1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*
* Screentest - CRT/LCD monitor testing utility.
* http://screentest.sourceforge.net/
* Copyright (C) 2001 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
* Copyright (C) 2006-2007 Tobias Gruetzmacher <tobias@portfolio16.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gtk/gtk.h>
#include "callbacks.h"
#define GRID_STEP 64
#define GRID_STEP_MIN 2
static gint vertical_step;
static void vertical_init(G_GNUC_UNUSED GtkWidget * widget)
{
vertical_step = GRID_STEP;
}
static void vertical_cycle(G_GNUC_UNUSED GtkWidget * widget)
{
vertical_step /= 2;
if (vertical_step < GRID_STEP_MIN)
vertical_step = GRID_STEP;
}
static void vertical_draw(GtkWidget * widget)
{
GdkWindow *win = widget->window;
gint w, h;
gint i;
gint d;
gdk_window_get_size(win, &w, &h);
d = w / 4;
if (d > h / 4)
d = h / 4;
for (i = ((w - 1) % vertical_step) / 2; i < w; i += vertical_step)
gdk_draw_line(win, gc, i, 0, i, h - 1);
}
struct test_ops vertical_ops = {
init:vertical_init,
draw:vertical_draw,
cycle:vertical_cycle,
close:NULL
};
|
