aboutsummaryrefslogtreecommitdiff
path: root/engines/sherlock/fonts.cpp
blob: 440e31915c441041601c3f9c0bf8089288db5a72 (plain)
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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
/* 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 "common/system.h"
#include "common/platform.h"
#include "sherlock/fonts.h"
#include "sherlock/image_file.h"
#include "sherlock/surface.h"
#include "sherlock/sherlock.h"

namespace Sherlock {

SherlockEngine *Fonts::_vm;
ImageFile *Fonts::_font;
int Fonts::_fontNumber;
int Fonts::_fontHeight;
int Fonts::_widestChar;
uint16 Fonts::_charCount;
byte Fonts::_yOffsets[255];

void Fonts::setVm(SherlockEngine *vm) {
	_vm = vm;
	_font = nullptr;
	_charCount = 0;
}

void Fonts::free() {
	delete _font;
}

void Fonts::setFont(int fontNum) {
	_fontNumber = fontNum;

	// Discard previous font
	delete _font;

	Common::String fontFilename;

	if (_vm->getPlatform() != Common::kPlatform3DO) {
		// PC
		// use FONT[number].VGS, which is a regular sherlock graphic file
		fontFilename = Common::String::format("FONT%d.VGS", fontNum + 1);

		// load font data
		_font = new ImageFile(fontFilename);
	} else {
		// 3DO
		switch (fontNum) {
		case 0:
		case 1:
			fontFilename = "helvetica14.font";
			break;
		case 2:
			fontFilename = "darts.font";
			break;
		default:
			error("setFont(): unsupported 3DO font number");
		}

		// load font data
		_font = new ImageFile3DO(fontFilename, kImageFile3DOType_Font);
	}

	_charCount = _font->size();
		
	// Iterate through the frames to find the widest and tallest font characters
	_fontHeight = _widestChar = 0;
	for (uint idx = 0; idx < _charCount; ++idx) {
		_fontHeight = MAX((uint16)_fontHeight, (*_font)[idx]._frame.h);
		_widestChar = MAX((uint16)_widestChar, (*_font)[idx]._frame.w);
	}

	// Initialize the Y offset table for the extended character set
	for (int idx = 0; idx < 255; ++idx) {
		_yOffsets[idx] = 0;

		if (IS_ROSE_TATTOO) {
			if ((idx >= 129 && idx < 135) || (idx >= 136 && idx < 143) || (idx >= 147 && idx < 155) || 
					(idx >= 156 && idx < 165))
				_yOffsets[idx] = 1;
			else if ((idx >= 143 && idx < 146) || idx == 165)
				_yOffsets[idx] = 2;
		}
	}
}

inline byte Fonts::translateChar(byte c) {
	switch (c) {
	case ' ':
		return 0; // translate to first actual character
	case 225:
		// This was done in the German interpreter
		// happens when talking to the kid in the 2nd room
		return 135; // special handling for 0xE1
	default:
		if (c >= 0x80) { // German SH1 version did this
			c--;
		}
		// Spanish SH1 did this (reverse engineered code)
		//if ((c >= 0xA0) && (c <= 0xAD) || (c == 0x82)) {
		//	c--;
		//}
		assert(c > 32); // anything above space is allowed
		return c - 33;
	}
}

void Fonts::writeString(Surface *surface, const Common::String &str,
		const Common::Point &pt, int overrideColor) {
	Common::Point charPos = pt;

	if (!_font)
		return;

	for (const char *curCharPtr = str.c_str(); *curCharPtr; ++curCharPtr) {
		byte curChar = *curCharPtr;

		if (curChar == ' ') {
			charPos.x += 5; // hardcoded space
			continue;
		}
		curChar = translateChar(curChar);

		assert(curChar < _charCount);
		ImageFrame &frame = (*_font)[curChar];
		surface->transBlitFrom(frame, Common::Point(charPos.x, charPos.y + _yOffsets[curChar]), false, overrideColor);
		charPos.x += frame._frame.w + 1;
	}
}

int Fonts::stringWidth(const Common::String &str) {
	int width = 0;

	if (!_font)
		return 0;

	for (const char *c = str.c_str(); *c; ++c)
		width += charWidth(*c);

	return width;
}

int Fonts::stringHeight(const Common::String &str) {
	int height = 0;

	if (!_font)
		return 0;

	for (const char *c = str.c_str(); *c; ++c)
		height = MAX(height, charHeight(*c));

	return height;
}

int Fonts::charWidth(unsigned char c) {
	byte curChar;

	if (!_font)
		return 0;

	if (c == ' ') {
		return 5; // hardcoded space
	}
	curChar = translateChar(c);

	if (curChar < _charCount)
		return (*_font)[curChar]._frame.w + 1;
	return 0;
}

int Fonts::charHeight(unsigned char c) {
	byte curChar;

	if (!_font)
		return 0;

	// Space is supposed to be handled like the first actual character (which is decimal 33)
	curChar = translateChar(c);

	assert(curChar < _charCount);
	const ImageFrame &img = (*_font)[curChar];
	return img._height + img._offset.y + 1;
}

} // End of namespace Sherlock