зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
3.2 KiB
C++
92 строки
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_TextMetrics_h
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#define mozilla_dom_TextMetrics_h
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#include "mozilla/dom/CanvasRenderingContext2DBinding.h"
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#include "mozilla/dom/NonRefcountedDOMObject.h"
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namespace mozilla {
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namespace dom {
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class TextMetrics final : public NonRefcountedDOMObject {
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public:
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explicit TextMetrics(double aWidth, double aActualBoundingBoxLeft,
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double aActualBoundingBoxRight,
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double aFontBoundingBoxAscent,
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double aFontBoundingBoxDescent,
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double aActualBoundingBoxAscent,
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double aActualBoundingBoxDescent, double aEmHeightAscent,
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double aEmHeightDescent, double aHangingBaseline,
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double aAlphabeticBaseline, double aIdeographicBaseline)
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: width(aWidth),
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actualBoundingBoxLeft(aActualBoundingBoxLeft),
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actualBoundingBoxRight(aActualBoundingBoxRight),
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fontBoundingBoxAscent(aFontBoundingBoxAscent),
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fontBoundingBoxDescent(aFontBoundingBoxDescent),
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actualBoundingBoxAscent(aActualBoundingBoxAscent),
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actualBoundingBoxDescent(aActualBoundingBoxDescent),
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emHeightAscent(aEmHeightAscent),
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emHeightDescent(aEmHeightDescent),
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hangingBaseline(aHangingBaseline),
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alphabeticBaseline(aAlphabeticBaseline),
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ideographicBaseline(aIdeographicBaseline) {
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MOZ_COUNT_CTOR(TextMetrics);
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}
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MOZ_COUNTED_DTOR(TextMetrics)
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double Width() const { return width; }
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double ActualBoundingBoxLeft() const { return actualBoundingBoxLeft; }
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double ActualBoundingBoxRight() const { return actualBoundingBoxRight; }
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// y-direction
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double FontBoundingBoxAscent() const { return fontBoundingBoxAscent; }
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double FontBoundingBoxDescent() const { return fontBoundingBoxDescent; }
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double ActualBoundingBoxAscent() const { return actualBoundingBoxAscent; }
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double ActualBoundingBoxDescent() const { return actualBoundingBoxDescent; }
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double EmHeightAscent() const { return emHeightAscent; }
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double EmHeightDescent() const { return emHeightDescent; }
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double HangingBaseline() const { return hangingBaseline; }
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double AlphabeticBaseline() const { return alphabeticBaseline; }
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double IdeographicBaseline() const { return ideographicBaseline; }
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bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
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JS::MutableHandle<JSObject*> aReflector) {
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return TextMetrics_Binding::Wrap(aCx, this, aGivenProto, aReflector);
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}
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private:
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double width;
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double actualBoundingBoxLeft;
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double actualBoundingBoxRight;
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double fontBoundingBoxAscent;
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double fontBoundingBoxDescent;
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double actualBoundingBoxAscent;
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double actualBoundingBoxDescent;
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double emHeightAscent;
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double emHeightDescent;
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double hangingBaseline;
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double alphabeticBaseline;
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double ideographicBaseline;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_TextMetrics_h
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