ICU-64232.0.1.tar.gz

[apple/icu.git] / icuSources / layout / ThaiLayoutEngine.h

diff --git a/icuSources/layout/ThaiLayoutEngine.h b/icuSources/layout/ThaiLayoutEngine.h
deleted file mode 100644 (file)
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--- a/icuSources/layout/ThaiLayoutEngine.h
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-
-/*
- *
- * (C) Copyright IBM Corp. 1998-2014 - All Rights Reserved
- *
- */
-
-#ifndef __THAILAYOUTENGINE_H
-#define __THAILAYOUTENGINE_H
-
-#include "LETypes.h"
-#include "LEFontInstance.h"
-#include "LayoutEngine.h"
-
-#include "ThaiShaping.h"
-
-U_NAMESPACE_BEGIN
-
-class LEGlyphStorage;
-
-/**
- * This class implements layout for the Thai script, using the ThaiShapingClass.
- * All existing Thai fonts use an encoding which assigns character codes to all
- * the variant forms needed to display accents and tone marks correctly in context.
- * This class can deal with fonts using the Microsoft, Macintosh, and WorldType encodings.
- *
- * @internal
- */
-class ThaiLayoutEngine : public LayoutEngine
-{
-public:
-    /**
-     * This constructs an instance of ThaiLayoutEngine for the given font, script and
-     * language. It examines the font, using LEFontInstance::canDisplay, to set fGlyphSet
-     * and fErrorChar. (see below)
-     *
-     * @param fontInstance - the font
-     * @param scriptCode - the script
-     * @param languageCode - the language
-     * @param success - set to an error code if the operation fails
-     *
-     * @see LEFontInstance
-     * @see ScriptAndLanguageTags.h for script and language codes
-     *
-     * @internal
-     */
-    ThaiLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, le_int32 typoFlags, LEErrorCode &success);
-
-    /**
-     * The destructor, virtual for correct polymorphic invocation.
-     *
-     * @internal
-     */
-    virtual ~ThaiLayoutEngine();
-
-    /**
-     * ICU "poor man's RTTI", returns a UClassID for the actual class.
-     *
-     * @deprecated ICU 54. See {@link icu::LayoutEngine}
-     */
-    virtual UClassID getDynamicClassID() const;
-
-    /**
-     * ICU "poor man's RTTI", returns a UClassID for this class.
-     *
-     * @deprecated ICU 54. See {@link icu::LayoutEngine}
-     */
-    static UClassID getStaticClassID();
-
-protected:
-    /**
-     * A small integer indicating which Thai encoding
-     * the font uses.
-     *
-     * @see ThaiShaping
-     *
-     * @internal
-     */
-    le_uint8 fGlyphSet;
-
-    /**
-     * The character used as a base for vowels and
-     * tone marks that are out of sequence. Usually
-     * this will be Unicode 0x25CC, if the font can
-     * display it.
-     *
-     * @see ThaiShaping
-     *
-     * @internal
-     */
-    LEUnicode fErrorChar;
-
-    /**
-     * This method performs Thai layout. It calls ThaiShaping::compose to
-     * generate the correct contextual character codes, and then calls
-     * mapCharsToGlyphs to generate the glyph indices.
-     *
-     * Input parameters:
-     * @param chars - the input character context
-     * @param offset - the index of the first character to process
-     * @param count - the number of characters to process
-     * @param max - the number of characters in the input context
-     * @param rightToLeft - <code>TRUE</code> if the text is in a right to left directional run
-     * @param glyphStorage - the glyph storage object. The glyph and char index arrays will be set.
-     *
-     * Output parameters:
-     * @param success - set to an error code if the operation fails
-     *
-     * @return the number of glyphs in the glyph index array
-     *
-     * @see ThaiShaping
-     *
-     * @internal
-     */
-    virtual le_int32 computeGlyphs(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
-        LEGlyphStorage &glyphStorage, LEErrorCode &success);
-
-    /**
-     * This method does positioning adjustments like accent positioning and
-     * kerning. The default implementation does nothing. Subclasses needing
-     * position adjustments must override this method.
-     *
-     * Note that this method has both characters and glyphs as input so that
-     * it can use the character codes to determine glyph types if that information
-     * isn't directly available. (e.g. Some Arabic OpenType fonts don't have a GDEF
-     * table)
-     *
-     * @param chars - the input character context
-     * @param offset - the offset of the first character to process
-     * @param count - the number of characters to process
-     * @param reverse - <code>TRUE</code> if the glyphs in the glyph array have been reordered
-     * @param glyphStorage - the object which holds the per-glyph storage. The glyph positions will be
-     *                       adjusted as needed.
-     * @param success - output parameter set to an error code if the operation fails
-     *
-     * @internal
-     */
-    virtual void adjustGlyphPositions(const LEUnicode chars[], le_int32 offset, le_int32 count, le_bool reverse, LEGlyphStorage &glyphStorage, LEErrorCode &success);
-
-};
-
-U_NAMESPACE_END
-#endif
-