Rename fpdfsdk/fpdf* files to be consistent

This CL makes the fpdfsdk/fpdf* files to be consistently prefixed with
fpdf_ instead of randomly dropping the _.

Change-Id: I23e3c8a0831b56bcd17c788d9fe874b2ab8b24fc
Reviewed-on: https://pdfium-review.googlesource.com/29390
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 427 insertions, 0 deletions

diff --git a/fpdfsdk/fpdf_editpage.cpp b/fpdfsdk/fpdf_editpage.cpp
new file mode 100644
index 0000000000..bc494f8d85
--- /dev/null
+++ b/fpdfsdk/fpdf_editpage.cpp
@@ -0,0 +1,427 @@
+// 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_edit.h"
+
+#include <algorithm>
+#include <memory>
+#include <utility>
+
+#include "core/fpdfapi/edit/cpdf_pagecontentgenerator.h"
+#include "core/fpdfapi/page/cpdf_form.h"
+#include "core/fpdfapi/page/cpdf_formobject.h"
+#include "core/fpdfapi/page/cpdf_imageobject.h"
+#include "core/fpdfapi/page/cpdf_page.h"
+#include "core/fpdfapi/page/cpdf_pageobject.h"
+#include "core/fpdfapi/page/cpdf_pathobject.h"
+#include "core/fpdfapi/page/cpdf_shadingobject.h"
+#include "core/fpdfapi/parser/cpdf_array.h"
+#include "core/fpdfapi/parser/cpdf_document.h"
+#include "core/fpdfapi/parser/cpdf_number.h"
+#include "core/fpdfapi/parser/cpdf_string.h"
+#include "core/fpdfdoc/cpdf_annot.h"
+#include "core/fpdfdoc/cpdf_annotlist.h"
+#include "fpdfsdk/cpdfsdk_helpers.h"
+#include "public/fpdf_formfill.h"
+#include "third_party/base/logging.h"
+#include "third_party/base/stl_util.h"
+
+#ifdef PDF_ENABLE_XFA
+#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
+#include "fpdfsdk/fpdfxfa/cpdfxfa_page.h"
+#endif  // PDF_ENABLE_XFA
+
+#if _FX_OS_ == _FX_OS_ANDROID_
+#include <time.h>
+#else
+#include <ctime>
+#endif
+
+namespace {
+
+static_assert(FPDF_PAGEOBJ_TEXT == CPDF_PageObject::TEXT,
+              "FPDF_PAGEOBJ_TEXT/CPDF_PageObject::TEXT mismatch");
+static_assert(FPDF_PAGEOBJ_PATH == CPDF_PageObject::PATH,
+              "FPDF_PAGEOBJ_PATH/CPDF_PageObject::PATH mismatch");
+static_assert(FPDF_PAGEOBJ_IMAGE == CPDF_PageObject::IMAGE,
+              "FPDF_PAGEOBJ_IMAGE/CPDF_PageObject::IMAGE mismatch");
+static_assert(FPDF_PAGEOBJ_SHADING == CPDF_PageObject::SHADING,
+              "FPDF_PAGEOBJ_SHADING/CPDF_PageObject::SHADING mismatch");
+static_assert(FPDF_PAGEOBJ_FORM == CPDF_PageObject::FORM,
+              "FPDF_PAGEOBJ_FORM/CPDF_PageObject::FORM mismatch");
+
+const CPDF_ContentMarkItem* CPDFContentMarkItemFromFPDFPageObjectMark(
+    FPDF_PAGEOBJECTMARK mark) {
+  return static_cast<const CPDF_ContentMarkItem*>(mark);
+}
+
+bool IsPageObject(CPDF_Page* pPage) {
+  if (!pPage || !pPage->m_pFormDict || !pPage->m_pFormDict->KeyExist("Type"))
+    return false;
+
+  CPDF_Object* pObject = pPage->m_pFormDict->GetObjectFor("Type")->GetDirect();
+  return pObject && !pObject->GetString().Compare("Page");
+}
+
+void CalcBoundingBox(CPDF_PageObject* pPageObj) {
+  switch (pPageObj->GetType()) {
+    case CPDF_PageObject::TEXT: {
+      break;
+    }
+    case CPDF_PageObject::PATH: {
+      CPDF_PathObject* pPathObj = pPageObj->AsPath();
+      pPathObj->CalcBoundingBox();
+      break;
+    }
+    case CPDF_PageObject::IMAGE: {
+      CPDF_ImageObject* pImageObj = pPageObj->AsImage();
+      pImageObj->CalcBoundingBox();
+      break;
+    }
+    case CPDF_PageObject::SHADING: {
+      CPDF_ShadingObject* pShadingObj = pPageObj->AsShading();
+      pShadingObj->CalcBoundingBox();
+      break;
+    }
+    case CPDF_PageObject::FORM: {
+      CPDF_FormObject* pFormObj = pPageObj->AsForm();
+      pFormObj->CalcBoundingBox();
+      break;
+    }
+    default: {
+      NOTREACHED();
+      break;
+    }
+  }
+}
+
+}  // namespace
+
+FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument() {
+  auto pDoc = pdfium::MakeUnique<CPDF_Document>(nullptr);
+  pDoc->CreateNewDoc();
+
+  time_t currentTime;
+  ByteString DateStr;
+  if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) {
+    if (time(&currentTime) != -1) {
+      tm* pTM = localtime(&currentTime);
+      if (pTM) {
+        DateStr = ByteString::Format(
+            "D:%04d%02d%02d%02d%02d%02d", pTM->tm_year + 1900, pTM->tm_mon + 1,
+            pTM->tm_mday, pTM->tm_hour, pTM->tm_min, pTM->tm_sec);
+      }
+    }
+  }
+
+  CPDF_Dictionary* pInfoDict = pDoc->GetInfo();
+  if (pInfoDict) {
+    if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS))
+      pInfoDict->SetNewFor<CPDF_String>("CreationDate", DateStr, false);
+    pInfoDict->SetNewFor<CPDF_String>("Creator", L"PDFium");
+  }
+
+  // Caller takes ownership of pDoc.
+  return FPDFDocumentFromCPDFDocument(pDoc.release());
+}
+
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document,
+                                               int page_index) {
+  if (UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document))
+    pDoc->DeletePage(page_index);
+}
+
+FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document,
+                                                 int page_index,
+                                                 double width,
+                                                 double height) {
+  CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
+  if (!pDoc)
+    return nullptr;
+
+  page_index = pdfium::clamp(page_index, 0, pDoc->GetPageCount());
+  CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(page_index);
+  if (!pPageDict)
+    return nullptr;
+
+  pPageDict->SetRectFor("MediaBox", CFX_FloatRect(0, 0, width, height));
+  pPageDict->SetNewFor<CPDF_Number>("Rotate", 0);
+  pPageDict->SetNewFor<CPDF_Dictionary>("Resources");
+
+#ifdef PDF_ENABLE_XFA
+  auto pXFAPage = pdfium::MakeRetain<CPDFXFA_Page>(
+      static_cast<CPDFXFA_Context*>(document), page_index);
+  pXFAPage->LoadPDFPage(pPageDict);
+  return pXFAPage.Leak();  // Caller takes ownership.
+#else  // PDF_ENABLE_XFA
+  auto pPage = pdfium::MakeUnique<CPDF_Page>(pDoc, pPageDict, true);
+  pPage->ParseContent();
+  return pPage.release();  // Caller takes ownership.
+#endif  // PDF_ENABLE_XFA
+}
+
+FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  return IsPageObject(pPage) ? pPage->GetPageRotation() : -1;
+}
+
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page,
+                                                     FPDF_PAGEOBJECT page_obj) {
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj);
+  if (!pPageObj)
+    return;
+
+  std::unique_ptr<CPDF_PageObject> pPageObjHolder(pPageObj);
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return;
+  pPageObj->SetDirty(true);
+
+  pPage->AppendPageObject(std::move(pPageObjHolder));
+  CalcBoundingBox(pPageObj);
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFPage_RemoveObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj) {
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj);
+  if (!pPageObj)
+    return false;
+
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return false;
+
+  return pPage->RemovePageObject(pPageObj);
+}
+
+FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObject(FPDF_PAGE page) {
+  return FPDFPage_CountObjects(page);
+}
+
+FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return -1;
+
+  return pPage->GetPageObjectCount();
+}
+
+FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page,
+                                                             int index) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return nullptr;
+
+  return pPage->GetPageObjectByIndex(index);
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  return pPage && pPage->BackgroundAlphaNeeded();
+}
+
+FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_obj) {
+  delete CPDFPageObjectFromFPDFPageObject(page_obj);
+}
+
+FPDF_EXPORT int FPDF_CALLCONV
+FPDFPageObj_CountMarks(FPDF_PAGEOBJECT page_object) {
+  if (!page_object)
+    return -1;
+
+  const auto& mark =
+      CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark;
+  return mark.HasRef() ? mark.CountItems() : 0;
+}
+
+FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV
+FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index) {
+  if (!page_object)
+    return nullptr;
+
+  const auto& mark =
+      CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark;
+  if (!mark.HasRef())
+    return nullptr;
+
+  if (index >= mark.CountItems())
+    return nullptr;
+
+  return static_cast<FPDF_PAGEOBJECTMARK>(&mark.GetItem(index));
+}
+
+FPDF_EXPORT unsigned long FPDF_CALLCONV
+FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark,
+                        void* buffer,
+                        unsigned long buflen) {
+  if (!mark)
+    return 0;
+
+  const CPDF_ContentMarkItem* pMarkItem =
+      CPDFContentMarkItemFromFPDFPageObjectMark(mark);
+
+  return Utf16EncodeMaybeCopyAndReturnLength(
+      WideString::FromUTF8(pMarkItem->GetName().AsStringView()), buffer,
+      buflen);
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) {
+  if (!pageObject)
+    return false;
+
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
+  int blend_type = pPageObj->m_GeneralState.GetBlendType();
+  if (blend_type != FXDIB_BLEND_NORMAL)
+    return true;
+
+  CPDF_Dictionary* pSMaskDict =
+      ToDictionary(pPageObj->m_GeneralState.GetSoftMask());
+  if (pSMaskDict)
+    return true;
+
+  if (pPageObj->m_GeneralState.GetFillAlpha() != 1.0f)
+    return true;
+
+  if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f) {
+    return true;
+  }
+
+  if (pPageObj->IsForm()) {
+    const CPDF_Form* pForm = pPageObj->AsForm()->form();
+    if (pForm) {
+      int trans = pForm->m_iTransparency;
+      if ((trans & PDFTRANS_ISOLATED) || (trans & PDFTRANS_GROUP))
+        return true;
+    }
+  }
+
+  return false;
+}
+
+FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT pageObject) {
+  if (!pageObject)
+    return FPDF_PAGEOBJ_UNKNOWN;
+
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
+  return pPageObj->GetType();
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return false;
+
+  CPDF_PageContentGenerator CG(pPage);
+  CG.GenerateContent();
+  return true;
+}
+
+FPDF_EXPORT void FPDF_CALLCONV
+FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object,
+                      double a,
+                      double b,
+                      double c,
+                      double d,
+                      double e,
+                      double f) {
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
+  if (!pPageObj)
+    return;
+
+  CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e, (float)f);
+  pPageObj->Transform(matrix);
+}
+
+FPDF_EXPORT void FPDF_CALLCONV
+FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object,
+                         FPDF_BYTESTRING blend_mode) {
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
+  if (!pPageObj)
+    return;
+
+  pPageObj->m_GeneralState.SetBlendMode(blend_mode);
+  pPageObj->SetDirty(true);
+}
+
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_TransformAnnots(FPDF_PAGE page,
+                                                        double a,
+                                                        double b,
+                                                        double c,
+                                                        double d,
+                                                        double e,
+                                                        double f) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!pPage)
+    return;
+
+  CPDF_AnnotList AnnotList(pPage);
+  for (size_t i = 0; i < AnnotList.Count(); ++i) {
+    CPDF_Annot* pAnnot = AnnotList.GetAt(i);
+    CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e,
+                      (float)f);
+    CFX_FloatRect rect = matrix.TransformRect(pAnnot->GetRect());
+
+    CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict();
+    CPDF_Array* pRectArray = pAnnotDict->GetArrayFor("Rect");
+    if (pRectArray)
+      pRectArray->Clear();
+    else
+      pRectArray = pAnnotDict->SetNewFor<CPDF_Array>("Rect");
+
+    pRectArray->AddNew<CPDF_Number>(rect.left);
+    pRectArray->AddNew<CPDF_Number>(rect.bottom);
+    pRectArray->AddNew<CPDF_Number>(rect.right);
+    pRectArray->AddNew<CPDF_Number>(rect.top);
+
+    // TODO(unknown): Transform AP's rectangle
+  }
+}
+
+FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page,
+                                                    int rotate) {
+  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
+  if (!IsPageObject(pPage))
+    return;
+
+  rotate %= 4;
+  pPage->m_pFormDict->SetNewFor<CPDF_Number>("Rotate", rotate * 90);
+}
+
+FPDF_BOOL FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object,
+                                   unsigned int R,
+                                   unsigned int G,
+                                   unsigned int B,
+                                   unsigned int A) {
+  if (!page_object || R > 255 || G > 255 || B > 255 || A > 255)
+    return false;
+
+  float rgb[3] = {R / 255.f, G / 255.f, B / 255.f};
+  auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
+  pPageObj->m_GeneralState.SetFillAlpha(A / 255.f);
+  pPageObj->m_ColorState.SetFillColor(
+      CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB), rgb, 3);
+  pPageObj->SetDirty(true);
+  return true;
+}
+
+FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
+FPDFPageObj_GetBounds(FPDF_PAGEOBJECT pageObject,
+                      float* left,
+                      float* bottom,
+                      float* right,
+                      float* top) {
+  if (!pageObject)
+    return false;
+
+  CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
+  CFX_FloatRect bbox = pPageObj->GetRect();
+  *left = bbox.left;
+  *bottom = bbox.bottom;
+  *right = bbox.right;
+  *top = bbox.top;
+  return true;
+}