1635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project/* 2635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. 3635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 4635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * Redistribution and use in source and binary forms, with or without 5635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * modification, are permitted provided that the following conditions are 6635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * met: 7635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 8635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions of source code must retain the above copyright 9635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * notice, this list of conditions and the following disclaimer. 10635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Redistributions in binary form must reproduce the above 11635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * copyright notice, this list of conditions and the following disclaimer 12635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * in the documentation and/or other materials provided with the 13635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * distribution. 14635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * * Neither the name of Google Inc. nor the names of its 15635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * contributors may be used to endorse or promote products derived from 16635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * this software without specific prior written permission. 17635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * 18635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project */ 30635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 31635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// A collection of utilities for font handling. 32635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 33635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// FIXME: Move all methods to the files that have their callsites and remove this file. 34635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// *Utils files are not very WebKit-ty. 35635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 3606ea8e899e48f1f2f396b70e63fae369f2f23232Kristian Monsen#ifndef FontUtilsChromiumWin_h 3706ea8e899e48f1f2f396b70e63fae369f2f23232Kristian Monsen#define FontUtilsChromiumWin_h 38635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 39635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include <usp10.h> 40635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include <wchar.h> 41635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include <windows.h> 42635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 43635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "FontDescription.h" 44635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include <unicode/uscript.h> 45635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 46635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectnamespace WebCore { 47635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 48635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Return a font family that supports a script and belongs to |generic| font 49635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// family. It can return NULL and a caller has to implement its own fallback. 50635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectconst UChar* getFontFamilyForScript(UScriptCode, FontDescription::GenericFamilyType); 51635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 52635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Return a font family that can render |characters| based on 53635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// what script characters belong to. When char_checked is non-NULL, 54635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// it's filled with the character used to determine the script. 55635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// When script_checked is non-NULL, the script used to determine 56635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// the family is returned. 57635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// FIXME: This function needs a total overhaul. 58635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectconst UChar* getFallbackFamily(const UChar* characters, int length, 59635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project FontDescription::GenericFamilyType, 60635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project UChar32* charChecked, 61635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project UScriptCode* scriptChecked); 62635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 63635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Derive a new HFONT by replacing lfFaceName of LOGFONT with |family|, 64635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// calculate the ascent for the derived HFONT, and initialize SCRIPT_CACHE 65635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// in FontData. 66635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// |style| is only used for cache key generation. |style| is 67635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// bit-wise OR of BOLD(1), UNDERLINED(2) and ITALIC(4) and 68635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// should match what's contained in LOGFONT. It should be calculated 69635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// by calling GetStyleFromLogFont. 70635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Returns false if the font is not accessible, in which case |ascent| field 71635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// of |fontdata| is set to kUndefinedAscent. 72635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Be aware that this is not thread-safe. 73635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// FIXME: Instead of having three out params, we'd better have one 74635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// (|*FontData|), but somehow it mysteriously messes up the layout for 75635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// certain complex script pages (e.g. hi.wikipedia.org) and also crashes 76635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// at the start-up if recently visited page list includes pages with complex 77635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// scripts in their title. Moreover, somehow the very first-pass of 78635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// intl2 page-cycler test is noticeably slower with one out param than 79635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// the current version although the subsequent 9 passes take about the 80635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// same time. 812daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochbool getDerivedFontData(const UChar* family, int style, LOGFONT*, int* ascent, HFONT*, SCRIPT_CACHE**, WORD* spaceGlyph); 82635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 83635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectenum { 84635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project FontStyleNormal = 0, 85635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project FontStyleBold = 1, 86635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project FontStyleItalic = 2, 87635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project FontStyleUnderlined = 4 88635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project}; 89635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 90635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// Derive style (bit-wise OR of FONT_STYLE_BOLD, FONT_STYLE_UNDERLINED, and 91635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project// FONT_STYLE_ITALIC) from LOGFONT. Returns 0 if |*logfont| is NULL. 92635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectint getStyleFromLogfont(const LOGFONT*); 93635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 94635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project} // namespace WebCore 95635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 9606ea8e899e48f1f2f396b70e63fae369f2f23232Kristian Monsen#endif // FontUtilsChromiumWin_h 97