From 584b1e679f41a580e2b38d5534f126355c78043b Mon Sep 17 00:00:00 2001 From: Dan Sinclair Date: Mon, 21 Mar 2016 09:15:45 -0400 Subject: Move core/include/fpdfapi/fpdf_pageobj.h into core/fpdfapi. This CL splits the file into individual classes and moves them into core/fpdfapi/fpdf_page as needed. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1811053002 . --- core/fpdfapi/fpdf_page/fpdf_page.cpp | 636 ----------------------------------- 1 file changed, 636 deletions(-) delete mode 100644 core/fpdfapi/fpdf_page/fpdf_page.cpp (limited to 'core/fpdfapi/fpdf_page/fpdf_page.cpp') diff --git a/core/fpdfapi/fpdf_page/fpdf_page.cpp b/core/fpdfapi/fpdf_page/fpdf_page.cpp deleted file mode 100644 index ad54e320bc..0000000000 --- a/core/fpdfapi/fpdf_page/fpdf_page.cpp +++ /dev/null @@ -1,636 +0,0 @@ -// 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 "core/fpdfapi/fpdf_page/pageint.h" - -#include - -#include "core/fpdfapi/fpdf_page/include/cpdf_form.h" -#include "core/fpdfapi/fpdf_page/include/cpdf_page.h" -#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" -#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" -#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" -#include "core/fpdfapi/include/cpdf_modulemgr.h" -#include "core/fpdfapi/ipdf_rendermodule.h" -#include "third_party/base/stl_util.h" - -CPDF_PageObject::CPDF_PageObject() {} - -CPDF_PageObject::~CPDF_PageObject() {} - -void CPDF_PageObject::CopyData(const CPDF_PageObject* pSrc) { - CopyStates(*pSrc); - m_Left = pSrc->m_Left; - m_Right = pSrc->m_Right; - m_Top = pSrc->m_Top; - m_Bottom = pSrc->m_Bottom; -} - -void CPDF_PageObject::TransformClipPath(CFX_Matrix& matrix) { - if (m_ClipPath.IsNull()) { - return; - } - m_ClipPath.GetModify(); - m_ClipPath.Transform(matrix); -} - -void CPDF_PageObject::TransformGeneralState(CFX_Matrix& matrix) { - if (m_GeneralState.IsNull()) { - return; - } - CPDF_GeneralStateData* pGS = m_GeneralState.GetModify(); - pGS->m_Matrix.Concat(matrix); -} - -FX_RECT CPDF_PageObject::GetBBox(const CFX_Matrix* pMatrix) const { - CFX_FloatRect rect(m_Left, m_Bottom, m_Right, m_Top); - if (pMatrix) { - pMatrix->TransformRect(rect); - } - return rect.GetOutterRect(); -} - -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); -} - -void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const { - pInfo->m_CharCode = - m_nChars == 1 ? (FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[index]; - pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0; - pInfo->m_OriginY = 0; - if (pInfo->m_CharCode == -1) { - return; - } - CPDF_Font* pFont = m_TextState.GetFont(); - if (!pFont->IsCIDFont()) { - return; - } - if (!pFont->AsCIDFont()->IsVertWriting()) { - return; - } - FX_WORD 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] != (FX_DWORD)-1) { - ++count; - } - return count; -} - -void CPDF_TextObject::GetCharInfo(int index, - FX_DWORD& charcode, - FX_FLOAT& kerning) const { - if (m_nChars == 1) { - charcode = (FX_DWORD)(uintptr_t)m_pCharCodes; - kerning = 0; - return; - } - int count = 0; - for (int i = 0; i < m_nChars; ++i) { - if (m_pCharCodes[i] != (FX_DWORD)-1) { - if (count == index) { - charcode = m_pCharCodes[i]; - if (i == m_nChars - 1 || m_pCharCodes[i + 1] != (FX_DWORD)-1) { - 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) { - FX_DWORD charcode = m_pCharCodes[i]; - if (charcode == (FX_DWORD)-1) { - 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(FX_DWORD, m_nChars); - FXSYS_memcpy(obj->m_pCharCodes, m_pCharCodes, m_nChars * sizeof(FX_DWORD)); - 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; -} - -void CPDF_TextObject::GetTextMatrix(CFX_Matrix* pMatrix) 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], pStrs[i].GetLength()); - } - m_nChars += nsegs - 1; - if (m_nChars > 1) { - m_pCharCodes = FX_Alloc(FX_DWORD, 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]; - int offset = 0, len = pStrs[i].GetLength(); - while (offset < len) { - m_pCharCodes[index++] = pFont->GetNextChar(segment, len, offset); - } - if (i != nsegs - 1) { - m_pCharPos[index - 1] = pKerning[i]; - m_pCharCodes[index++] = (FX_DWORD)-1; - } - } - } else { - int offset = 0; - m_pCharCodes = (FX_DWORD*)(uintptr_t)pFont->GetNextChar( - pStrs[0], pStrs[0].GetLength(), offset); - } -} - -void CPDF_TextObject::SetText(const CFX_ByteString& str) { - SetSegments(&str, nullptr, 1); - RecalcPositionData(); -} - -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->AsCIDFont(); - if (pCIDFont) { - bVertWriting = pCIDFont->IsVertWriting(); - } - if (!bVertWriting) - return pFont->GetCharWidthF(charcode, 0) * fontsize; - - FX_WORD CID = pCIDFont->CIDFromCharCode(charcode); - return pCIDFont->GetVertWidth(CID) * fontsize; -} - -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->AsCIDFont(); - 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 (i > 0) { - if (charcode == (FX_DWORD)-1) { - curpos -= (m_pCharPos[i - 1] * fontsize) / 1000; - continue; - } - m_pCharPos[i - 1] = curpos; - } - FX_RECT char_rect = pFont->GetCharBBox(charcode, 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 = 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); - 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; - } -} - -void CPDF_TextObject::Transform(const CFX_Matrix& matrix) { - m_TextState.GetModify(); - CFX_Matrix text_matrix; - GetTextMatrix(&text_matrix); - text_matrix.Concat(matrix); - FX_FLOAT* pTextMatrix = m_TextState.GetMatrix(); - 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); -} - -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; -} - -CPDF_ShadingObject::CPDF_ShadingObject() : m_pShading(nullptr) {} - -CPDF_ShadingObject::~CPDF_ShadingObject() {} - -CPDF_ShadingObject* CPDF_ShadingObject::Clone() const { - CPDF_ShadingObject* obj = new CPDF_ShadingObject; - obj->CopyData(this); - - obj->m_pShading = m_pShading; - if (obj->m_pShading && obj->m_pShading->m_pDocument) { - CPDF_DocPageData* pDocPageData = - obj->m_pShading->m_pDocument->GetPageData(); - obj->m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern( - obj->m_pShading->m_pShadingObj, m_pShading->m_bShadingObj, - &obj->m_pShading->m_ParentMatrix); - } - obj->m_Matrix = m_Matrix; - return obj; -} - -void CPDF_ShadingObject::Transform(const CFX_Matrix& matrix) { - if (!m_ClipPath.IsNull()) { - m_ClipPath.GetModify(); - m_ClipPath.Transform(matrix); - } - m_Matrix.Concat(matrix); - if (!m_ClipPath.IsNull()) { - CalcBoundingBox(); - } else { - matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom); - } -} - -void CPDF_ShadingObject::CalcBoundingBox() { - if (m_ClipPath.IsNull()) { - return; - } - CFX_FloatRect rect = m_ClipPath.GetClipBox(); - m_Left = rect.left; - m_Bottom = rect.bottom; - m_Right = rect.right; - m_Top = rect.top; -} - -CPDF_FormObject::CPDF_FormObject() : m_pForm(nullptr) {} - -CPDF_FormObject::~CPDF_FormObject() { - delete m_pForm; -} - -void CPDF_FormObject::Transform(const CFX_Matrix& matrix) { - m_FormMatrix.Concat(matrix); - CalcBoundingBox(); -} - -CPDF_FormObject* CPDF_FormObject::Clone() const { - CPDF_FormObject* obj = new CPDF_FormObject; - obj->CopyData(this); - - obj->m_pForm = m_pForm->Clone(); - obj->m_FormMatrix = m_FormMatrix; - return obj; -} - -void CPDF_FormObject::CalcBoundingBox() { - CFX_FloatRect form_rect = m_pForm->CalcBoundingBox(); - form_rect.Transform(&m_FormMatrix); - m_Left = form_rect.left; - m_Bottom = form_rect.bottom; - m_Right = form_rect.right; - m_Top = form_rect.top; -} - -CPDF_Page::CPDF_Page() : m_pPageRender(nullptr) {} - -void CPDF_Page::Load(CPDF_Document* pDocument, - CPDF_Dictionary* pPageDict, - FX_BOOL bPageCache) { - m_pDocument = (CPDF_Document*)pDocument; - m_pFormDict = pPageDict; - if (bPageCache) { - m_pPageRender = - CPDF_ModuleMgr::Get()->GetRenderModule()->CreatePageCache(this); - } - if (!pPageDict) { - m_PageWidth = m_PageHeight = 100 * 1.0f; - m_pPageResources = m_pResources = NULL; - return; - } - CPDF_Object* pageAttr = GetPageAttr("Resources"); - m_pResources = pageAttr ? pageAttr->GetDict() : NULL; - m_pPageResources = m_pResources; - CPDF_Object* pRotate = GetPageAttr("Rotate"); - int rotate = 0; - if (pRotate) { - rotate = pRotate->GetInteger() / 90 % 4; - } - if (rotate < 0) { - rotate += 4; - } - CPDF_Array* pMediaBox = ToArray(GetPageAttr("MediaBox")); - CFX_FloatRect mediabox; - if (pMediaBox) { - mediabox = pMediaBox->GetRect(); - mediabox.Normalize(); - } - if (mediabox.IsEmpty()) { - mediabox = CFX_FloatRect(0, 0, 612, 792); - } - - CPDF_Array* pCropBox = ToArray(GetPageAttr("CropBox")); - if (pCropBox) { - m_BBox = pCropBox->GetRect(); - m_BBox.Normalize(); - } - if (m_BBox.IsEmpty()) { - m_BBox = mediabox; - } else { - m_BBox.Intersect(mediabox); - } - if (rotate % 2) { - m_PageHeight = m_BBox.right - m_BBox.left; - m_PageWidth = m_BBox.top - m_BBox.bottom; - } else { - m_PageWidth = m_BBox.right - m_BBox.left; - m_PageHeight = m_BBox.top - m_BBox.bottom; - } - switch (rotate) { - case 0: - m_PageMatrix.Set(1.0f, 0, 0, 1.0f, -m_BBox.left, -m_BBox.bottom); - break; - case 1: - m_PageMatrix.Set(0, -1.0f, 1.0f, 0, -m_BBox.bottom, m_BBox.right); - break; - case 2: - m_PageMatrix.Set(-1.0f, 0, 0, -1.0f, m_BBox.right, m_BBox.top); - break; - case 3: - m_PageMatrix.Set(0, 1.0f, -1.0f, 0, m_BBox.top, -m_BBox.left); - break; - } - m_Transparency = PDFTRANS_ISOLATED; - LoadTransInfo(); -} - -void CPDF_Page::StartParse(CPDF_ParseOptions* pOptions) { - if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING) { - return; - } - m_pParser.reset(new CPDF_ContentParser); - m_pParser->Start(this, pOptions); - m_ParseState = CONTENT_PARSING; -} - -void CPDF_Page::ParseContent(CPDF_ParseOptions* pOptions) { - StartParse(pOptions); - ContinueParse(nullptr); -} - -CPDF_Page::~CPDF_Page() { - if (m_pPageRender) { - IPDF_RenderModule* pModule = CPDF_ModuleMgr::Get()->GetRenderModule(); - pModule->DestroyPageCache(m_pPageRender); - } -} - -CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, - const CFX_ByteStringC& name) { - int level = 0; - while (1) { - CPDF_Object* pObj = pPageDict->GetElementValue(name); - if (pObj) { - return pObj; - } - CPDF_Dictionary* pParent = pPageDict->GetDictBy("Parent"); - if (!pParent || pParent == pPageDict) { - return NULL; - } - pPageDict = pParent; - level++; - if (level == 1000) { - return NULL; - } - } -} - -CPDF_Object* CPDF_Page::GetPageAttr(const CFX_ByteStringC& name) const { - return FPDFAPI_GetPageAttr(m_pFormDict, name); -} - -void CPDF_Page::GetDisplayMatrix(CFX_Matrix& matrix, - int xPos, - int yPos, - int xSize, - int ySize, - int iRotate) const { - if (m_PageWidth == 0 || m_PageHeight == 0) { - return; - } - CFX_Matrix display_matrix; - int x0, y0, x1, y1, x2, y2; - iRotate %= 4; - switch (iRotate) { - case 0: - x0 = xPos; - y0 = yPos + ySize; - x1 = xPos; - y1 = yPos; - x2 = xPos + xSize; - y2 = yPos + ySize; - break; - case 1: - x0 = xPos; - y0 = yPos; - x1 = xPos + xSize; - y1 = yPos; - x2 = xPos; - y2 = yPos + ySize; - break; - case 2: - x0 = xPos + xSize; - y0 = yPos; - x1 = xPos + xSize; - y1 = yPos + ySize; - x2 = xPos; - y2 = yPos; - break; - case 3: - x0 = xPos + xSize; - y0 = yPos + ySize; - x1 = xPos; - y1 = yPos + ySize; - x2 = xPos + xSize; - y2 = yPos; - break; - } - display_matrix.Set( - ((FX_FLOAT)(x2 - x0)) / m_PageWidth, ((FX_FLOAT)(y2 - y0)) / m_PageWidth, - ((FX_FLOAT)(x1 - x0)) / m_PageHeight, - ((FX_FLOAT)(y1 - y0)) / m_PageHeight, (FX_FLOAT)x0, (FX_FLOAT)y0); - matrix = m_PageMatrix; - matrix.Concat(display_matrix); -} -- cgit v1.2.3