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Diffstat (limited to 'engines/sherlock/fonts.cpp')
| -rw-r--r-- | engines/sherlock/fonts.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/engines/sherlock/fonts.cpp b/engines/sherlock/fonts.cpp new file mode 100644 index 0000000000..440e31915c --- /dev/null +++ b/engines/sherlock/fonts.cpp @@ -0,0 +1,204 @@ +/* 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/system.h" +#include "common/platform.h" +#include "sherlock/fonts.h" +#include "sherlock/image_file.h" +#include "sherlock/surface.h" +#include "sherlock/sherlock.h" + +namespace Sherlock { + +SherlockEngine *Fonts::_vm; +ImageFile *Fonts::_font; +int Fonts::_fontNumber; +int Fonts::_fontHeight; +int Fonts::_widestChar; +uint16 Fonts::_charCount; +byte Fonts::_yOffsets[255]; + +void Fonts::setVm(SherlockEngine *vm) { + _vm = vm; + _font = nullptr; + _charCount = 0; +} + +void Fonts::free() { + delete _font; +} + +void Fonts::setFont(int fontNum) { + _fontNumber = fontNum; + + // Discard previous font + delete _font; + + Common::String fontFilename; + + if (_vm->getPlatform() != Common::kPlatform3DO) { + // PC + // use FONT[number].VGS, which is a regular sherlock graphic file + fontFilename = Common::String::format("FONT%d.VGS", fontNum + 1); + + // load font data + _font = new ImageFile(fontFilename); + } else { + // 3DO + switch (fontNum) { + case 0: + case 1: + fontFilename = "helvetica14.font"; + break; + case 2: + fontFilename = "darts.font"; + break; + default: + error("setFont(): unsupported 3DO font number"); + } + + // load font data + _font = new ImageFile3DO(fontFilename, kImageFile3DOType_Font); + } + + _charCount = _font->size(); + + // Iterate through the frames to find the widest and tallest font characters + _fontHeight = _widestChar = 0; + for (uint idx = 0; idx < _charCount; ++idx) { + _fontHeight = MAX((uint16)_fontHeight, (*_font)[idx]._frame.h); + _widestChar = MAX((uint16)_widestChar, (*_font)[idx]._frame.w); + } + + // Initialize the Y offset table for the extended character set + for (int idx = 0; idx < 255; ++idx) { + _yOffsets[idx] = 0; + + if (IS_ROSE_TATTOO) { + if ((idx >= 129 && idx < 135) || (idx >= 136 && idx < 143) || (idx >= 147 && idx < 155) || + (idx >= 156 && idx < 165)) + _yOffsets[idx] = 1; + else if ((idx >= 143 && idx < 146) || idx == 165) + _yOffsets[idx] = 2; + } + } +} + +inline byte Fonts::translateChar(byte c) { + switch (c) { + case ' ': + return 0; // translate to first actual character + case 225: + // This was done in the German interpreter + // happens when talking to the kid in the 2nd room + return 135; // special handling for 0xE1 + default: + if (c >= 0x80) { // German SH1 version did this + c--; + } + // Spanish SH1 did this (reverse engineered code) + //if ((c >= 0xA0) && (c <= 0xAD) || (c == 0x82)) { + // c--; + //} + assert(c > 32); // anything above space is allowed + return c - 33; + } +} + +void Fonts::writeString(Surface *surface, const Common::String &str, + const Common::Point &pt, int overrideColor) { + Common::Point charPos = pt; + + if (!_font) + return; + + for (const char *curCharPtr = str.c_str(); *curCharPtr; ++curCharPtr) { + byte curChar = *curCharPtr; + + if (curChar == ' ') { + charPos.x += 5; // hardcoded space + continue; + } + curChar = translateChar(curChar); + + assert(curChar < _charCount); + ImageFrame &frame = (*_font)[curChar]; + surface->transBlitFrom(frame, Common::Point(charPos.x, charPos.y + _yOffsets[curChar]), false, overrideColor); + charPos.x += frame._frame.w + 1; + } +} + +int Fonts::stringWidth(const Common::String &str) { + int width = 0; + + if (!_font) + return 0; + + for (const char *c = str.c_str(); *c; ++c) + width += charWidth(*c); + + return width; +} + +int Fonts::stringHeight(const Common::String &str) { + int height = 0; + + if (!_font) + return 0; + + for (const char *c = str.c_str(); *c; ++c) + height = MAX(height, charHeight(*c)); + + return height; +} + +int Fonts::charWidth(unsigned char c) { + byte curChar; + + if (!_font) + return 0; + + if (c == ' ') { + return 5; // hardcoded space + } + curChar = translateChar(c); + + if (curChar < _charCount) + return (*_font)[curChar]._frame.w + 1; + return 0; +} + +int Fonts::charHeight(unsigned char c) { + byte curChar; + + if (!_font) + return 0; + + // Space is supposed to be handled like the first actual character (which is decimal 33) + curChar = translateChar(c); + + assert(curChar < _charCount); + const ImageFrame &img = (*_font)[curChar]; + return img._height + img._offset.y + 1; +} + +} // End of namespace Sherlock |