent_class)->finalize) (object);
 152 }
 153
 154
 155 static void
 156 psppire_syntax_window_dispose (GObject *obj)
 157 {
 158   PsppireSyntaxWindow *sw = (PsppireSyntaxWindow *)obj;
 159
 160   GtkClipboard *clip_selection;
 161   GtkClipboard *clip_primary;
 162
 163   if (sw->dispose_has_run)
 164     return;
 165
 166   g_free (sw->encoding);
 167   sw->encoding = NULL;
 168
 169   clip_selection = gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_CLIPBOARD);
 170   clip_primary =   gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_PRIMARY);
 171
 172   g_signal_handler_disconnect (clip_primary, sw->sel_handler);
 173
 174   g_signal_handler_disconnect (clip_selection, sw->ps_handler);
 175
 176   /* Make sure dispose does not run twice. */
 177   sw->dispose_has_run = TRUE;
 178
 179   /* Chain up to the parent class */
 180   G_OBJECT_CLASS (parent_class)->dispose (obj);
 181 }
 182
 183
 184
 185 static void
 186 psppire_syntax_window_class_init (PsppireSyntaxWindowClass *class)
 187 {
 188   GParamSpec *encoding_spec;
 189   GObjectClass *gobject_class = G_OBJECT_CLASS (class);
 190
 191   GtkSourceLanguageManager *lm = gtk_source_language_manager_get_default ();
 192
 193   const gchar * const *existing_paths =  gtk_source_language_manager_get_search_path (lm);
 194   gchar **new_paths = g_strdupv ((gchar **)existing_paths);
 195   int n = g_strv_length ((gchar **) existing_paths);
 196
 197   new_paths = g_realloc (new_paths, (n + 2) * sizeof (*new_paths));
 198   new_paths[n] = g_strdup (relocate (PKGDATADIR));
 199   new_paths[n+1] = NULL;
 200
 201   lm = gtk_source_language_manager_new ();
 202   gtk_source_language_manager_set_search_path (lm, new_paths);
 203
 204   class->lan = gtk_source_language_manager_get_language (lm, "pspp");
 205
 206   if (class->lan == NULL)
 207     g_warning ("pspp.lang file not found.  Syntax highlighting will not be available.");
 208
 209   parent_class = g_type_class_peek_parent (class);
 210
 211   g_strfreev (new_paths);
 212
 213   encoding_spec =
 214     null_if_empty_param ("encoding",
 215                          "Character encoding",
 216                          "IANA character encoding in this syntax file",
 217                          NULL,
 218                          G_PARAM_CONSTRUCT | G_PARAM_READWRITE);
 219
 220   parent_class = g_type_class_peek_parent (class);
 221
 222   gobject_class->set_property = psppire_syntax_window_set_property;
 223   gobject_class->get_property = psppire_syntax_window_get_property;
 224   gobject_class->dispose = psppire_syntax_window_dispose;
 225
 226   g_object_class_install_property (gobject_class,
 227                                    PROP_ENCODING,
 228                                    encoding_spec);
 229 }
 230
 231
 232 static void
 233 psppire_syntax_window_base_init (PsppireSyntaxWindowClass *class)
 234 {
 235   GObjectClass *object_class = G_OBJECT_CLASS (class);
 236   object_class->finalize = psppire_syntax_window_finalize;
 237 }
 238
 239
 240
 241 static void
 242 psppire_syntax_window_base_finalize (PsppireSyntaxWindowClass *class,
 243                                      gpointer class_data)
 244 {
 245 }
 246
 247
 248 static void
 249 editor_execute_syntax (const PsppireSyntaxWindow *sw, GtkTextIter start,
 250                        GtkTextIter stop)
 251 {
 252   PsppireWindow *win = PSPPIRE_WINDOW (sw);
 253   struct lex_reader *reader = lex_reader_for_gtk_text_buffer (GTK_TEXT_BUFFER (sw->buffer), start, stop);
 254
 255   lex_reader_set_file_name (reader, psppire_window_get_filename (win));
 256
 257   execute_syntax (psppire_default_data_window (), reader);
 258 }
 259 \f
 260 /* Delete the currently selected text */
 261 static void
 262 on_edit_delete (PsppireSyntaxWindow *sw)
 263 {
 264   GtkTextIter begin, end;
 265   GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
 266
 267   if ( gtk_text_buffer_get_selection_bounds (buffer, &begin, &end) )
 268     gtk_text_buffer_delete (buffer, &begin, &end);
 269 }
 270
 271
 272 /* The syntax editor's clipboard deals only with text */
 273 enum {
 274   SELECT_FMT_NULL,
 275   SELECT_FMT_TEXT,
 276 };
 277
 278
 279 static void
 280 selection_changed (PsppireSyntaxWindow *sw)
 281 {
 282   gboolean sel = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (sw->buffer));
 283
 284   g_object_set (sw->edit_copy,    "enabled", sel, NULL);
 285   g_object_set (sw->edit_cut,     "enabled", sel, NULL);
 286   g_object_set (sw->edit_delete,  "enabled", sel, NULL);
 287 }
 288
 289 /* The callback which runs when something request clipboard data */
 290 static void
 291 clipboard_get_cb (GtkClipboard     *clipboard,
 292                   GtkSelectionData *selection_data,
 293                   guint             info,
 294                   gpointer          data)
 295 {
 296   PsppireSyntaxWindow *sw = data;
 297   g_assert (info == SELECT_FMT_TEXT);
 298
 299   gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data),
 300                           8,
 301                           (const guchar *) sw->cliptext, strlen (sw->cliptext));
 302
 303 }
 304
 305 static void
 306 clipboard_clear_cb (GtkClipboard *clipboard,
 307                     gpointer data)
 308 {
 309   PsppireSyntaxWindow *sw = data;
 310   g_free (sw->cliptext);
 311   sw->cliptext = NULL;
 312 }
 313
 314
 315 static const GtkTargetEntry targets[] = {
 316   { "UTF8_STRING",   0, SELECT_FMT_TEXT },
 317   { "STRING",        0, SELECT_FMT_TEXT },
 318   { "TEXT",          0, SELECT_FMT_TEXT },
 319   { "COMPOUND_TEXT", 0, SELECT_FMT_TEXT },
 320   { "text/plain;charset=utf-8", 0, SELECT_FMT_TEXT },
 321   { "text/plain",    0, SELECT_FMT_TEXT },
 322 };
 323
 324
 325 /*
 326   Store a clip containing the currently selected text.
 327   Returns true iff something was set.
 328   As a side effect, begin and end will be set to indicate
 329   the limits of the selected text.
 330 */
 331 static gboolean
 332 set_clip (PsppireSyntaxWindow *sw, GtkTextIter *begin, GtkTextIter *end)
 333 {
 334   GtkClipboard *clipboard ;
 335   GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
 336
 337   if ( ! gtk_text_buffer_get_selection_bounds (buffer, begin, end) )
 338     return FALSE;
 339
 340   g_free (sw->cliptext);
 341   sw->cliptext = gtk_text_buffer_get_text  (buffer, begin, end, FALSE);
 342
 343   clipboard =
 344     gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_CLIPBOARD);
 345
 346   if (!gtk_clipboard_set_with_owner (clipboard, targets,
 347                                      G_N_ELEMENTS (targets),
 348                                      clipboard_get_cb, clipboard_clear_cb,
 349                                      G_OBJECT (sw)))
 350     clipboard_clear_cb (clipboard, sw);
 351
 352   return TRUE;
 353 }
 354
 355 static void
 356 on_edit_cut (PsppireSyntaxWindow *sw)
 357 {
 358   GtkTextIter begin, end;
 359
 360   if ( set_clip (sw, &begin, &end))
 361     gtk_text_buffer_delete (GTK_TEXT_BUFFER (sw->buffer), &begin, &end);
 362 }
 363
 364 static void
 365 on_edit_copy (PsppireSyntaxWindow *sw)
 366 {
 367   GtkTextIter begin, end;
 368
 369   set_clip (sw, &begin, &end);
 370 }
 371
 372 static void
 373 on_edit_paste (PsppireSyntaxWindow *sw)
 374 {
 375   GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (sw));
 376   GtkClipboard *clipboard =
 377     gtk_clipboard_get_for_display (display, GDK_SELECTION_CLIPBOARD);
 378
 379   gtk_text_buffer_paste_clipboard (GTK_TEXT_BUFFER (sw->buffer), clipboard, NULL, TRUE);
 380 }
 381
 382
 383 /* Check to see if CLIP holds a target which we know how to paste,
 384    and set the sensitivity of the Paste action accordingly.
 385  */
 386 static void
 387 set_paste_sensitivity (GtkClipboard *clip, GdkEventOwnerChange *event, gpointer data)
 388 {
 389   gint i;
 390   gboolean compatible_target = FALSE;
 391   PsppireSyntaxWindow *sw = PSPPIRE_SYNTAX_WINDOW (data);
 392
 393   for (i = 0 ; i < sizeof (targets) / sizeof (targets[0]) ; ++i)
 394     {
 395       GdkAtom atom = gdk_atom_intern (targets[i].target, TRUE);
 396       if ( gtk_clipboard_wait_is_target_available (clip, atom))
 397         {
 398           compatible_target = TRUE;
 399           break;
 400         }
 401     }
 402
 403   g_object_set (sw->edit_paste, "enabled", compatible_target, NULL);
 404 }
 405
 406
 407 \f
 408
 409 /* Parse and execute all the text in the buffer */
 410 static void
 411 on_run_all (PsppireSyntaxWindow *se)
 412 {
 413   GtkTextIter begin, end;
 414
 415   gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (se->buffer), &begin, 0);
 416   gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (se->buffer), &end, -1);
 417
 418   editor_execute_syntax (se, begin, end);
 419 }
 420
 421 /* Parse and execute the currently selected text */
 422 static void
 423 on_run_selection (PsppireSyntaxWindow *se)
 424 {
 425   GtkTextIter begin, end;
 426
 427   if ( gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (se->buffer), &begin, &end) )
 428     editor_execute_syntax (se, begin, end);
 429 }
 430
 431
 432 /* Parse and execute the from the current line, to the end of the
 433    buffer */
 434 static void
 435 on_run_to_end (PsppireSyntaxWindow *se)
 436 {
 437   GtkTextIter begin, end;
 438   GtkTextIter here;
 439   gint line;
 440
 441   /* Get the current line */
 442   gtk_text_buffer_get_iter_at_mark (GTK_TEXT_BUFFER (se->buffer),
 443                                     &here,
 444                                     gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (se->buffer))
 445                                     );
 446
 447   line = gtk_text_iter_get_line (&here) ;
 448
 449   /* Now set begin and end to the start of this line, and end of buffer
 450      respectively */
 451   gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &begin, line);
 452   gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &end, -1);
 453
 454   editor_execute_syntax (se, begin, end);
 455 }
 456
 457
 458
 459 /* Parse and execute the current line */
 460 static void
 461 on_run_current_line (PsppireSyntaxWindow *se)
 462 {
 463   GtkTextIter begin, end;
 464   GtkTextIter here;
 465   gint line;
 466
 467   /* Get the current line */
 468   gtk_text_buffer_get_iter_at_mark (GTK_TEXT_BUFFER (se->buffer),
 469                                     &here,
 470                                     gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (se->buffer))
 471                                     );
 472
 473   line = gtk_text_iter_get_line (&here) ;
 474
 475   /* Now set begin and end to the start of this line, and start of
 476      following line respectively */
 477   gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &begin, line);
 478   gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &end, line + 1);
 479
 480   editor_execute_syntax (se, begin, end);
 481 }
 482
 483
 484
 485 /* Append ".sps" to FILENAME if necessary.
 486    The returned result must be freed when no longer required.
 487  */
 488 static gchar *
 489 append_suffix (const gchar *filename)
 490 {
 491   if ( ! g_str_has_suffix (filename, ".sps" ) &&
 492        ! g_str_has_suffix (filename, ".SPS" ) )
 493     {
 494       return g_strdup_printf ("%s.sps", filename);
 495     }
 496
 497   return xstrdup (filename);
 498 }
 499
 500 /*
 501   Save BUFFER to the file called FILENAME.
 502   FILENAME must be encoded in Glib filename encoding.
 503   If successful, clears the buffer's modified flag.
 504 */
 505 static gboolean
 506 save_editor_to_file (PsppireSyntaxWindow *se,
 507                      const gchar *filename,
 508                      GError **err)
 509 {
 510   GtkTextBuffer *buffer = GTK_TEXT_BUFFER (se->buffer);
 511   struct substring text_locale;
 512   gboolean result ;
 513   GtkTextIter start, stop;
 514   gchar *text;
 515
 516   gchar *suffixedname;
 517   g_assert (filename);
 518
 519   suffixedname = append_suffix (filename);
 520
 521   gtk_text_buffer_get_iter_at_line (buffer, &start, 0);
 522   gtk_text_buffer_get_iter_at_offset (buffer, &stop, -1);
 523
 524   text = gtk_text_buffer_get_text (buffer, &start, &stop, FALSE);
 525
 526   text_locale = recode_substring_pool (se->encoding, "UTF-8", ss_cstr (text),
 527                                        NULL);
 528
 529   result =  g_file_set_contents (suffixedname, ss_data (text_locale),
 530                                  ss_length (text_locale), err);
 531
 532   ss_dealloc (&text_locale);
 533   g_free (suffixedname);
 534
 535   if ( result )
 536     {
 537       char *fn = g_filename_display_name (filename);
 538       gchar *msg = g_strdup_printf (_("Saved file `%s'"), fn);
 539       g_free (fn);
 540       gtk_statusbar_push (GTK_STATUSBAR (se->sb), se->text_context, msg);
 541       gtk_text_buffer_set_modified (buffer, FALSE);
 542       g_free (msg);
 543     }
 544
 545   return result;
 546 }
 547
 548
 549 /* PsppireWindow 'pick_Filename' callback. */
 550 static void
 551 syntax_pick_filename (PsppireWindow *window)
 552 {
 553   PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (window);
 554   const char *default_encoding;
 555   GtkFileFilter *filter;
 556   gint response;
 557
 558   GtkWidget *dialog =
 559     gtk_file_chooser_dialog_new (_("Save Syntax"),
 560                                  GTK_WINDOW (se),
 561                                  GTK_FILE_CHOOSER_ACTION_SAVE,
 562                                  _("Cancel"), GTK_RESPONSE_CANCEL,
 563                                  _("Save"),   GTK_RESPONSE_ACCEPT,
 564                                  NULL);
 565
 566   g_object_set (dialog, "local-only", FALSE, NULL);
 567
 568   filter = gtk_file_filter_new ();
 569   gtk_file_filter_set_name (filter, _("Syntax Files (*.sps) "));
 570   gtk_file_filter_add_pattern (filter, "*.sps");
 571   gtk_file_filter_add_pattern (filter, "*.SPS");
 572   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 573
 574   filter = gtk_file_filter_new ();
 575   gtk_file_filter_set_name (filter, _("All Files"));
 576   gtk_file_filter_add_pattern (filter, "*");
 577   gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
 578
 579   gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog),
 580                                                   TRUE);
 581
 582   default_encoding = se->encoding != NULL ? se->encoding : locale_charset ();
 583   gtk_file_chooser_set_extra_widget (
 584     GTK_FILE_CHOOSER (dialog),
 585     psppire_encoding_selector_new (default_encoding, false));
 586
 587   response = gtk_dialog_run (GTK_DIALOG (dialog));
 588
 589   if ( response == GTK_RESPONSE_ACCEPT )
 590     {
 591       gchar *encoding;
 592       char *filename;
 593
 594       filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog) );
 595       psppire_window_set_filename (window, filename);
 596       free (filename);
 597
 598       encoding = psppire_encoding_selector_get_encoding (
 599         gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (dialog)));
 600       if (encoding != NULL)
 601         {
 602           g_free (se->encoding);
 603           se->encoding = encoding;
 604         }
 605     }
 606
 607   gtk_widget_destroy (dialog);
 608 }
 609
 610
 611 /* PsppireWindow 'save' callback. */
 612 static void
 613 syntax_save (PsppireWindow *se)
 614 {
 615   const gchar *filename = psppire_window_get_filename (se);
 616   GError *err = NULL;
 617   save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err);
 618   if ( err )
 619     {
 620       msg (ME, "%s", err->message);
 621       g_error_free (err);
 622     }
 623 }
 624
 625
 626 static void
 627 load_and_show_syntax_window (GtkWidget *se, const gchar *filename,
 628                              const gchar *encoding)
 629 {
 630   gboolean ok;
 631
 632   gtk_source_buffer_begin_not_undoable_action (PSPPIRE_SYNTAX_WINDOW (se)->buffer);
 633   ok = psppire_window_load (PSPPIRE_WINDOW (se), filename, encoding, NULL);
 634   gtk_source_buffer_end_not_undoable_action (PSPPIRE_SYNTAX_WINDOW (se)->buffer);
 635
 636   if (ok )
 637     gtk_widget_show (se);
 638   else
 639     gtk_widget_destroy (se);
 640 }
 641
 642 void
 643 create_syntax_window (void)
 644 {
 645   GtkWidget *w = psppire_syntax_window_new (NULL);
 646
 647   gtk_widget_show (w);
 648 }
 649
 650 void
 651 open_syntax_window (const char *file_name, const gchar *encoding)
 652 {
 653   GtkWidget *se = psppire_syntax_window_new (NULL);
 654
 655   if ( file_name)
 656     load_and_show_syntax_window (se, file_name, encoding);
 657 }
 658
 659
 660
 661 static void psppire_syntax_window_print (PsppireSyntaxWindow *window);
 662
 663 static void
 664 on_modified_changed (GtkTextBuffer *buffer, PsppireWindow *window)
 665 {
 666   if (gtk_text_buffer_get_modified (buffer))
 667     psppire_window_set_unsaved (window);
 668 }
 669
 670 static void undo_redo_update (PsppireSyntaxWindow *window);
 671 static void undo_last_edit (PsppireSyntaxWindow *window);
 672 static void redo_last_edit (PsppireSyntaxWindow *window);
 673
 674 static void
 675 on_text_changed (GtkTextBuffer *buffer, PsppireSyntaxWindow *window)
 676 {
 677   gtk_statusbar_pop (GTK_STATUSBAR (window->sb), window->text_context);
 678   undo_redo_update (window);
 679 }
 680
 681 static void
 682 psppire_syntax_window_init (PsppireSyntaxWindow *window)
 683 {
 684   GtkBuilder *xml = builder_new ("syntax-editor.ui");
 685   GtkWidget *box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
 686
 687   GObject *menu = get_object_assert (xml, "syntax-window-menu", G_TYPE_MENU);
 688   GtkWidget *menubar = gtk_menu_bar_new_from_model (G_MENU_MODEL (menu));
 689
 690   GtkWidget *sw = get_widget_assert (xml, "scrolledwindow8");
 691
 692   GtkWidget *text_view = get_widget_assert (xml, "syntax_text_view");
 693
 694   PsppireSyntaxWindowClass *class
 695     = PSPPIRE_SYNTAX_WINDOW_CLASS (G_OBJECT_GET_CLASS (window));
 696
 697   GtkClipboard *clip_selection = gtk_widget_get_clipboard (GTK_WIDGET (window), GDK_SELECTION_CLIPBOARD);
 698   GtkClipboard *clip_primary =   gtk_widget_get_clipboard (GTK_WIDGET (window), GDK_SELECTION_PRIMARY);
 699
 700   window->print_settings = NULL;
 701
 702   window->undo_menuitem = g_simple_action_new ("undo", NULL);
 703   window->redo_menuitem = g_simple_action_new ("redo", NULL);
 704
 705   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->undo_menuitem));
 706   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->redo_menuitem));
 707
 708
 709   if (class->lan)
 710     window->buffer = gtk_source_buffer_new_with_language (class->lan);
 711   else
 712     window->buffer = gtk_source_buffer_new (NULL);
 713
 714   gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), GTK_TEXT_BUFFER (window->buffer));
 715
 716   g_object_set (window->buffer,
 717                 "highlight-matching-brackets", TRUE,
 718                 NULL);
 719
 720   g_object_set (text_view,
 721                 "show-line-numbers", TRUE,
 722                 "show-line-marks", TRUE,
 723                 "auto-indent", TRUE,
 724                 "indent-width", 4,
 725                 "highlight-current-line", TRUE,
 726                 NULL);
 727
 728   window->encoding = NULL;
 729
 730   window->cliptext = NULL;
 731   window->dispose_has_run = FALSE;
 732
 733
 734   window->edit_delete = g_simple_action_new ("delete", NULL);
 735   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->edit_delete));
 736
 737   window->edit_copy = g_simple_action_new ("copy", NULL);
 738   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->edit_copy));
 739
 740   window->edit_cut = g_simple_action_new ("cut", NULL);
 741   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->edit_cut));
 742
 743   window->edit_paste = g_simple_action_new ("paste", NULL);
 744   g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (window->edit_paste));
 745
 746
 747   window->buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view)));
 748
 749   window->sb = get_widget_assert (xml, "statusbar2");
 750   window->text_context = gtk_statusbar_get_context_id (GTK_STATUSBAR (window->sb), "Text Context");
 751
 752   g_signal_connect (window->buffer, "changed",
 753                     G_CALLBACK (on_text_changed), window);
 754
 755   g_signal_connect (window->buffer, "modified-changed",
 756                     G_CALLBACK (on_modified_changed), window);
 757
 758
 759   {
 760     GSimpleAction *print = g_simple_action_new ("print", NULL);
 761
 762     g_signal_connect_swapped (print, "activate",
 763                               G_CALLBACK (psppire_syntax_window_print), window);
 764
 765     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (print));
 766   }
 767
 768   g_signal_connect_swapped (window->undo_menuitem,
 769                             "activate",
 770                             G_CALLBACK (undo_last_edit),
 771                             window);
 772
 773   g_signal_connect_swapped (window->redo_menuitem,
 774                             "activate",
 775                             G_CALLBACK (redo_last_edit),
 776                             window);
 777
 778   undo_redo_update (window);
 779
 780
 781   window->sel_handler = g_signal_connect_swapped (clip_primary, "owner-change",
 782                                                    G_CALLBACK (selection_changed), window);
 783
 784   window->ps_handler = g_signal_connect (clip_selection, "owner-change",
 785                                           G_CALLBACK (set_paste_sensitivity), window);
 786
 787   connect_help (xml);
 788
 789   gtk_container_add (GTK_CONTAINER (window), box);
 790
 791   g_object_ref (sw);
 792
 793   g_object_ref (window->sb);
 794
 795   gtk_box_pack_start (GTK_BOX (box), menubar, FALSE, TRUE, 0);
 796   gtk_box_pack_start (GTK_BOX (box), sw, TRUE, TRUE, 0);
 797   gtk_box_pack_start (GTK_BOX (box), window->sb, FALSE, TRUE, 0);
 798
 799   gtk_widget_show_all (box);
 800
 801   GApplication *app = g_application_get_default ();
 802
 803   {
 804     GSimpleAction *open = g_simple_action_new ("open", NULL);
 805
 806     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (open));
 807
 808     g_signal_connect_swapped (open,
 809                               "activate",
 810                               G_CALLBACK (psppire_window_open),
 811                               window);
 812   }
 813
 814   {
 815     GSimpleAction *save = g_simple_action_new ("save", NULL);
 816
 817     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (save));
 818
 819     g_signal_connect_swapped (save,
 820                               "activate",
 821                               G_CALLBACK (psppire_window_save),
 822                               window);
 823
 824     const gchar *accels[2] = { "<Ctrl>S", NULL};
 825     gtk_application_set_accels_for_action (app,
 826                                            "win.save",
 827                                            accels);
 828
 829   }
 830
 831   {
 832     GSimpleAction *save_as = g_simple_action_new ("save_as", NULL);
 833
 834     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (save_as));
 835
 836     g_signal_connect_swapped (save_as,
 837                               "activate",
 838                               G_CALLBACK (psppire_window_save_as),
 839                               window);
 840
 841
 842     const gchar *accels[2] = { "<Shift><Ctrl>S", NULL};
 843     gtk_application_set_accels_for_action (app,
 844                                            "win.save_as",
 845                                            accels);
 846
 847
 848   }
 849
 850
 851   g_signal_connect_swapped (window->edit_delete,
 852                     "activate",
 853                     G_CALLBACK (on_edit_delete),
 854                     window);
 855
 856   g_signal_connect_swapped (window->edit_copy,
 857                     "activate",
 858                     G_CALLBACK (on_edit_copy),
 859                     window);
 860
 861   g_signal_connect_swapped (window->edit_cut,
 862                     "activate",
 863                     G_CALLBACK (on_edit_cut),
 864                     window);
 865
 866   g_signal_connect_swapped (window->edit_paste,
 867                     "activate",
 868                     G_CALLBACK (on_edit_paste),
 869                     window);
 870
 871   {
 872     GSimpleAction *run_all = g_simple_action_new ("run-all", NULL);
 873
 874     g_signal_connect_swapped (run_all, "activate",
 875                               G_CALLBACK (on_run_all), window);
 876
 877     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (run_all));
 878   }
 879
 880   {
 881     GSimpleAction *run_current_line = g_simple_action_new ("run-current-line", NULL);
 882
 883     g_signal_connect_swapped (run_current_line, "activate",
 884                               G_CALLBACK (on_run_current_line), window);
 885
 886     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (run_current_line));
 887
 888     GApplication *app = g_application_get_default ();
 889     const gchar *accels[2] = { "<Ctrl>R", NULL};
 890     gtk_application_set_accels_for_action (app,
 891                                            "win.run-current-line",
 892                                            accels);
 893   }
 894
 895   {
 896     GSimpleAction *run_selection = g_simple_action_new ("run-selection", NULL);
 897
 898     g_signal_connect_swapped (run_selection, "activate",
 899                               G_CALLBACK (on_run_selection), window);
 900
 901     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (run_selection));
 902   }
 903
 904   {
 905     GSimpleAction *run_to_end = g_simple_action_new ("run-to-end", NULL);
 906
 907     g_signal_connect_swapped (run_to_end, "activate",
 908                               G_CALLBACK (on_run_to_end), window);
 909
 910     g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (run_to_end));
 911   }
 912
 913   gtk_menu_shell_append (GTK_MENU_SHELL (menubar),
 914                          create_windows_menu (GTK_WINDOW (window)));
 915
 916   gtk_menu_shell_append (GTK_MENU_SHELL (menubar),
 917                          create_help_menu (GTK_WINDOW (window)));
 918
 919   g_object_unref (xml);
 920 }
 921
 922
 923
 924
 925
 926 GtkWidget *
 927 psppire_syntax_window_new (const char *encoding)
 928 {
 929   GObject *sw = g_object_new (psppire_syntax_window_get_type (),
 930                               "description", _("Syntax Editor"),
 931                               "encoding", encoding,
 932                               NULL);
 933
 934   GApplication *app = g_application_get_default ();
 935   gtk_application_add_window (GTK_APPLICATION (app), GTK_WINDOW (sw));
 936
 937   return GTK_WIDGET (sw);
 938 }
 939
 940 static void
 941 error_dialog (GtkWindow *w, const gchar *filename,  GError *err)
 942 {
 943   gchar *fn = g_filename_display_basename (filename);
 944
 945   GtkWidget *dialog =
 946     gtk_message_dialog_new (w,
 947                             GTK_DIALOG_DESTROY_WITH_PARENT,
 948                             GTK_MESSAGE_ERROR,
 949                             GTK_BUTTONS_CLOSE,
 950                             _("Cannot load syntax file `%s'"),
 951                             fn);
 952
 953   g_free (fn);
 954
 955   g_object_set (dialog, "icon-name", "pspp", NULL);
 956
 957   gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
 958                                             "%s", err->message);
 959
 960   gtk_dialog_run (GTK_DIALOG (dialog));
 961
 962   gtk_widget_destroy (dialog);
 963 }
 964
 965 /*
 966   Loads the buffer from the file called FILENAME
 967 */
 968 gboolean
 969 syntax_load (PsppireWindow *window, const gchar *filename,
 970              const gchar *encoding, gpointer not_used)
 971 {
 972   GError *err = NULL;
 973   gchar *text_locale = NULL;
 974   gchar *text_utf8 = NULL;
 975   gsize len_locale = -1;
 976   gsize len_utf8 = -1;
 977   GtkTextIter iter;
 978   PsppireSyntaxWindow *sw = PSPPIRE_SYNTAX_WINDOW (window);
 979   GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
 980
 981   /* FIXME: What if it's a very big file ? */
 982   if ( ! g_file_get_contents (filename, &text_locale, &len_locale, &err) )
 983     {
 984       error_dialog (GTK_WINDOW (window), filename, err);
 985       g_clear_error (&err);
 986       return FALSE;
 987     }
 988
 989   if (!encoding || !encoding[0])
 990     {
 991       /* Determine the file's encoding and update sw->encoding.  (The ordering
 992          is important here because encoding_guess_whole_file() often returns
 993          its argument instead of a copy of it.) */
 994       char *guessed_encoding;
 995
 996       guessed_encoding = g_strdup (encoding_guess_whole_file (sw->encoding,
 997                                                               text_locale,
 998                                                               len_locale));
 999       g_free (sw->encoding);
1000       sw->encoding = guessed_encoding;
1001     }
1002   else
1003     {
1004       g_free (sw->encoding);
1005       sw->encoding = g_strdup (encoding);
1006     }
1007
1008   text_utf8 = recode_substring_pool ("UTF-8", sw->encoding,
1009                                      ss_buffer (text_locale, len_locale),
1010                                      NULL).string;
1011   free (text_locale);
1012
1013   if ( text_utf8 == NULL )
1014     {
1015       error_dialog (GTK_WINDOW (window), filename, err);
1016       g_clear_error (&err);
1017       return FALSE;
1018     }
1019
1020   gtk_text_buffer_get_iter_at_line (buffer, &iter, 0);
1021
1022   gtk_text_buffer_insert (buffer, &iter, text_utf8, len_utf8);
1023
1024   gtk_text_buffer_set_modified (buffer, FALSE);
1025
1026   free (text_utf8);
1027
1028   add_most_recent (filename, "text/x-spss-syntax", sw->encoding);
1029
1030   return TRUE;
1031 }
1032
1033 \f
1034
1035 static void
1036 psppire_syntax_window_iface_init (PsppireWindowIface *iface)
1037 {
1038   iface->save = syntax_save;
1039   iface->pick_filename = syntax_pick_filename;
1040   iface->load = syntax_load;
1041 }
1042
1043
1044 \f
1045
1046 static void
1047 undo_redo_update (PsppireSyntaxWindow *window)
1048 {
1049   g_object_set (window->undo_menuitem, "enabled",
1050                 gtk_source_buffer_can_undo (window->buffer), NULL);
1051
1052   g_object_set  (window->redo_menuitem, "enabled",
1053                  gtk_source_buffer_can_redo (window->buffer), NULL);
1054 }
1055
1056 static void
1057 undo_last_edit (PsppireSyntaxWindow *window)
1058 {
1059   gtk_source_buffer_undo (window->buffer);
1060   undo_redo_update (window);
1061 }
1062
1063 static void
1064 redo_last_edit (PsppireSyntaxWindow *window)
1065 {
1066   gtk_source_buffer_redo (window->buffer);
1067   undo_redo_update (window);
1068 }
1069
1070
1071 \f
1072 /* Printing related stuff */
1073
1074
1075 static void
1076 begin_print (GtkPrintOperation *operation,
1077           GtkPrintContext   *context,
1078           PsppireSyntaxWindow *window)
1079 {
1080   window->compositor =
1081     gtk_source_print_compositor_new (window->buffer);
1082 }
1083
1084
1085 static void
1086 end_print (GtkPrintOperation *operation,
1087           GtkPrintContext   *context,
1088           PsppireSyntaxWindow *window)
1089 {
1090   g_object_unref (window->compositor);
1091   window->compositor = NULL;
1092 }
1093
1094
1095
1096 static gboolean
1097 paginate (GtkPrintOperation *operation,
1098           GtkPrintContext   *context,
1099           PsppireSyntaxWindow *window)
1100 {
1101   if (gtk_source_print_compositor_paginate (window->compositor, context))
1102     {
1103       gint n_pages = gtk_source_print_compositor_get_n_pages (window->compositor);
1104       gtk_print_operation_set_n_pages (operation, n_pages);
1105
1106       return TRUE;
1107     }
1108
1109   return FALSE;
1110 }
1111
1112 static void
1113 draw_page (GtkPrintOperation *operation,
1114            GtkPrintContext   *context,
1115            gint               page_nr,
1116           PsppireSyntaxWindow *window)
1117 {
1118   gtk_source_print_compositor_draw_page (window->compositor,
1119                                          context,
1120                                          page_nr);
1121 }
1122
1123
1124
1125 static void
1126 psppire_syntax_window_print (PsppireSyntaxWindow *window)
1127 {
1128   GtkPrintOperationResult res;
1129
1130   GtkPrintOperation *print = gtk_print_operation_new ();
1131
1132   if (window->print_settings != NULL)
1133     gtk_print_operation_set_print_settings (print, window->print_settings);
1134
1135
1136   g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), window);
1137   g_signal_connect (print, "end_print", G_CALLBACK (end_print),     window);
1138   g_signal_connect (print, "draw_page", G_CALLBACK (draw_page),     window);
1139   g_signal_connect (print, "paginate", G_CALLBACK (paginate),       window);
1140
1141   res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
1142                                  GTK_WINDOW (window), NULL);
1143
1144   if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
1145     {
1146       if (window->print_settings != NULL)
1147         g_object_unref (window->print_settings);
1148       window->print_settings = g_object_ref (gtk_print_operation_get_print_settings (print));
1149     }
1150
1151   g_object_unref (print);
1152 }