// 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 "../../include/fpdfdoc/fpdf_doc.h" | |
CPDF_LinkList::~CPDF_LinkList() | |
{ | |
FX_POSITION pos = m_PageMap.GetStartPosition(); | |
while (pos) { | |
FX_LPVOID key, value; | |
m_PageMap.GetNextAssoc(pos, key, value); | |
delete (CFX_PtrArray*)value; | |
} | |
} | |
CFX_PtrArray* CPDF_LinkList::GetPageLinks(CPDF_Page* pPage) | |
{ | |
FX_DWORD objnum = pPage->m_pFormDict->GetObjNum(); | |
if (objnum == 0) { | |
return NULL; | |
} | |
CFX_PtrArray* pPageLinkList = NULL; | |
if (!m_PageMap.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, (FX_LPVOID&)pPageLinkList)) { | |
pPageLinkList = FX_NEW CFX_PtrArray; | |
if (pPageLinkList == NULL) { | |
return NULL; | |
} | |
m_PageMap.SetAt((FX_LPVOID)(FX_UINTPTR)objnum, pPageLinkList); | |
LoadPageLinks(pPage, pPageLinkList); | |
} | |
return pPageLinkList; | |
} | |
int CPDF_LinkList::CountLinks(CPDF_Page* pPage) | |
{ | |
CFX_PtrArray* pPageLinkList = GetPageLinks(pPage); | |
if (pPageLinkList == NULL) { | |
return 0; | |
} | |
return pPageLinkList->GetSize(); | |
} | |
CPDF_Link CPDF_LinkList::GetLink(CPDF_Page* pPage, int index) | |
{ | |
CFX_PtrArray* pPageLinkList = GetPageLinks(pPage); | |
if (pPageLinkList == NULL) { | |
return NULL; | |
} | |
return (CPDF_Dictionary*)pPageLinkList->GetAt(index); | |
} | |
CPDF_Link CPDF_LinkList::GetLinkAtPoint(CPDF_Page* pPage, FX_FLOAT pdf_x, FX_FLOAT pdf_y) | |
{ | |
CFX_PtrArray* pPageLinkList = GetPageLinks(pPage); | |
if (pPageLinkList == NULL) { | |
return NULL; | |
} | |
int size = pPageLinkList->GetSize(); | |
for (int i = 0; i < size; i ++) { | |
CPDF_Link Link = (CPDF_Dictionary*)pPageLinkList->GetAt(i); | |
CPDF_Rect rect = Link.GetRect(); | |
if (rect.Contains(pdf_x, pdf_y)) { | |
return Link; | |
} | |
} | |
return NULL; | |
} | |
void CPDF_LinkList::LoadPageLinks(CPDF_Page* pPage, CFX_PtrArray* pList) | |
{ | |
CPDF_Array* pAnnotList = pPage->m_pFormDict->GetArray("Annots"); | |
if (pAnnotList == NULL) { | |
return; | |
} | |
for (FX_DWORD i = 0; i < pAnnotList->GetCount(); i ++) { | |
CPDF_Dictionary* pAnnot = pAnnotList->GetDict(i); | |
if (pAnnot == NULL) { | |
continue; | |
} | |
if (pAnnot->GetString("Subtype") != "Link") { | |
continue; | |
} | |
pList->Add(pAnnot); | |
} | |
} | |
CPDF_Rect CPDF_Link::GetRect() | |
{ | |
return m_pDict->GetRect("Rect"); | |
} | |
CPDF_Dest CPDF_Link::GetDest(CPDF_Document* pDoc) | |
{ | |
CPDF_Object* pDest = m_pDict->GetElementValue("Dest"); | |
if (pDest == NULL) { | |
return NULL; | |
} | |
if (pDest->GetType() == PDFOBJ_STRING || pDest->GetType() == PDFOBJ_NAME) { | |
CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests")); | |
CFX_ByteStringC name = pDest->GetString(); | |
return name_tree.LookupNamedDest(pDoc, name); | |
} else if (pDest->GetType() == PDFOBJ_ARRAY) { | |
return (CPDF_Array*)pDest; | |
} | |
return NULL; | |
} | |
CPDF_Action CPDF_Link::GetAction() | |
{ | |
return m_pDict->GetDict("A"); | |
} |