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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "access/font.h"
namespace Access {
byte Font::_fontColors[4];
Font::Font() {
_bitWidth = 0;
_height = 0;
}
Font::~Font() {
for (uint i = 0; i < _chars.size(); ++i)
_chars[i].free();
}
void Font::load(const int *fontIndex, const byte *fontData) {
assert(_chars.size() == 0);
int count = fontIndex[0];
_bitWidth = fontIndex[1];
_height = fontIndex[2];
_chars.resize(count);
for (int i = 0; i < count; ++i) {
const byte *pData = fontData + fontIndex[i + 3];
_chars[i].create(*pData++, _height, Graphics::PixelFormat::createFormatCLUT8());
for (int y = 0; y < _height; ++y) {
int bitsLeft = 0;
byte srcByte = 0;
byte pixel;
byte *pDest = (byte *)_chars[i].getBasePtr(0, y);
for (int x = 0; x < _chars[i].w; ++x, ++pDest) {
// Get the pixel
pixel = 0;
for (int pixelCtr = 0; pixelCtr < _bitWidth; ++pixelCtr, --bitsLeft) {
// No bits in current byte left, so get next byte
if (bitsLeft == 0) {
bitsLeft = 8;
srcByte = *pData++;
}
pixel = (pixel << 1) | (srcByte >> 7);
srcByte <<= 1;
}
// Write out the pixel
*pDest = pixel;
}
}
}
}
int Font::charWidth(char c) {
if (c < ' ')
return 0;
return _chars[c - ' '].w;
}
int Font::stringWidth(const Common::String &msg) {
int total = 0;
for (const char *c = msg.c_str(); *c != '\0'; ++c)
total += charWidth(*c);
return total;
}
bool Font::getLine(Common::String &s, int maxWidth, Common::String &line, int &width) {
assert(maxWidth > 0);
width = 0;
const char *src = s.c_str();
char c;
while ((c = *src) != '\0') {
if (c == '\r') {
// End of line, so return calculated line
line = Common::String(s.c_str(), src);
s = Common::String(src + 1);
return false;
}
++src;
width += charWidth(c);
if (width < maxWidth)
continue;
// Reached maximum allowed size
// If this was the last character of the string, let it go
if (*src == '\0') {
line = Common::String(s.c_str(), src);
s.clear();
return true;
}
// Work backwards to find space at the start of the current word
// as a point to split the line on
while (src >= s.c_str() && *src != ' ') {
width -= charWidth(*src);
--src;
}
if (src < s.c_str())
error("Could not fit line");
// Split the line around the space
line = Common::String(s.c_str(), src);
s = Common::String(src + 1);
return false;
}
// Return entire string
line = s;
s = Common::String();
return true;
}
void Font::drawString(ASurface *s, const Common::String &msg, const Common::Point &pt) {
Common::Point currPt = pt;
const char *msgP = msg.c_str();
while (*msgP) {
currPt.x += drawChar(s, *msgP, currPt);
++msgP;
}
}
int Font::drawChar(ASurface *s, char c, Common::Point &pt) {
Graphics::Surface &ch = _chars[c - ' '];
Graphics::Surface dest = s->getSubArea(Common::Rect(pt.x, pt.y, pt.x + ch.w, pt.y + ch.h));
// Loop through the lines of the character
for (int y = 0; y < ch.h; ++y) {
byte *pSrc = (byte *)ch.getBasePtr(0, y);
byte *pDest = (byte *)dest.getBasePtr(0, y);
// Loop through the horizontal pixels of the line
for (int x = 0; x < ch.w; ++x, ++pSrc, ++pDest) {
if (*pSrc != 0)
*pDest = _fontColors[*pSrc];
}
}
return ch.w;
}
/*------------------------------------------------------------------------*/
FontManager::FontManager() {
_printMaxX = 0;
Common::fill(&Font::_fontColors[0], &Font::_fontColors[4], 0);
}
} // End of namespace Access
|
