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
|
/*
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This is a plug-in for GIMP.
*
* Colormap-Rotation plug-in. Exchanges two color ranges.
*
* Copyright (C) 1999 Sven Anders (anderss@fmi.uni-passau.de)
* Based on code from Pavel Grinfeld (pavel@ml.com)
*
*
* 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
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
/*----------------------------------------------------------------------------
* Change log:
*
* Version 2.0, 04 April 1999.
* Nearly complete rewrite, made plug-in stable.
* (Works with GIMP 1.1 and GTK+ 1.2)
*
* Version 1.0, 27 March 1997.
* Initial (unstable) release by Pavel Grinfeld
*
*----------------------------------------------------------------------------*/
/* Global defines */
#define RADIUS 60
#define MARGIN 4
#define SUM (2*RADIUS + 2*MARGIN)
#define CENTER (SUM/2)
#define GRAY_RADIUS 60
#define GRAY_MARGIN 3
#define GRAY_SUM (2*GRAY_RADIUS + 2*GRAY_MARGIN)
#define GRAY_CENTER (GRAY_SUM/2)
#define LITTLE_RADIUS 3
#define EACH_OR_BOTH 0.3
void color_rotate_draw_little_circle (cairo_t *cr,
gfloat hue,
gfloat satur);
void color_rotate_draw_large_circle (cairo_t *cr,
gfloat gray_sat);
void color_rotate_draw_arrows (cairo_t *cr,
RcmAngle *angle);
|
