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Unified Diff: core/fpdfapi/fpdf_page/cpdf_textobject.cpp

Issue 2386423004: Move core/fpdfapi/fpdf_page to core/fpdfapi/page (Closed)
Patch Set: Rebase to master Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_page/cpdf_textobject.cpp
diff --git a/core/fpdfapi/fpdf_page/cpdf_textobject.cpp b/core/fpdfapi/fpdf_page/cpdf_textobject.cpp
deleted file mode 100644
index 97f6ad2bcdc04d496926858dff8a2115d4a08d4b..0000000000000000000000000000000000000000
--- 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);
-}
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