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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 "common/scummsys.h"
#include "mads/mads.h"
#include "mads/compression.h"
#include "mads/font.h"
#include "mads/msurface.h"
namespace MADS {
MADSEngine *Font::_vm;
Common::HashMap<Common::String, Font *> *Font::_fonts;
uint8 Font::_fontColors[4];
void Font::init(MADSEngine *vm) {
_vm = vm;
_fontColors[0] = 0xFF;
_fontColors[1] = 0xF;
_fontColors[2] = 7;
_fontColors[3] = 8;
_fonts = new Common::HashMap<Common::String, Font *>();
}
void Font::deinit() {
Common::HashMap<Common::String, Font *>::iterator i;
for (i = _fonts->begin(); i != _fonts->end(); ++i)
delete (*i)._value;
delete _fonts;
}
Font *Font::getFont(const Common::String &fontName) {
if (_fonts->contains(fontName)) {
return _fonts->getVal(fontName);
} else {
Font *font = new Font(fontName);
_fonts->setVal(fontName, font);
return font;
}
}
Font::Font() {
setFont(FONT_INTERFACE);
}
Font::Font(const Common::String &filename) {
setFont(filename);
}
Font::~Font() {
delete[] _charWidths;
delete[] _charOffs;
delete[] _charData;
}
void Font::setFont(const Common::String &filename) {
if (!_filename.empty() && (filename == _filename))
// Already using specified font, so don't bother reloading
return;
_filename = filename;
MadsPack fontData(filename, _vm);
Common::SeekableReadStream *fontFile = fontData.getItemStream(0);
_maxHeight = fontFile->readByte();
_maxWidth = fontFile->readByte();
_charWidths = new uint8[128];
// Char data is shifted by 1
_charWidths[0] = 0;
fontFile->read(_charWidths + 1, 127);
fontFile->readByte(); // remainder
_charOffs = new uint16[128];
uint startOffs = 2 + 128 + 256;
uint fontSize = fontFile->size() - startOffs;
// Char data is shifted by 1
_charOffs[0] = 0;
for (int i = 1; i < 128; i++)
_charOffs[i] = fontFile->readUint16LE() - startOffs;
fontFile->readUint16LE(); // remainder
_charData = new uint8[fontSize];
fontFile->read(_charData, fontSize);
delete fontFile;
}
void Font::setColors(uint8 v1, uint8 v2, uint8 v3, uint8 v4) {
_fontColors[0] = v1;
_fontColors[1] = v2;
_fontColors[2] = v3;
_fontColors[3] = v4;
}
void Font::setColorMode(SelectionMode mode) {
switch (mode) {
case SELMODE_UNSELECTED:
setColors(0xFF, 4, 4, 0);
break;
case SELMODE_HIGHLIGHTED:
setColors(0xFF, 5, 5, 0);
break;
case SELMODE_SELECTED:
setColors(0xFF, 6, 6, 0);
break;
default:
break;
}
}
int Font::writeString(MSurface *surface, const Common::String &msg, const Common::Point &pt,
int spaceWidth, int width) {
int xEnd;
if (width > 0)
xEnd = MIN((int)surface->w, pt.x + width);
else
xEnd = surface->w;
int x = pt.x;
int y = pt.y;
int skipY = 0;
if (y < 0) {
skipY = -y;
y = 0;
}
int height = MAX(0, _maxHeight - skipY);
if (height == 0)
return x;
int bottom = y + height - 1;
if (bottom > surface->getHeight() - 1) {
height -= MIN(height, bottom - (surface->getHeight() - 1));
}
if (height <= 0)
return x;
byte *destPtr = surface->getBasePtr(x, y);
uint8 *oldDestPtr = destPtr;
int xPos = x;
const char *text = msg.c_str();
while (*text) {
char theChar = (*text++) & 0x7F;
int charWidth = _charWidths[(byte)theChar];
if (charWidth > 0) {
if (xPos + charWidth > xEnd)
return xPos;
uint8 *charData = &_charData[_charOffs[(byte)theChar]];
int bpp = getBpp(charWidth);
if (skipY != 0)
charData += bpp * skipY;
for (int i = 0; i < height; i++) {
for (int j = 0; j < bpp; j++) {
if (*charData & 0xc0)
*destPtr = _fontColors[(*charData & 0xc0) >> 6];
destPtr++;
if (*charData & 0x30)
*destPtr = _fontColors[(*charData & 0x30) >> 4];
destPtr++;
if (*charData & 0x0C)
*destPtr = _fontColors[(*charData & 0x0C) >> 2];
destPtr++;
if (*charData & 0x03)
*destPtr = _fontColors[*charData & 0x03];
destPtr++;
charData++;
}
destPtr += surface->getWidth() - bpp * 4;
}
destPtr = oldDestPtr + charWidth + spaceWidth;
oldDestPtr = destPtr;
}
xPos += charWidth + spaceWidth;
}
return xPos;
}
int Font::getWidth(const Common::String &msg, int spaceWidth) {
int width = 0;
const char *text = msg.c_str();
if (msg.size() > 0) {
while (*text)
width += _charWidths[*text++ & 0x7F] + spaceWidth;
width -= spaceWidth;
}
return width;
}
int Font::getBpp(int charWidth) {
if (charWidth > 12)
return 4;
else if (charWidth > 8)
return 3;
else if (charWidth > 4)
return 2;
else
return 1;
}
} // End of namespace MADS
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