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Diffstat (limited to 'core/fpdfapi/page/ipdf_page.h')
| -rw-r--r-- | core/fpdfapi/page/ipdf_page.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/core/fpdfapi/page/ipdf_page.h b/core/fpdfapi/page/ipdf_page.h index 7c9fce7726..9b28559a94 100644 --- a/core/fpdfapi/page/ipdf_page.h +++ b/core/fpdfapi/page/ipdf_page.h @@ -20,6 +20,11 @@ class CPDFXFA_Page; // Interface implemented by both page types (CPDF_Page and CPDFXFA_Page). class IPDF_Page : public Retainable { public: + // There are actually 3 cases: a PDF page, an XFA page backed by a PDF page, + // and an XFA page not backed by a PDF page. AsPDFPage() will return the + // PDF page in either of the first two cases. AsXFAPage() is a straight + // downcast and is null if not either of the last two cases. Hence, both + // of these may return non-null on a given page. virtual CPDF_Page* AsPDFPage() = 0; virtual CPDFXFA_Page* AsXFAPage() = 0; |