| // 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 "core/fpdfapi/fpdf_page/include/cpdf_form.h" |
| #include "core/fpdfapi/fpdf_page/include/cpdf_page.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" |
| #include "core/fpdfapi/fpdf_parser/include/cpdf_reference.h" |
| #include "core/fpdfapi/fpdf_parser/ipdf_occontext.h" |
| #include "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h" |
| #include "core/fpdfapi/fpdf_render/include/cpdf_renderoptions.h" |
| #include "core/include/fpdfapi/fpdf_pageobj.h" |
| #include "core/include/fpdfdoc/fpdf_doc.h" |
| |
| CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage) |
| : m_pDocument(pPage->m_pDocument) { |
| if (!pPage->m_pFormDict) |
| return; |
| |
| CPDF_Array* pAnnots = pPage->m_pFormDict->GetArrayBy("Annots"); |
| if (!pAnnots) |
| return; |
| |
| CPDF_Dictionary* pRoot = m_pDocument->GetRoot(); |
| CPDF_Dictionary* pAcroForm = pRoot->GetDictBy("AcroForm"); |
| FX_BOOL bRegenerateAP = |
| pAcroForm && pAcroForm->GetBooleanBy("NeedAppearances"); |
| for (FX_DWORD i = 0; i < pAnnots->GetCount(); ++i) { |
| CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetElementValue(i)); |
| if (!pDict) |
| continue; |
| |
| FX_DWORD dwObjNum = pDict->GetObjNum(); |
| if (dwObjNum == 0) { |
| dwObjNum = m_pDocument->AddIndirectObject(pDict); |
| CPDF_Reference* pAction = new CPDF_Reference(m_pDocument, dwObjNum); |
| pAnnots->InsertAt(i, pAction); |
| pAnnots->RemoveAt(i + 1); |
| pDict = pAnnots->GetDictAt(i); |
| } |
| m_AnnotList.push_back(new CPDF_Annot(pDict, this)); |
| if (bRegenerateAP && pDict->GetConstStringBy("Subtype") == "Widget" && |
| CPDF_InterForm::UpdatingAPEnabled()) { |
| FPDF_GenerateAP(m_pDocument, pDict); |
| } |
| } |
| } |
| |
| CPDF_AnnotList::~CPDF_AnnotList() { |
| for (CPDF_Annot* annot : m_AnnotList) |
| delete annot; |
| } |
| |
| void CPDF_AnnotList::DisplayPass(CPDF_Page* pPage, |
| CFX_RenderDevice* pDevice, |
| CPDF_RenderContext* pContext, |
| FX_BOOL bPrinting, |
| CFX_Matrix* pMatrix, |
| FX_BOOL bWidgetPass, |
| CPDF_RenderOptions* pOptions, |
| FX_RECT* clip_rect) { |
| for (CPDF_Annot* pAnnot : m_AnnotList) { |
| bool bWidget = pAnnot->GetSubType() == "Widget"; |
| if ((bWidgetPass && !bWidget) || (!bWidgetPass && bWidget)) |
| continue; |
| |
| FX_DWORD annot_flags = pAnnot->GetFlags(); |
| if (annot_flags & ANNOTFLAG_HIDDEN) |
| continue; |
| |
| if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) |
| continue; |
| |
| if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) |
| continue; |
| |
| if (pOptions) { |
| IPDF_OCContext* pOCContext = pOptions->m_pOCContext; |
| CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict(); |
| if (pOCContext && pAnnotDict && |
| !pOCContext->CheckOCGVisible(pAnnotDict->GetDictBy("OC"))) { |
| continue; |
| } |
| } |
| CFX_FloatRect annot_rect_f; |
| pAnnot->GetRect(annot_rect_f); |
| CFX_Matrix matrix = *pMatrix; |
| if (clip_rect) { |
| annot_rect_f.Transform(&matrix); |
| FX_RECT annot_rect = annot_rect_f.GetOutterRect(); |
| annot_rect.Intersect(*clip_rect); |
| if (annot_rect.IsEmpty()) { |
| continue; |
| } |
| } |
| if (pContext) { |
| pAnnot->DrawInContext(pPage, pContext, &matrix, CPDF_Annot::Normal); |
| } else if (!pAnnot->DrawAppearance(pPage, pDevice, &matrix, |
| CPDF_Annot::Normal, pOptions)) { |
| pAnnot->DrawBorder(pDevice, &matrix, pOptions); |
| } |
| } |
| } |
| |
| void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage, |
| CFX_RenderDevice* pDevice, |
| CPDF_RenderContext* pContext, |
| FX_BOOL bPrinting, |
| CFX_Matrix* pUser2Device, |
| FX_DWORD dwAnnotFlags, |
| CPDF_RenderOptions* pOptions, |
| FX_RECT* pClipRect) { |
| if (dwAnnotFlags & 0x01) { |
| DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, FALSE, |
| pOptions, pClipRect); |
| } |
| if (dwAnnotFlags & 0x02) { |
| DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, TRUE, |
| pOptions, pClipRect); |
| } |
| } |
| |
| CPDF_Annot::CPDF_Annot(CPDF_Dictionary* pDict, CPDF_AnnotList* pList) |
| : m_pAnnotDict(pDict), |
| m_pList(pList), |
| m_sSubtype(m_pAnnotDict->GetConstStringBy("Subtype")) {} |
| CPDF_Annot::~CPDF_Annot() { |
| ClearCachedAP(); |
| } |
| void CPDF_Annot::ClearCachedAP() { |
| for (const auto& pair : m_APMap) { |
| delete pair.second; |
| } |
| m_APMap.clear(); |
| } |
| CFX_ByteString CPDF_Annot::GetSubType() const { |
| return m_sSubtype; |
| } |
| |
| void CPDF_Annot::GetRect(CFX_FloatRect& rect) const { |
| if (!m_pAnnotDict) { |
| return; |
| } |
| rect = m_pAnnotDict->GetRectBy("Rect"); |
| rect.Normalize(); |
| } |
| |
| FX_DWORD CPDF_Annot::GetFlags() const { |
| return m_pAnnotDict->GetIntegerBy("F"); |
| } |
| |
| CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict, |
| CPDF_Annot::AppearanceMode mode) { |
| CPDF_Dictionary* pAP = pAnnotDict->GetDictBy("AP"); |
| if (!pAP) { |
| return NULL; |
| } |
| const FX_CHAR* ap_entry = "N"; |
| if (mode == CPDF_Annot::Down) |
| ap_entry = "D"; |
| else if (mode == CPDF_Annot::Rollover) |
| ap_entry = "R"; |
| if (!pAP->KeyExist(ap_entry)) |
| ap_entry = "N"; |
| |
| CPDF_Object* psub = pAP->GetElementValue(ap_entry); |
| if (!psub) |
| return nullptr; |
| if (CPDF_Stream* pStream = psub->AsStream()) |
| return pStream; |
| |
| if (CPDF_Dictionary* pDict = psub->AsDictionary()) { |
| CFX_ByteString as = pAnnotDict->GetStringBy("AS"); |
| if (as.IsEmpty()) { |
| CFX_ByteString value = pAnnotDict->GetStringBy("V"); |
| if (value.IsEmpty()) { |
| CPDF_Dictionary* pDict = pAnnotDict->GetDictBy("Parent"); |
| value = pDict ? pDict->GetStringBy("V") : CFX_ByteString(); |
| } |
| if (value.IsEmpty() || !pDict->KeyExist(value)) |
| as = "Off"; |
| else |
| as = value; |
| } |
| return pDict->GetStreamBy(as); |
| } |
| return nullptr; |
| } |
| |
| CPDF_Form* CPDF_Annot::GetAPForm(const CPDF_Page* pPage, AppearanceMode mode) { |
| CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pAnnotDict, mode); |
| if (!pStream) |
| return nullptr; |
| |
| auto it = m_APMap.find(pStream); |
| if (it != m_APMap.end()) |
| return it->second; |
| |
| CPDF_Form* pNewForm = |
| new CPDF_Form(m_pList->GetDocument(), pPage->m_pResources, pStream); |
| pNewForm->ParseContent(nullptr, nullptr, nullptr, nullptr); |
| m_APMap[pStream] = pNewForm; |
| return pNewForm; |
| } |
| |
| static CPDF_Form* FPDFDOC_Annot_GetMatrix(const CPDF_Page* pPage, |
| CPDF_Annot* pAnnot, |
| CPDF_Annot::AppearanceMode mode, |
| const CFX_Matrix* pUser2Device, |
| CFX_Matrix& matrix) { |
| CPDF_Form* pForm = pAnnot->GetAPForm(pPage, mode); |
| if (!pForm) { |
| return NULL; |
| } |
| CFX_FloatRect form_bbox = pForm->m_pFormDict->GetRectBy("BBox"); |
| CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrixBy("Matrix"); |
| form_matrix.TransformRect(form_bbox); |
| CFX_FloatRect arect; |
| pAnnot->GetRect(arect); |
| matrix.MatchRect(arect, form_bbox); |
| matrix.Concat(*pUser2Device); |
| return pForm; |
| } |
| FX_BOOL CPDF_Annot::DrawAppearance(CPDF_Page* pPage, |
| CFX_RenderDevice* pDevice, |
| const CFX_Matrix* pUser2Device, |
| AppearanceMode mode, |
| const CPDF_RenderOptions* pOptions) { |
| CFX_Matrix matrix; |
| CPDF_Form* pForm = |
| FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix); |
| if (!pForm) { |
| return FALSE; |
| } |
| CPDF_RenderContext context(pPage); |
| context.AppendLayer(pForm, &matrix); |
| context.Render(pDevice, pOptions, nullptr); |
| return TRUE; |
| } |
| FX_BOOL CPDF_Annot::DrawInContext(const CPDF_Page* pPage, |
| CPDF_RenderContext* pContext, |
| const CFX_Matrix* pUser2Device, |
| AppearanceMode mode) { |
| CFX_Matrix matrix; |
| CPDF_Form* pForm = |
| FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix); |
| if (!pForm) { |
| return FALSE; |
| } |
| pContext->AppendLayer(pForm, &matrix); |
| return TRUE; |
| } |
| void CPDF_Annot::DrawBorder(CFX_RenderDevice* pDevice, |
| const CFX_Matrix* pUser2Device, |
| const CPDF_RenderOptions* pOptions) { |
| if (GetSubType() == "Popup") { |
| return; |
| } |
| FX_DWORD annot_flags = GetFlags(); |
| if (annot_flags & ANNOTFLAG_HIDDEN) { |
| return; |
| } |
| bool bPrinting = pDevice->GetDeviceClass() == FXDC_PRINTER || |
| (pOptions && (pOptions->m_Flags & RENDER_PRINTPREVIEW)); |
| if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0) { |
| return; |
| } |
| if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW)) { |
| return; |
| } |
| CPDF_Dictionary* pBS = m_pAnnotDict->GetDictBy("BS"); |
| char style_char; |
| FX_FLOAT width; |
| CPDF_Array* pDashArray = NULL; |
| if (!pBS) { |
| CPDF_Array* pBorderArray = m_pAnnotDict->GetArrayBy("Border"); |
| style_char = 'S'; |
| if (pBorderArray) { |
| width = pBorderArray->GetNumberAt(2); |
| if (pBorderArray->GetCount() == 4) { |
| pDashArray = pBorderArray->GetArrayAt(3); |
| if (!pDashArray) { |
| return; |
| } |
| int nLen = pDashArray->GetCount(); |
| int i = 0; |
| for (; i < nLen; ++i) { |
| CPDF_Object* pObj = pDashArray->GetElementValue(i); |
| if (pObj && pObj->GetInteger()) { |
| break; |
| } |
| } |
| if (i == nLen) { |
| return; |
| } |
| style_char = 'D'; |
| } |
| } else { |
| width = 1; |
| } |
| } else { |
| CFX_ByteString style = pBS->GetStringBy("S"); |
| pDashArray = pBS->GetArrayBy("D"); |
| style_char = style[1]; |
| width = pBS->GetNumberBy("W"); |
| } |
| if (width <= 0) { |
| return; |
| } |
| CPDF_Array* pColor = m_pAnnotDict->GetArrayBy("C"); |
| FX_DWORD argb = 0xff000000; |
| if (pColor) { |
| int R = (int32_t)(pColor->GetNumberAt(0) * 255); |
| int G = (int32_t)(pColor->GetNumberAt(1) * 255); |
| int B = (int32_t)(pColor->GetNumberAt(2) * 255); |
| argb = ArgbEncode(0xff, R, G, B); |
| } |
| CFX_GraphStateData graph_state; |
| graph_state.m_LineWidth = width; |
| if (style_char == 'D') { |
| if (pDashArray) { |
| FX_DWORD dash_count = pDashArray->GetCount(); |
| if (dash_count % 2) { |
| dash_count++; |
| } |
| graph_state.m_DashArray = FX_Alloc(FX_FLOAT, dash_count); |
| graph_state.m_DashCount = dash_count; |
| FX_DWORD i; |
| for (i = 0; i < pDashArray->GetCount(); ++i) { |
| graph_state.m_DashArray[i] = pDashArray->GetNumberAt(i); |
| } |
| if (i < dash_count) { |
| graph_state.m_DashArray[i] = graph_state.m_DashArray[i - 1]; |
| } |
| } else { |
| graph_state.m_DashArray = FX_Alloc(FX_FLOAT, 2); |
| graph_state.m_DashCount = 2; |
| graph_state.m_DashArray[0] = graph_state.m_DashArray[1] = 3 * 1.0f; |
| } |
| } |
| CFX_FloatRect rect; |
| GetRect(rect); |
| CFX_PathData path; |
| width /= 2; |
| path.AppendRect(rect.left + width, rect.bottom + width, rect.right - width, |
| rect.top - width); |
| int fill_type = 0; |
| if (pOptions && (pOptions->m_Flags & RENDER_NOPATHSMOOTH)) { |
| fill_type |= FXFILL_NOPATHSMOOTH; |
| } |
| pDevice->DrawPath(&path, pUser2Device, &graph_state, argb, argb, fill_type); |
| } |
