Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/SVGGlyph.cpp

Index: Source/core/platform/graphics/SVGGlyph.cpp
diff --git a/Source/core/platform/graphics/SVGGlyph.cpp b/Source/core/platform/graphics/SVGGlyph.cpp
deleted file mode 100644
index 1acfbb1113a237d89a1575c3d4dec6b1987df05a..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/SVGGlyph.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-
-#if ENABLE(SVG_FONTS)
-#include "core/platform/graphics/SVGGlyph.h"
-
-#include "wtf/unicode/Unicode.h"
-
-using namespace WTF::Unicode;
-
-namespace WebCore {
-
-// Helper functions to determine the arabic character forms (initial, medial, terminal, isolated)
-enum ArabicCharShapingMode {
-    SNone = 0,
-    SRight = 1,
-    SDual = 2
-};
-
-static const ArabicCharShapingMode s_arabicCharShapingMode[222] = {
-    SRight, SRight, SRight, SRight, SDual , SRight, SDual , SRight, SDual , SDual , SDual , SDual , SDual , SRight,                 /* 0x0622 - 0x062F */
-    SRight, SRight, SRight, SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SNone , SNone , SNone , SNone , SNone , /* 0x0630 - 0x063F */
-    SNone , SDual , SDual , SDual , SDual , SDual , SDual , SRight, SDual , SDual , SNone , SNone , SNone , SNone , SNone , SNone , /* 0x0640 - 0x064F */
-    SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , /* 0x0650 - 0x065F */
-    SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , /* 0x0660 - 0x066F */
-    SNone , SRight, SRight, SRight, SNone , SRight, SRight, SRight, SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , /* 0x0670 - 0x067F */
-    SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, /* 0x0680 - 0x068F */
-    SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SDual , SDual , SDual , SDual , SDual , SDual , /* 0x0690 - 0x069F */
-    SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , /* 0x06A0 - 0x06AF */
-    SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , SDual , /* 0x06B0 - 0x06BF */
-    SRight, SDual , SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SRight, SDual , SRight, SDual , SRight, /* 0x06C0 - 0x06CF */
-    SDual , SDual , SRight, SRight, SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , /* 0x06D0 - 0x06DF */
-    SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , /* 0x06E0 - 0x06EF */
-    SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SNone , SDual , SDual , SDual , SNone , SNone , SNone   /* 0x06F0 - 0x06FF */
-};
-
-static inline SVGGlyph::ArabicForm processArabicFormDetection(const UChar& curChar, bool& lastCharShapesRight, SVGGlyph::ArabicForm* prevForm)
-{
-    SVGGlyph::ArabicForm curForm;
-
-    ArabicCharShapingMode shapingMode = SNone;
-    if (curChar >= 0x0622 && curChar <= 0x06FF)
-        shapingMode = s_arabicCharShapingMode[curChar - 0x0622];
-
-    // Use a simple state machine to identify the actual arabic form
-    // It depends on the order of the arabic form enum:
-    // enum ArabicForm { None = 0, Isolated, Terminal, Initial, Medial };
-
-    if (lastCharShapesRight && shapingMode == SDual) {
-        if (prevForm) {
-            int correctedForm = (int) *prevForm + 1;
-            ASSERT(correctedForm >= SVGGlyph::None && correctedForm <= SVGGlyph::Medial);
-            *prevForm = static_cast<SVGGlyph::ArabicForm>(correctedForm);
-        }
-
-        curForm = SVGGlyph::Initial;
-    } else
-        curForm = shapingMode == SNone ? SVGGlyph::None : SVGGlyph::Isolated;
-
-    lastCharShapesRight = shapingMode != SNone;
-    return curForm;
-}
-
-Vector<SVGGlyph::ArabicForm> charactersWithArabicForm(const String& input, bool rtl)
-{
-    Vector<SVGGlyph::ArabicForm> forms;
-    unsigned length = input.length();
-
-    bool containsArabic = false;
-    for (unsigned i = 0; i < length; ++i) {
-        if (isArabicChar(input[i])) {
-            containsArabic = true;
-            break;
-        }
-    }
-
-    if (!containsArabic)
-        return forms;
-
-    bool lastCharShapesRight = false;
-
-    // Start identifying arabic forms
-    if (rtl) {
-        for (int i = length - 1; i >= 0; --i)
-            forms.prepend(processArabicFormDetection(input[i], lastCharShapesRight, forms.isEmpty() ? 0 : &forms.first()));
-    } else {
-        for (unsigned i = 0; i < length; ++i)
-            forms.append(processArabicFormDetection(input[i], lastCharShapesRight, forms.isEmpty() ? 0 : &forms.last()));
-    }
-
-    return forms;
-}
-
-static inline bool isCompatibleArabicForm(const SVGGlyph& identifier, const Vector<SVGGlyph::ArabicForm>& chars, unsigned startPosition, unsigned endPosition)
-{
-    if (chars.isEmpty())
-        return true;
-
-    Vector<SVGGlyph::ArabicForm>::const_iterator realEnd = chars.end();
-    Vector<SVGGlyph::ArabicForm>::const_iterator it = chars.begin() + startPosition;
-    if (it >= realEnd)
-        return true;
-
-    Vector<SVGGlyph::ArabicForm>::const_iterator end = chars.begin() + endPosition;
-    if (end >= realEnd)
-        end = realEnd;
-
-    for (; it != end; ++it) {
-        if (*it != static_cast<SVGGlyph::ArabicForm>(identifier.arabicForm) && *it != SVGGlyph::None)
-            return false;
-    }
-
-    return true;
-}
-
-bool isCompatibleGlyph(const SVGGlyph& identifier, bool isVerticalText, const String& language,
-                       const Vector<SVGGlyph::ArabicForm>& chars, unsigned startPosition, unsigned endPosition)
-{
-    bool valid = true;
-
-    // Check wheter orientation if glyph fits within the request
-    switch (identifier.orientation) {
-    case SVGGlyph::Vertical:
-        valid = isVerticalText;
-        break;
-    case SVGGlyph::Horizontal:
-        valid = !isVerticalText;
-        break;
-    case SVGGlyph::Both:
-        break;
-    }
-
-    if (!valid)
-        return false;
-
-    // Check wheter languages are compatible
-    if (!identifier.languages.isEmpty()) {
-        // This glyph exists only in certain languages, if we're not specifying a
-        // language on the referencing element we're unable to use this glyph.
-        if (language.isEmpty())
-            return false;
-
-        // Split subcode from language, if existant.
-        String languagePrefix;
-
-        size_t subCodeSeparator = language.find('-');
-        if (subCodeSeparator != kNotFound)
-            languagePrefix = language.left(subCodeSeparator);
-
-        Vector<String>::const_iterator it = identifier.languages.begin();
-        Vector<String>::const_iterator end = identifier.languages.end();
-
-        bool found = false;
-        for (; it != end; ++it) {
-            const String& cur = *it;
-            if (cur == language || cur == languagePrefix) {
-                found = true;
-                break;
-            }
-        }
-
-        if (!found)
-            return false;
-    }
-
-    // Check wheter arabic form is compatible
-    return isCompatibleArabicForm(identifier, chars, startPosition, endPosition);
-}
-
-}
-
-#endif