1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "common/file.h"
24
25 #include "sludge/fonttext.h"
26 #include "sludge/graphics.h"
27 #include "sludge/moreio.h"
28 #include "sludge/newfatal.h"
29 #include "sludge/sludge.h"
30 #include "sludge/version.h"
31
32 namespace Sludge {
33
TextManager()34 TextManager::TextManager() {
35 init();
36 }
37
~TextManager()38 TextManager::~TextManager() {
39 kill();
40 }
41
init()42 void TextManager::init() {
43 _theFont.total = 0;
44 _theFont.sprites = nullptr;
45
46 _fontHeight = 0;
47 _numFontColours = 0;
48 _loadedFontNum = 0;
49 _fontSpace = -1;
50
51 _pastePalette.init();
52 _fontTable.clear();
53 }
54
kill()55 void TextManager::kill() {
56 GraphicsManager::forgetSpriteBank(_theFont);
57 _pastePalette.kill();
58 }
59
isInFont(const Common::String & theText)60 bool TextManager::isInFont(const Common::String &theText) {
61 if (_fontTable.empty())
62 return 0;
63 if (theText.empty())
64 return 0;
65
66 Common::U32String str32 = theText.decode(Common::kUtf8);
67
68 // We don't want to compare strings. Only single characters allowed!
69 if (str32.size() > 1)
70 return false;
71
72 uint32 c = str32[0];
73
74 // check if font order contains the utf8 char
75 return _fontOrder.contains(c);
76 }
77
stringLength(const Common::String & theText)78 int TextManager::stringLength(const Common::String &theText) {
79 Common::U32String str32 = theText.decode(Common::kUtf8);
80 return str32.size();
81 }
82
stringWidth(const Common::String & theText)83 int TextManager::stringWidth(const Common::String &theText) {
84 int xOff = 0;
85
86 if (_fontTable.empty())
87 return 0;
88
89 Common::U32String str32 = theText.decode(Common::kUtf8);
90
91 for (uint i = 0; i < str32.size(); ++i) {
92 uint32 c = str32[i];
93 xOff += _theFont.sprites[fontInTable(c)].surface.w + _fontSpace;
94 }
95
96 return xOff;
97 }
98
pasteString(const Common::String & theText,int xOff,int y,SpritePalette & thePal)99 void TextManager::pasteString(const Common::String &theText, int xOff, int y, SpritePalette &thePal) {
100 if (_fontTable.empty())
101 return;
102
103 xOff += (int)((float)(_fontSpace >> 1) / g_sludge->_gfxMan->getCamZoom());
104
105 Common::U32String str32 = theText.decode(Common::kUtf8);
106
107 for (uint32 i = 0; i < str32.size(); ++i) {
108 uint32 c = str32[i];
109 Sprite *mySprite = &_theFont.sprites[fontInTable(c)];
110 g_sludge->_gfxMan->fontSprite(xOff, y, *mySprite, thePal);
111 xOff += (int)((double)(mySprite->surface.w + _fontSpace) / g_sludge->_gfxMan->getCamZoom());
112 }
113 }
114
pasteStringToBackdrop(const Common::String & theText,int xOff,int y)115 void TextManager::pasteStringToBackdrop(const Common::String &theText, int xOff, int y) {
116 if (_fontTable.empty())
117 return;
118
119 Common::U32String str32 = theText.decode(Common::kUtf8);
120
121 xOff += _fontSpace >> 1;
122 for (uint32 i = 0; i < str32.size(); ++i) {
123 uint32 c = str32[i];
124 Sprite *mySprite = &_theFont.sprites[fontInTable(c)];
125 g_sludge->_gfxMan->pasteSpriteToBackDrop(xOff, y, *mySprite, _pastePalette);
126 xOff += mySprite->surface.w + _fontSpace;
127 }
128 }
129
burnStringToBackdrop(const Common::String & theText,int xOff,int y)130 void TextManager::burnStringToBackdrop(const Common::String &theText, int xOff, int y) {
131 if (_fontTable.empty())
132 return;
133
134 Common::U32String str32 = theText.decode(Common::kUtf8);
135
136 xOff += _fontSpace >> 1;
137 for (uint i = 0; i < str32.size(); ++i) {
138 uint32 c = str32[i];
139 Sprite *mySprite = &_theFont.sprites[fontInTable(c)];
140 g_sludge->_gfxMan->burnSpriteToBackDrop(xOff, y, *mySprite, _pastePalette);
141 xOff += mySprite->surface.w + _fontSpace;
142 }
143 }
144
loadFont(int filenum,const Common::String & charOrder,int h)145 bool TextManager::loadFont(int filenum, const Common::String &charOrder, int h) {
146 _fontOrder = charOrder.decode(Common::kUtf8);
147
148 g_sludge->_gfxMan->forgetSpriteBank(_theFont);
149
150 _loadedFontNum = filenum;
151
152 // get max value among all utf8 chars
153 Common::U32String fontOrderString = _fontOrder;
154
155 // create an index table from utf8 char to the index
156 if (!_fontTable.empty()) {
157 _fontTable.clear();
158 }
159
160 for (uint i = 0; i < fontOrderString.size(); ++i) {
161 uint32 c = fontOrderString[i];
162 _fontTable[c] = i;
163 }
164
165 if (!g_sludge->_gfxMan->loadSpriteBank(filenum, _theFont, true)) {
166 fatal("Can't load font");
167 return false;
168 }
169
170 _numFontColours = _theFont.myPalette.total;
171 _fontHeight = h;
172 return true;
173 }
174
175 // load & save
saveFont(Common::WriteStream * stream)176 void TextManager::saveFont(Common::WriteStream *stream) {
177 stream->writeByte(!_fontTable.empty());
178 if (!_fontTable.empty()) {
179 stream->writeUint16BE(_loadedFontNum);
180 stream->writeUint16BE(_fontHeight);
181 writeString(_fontOrder.encode(Common::kUtf8), stream);
182 }
183 stream->writeSint16LE(_fontSpace);
184 }
185
loadFont(int ssgVersion,Common::SeekableReadStream * stream)186 void TextManager::loadFont(int ssgVersion, Common::SeekableReadStream *stream) {
187 bool fontLoaded = stream->readByte();
188 int fontNum = 0;
189 Common::String charOrder = "";
190 if (fontLoaded) {
191 fontNum = stream->readUint16BE();
192 _fontHeight = stream->readUint16BE();
193
194 if (ssgVersion < VERSION(2, 2)) {
195 char *tmp = new char[257];
196 for (int a = 0; a < 256; a++) {
197 int x = stream->readByte();
198 tmp[x] = a;
199 }
200 tmp[256] = 0;
201 charOrder = tmp;
202 delete []tmp;
203 } else {
204 charOrder = readString(stream);
205 }
206 }
207 loadFont(fontNum, charOrder, _fontHeight);
208
209 _fontSpace = stream->readSint16LE();
210 }
211
212 } // End of namespace Sludge
213