// 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 "fpdfsdk/fpdfxfa/cpdfxfa_page.h" #include "core/fpdfapi/page/cpdf_page.h" #include "core/fpdfapi/parser/cpdf_document.h" #include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" #include "fpdfsdk/fpdfxfa/cxfa_fwladaptertimermgr.h" #include "fpdfsdk/fsdk_define.h" #include "public/fpdf_formfill.h" #include "third_party/base/ptr_util.h" #include "xfa/fxfa/cxfa_ffdocview.h" #include "xfa/fxfa/cxfa_ffpageview.h" CPDFXFA_Page::CPDFXFA_Page(CPDFXFA_Context* pContext, int page_index) : m_pXFAPageView(nullptr), m_pContext(pContext), m_iPageIndex(page_index), m_iRef(1) {} CPDFXFA_Page::~CPDFXFA_Page() { if (m_pContext) m_pContext->RemovePage(this); } bool CPDFXFA_Page::LoadPDFPage() { if (!m_pContext) return false; CPDF_Document* pPDFDoc = m_pContext->GetPDFDoc(); if (!pPDFDoc) return false; CPDF_Dictionary* pDict = pPDFDoc->GetPage(m_iPageIndex); if (!pDict) return false; if (!m_pPDFPage || m_pPDFPage->m_pFormDict != pDict) { m_pPDFPage = pdfium::MakeUnique<CPDF_Page>(pPDFDoc, pDict, true); m_pPDFPage->ParseContent(); } return true; } bool CPDFXFA_Page::LoadXFAPageView() { if (!m_pContext) return false; CXFA_FFDoc* pXFADoc = m_pContext->GetXFADoc(); if (!pXFADoc) return false; CXFA_FFDocView* pXFADocView = m_pContext->GetXFADocView(); if (!pXFADocView) return false; CXFA_FFPageView* pPageView = pXFADocView->GetPageView(m_iPageIndex); if (!pPageView) return false; m_pXFAPageView = pPageView; return true; } bool CPDFXFA_Page::LoadPage() { if (!m_pContext || m_iPageIndex < 0) return false; switch (m_pContext->GetDocType()) { case XFA_DocType::PDF: case XFA_DocType::Static: return LoadPDFPage(); case XFA_DocType::Dynamic: return LoadXFAPageView(); default: return false; } } bool CPDFXFA_Page::LoadPDFPage(CPDF_Dictionary* pageDict) { if (!m_pContext || m_iPageIndex < 0 || !pageDict) return false; m_pPDFPage = pdfium::MakeUnique<CPDF_Page>(m_pContext->GetPDFDoc(), pageDict, true); m_pPDFPage->ParseContent(); return true; } float CPDFXFA_Page::GetPageWidth() const { if (!m_pPDFPage && !m_pXFAPageView) return 0.0f; switch (m_pContext->GetDocType()) { case XFA_DocType::Dynamic: { if (m_pXFAPageView) return m_pXFAPageView->GetPageViewRect().width; break; } case XFA_DocType::Static: case XFA_DocType::PDF: { if (m_pPDFPage) return m_pPDFPage->GetPageWidth(); break; } default: return 0.0f; } return 0.0f; } float CPDFXFA_Page::GetPageHeight() const { if (!m_pPDFPage && !m_pXFAPageView) return 0.0f; switch (m_pContext->GetDocType()) { case XFA_DocType::PDF: case XFA_DocType::Static: { if (m_pPDFPage) return m_pPDFPage->GetPageHeight(); break; } case XFA_DocType::Dynamic: { if (m_pXFAPageView) return m_pXFAPageView->GetPageViewRect().height; break; } default: return 0.0f; } return 0.0f; } void CPDFXFA_Page::DeviceToPage(int start_x, int start_y, int size_x, int size_y, int rotate, int device_x, int device_y, double* page_x, double* page_y) { if (!m_pPDFPage && !m_pXFAPageView) return; CFX_Matrix device2page; device2page.SetReverse( GetDisplayMatrix(start_x, start_y, size_x, size_y, rotate)); CFX_PointF pos = device2page.Transform( CFX_PointF(static_cast<float>(device_x), static_cast<float>(device_y))); *page_x = pos.x; *page_y = pos.y; } void CPDFXFA_Page::PageToDevice(int start_x, int start_y, int size_x, int size_y, int rotate, double page_x, double page_y, int* device_x, int* device_y) { if (!m_pPDFPage && !m_pXFAPageView) return; CFX_Matrix page2device = GetDisplayMatrix(start_x, start_y, size_x, size_y, rotate); CFX_PointF pos = page2device.Transform( CFX_PointF(static_cast<float>(page_x), static_cast<float>(page_y))); *device_x = FXSYS_round(pos.x); *device_y = FXSYS_round(pos.y); } CFX_Matrix CPDFXFA_Page::GetDisplayMatrix(int xPos, int yPos, int xSize, int ySize, int iRotate) const { if (!m_pPDFPage && !m_pXFAPageView) return CFX_Matrix(); switch (m_pContext->GetDocType()) { case XFA_DocType::Dynamic: { if (m_pXFAPageView) { return m_pXFAPageView->GetDisplayMatrix( CFX_Rect(xPos, yPos, xSize, ySize), iRotate); } break; } case XFA_DocType::PDF: case XFA_DocType::Static: { if (m_pPDFPage) return m_pPDFPage->GetDisplayMatrix(xPos, yPos, xSize, ySize, iRotate); break; } default: return CFX_Matrix(); } return CFX_Matrix(); }