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authorjaepark <jaepark@google.com>2016-09-09 15:39:09 -0700
committerCommit bot <commit-bot@chromium.org>2016-09-09 15:39:09 -0700
commit75f84a56fed36111ece82d0ac96e87289622b093 (patch)
treea1e1dc33250b3ec31032a2550298cd4af36c3211 /core/fpdfdoc/cpdf_annot.cpp
parent55a1eb01db6ceadf9c180931b2663338b8cbc2fd (diff)
downloadpdfium-75f84a56fed36111ece82d0ac96e87289622b093.tar.xz
Define behaviors of FPDF_RenderPageBitmap_Retail and FPDF_FFLDraw.chromium/2858chromium/2857chromium/2856
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
Diffstat (limited to 'core/fpdfdoc/cpdf_annot.cpp')
-rw-r--r--core/fpdfdoc/cpdf_annot.cpp25
1 files changed, 21 insertions, 4 deletions
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);