1 /*
2 * PostScript colour functions
3 *
4 * Copyright 1998 Huw D M Davies
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "psdrv.h"
22 #include "wine/debug.h"
23
24 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
25
26
27 /**********************************************************************
28 * PSDRV_CopyColor
29 *
30 * Copies col2 into col1. Return FALSE on error.
31 */
32 BOOL PSDRV_CopyColor(PSCOLOR *col1, PSCOLOR *col2)
33 {
34
35 switch(col2->type) {
36 case PSCOLOR_GRAY:
37 col1->value.gray.i = col2->value.gray.i;
38 break;
39
40 case PSCOLOR_RGB:
41 col1->value.rgb.r = col2->value.rgb.r;
42 col1->value.rgb.g = col2->value.rgb.g;
43 col1->value.rgb.b = col2->value.rgb.b;
44 break;
45
46 default:
47 ERR("Unknown colour type %d\n", col1->type);
48 return FALSE;
49 }
50
51 col1->type = col2->type;
52 return TRUE;
53 }
54
55
56 /**********************************************************************
57 * PSDRV_CreateColor
58 *
59 * Creates a PostScript colour from a COLORREF.
60 * Result is grey scale if ColorDevice field of ppd is CD_False else an
61 * rgb colour is produced.
62 */
63 void PSDRV_CreateColor( PSDRV_PDEVICE *physDev, PSCOLOR *pscolor,
64 COLORREF wincolor )
65 {
66 int ctype = wincolor >> 24;
67 float r, g, b;
68
69 if(ctype != 0 && ctype != 2)
70 FIXME("Colour is %08x\n", wincolor);
71
72 r = (wincolor & 0xff) / 256.0;
73 g = ((wincolor >> 8) & 0xff) / 256.0;
74 b = ((wincolor >> 16) & 0xff) / 256.0;
75
76 if(physDev->pi->ppd->ColorDevice != CD_False) {
77 pscolor->type = PSCOLOR_RGB;
78 pscolor->value.rgb.r = r;
79 pscolor->value.rgb.g = g;
80 pscolor->value.rgb.b = b;
81 } else {
82 pscolor->type = PSCOLOR_GRAY;
83 /* FIXME configurable */
84 pscolor->value.gray.i = r * 0.3 + g * 0.59 + b * 0.11;
85 }
86 return;
87 }
88
89
90 /***********************************************************************
91 * PSDRV_SetBkColor
92 */
93 COLORREF CDECL PSDRV_SetBkColor( PSDRV_PDEVICE *physDev, COLORREF color )
94 {
95 PSDRV_CreateColor(physDev, &physDev->bkColor, color);
96 return color;
97 }
98
99
100 /***********************************************************************
101 * PSDRV_SetTextColor
102 */
103 COLORREF CDECL PSDRV_SetTextColor( PSDRV_PDEVICE *physDev, COLORREF color )
104 {
105 PSDRV_CreateColor(physDev, &physDev->font.color, color);
106 physDev->font.set = FALSE;
107 return color;
108 }
109
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