2 *******************************************************************************
4 * Copyright (C) 2016 and later: Unicode, Inc. and others.
5 * License & terms of use: http://www.unicode.org/copyright.html#License
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10 * Copyright (C) 1999-2003, International Business Machines
11 * Corporation and others. All Rights Reserved.
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14 * file name: ScriptCompositeFontInstance.cpp
16 * created on: 02/05/2003
17 * created by: Eric R. Mader
20 #include "layout/LETypes.h"
22 #include "unicode/uscript.h"
26 #include "ScriptCompositeFontInstance.h"
28 const char ScriptCompositeFontInstance::fgClassID=0;
30 ScriptCompositeFontInstance::ScriptCompositeFontInstance(FontMap *fontMap)
36 ScriptCompositeFontInstance::~ScriptCompositeFontInstance()
42 void ScriptCompositeFontInstance::getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const
44 LEErrorCode status = LE_NO_ERROR;
45 le_int32 script = LE_GET_SUB_FONT(glyph);
46 const LEFontInstance *font = fFontMap->getScriptFont(script, status);
51 if (LE_SUCCESS(status)) {
52 font->getGlyphAdvance(LE_GET_GLYPH(glyph), advance);
56 le_bool ScriptCompositeFontInstance::getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const
58 LEErrorCode status = LE_NO_ERROR;
59 le_int32 script = LE_GET_SUB_FONT(glyph);
60 const LEFontInstance *font = fFontMap->getScriptFont(script, status);
62 if (LE_SUCCESS(status)) {
63 return font->getGlyphPoint(LE_GET_GLYPH(glyph), pointNumber, point);
69 const LEFontInstance *ScriptCompositeFontInstance::getSubFont(const LEUnicode chars[], le_int32 *offset, le_int32 limit, le_int32 script, LEErrorCode &success) const
71 if (LE_FAILURE(success)) {
75 if (chars == NULL || *offset < 0 || limit < 0 || *offset >= limit || script < 0 || script >= scriptCodeCount) {
76 success = LE_ILLEGAL_ARGUMENT_ERROR;
80 const LEFontInstance *result = fFontMap->getScriptFont(script, success);
82 if (LE_FAILURE(success)) {
90 // This is the really stupid version that doesn't look in any other font for the character...
91 // It would be better to also look in the "DEFAULT:" font. Another thing to do would be to
92 // look in all the fonts in some order, script code order being the most obvious...
93 LEGlyphID ScriptCompositeFontInstance::mapCharToGlyph(LEUnicode32 ch) const
95 UErrorCode error = U_ZERO_ERROR;
96 LEErrorCode status = LE_NO_ERROR;
97 le_int32 script = uscript_getScript(ch, &error);
98 const LEFontInstance *scriptFont = fFontMap->getScriptFont(script, status);
99 LEGlyphID subFont = LE_SET_SUB_FONT(0, script);
101 if (LE_FAILURE(status)) {
105 LEGlyphID glyph = scriptFont->mapCharToGlyph(ch);
107 return LE_SET_GLYPH(subFont, glyph);