From 75f84a56fed36111ece82d0ac96e87289622b093 Mon Sep 17 00:00:00 2001 From: jaepark Date: Fri, 9 Sep 2016 15:39:09 -0700 Subject: Define behaviors of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw. Previously, PDFium only supported widget annotations to draw forms. As we've implemented other annotations, the behavior of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw changed. So, this CL clearly defines what needs to be done in FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw. This CL first assumes that PDFium users will always call FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw to render PDF pages, because otherwise they are not able to support PDF forms. FPDF_RenderPageBitmap_Retail should only deal with non-widget annotations, such as highlight, underline, text, etc. If FPDF_ANNOT flag is passed, non-widget annotations are drawn. Otherwise, they are hidden. FPDF_FFLDraw should only deal with annotations that requires user-interaction, such as widget annotations and popup annotation. Since popup annotation is associated with non-widget annotation, they should not be drawn if the associated annotation is hidden. Thus, if FPDF_ANNOT flag is passed, popup annotations are drawn. Otherwise, they are hidden. Widget annotations should be always drawn regardless of FPDF_ANNOT flag since they need to be always displayed for PDF forms. Also, roll DEPS for testing/corpus to 8485b30. BUG=pdfium:594 Review-Url: https://codereview.chromium.org/2323203002 --- core/fpdfdoc/cpdf_annot.cpp | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) (limited to 'core/fpdfdoc/cpdf_annot.cpp') diff --git a/core/fpdfdoc/cpdf_annot.cpp b/core/fpdfdoc/cpdf_annot.cpp index 4e0b04e9b6..0cc3596a4d 100644 --- a/core/fpdfdoc/cpdf_annot.cpp +++ b/core/fpdfdoc/cpdf_annot.cpp @@ -73,6 +73,16 @@ void CPDF_Annot::GenerateAPIfNeeded() { CPVT_GenerateAP::GenerateUnderlineAP(m_pDocument, m_pAnnotDict); } +bool CPDF_Annot::ShouldDrawAnnotation() { + if (IsAnnotationHidden(m_pAnnotDict)) + return false; + + if (m_nSubtype == CPDF_Annot::Subtype::POPUP && !m_bOpenState) + return false; + + return true; +} + void CPDF_Annot::ClearCachedAP() { m_APMap.clear(); } @@ -294,10 +304,7 @@ FX_BOOL CPDF_Annot::DrawAppearance(CPDF_Page* pPage, const CFX_Matrix* pUser2Device, AppearanceMode mode, const CPDF_RenderOptions* pOptions) { - if (IsAnnotationHidden(m_pAnnotDict)) - return FALSE; - - if (m_nSubtype == CPDF_Annot::Subtype::POPUP && !m_bOpenState) + if (!ShouldDrawAnnotation()) return FALSE; // It might happen that by the time this annotation instance was created, @@ -322,6 +329,16 @@ FX_BOOL CPDF_Annot::DrawInContext(const CPDF_Page* pPage, CPDF_RenderContext* pContext, const CFX_Matrix* pUser2Device, AppearanceMode mode) { + if (!ShouldDrawAnnotation()) + return FALSE; + + // It might happen that by the time this annotation instance was created, + // it was flagged as "hidden" (e.g. /F 2), and hence CPVT_GenerateAP decided + // to not "generate" its AP. + // If for a reason the object is no longer hidden, but still does not have + // its "AP" generated, generate it now. + GenerateAPIfNeeded(); + CFX_Matrix matrix; CPDF_Form* pForm = FPDFDOC_Annot_GetMatrix(pPage, this, mode, pUser2Device, matrix); -- cgit v1.2.3