blob: c6a1bf310591879465060a24d928babf30e8d6a3 [file] [log] [blame]
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
[
Exposed=(Window,Worker),
] interface TextMetrics {
// FIXME: All the unrestricted float attributes below should be doubles.
// x-direction
readonly attribute unrestricted float width; // advance width
readonly attribute unrestricted float actualBoundingBoxLeft;
readonly attribute unrestricted float actualBoundingBoxRight;
// y-direction
readonly attribute unrestricted float fontBoundingBoxAscent;
readonly attribute unrestricted float fontBoundingBoxDescent;
readonly attribute unrestricted float actualBoundingBoxAscent;
readonly attribute unrestricted float actualBoundingBoxDescent;
readonly attribute unrestricted float emHeightAscent;
readonly attribute unrestricted float emHeightDescent;
readonly attribute unrestricted float hangingBaseline;
readonly attribute unrestricted float alphabeticBaseline;
readonly attribute unrestricted float ideographicBaseline;
};