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// 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_parser/include/cpdf_array.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_name.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_number.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_reference.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
#include "core/fpdfapi/fpdf_parser/include/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(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return nullptr;
return m_Objects.GetAt(i);
}
CPDF_Object* CPDF_Array::GetElementValue(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return nullptr;
return m_Objects.GetAt(i)->GetDirect();
}
CFX_ByteString CPDF_Array::GetStringAt(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return CFX_ByteString();
return m_Objects.GetAt(i)->GetString();
}
CFX_ByteStringC CPDF_Array::GetConstStringAt(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return CFX_ByteStringC();
return m_Objects.GetAt(i)->GetConstString();
}
int CPDF_Array::GetIntegerAt(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return 0;
return m_Objects.GetAt(i)->GetInteger();
}
FX_FLOAT CPDF_Array::GetNumberAt(uint32_t i) const {
if (i >= (uint32_t)m_Objects.GetSize())
return 0;
return m_Objects.GetAt(i)->GetNumber();
}
CPDF_Dictionary* CPDF_Array::GetDictAt(uint32_t 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(uint32_t i) const {
return ToStream(GetElementValue(i));
}
CPDF_Array* CPDF_Array::GetArrayAt(uint32_t i) const {
return ToArray(GetElementValue(i));
}
void CPDF_Array::RemoveAt(uint32_t i, int nCount) {
if (i >= (uint32_t)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(uint32_t i,
CPDF_Object* pObj,
CPDF_IndirectObjectHolder* pObjs) {
ASSERT(IsArray());
ASSERT(i < (uint32_t)m_Objects.GetSize());
if (i >= (uint32_t)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(uint32_t 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,
uint32_t objnum) {
ASSERT(IsArray());
Add(new CPDF_Reference(pDoc, objnum));
}
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