ICU-64232.0.1.tar.gz

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

diff --git a/icuSources/layout/ThaiLayoutEngine.cpp b/icuSources/layout/ThaiLayoutEngine.cpp
deleted file mode 100644 (file)
index 3cfb09e..0000000
--- a/icuSources/layout/ThaiLayoutEngine.cpp
+++ /dev/null
@@ -1,122 +0,0 @@
-
-/*
- *
- * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
- *
- */
-
-#include "LETypes.h"
-#include "LayoutEngine.h"
-#include "ThaiLayoutEngine.h"
-#include "ScriptAndLanguageTags.h"
-#include "LEGlyphStorage.h"
-
-#include "KernTable.h"
-
-#include "ThaiShaping.h"
-
-U_NAMESPACE_BEGIN
-
-UOBJECT_DEFINE_RTTI_IMPLEMENTATION(ThaiLayoutEngine)
-
-ThaiLayoutEngine::ThaiLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, le_int32 typoFlags, LEErrorCode &success)
-    : LayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success)
-{
-    fErrorChar = 0x25CC;
-
-    // Figure out which presentation forms the font uses
-    if (! fontInstance->canDisplay(0x0E01)) {
-        // No Thai in font; don't use presentation forms.
-        fGlyphSet = 3;
-    } else if (fontInstance->canDisplay(0x0E64)) {
-        // WorldType uses reserved space in Thai block
-        fGlyphSet = 0;
-    } else if (fontInstance->canDisplay(0xF701)) {
-        // Microsoft corporate zone
-        fGlyphSet = 1;
-
-        if (!fontInstance->canDisplay(fErrorChar)) {
-            fErrorChar = 0xF71B;
-        }
-    } else if (fontInstance->canDisplay(0xF885)) {
-        // Apple corporate zone
-        fGlyphSet = 2;
-    } else {
-        // no presentation forms in the font
-        fGlyphSet = 3;
-    }
-}
-
-ThaiLayoutEngine::~ThaiLayoutEngine()
-{
-    // nothing to do
-}
-
-// Input: characters (0..max provided for context)
-// Output: glyphs, char indices
-// Returns: the glyph count
-// NOTE: this assumes that ThaiShaping::compose will allocate the outChars array...
-le_int32 ThaiLayoutEngine::computeGlyphs(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool /*rightToLeft*/, LEGlyphStorage &glyphStorage, LEErrorCode &success)
-{
-    if (LE_FAILURE(success)) {
-        return 0;
-    }
-
-    if (chars == NULL || offset < 0 || count < 0 || max < 0 || offset >= max || offset + count > max) {
-        success = LE_ILLEGAL_ARGUMENT_ERROR;
-        return 0;
-    }
-
-    LEUnicode *outChars;
-    le_int32 glyphCount;
-    
-    // This is enough room for the worst-case expansion
-    // (it says here...)
-    outChars = LE_NEW_ARRAY(LEUnicode, count * 2);
-
-    if (outChars == NULL) {
-        success = LE_MEMORY_ALLOCATION_ERROR;
-        return 0;
-    }
-
-    glyphStorage.allocateGlyphArray(count * 2, FALSE, success);
-
-    if (LE_FAILURE(success)) {
-        LE_DELETE_ARRAY(outChars);
-        success = LE_MEMORY_ALLOCATION_ERROR;
-        return 0;
-    }
-
-    glyphCount = ThaiShaping::compose(chars, offset, count, fGlyphSet, fErrorChar, outChars, glyphStorage);
-    mapCharsToGlyphs(outChars, 0, glyphCount, FALSE, FALSE, glyphStorage, success);
-
-    LE_DELETE_ARRAY(outChars);
-
-    glyphStorage.adoptGlyphCount(glyphCount);
-    return glyphCount;
-}
-
-// This is the same as LayoutEngline::adjustGlyphPositions() except that it doesn't call adjustMarkGlyphs
-void ThaiLayoutEngine::adjustGlyphPositions(const LEUnicode chars[], le_int32 offset, le_int32 count, le_bool  /*reverse*/,
-                                        LEGlyphStorage &glyphStorage, LEErrorCode &success)
-{
-    if (LE_FAILURE(success)) {
-        return;
-    }
-
-    if (chars == NULL || offset < 0 || count < 0) {
-        success = LE_ILLEGAL_ARGUMENT_ERROR;
-        return;
-    }
-
-    if (fTypoFlags & LE_Kerning_FEATURE_FLAG) { /* kerning enabled */
-      LETableReference kernTable(fFontInstance, LE_KERN_TABLE_TAG, success);
-      KernTable kt(kernTable, success);
-      kt.process(glyphStorage, success);
-    }
-
-    // default is no adjustments
-    return;
-}
-
-U_NAMESPACE_END