Split fpdf_parser_objects.cpp into per-class .cpp/.h files.

core/src/fpdfapi/fpdf_parser/cpdf_array.cpp

+// Copyright 2014 PDFium Authors. All rights reserved.

[dsinclair, 2016/03/10 21:23:44]

2016

+// 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/include/fpdfapi/cpdf_array.h"
+
+#include "core/include/fpdfapi/cpdf_name.h"
+#include "core/include/fpdfapi/cpdf_number.h"
+#include "core/include/fpdfapi/cpdf_reference.h"
+#include "core/include/fpdfapi/cpdf_stream.h"
+#include "core/include/fpdfapi/cpdf_string.h"
+
+CPDF_Array::CPDF_Array() {}
+
+CPDF_Array::~CPDF_Array() {
+  int size = m_Objects.GetSize();
+  CPDF_Object** pList = m_Objects.GetData();
+  for (int i = 0; i < size; i++) {
+    if (pList[i])
+      pList[i]->Release();
+  }
+}
+
+CPDF_Object::Type CPDF_Array::GetType() const {
+  return ARRAY;
+}
+
+CPDF_Array* CPDF_Array::GetArray() const {
+  // The method should be made non-const if we want to not be const.
+  // See bug #234.
+  return const_cast<CPDF_Array*>(this);
+}
+
+bool CPDF_Array::IsArray() const {
+  return true;
+}
+
+CPDF_Array* CPDF_Array::AsArray() {
+  return this;
+}
+
+const CPDF_Array* CPDF_Array::AsArray() const {
+  return this;
+}
+
+CPDF_Object* CPDF_Array::Clone(FX_BOOL bDirect) const {
+  CPDF_Array* pCopy = new CPDF_Array();
+  for (int i = 0; i < GetCount(); i++) {
+    CPDF_Object* value = m_Objects.GetAt(i);
+    pCopy->m_Objects.Add(value->Clone(bDirect));
+  }
+  return pCopy;
+}
+
+CFX_FloatRect CPDF_Array::GetRect() {
+  CFX_FloatRect rect;
+  if (!IsArray() || m_Objects.GetSize() != 4)
+    return rect;
+
+  rect.left = GetNumberAt(0);
+  rect.bottom = GetNumberAt(1);
+  rect.right = GetNumberAt(2);
+  rect.top = GetNumberAt(3);
+  return rect;
+}
+
+CFX_Matrix CPDF_Array::GetMatrix() {
+  CFX_Matrix matrix;
+  if (!IsArray() || m_Objects.GetSize() != 6)
+    return matrix;
+
+  matrix.Set(GetNumberAt(0), GetNumberAt(1), GetNumberAt(2), GetNumberAt(3),
+             GetNumberAt(4), GetNumberAt(5));
+  return matrix;
+}
+
+CPDF_Object* CPDF_Array::GetElement(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return nullptr;
+  return m_Objects.GetAt(i);
+}
+
+CPDF_Object* CPDF_Array::GetElementValue(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return nullptr;
+  return m_Objects.GetAt(i)->GetDirect();
+}
+
+CFX_ByteString CPDF_Array::GetStringAt(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return CFX_ByteString();
+  return m_Objects.GetAt(i)->GetString();
+}
+
+CFX_ByteStringC CPDF_Array::GetConstStringAt(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return CFX_ByteStringC();
+  return m_Objects.GetAt(i)->GetConstString();
+}
+
+int CPDF_Array::GetIntegerAt(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return 0;
+  return m_Objects.GetAt(i)->GetInteger();
+}
+
+FX_FLOAT CPDF_Array::GetNumberAt(FX_DWORD i) const {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return 0;
+  return m_Objects.GetAt(i)->GetNumber();
+}
+
+CPDF_Dictionary* CPDF_Array::GetDictAt(FX_DWORD i) const {
+  CPDF_Object* p = GetElementValue(i);
+  if (!p)
+    return NULL;
+  if (CPDF_Dictionary* pDict = p->AsDictionary())
+    return pDict;
+  if (CPDF_Stream* pStream = p->AsStream())
+    return pStream->GetDict();
+  return NULL;
+}
+
+CPDF_Stream* CPDF_Array::GetStreamAt(FX_DWORD i) const {
+  return ToStream(GetElementValue(i));
+}
+
+CPDF_Array* CPDF_Array::GetArrayAt(FX_DWORD i) const {
+  return ToArray(GetElementValue(i));
+}
+
+void CPDF_Array::RemoveAt(FX_DWORD i, int nCount) {
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return;
+
+  if (nCount <= 0 || nCount > m_Objects.GetSize() - i)
+    return;
+
+  for (int j = 0; j < nCount; ++j) {
+    if (CPDF_Object* p = m_Objects.GetAt(i + j))
+      p->Release();
+  }
+  m_Objects.RemoveAt(i, nCount);
+}
+
+void CPDF_Array::SetAt(FX_DWORD i,
+                       CPDF_Object* pObj,
+                       CPDF_IndirectObjectHolder* pObjs) {
+  ASSERT(IsArray());
+  ASSERT(i < (FX_DWORD)m_Objects.GetSize());
+  if (i >= (FX_DWORD)m_Objects.GetSize())
+    return;
+  if (CPDF_Object* pOld = m_Objects.GetAt(i))
+    pOld->Release();
+  if (pObj->GetObjNum()) {
+    ASSERT(pObjs);
+    pObj = new CPDF_Reference(pObjs, pObj->GetObjNum());
+  }
+  m_Objects.SetAt(i, pObj);
+}
+
+void CPDF_Array::InsertAt(FX_DWORD index,
+                          CPDF_Object* pObj,
+                          CPDF_IndirectObjectHolder* pObjs) {
+  if (pObj->GetObjNum()) {
+    ASSERT(pObjs);
+    pObj = new CPDF_Reference(pObjs, pObj->GetObjNum());
+  }
+  m_Objects.InsertAt(index, pObj);
+}
+
+void CPDF_Array::Add(CPDF_Object* pObj, CPDF_IndirectObjectHolder* pObjs) {
+  if (pObj->GetObjNum()) {
+    ASSERT(pObjs);
+    pObj = new CPDF_Reference(pObjs, pObj->GetObjNum());
+  }
+  m_Objects.Add(pObj);
+}
+
+void CPDF_Array::AddName(const CFX_ByteString& str) {
+  ASSERT(IsArray());
+  Add(new CPDF_Name(str));
+}
+
+void CPDF_Array::AddString(const CFX_ByteString& str) {
+  ASSERT(IsArray());
+  Add(new CPDF_String(str, FALSE));
+}
+
+void CPDF_Array::AddInteger(int i) {
+  ASSERT(IsArray());
+  Add(new CPDF_Number(i));
+}
+
+void CPDF_Array::AddNumber(FX_FLOAT f) {
+  ASSERT(IsArray());
+  CPDF_Number* pNumber = new CPDF_Number(f);
+  Add(pNumber);
+}
+
+void CPDF_Array::AddReference(CPDF_IndirectObjectHolder* pDoc,
+                              FX_DWORD objnum) {
+  ASSERT(IsArray());
+  Add(new CPDF_Reference(pDoc, objnum));
+}