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Diffstat (limited to 'engines/zvision/text/truetype_font.cpp')
-rw-r--r-- | engines/zvision/text/truetype_font.cpp | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/engines/zvision/text/truetype_font.cpp b/engines/zvision/text/truetype_font.cpp new file mode 100644 index 0000000000..acb053ea8d --- /dev/null +++ b/engines/zvision/text/truetype_font.cpp @@ -0,0 +1,265 @@ +/* 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 "common/config-manager.h" +#include "common/debug.h" +#include "common/file.h" +#include "common/system.h" +#include "common/unzip.h" +#include "common/ustr.h" +#include "graphics/font.h" +#include "graphics/fonts/ttf.h" +#include "graphics/surface.h" + +#include "zvision/zvision.h" +#include "zvision/graphics/render_manager.h" +#include "zvision/text/truetype_font.h" + +namespace ZVision { + +const FontStyle systemFonts[] = { + { "*times new roman*", "times", "FreeSerif", "Italic", "LiberationSerif" }, + { "*times*", "times", "FreeSerif", "Italic", "LiberationSerif" }, + { "*century schoolbook*", "censcbk", "FreeSerif", "Italic", "LiberationSerif" }, + { "*garamond*", "gara", "FreeSerif", "Italic", "LiberationSerif" }, + { "*courier new*", "cour", "FreeMono", "Oblique", "LiberationMono" }, + { "*courier*", "cour", "FreeMono", "Oblique", "LiberationMono" }, + { "*ZorkDeath*", "cour", "FreeMono", "Oblique", "LiberationMono" }, + { "*arial*", "arial", "FreeSans", "Oblique", "LiberationSans" }, + { "*ZorkNormal*", "arial", "FreeSans", "Oblique", "LiberationSans" } +}; + +const FontStyle getSystemFont(int fontIndex) { + return systemFonts[fontIndex]; +} + +StyledTTFont::StyledTTFont(ZVision *engine) { + _engine = engine; + _style = 0; + _font = nullptr; + _lineHeight = 0; +} + +StyledTTFont::~StyledTTFont() { + delete _font; +} + +bool StyledTTFont::loadFont(const Common::String &fontName, int32 point, uint style) { + // Don't re-load the font if we've already loaded it + // We have to check for empty so we can default to Arial + if (!fontName.empty() && _fontName.equalsIgnoreCase(fontName) && _lineHeight == point && _style == style) { + return true; + } + + _style = style; + + Common::String newFontName; + Common::String freeFontName; + Common::String liberationFontName; + + for (int i = 0; i < FONT_COUNT; i++) { + FontStyle curFont = getSystemFont(i); + if (fontName.matchString(curFont.zorkFont, true)) { + newFontName = curFont.fontBase; + freeFontName = curFont.freeFontBase; + liberationFontName = curFont.liberationFontBase; + + if ((_style & TTF_STYLE_BOLD) && (_style & TTF_STYLE_ITALIC)) { + newFontName += "bi"; + freeFontName += "Bold"; + freeFontName += curFont.freeFontItalicName; + liberationFontName += "-BoldItalic"; + } else if (_style & TTF_STYLE_BOLD) { + newFontName += "bd"; + freeFontName += "Bold"; + liberationFontName += "-Bold"; + } else if (_style & TTF_STYLE_ITALIC) { + newFontName += "i"; + freeFontName += curFont.freeFontItalicName; + liberationFontName += "-Italic"; + } else { + liberationFontName += "-Regular"; + } + + newFontName += ".ttf"; + freeFontName += ".ttf"; + liberationFontName += ".ttf"; + break; + } + } + + if (newFontName.empty()) { + debug("Could not identify font: %s. Reverting to Arial", fontName.c_str()); + newFontName = "arial.ttf"; + freeFontName = "FreeSans.ttf"; + liberationFontName = "LiberationSans-Regular.ttf"; + } + + bool sharp = (_style & TTF_STYLE_SHARP) == TTF_STYLE_SHARP; + + Common::File file; + if (!file.open(newFontName) && !_engine->getSearchManager()->openFile(file, newFontName) && + !file.open(liberationFontName) && !_engine->getSearchManager()->openFile(file, liberationFontName) && + !file.open(freeFontName) && !_engine->getSearchManager()->openFile(file, freeFontName)) + error("Unable to open font file %s (Liberation Font alternative: %s, FreeFont alternative: %s)", newFontName.c_str(), liberationFontName.c_str(), freeFontName.c_str()); + + Graphics::Font *newFont = Graphics::loadTTFFont(file, point, 60, (sharp ? Graphics::kTTFRenderModeMonochrome : Graphics::kTTFRenderModeNormal)); // 66 dpi for 640 x 480 on 14" display + if (newFont == nullptr) { + return false; + } + + delete _font; + _font = newFont; + + _fontName = fontName; + _lineHeight = point; + + return true; +} + +int StyledTTFont::getFontHeight() { + if (_font) + return _font->getFontHeight(); + + return 0; +} + +int StyledTTFont::getMaxCharWidth() { + if (_font) + return _font->getMaxCharWidth(); + + return 0; +} + +int StyledTTFont::getCharWidth(byte chr) { + if (_font) + return _font->getCharWidth(chr); + + return 0; +} + +int StyledTTFont::getKerningOffset(byte left, byte right) { + if (_font) + return _font->getKerningOffset(left, right); + + return 0; +} + +Common::U32String StyledTTFont::convertUtf8ToUtf32(const Common::String &str) { + // The String class, and therefore the Font class as well, assume one + // character is one byte, but in this case it's actually an UTF-8 + // string with up to 4 bytes per character. To work around this, + // convert it to an U32String before drawing it, because our Font class + // can handle that. + Common::U32String u32str; + uint i = 0; + while (i < str.size()) { + uint32 chr = 0; + if ((str[i] & 0xF8) == 0xF0) { + chr |= (str[i++] & 0x07) << 18; + chr |= (str[i++] & 0x3F) << 12; + chr |= (str[i++] & 0x3F) << 6; + chr |= (str[i++] & 0x3F); + } else if ((str[i] & 0xF0) == 0xE0) { + chr |= (str[i++] & 0x0F) << 12; + chr |= (str[i++] & 0x3F) << 6; + chr |= (str[i++] & 0x3F); + } else if ((str[i] & 0xE0) == 0xC0) { + chr |= (str[i++] & 0x1F) << 6; + chr |= (str[i++] & 0x3F); + } else { + chr = (str[i++] & 0x7F); + } + u32str += chr; + } + return u32str; +} + +void StyledTTFont::drawChar(Graphics::Surface *dst, byte chr, int x, int y, uint32 color) { + if (_font) { + _font->drawChar(dst, chr, x, y, color); + if (_style & TTF_STYLE_UNDERLINE) { + int16 pos = (int16)floor(_font->getFontHeight() * 0.87); + int thk = MAX((int)(_font->getFontHeight() * 0.05), 1); + dst->fillRect(Common::Rect(x, y + pos, x + _font->getCharWidth(chr), y + pos + thk), color); + } + if (_style & TTF_STYLE_STRIKETHROUGH) { + int16 pos = (int16)floor(_font->getFontHeight() * 0.60); + int thk = MAX((int)(_font->getFontHeight() * 0.05), 1); + dst->fillRect(Common::Rect(x, y + pos, x + _font->getCharWidth(chr), y + pos + thk), color); + } + } +} + +void StyledTTFont::drawString(Graphics::Surface *dst, const Common::String &str, int x, int y, int w, uint32 color, Graphics::TextAlign align) { + if (_font) { + Common::U32String u32str = convertUtf8ToUtf32(str); + _font->drawString(dst, u32str, x, y, w, color, align); + if (_style & TTF_STYLE_UNDERLINE) { + int16 pos = (int16)floor(_font->getFontHeight() * 0.87); + int16 wd = MIN(_font->getStringWidth(u32str), w); + int16 stX = x; + if (align == Graphics::kTextAlignCenter) + stX += (w - wd) / 2; + else if (align == Graphics::kTextAlignRight) + stX += (w - wd); + + int thk = MAX((int)(_font->getFontHeight() * 0.05), 1); + + dst->fillRect(Common::Rect(stX, y + pos, stX + wd, y + pos + thk), color); + } + if (_style & TTF_STYLE_STRIKETHROUGH) { + int16 pos = (int16)floor(_font->getFontHeight() * 0.60); + int16 wd = MIN(_font->getStringWidth(u32str), w); + int16 stX = x; + if (align == Graphics::kTextAlignCenter) + stX += (w - wd) / 2; + else if (align == Graphics::kTextAlignRight) + stX += (w - wd); + + int thk = MAX((int)(_font->getFontHeight() * 0.05), 1); + + dst->fillRect(Common::Rect(stX, y + pos, stX + wd, y + pos + thk), color); + } + } +} + +int StyledTTFont::getStringWidth(const Common::String &str) { + if (_font) + return _font->getStringWidth(str); + return 0; +} + +Graphics::Surface *StyledTTFont::renderSolidText(const Common::String &str, uint32 color) { + Graphics::Surface *tmp = new Graphics::Surface; + if (_font) { + int16 w = _font->getStringWidth(str); + if (w && w < 1024) { + tmp->create(w, _font->getFontHeight(), _engine->_resourcePixelFormat); + drawString(tmp, str, 0, 0, w, color); + } + } + return tmp; +} + +} // End of namespace ZVision |