+ class mask_info;
+
+ class vector_mask_info
+ {
+ enum class flags {
+ inverted = 1,
+ unlinked = 2,
+ disabled = 4,
+ unsupported = 128
+ };
+
+ std::uint8_t flags_;
+ rect<int> rect_;
+
+ friend class layer::mask_info;
+ bool populate(int length, bigendian_file_input_stream& stream, int doc_width, int doc_height);
+
+ public:
+ vector_mask_info() : flags_(0)
+ {}
+
+ bool enabled() const { return (flags_ & static_cast<std::uint8_t>(flags::disabled)) == 0; }
+ bool linked() const { return (flags_ & static_cast<std::uint8_t>(flags::unlinked)) == 0; }
+ bool inverted() const { return (flags_ & static_cast<std::uint8_t>(flags::inverted)) == static_cast<std::uint8_t>(flags::inverted); }
+ bool unsupported() const { return (flags_ & static_cast<std::uint8_t>(flags::unsupported)) == static_cast<std::uint8_t>(flags::unsupported); }
+
+ bool empty() { return rect_.empty(); }
+
+ const rect<int>& rect() const { return rect_; }
+ };
+
+ class mask_info