1231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block/* 2231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * Copyright (C) 2007 Ryan Leavengood <leavengood@gmail.com> 3231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * 4231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * All rights reserved. 5231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * 6231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * Redistribution and use in source and binary forms, with or without 7231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * modification, are permitted provided that the following conditions 8231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * are met: 9231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * 1. Redistributions of source code must retain the above copyright 10231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * notice, this list of conditions and the following disclaimer. 11231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * 2. Redistributions in binary form must reproduce the above copyright 12231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * notice, this list of conditions and the following disclaimer in the 13231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * documentation and/or other materials provided with the distribution. 14231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * 15231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 16231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 19231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 23231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block */ 27231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 28231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "config.h" 29231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "Font.h" 30231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 31231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "FontData.h" 32231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "FontDescription.h" 33231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "FontSelector.h" 34231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "GraphicsContext.h" 35231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include "NotImplemented.h" 36231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include <Font.h> 37231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include <String.h> 38231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block#include <View.h> 39231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 40231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 41231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block// FIXME: Temp routine to convert unicode character to UTF8. 42231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockint charUnicodeToUTF8HACK(unsigned short glyph, char* out) 43231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 44231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block int i = 0; 45231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 46231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (glyph < 0x0080) 47231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = static_cast<char>(glyph); 48231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block else if (glyph < 0x0800) { // 2 bytes 49231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = 0xc0 | (glyph >> 6); 50231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = 0x80 | (glyph & 0x3F); 51231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } else if (glyph > 0x0800) { // 3 bytes 52231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = 0xe0 | (glyph >> 12); 53231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = 0x80 | ((glyph >> 6) & 0x3F); 54231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i++] = 0x80 | (glyph & 0x3F); 55231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 56231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 57231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block out[i] = '\0'; 58231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return i; 59231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 60231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 61231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blocknamespace WebCore { 62231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 63231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockbool Font::canReturnFallbackFontsForComplexText() 64231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 65231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return false; 66231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 67231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 682fc2651226baac27029e38c9d6ef883fa32084dbSteve Blockbool Font::canExpandAroundIdeographsInComplexText() 692fc2651226baac27029e38c9d6ef883fa32084dbSteve Block{ 702fc2651226baac27029e38c9d6ef883fa32084dbSteve Block return false; 712fc2651226baac27029e38c9d6ef883fa32084dbSteve Block} 722fc2651226baac27029e38c9d6ef883fa32084dbSteve Block 73231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid Font::drawGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, 74231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const 75231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 76231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block Color color = graphicsContext->fillColor(); 77231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block BView* view = graphicsContext->platformContext(); 78231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block BFont* m_font = font->platformData().font(); 79231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 80231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block graphicsContext->setCompositeOperation(CompositeSourceOver); 81231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block view->SetHighColor(color); 82231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block view->SetFont(m_font); 83231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 84231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block GlyphBufferGlyph* glyphs = const_cast<GlyphBufferGlyph*>(glyphBuffer.glyphs(from)); 85231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block float offset = point.x(); 86231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block for (int i = 0; i < numGlyphs; i++) { 87231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block char out[4]; 88231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block charUnicodeToUTF8HACK(glyphs[i], out); 89231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 90231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block view->DrawString(out, sizeof(out), BPoint(offset, point.y())); 91231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block offset += glyphBuffer.advanceAt(from + i); 92231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 93231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 94231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 95231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Blockvoid Font::drawComplexText(GraphicsContext* ctx, const TextRun& run, const FloatPoint& point, 96231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block int from, int to) const 97231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 98231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block notImplemented(); 99231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 100231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 101f05b935882198ccf7d81675736e3aeb089c5113aBen Murdochvoid Font::drawEmphasisMarksForComplexText(GraphicsContext* /* context */, const TextRun& /* run */, const AtomicString& /* mark */, const FloatPoint& /* point */, int /* from */, int /* to */) const 102f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch{ 103f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch notImplemented(); 104f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch} 105231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 106dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Blockfloat Font::floatWidthForComplexText(const TextRun& run, HashSet<const SimpleFontData*>* fallbackFonts, GlyphOverflow* glyphOverflow) const 107231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 108231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block notImplemented(); 109231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return 0; 110231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 111231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 11206ea8e899e48f1f2f396b70e63fae369f2f23232Kristian MonsenFloatRect Font::selectionRectForComplexText(const TextRun&, const FloatPoint&, int, int, int) const 113231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 114231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block notImplemented(); 115231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return FloatRect(); 116231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 117231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 11806ea8e899e48f1f2f396b70e63fae369f2f23232Kristian Monsenint Font::offsetForPositionForComplexText(const TextRun&, float, bool) const 119231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block{ 120231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block notImplemented(); 121231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return 0; 122231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} 123231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 124231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block} // namespace WebCore 125231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 126