| // 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/fpdfdoc/include/cpdf_annot.h" |
| |
| #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_render/include/cpdf_rendercontext.h" |
| #include "core/fpdfapi/fpdf_render/include/cpdf_renderoptions.h" |
| #include "core/fpdfdoc/cpvt_generateap.h" |
| #include "core/fxcrt/include/fx_memory.h" |
| #include "core/fxge/include/fx_ge.h" |
| |
| CPDF_Annot::CPDF_Annot(CPDF_Dictionary* pDict, CPDF_Document* pDocument) |
| : m_pAnnotDict(pDict), |
| m_pDocument(pDocument), |
| m_sSubtype(m_pAnnotDict->GetStringBy("Subtype")) { |
| if (m_sSubtype == "Highlight") |
| CPVT_GenerateAP::GenerateHighlightAP(m_pDocument, m_pAnnotDict); |
| else if (m_sSubtype == "Squiggly") |
| CPVT_GenerateAP::GenerateSquigglyAP(m_pDocument, m_pAnnotDict); |
| else if (m_sSubtype == "StrikeOut") |
| CPVT_GenerateAP::GenerateStrikeOutAP(m_pDocument, m_pAnnotDict); |
| else if (m_sSubtype == "Underline") |
| CPVT_GenerateAP::GenerateUnderlineAP(m_pDocument, m_pAnnotDict); |
| } |
| |
| CPDF_Annot::~CPDF_Annot() { |
| ClearCachedAP(); |
| } |
| |
| void CPDF_Annot::ClearCachedAP() { |
| 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(); |
| } |
| |
| uint32_t 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 nullptr; |
| } |
| 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->GetDirectObjectBy(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* pParentDict = pAnnotDict->GetDictBy("Parent"); |
| value = pParentDict ? pParentDict->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.get(); |
| |
| CPDF_Form* pNewForm = |
| new CPDF_Form(m_pDocument, pPage->m_pResources, pStream); |
| pNewForm->ParseContent(nullptr, nullptr, nullptr); |
| m_APMap[pStream] = WrapUnique(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 nullptr; |
| } |
| 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; |
| } |
| uint32_t 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 = nullptr; |
| 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; |
| } |
| size_t nLen = pDashArray->GetCount(); |
| size_t i = 0; |
| for (; i < nLen; ++i) { |
| CPDF_Object* pObj = pDashArray->GetDirectObjectAt(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"); |
| uint32_t 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) { |
| size_t 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; |
| size_t 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); |
| } |
