mirror of
https://github.com/libretro/scummvm.git
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141 lines
4.1 KiB
C++
141 lines
4.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "illusions/illusions.h"
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#include "illusions/resources/fontresource.h"
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#include "illusions/dictionary.h"
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namespace Illusions {
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// FontResourceLoader
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void FontResourceLoader::load(Resource *resource) {
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FontInstance *fontInstance = new FontInstance(_vm);
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fontInstance->load(resource);
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resource->_instance = fontInstance;
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}
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bool FontResourceLoader::isFlag(int flag) {
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return
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flag == kRlfLoadFile;
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}
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// CharInfo
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void CharInfo::load(byte *dataStart, Common::SeekableReadStream &stream) {
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_width = stream.readUint16LE();
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_field_2 = stream.readUint16LE();
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uint32 pixelsOffs = stream.readUint32LE();
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_pixels = dataStart + pixelsOffs;
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debug(2, "CharInfo::load() _width: %d; _field_2: %d; pixelsOffs: %08X",
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_width, _field_2, pixelsOffs);
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}
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// CharRange
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void CharRange::load(byte *dataStart, Common::SeekableReadStream &stream) {
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_firstChar = stream.readUint16LE();
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_lastChar = stream.readUint16LE();
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uint count = _lastChar - _firstChar + 1;
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uint32 charInfosOffs = stream.readUint32LE();
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_charInfos = new CharInfo[count];
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for (uint i = 0; i < count; ++i) {
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stream.seek(charInfosOffs + i * 8);
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_charInfos[i].load(dataStart, stream);
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}
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debug(2, "CharRange::load() _firstChar: %d; _lastChar: %d; charInfosOffs: %08X",
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_firstChar, _lastChar, charInfosOffs);
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}
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CharInfo *CharRange::getCharInfo(uint16 c) {
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return &_charInfos[c - _firstChar];
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}
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bool CharRange::containsChar(uint16 c) {
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return c >= _firstChar && c <= _lastChar;
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}
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// FontResource
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FontResource::FontResource() {
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}
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FontResource::~FontResource() {
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}
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void FontResource::load(Resource *resource) {
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byte *data = resource->_data;
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uint32 dataSize = resource->_dataSize;
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Common::MemoryReadStream stream(data, dataSize, DisposeAfterUse::NO);
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_totalSize = stream.readUint32LE();
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_charHeight = stream.readUint16LE();
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_defaultChar = stream.readUint16LE();
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_colorIndex = stream.readUint16LE();
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_lineIncr = stream.readUint16LE();
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_widthC = stream.readUint16LE();
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_charRangesCount = stream.readUint16LE();
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uint32 charRangesOffs = stream.pos();
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_charRanges = new CharRange[_charRangesCount];
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for (uint i = 0; i < _charRangesCount; ++i) {
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stream.seek(charRangesOffs + i * 8);
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_charRanges[i].load(data, stream);
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}
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debug(2, "FontResource::load() _charHeight: %d; _defaultChar: %d; _colorIndex: %d; _lineIncr: %d; _widthC: %d; _charRangesCount: %d",
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_charHeight, _defaultChar, _colorIndex, _lineIncr, _widthC, _charRangesCount);
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}
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CharInfo *FontResource::getCharInfo(uint16 c) {
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for (uint i = 0; i < _charRangesCount; ++i) {
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if (_charRanges[i].containsChar(c))
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return _charRanges[i].getCharInfo(c);
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}
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return 0;
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}
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const Common::Rect FontResource::calculateRectForText(uint16 *text, uint textLength) {
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int16 width = 0;
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for (uint i = 0; i < textLength && *text; i++) {
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width += getCharInfo(*text)->_width;
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text++;
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}
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return Common::Rect(width, getCharHeight() + getLineIncr());
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}
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// FontInstance
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FontInstance::FontInstance(IllusionsEngine *vm) : _vm(vm) {
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}
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void FontInstance::load(Resource *resource) {
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_fontResource = new FontResource();
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_fontResource->load(resource);
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_resId = resource->_resId;
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_vm->_dict->addFont(resource->_resId, _fontResource);
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}
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void FontInstance::unload() {
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delete _fontResource;
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_vm->_dict->removeFont(_resId);
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}
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} // End of namespace Illusions
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