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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "xfa/src/fgas/layout/fgas_unicode.h"
void FX_TEXTLAYOUT_PieceSort(CFX_TPOArray& tpos, int32_t iStart, int32_t iEnd) {
FXSYS_assert(iStart > -1 && iStart < tpos.GetSize());
FXSYS_assert(iEnd > -1 && iEnd < tpos.GetSize());
if (iStart >= iEnd) {
return;
}
int32_t i = iStart, j = iEnd;
FX_TPO *pCur = tpos.GetPtrAt(iStart), *pSort;
int32_t v = pCur->pos;
while (i < j) {
while (j > i) {
pSort = tpos.GetPtrAt(j);
if (pSort->pos < v) {
FX_TPO t = *pSort;
*pSort = *pCur;
*pCur = t;
pCur = pSort;
break;
}
j--;
}
while (i < j) {
pSort = tpos.GetPtrAt(i);
if (pSort->pos > v) {
FX_TPO t = *pSort;
*pSort = *pCur;
*pCur = t;
pCur = pSort;
break;
}
i++;
}
}
i--, j++;
if (iStart < i) {
FX_TEXTLAYOUT_PieceSort(tpos, iStart, i);
}
if (j < iEnd) {
FX_TEXTLAYOUT_PieceSort(tpos, j, iEnd);
}
}
static const FX_JAPCHARPROPERTYEX gs_FX_JapCharPropertysEx[] = {
{0x3001, 0x13}, {0x3002, 0x13}, {0x3041, 0x23}, {0x3043, 0x23},
{0x3045, 0x23}, {0x3047, 0x23}, {0x3049, 0x23}, {0x3063, 0x23},
{0x3083, 0x23}, {0x3085, 0x23}, {0x3087, 0x23}, {0x308E, 0x23},
{0x3095, 0x23}, {0x3096, 0x23}, {0x30A1, 0x23}, {0x30A3, 0x23},
{0x30A5, 0x23}, {0x30A7, 0x23}, {0x30A9, 0x23}, {0x30C3, 0x23},
{0x30E3, 0x23}, {0x30E5, 0x23}, {0x30E7, 0x23}, {0x30EE, 0x23},
{0x30F5, 0x23}, {0x30F6, 0x23}, {0x30FB, 0x22}, {0x31F0, 0x23},
{0x31F1, 0x23}, {0x31F2, 0x23}, {0x31F3, 0x23}, {0x31F4, 0x23},
{0x31F5, 0x23}, {0x31F6, 0x23}, {0x31F7, 0x23}, {0x31F8, 0x23},
{0x31F9, 0x23}, {0x31FA, 0x23}, {0x31FB, 0x23}, {0x31FC, 0x23},
{0x31FD, 0x23}, {0x31FE, 0x23}, {0x31FF, 0x23},
};
const FX_JAPCHARPROPERTYEX* FX_GetJapCharPropertyEx(FX_WCHAR wch) {
int32_t iStart = 0;
int32_t iEnd =
sizeof(gs_FX_JapCharPropertysEx) / sizeof(FX_JAPCHARPROPERTYEX);
while (iStart <= iEnd) {
int32_t iMid = (iStart + iEnd) / 2;
FX_WCHAR wJapChar = gs_FX_JapCharPropertysEx[iMid].wChar;
if (wch == wJapChar) {
return gs_FX_JapCharPropertysEx + iMid;
} else if (wch < wJapChar) {
iEnd = iMid - 1;
} else {
iStart = iMid + 1;
}
}
return NULL;
}
FX_BOOL FX_AdjustJapCharDisplayPos(FX_WCHAR wch,
FX_BOOL bMBCSCode,
IFX_Font* pFont,
FX_FLOAT fFontSize,
FX_BOOL bVertical,
CFX_PointF& ptOffset) {
if (pFont == NULL || !bVertical) {
return FALSE;
}
if (wch < 0x3001 || wch > 0x31FF) {
return FALSE;
}
const FX_JAPCHARPROPERTYEX* pJapChar = FX_GetJapCharPropertyEx(wch);
if (pJapChar == NULL) {
return FALSE;
}
CFX_Rect rtBBox;
rtBBox.Reset();
if (pFont->GetCharBBox(wch, rtBBox, bMBCSCode)) {
switch (pJapChar->uAlign & 0xF0) {
case FX_JAPCHARPROPERTYEX_Top:
ptOffset.y = fFontSize * (1000 - rtBBox.height) / 1200.0f;
break;
case FX_JAPCHARPROPERTYEX_Middle:
ptOffset.y = fFontSize * (1000 - rtBBox.height) / 6000.0f;
break;
}
switch (pJapChar->uAlign & 0x0F) {
case FX_JAPCHARPROPERTYEX_Center:
ptOffset.x = fFontSize * (600 - rtBBox.right()) / 1000.0f;
break;
case FX_JAPCHARPROPERTYEX_Right:
ptOffset.x = fFontSize * (950 - rtBBox.right()) / 1000.0f;
break;
}
}
return TRUE;
}
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