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/* 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 "dreamweb/dreamweb.h"
#include "engines/util.h"
#include "graphics/surface.h"
namespace DreamGen {
void DreamGenContext::printboth(const Frame *charSet, uint16 *x, uint16 y, uint8 c, uint8 nextChar) {
uint16 newX = *x;
uint8 width, height;
printchar(charSet, &newX, y, c, nextChar, &width, &height);
multidump(*x, y, width, height);
*x = newX;
}
uint8 DreamGenContext::getnextword(const Frame *charSet, const uint8 *string, uint8 *totalWidth, uint8 *charCount) {
*totalWidth = 0;
*charCount = 0;
while(true) {
uint8 firstChar = *string;
++string;
++*charCount;
if ((firstChar == ':') || (firstChar == 0)) { //endall
*totalWidth += 6;
return 1;
}
if (firstChar == 32) { //endword
*totalWidth += 6;
return 0;
}
firstChar = engine->modifyChar(firstChar);
if (firstChar != 255) {
uint8 secondChar = *string;
uint8 width = charSet[firstChar - 32 + data.word(kCharshift)].width;
width = kernchars(firstChar, secondChar, width);
*totalWidth += width;
}
}
}
void DreamGenContext::printchar() {
uint16 x = di;
uint8 width, height;
printchar((const Frame *)ds.ptr(0, 0), &x, bx, al, ah, &width, &height);
di = x;
cl = width;
ch = height;
}
void DreamGenContext::printchar(const Frame *charSet, uint16* x, uint16 y, uint8 c, uint8 nextChar, uint8 *width, uint8 *height) {
if (c == 255)
return;
push(si);
push(di);
if (data.byte(kForeignrelease) != 0)
y -= 3;
uint16 tmp = c - 32 + data.word(kCharshift);
showframe(charSet, *x, y, tmp & 0x1ff, (tmp >> 8) & 0xfe, width, height);
di = pop();
si = pop();
_cmp(data.byte(kKerning), 0);
if (flags.z())
*width = kernchars(c, nextChar, *width);
(*x) += *width;
}
void DreamGenContext::printslow() {
al = printslow(es.ptr(si, 0), di, bx, dl, (bool)(dl & 1));
}
uint8 DreamGenContext::printslow(const uint8 *string, uint16 x, uint16 y, uint8 maxWidth, bool centered) {
data.byte(kPointerframe) = 1;
data.byte(kPointermode) = 3;
const Frame* charSet = (const Frame *)segRef(data.word(kCharset1)).ptr(0, 0);
do {
uint16 offset = x;
uint16 charCount = getnumber(charSet, string, maxWidth, centered, &offset);
do {
uint8 c0 = string[0];
uint8 c1 = string[1];
uint8 c2 = string[2];
c0 = engine->modifyChar(c0);
printboth(charSet, &offset, y, c0, c1);
if ((c1 == 0) || (c1 == ':')) {
return 0;
}
if (charCount != 1) {
c1 = engine->modifyChar(c1);
data.word(kCharshift) = 91;
uint16 offset2 = offset;
printboth(charSet, &offset2, y, c1, c2);
data.word(kCharshift) = 0;
for (int i=0; i<2; ++i) {
waitframes();
if (ax == 0)
continue;
if (ax != data.word(kOldbutton)) {
return 1;
}
}
}
++string;
--charCount;
} while (charCount);
y += 10;
} while (true);
}
void DreamGenContext::printdirect() {
uint16 y = bx;
uint16 initialSi = si;
const uint8 *initialString = es.ptr(si, 0);
const uint8 *string = initialString;
printdirect(&string, di, &y, dl, (bool)(dl & 1));
si = initialSi + (string - initialString);
bx = y;
}
void DreamGenContext::printdirect(const uint8** string, uint16 x, uint16 *y, uint8 maxWidth, bool centered) {
data.word(kLastxpos) = x;
const Frame *charSet = (const Frame *)segRef(data.word(kCurrentset)).ptr(0, 0);
while (true) {
uint16 offset = x;
uint8 charCount = getnumber(charSet, *string, maxWidth, centered, &offset);
uint16 i = offset;
do {
uint8 c = (*string)[0];
uint8 nextChar = (*string)[1];
++(*string);
if ((c == 0) || (c == ':')) {
return;
}
c = engine->modifyChar(c);
uint8 width, height;
printchar(charSet, &i, *y, c, nextChar, &width, &height);
data.word(kLastxpos) = i;
--charCount;
} while(charCount);
*y += data.word(kLinespacing);
}
}
void DreamGenContext::getnumber() {
uint16 offset = di;
cl = getnumber((Frame *)ds.ptr(0, 0), es.ptr(si, 0), dl, (bool)(dl & 1), &offset);
di = offset;
}
uint8 DreamGenContext::getnumber(const Frame *charSet, const uint8 *string, uint16 maxWidth, bool centered, uint16* offset) {
uint8 totalWidth = 0;
uint8 charCount = 0;
while (true) {
uint8 wordTotalWidth, wordCharCount;
uint8 done = getnextword(charSet, string, &wordTotalWidth, &wordCharCount);
string += wordCharCount;
if (done == 1) { //endoftext
ax = totalWidth + wordTotalWidth - 10;
if (ax < maxWidth) {
totalWidth += wordTotalWidth;
charCount += wordCharCount;
}
if (centered) {
ax = (maxWidth & 0xfe) + 2 + 20 - totalWidth;
ax /= 2;
} else {
ax = 0;
}
*offset += ax;
return charCount;
}
ax = totalWidth + wordTotalWidth - 10;
if (ax >= maxWidth) { //gotoverend
if (centered) {
ax = (maxWidth & 0xfe) - totalWidth + 20;
ax /= 2;
} else {
ax = 0;
}
*offset += ax;
return charCount;
}
totalWidth += wordTotalWidth;
charCount += wordCharCount;
}
}
uint8 DreamGenContext::kernchars(uint8 firstChar, uint8 secondChar, uint8 width) {
if ((firstChar == 'a') || (al == 'u')) {
if ((secondChar == 'n') || (secondChar == 't') || (secondChar == 'r') || (secondChar == 'i') || (secondChar == 'l'))
return width-1;
}
return width;
}
void DreamGenContext::kernchars() {
cl = kernchars(al, ah, cl);
}
} /*namespace dreamgen */
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