aboutsummaryrefslogtreecommitdiff
path: root/engines/sci/graphics/text16.cpp
blob: 21605ccb8e8e23d2ee65bcfd38734d91ae13c629 (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
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/util.h"
#include "common/stack.h"
#include "graphics/primitives.h"

#include "sci/sci.h"
#include "sci/engine/state.h"
#include "sci/graphics/cache.h"
#include "sci/graphics/coordadjuster.h"
#include "sci/graphics/ports.h"
#include "sci/graphics/paint16.h"
#include "sci/graphics/font.h"
#include "sci/graphics/screen.h"
#include "sci/graphics/text16.h"

namespace Sci {

GfxText16::GfxText16(ResourceManager *resMan, GfxCache *cache, GfxPorts *ports, GfxPaint16 *paint16, GfxScreen *screen)
	: _resMan(resMan), _cache(cache), _ports(ports), _paint16(paint16), _screen(screen) {
	init();
}

GfxText16::~GfxText16() {
}

void GfxText16::init() {
	_font = NULL;
	_codeFonts = NULL;
	_codeFontsCount = 0;
	_codeColors = NULL;
	_codeColorsCount = 0;
}

GuiResourceId GfxText16::GetFontId() {
	return _ports->_curPort->fontId;
}

GfxFont *GfxText16::GetFont() {
	if ((_font == NULL) || (_font->getResourceId() != _ports->_curPort->fontId))
		_font = _cache->getFont(_ports->_curPort->fontId);

	return _font;
}

void GfxText16::SetFont(GuiResourceId fontId) {
	if ((_font == NULL) || (_font->getResourceId() != fontId))
		_font = _cache->getFont(fontId);

	_ports->_curPort->fontId = _font->getResourceId();
	_ports->_curPort->fontHeight = _font->getHeight();
}

void GfxText16::ClearChar(int16 chr) {
	if (_ports->_curPort->penMode != 1)
		return;
	Common::Rect rect;
	rect.top = _ports->_curPort->curTop;
	rect.bottom = rect.top + _ports->_curPort->fontHeight;
	rect.left = _ports->_curPort->curLeft;
	rect.right = rect.left + GetFont()->getCharWidth(chr);
	_paint16->eraseRect(rect);
}

// This internal function gets called as soon as a '|' is found in a text. It
// will process the encountered code and set new font/set color. We only support
// one-digit codes currently, don't know if multi-digit codes are possible.
// Returns textcode character count.
int16 GfxText16::CodeProcessing(const char *&text, GuiResourceId orgFontId, int16 orgPenColor, bool doingDrawing) {
	const char *textCode = text;
	int16 textCodeSize = 0;
	char curCode;
	signed char curCodeParm;

	// Find the end of the textcode
	while ((++textCodeSize) && (*text != 0) && (*text++ != 0x7C)) { }

	// possible TextCodes:
	//  c -> sets textColor to current port pen color
	//  cX -> sets textColor to _textColors[X-1]
	curCode = textCode[0];
	curCodeParm = textCode[1];
	if (isdigit(curCodeParm)) {
		curCodeParm -= '0';
	} else {
		curCodeParm = -1;
	}
	switch (curCode) {
	case 'c': // set text color
		if (curCodeParm == -1) {
			_ports->_curPort->penClr = orgPenColor;
		} else {
			if (curCodeParm < _codeColorsCount) {
				_ports->_curPort->penClr = _codeColors[curCodeParm];
			}
		}
		break;
	case 'f': // set text font
		if (curCodeParm == -1) {
			SetFont(orgFontId);
		} else {
			if (curCodeParm < _codeFontsCount) {
				SetFont(_codeFonts[curCodeParm]);
			}
		}
		break;
	case 'r': // reference (used in pepper)
		if (doingDrawing) {
			if (_codeRefTempRect.top == -1) {
				// Starting point
				_codeRefTempRect.top = _ports->_curPort->curTop;
				_codeRefTempRect.left = _ports->_curPort->curLeft;
			} else {
				// End point reached
				_codeRefTempRect.bottom = _ports->_curPort->curTop + _ports->_curPort->fontHeight;
				_codeRefTempRect.right = _ports->_curPort->curLeft;
				_codeRefRects.push_back(_codeRefTempRect);
				_codeRefTempRect.left = _codeRefTempRect.top = -1;
			}
		}
		break;
	}
	return textCodeSize;
}

static const uint16 text16_punctuationSjis[] = {
	0x9F82, 0xA182, 0xA382, 0xA582, 0xA782, 0xC182, 0xA782, 0xC182, 0xE182, 0xE382, 0xE582, 0xEC82,
	0x4083, 0x4283, 0x4483, 0x4683, 0x4883, 0x6283, 0x8383, 0x8583, 0x8783, 0x8E83, 0x9583, 0x9683,
	0x5B81, 0x4181, 0x4281, 0x7681, 0x7881, 0x4981, 0x4881, 0
};

// return max # of chars to fit maxwidth with full words, does not include
// breaking space
int16 GfxText16::GetLongest(const char *text, int16 maxWidth, GuiResourceId orgFontId) {
	uint16 curChar = 0;
	int16 maxChars = 0, curCharCount = 0;
	uint16 width = 0;
	GuiResourceId previousFontId = GetFontId();
	int16 previousPenColor = _ports->_curPort->penClr;

	GetFont();
	if (!_font)
		return 0;

	while (width <= maxWidth) {
		curChar = (*(const byte *)text++);
		if (_font->isDoubleByte(curChar)) {
			curChar |= (*(const byte *)text++) << 8;
			curCharCount++;
		}
		switch (curChar) {
		case 0x7C:
			if (getSciVersion() >= SCI_VERSION_1_1) {
				curCharCount++;
				curCharCount += CodeProcessing(text, orgFontId, previousPenColor, false);
				continue;
			}
			break;

		// We need to add 0xD, 0xA and 0xD 0xA to curCharCount and then exit
		//  which means, we split text like
		//  'Mature, experienced software analyst available.' 0xD 0xA
		//  'Bug installation a proven speciality. "No version too clean."' (normal game text, this is from lsl2)
		//   and 0xA '-------' 0xA (which is the official sierra subtitle separator)
		//  Sierra did it the same way.
		case 0xD:
			// Check, if 0xA is following, if so include it as well
			if ((*(const unsigned char *)text) == 0xA)
				curCharCount++;
			// it's meant to pass through here
		case 0xA:
		case 0x9781: // this one is used by SQ4/japanese as line break as well
			curCharCount++;
			// and it's also meant to pass through here
		case 0:
			SetFont(previousFontId);
			_ports->penColor(previousPenColor);
			return curCharCount;

		case ' ':
			maxChars = curCharCount; // return count up to (but not including) breaking space
			break;
		}
		width += _font->getCharWidth(curChar);
		curCharCount++;
	}
	if (maxChars == 0) {
		// Text w/o space, supposingly kanji
		maxChars = curCharCount;

		uint16 nextChar;

		// We remove the last char only, if maxWidth was actually equal width
		// before adding the last char. Otherwise we won't get the same cutting
		// as in sierra pc98 sci. Note: changing the while() instead will NOT
		// WORK. it would break all sorts of regular sci games.
		if (maxWidth == (width - _font->getCharWidth(curChar))) {
			maxChars--;
			if (curChar > 0xFF)
				maxChars--;
			nextChar = curChar;
		} else {
			nextChar = (*(const byte *)text++);
			if (_font->isDoubleByte(nextChar))
				nextChar |= (*(const byte *)text++) << 8;
		}
		// sierra checked the following character against a punctuation kanji table
		if (nextChar > 0xFF) {
			// if the character is punctuation, we go back one character
			uint nonBreakingNr = 0;
			while (text16_punctuationSjis[nonBreakingNr]) {
				if (text16_punctuationSjis[nonBreakingNr] == nextChar) {
					maxChars--;
					if (curChar > 0xFF)
						maxChars--; // go back 2 chars, when last char was double byte
					break;
				}
				nonBreakingNr++;
			}
		}
	}
	SetFont(previousFontId);
	_ports->penColor(previousPenColor);
	return maxChars;
}

void GfxText16::Width(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight, bool restoreFont) {
	uint16 curChar;
	GuiResourceId previousFontId = GetFontId();
	int16 previousPenColor = _ports->_curPort->penClr;

	textWidth = 0; textHeight = 0;

	GetFont();
	if (_font) {
		text += from;
		while (len--) {
			curChar = (*(const byte *)text++);
			if (_font->isDoubleByte(curChar)) {
				curChar |= (*(const byte *)text++) << 8;
				len--;
			}
			switch (curChar) {
			case 0x0A:
			case 0x0D:
			case 0x9781: // this one is used by SQ4/japanese as line break as well
				textHeight = MAX<int16> (textHeight, _ports->_curPort->fontHeight);
				break;
			case 0x7C:
				if (getSciVersion() >= SCI_VERSION_1_1) {
					len -= CodeProcessing(text, orgFontId, 0, false);
					break;
				}
			default:
				textHeight = MAX<int16> (textHeight, _ports->_curPort->fontHeight);
				textWidth += _font->getCharWidth(curChar);
			}
		}
	}
	// When calculating size, we do not restore font because we need the current (code modified) font active
	//  If we are drawing this is called inbetween, so font needs to get restored
	//  If we are calculating size of just one fixed string (::StringWidth), then we need to restore
	if (restoreFont) {
		SetFont(previousFontId);
		_ports->penColor(previousPenColor);
	}
	return;
}

void GfxText16::StringWidth(const char *str, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight) {
	Width(str, 0, (int16)strlen(str), orgFontId, textWidth, textHeight, true);
}

void GfxText16::ShowString(const char *str, GuiResourceId orgFontId, int16 orgPenColor) {
	Show(str, 0, (int16)strlen(str), orgFontId, orgPenColor);
}
void GfxText16::DrawString(const char *str, GuiResourceId orgFontId, int16 orgPenColor) {
	Draw(str, 0, (int16)strlen(str), orgFontId, orgPenColor);
}

int16 GfxText16::Size(Common::Rect &rect, const char *text, GuiResourceId fontId, int16 maxWidth) {
	GuiResourceId previousFontId = GetFontId();
	int16 previousPenColor = _ports->_curPort->penClr;
	int16 charCount;
	int16 maxTextWidth = 0, textWidth;
	int16 totalHeight = 0, textHeight;

	if (fontId != -1)
		SetFont(fontId);
	else
		fontId = previousFontId;

	if (g_sci->getLanguage() == Common::JA_JPN)
		SwitchToFont900OnSjis(text);

	rect.top = rect.left = 0;

	if (maxWidth < 0) { // force output as single line
		StringWidth(text, fontId, textWidth, textHeight);
		rect.bottom = textHeight;
		rect.right = textWidth;
	} else {
		// rect.right=found widest line with RTextWidth and GetLongest
		// rect.bottom=num. lines * GetPointSize
		rect.right = (maxWidth ? maxWidth : 192);
		const char *curPos = text;
		while (*curPos) {
			charCount = GetLongest(curPos, rect.right, fontId);
			if (charCount == 0)
				break;
			Width(curPos, 0, charCount, fontId, textWidth, textHeight, false);
			maxTextWidth = MAX(textWidth, maxTextWidth);
			totalHeight += textHeight;
			curPos += charCount;
			while (*curPos == ' ')
				curPos++; // skip over breaking spaces
		}
		rect.bottom = totalHeight;
		rect.right = maxWidth ? maxWidth : MIN(rect.right, maxTextWidth);
	}
	SetFont(previousFontId);
	_ports->penColor(previousPenColor);
	return rect.right;
}

// returns maximum font height used
void GfxText16::Draw(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 orgPenColor) {
	uint16 curChar, charWidth;
	Common::Rect rect;

	GetFont();
	if (!_font)
		return;

	rect.top = _ports->_curPort->curTop;
	rect.bottom = rect.top + _ports->_curPort->fontHeight;
	text += from;
	while (len--) {
		curChar = (*(const byte *)text++);
		if (_font->isDoubleByte(curChar)) {
			curChar |= (*(const byte *)text++) << 8;
			len--;
		}
		switch (curChar) {
		case 0x0A:
		case 0x0D:
		case 0:
		case 0x9781: // this one is used by SQ4/japanese as line break as well
			break;
		case 0x7C:
			if (getSciVersion() >= SCI_VERSION_1_1) {
				len -= CodeProcessing(text, orgFontId, orgPenColor, true);
				break;
			}
		default:
			charWidth = _font->getCharWidth(curChar);
			// clear char
			if (_ports->_curPort->penMode == 1) {
				rect.left = _ports->_curPort->curLeft;
				rect.right = rect.left + charWidth;
				_paint16->eraseRect(rect);
			}
			// CharStd
			_font->draw(curChar, _ports->_curPort->top + _ports->_curPort->curTop, _ports->_curPort->left + _ports->_curPort->curLeft, _ports->_curPort->penClr, _ports->_curPort->greyedOutput);
			_ports->_curPort->curLeft += charWidth;
		}
	}
}

// returns maximum font height used
void GfxText16::Show(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 orgPenColor) {
	Common::Rect rect;

	rect.top = _ports->_curPort->curTop;
	rect.bottom = rect.top + _ports->getPointSize();
	rect.left = _ports->_curPort->curLeft;
	Draw(text, from, len, orgFontId, orgPenColor);
	rect.right = _ports->_curPort->curLeft;
	_paint16->bitsShow(rect);
}

// Draws a text in rect.
void GfxText16::Box(const char *text, bool show, const Common::Rect &rect, TextAlignment alignment, GuiResourceId fontId) {
	int16 textWidth, maxTextWidth, textHeight, charCount;
	int16 offset = 0;
	int16 hline = 0;
	GuiResourceId previousFontId = GetFontId();
	int16 previousPenColor = _ports->_curPort->penClr;
	bool doubleByteMode = false;

	if (fontId != -1)
		SetFont(fontId);
	else
		fontId = previousFontId;

	if (g_sci->getLanguage() == Common::JA_JPN) {
		if (SwitchToFont900OnSjis(text))
			doubleByteMode = true;
	}

	// Reset reference code rects
	_codeRefRects.clear();
	_codeRefTempRect.left = _codeRefTempRect.top = -1;

	maxTextWidth = 0;
	while (*text) {
		charCount = GetLongest(text, rect.width(), fontId);
		if (charCount == 0)
			break;
		Width(text, 0, charCount, fontId, textWidth, textHeight, true);
		maxTextWidth = MAX<int16>(maxTextWidth, textWidth);
		switch (alignment) {
		case SCI_TEXT16_ALIGNMENT_RIGHT:
			offset = rect.width() - textWidth;
			break;
		case SCI_TEXT16_ALIGNMENT_CENTER:
			offset = (rect.width() - textWidth) / 2;
			break;
		case SCI_TEXT16_ALIGNMENT_LEFT:
			offset = 0;
			break;

		default:
			warning("Invalid alignment %d used in TextBox()", alignment);
		}
		_ports->moveTo(rect.left + offset, rect.top + hline);

		if (show) {
			Show(text, 0, charCount, fontId, previousPenColor);
		} else {
			Draw(text, 0, charCount, fontId, previousPenColor);
		}

		hline += textHeight;
		text += charCount;
		while (*text == ' ')
			text++; // skip over breaking spaces
	}
	SetFont(previousFontId);
	_ports->penColor(previousPenColor);

	if (doubleByteMode) {
		// Kanji is written by pc98 rom to screen directly. Because of
		// GetLongest() behaviour (not cutting off the last char, that causes a
		// new line), results in the script thinking that the text would need
		// less space. The coordinate adjustment in fontsjis.cpp handles the
		// incorrect centering because of that and this code actually shows all
		// of the chars - if we don't do this, the scripts will only show most
		// of the chars, but the last few pixels won't get shown most of the
		// time.
		Common::Rect kanjiRect = rect;
		_ports->offsetRect(kanjiRect);
		kanjiRect.left &= 0xFFC;
		kanjiRect.right = kanjiRect.left + maxTextWidth;
		kanjiRect.bottom = kanjiRect.top + hline;
		kanjiRect.left *= 2; kanjiRect.right *= 2;
		kanjiRect.top *= 2; kanjiRect.bottom *= 2;
		_screen->copyDisplayRectToScreen(kanjiRect);
	}
}

void GfxText16::DrawString(const char *text) {
	GuiResourceId previousFontId = GetFontId();
	int16 previousPenColor = _ports->_curPort->penClr;

	Draw(text, 0, strlen(text), previousFontId, previousPenColor);
	SetFont(previousFontId);
	_ports->penColor(previousPenColor);
}

// we need to have a separate status drawing code
//  In KQ4 the IV char is actually 0xA, which would otherwise get considered as linebreak and not printed
void GfxText16::DrawStatus(const char *text) {
	uint16 curChar, charWidth;
	uint16 textLen = strlen(text);
	Common::Rect rect;

	GetFont();
	if (!_font)
		return;

	rect.top = _ports->_curPort->curTop;
	rect.bottom = rect.top + _ports->_curPort->fontHeight;
	while (textLen--) {
		curChar = (*(const byte *)text++);
		switch (curChar) {
		case 0:
			break;
		default:
			charWidth = _font->getCharWidth(curChar);
			_font->draw(curChar, _ports->_curPort->top + _ports->_curPort->curTop, _ports->_curPort->left + _ports->_curPort->curLeft, _ports->_curPort->penClr, _ports->_curPort->greyedOutput);
			_ports->_curPort->curLeft += charWidth;
		}
	}
}

// Sierra did this in their PC98 interpreter only, they identify a text as being
// sjis and then switch to font 900
bool GfxText16::SwitchToFont900OnSjis(const char *text) {
	byte firstChar = (*(const byte *)text++);
	if (((firstChar >= 0x81) && (firstChar <= 0x9F)) || ((firstChar >= 0xE0) && (firstChar <= 0xEF))) {
		SetFont(900);
		return true;
	}
	return false;
}

reg_t GfxText16::allocAndFillReferenceRectArray() {
	uint rectCount = _codeRefRects.size();
	if (rectCount) {
		reg_t rectArray;
		byte *rectArrayPtr = g_sci->getEngineState()->_segMan->allocDynmem(4 * 2 * (rectCount + 1), "text code reference rects", &rectArray);
		GfxCoordAdjuster *coordAdjuster = g_sci->_gfxCoordAdjuster;
		for (uint curRect = 0; curRect < rectCount; curRect++) {
			coordAdjuster->kernelLocalToGlobal(_codeRefRects[curRect].left, _codeRefRects[curRect].top);
			coordAdjuster->kernelLocalToGlobal(_codeRefRects[curRect].right, _codeRefRects[curRect].bottom);
			WRITE_LE_UINT16(rectArrayPtr + 0, _codeRefRects[curRect].left);
			WRITE_LE_UINT16(rectArrayPtr + 2, _codeRefRects[curRect].top);
			WRITE_LE_UINT16(rectArrayPtr + 4, _codeRefRects[curRect].right);
			WRITE_LE_UINT16(rectArrayPtr + 6, _codeRefRects[curRect].bottom);
			rectArrayPtr += 8;
		}
		WRITE_LE_UINT16(rectArrayPtr + 0, 0x7777);
		WRITE_LE_UINT16(rectArrayPtr + 2, 0x7777);
		WRITE_LE_UINT16(rectArrayPtr + 4, 0x7777);
		WRITE_LE_UINT16(rectArrayPtr + 6, 0x7777);
		return rectArray;
	}
	return NULL_REG;
}

void GfxText16::kernelTextSize(const char *text, int16 font, int16 maxWidth, int16 *textWidth, int16 *textHeight) {
	Common::Rect rect(0, 0, 0, 0);
	Size(rect, text, font, maxWidth);
	*textWidth = rect.width();
	*textHeight = rect.height();
}

// Used SCI1+ for text codes
void GfxText16::kernelTextFonts(int argc, reg_t *argv) {
	int i;

	delete _codeFonts;
	_codeFontsCount = argc;
	_codeFonts = new GuiResourceId[argc];
	for (i = 0; i < argc; i++) {
		_codeFonts[i] = (GuiResourceId)argv[i].toUint16();
	}
}

// Used SCI1+ for text codes
void GfxText16::kernelTextColors(int argc, reg_t *argv) {
	int i;

	delete _codeColors;
	_codeColorsCount = argc;
	_codeColors = new uint16[argc];
	for (i = 0; i < argc; i++) {
		_codeColors[i] = argv[i].toUint16();
	}
}

} // End of namespace Sci