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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/file.h"
#include "image/bmp.h"
#include "mm/shared/utils/xeen_font.h"
namespace MM {
#define FONT_HEIGHT 8
#define CHARS_COUNT 128
byte XeenFont::_colors[4];
byte XeenFont::_colorsSet[40][4];
void XeenFont::load(Common::SeekableReadStream *src,
size_t charsOffset, size_t charWidthsOffset) {
// Read in character data
src->seek(charsOffset);
_data.resize(CHARS_COUNT * FONT_HEIGHT);
for (int i = 0; i < CHARS_COUNT * FONT_HEIGHT; ++i)
_data[i] = src->readUint16LE();
// Read in the char widths
src->seek(charWidthsOffset);
_widths.resize(128);
src->read(&_widths[0], 128);
}
void XeenFont::loadColors(Common::SeekableReadStream *src) {
src->read(_colorsSet, 40 * 4);
}
void XeenFont::setColors(uint index) {
assert(index < 40);
Common::copy(&_colorsSet[index][0],
&_colorsSet[index][4], &_colors[0]);
}
int XeenFont::getCharWidth(uint32 chr) const {
assert(chr < 256);
return _widths[chr & 0x7f];
}
void XeenFont::drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const {
assert(chr < 256);
if (chr == 'g' || chr == 'p' || chr == 'q' || chr == 'y')
++y;
bool isInverse = (chr >= 128);
chr &= 0x7f;
const uint16 *src = &_data[chr * FONT_HEIGHT];
for (int yCtr = 0; yCtr < FONT_HEIGHT; ++yCtr, ++src) {
if ((y + yCtr) < 0 || (y + yCtr) > dst->h)
continue;
uint16 srcVal = *src;
byte *dest = (byte *)dst->getBasePtr(x, y + yCtr);
for (int xCtr = 0; xCtr < _widths[chr];
++xCtr, ++dest, srcVal >>= 2) {
if ((x + xCtr) >= 0 && (x + xCtr) < dst->w) {
if (isInverse)
*dest = (srcVal & 3) ? 2 : 0;
else if (srcVal & 3)
*dest = _colors[srcVal & 3];
}
}
}
}
int XeenFont::getStringWidth(const Common::String &str) const {
// Handle not counting character highlighting sequences
// as part of the string width
static const char *const CONTROL_CHARS = "\x01\x02";
size_t p = str.findFirstOf(CONTROL_CHARS);
if (p == Common::String::npos)
return Graphics::Font::getStringWidth(str);
size_t totalWidth = 0;
Common::String strCopy = str;
do {
totalWidth += Graphics::Font::getStringWidth(
Common::String(strCopy.c_str(), strCopy.c_str() + p));
strCopy = Common::String(strCopy.c_str() + p + 3);
p = strCopy.findFirstOf(CONTROL_CHARS);
} while (p != Common::String::npos);
totalWidth += Graphics::Font::getStringWidth(strCopy);
return totalWidth;
}
} // namespace MM
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