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