X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fui%2Fgui%2Fpsppire-syntax-window.c;h=b5cf0d3345d27cc45474bcc24e3cbe53c6562c0c;hb=fe8dc2171009e90d2335f159d05f7e6660e24780;hp=eea46eba303027c8a1647e611aa1dd453dba6521;hpb=2b998cd1a6d72214726d05cc050b816d131399e6;p=pspp-builds.git diff --git a/src/ui/gui/psppire-syntax-window.c b/src/ui/gui/psppire-syntax-window.c index eea46eba..b5cf0d33 100644 --- a/src/ui/gui/psppire-syntax-window.c +++ b/src/ui/gui/psppire-syntax-window.c @@ -1,5 +1,5 @@ /* PSPPIRE - a graphical user interface for PSPP. - Copyright (C) 2008, 2009, 2010 Free Software Foundation + Copyright (C) 2008, 2009, 2010, 2011 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 @@ -17,20 +17,32 @@ #include #include -#include "executor.h" -#include "helper.h" - -#include -#include #include -#include "help-menu.h" -#include "psppire.h" -#include "psppire-data-window.h" -#include "psppire-window-register.h" -#include "psppire-syntax-window.h" - -#include "xalloc.h" +#include +#include +#include +#include + + +#include "language/lexer/lexer.h" +#include "libpspp/encoding-guesser.h" +#include "libpspp/i18n.h" +#include "libpspp/message.h" +#include "ui/gui/executor.h" +#include "ui/gui/help-menu.h" +#include "ui/gui/helper.h" +#include "ui/gui/psppire-data-window.h" +#include "ui/gui/psppire-encoding-selector.h" +#include "ui/gui/psppire-syntax-window.h" +#include "ui/gui/psppire-syntax-window.h" +#include "ui/gui/psppire-window-register.h" +#include "ui/gui/psppire.h" +#include "ui/gui/psppire.h" + +#include "gl/localcharset.h" +#include "gl/xalloc.h" +#include "gl/xvasprintf.h" #include #define _(msgid) gettext (msgid) @@ -45,6 +57,53 @@ static void psppire_syntax_window_init (PsppireSyntaxWindow *synta static void psppire_syntax_window_iface_init (PsppireWindowIface *iface); +/* Properties */ +enum +{ + PROP_0, + PROP_ENCODING +}; + +static void +psppire_syntax_window_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + PsppireSyntaxWindow *window = PSPPIRE_SYNTAX_WINDOW (object); + + switch (prop_id) + { + case PROP_ENCODING: + g_free (window->encoding); + window->encoding = g_value_dup_string (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + }; +} + + +static void +psppire_syntax_window_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + PsppireSyntaxWindow *window = PSPPIRE_SYNTAX_WINDOW (object); + + switch (prop_id) + { + case PROP_ENCODING: + g_value_set_string (value, window->encoding); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + }; +} + GType psppire_syntax_window_get_type (void) { @@ -105,6 +164,9 @@ psppire_syntax_window_dispose (GObject *obj) if (sw->dispose_has_run) return; + g_free (sw->encoding); + sw->encoding = NULL; + clip_selection = gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_CLIPBOARD); clip_primary = gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_PRIMARY); @@ -124,11 +186,47 @@ psppire_syntax_window_dispose (GObject *obj) static void psppire_syntax_window_class_init (PsppireSyntaxWindowClass *class) { + GParamSpec *encoding_spec; GObjectClass *gobject_class = G_OBJECT_CLASS (class); + GtkSourceLanguageManager *lm = gtk_source_language_manager_get_default (); + + const gchar * const *existing_paths = gtk_source_language_manager_get_search_path (lm); + gchar **new_paths = g_strdupv ((gchar **)existing_paths); + int n = g_strv_length ((gchar **) existing_paths); + + new_paths = g_realloc (new_paths, (n + 2) * 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); + g_strfreev (new_paths); + + encoding_spec = + null_if_empty_param ("encoding", + "Character encoding", + "IANA character encoding in this syntax file", + NULL, + G_PARAM_CONSTRUCT | G_PARAM_READWRITE); + + parent_class = g_type_class_peek_parent (class); + + gobject_class->set_property = psppire_syntax_window_set_property; + gobject_class->get_property = psppire_syntax_window_get_property; gobject_class->dispose = psppire_syntax_window_dispose; + + g_object_class_install_property (gobject_class, + PROP_ENCODING, + encoding_spec); } @@ -136,7 +234,6 @@ static void psppire_syntax_window_base_init (PsppireSyntaxWindowClass *class) { GObjectClass *object_class = G_OBJECT_CLASS (class); - object_class->finalize = psppire_syntax_window_finalize; } @@ -155,33 +252,27 @@ editor_execute_syntax (const PsppireSyntaxWindow *sw, GtkTextIter start, { PsppireWindow *win = PSPPIRE_WINDOW (sw); struct lex_reader *reader; - gchar *text; - - text = gtk_text_buffer_get_text (sw->buffer, &start, &stop, FALSE); + gchar *text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (sw->buffer), &start, &stop, FALSE); reader = lex_reader_for_string (text); g_free (text); lex_reader_set_file_name (reader, psppire_window_get_filename (win)); - execute_syntax (reader); + execute_syntax (psppire_default_data_window (), reader); } - - - /* 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 (sw->buffer, &begin, &end) ) - gtk_text_buffer_delete (sw->buffer, &begin, &end); + if ( gtk_text_buffer_get_selection_bounds (buffer, &begin, &end) ) + gtk_text_buffer_delete (buffer, &begin, &end); } - - /* The syntax editor's clipboard deals only with text */ enum { SELECT_FMT_NULL, @@ -192,7 +283,7 @@ enum { static void selection_changed (PsppireSyntaxWindow *sw) { - gboolean sel = gtk_text_buffer_get_has_selection (sw->buffer); + gboolean sel = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (sw->buffer)); gtk_action_set_sensitive (sw->edit_copy, sel); gtk_action_set_sensitive (sw->edit_cut, sel); @@ -245,12 +336,13 @@ 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 (sw->buffer, begin, end) ) + if ( ! gtk_text_buffer_get_selection_bounds (buffer, begin, end) ) return FALSE; g_free (sw->cliptext); - sw->cliptext = gtk_text_buffer_get_text (sw->buffer, begin, end, FALSE); + sw->cliptext = gtk_text_buffer_get_text (buffer, begin, end, FALSE); clipboard = gtk_widget_get_clipboard (GTK_WIDGET (sw), GDK_SELECTION_CLIPBOARD); @@ -270,7 +362,7 @@ on_edit_cut (PsppireSyntaxWindow *sw) GtkTextIter begin, end; if ( set_clip (sw, &begin, &end)) - gtk_text_buffer_delete (sw->buffer, &begin, &end); + gtk_text_buffer_delete (GTK_TEXT_BUFFER (sw->buffer), &begin, &end); } static void @@ -299,7 +391,7 @@ contents_received_callback (GtkClipboard *clipboard, c = (gchar *) sd->data; - gtk_text_buffer_insert_at_cursor (syntax_window->buffer, + gtk_text_buffer_insert_at_cursor (GTK_TEXT_BUFFER (syntax_window->buffer), (gchar *) sd->data, sd->length); @@ -352,8 +444,8 @@ 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); } @@ -365,7 +457,7 @@ 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); } @@ -382,17 +474,17 @@ 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); } @@ -410,17 +502,17 @@ 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); } @@ -452,7 +544,8 @@ save_editor_to_file (PsppireSyntaxWindow *se, const gchar *filename, GError **err) { - GtkTextBuffer *buffer = se->buffer; + GtkTextBuffer *buffer = GTK_TEXT_BUFFER (se->buffer); + struct substring text_locale; gboolean result ; GtkTextIter start, stop; gchar *text; @@ -467,8 +560,13 @@ save_editor_to_file (PsppireSyntaxWindow *se, text = gtk_text_buffer_get_text (buffer, &start, &stop, FALSE); - result = g_file_set_contents (suffixedname, text, -1, err); + text_locale = recode_substring_pool (se->encoding, "UTF-8", ss_cstr (text), + NULL); + + result = g_file_set_contents (suffixedname, ss_data (text_locale), + ss_length (text_locale), err); + ss_dealloc (&text_locale); g_free (suffixedname); if ( result ) @@ -485,10 +583,12 @@ save_editor_to_file (PsppireSyntaxWindow *se, } -/* Callback for the File->SaveAs menuitem */ +/* PsppireWindow 'pick_Filename' callback. */ static void -syntax_save_as (PsppireWindow *se) +syntax_pick_filename (PsppireWindow *window) { + PsppireSyntaxWindow *se = PSPPIRE_SYNTAX_WINDOW (window); + const char *default_encoding; GtkFileFilter *filter; gint response; @@ -513,44 +613,47 @@ syntax_save_as (PsppireWindow *se) gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE); + + default_encoding = se->encoding != NULL ? se->encoding : locale_charset (); + gtk_file_chooser_set_extra_widget ( + GTK_FILE_CHOOSER (dialog), + psppire_encoding_selector_new (default_encoding, false)); + response = gtk_dialog_run (GTK_DIALOG (dialog)); if ( response == GTK_RESPONSE_ACCEPT ) { - GError *err = NULL; - char *filename = - gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog) ); - - if ( ! save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err) ) - { - msg ( ME, "%s", err->message ); - g_error_free (err); - } + gchar *encoding; + char *filename; + filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog) ); + psppire_window_set_filename (window, filename); free (filename); + + encoding = psppire_encoding_selector_get_encoding ( + gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (dialog))); + if (encoding != NULL) + { + g_free (se->encoding); + se->encoding = encoding; + } } gtk_widget_destroy (dialog); } -/* Callback for the File->Save menuitem */ +/* PsppireWindow 'save' callback. */ static void syntax_save (PsppireWindow *se) { const gchar *filename = psppire_window_get_filename (se); - - if ( filename == NULL ) - syntax_save_as (se); - else + GError *err = NULL; + save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err); + if ( err ) { - GError *err = NULL; - save_editor_to_file (PSPPIRE_SYNTAX_WINDOW (se), filename, &err); - if ( err ) - { - msg (ME, "%s", err->message); - g_error_free (err); - } + msg (ME, "%s", err->message); + g_error_free (err); } } @@ -565,29 +668,40 @@ 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) { - GtkWidget *w = psppire_syntax_window_new (); + GtkWidget *w = psppire_syntax_window_new (NULL); gtk_widget_show (w); } void -open_syntax_window (const char *file_name) +open_syntax_window (const char *file_name, const gchar *encoding) { - GtkWidget *se = psppire_syntax_window_new (); + GtkWidget *se = psppire_syntax_window_new (encoding); - if ( psppire_window_load (PSPPIRE_WINDOW (se), file_name) ) - gtk_widget_show (se); - else - gtk_widget_destroy (se); + 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) @@ -596,6 +710,17 @@ on_modified_changed (GtkTextBuffer *buffer, PsppireWindow *window) psppire_window_set_unsaved (window); } +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) { @@ -605,12 +730,39 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window) GtkWidget *menubar = get_widget_assert (xml, "menubar"); GtkWidget *sw = get_widget_assert (xml, "scrolledwindow8"); - GtkWidget *text_view = get_widget_assert (xml, "syntax_text_view"); + PsppireSyntaxWindowClass *class + = PSPPIRE_SYNTAX_WINDOW_CLASS (G_OBJECT_GET_CLASS (window)); + GtkClipboard *clip_selection = gtk_widget_get_clipboard (GTK_WIDGET (window), GDK_SELECTION_CLIPBOARD); GtkClipboard *clip_primary = gtk_widget_get_clipboard (GTK_WIDGET (window), GDK_SELECTION_PRIMARY); + 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->encoding = NULL; + window->cliptext = NULL; window->dispose_has_run = FALSE; @@ -619,7 +771,7 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window) window->edit_cut = get_action_assert (xml, "edit_cut"); window->edit_paste = get_action_assert (xml, "edit_paste"); - window->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view)); + window->buffer = GTK_SOURCE_BUFFER (gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view))); window->sb = get_widget_assert (xml, "statusbar2"); window->text_context = gtk_statusbar_get_context_id (GTK_STATUSBAR (window->sb), "Text Context"); @@ -630,6 +782,22 @@ 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); + window->sel_handler = g_signal_connect_swapped (clip_primary, "owner-change", G_CALLBACK (selection_changed), window); @@ -654,21 +822,24 @@ psppire_syntax_window_init (PsppireSyntaxWindow *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"), "activate", G_CALLBACK (create_data_window), window); -#endif + + g_signal_connect_swapped (get_action_assert (xml, "file_open"), + "activate", + G_CALLBACK (psppire_window_open), + window); g_signal_connect_swapped (get_action_assert (xml, "file_save"), "activate", - G_CALLBACK (syntax_save), + G_CALLBACK (psppire_window_save), window); g_signal_connect_swapped (get_action_assert (xml, "file_save_as"), "activate", - G_CALLBACK (syntax_save_as), + G_CALLBACK (psppire_window_save_as), window); g_signal_connect (get_action_assert (xml,"file_quit"), @@ -721,6 +892,9 @@ 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)); @@ -738,12 +912,11 @@ psppire_syntax_window_init (PsppireSyntaxWindow *window) GtkWidget* -psppire_syntax_window_new (void) +psppire_syntax_window_new (const char *encoding) { return GTK_WIDGET (g_object_new (psppire_syntax_window_get_type (), - /* TRANSLATORS: This will form a filename. Please avoid whitespace. */ - "filename", _("Syntax"), "description", _("Syntax Editor"), + "encoding", encoding, NULL)); } @@ -785,6 +958,9 @@ syntax_load (PsppireWindow *window, const gchar *filename) gsize len_utf8 = -1; GtkTextIter iter; PsppireSyntaxWindow *sw = PSPPIRE_SYNTAX_WINDOW (window); + GtkTextBuffer *buffer = GTK_TEXT_BUFFER (sw->buffer); + gchar *encoding; + char *mime_type; /* FIXME: What if it's a very big file ? */ if ( ! g_file_get_contents (filename, &text_locale, &len_locale, &err) ) @@ -794,8 +970,17 @@ syntax_load (PsppireWindow *window, const gchar *filename) return FALSE; } - text_utf8 = g_locale_to_utf8 (text_locale, len_locale, NULL, &len_utf8, &err); - + /* Determine the file's encoding and update sw->encoding. (The ordering is + important here because encoding_guess_whole_file() often returns its + argument instead of a copy of it.) */ + encoding = g_strdup (encoding_guess_whole_file (sw->encoding, text_locale, + len_locale)); + g_free (sw->encoding); + sw->encoding = encoding; + + text_utf8 = recode_substring_pool ("UTF-8", encoding, + ss_buffer (text_locale, len_locale), + NULL).string; free (text_locale); if ( text_utf8 == NULL ) @@ -805,14 +990,18 @@ syntax_load (PsppireWindow *window, const gchar *filename) 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_utf8, len_utf8); + 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); + mime_type = xasprintf ("text/x-spss-syntax; charset=%s", sw->encoding); + add_most_recent (filename, mime_type); + free (mime_type); + return TRUE; } @@ -822,6 +1011,117 @@ static void psppire_syntax_window_iface_init (PsppireWindowIface *iface) { iface->save = syntax_save; + iface->pick_filename = syntax_pick_filename; iface->load = syntax_load; } + + + +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); +} + + + +/* 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); +}