Relocate the directory in which the lang file is installed
[pspp] / src / ui / gui / psppire-syntax-window.c
index e3aaa75681930af7c7b3009c225827dab95346ac..7c70cbcba80688be52e5e4fb8015b7a900d5dc0b 100644 (file)
@@ -1,5 +1,5 @@
 /* PSPPIRE - a graphical user interface for PSPP.
-   Copyright (C) 2008, 2009  Free Software Foundation
+   Copyright (C) 2008, 2009, 2010  Free Software Foundation
 
    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
 
 #include <config.h>
 
+#include "relocatable.h"
+
 #include <gtk/gtksignal.h>
 #include <gtk/gtkbox.h>
+#include "executor.h"
 #include "helper.h"
 
+#include <gtksourceview/gtksourcebuffer.h>
+#include <gtksourceview/gtksourcelanguage.h>
+#include <gtksourceview/gtksourcelanguagemanager.h>
+#include <gtksourceview/gtksourceprintcompositor.h>
+
 #include <libpspp/message.h>
 #include <stdlib.h>
 
 #include "psppire.h"
-#include "psppire-syntax-window.h"
 
 #include "psppire-data-window.h"
 #include "psppire-window-register.h"
 #include "psppire.h"
-#include "about.h"
+#include "help-menu.h"
 #include "psppire-syntax-window.h"
 #include "syntax-editor-source.h"
 #include <language/lexer/lexer.h>
 
+#include "xalloc.h"
+
 #include <gettext.h>
 #define _(msgid) gettext (msgid)
 #define N_(msgid) msgid
@@ -99,6 +108,27 @@ psppire_syntax_window_finalize (GObject *object)
 static void
 psppire_syntax_window_class_init (PsppireSyntaxWindowClass *class)
 {
+  GtkSourceLanguageManager *lm = gtk_source_language_manager_get_default ();
+
+  const gchar * const *existing_paths =  gtk_source_language_manager_get_search_path (lm);
+
+  const gchar **new_paths = g_strdupv (existing_paths);
+
+  int n = g_strv_length (existing_paths);
+
+  new_paths = g_realloc (new_paths, (n+1) * sizeof (*new_paths));
+
+  new_paths[n] = g_strdup (relocate (PKGDATADIR));
+  new_paths[n+1] = NULL;
+
+  lm = gtk_source_language_manager_new ();
+  gtk_source_language_manager_set_search_path (lm, new_paths);
+
+  class->lan = gtk_source_language_manager_get_language (lm, "pspp");
+
+  if (class->lan == NULL)
+    g_warning ("pspp.lang file not found.  Syntax highlighting will not be available.");
+
   parent_class = g_type_class_peek_parent (class);
 }
 
@@ -107,7 +137,6 @@ static void
 psppire_syntax_window_base_init (PsppireSyntaxWindowClass *class)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (class);
-
   object_class->finalize = psppire_syntax_window_finalize;
 }
 
@@ -126,7 +155,7 @@ editor_execute_syntax (const PsppireSyntaxWindow *sw, GtkTextIter start,
 {
   PsppireWindow *win = PSPPIRE_WINDOW (sw);
   const gchar *name = psppire_window_get_filename (win);
-  execute_syntax (create_syntax_editor_source (sw->buffer, start, stop, name));
+  execute_syntax (create_syntax_editor_source (GTK_TEXT_BUFFER (sw->buffer), start, stop, name));
 }
 
 
@@ -137,8 +166,8 @@ on_run_all (GtkMenuItem *menuitem, gpointer user_data)
   GtkTextIter begin, end;
   PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (user_data);
 
-  gtk_text_buffer_get_iter_at_offset (se->buffer, &begin, 0);
-  gtk_text_buffer_get_iter_at_offset (se->buffer, &end, -1);
+  gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (se->buffer), &begin, 0);
+  gtk_text_buffer_get_iter_at_offset (GTK_TEXT_BUFFER (se->buffer), &end, -1);
 
   editor_execute_syntax (se, begin, end);
 }
@@ -150,7 +179,7 @@ on_run_selection (GtkMenuItem *menuitem, gpointer user_data)
   GtkTextIter begin, end;
   PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (user_data);
 
-  if ( gtk_text_buffer_get_selection_bounds (se->buffer, &begin, &end) )
+  if ( gtk_text_buffer_get_selection_bounds (GTK_TEXT_BUFFER (se->buffer), &begin, &end) )
     editor_execute_syntax (se, begin, end);
 }
 
@@ -167,17 +196,17 @@ on_run_to_end (GtkMenuItem *menuitem, gpointer user_data)
   PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (user_data);
 
   /* Get the current line */
-  gtk_text_buffer_get_iter_at_mark (se->buffer,
+  gtk_text_buffer_get_iter_at_mark (GTK_TEXT_BUFFER (se->buffer),
                                    &here,
-                                   gtk_text_buffer_get_insert (se->buffer)
+                                   gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (se->buffer))
                                    );
 
   line = gtk_text_iter_get_line (&here) ;
 
   /* Now set begin and end to the start of this line, and end of buffer
      respectively */
-  gtk_text_buffer_get_iter_at_line (se->buffer, &begin, line);
-  gtk_text_buffer_get_iter_at_line (se->buffer, &end, -1);
+  gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &begin, line);
+  gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &end, -1);
 
   editor_execute_syntax (se, begin, end);
 }
@@ -195,17 +224,17 @@ on_run_current_line (GtkMenuItem *menuitem, gpointer user_data)
   PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (user_data);
 
   /* Get the current line */
-  gtk_text_buffer_get_iter_at_mark (se->buffer,
+  gtk_text_buffer_get_iter_at_mark (GTK_TEXT_BUFFER (se->buffer),
                                    &here,
-                                   gtk_text_buffer_get_insert (se->buffer)
+                                   gtk_text_buffer_get_insert (GTK_TEXT_BUFFER (se->buffer))
                                    );
 
   line = gtk_text_iter_get_line (&here) ;
 
   /* Now set begin and end to the start of this line, and start of
      following line respectively */
-  gtk_text_buffer_get_iter_at_line (se->buffer, &begin, line);
-  gtk_text_buffer_get_iter_at_line (se->buffer, &end, line + 1);
+  gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &begin, line);
+  gtk_text_buffer_get_iter_at_line (GTK_TEXT_BUFFER (se->buffer), &end, line + 1);
 
   editor_execute_syntax (se, begin, end);
 }
@@ -224,7 +253,7 @@ append_suffix (const gchar *filename)
       return g_strdup_printf ("%s.sps", filename);
     }
 
-  return strdup (filename);
+  return xstrdup (filename);
 }
 
 /*
@@ -237,7 +266,7 @@ save_editor_to_file (PsppireSyntaxWindow *se,
                     const gchar *filename,
                     GError **err)
 {
-  GtkTextBuffer *buffer = se->buffer;
+  GtkTextBuffer *buffer = GTK_TEXT_BUFFER (se->buffer);
   gboolean result ;
   GtkTextIter start, stop;
   gchar *text;
@@ -308,7 +337,7 @@ syntax_save_as (PsppireWindow *se)
 
       if ( ! save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err) )
        {
-         msg ( ME, err->message );
+         msg ( ME, "%s", err->message );
          g_error_free (err);
        }
 
@@ -333,7 +362,7 @@ syntax_save (PsppireWindow *se)
       save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err);
       if ( err )
        {
-         msg (ME, err->message);
+         msg (ME, "%s", err->message);
          g_error_free (err);
        }
     }
@@ -350,6 +379,21 @@ on_quit (GtkMenuItem *menuitem, gpointer    user_data)
 }
 
 
+static void
+load_and_show_syntax_window (GtkWidget *se, const gchar *filename)
+{
+  gboolean ok;
+
+  gtk_source_buffer_begin_not_undoable_action (PSPPIRE_SYNTAX_WINDOW (se)->buffer);
+  ok = psppire_window_load (PSPPIRE_WINDOW (se), filename);
+  gtk_source_buffer_end_not_undoable_action (PSPPIRE_SYNTAX_WINDOW (se)->buffer);
+
+  if (ok )
+    gtk_widget_show (se);
+  else
+    gtk_widget_destroy (se);
+}
+
 void
 create_syntax_window (void)
 {
@@ -357,56 +401,18 @@ create_syntax_window (void)
   gtk_widget_show (w);
 }
 
-/* Callback for the File->Open->Syntax menuitem */
 void
-open_syntax_window (GtkMenuItem *menuitem, gpointer parent)
+open_new_syntax_window (const char *file_name)
 {
-  GtkFileFilter *filter;
-  gint response;
-
-  GtkWidget *dialog =
-    gtk_file_chooser_dialog_new (_("Open Syntax"),
-                                GTK_WINDOW (parent),
-                                GTK_FILE_CHOOSER_ACTION_OPEN,
-                                GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
-                                GTK_STOCK_OPEN,   GTK_RESPONSE_ACCEPT,
-                                NULL);
-
-  filter = gtk_file_filter_new ();
-  gtk_file_filter_set_name (filter, _("Syntax Files (*.sps) "));
-  gtk_file_filter_add_pattern (filter, "*.sps");
-  gtk_file_filter_add_pattern (filter, "*.SPS");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-
-  filter = gtk_file_filter_new ();
-  gtk_file_filter_set_name (filter, _("All Files"));
-  gtk_file_filter_add_pattern (filter, "*");
-  gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
-
-  response = gtk_dialog_run (GTK_DIALOG (dialog));
-
-  if (response == GTK_RESPONSE_ACCEPT)
-    {
-      const char *file_name = gtk_file_chooser_get_filename
-       (GTK_FILE_CHOOSER (dialog));
-
-      GtkWidget *se = psppire_syntax_window_new ();
-
-      if ( psppire_window_load (PSPPIRE_WINDOW (se), file_name) ) 
-       gtk_widget_show (se);
-      else
-       gtk_widget_destroy (se);
-    }
+  GtkWidget *se = psppire_syntax_window_new ();
 
-  gtk_widget_destroy (dialog);
+  if ( file_name)
+    load_and_show_syntax_window (se, file_name);
 }
 
 
-static void
-on_text_changed (GtkTextBuffer *buffer, PsppireSyntaxWindow *window)
-{
-  gtk_statusbar_pop (GTK_STATUSBAR (window->sb), window->text_context);
-}
+
+static void psppire_syntax_window_print (PsppireSyntaxWindow *window);
 
 static void
 on_modified_changed (GtkTextBuffer *buffer, PsppireWindow *window)
@@ -417,18 +423,54 @@ on_modified_changed (GtkTextBuffer *buffer, PsppireWindow *window)
 
 extern struct source_stream *the_source_stream ;
 
+static void undo_redo_update (PsppireSyntaxWindow *window);
+static void undo_last_edit (PsppireSyntaxWindow *window);
+static void redo_last_edit (PsppireSyntaxWindow *window);
+
+static void
+on_text_changed (GtkTextBuffer *buffer, PsppireSyntaxWindow *window)
+{
+  gtk_statusbar_pop (GTK_STATUSBAR (window->sb), window->text_context);
+  undo_redo_update (window);
+}
+
 static void
 psppire_syntax_window_init (PsppireSyntaxWindow *window)
 {
   GtkBuilder *xml = builder_new ("syntax-editor.ui");
   GtkWidget *box = gtk_vbox_new (FALSE, 0);
 
-  GtkWidget *menubar = get_widget_assert (xml, "menubar2");
+  GtkWidget *menubar = get_widget_assert (xml, "menubar");
   GtkWidget *sw = get_widget_assert (xml, "scrolledwindow8");
 
-
   GtkWidget *text_view = get_widget_assert (xml, "syntax_text_view");
-  window->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
+
+  PsppireSyntaxWindowClass *class
+    = PSPPIRE_SYNTAX_WINDOW_CLASS (G_OBJECT_GET_CLASS (window));
+
+  window->print_settings = NULL;
+  window->undo_menuitem = get_action_assert (xml, "edit_undo");
+  window->redo_menuitem = get_action_assert (xml, "edit_redo");
+
+  if (class->lan)
+    window->buffer = gtk_source_buffer_new_with_language (class->lan);
+  else
+    window->buffer = gtk_source_buffer_new (NULL);
+
+  gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), GTK_TEXT_BUFFER (window->buffer));
+
+  g_object_set (window->buffer,
+               "highlight-matching-brackets", TRUE,
+               NULL);
+
+
+  g_object_set (text_view,
+               "show-line-numbers", TRUE,
+               "show-line-marks", TRUE,
+               "auto-indent", TRUE,
+               "indent-width", 4,
+               "highlight-current-line", TRUE,
+               NULL);
   window->lexer = lex_create (the_source_stream);
 
   window->sb = get_widget_assert (xml, "statusbar2");
@@ -439,6 +481,22 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window)
   g_signal_connect (window->buffer, "modified-changed",
                    G_CALLBACK (on_modified_changed), window);
 
+  g_signal_connect_swapped (get_action_assert (xml, "file_print"), "activate",
+                            G_CALLBACK (psppire_syntax_window_print), window);
+
+
+  g_signal_connect_swapped (window->undo_menuitem,
+                           "activate",
+                            G_CALLBACK (undo_last_edit),
+                           window);
+
+  g_signal_connect_swapped (window->redo_menuitem,
+                           "activate",
+                            G_CALLBACK (redo_last_edit),
+                           window);
+
+  undo_redo_update (window);
+
   connect_help (xml);
 
   gtk_container_add (GTK_CONTAINER (window), box);
@@ -456,15 +514,7 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window)
 
   gtk_widget_show_all (box);
 
-  g_signal_connect (get_action_assert (xml,"file_new_syntax"),
-                   "activate",
-                   G_CALLBACK (create_syntax_window),
-                   NULL);
-
-  g_signal_connect (get_action_assert (xml,"file_open_syntax"),
-                   "activate",
-                   G_CALLBACK (open_syntax_window),
-                   window);
+  g_signal_connect_swapped (get_action_assert (xml,"file_new_syntax"), "activate", G_CALLBACK (create_syntax_window), NULL);
 
 #if 0
   g_signal_connect (get_action_assert (xml,"file_new_data"),
@@ -473,21 +523,6 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window)
                    window);
 #endif
 
-  {
-    GtkAction *abt = get_action_assert (xml, "help_about");
-    g_object_set (abt, "stock-id", "gtk-about", NULL);
-
-    g_signal_connect (abt,
-                     "activate",
-                     G_CALLBACK (about_new),
-                     window);
-  }
-
-  g_signal_connect (get_action_assert (xml,"help_reference"),
-                   "activate",
-                   G_CALLBACK (reference_manual),
-                   NULL);
-
   g_signal_connect_swapped (get_action_assert (xml, "file_save"),
                    "activate",
                    G_CALLBACK (syntax_save),
@@ -529,11 +564,16 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window)
                    G_CALLBACK (psppire_window_minimise_all), NULL);
 
 
+
+
+
   {
   GtkUIManager *uim = GTK_UI_MANAGER (get_object_assert (xml, "uimanager1", GTK_TYPE_UI_MANAGER));
 
+  merge_help_menu (uim);
+
   PSPPIRE_WINDOW (window)->menu =
-    GTK_MENU_SHELL (gtk_ui_manager_get_widget (uim,"/ui/menubar2/windows/windows_minimise_all")->parent);
+    GTK_MENU_SHELL (gtk_ui_manager_get_widget (uim,"/ui/menubar/windows/windows_minimise_all")->parent);
   }
 
   g_object_unref (xml);
@@ -567,7 +607,7 @@ error_dialog (GtkWindow *w, const gchar *filename,  GError *err)
   g_object_set (dialog, "icon-name", "psppicon", NULL);
 
   gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
-                                           err->message);
+                                           "%s", err->message);
 
   gtk_dialog_run (GTK_DIALOG (dialog));
 
@@ -577,27 +617,43 @@ error_dialog (GtkWindow *w, const gchar *filename,  GError *err)
 /*
   Loads the buffer from the file called FILENAME
 */
-static gboolean
+gboolean
 syntax_load (PsppireWindow *window, const gchar *filename)
 {
   GError *err = NULL;
-  gchar *text;
+  gchar *text_locale = NULL;
+  gchar *text_utf8 = NULL;
+  gsize len_locale = -1;
+  gsize len_utf8 = -1;
   GtkTextIter iter;
   PsppireSyntaxWindow *sw = PSPPIRE_SYNTAX_WINDOW (window);
-
+  GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
   /* FIXME: What if it's a very big file ? */
-  if ( ! g_file_get_contents (filename, &text, NULL, &err) )
+  if ( ! g_file_get_contents (filename, &text_locale, &len_locale, &err) )
+    {
+      error_dialog (GTK_WINDOW (window), filename, err);
+      g_clear_error (&err);
+      return FALSE;
+    }
+
+  text_utf8 = g_locale_to_utf8 (text_locale, len_locale, NULL, &len_utf8, &err);
+
+  free (text_locale);
+
+  if ( text_utf8 == NULL )
     {
       error_dialog (GTK_WINDOW (window), filename, err);
       g_clear_error (&err);
       return FALSE;
     }
 
-  gtk_text_buffer_get_iter_at_line (sw->buffer, &iter, 0);
+  gtk_text_buffer_get_iter_at_line (buffer, &iter, 0);
 
-  gtk_text_buffer_insert (sw->buffer, &iter, text, -1);
+  gtk_text_buffer_insert (buffer, &iter, text_utf8, len_utf8);
 
-  gtk_text_buffer_set_modified (sw->buffer, FALSE);
+  gtk_text_buffer_set_modified (buffer, FALSE);
+
+  free (text_utf8);
 
   return TRUE;
 }
@@ -610,3 +666,113 @@ psppire_syntax_window_iface_init (PsppireWindowIface *iface)
   iface->save = syntax_save;
   iface->load = syntax_load;
 }
+
+\f
+
+static void
+undo_redo_update (PsppireSyntaxWindow *window)
+{
+  gtk_action_set_sensitive (window->undo_menuitem,
+                           gtk_source_buffer_can_undo (window->buffer));
+
+  gtk_action_set_sensitive (window->redo_menuitem,
+                           gtk_source_buffer_can_redo (window->buffer));
+}
+
+static void
+undo_last_edit (PsppireSyntaxWindow *window)
+{
+  gtk_source_buffer_undo (window->buffer);
+  undo_redo_update (window);
+}
+
+static void
+redo_last_edit (PsppireSyntaxWindow *window)
+{
+  gtk_source_buffer_redo (window->buffer);
+  undo_redo_update (window);
+}
+
+
+\f
+/* Printing related stuff */
+
+
+static void
+begin_print (GtkPrintOperation *operation,
+          GtkPrintContext   *context,
+          PsppireSyntaxWindow *window)
+{
+  window->compositor =
+    gtk_source_print_compositor_new (window->buffer);
+}
+
+
+static void
+end_print (GtkPrintOperation *operation,
+          GtkPrintContext   *context,
+          PsppireSyntaxWindow *window)
+{
+  g_object_unref (window->compositor);
+  window->compositor = NULL;
+}
+
+
+
+static gboolean
+paginate (GtkPrintOperation *operation,
+          GtkPrintContext   *context,
+          PsppireSyntaxWindow *window)
+{
+  if (gtk_source_print_compositor_paginate (window->compositor, context))
+    {
+      gint n_pages = gtk_source_print_compositor_get_n_pages (window->compositor);
+      gtk_print_operation_set_n_pages (operation, n_pages);
+        
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+draw_page (GtkPrintOperation *operation,
+           GtkPrintContext   *context,
+           gint               page_nr,
+          PsppireSyntaxWindow *window)
+{
+  gtk_source_print_compositor_draw_page (window->compositor, 
+                                        context,
+                                        page_nr);
+}
+
+
+
+static void
+psppire_syntax_window_print (PsppireSyntaxWindow *window)
+{
+  GtkPrintOperationResult res;
+
+  GtkPrintOperation *print = gtk_print_operation_new ();
+
+  if (window->print_settings != NULL) 
+    gtk_print_operation_set_print_settings (print, window->print_settings);
+
+
+  g_signal_connect (print, "begin_print", G_CALLBACK (begin_print), window);
+  g_signal_connect (print, "end_print", G_CALLBACK (end_print),     window);
+  g_signal_connect (print, "draw_page", G_CALLBACK (draw_page),     window);
+  g_signal_connect (print, "paginate", G_CALLBACK (paginate),       window);
+
+  res = gtk_print_operation_run (print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
+                                 GTK_WINDOW (window), NULL);
+
+  if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
+    {
+      if (window->print_settings != NULL)
+        g_object_unref (window->print_settings);
+      window->print_settings = g_object_ref (gtk_print_operation_get_print_settings (print));
+    }
+
+  g_object_unref (print);
+}