| // Copyright 2017 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. |
| |
| #include "public/fpdf_annot.h" |
| |
| #include <memory> |
| #include <utility> |
| |
| #include "constants/annotation_common.h" |
| #include "core/fpdfapi/edit/cpdf_pagecontentgenerator.h" |
| #include "core/fpdfapi/page/cpdf_annotcontext.h" |
| #include "core/fpdfapi/page/cpdf_form.h" |
| #include "core/fpdfapi/page/cpdf_page.h" |
| #include "core/fpdfapi/page/cpdf_pageobject.h" |
| #include "core/fpdfapi/parser/cpdf_array.h" |
| #include "core/fpdfapi/parser/cpdf_dictionary.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fpdfapi/parser/cpdf_name.h" |
| #include "core/fpdfapi/parser/cpdf_number.h" |
| #include "core/fpdfapi/parser/cpdf_reference.h" |
| #include "core/fpdfapi/parser/cpdf_stream.h" |
| #include "core/fpdfapi/parser/cpdf_string.h" |
| #include "core/fpdfdoc/cpdf_annot.h" |
| #include "core/fpdfdoc/cpdf_color_utils.h" |
| #include "core/fpdfdoc/cpdf_formfield.h" |
| #include "core/fpdfdoc/cpdf_interactiveform.h" |
| #include "core/fpdfdoc/cpvt_generateap.h" |
| #include "core/fxge/cfx_color.h" |
| #include "fpdfsdk/cpdfsdk_helpers.h" |
| #include "fpdfsdk/cpdfsdk_interactiveform.h" |
| #include "third_party/base/ptr_util.h" |
| #include "third_party/base/stl_util.h" |
| |
| namespace { |
| |
| // These checks ensure the consistency of annotation subtype values across core/ |
| // and public. |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::UNKNOWN) == |
| FPDF_ANNOT_UNKNOWN, |
| "CPDF_Annot::UNKNOWN value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::TEXT) == FPDF_ANNOT_TEXT, |
| "CPDF_Annot::TEXT value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::LINK) == FPDF_ANNOT_LINK, |
| "CPDF_Annot::LINK value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::FREETEXT) == |
| FPDF_ANNOT_FREETEXT, |
| "CPDF_Annot::FREETEXT value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::LINE) == FPDF_ANNOT_LINE, |
| "CPDF_Annot::LINE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::SQUARE) == |
| FPDF_ANNOT_SQUARE, |
| "CPDF_Annot::SQUARE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::CIRCLE) == |
| FPDF_ANNOT_CIRCLE, |
| "CPDF_Annot::CIRCLE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::POLYGON) == |
| FPDF_ANNOT_POLYGON, |
| "CPDF_Annot::POLYGON value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::POLYLINE) == |
| FPDF_ANNOT_POLYLINE, |
| "CPDF_Annot::POLYLINE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::HIGHLIGHT) == |
| FPDF_ANNOT_HIGHLIGHT, |
| "CPDF_Annot::HIGHLIGHT value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::UNDERLINE) == |
| FPDF_ANNOT_UNDERLINE, |
| "CPDF_Annot::UNDERLINE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::SQUIGGLY) == |
| FPDF_ANNOT_SQUIGGLY, |
| "CPDF_Annot::SQUIGGLY value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::STRIKEOUT) == |
| FPDF_ANNOT_STRIKEOUT, |
| "CPDF_Annot::STRIKEOUT value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::STAMP) == FPDF_ANNOT_STAMP, |
| "CPDF_Annot::STAMP value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::CARET) == FPDF_ANNOT_CARET, |
| "CPDF_Annot::CARET value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::INK) == FPDF_ANNOT_INK, |
| "CPDF_Annot::INK value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::POPUP) == FPDF_ANNOT_POPUP, |
| "CPDF_Annot::POPUP value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::FILEATTACHMENT) == |
| FPDF_ANNOT_FILEATTACHMENT, |
| "CPDF_Annot::FILEATTACHMENT value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::SOUND) == FPDF_ANNOT_SOUND, |
| "CPDF_Annot::SOUND value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::MOVIE) == FPDF_ANNOT_MOVIE, |
| "CPDF_Annot::MOVIE value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::WIDGET) == |
| FPDF_ANNOT_WIDGET, |
| "CPDF_Annot::WIDGET value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::SCREEN) == |
| FPDF_ANNOT_SCREEN, |
| "CPDF_Annot::SCREEN value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::PRINTERMARK) == |
| FPDF_ANNOT_PRINTERMARK, |
| "CPDF_Annot::PRINTERMARK value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::TRAPNET) == |
| FPDF_ANNOT_TRAPNET, |
| "CPDF_Annot::TRAPNET value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::WATERMARK) == |
| FPDF_ANNOT_WATERMARK, |
| "CPDF_Annot::WATERMARK value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::THREED) == |
| FPDF_ANNOT_THREED, |
| "CPDF_Annot::THREED value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::RICHMEDIA) == |
| FPDF_ANNOT_RICHMEDIA, |
| "CPDF_Annot::RICHMEDIA value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::Subtype::XFAWIDGET) == |
| FPDF_ANNOT_XFAWIDGET, |
| "CPDF_Annot::XFAWIDGET value mismatch"); |
| |
| // These checks ensure the consistency of annotation appearance mode values |
| // across core/ and public. |
| static_assert(static_cast<int>(CPDF_Annot::AppearanceMode::Normal) == |
| FPDF_ANNOT_APPEARANCEMODE_NORMAL, |
| "CPDF_Annot::AppearanceMode::Normal value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::AppearanceMode::Rollover) == |
| FPDF_ANNOT_APPEARANCEMODE_ROLLOVER, |
| "CPDF_Annot::AppearanceMode::Rollover value mismatch"); |
| static_assert(static_cast<int>(CPDF_Annot::AppearanceMode::Down) == |
| FPDF_ANNOT_APPEARANCEMODE_DOWN, |
| "CPDF_Annot::AppearanceMode::Down value mismatch"); |
| |
| // These checks ensure the consistency of dictionary value types across core/ |
| // and public/. |
| static_assert(static_cast<int>(CPDF_Object::Type::kBoolean) == |
| FPDF_OBJECT_BOOLEAN, |
| "CPDF_Object::kBoolean value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kNumber) == |
| FPDF_OBJECT_NUMBER, |
| "CPDF_Object::kNumber value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kString) == |
| FPDF_OBJECT_STRING, |
| "CPDF_Object::kString value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kName) == FPDF_OBJECT_NAME, |
| "CPDF_Object::kName value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kArray) == FPDF_OBJECT_ARRAY, |
| "CPDF_Object::kArray value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kDictionary) == |
| FPDF_OBJECT_DICTIONARY, |
| "CPDF_Object::kDictionary value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kStream) == |
| FPDF_OBJECT_STREAM, |
| "CPDF_Object::kStream value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kNullobj) == |
| FPDF_OBJECT_NULLOBJ, |
| "CPDF_Object::kNullobj value mismatch"); |
| static_assert(static_cast<int>(CPDF_Object::Type::kReference) == |
| FPDF_OBJECT_REFERENCE, |
| "CPDF_Object::kReference value mismatch"); |
| |
| bool HasAPStream(CPDF_Dictionary* pAnnotDict) { |
| return !!GetAnnotAP(pAnnotDict, CPDF_Annot::AppearanceMode::Normal); |
| } |
| |
| void UpdateContentStream(CPDF_Form* pForm, CPDF_Stream* pStream) { |
| ASSERT(pForm); |
| ASSERT(pStream); |
| |
| CPDF_PageContentGenerator generator(pForm); |
| std::ostringstream buf; |
| generator.ProcessPageObjects(&buf); |
| pStream->SetDataFromStringstreamAndRemoveFilter(&buf); |
| } |
| |
| void SetQuadPointsAtIndex(CPDF_Array* array, |
| size_t quad_index, |
| const FS_QUADPOINTSF* quad_points) { |
| ASSERT(array); |
| ASSERT(quad_points); |
| ASSERT(IsValidQuadPointsIndex(array, quad_index)); |
| |
| size_t nIndex = quad_index * 8; |
| array->SetNewAt<CPDF_Number>(nIndex, quad_points->x1); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->y1); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->x2); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->y2); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->x3); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->y3); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->x4); |
| array->SetNewAt<CPDF_Number>(++nIndex, quad_points->y4); |
| } |
| |
| void AppendQuadPoints(CPDF_Array* array, const FS_QUADPOINTSF* quad_points) { |
| ASSERT(quad_points); |
| ASSERT(array); |
| |
| array->AddNew<CPDF_Number>(quad_points->x1); |
| array->AddNew<CPDF_Number>(quad_points->y1); |
| array->AddNew<CPDF_Number>(quad_points->x2); |
| array->AddNew<CPDF_Number>(quad_points->y2); |
| array->AddNew<CPDF_Number>(quad_points->x3); |
| array->AddNew<CPDF_Number>(quad_points->y3); |
| array->AddNew<CPDF_Number>(quad_points->x4); |
| array->AddNew<CPDF_Number>(quad_points->y4); |
| } |
| |
| void UpdateBBox(CPDF_Dictionary* annot_dict) { |
| ASSERT(annot_dict); |
| // Update BBox entry in appearance stream based on the bounding rectangle |
| // of the annotation's quadpoints. |
| CPDF_Stream* pStream = |
| GetAnnotAP(annot_dict, CPDF_Annot::AppearanceMode::Normal); |
| if (pStream) { |
| CFX_FloatRect boundingRect = |
| CPDF_Annot::BoundingRectFromQuadPoints(annot_dict); |
| if (boundingRect.Contains(pStream->GetDict()->GetRectFor("BBox"))) |
| pStream->GetDict()->SetRectFor("BBox", boundingRect); |
| } |
| } |
| |
| CPDF_Dictionary* GetAnnotDictFromFPDFAnnotation(FPDF_ANNOTATION annot) { |
| CPDF_AnnotContext* context = CPDFAnnotContextFromFPDFAnnotation(annot); |
| return context ? context->GetAnnotDict() : nullptr; |
| } |
| |
| } // namespace |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_IsSupportedSubtype(FPDF_ANNOTATION_SUBTYPE subtype) { |
| // The supported subtypes must also be communicated in the user doc. |
| return subtype == FPDF_ANNOT_CIRCLE || subtype == FPDF_ANNOT_FREETEXT || |
| subtype == FPDF_ANNOT_HIGHLIGHT || subtype == FPDF_ANNOT_INK || |
| subtype == FPDF_ANNOT_POPUP || subtype == FPDF_ANNOT_SQUARE || |
| subtype == FPDF_ANNOT_SQUIGGLY || subtype == FPDF_ANNOT_STAMP || |
| subtype == FPDF_ANNOT_STRIKEOUT || subtype == FPDF_ANNOT_TEXT || |
| subtype == FPDF_ANNOT_UNDERLINE; |
| } |
| |
| FPDF_EXPORT FPDF_ANNOTATION FPDF_CALLCONV |
| FPDFPage_CreateAnnot(FPDF_PAGE page, FPDF_ANNOTATION_SUBTYPE subtype) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage || !FPDFAnnot_IsSupportedSubtype(subtype)) |
| return nullptr; |
| |
| auto pDict = pPage->GetDocument()->New<CPDF_Dictionary>(); |
| pDict->SetNewFor<CPDF_Name>(pdfium::annotation::kType, "Annot"); |
| pDict->SetNewFor<CPDF_Name>(pdfium::annotation::kSubtype, |
| CPDF_Annot::AnnotSubtypeToString( |
| static_cast<CPDF_Annot::Subtype>(subtype))); |
| auto pNewAnnot = pdfium::MakeUnique<CPDF_AnnotContext>(pDict.Get(), pPage); |
| |
| CPDF_Array* pAnnotList = pPage->GetDict()->GetArrayFor("Annots"); |
| if (!pAnnotList) |
| pAnnotList = pPage->GetDict()->SetNewFor<CPDF_Array>("Annots"); |
| pAnnotList->Add(pDict); |
| |
| // Caller takes ownership. |
| return FPDFAnnotationFromCPDFAnnotContext(pNewAnnot.release()); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetAnnotCount(FPDF_PAGE page) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage) |
| return 0; |
| |
| CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots"); |
| return pAnnots ? pAnnots->size() : 0; |
| } |
| |
| FPDF_EXPORT FPDF_ANNOTATION FPDF_CALLCONV FPDFPage_GetAnnot(FPDF_PAGE page, |
| int index) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage || index < 0) |
| return nullptr; |
| |
| CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots"); |
| if (!pAnnots || static_cast<size_t>(index) >= pAnnots->size()) |
| return nullptr; |
| |
| CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetDirectObjectAt(index)); |
| if (!pDict) |
| return nullptr; |
| |
| auto pNewAnnot = pdfium::MakeUnique<CPDF_AnnotContext>(pDict, pPage); |
| |
| // Caller takes ownership. |
| return FPDFAnnotationFromCPDFAnnotContext(pNewAnnot.release()); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetAnnotIndex(FPDF_PAGE page, |
| FPDF_ANNOTATION annot) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage) |
| return -1; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return -1; |
| |
| CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots"); |
| if (!pAnnots) |
| return -1; |
| |
| CPDF_ArrayLocker locker(pAnnots); |
| auto it = std::find_if(locker.begin(), locker.end(), |
| [pAnnotDict](const RetainPtr<CPDF_Object>& candidate) { |
| return candidate->GetDirect() == pAnnotDict; |
| }); |
| |
| if (it == locker.end()) |
| return -1; |
| |
| return it - locker.begin(); |
| } |
| |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_CloseAnnot(FPDF_ANNOTATION annot) { |
| delete CPDFAnnotContextFromFPDFAnnotation(annot); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_RemoveAnnot(FPDF_PAGE page, |
| int index) { |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage || index < 0) |
| return false; |
| |
| CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots"); |
| if (!pAnnots || static_cast<size_t>(index) >= pAnnots->size()) |
| return false; |
| |
| pAnnots->RemoveAt(index); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_ANNOTATION_SUBTYPE FPDF_CALLCONV |
| FPDFAnnot_GetSubtype(FPDF_ANNOTATION annot) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return FPDF_ANNOT_UNKNOWN; |
| |
| return static_cast<FPDF_ANNOTATION_SUBTYPE>(CPDF_Annot::StringToAnnotSubtype( |
| pAnnotDict->GetStringFor(pdfium::annotation::kSubtype))); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_IsObjectSupportedSubtype(FPDF_ANNOTATION_SUBTYPE subtype) { |
| // The supported subtypes must also be communicated in the user doc. |
| return subtype == FPDF_ANNOT_INK || subtype == FPDF_ANNOT_STAMP; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_UpdateObject(FPDF_ANNOTATION annot, FPDF_PAGEOBJECT obj) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| CPDF_PageObject* pObj = CPDFPageObjectFromFPDFPageObject(obj); |
| if (!pAnnot || !pAnnot->HasForm() || !pObj) |
| return false; |
| |
| // Check that the annotation type is supported by this method. |
| if (!FPDFAnnot_IsObjectSupportedSubtype(FPDFAnnot_GetSubtype(annot))) |
| return false; |
| |
| // Check that the annotation already has an appearance stream, since an |
| // existing object is to be updated. |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnot->GetAnnotDict(), CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) |
| return false; |
| |
| // Check that the object is already in this annotation's object list. |
| CPDF_Form* pForm = pAnnot->GetForm(); |
| auto it = |
| std::find_if(pForm->begin(), pForm->end(), |
| [pObj](const std::unique_ptr<CPDF_PageObject>& candidate) { |
| return candidate.get() == pObj; |
| }); |
| if (it == pForm->end()) |
| return false; |
| |
| // Update the content stream data in the annotation's AP stream. |
| UpdateContentStream(pForm, pStream); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_AppendObject(FPDF_ANNOTATION annot, FPDF_PAGEOBJECT obj) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| CPDF_PageObject* pObj = CPDFPageObjectFromFPDFPageObject(obj); |
| if (!pAnnot || !pObj) |
| return false; |
| |
| // Check that the annotation type is supported by this method. |
| if (!FPDFAnnot_IsObjectSupportedSubtype(FPDFAnnot_GetSubtype(annot))) |
| return false; |
| |
| // If the annotation does not have an AP stream yet, generate and set it. |
| CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict(); |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnotDict, CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) { |
| CPVT_GenerateAP::GenerateEmptyAP(pAnnot->GetPage()->GetDocument(), |
| pAnnotDict); |
| pStream = GetAnnotAP(pAnnotDict, CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) |
| return false; |
| } |
| |
| // Get the annotation's corresponding form object for parsing its AP stream. |
| if (!pAnnot->HasForm()) |
| pAnnot->SetForm(pStream); |
| |
| // Check that the object did not come from the same annotation. If this check |
| // succeeds, then it is assumed that the object came from |
| // FPDFPageObj_CreateNew{Path|Rect}() or FPDFPageObj_New{Text|Image}Obj(). |
| // Note that an object that came from a different annotation must not be |
| // passed here, since an object cannot belong to more than one annotation. |
| CPDF_Form* pForm = pAnnot->GetForm(); |
| auto it = |
| std::find_if(pForm->begin(), pForm->end(), |
| [pObj](const std::unique_ptr<CPDF_PageObject>& candidate) { |
| return candidate.get() == pObj; |
| }); |
| if (it != pForm->end()) |
| return false; |
| |
| // Append the object to the object list. |
| pForm->AppendPageObject(pdfium::WrapUnique(pObj)); |
| |
| // Set the content stream data in the annotation's AP stream. |
| UpdateContentStream(pForm, pStream); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFAnnot_GetObjectCount(FPDF_ANNOTATION annot) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| if (!pAnnot) |
| return 0; |
| |
| if (!pAnnot->HasForm()) { |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnot->GetAnnotDict(), CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) |
| return 0; |
| |
| pAnnot->SetForm(pStream); |
| } |
| return pAnnot->GetForm()->GetPageObjectCount(); |
| } |
| |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFAnnot_GetObject(FPDF_ANNOTATION annot, int index) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| if (!pAnnot || index < 0) |
| return nullptr; |
| |
| if (!pAnnot->HasForm()) { |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnot->GetAnnotDict(), CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) |
| return nullptr; |
| |
| pAnnot->SetForm(pStream); |
| } |
| |
| return FPDFPageObjectFromCPDFPageObject( |
| pAnnot->GetForm()->GetPageObjectByIndex(index)); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_RemoveObject(FPDF_ANNOTATION annot, int index) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| if (!pAnnot || !pAnnot->HasForm() || index < 0) |
| return false; |
| |
| // Check that the annotation type is supported by this method. |
| if (!FPDFAnnot_IsObjectSupportedSubtype(FPDFAnnot_GetSubtype(annot))) |
| return false; |
| |
| // Check that the annotation already has an appearance stream, since an |
| // existing object is to be deleted. |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnot->GetAnnotDict(), CPDF_Annot::AppearanceMode::Normal); |
| if (!pStream) |
| return false; |
| |
| if (!pAnnot->GetForm()->ErasePageObjectAtIndex(index)) |
| return false; |
| |
| UpdateContentStream(pAnnot->GetForm(), pStream); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_SetColor(FPDF_ANNOTATION annot, |
| FPDFANNOT_COLORTYPE type, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict || R > 255 || G > 255 || B > 255 || A > 255) |
| return false; |
| |
| // For annotations with their appearance streams already defined, the path |
| // stream's own color definitions take priority over the annotation color |
| // definitions set by this method, hence this method will simply fail. |
| if (HasAPStream(pAnnotDict)) |
| return false; |
| |
| // Set the opacity of the annotation. |
| pAnnotDict->SetNewFor<CPDF_Number>("CA", A / 255.f); |
| |
| // Set the color of the annotation. |
| ByteString key = type == FPDFANNOT_COLORTYPE_InteriorColor ? "IC" : "C"; |
| CPDF_Array* pColor = pAnnotDict->GetArrayFor(key); |
| if (pColor) |
| pColor->Clear(); |
| else |
| pColor = pAnnotDict->SetNewFor<CPDF_Array>(key); |
| |
| pColor->AddNew<CPDF_Number>(R / 255.f); |
| pColor->AddNew<CPDF_Number>(G / 255.f); |
| pColor->AddNew<CPDF_Number>(B / 255.f); |
| |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_GetColor(FPDF_ANNOTATION annot, |
| FPDFANNOT_COLORTYPE type, |
| unsigned int* R, |
| unsigned int* G, |
| unsigned int* B, |
| unsigned int* A) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict || !R || !G || !B || !A) |
| return false; |
| |
| // For annotations with their appearance streams already defined, the path |
| // stream's own color definitions take priority over the annotation color |
| // definitions retrieved by this method, hence this method will simply fail. |
| if (HasAPStream(pAnnotDict)) |
| return false; |
| |
| CPDF_Array* pColor = pAnnotDict->GetArrayFor( |
| type == FPDFANNOT_COLORTYPE_InteriorColor ? "IC" : "C"); |
| *A = |
| (pAnnotDict->KeyExist("CA") ? pAnnotDict->GetNumberFor("CA") : 1) * 255.f; |
| if (!pColor) { |
| // Use default color. The default colors must be consistent with the ones |
| // used to generate AP. See calls to GetColorStringWithDefault() in |
| // CPVT_GenerateAP::Generate*AP(). |
| if (pAnnotDict->GetStringFor(pdfium::annotation::kSubtype) == "Highlight") { |
| *R = 255; |
| *G = 255; |
| *B = 0; |
| } else { |
| *R = 0; |
| *G = 0; |
| *B = 0; |
| } |
| return true; |
| } |
| |
| CFX_Color color = fpdfdoc::CFXColorFromArray(*pColor); |
| switch (color.nColorType) { |
| case CFX_Color::kRGB: |
| *R = color.fColor1 * 255.f; |
| *G = color.fColor2 * 255.f; |
| *B = color.fColor3 * 255.f; |
| break; |
| case CFX_Color::kGray: |
| *R = 255.f * color.fColor1; |
| *G = 255.f * color.fColor1; |
| *B = 255.f * color.fColor1; |
| break; |
| case CFX_Color::kCMYK: |
| *R = 255.f * (1 - color.fColor1) * (1 - color.fColor4); |
| *G = 255.f * (1 - color.fColor2) * (1 - color.fColor4); |
| *B = 255.f * (1 - color.fColor3) * (1 - color.fColor4); |
| break; |
| case CFX_Color::kTransparent: |
| *R = 0; |
| *G = 0; |
| *B = 0; |
| break; |
| } |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_HasAttachmentPoints(FPDF_ANNOTATION annot) { |
| if (!annot) |
| return false; |
| |
| FPDF_ANNOTATION_SUBTYPE subtype = FPDFAnnot_GetSubtype(annot); |
| return subtype == FPDF_ANNOT_LINK || subtype == FPDF_ANNOT_HIGHLIGHT || |
| subtype == FPDF_ANNOT_UNDERLINE || subtype == FPDF_ANNOT_SQUIGGLY || |
| subtype == FPDF_ANNOT_STRIKEOUT; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_SetAttachmentPoints(FPDF_ANNOTATION annot, |
| size_t quad_index, |
| const FS_QUADPOINTSF* quad_points) { |
| if (!FPDFAnnot_HasAttachmentPoints(annot) || !quad_points) |
| return false; |
| |
| CPDF_Dictionary* pAnnotDict = |
| CPDFAnnotContextFromFPDFAnnotation(annot)->GetAnnotDict(); |
| CPDF_Array* pQuadPointsArray = GetQuadPointsArrayFromDictionary(pAnnotDict); |
| if (!IsValidQuadPointsIndex(pQuadPointsArray, quad_index)) |
| return false; |
| |
| SetQuadPointsAtIndex(pQuadPointsArray, quad_index, quad_points); |
| UpdateBBox(pAnnotDict); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_AppendAttachmentPoints(FPDF_ANNOTATION annot, |
| const FS_QUADPOINTSF* quad_points) { |
| if (!FPDFAnnot_HasAttachmentPoints(annot) || !quad_points) |
| return false; |
| |
| CPDF_Dictionary* pAnnotDict = |
| CPDFAnnotContextFromFPDFAnnotation(annot)->GetAnnotDict(); |
| CPDF_Array* pQuadPointsArray = GetQuadPointsArrayFromDictionary(pAnnotDict); |
| if (!pQuadPointsArray) |
| pQuadPointsArray = AddQuadPointsArrayToDictionary(pAnnotDict); |
| AppendQuadPoints(pQuadPointsArray, quad_points); |
| UpdateBBox(pAnnotDict); |
| return true; |
| } |
| |
| FPDF_EXPORT size_t FPDF_CALLCONV |
| FPDFAnnot_CountAttachmentPoints(FPDF_ANNOTATION annot) { |
| if (!FPDFAnnot_HasAttachmentPoints(annot)) |
| return 0; |
| |
| const CPDF_Dictionary* pAnnotDict = |
| CPDFAnnotContextFromFPDFAnnotation(annot)->GetAnnotDict(); |
| const CPDF_Array* pArray = GetQuadPointsArrayFromDictionary(pAnnotDict); |
| return pArray ? pArray->size() / 8 : 0; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_GetAttachmentPoints(FPDF_ANNOTATION annot, |
| size_t quad_index, |
| FS_QUADPOINTSF* quad_points) { |
| if (!FPDFAnnot_HasAttachmentPoints(annot) || !quad_points) |
| return false; |
| |
| const CPDF_Dictionary* pAnnotDict = |
| CPDFAnnotContextFromFPDFAnnotation(annot)->GetAnnotDict(); |
| const CPDF_Array* pArray = GetQuadPointsArrayFromDictionary(pAnnotDict); |
| if (!pArray) |
| return false; |
| |
| return GetQuadPointsAtIndex(pArray, quad_index, quad_points); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_SetRect(FPDF_ANNOTATION annot, |
| const FS_RECTF* rect) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict || !rect) |
| return false; |
| |
| CFX_FloatRect newRect = CFXFloatRectFromFSRECTF(*rect); |
| |
| // Update the "Rect" entry in the annotation dictionary. |
| pAnnotDict->SetRectFor(pdfium::annotation::kRect, newRect); |
| |
| // If the annotation's appearance stream is defined, the annotation is of a |
| // type that does not have quadpoints, and the new rectangle is bigger than |
| // the current bounding box, then update the "BBox" entry in the AP |
| // dictionary too, since its "BBox" entry comes from annotation dictionary's |
| // "Rect" entry. |
| if (FPDFAnnot_HasAttachmentPoints(annot)) |
| return true; |
| |
| CPDF_Stream* pStream = |
| GetAnnotAP(pAnnotDict, CPDF_Annot::AppearanceMode::Normal); |
| if (pStream && newRect.Contains(pStream->GetDict()->GetRectFor("BBox"))) |
| pStream->GetDict()->SetRectFor("BBox", newRect); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_GetRect(FPDF_ANNOTATION annot, |
| FS_RECTF* rect) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict || !rect) |
| return false; |
| |
| *rect = FSRECTFFromCFXFloatRect( |
| pAnnotDict->GetRectFor(pdfium::annotation::kRect)); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_HasKey(FPDF_ANNOTATION annot, |
| FPDF_BYTESTRING key) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| return pAnnotDict && pAnnotDict->KeyExist(key); |
| } |
| |
| FPDF_EXPORT FPDF_OBJECT_TYPE FPDF_CALLCONV |
| FPDFAnnot_GetValueType(FPDF_ANNOTATION annot, FPDF_BYTESTRING key) { |
| if (!FPDFAnnot_HasKey(annot, key)) |
| return FPDF_OBJECT_UNKNOWN; |
| |
| auto* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| CPDF_Object* pObj = pAnnot->GetAnnotDict()->GetObjectFor(key); |
| return pObj ? pObj->GetType() : FPDF_OBJECT_UNKNOWN; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_SetStringValue(FPDF_ANNOTATION annot, |
| FPDF_BYTESTRING key, |
| FPDF_WIDESTRING value) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| pAnnotDict->SetNewFor<CPDF_String>(key, WideStringFromFPDFWideString(value)); |
| return true; |
| } |
| |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFAnnot_GetStringValue(FPDF_ANNOTATION annot, |
| FPDF_BYTESTRING key, |
| FPDF_WCHAR* buffer, |
| unsigned long buflen) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return 0; |
| |
| return Utf16EncodeMaybeCopyAndReturnLength(pAnnotDict->GetUnicodeTextFor(key), |
| buffer, buflen); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_GetNumberValue(FPDF_ANNOTATION annot, |
| FPDF_BYTESTRING key, |
| float* value) { |
| if (!value) |
| return false; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| const CPDF_Object* p = pAnnotDict->GetObjectFor(key); |
| if (!p || p->GetType() != FPDF_OBJECT_NUMBER) |
| return false; |
| |
| *value = p->GetNumber(); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_SetAP(FPDF_ANNOTATION annot, |
| FPDF_ANNOT_APPEARANCEMODE appearanceMode, |
| FPDF_WIDESTRING value) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| if (appearanceMode < 0 || appearanceMode >= FPDF_ANNOT_APPEARANCEMODE_COUNT) |
| return false; |
| |
| static constexpr const char* kModeKeyForMode[] = {"N", "R", "D"}; |
| static_assert( |
| FX_ArraySize(kModeKeyForMode) == FPDF_ANNOT_APPEARANCEMODE_COUNT, |
| "length of kModeKeyForMode should be equal to " |
| "FPDF_ANNOT_APPEARANCEMODE_COUNT"); |
| const char* modeKey = kModeKeyForMode[appearanceMode]; |
| |
| CPDF_Dictionary* pApDict = pAnnotDict->GetDictFor(pdfium::annotation::kAP); |
| |
| // If value is null, we're in remove mode. Otherwise, we're in add/update |
| // mode. |
| if (value) { |
| // Annotation object's non-empty bounding rect will be used as the /BBox |
| // for the associated /XObject object |
| CFX_FloatRect rect = pAnnotDict->GetRectFor(pdfium::annotation::kRect); |
| constexpr float kMinSize = 0.000001f; |
| if (rect.Width() < kMinSize || rect.Height() < kMinSize) |
| return false; |
| |
| CPDF_AnnotContext* pAnnotContext = |
| CPDFAnnotContextFromFPDFAnnotation(annot); |
| |
| CPDF_Document* pDoc = pAnnotContext->GetPage()->GetDocument(); |
| if (!pDoc) |
| return false; |
| |
| CPDF_Stream* pNewIndirectStream = pDoc->NewIndirect<CPDF_Stream>(); |
| |
| ByteString newAPStream = |
| PDF_EncodeText(WideStringFromFPDFWideString(value)); |
| pNewIndirectStream->SetData(newAPStream.raw_span()); |
| |
| CPDF_Dictionary* pStreamDict = pNewIndirectStream->GetDict(); |
| pStreamDict->SetNewFor<CPDF_Name>(pdfium::annotation::kType, "XObject"); |
| pStreamDict->SetNewFor<CPDF_Name>(pdfium::annotation::kSubtype, "Form"); |
| pStreamDict->SetRectFor("BBox", rect); |
| |
| // Storing reference to indirect object in annotation's AP |
| if (!pApDict) |
| pApDict = pAnnotDict->SetNewFor<CPDF_Dictionary>(pdfium::annotation::kAP); |
| |
| pApDict->SetNewFor<CPDF_Reference>(modeKey, pDoc, |
| pNewIndirectStream->GetObjNum()); |
| } else { |
| if (pApDict) { |
| if (appearanceMode == FPDF_ANNOT_APPEARANCEMODE_NORMAL) |
| pAnnotDict->RemoveFor(pdfium::annotation::kAP); |
| else |
| pApDict->RemoveFor(modeKey); |
| } |
| } |
| |
| return true; |
| } |
| |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFAnnot_GetAP(FPDF_ANNOTATION annot, |
| FPDF_ANNOT_APPEARANCEMODE appearanceMode, |
| FPDF_WCHAR* buffer, |
| unsigned long buflen) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return 0; |
| |
| if (appearanceMode < 0 || appearanceMode >= FPDF_ANNOT_APPEARANCEMODE_COUNT) |
| return 0; |
| |
| CPDF_Annot::AppearanceMode mode = |
| static_cast<CPDF_Annot::AppearanceMode>(appearanceMode); |
| |
| CPDF_Stream* pStream = GetAnnotAPNoFallback(pAnnotDict, mode); |
| return Utf16EncodeMaybeCopyAndReturnLength( |
| pStream ? pStream->GetUnicodeText() : WideString(), buffer, buflen); |
| } |
| |
| FPDF_EXPORT FPDF_ANNOTATION FPDF_CALLCONV |
| FPDFAnnot_GetLinkedAnnot(FPDF_ANNOTATION annot, FPDF_BYTESTRING key) { |
| CPDF_AnnotContext* pAnnot = CPDFAnnotContextFromFPDFAnnotation(annot); |
| if (!pAnnot) |
| return nullptr; |
| |
| CPDF_Dictionary* pLinkedDict = pAnnot->GetAnnotDict()->GetDictFor(key); |
| if (!pLinkedDict || pLinkedDict->GetStringFor("Type") != "Annot") |
| return nullptr; |
| |
| auto pLinkedAnnot = |
| pdfium::MakeUnique<CPDF_AnnotContext>(pLinkedDict, pAnnot->GetPage()); |
| |
| // Caller takes ownership. |
| return FPDFAnnotationFromCPDFAnnotContext(pLinkedAnnot.release()); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFAnnot_GetFlags(FPDF_ANNOTATION annot) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| return pAnnotDict ? pAnnotDict->GetIntegerFor(pdfium::annotation::kF) |
| : FPDF_ANNOT_FLAG_NONE; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_SetFlags(FPDF_ANNOTATION annot, |
| int flags) { |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| pAnnotDict->SetNewFor<CPDF_Number>(pdfium::annotation::kF, flags); |
| return true; |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFAnnot_GetFormFieldFlags(FPDF_FORMHANDLE hHandle, FPDF_ANNOTATION annot) { |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return FPDF_FORMFLAG_NONE; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return FPDF_FORMFLAG_NONE; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| CPDF_FormField* pFormField = pPDFForm->GetFieldByDict(pAnnotDict); |
| return pFormField ? pFormField->GetFieldFlags() : FPDF_FORMFLAG_NONE; |
| } |
| |
| FPDF_EXPORT FPDF_ANNOTATION FPDF_CALLCONV |
| FPDFAnnot_GetFormFieldAtPoint(FPDF_FORMHANDLE hHandle, |
| FPDF_PAGE page, |
| double page_x, |
| double page_y) { |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return nullptr; |
| |
| CPDF_Page* pPage = CPDFPageFromFPDFPage(page); |
| if (!pPage) |
| return nullptr; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| int annot_index = -1; |
| CPDF_FormControl* pFormCtrl = pPDFForm->GetControlAtPoint( |
| pPage, CFX_PointF(static_cast<float>(page_x), static_cast<float>(page_y)), |
| &annot_index); |
| if (!pFormCtrl || annot_index == -1) |
| return nullptr; |
| return FPDFPage_GetAnnot(page, annot_index); |
| } |
| |
| FPDF_EXPORT int FPDF_CALLCONV FPDFAnnot_GetOptionCount(FPDF_FORMHANDLE hHandle, |
| FPDF_ANNOTATION annot) { |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return -1; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return -1; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| CPDF_FormField* pFormField = pPDFForm->GetFieldByDict(pAnnotDict); |
| return pFormField ? pFormField->CountOptions() : -1; |
| } |
| |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFAnnot_GetOptionLabel(FPDF_FORMHANDLE hHandle, |
| FPDF_ANNOTATION annot, |
| int index, |
| FPDF_WCHAR* buffer, |
| unsigned long buflen) { |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return 0; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict || index < 0) |
| return 0; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| CPDF_FormField* pFormField = pPDFForm->GetFieldByDict(pAnnotDict); |
| if (!pFormField || index >= pFormField->CountOptions()) |
| return 0; |
| |
| WideString ws = pFormField->GetOptionLabel(index); |
| return Utf16EncodeMaybeCopyAndReturnLength(ws, buffer, buflen); |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFAnnot_GetFontSize(FPDF_FORMHANDLE hHandle, |
| FPDF_ANNOTATION annot, |
| float* value) { |
| if (!value) |
| return false; |
| |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return false; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| CPDF_FormControl* pFormControl = pPDFForm->GetControlByDict(pAnnotDict); |
| if (!pFormControl) |
| return false; |
| |
| CPDFSDK_Widget* pWidget = pForm->GetWidget(pFormControl); |
| if (!pWidget) |
| return false; |
| |
| *value = pWidget->GetFontSize(); |
| return true; |
| } |
| |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFAnnot_IsChecked(FPDF_FORMHANDLE hHandle, |
| FPDF_ANNOTATION annot) { |
| CPDFSDK_InteractiveForm* pForm = FormHandleToInteractiveForm(hHandle); |
| if (!pForm) |
| return false; |
| |
| CPDF_Dictionary* pAnnotDict = GetAnnotDictFromFPDFAnnotation(annot); |
| if (!pAnnotDict) |
| return false; |
| |
| CPDF_InteractiveForm* pPDFForm = pForm->GetInteractiveForm(); |
| CPDF_FormField* pFormField = pPDFForm->GetFieldByDict(pAnnotDict); |
| if (!pFormField) |
| return false; |
| |
| if (pFormField->GetType() != CPDF_FormField::kCheckBox && |
| pFormField->GetType() != CPDF_FormField::kRadioButton) { |
| return false; |
| } |
| |
| CPDF_FormControl* pFormControl = pPDFForm->GetControlByDict(pAnnotDict); |
| if (!pFormControl) |
| return false; |
| |
| CPDFSDK_Widget* pWidget = pForm->GetWidget(pFormControl); |
| return pWidget && pWidget->IsChecked(); |
| } |
