/usr/lib/ocaml/camlpdf/pdfgraphics.mli is in libcamlpdf-ocaml-dev 2.2.1-1build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | (** Structured Graphics. This will (eventually) be a module allowing for the raising of a page's contents to a tree form, the manipulation of that tree and its writing back to the page, with no possible loss of fidelity.
It is only a little experiment at the moment... *)
open Pdfutil
open Pdfio
(** Point. *)
type fpoint = float * float
(** Winding rule. *)
type winding_rule = EvenOdd | NonZero
(** A segment (a straight line or bezier curve) *)
type segment =
| Straight of fpoint * fpoint
| Bezier of fpoint * fpoint * fpoint * fpoint
(** Each segment list may be marked as a hole or not. *)
type hole = Hole | Not_hole
(* A [subpath] is either closed or open. *)
type closure = Closed | Open
(** A [subpath] is the pair of a hole and a list of segments. *)
type subpath = hole * closure * segment list
(** A path is made from a number of subpaths. *)
type path = winding_rule * subpath list
val string_of_path : path -> string
(** Colour values *)
type tiling = Tiling
type function_shading =
{funshading_domain : float * float * float * float;
funshading_matrix : Pdftransform.transform_matrix;
funshading_function : Pdffun.t}
type radial_shading =
{radialshading_coords : float * float * float * float * float * float;
radialshading_domain : float * float;
radialshading_function : Pdffun.t list;
radialshading_extend : bool * bool}
type axial_shading =
{axialshading_coords : float * float * float * float;
axialshading_domain : float * float;
axialshading_function : Pdffun.t list;
axialshading_extend : bool * bool}
type shading_kind =
| FunctionShading of function_shading
| AxialShading of axial_shading
| RadialShading of radial_shading
| FreeFormGouraudShading
| LatticeFormGouraudShading
| CoonsPatchMesh
| TensorProductPatchMesh
type shading =
{shading_colourspace : Pdf.pdfobject;
shading_background : Pdf.pdfobject option;
shading_bbox : Pdf.pdfobject option;
shading_antialias : bool;
shading_matrix : Pdftransform.transform_matrix;
shading_extgstate : Pdf.pdfobject;
shading : shading_kind}
type pattern =
| ColouredTilingPattern of tiling
| UncolouredTilingPattern of tiling
| ShadingPattern of shading
type colvals =
| Floats of float list
| Named of (string * float list)
| Pattern of pattern
type transparency_attributes =
{fill_transparency : float;
line_transparency : float}
(** Path attributes. *)
type path_attributes =
{path_transform : Pdftransform.transform_matrix;
path_fill : (Pdfspace.t * colvals) option;
path_line : (Pdfspace.t * colvals) option;
path_linewidth : float;
path_joinstyle : int;
path_capstyle : int;
path_dash : float list * float;
path_mitrelimit : float;
path_transparency : transparency_attributes;
path_intent : string}
type text_attributes =
{textmode : int}
type textblock_attributes =
{textblock_transform : Pdftransform.transform_matrix}
type textblock =
text_attributes * Pdfops.t
type image_attributes =
{image_transform : Pdftransform.transform_matrix;
image_transparency : float;
image_softmask : softmask option} (* The /ca value *)
and softmask_subtype =
Alpha | Luminosity
and transparency_group =
{tr_group_colourspace : Pdf.pdfobject option;
isolated : bool;
knockout : bool;
tr_graphic : t}
and softmask =
{softmask_subtype : softmask_subtype;
transparency_group : transparency_group;
softmask_bbox : float * float * float * float;
backdrop : float list option;
softmask_transfer : Pdffun.t option}
and fontname = string * Pdf.pdfobject
(** For now, just support for reading paths out. Eventually a tree-structure for
an op stream. *)
and graphic_elt =
| Path of (path * path_attributes)
| Text of textblock list * textblock_attributes
| MCPoint of string
| MCPointProperties of string * Pdf.pdfobject
| MCSection of string * graphic_elt list
| MCSectionProperties of string * Pdf.pdfobject * graphic_elt list
| Image of image_attributes * int
| GraphicInlineImage of Pdf.pdfobject * bytes * Pdftransform.transform_matrix
| Clip of path * graphic_elt list
| Shading of path option * shading * Pdftransform.transform_matrix
and t =
{elements : graphic_elt list; (* Page content *)
fonts : fontname list; (* Fonts *)
resources : Pdf.pdfobject} (* Anything else in /Resources *)
(** Bounding box xmin, xmax, ymin, yman of a graphic *)
val bbox_of_graphic : t -> float * float * float * float
(** Make a graphic from operations. *)
val graphic_of_page : Pdf.t -> Pdfpage.t -> t
(** Make a graphic from a simple string. *)
val graphic_of_ops : Pdfops.t list -> t
(** Flatten a graphic to a list of operations and replace the operations in a
page by them, returning the new page. *)
val page_of_graphic : Pdf.t -> (float * float * float * float) -> t -> Pdfpage.t
(** Debug string of a [graphic] *)
val string_of_graphic : t -> string
(** Operations from a simple graphic (i.e no need for resources etc.) *)
val ops_of_simple_graphic : t -> Pdfops.t list
(** Pdfdoc.content entry from a simple graphic (i.e no need for resources etc.) *)
val streams_of_simple_graphic : t -> Pdf.pdfobject list
(** Transform a graphic by a matrix. *)
val transform_graphic : Pdftransform.transform_matrix -> t -> t
|