Move fpdfsdk/src up to fpdfsdk/.

This CL moves the files in fpdfsdk/src/ up one level to fpdfsdk/ and fixes
up the include paths, include guards and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1799773002 .

1 files changed, 327 insertions, 0 deletions

diff --git a/fpdfsdk/fpdf_transformpage.cpp b/fpdfsdk/fpdf_transformpage.cpp
new file mode 100644
index 0000000000..f3c2576dd5
--- /dev/null
+++ b/fpdfsdk/fpdf_transformpage.cpp
@@ -0,0 +1,327 @@
+// 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 "public/fpdf_transformpage.h"
+
+#include "core/include/fpdfapi/cpdf_array.h"
+#include "core/include/fpdfapi/cpdf_document.h"
+#include "core/include/fpdfapi/cpdf_number.h"
+#include "core/include/fpdfapi/cpdf_reference.h"
+#include "fpdfsdk/include/fsdk_define.h"
+
+namespace {
+
+void SetBoundingBox(CPDF_Page* page,
+                    const CFX_ByteStringC& key,
+                    float left,
+                    float bottom,
+                    float right,
+                    float top) {
+  CPDF_Dictionary* pPageDict = page->m_pFormDict;
+  CPDF_Array* pBoundingBoxArray = new CPDF_Array;
+  pBoundingBoxArray->Add(new CPDF_Number(left));
+  pBoundingBoxArray->Add(new CPDF_Number(bottom));
+  pBoundingBoxArray->Add(new CPDF_Number(right));
+  pBoundingBoxArray->Add(new CPDF_Number(top));
+  pPageDict->SetAt(key, pBoundingBoxArray);
+}
+
+FPDF_BOOL GetBoundingBox(CPDF_Page* page,
+                         const CFX_ByteStringC& key,
+                         float* left,
+                         float* bottom,
+                         float* right,
+                         float* top) {
+  CPDF_Dictionary* pPageDict = page->m_pFormDict;
+  CPDF_Array* pArray = pPageDict->GetArrayBy(key);
+  if (!pArray)
+    return FALSE;
+
+  *left = pArray->GetFloatAt(0);
+  *bottom = pArray->GetFloatAt(1);
+  *right = pArray->GetFloatAt(2);
+  *top = pArray->GetFloatAt(3);
+  return TRUE;
+}
+
+}  // namespace
+
+DLLEXPORT void STDCALL FPDFPage_SetMediaBox(FPDF_PAGE page,
+                                            float left,
+                                            float bottom,
+                                            float right,
+                                            float top) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return;
+
+  SetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
+}
+
+DLLEXPORT void STDCALL FPDFPage_SetCropBox(FPDF_PAGE page,
+                                           float left,
+                                           float bottom,
+                                           float right,
+                                           float top) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return;
+
+  SetBoundingBox(pPage, "CropBox", left, bottom, right, top);
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetMediaBox(FPDF_PAGE page,
+                                                 float* left,
+                                                 float* bottom,
+                                                 float* right,
+                                                 float* top) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  return pPage && GetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetCropBox(FPDF_PAGE page,
+                                                float* left,
+                                                float* bottom,
+                                                float* right,
+                                                float* top) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  return pPage && GetBoundingBox(pPage, "CropBox", left, bottom, right, top);
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
+                                                       FS_MATRIX* matrix,
+                                                       FS_RECTF* clipRect) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return FALSE;
+
+  CFX_ByteTextBuf textBuf;
+  textBuf << "q ";
+  CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right,
+                     clipRect->top);
+  rect.Normalize();
+  CFX_ByteString bsClipping;
+  bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom,
+                    rect.Width(), rect.Height());
+  textBuf << bsClipping;
+
+  CFX_ByteString bsMatix;
+  bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b, matrix->c,
+                 matrix->d, matrix->e, matrix->f);
+  textBuf << bsMatix;
+
+  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
+  CPDF_Object* pContentObj =
+      pPageDic ? pPageDic->GetElement("Contents") : nullptr;
+  if (!pContentObj)
+    pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
+  if (!pContentObj)
+    return FALSE;
+
+  CPDF_Dictionary* pDic = new CPDF_Dictionary;
+  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
+  pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
+  CPDF_Document* pDoc = pPage->m_pDocument;
+  if (!pDoc)
+    return FALSE;
+  pDoc->AddIndirectObject(pStream);
+
+  pDic = new CPDF_Dictionary;
+  CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic);
+  pEndStream->SetData((const uint8_t*)" Q", 2, FALSE, FALSE);
+  pDoc->AddIndirectObject(pEndStream);
+
+  CPDF_Array* pContentArray = nullptr;
+  if (CPDF_Array* pArray = ToArray(pContentObj)) {
+    pContentArray = pArray;
+    CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
+    pContentArray->InsertAt(0, pRef);
+    pContentArray->AddReference(pDoc, pEndStream);
+  } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
+    CPDF_Object* pDirectObj = pReference->GetDirect();
+    if (pDirectObj) {
+      if (CPDF_Array* pArray = pDirectObj->AsArray()) {
+        pContentArray = pArray;
+        CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
+        pContentArray->InsertAt(0, pRef);
+        pContentArray->AddReference(pDoc, pEndStream);
+      } else if (pDirectObj->IsStream()) {
+        pContentArray = new CPDF_Array();
+        pContentArray->AddReference(pDoc, pStream->GetObjNum());
+        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
+        pContentArray->AddReference(pDoc, pEndStream);
+        pPageDic->SetAtReference("Contents", pDoc,
+                                 pDoc->AddIndirectObject(pContentArray));
+      }
+    }
+  }
+
+  // Need to transform the patterns as well.
+  CPDF_Dictionary* pRes = pPageDic->GetDictBy("Resources");
+  if (pRes) {
+    CPDF_Dictionary* pPattenDict = pRes->GetDictBy("Pattern");
+    if (pPattenDict) {
+      for (const auto& it : *pPattenDict) {
+        CPDF_Object* pObj = it.second;
+        if (pObj->IsReference())
+          pObj = pObj->GetDirect();
+
+        CPDF_Dictionary* pDict = nullptr;
+        if (pObj->IsDictionary())
+          pDict = pObj->AsDictionary();
+        else if (CPDF_Stream* pStream = pObj->AsStream())
+          pDict = pStream->GetDict();
+        else
+          continue;
+
+        CFX_Matrix m = pDict->GetMatrixBy("Matrix");
+        CFX_Matrix t = *(CFX_Matrix*)matrix;
+        m.Concat(t);
+        pDict->SetAtMatrix("Matrix", m);
+      }
+    }
+  }
+
+  return TRUE;
+}
+
+DLLEXPORT void STDCALL
+FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
+                              double a,
+                              double b,
+                              double c,
+                              double d,
+                              double e,
+                              double f) {
+  CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_object;
+  if (!pPageObj)
+    return;
+  CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d,
+                    (FX_FLOAT)e, (FX_FLOAT)f);
+
+  // Special treatment to shading object, because the ClipPath for shading
+  // object is already transformed.
+  if (!pPageObj->IsShading())
+    pPageObj->TransformClipPath(matrix);
+  pPageObj->TransformGeneralState(matrix);
+}
+
+DLLEXPORT FPDF_CLIPPATH STDCALL FPDF_CreateClipPath(float left,
+                                                    float bottom,
+                                                    float right,
+                                                    float top) {
+  CPDF_ClipPath* pNewClipPath = new CPDF_ClipPath();
+  pNewClipPath->GetModify();
+  CPDF_Path Path;
+  Path.GetModify();
+  Path.AppendRect(left, bottom, right, top);
+  pNewClipPath->AppendPath(Path, FXFILL_ALTERNATE, FALSE);
+  return pNewClipPath;
+}
+
+DLLEXPORT void STDCALL FPDF_DestroyClipPath(FPDF_CLIPPATH clipPath) {
+  delete (CPDF_ClipPath*)clipPath;
+}
+
+void OutputPath(CFX_ByteTextBuf& buf, CPDF_Path path) {
+  const CFX_PathData* pPathData = path;
+  if (!pPathData)
+    return;
+
+  FX_PATHPOINT* pPoints = pPathData->GetPoints();
+
+  if (path.IsRect()) {
+    buf << (pPoints[0].m_PointX) << " " << (pPoints[0].m_PointY) << " "
+        << (pPoints[2].m_PointX - pPoints[0].m_PointX) << " "
+        << (pPoints[2].m_PointY - pPoints[0].m_PointY) << " re\n";
+    return;
+  }
+
+  CFX_ByteString temp;
+  for (int i = 0; i < pPathData->GetPointCount(); i++) {
+    buf << (pPoints[i].m_PointX) << " " << (pPoints[i].m_PointY);
+    int point_type = pPoints[i].m_Flag & FXPT_TYPE;
+    if (point_type == FXPT_MOVETO) {
+      buf << " m\n";
+    } else if (point_type == FXPT_BEZIERTO) {
+      buf << " " << (pPoints[i + 1].m_PointX) << " "
+          << (pPoints[i + 1].m_PointY) << " " << (pPoints[i + 2].m_PointX)
+          << " " << (pPoints[i + 2].m_PointY);
+      if (pPoints[i + 2].m_Flag & FXPT_CLOSEFIGURE)
+        buf << " c h\n";
+      else
+        buf << " c\n";
+      i += 2;
+    } else if (point_type == FXPT_LINETO) {
+      if (pPoints[i].m_Flag & FXPT_CLOSEFIGURE)
+        buf << " l h\n";
+      else
+        buf << " l\n";
+    }
+  }
+}
+
+DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
+                                               FPDF_CLIPPATH clipPath) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return;
+
+  CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
+  CPDF_Object* pContentObj =
+      pPageDic ? pPageDic->GetElement("Contents") : nullptr;
+  if (!pContentObj)
+    pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
+  if (!pContentObj)
+    return;
+
+  CFX_ByteTextBuf strClip;
+  CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
+  FX_DWORD i;
+  for (i = 0; i < pClipPath->GetPathCount(); i++) {
+    CPDF_Path path = pClipPath->GetPath(i);
+    int iClipType = pClipPath->GetClipType(i);
+    if (path.GetPointCount() == 0) {
+      // Empty clipping (totally clipped out)
+      strClip << "0 0 m W n ";
+    } else {
+      OutputPath(strClip, path);
+      if (iClipType == FXFILL_WINDING)
+        strClip << "W n\n";
+      else
+        strClip << "W* n\n";
+    }
+  }
+  CPDF_Dictionary* pDic = new CPDF_Dictionary;
+  CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
+  pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
+  CPDF_Document* pDoc = pPage->m_pDocument;
+  if (!pDoc)
+    return;
+  pDoc->AddIndirectObject(pStream);
+
+  CPDF_Array* pContentArray = nullptr;
+  if (CPDF_Array* pArray = ToArray(pContentObj)) {
+    pContentArray = pArray;
+    CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
+    pContentArray->InsertAt(0, pRef);
+  } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
+    CPDF_Object* pDirectObj = pReference->GetDirect();
+    if (pDirectObj) {
+      if (CPDF_Array* pArray = pDirectObj->AsArray()) {
+        pContentArray = pArray;
+        CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
+        pContentArray->InsertAt(0, pRef);
+      } else if (pDirectObj->IsStream()) {
+        pContentArray = new CPDF_Array();
+        pContentArray->AddReference(pDoc, pStream->GetObjNum());
+        pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
+        pPageDic->SetAtReference("Contents", pDoc,
+                                 pDoc->AddIndirectObject(pContentArray));
+      }
+    }
+  }
+}