diff options
Diffstat (limited to 'core/fpdfapi/fpdf_page/cpdf_textobject.cpp')
| -rw-r--r-- | core/fpdfapi/fpdf_page/cpdf_textobject.cpp | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/core/fpdfapi/fpdf_page/cpdf_textobject.cpp b/core/fpdfapi/fpdf_page/cpdf_textobject.cpp deleted file mode 100644 index 97f6ad2bcd..0000000000 --- a/core/fpdfapi/fpdf_page/cpdf_textobject.cpp +++ /dev/null @@ -1,388 +0,0 @@ -// Copyright 2016 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 "core/fpdfapi/fpdf_page/cpdf_textobject.h" - -#include "core/fpdfapi/font/cpdf_cidfont.h" -#include "core/fpdfapi/font/cpdf_font.h" - -CPDF_TextObject::CPDF_TextObject() - : m_PosX(0), - m_PosY(0), - m_nChars(0), - m_pCharCodes(nullptr), - m_pCharPos(nullptr) {} - -CPDF_TextObject::~CPDF_TextObject() { - if (m_nChars > 1) { - FX_Free(m_pCharCodes); - } - FX_Free(m_pCharPos); -} - -int CPDF_TextObject::CountItems() const { - return m_nChars; -} - -void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const { - pInfo->m_CharCode = - m_nChars == 1 ? (uint32_t)(uintptr_t)m_pCharCodes : m_pCharCodes[index]; - pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0; - pInfo->m_OriginY = 0; - if (pInfo->m_CharCode == CPDF_Font::kInvalidCharCode) { - return; - } - CPDF_Font* pFont = m_TextState.GetFont(); - if (!pFont->IsCIDFont()) { - return; - } - if (!pFont->AsCIDFont()->IsVertWriting()) { - return; - } - uint16_t CID = pFont->AsCIDFont()->CIDFromCharCode(pInfo->m_CharCode); - pInfo->m_OriginY = pInfo->m_OriginX; - pInfo->m_OriginX = 0; - short vx, vy; - pFont->AsCIDFont()->GetVertOrigin(CID, vx, vy); - FX_FLOAT fontsize = m_TextState.GetFontSize(); - pInfo->m_OriginX -= fontsize * vx / 1000; - pInfo->m_OriginY -= fontsize * vy / 1000; -} - -int CPDF_TextObject::CountChars() const { - if (m_nChars == 1) { - return 1; - } - int count = 0; - for (int i = 0; i < m_nChars; ++i) - if (m_pCharCodes[i] != CPDF_Font::kInvalidCharCode) { - ++count; - } - return count; -} - -void CPDF_TextObject::GetCharInfo(int index, - uint32_t& charcode, - FX_FLOAT& kerning) const { - if (m_nChars == 1) { - charcode = (uint32_t)(uintptr_t)m_pCharCodes; - kerning = 0; - return; - } - int count = 0; - for (int i = 0; i < m_nChars; ++i) { - if (m_pCharCodes[i] != CPDF_Font::kInvalidCharCode) { - if (count == index) { - charcode = m_pCharCodes[i]; - if (i == m_nChars - 1 || - m_pCharCodes[i + 1] != CPDF_Font::kInvalidCharCode) { - kerning = 0; - } else { - kerning = m_pCharPos[i]; - } - return; - } - ++count; - } - } -} - -void CPDF_TextObject::GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const { - if (m_nChars == 1) { - GetItemInfo(0, pInfo); - return; - } - int count = 0; - for (int i = 0; i < m_nChars; ++i) { - uint32_t charcode = m_pCharCodes[i]; - if (charcode == CPDF_Font::kInvalidCharCode) { - continue; - } - if (count == index) { - GetItemInfo(i, pInfo); - break; - } - ++count; - } -} - -CPDF_TextObject* CPDF_TextObject::Clone() const { - CPDF_TextObject* obj = new CPDF_TextObject; - obj->CopyData(this); - - obj->m_nChars = m_nChars; - if (m_nChars > 1) { - obj->m_pCharCodes = FX_Alloc(uint32_t, m_nChars); - FXSYS_memcpy(obj->m_pCharCodes, m_pCharCodes, m_nChars * sizeof(uint32_t)); - obj->m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1); - FXSYS_memcpy(obj->m_pCharPos, m_pCharPos, - (m_nChars - 1) * sizeof(FX_FLOAT)); - } else { - obj->m_pCharCodes = m_pCharCodes; - } - obj->m_PosX = m_PosX; - obj->m_PosY = m_PosY; - return obj; -} - -CPDF_PageObject::Type CPDF_TextObject::GetType() const { - return TEXT; -} - -void CPDF_TextObject::Transform(const CFX_Matrix& matrix) { - CFX_Matrix text_matrix; - GetTextMatrix(&text_matrix); - text_matrix.Concat(matrix); - - FX_FLOAT* pTextMatrix = m_TextState.GetMutableMatrix(); - pTextMatrix[0] = text_matrix.GetA(); - pTextMatrix[1] = text_matrix.GetC(); - pTextMatrix[2] = text_matrix.GetB(); - pTextMatrix[3] = text_matrix.GetD(); - m_PosX = text_matrix.GetE(); - m_PosY = text_matrix.GetF(); - CalcPositionData(nullptr, nullptr, 0); -} - -bool CPDF_TextObject::IsText() const { - return true; -} - -CPDF_TextObject* CPDF_TextObject::AsText() { - return this; -} - -const CPDF_TextObject* CPDF_TextObject::AsText() const { - return this; -} - -void CPDF_TextObject::GetTextMatrix(CFX_Matrix* pMatrix) const { - const FX_FLOAT* pTextMatrix = m_TextState.GetMatrix(); - pMatrix->Set(pTextMatrix[0], pTextMatrix[2], pTextMatrix[1], pTextMatrix[3], - m_PosX, m_PosY); -} - -void CPDF_TextObject::SetSegments(const CFX_ByteString* pStrs, - FX_FLOAT* pKerning, - int nsegs) { - if (m_nChars > 1) { - FX_Free(m_pCharCodes); - m_pCharCodes = nullptr; - } - FX_Free(m_pCharPos); - m_pCharPos = nullptr; - CPDF_Font* pFont = m_TextState.GetFont(); - m_nChars = 0; - for (int i = 0; i < nsegs; ++i) { - m_nChars += pFont->CountChar(pStrs[i].c_str(), pStrs[i].GetLength()); - } - m_nChars += nsegs - 1; - if (m_nChars > 1) { - m_pCharCodes = FX_Alloc(uint32_t, m_nChars); - m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1); - int index = 0; - for (int i = 0; i < nsegs; ++i) { - const FX_CHAR* segment = pStrs[i].c_str(); - int len = pStrs[i].GetLength(); - int offset = 0; - while (offset < len) { - m_pCharCodes[index++] = pFont->GetNextChar(segment, len, offset); - } - if (i != nsegs - 1) { - m_pCharPos[index - 1] = pKerning[i]; - m_pCharCodes[index++] = CPDF_Font::kInvalidCharCode; - } - } - } else { - int offset = 0; - m_pCharCodes = (uint32_t*)(uintptr_t)pFont->GetNextChar( - pStrs[0].c_str(), pStrs[0].GetLength(), offset); - } -} - -void CPDF_TextObject::SetText(const CFX_ByteString& str) { - SetSegments(&str, nullptr, 1); - RecalcPositionData(); -} - -FX_FLOAT CPDF_TextObject::GetCharWidth(uint32_t charcode) const { - FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000; - CPDF_Font* pFont = m_TextState.GetFont(); - FX_BOOL bVertWriting = FALSE; - CPDF_CIDFont* pCIDFont = pFont->AsCIDFont(); - if (pCIDFont) { - bVertWriting = pCIDFont->IsVertWriting(); - } - if (!bVertWriting) - return pFont->GetCharWidthF(charcode) * fontsize; - - uint16_t CID = pCIDFont->CIDFromCharCode(charcode); - return pCIDFont->GetVertWidth(CID) * fontsize; -} - -FX_FLOAT CPDF_TextObject::GetPosX() const { - return m_PosX; -} - -FX_FLOAT CPDF_TextObject::GetPosY() const { - return m_PosY; -} - -CPDF_Font* CPDF_TextObject::GetFont() const { - return m_TextState.GetFont(); -} - -FX_FLOAT CPDF_TextObject::GetFontSize() const { - return m_TextState.GetFontSize(); -} - -void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX, - FX_FLOAT* pTextAdvanceY, - FX_FLOAT horz_scale) { - 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->AsCIDFont(); - if (pCIDFont) { - bVertWriting = pCIDFont->IsVertWriting(); - } - FX_FLOAT fontsize = m_TextState.GetFontSize(); - for (int i = 0; i < m_nChars; ++i) { - uint32_t charcode = - m_nChars == 1 ? (uint32_t)(uintptr_t)m_pCharCodes : m_pCharCodes[i]; - if (i > 0) { - if (charcode == CPDF_Font::kInvalidCharCode) { - curpos -= (m_pCharPos[i - 1] * fontsize) / 1000; - continue; - } - m_pCharPos[i - 1] = curpos; - } - FX_RECT char_rect = pFont->GetCharBBox(charcode); - 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) * fontsize / 1000; - } else { - uint16_t 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.GetWordSpace(); - } - curpos += m_TextState.GetCharSpace(); - } - 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 = curpos * horz_scale; - } - if (pTextAdvanceY) { - *pTextAdvanceY = 0; - } - min_y = min_y * fontsize / 1000; - max_y = max_y * fontsize / 1000; - } - CFX_Matrix 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); - if (TextRenderingModeIsStrokeMode(m_TextState.GetTextMode())) { - FX_FLOAT half_width = m_GraphState.GetLineWidth() / 2; - m_Left -= half_width; - m_Right += half_width; - m_Top += half_width; - m_Bottom -= half_width; - } -} - -void CPDF_TextObject::SetPosition(FX_FLOAT x, FX_FLOAT y) { - FX_FLOAT dx = x - m_PosX; - FX_FLOAT dy = y - m_PosY; - m_PosX = x; - m_PosY = y; - m_Left += dx; - m_Right += dx; - m_Top += dy; - m_Bottom += dy; -} - -void CPDF_TextObject::RecalcPositionData() { - CalcPositionData(nullptr, nullptr, 1); -} |