1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
3 * LADI Session Handler (ladish)
5 * Copyright (C) 2010 Nedko Arnaudov <nedko@arnaudov.name>
7 **************************************************************************
8 * This file contains the canvas zoom related code
9 **************************************************************************
11 * LADI Session Handler is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * LADI Session Handler is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
23 * or write to the Free Software Foundation, Inc.,
24 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
29 #include "graph_view.h"
31 #define ZOOM_CHANGE 1.1
37 log_info("zoom 100%% request");
39 canvas
= get_current_canvas();
42 canvas_set_zoom(canvas
, 1.0);
50 log_info("zoom fit request");
52 canvas
= get_current_canvas();
55 canvas_set_zoom_fit(canvas
);
63 log_info("zoom in request");
65 canvas
= get_current_canvas();
68 canvas_set_zoom(canvas
, canvas_get_zoom(canvas
) * ZOOM_CHANGE
);
76 log_info("zoom out request");
78 canvas
= get_current_canvas();
81 canvas_set_zoom(canvas
, canvas_get_zoom(canvas
) / ZOOM_CHANGE
);