papyrus.proto

message Page {
    optional Background background = 1;
    optional Layer layer           = 3;
}

message Background {
    enum Type {
        RuledPaper = 1;
        QuadPaper  = 2;
        Blank      = 3;
        PDF        = 4;
        Papyr      = 5;
    }
    required Type   type   = 1;
    optional float  width  = 4;
    optional float  height = 5;
    optional uint32 color  = 6;
    optional RuledPaperBackground ruled_paper_background = 1000;
    optional QuadPaperBackground  quad_paper_background  = 1001;
    optional BlankBackground      blank_background       = 1002;
    optional PDFBackground        pdf_background         = 1003;
    optional PapyrBackground      papyr_background       = 1004;
}

message RuledPaperBackground {
    // TODO
}

message QuadPaperBackground {
    // TODO
}

message BlankBackground {
    // Empty
}

message PDFBackground {
    // TODO
}

message PapyrBackground {
    // Empty
}

message Layer {
    repeated Item item  = 1;
    optional RectF bounds = 2;
}

message Rect {
    optional int32 left   = 1;
    optional int32 right  = 2;
    optional int32 top    = 3;
    optional int32 bottom = 4;
}

message RectF {
    optional float left   = 1;
    optional float right  = 2;
    optional float top    = 3;
    optional float bottom = 4;
}

message Item {
    enum Type {
        Stroke = 1;
        Shape  = 2;
        Text   = 3;
        Image  = 4;
    }
    required Type   type   = 1;
    optional Stroke stroke = 1000;
    optional Shape  shape  = 1001;
    optional Text   text   = 1002;
    optional Image  image  = 1003;
}

message Stroke {
    enum StrokeType {
        Normal    = 1;
        Line      = 2;
        Highlight = 3;
        Smooth    = 4;
    }
    optional uint32     color             = 1;
    optional float      weight            = 2;
    optional Point      reference_point   = 3;
    repeated Point      point             = 4;
    optional RectF      bounds            = 5;
    optional StrokeType stroke_type       = 6;
    optional RectF      fitted_bounds     = 7;
}

message Point {
    optional float x        = 1;
    optional float y        = 2;
    optional float pressure = 3;
}

message Shape {
    enum ShapeType {
        Ellipse = 1;
    }
    required ShapeType type    = 1;
    optional Ellipse   ellipse = 1000;
}

message Ellipse {
    optional int32    color        = 1;
    optional float    weight       = 2;
    optional float    center_x     = 3;
    optional float    center_y     = 4;
    optional float    radius_x     = 5;
    optional float    radius_y     = 6;
    optional RectF    bounds       = 7;
    optional RectF    oval         = 8;
    optional float    start_angle  = 9;
    optional float    sweep_angle  = 10;
}

message Text {
    optional string  text     = 1;
    optional uint32  color    = 2;
    optional float   weight   = 3;
    optional RectF   bounds   = 4;
    optional int32   version  = 5;
}

message Image {
    optional string  id             = 1;
    optional string  image_hash     = 2;
    optional RectF   bounds         = 3;
    optional bool    flip_x         = 4;
    optional bool    flip_y         = 5;
    optional Rect    crop_bounds    = 6;
    optional int32   rotation       = 7;
}