foss-mmo/modules/dom/text-metrics.scm

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;;; Copyright (C) 2025 Amy Grinn <amy@spritely.institute>
;;;
;;; Licensed under the Apache License, Version 2.0 (the "License");
;;; you may not use this file except in compliance with the License.
;;; You may obtain a copy of the License at
;;;
;;; http://www.apache.org/licenses/LICENSE-2.0
;;;
;;; Unless required by applicable law or agreed to in writing, software
;;; distributed under the License is distributed on an "AS IS" BASIS,
;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;;; See the License for the specific language governing permissions and
;;; limitations under the License.
;;; Commentary:
;;;
;;; HTML canvas TextMetrics interface bindings
;;;
;;; Code:
(define-module (dom text-metrics)
#:pure
#:use-module (scheme base)
#:use-module (hoot ffi)
#:export (text-metrics-actual-bounding-box-ascent
text-metrics-actual-bounding-box-descent))
(define-foreign text-metrics-actual-bounding-box-ascent
"textMetrics" "actualBoundingBoxAscent"
(ref extern) -> i32)
(define-foreign text-metrics-actual-bounding-box-descent
"textMetrics" "actualBoundingBoxDescent"
(ref extern) -> i32)