void CPDF_TextObject::CalcCharPos(FX_FLOAT* pPosArray) const
{
CPDF_Font* pFont = m_TextState.GetFont();
FX_BOOL bVertWriting = FALSE;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
if (pCIDFont) {
bVertWriting = pCIDFont->IsVertWriting();
}
FX_FLOAT fontsize = m_TextState.GetFontSize();
for (int i = 0, index = 0; i < m_nChars; ++i) {
FX_DWORD charcode = m_nChars == 1 ?
(FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[i];
if (charcode == (FX_DWORD) - 1) {
continue;
}
pPosArray[index++] = i ? m_pCharPos[i - 1] : 0;
FX_FLOAT charwidth;
if (bVertWriting) {
FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
} else {
charwidth = pFont->GetCharWidthF(charcode) * fontsize / 1000;
}
pPosArray[index] = pPosArray[index - 1] + charwidth;
index++;
}
}
void CPDF_CharPosList::Load(int nChars,
FX_DWORD* pCharCodes,
FX_FLOAT* pCharPos,
CPDF_Font* pFont,
FX_FLOAT FontSize) {
m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars);
m_nChars = 0;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting();
for (int iChar = 0; iChar < nChars; iChar++) {
FX_DWORD CharCode =
nChars == 1 ? (FX_DWORD)(uintptr_t)pCharCodes : pCharCodes[iChar];
if (CharCode == (FX_DWORD)-1) {
continue;
}
FX_BOOL bVert = FALSE;
FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
if (pCIDFont) {
charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode);
}
charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode);
#endif
if (!pFont->IsEmbedded() && pFont->GetFontType() != PDFFONT_CIDFONT) {
charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode);
} else {
charpos.m_FontCharWidth = 0;
}
charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0;
charpos.m_OriginY = 0;
charpos.m_bGlyphAdjust = FALSE;
if (pCIDFont == NULL) {
continue;
}
FX_WORD CID = pCIDFont->CIDFromCharCode(CharCode);
if (bVertWriting) {
charpos.m_OriginY = charpos.m_OriginX;
charpos.m_OriginX = 0;
short vx, vy;
pCIDFont->GetVertOrigin(CID, vx, vy);
charpos.m_OriginX -= FontSize * vx / 1000;
charpos.m_OriginY -= FontSize * vy / 1000;
}
const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID);
if (pTransform && !bVert) {
charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]);
charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]);
charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]);
charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]);
charpos.m_OriginX +=
pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize;
charpos.m_OriginY +=
pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize;
charpos.m_bGlyphAdjust = TRUE;
}
}
}
FX_FLOAT CPDF_TextObject::GetCharWidth(FX_DWORD charcode) const {
FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
CPDF_Font* pFont = m_TextState.GetFont();
FX_BOOL bVertWriting = FALSE;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
if (pCIDFont) {
bVertWriting = pCIDFont->IsVertWriting();
}
if (!bVertWriting)
return pFont->GetCharWidthF(charcode, 0) * fontsize;
FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
return pCIDFont->GetVertWidth(CID) * fontsize;
}
FX_FLOAT CPDF_TextObject::GetSpaceCharWidth() const {
CPDF_Font* pFont = m_TextState.GetFont();
FX_DWORD charCode = m_TextState.GetFont()->CharCodeFromUnicode(32);
if (charCode != (FX_DWORD)-1) {
return GetCharWidth(charCode);
}
FX_FLOAT fontSize = m_TextState.GetFontSize() / 4000.0f;
FX_BOOL bVertWriting = FALSE;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
if (pCIDFont) {
bVertWriting = pCIDFont->IsVertWriting();
}
FX_RECT fontRect;
pFont->GetFontBBox(fontRect);
fontSize *=
bVertWriting ? (FX_FLOAT)fontRect.Height() : (FX_FLOAT)fontRect.Width();
return fontSize;
}
void CPDF_TextObject::GetCharRect(int index, CFX_FloatRect& rect) const
{
CPDF_Font* pFont = m_TextState.GetFont();
FX_BOOL bVertWriting = FALSE;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
if (pCIDFont) {
bVertWriting = pCIDFont->IsVertWriting();
}
FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
int count = 0;
for (int i = 0; i < m_nChars; ++i) {
FX_DWORD charcode = m_nChars == 1 ?
(FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[i];
if (charcode == (FX_DWORD) - 1) {
continue;
}
if (count != index) {
++count;
continue;
}
FX_FLOAT curpos = i > 0 ? m_pCharPos[i - 1] : 0;
FX_RECT char_rect;
pFont->GetCharBBox(charcode, char_rect, 0);
if (!bVertWriting) {
rect.left = curpos + char_rect.left * fontsize;
rect.right = curpos + char_rect.right * fontsize;
rect.top = char_rect.top * fontsize;
rect.bottom = char_rect.bottom * fontsize;
} else {
FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
short vx, vy;
pCIDFont->GetVertOrigin(CID, vx, vy);
char_rect.left -= vx;
char_rect.right -= vx;
char_rect.top -= vy;
char_rect.bottom -= vy;
rect.left = char_rect.left * fontsize;
rect.right = char_rect.right * fontsize;
rect.top = curpos + char_rect.top * fontsize;
rect.bottom = curpos + char_rect.bottom * fontsize;
}
return;
}
}
void CPDF_CharPosList::Load(const std::vector<uint32_t>& charCodes,
const std::vector<FX_FLOAT>& charPos,
CPDF_Font* pFont,
FX_FLOAT FontSize) {
int nChars = pdfium::CollectionSize<int>(charCodes);
m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars);
m_nChars = 0;
CPDF_CIDFont* pCIDFont = pFont->AsCIDFont();
bool bVertWriting = pCIDFont && pCIDFont->IsVertWriting();
for (int iChar = 0; iChar < nChars; iChar++) {
uint32_t CharCode = charCodes[iChar];
if (CharCode == static_cast<uint32_t>(-1))
continue;
bool bVert = false;
FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
if (pCIDFont)
charpos.m_bFontStyle = true;
charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
if (charpos.m_GlyphIndex != static_cast<uint32_t>(-1)) {
charpos.m_FallbackFontPosition = -1;
} else {
charpos.m_FallbackFontPosition =
pFont->FallbackFontFromCharcode(CharCode);
charpos.m_GlyphIndex = pFont->FallbackGlyphFromCharcode(
charpos.m_FallbackFontPosition, CharCode);
}
// TODO(npm): Figure out how this affects m_ExtGID
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode);
#endif
if (!pFont->IsEmbedded() && !pFont->IsCIDFont())
charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode);
else
charpos.m_FontCharWidth = 0;
charpos.m_Origin = CFX_PointF(iChar ? charPos[iChar - 1] : 0, 0);
charpos.m_bGlyphAdjust = false;
if (!pCIDFont)
continue;
uint16_t CID = pCIDFont->CIDFromCharCode(CharCode);
if (bVertWriting) {
charpos.m_Origin = CFX_PointF(0, charpos.m_Origin.x);
short vx;
short vy;
pCIDFont->GetVertOrigin(CID, vx, vy);
charpos.m_Origin.x -= FontSize * vx / 1000;
charpos.m_Origin.y -= FontSize * vy / 1000;
}
const uint8_t* pTransform = pCIDFont->GetCIDTransform(CID);
if (pTransform && !bVert) {
charpos.m_AdjustMatrix[0] = pCIDFont->CIDTransformToFloat(pTransform[0]);
charpos.m_AdjustMatrix[2] = pCIDFont->CIDTransformToFloat(pTransform[2]);
charpos.m_AdjustMatrix[1] = pCIDFont->CIDTransformToFloat(pTransform[1]);
charpos.m_AdjustMatrix[3] = pCIDFont->CIDTransformToFloat(pTransform[3]);
charpos.m_Origin.x +=
pCIDFont->CIDTransformToFloat(pTransform[4]) * FontSize;
charpos.m_Origin.y +=
pCIDFont->CIDTransformToFloat(pTransform[5]) * FontSize;
charpos.m_bGlyphAdjust = true;
}
}
}
void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX,
FX_FLOAT* pTextAdvanceY,
FX_FLOAT horz_scale,
int level)
{
FX_FLOAT curpos = 0;
FX_FLOAT min_x = 10000 * 1.0f;
FX_FLOAT max_x = -10000 * 1.0f;
FX_FLOAT min_y = 10000 * 1.0f;
FX_FLOAT max_y = -10000 * 1.0f;
CPDF_Font* pFont = m_TextState.GetFont();
FX_BOOL bVertWriting = FALSE;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
if (pCIDFont) {
bVertWriting = pCIDFont->IsVertWriting();
}
FX_FLOAT fontsize = m_TextState.GetFontSize();
for (int i = 0; i < m_nChars; ++i) {
FX_DWORD charcode = m_nChars == 1 ?
(FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[i];
if (charcode == (FX_DWORD) - 1) {
curpos -= FXSYS_Mul(m_pCharPos[i - 1], fontsize) / 1000;
continue;
}
if (i) {
m_pCharPos[i - 1] = curpos;
}
FX_RECT char_rect;
pFont->GetCharBBox(charcode, char_rect, level);
FX_FLOAT charwidth;
if (!bVertWriting) {
if (min_y > char_rect.top) {
min_y = (FX_FLOAT)char_rect.top;
}
if (max_y < char_rect.top) {
max_y = (FX_FLOAT)char_rect.top;
}
if (min_y > char_rect.bottom) {
min_y = (FX_FLOAT)char_rect.bottom;
}
if (max_y < char_rect.bottom) {
max_y = (FX_FLOAT)char_rect.bottom;
}
FX_FLOAT char_left = curpos + char_rect.left * fontsize / 1000;
FX_FLOAT char_right = curpos + char_rect.right * fontsize / 1000;
if (min_x > char_left) {
min_x = char_left;
}
if (max_x < char_left) {
max_x = char_left;
}
if (min_x > char_right) {
min_x = char_right;
}
if (max_x < char_right) {
max_x = char_right;
}
charwidth = pFont->GetCharWidthF(charcode, level) * fontsize / 1000;
} else {
FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
short vx;
short vy;
pCIDFont->GetVertOrigin(CID, vx, vy);
char_rect.left -= vx;
char_rect.right -= vx;
char_rect.top -= vy;
char_rect.bottom -= vy;
if (min_x > char_rect.left) {
min_x = (FX_FLOAT)char_rect.left;
}
if (max_x < char_rect.left) {
max_x = (FX_FLOAT)char_rect.left;
}
if (min_x > char_rect.right) {
min_x = (FX_FLOAT)char_rect.right;
}
if (max_x < char_rect.right) {
max_x = (FX_FLOAT)char_rect.right;
}
FX_FLOAT char_top = curpos + char_rect.top * fontsize / 1000;
FX_FLOAT char_bottom = curpos + char_rect.bottom * fontsize / 1000;
if (min_y > char_top) {
min_y = char_top;
}
if (max_y < char_top) {
max_y = char_top;
}
if (min_y > char_bottom) {
min_y = char_bottom;
}
if (max_y < char_bottom) {
max_y = char_bottom;
}
charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
}
curpos += charwidth;
if (charcode == ' ' && (!pCIDFont || pCIDFont->GetCharSize(32) == 1)) {
curpos += m_TextState.GetObject()->m_WordSpace;
}
curpos += m_TextState.GetObject()->m_CharSpace;
}
if (bVertWriting) {
if (pTextAdvanceX) {
*pTextAdvanceX = 0;
}
if (pTextAdvanceY) {
*pTextAdvanceY = curpos;
}
min_x = min_x * fontsize / 1000;
max_x = max_x * fontsize / 1000;
} else {
if (pTextAdvanceX) {
*pTextAdvanceX = FXSYS_Mul(curpos, horz_scale);
}
if (pTextAdvanceY) {
*pTextAdvanceY = 0;
}
min_y = min_y * fontsize / 1000;
max_y = max_y * fontsize / 1000;
}
CFX_AffineMatrix matrix;
GetTextMatrix(&matrix);
m_Left = min_x;
m_Right = max_x;
m_Bottom = min_y;
m_Top = max_y;
matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
int textmode = m_TextState.GetObject()->m_TextMode;
if (textmode == 1 || textmode == 2 || textmode == 5 || textmode == 6) {
FX_FLOAT half_width = m_GraphState.GetObject()->m_LineWidth / 2;
m_Left -= half_width;
m_Right += half_width;
m_Top += half_width;
m_Bottom -= half_width;
}
}
