+ struct lex_reader *reader = lex_reader_for_gtk_text_buffer (GTK_TEXT_BUFFER (sw->buffer), start, stop);
+
+ lex_reader_set_file_name (reader, psppire_window_get_filename (win));
+
+ execute_syntax (psppire_default_data_window (), reader);
+}
+\f
+/* Delete the currently selected text */
+static void
+on_edit_delete (PsppireSyntaxWindow *sw)
+{
+ GtkTextIter begin, end;
+ GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
+
+ if (gtk_text_buffer_get_selection_bounds (buffer, &begin, &end))
+ gtk_text_buffer_delete (buffer, &begin, &end);
+}
+
+/* Create and run a dialog to collect the search string.
+ In future this might be expanded to include options, for example
+ backward searching, case sensitivity etc. */
+static const char *
+get_search_text (PsppireSyntaxWindow *parent)
+{
+ const char *search_text = NULL;
+ GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL;
+ GtkWidget *dialog = gtk_dialog_new_with_buttons (_("Text Search"),
+ GTK_WINDOW (parent),
+ flags,
+ _("_OK"),
+ GTK_RESPONSE_OK,
+ _("_Cancel"),
+ GTK_RESPONSE_CANCEL,
+ NULL);
+
+ GtkWidget *content_area =
+ gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+ GtkWidget *box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
+ GtkWidget *label = gtk_label_new (_("Text to search for:"));
+ GtkWidget *entry = gtk_entry_new_with_buffer (parent->search_text_buffer);
+
+ /* Add the label, and show everything we have added. */
+ gtk_container_add (GTK_CONTAINER (content_area), box);
+ gtk_container_add (GTK_CONTAINER (box), label);
+ gtk_container_add (GTK_CONTAINER (box), entry);
+ gtk_widget_show_all (content_area);
+
+ int result = gtk_dialog_run (GTK_DIALOG (dialog));
+ switch (result)
+ {
+ case GTK_RESPONSE_OK:
+ search_text = gtk_entry_get_text (GTK_ENTRY (entry));
+ break;
+ default:
+ search_text = NULL;
+ };
+
+ gtk_widget_destroy (dialog);
+ return search_text;
+}
+
+
+/* What to do when the Find menuitem is called. */
+static void
+on_edit_find (PsppireSyntaxWindow *sw)
+{
+ GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
+ GtkTextIter begin;
+ GtkTextIter loc;
+ const char *target = get_search_text (sw);
+
+ if (target == NULL)
+ return;
+
+ /* This is a wrap-around search. So start searching one
+ character after the current char. */
+ GtkTextMark *mark = gtk_text_buffer_get_insert (buffer);
+ gtk_text_buffer_get_iter_at_mark (buffer, &begin, mark);
+ gtk_text_iter_forward_char (&begin);
+ if (gtk_text_iter_forward_search (&begin, target, 0,
+ &loc, 0, 0))
+ {
+ gtk_text_buffer_place_cursor (buffer, &loc);
+ }
+ else
+ {
+ /* If not found, then continue the search from the top
+ of the buffer. */
+ gtk_text_buffer_get_start_iter (buffer, &begin);
+ if (gtk_text_iter_forward_search (&begin, target, 0,
+ &loc, 0, 0))
+ {
+ gtk_text_buffer_place_cursor (buffer, &loc);
+ }
+ }
+}
+
+
+/* The syntax editor's clipboard deals only with text */
+enum {
+ SELECT_FMT_NULL,
+ SELECT_FMT_TEXT,
+};
+
+
+static void
+selection_changed (PsppireSyntaxWindow *sw)
+{
+ gboolean sel = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (sw->buffer));
+
+ g_object_set (sw->edit_copy, "enabled", sel, NULL);
+ g_object_set (sw->edit_cut, "enabled", sel, NULL);
+ g_object_set (sw->edit_delete, "enabled", sel, NULL);
+}
+
+/* The callback which runs when something request clipboard data */
+static void
+clipboard_get_cb (GtkClipboard *clipboard,
+ GtkSelectionData *selection_data,
+ guint info,
+ gpointer data)
+{
+ PsppireSyntaxWindow *sw = data;
+ g_assert (info == SELECT_FMT_TEXT);
+
+ gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data),
+ 8,
+ (const guchar *) sw->cliptext, strlen (sw->cliptext));
+
+}
+
+static void
+clipboard_clear_cb (GtkClipboard *clipboard,
+ gpointer data)
+{
+ PsppireSyntaxWindow *sw = data;
+ g_free (sw->cliptext);
+ sw->cliptext = NULL;
+}
+
+
+static const GtkTargetEntry targets[] = {
+ { "UTF8_STRING", 0, SELECT_FMT_TEXT },
+ { "STRING", 0, SELECT_FMT_TEXT },
+ { "TEXT", 0, SELECT_FMT_TEXT },
+ { "COMPOUND_TEXT", 0, SELECT_FMT_TEXT },
+ { "text/plain;charset=utf-8", 0, SELECT_FMT_TEXT },
+ { "text/plain", 0, SELECT_FMT_TEXT },
+};
+
+
+/*
+ Store a clip containing the currently selected text.
+ Returns true iff something was set.
+ As a side effect, begin and end will be set to indicate
+ the limits of the selected text.
+*/
+static gboolean
+set_clip (PsppireSyntaxWindow *sw, GtkTextIter *begin, GtkTextIter *end)
+{
+ GtkClipboard *clipboard ;
+ GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer);
+
+ if (! gtk_text_buffer_get_selection_bounds (buffer, begin, end))
+ return FALSE;
+
+ g_free (sw->cliptext);
+ sw->cliptext = gtk_text_buffer_get_text (buffer, begin, end, FALSE);
+
+ clipboard =
+ gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_CLIPBOARD);
+
+ if (!gtk_clipboard_set_with_owner (clipboard, targets,
+ G_N_ELEMENTS (targets),
+ clipboard_get_cb, clipboard_clear_cb,
+ G_OBJECT (sw)))
+ clipboard_clear_cb (clipboard, sw);
+
+ return TRUE;
+}
+
+static void
+on_edit_cut (PsppireSyntaxWindow *sw)
+{
+ GtkTextIter begin, end;
+
+ if (set_clip (sw, &begin, &end))
+ gtk_text_buffer_delete (GTK_TEXT_BUFFER (sw->buffer), &begin, &end);
+}
+
+static void
+on_edit_copy (PsppireSyntaxWindow *sw)
+{
+ GtkTextIter begin, end;
+
+ set_clip (sw, &begin, &end);
+}
+
+static void
+on_edit_paste (PsppireSyntaxWindow *sw)
+{
+ GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (sw));
+ GtkClipboard *clipboard =
+ gtk_clipboard_get_for_display (display, GDK_SELECTION_CLIPBOARD);
+
+ gtk_text_buffer_paste_clipboard (GTK_TEXT_BUFFER (sw->buffer), clipboard, NULL, TRUE);