package ocgtk

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OCaml bindings for GTK 4

Install 

dune-project
 Dependency

github.com Edit opam file Versions (2)

Authors

  1. C
    Chris Armstrong

Maintainers

  1. H
    hello@chrisarmstrong.dev

Sources

v0.1-preview2.tar.gz
sha256=4e50fdb5093136a10fc8ffbe388e44cbcb70d52f8afdd48863ec7e22580ff054

doc/ocgtk.pango/Ocgtk_pango/Pango/Wrappers/Font_map/index.html

Module Wrappers.Font_map

type t = [ `font_map | `object_ ] Gobject.obj
val reload_font : t -> [ `font | `object_ ] Gobject.obj -> float -> [ `context | `object_ ] Gobject.obj option -> string option -> [ `font | `object_ ] Gobject.obj

Returns a new font that is like @font, except that its size is multiplied by @scale, its backend-dependent configuration (e.g. cairo font options) is replaced by the one in @context, and its variations are replaced by @variations.

val load_fontset : t -> [ `context | `object_ ] Gobject.obj -> [ `font_description ] Gobject.obj -> [ `language ] Gobject.obj -> [ `fontset | `object_ ] Gobject.obj option

Load a set of fonts in the fontmap that can be used to render a font matching @desc.

val load_font : t -> [ `context | `object_ ] Gobject.obj -> [ `font_description ] Gobject.obj -> [ `font | `object_ ] Gobject.obj option

Load the font in the fontmap that is the closest match for @desc.

val list_families : t -> [ `font_family | `object_ ] Gobject.obj array * int

List all families for a fontmap.

Note that the returned families are not in any particular order.

`PangoFontMap` also implemented the iface@Gio.ListModel interface for enumerating families.

val get_serial : t -> int

Returns the current serial number of @fontmap.

The serial number is initialized to an small number larger than zero when a new fontmap is created and is increased whenever the fontmap is changed. It may wrap, but will never have the value 0. Since it can wrap, never compare it with "less than", always use "not equals".

The fontmap can only be changed using backend-specific API, like changing fontmap resolution.

This can be used to automatically detect changes to a `PangoFontMap`, like in `PangoContext`.

val get_family : t -> string -> [ `font_family | `object_ ] Gobject.obj

Gets a font family by name.

val create_context : t -> [ `context | `object_ ] Gobject.obj

Creates a `PangoContext` connected to @fontmap.

This is equivalent to ctor@Pango.Context.new followed by method@Pango.Context.set_font_map.

If you are using Pango as part of a higher-level system, that system may have it's own way of create a `PangoContext`. For instance, the GTK toolkit has, among others, gtk_widget_get_pango_context(). Use those instead.

val changed : t -> unit

Forces a change in the context, which will cause any `PangoContext` using this fontmap to change.

This function is only useful when implementing a new backend for Pango, something applications won't do. Backends should call this function if they have attached extra data to the context and such data is changed.

val get_item_type : t -> Gobject.Type.t

Get property: item-type

val get_n_items : t -> int

Get property: n-items