1 /* 2 * Copyright (C) 2007 Ryan Leavengood <leavengood (at) gmail.com> 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "config.h" 29 #include "Font.h" 30 31 #include "FontData.h" 32 #include "FontDescription.h" 33 #include "FontSelector.h" 34 #include "GraphicsContext.h" 35 #include "NotImplemented.h" 36 #include <Font.h> 37 #include <String.h> 38 #include <View.h> 39 40 41 // FIXME: Temp routine to convert unicode character to UTF8. 42 int charUnicodeToUTF8HACK(unsigned short glyph, char* out) 43 { 44 int i = 0; 45 46 if (glyph < 0x0080) 47 out[i++] = static_cast<char>(glyph); 48 else if (glyph < 0x0800) { // 2 bytes 49 out[i++] = 0xc0 | (glyph >> 6); 50 out[i++] = 0x80 | (glyph & 0x3F); 51 } else if (glyph > 0x0800) { // 3 bytes 52 out[i++] = 0xe0 | (glyph >> 12); 53 out[i++] = 0x80 | ((glyph >> 6) & 0x3F); 54 out[i++] = 0x80 | (glyph & 0x3F); 55 } 56 57 out[i] = '\0'; 58 return i; 59 } 60 61 namespace WebCore { 62 63 bool Font::canReturnFallbackFontsForComplexText() 64 { 65 return false; 66 } 67 68 void Font::drawGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, 69 const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const 70 { 71 Color color = graphicsContext->fillColor(); 72 BView* view = graphicsContext->platformContext(); 73 BFont* m_font = font->platformData().font(); 74 75 graphicsContext->setCompositeOperation(CompositeSourceOver); 76 view->SetHighColor(color); 77 view->SetFont(m_font); 78 79 GlyphBufferGlyph* glyphs = const_cast<GlyphBufferGlyph*>(glyphBuffer.glyphs(from)); 80 float offset = point.x(); 81 for (int i = 0; i < numGlyphs; i++) { 82 char out[4]; 83 charUnicodeToUTF8HACK(glyphs[i], out); 84 85 view->DrawString(out, sizeof(out), BPoint(offset, point.y())); 86 offset += glyphBuffer.advanceAt(from + i); 87 } 88 } 89 90 void Font::drawComplexText(GraphicsContext* ctx, const TextRun& run, const FloatPoint& point, 91 int from, int to) const 92 { 93 notImplemented(); 94 } 95 96 97 float Font::floatWidthForComplexText(const TextRun& run, HashSet<const SimpleFontData*>* fallbackFonts) const 98 { 99 notImplemented(); 100 return 0; 101 } 102 103 FloatRect Font::selectionRectForComplexText(const TextRun&, const IntPoint&, int, int, int) const 104 { 105 notImplemented(); 106 return FloatRect(); 107 } 108 109 int Font::offsetForPositionForComplexText(const TextRun&, int, bool) const 110 { 111 notImplemented(); 112 return 0; 113 } 114 115 } // namespace WebCore 116 117
