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6 : * 1.1 (the "License"); you may not use this file except in compliance with
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15 : * The Original Code is mozilla.org code.
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17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
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22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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37 :
38 : #ifndef NSSIZE_H
39 : #define NSSIZE_H
40 :
41 : #include "nsCoord.h"
42 : #include "mozilla/gfx/BaseSize.h"
43 :
44 : // Maximum allowable size
45 : #define NS_MAXSIZE nscoord_MAX
46 :
47 : struct nsIntSize;
48 :
49 : struct nsSize : public mozilla::gfx::BaseSize<nscoord, nsSize> {
50 : typedef mozilla::gfx::BaseSize<nscoord, nsSize> Super;
51 :
52 0 : nsSize() : Super() {}
53 0 : nsSize(nscoord aWidth, nscoord aHeight) : Super(aWidth, aHeight) {}
54 :
55 : inline nsIntSize ScaleToNearestPixels(float aXScale, float aYScale,
56 : nscoord aAppUnitsPerPixel) const;
57 :
58 : // Converts this size from aFromAPP, an appunits per pixel ratio, to aToAPP.
59 : inline nsSize ConvertAppUnits(PRInt32 aFromAPP, PRInt32 aToAPP) const;
60 : };
61 :
62 : struct nsIntSize : public mozilla::gfx::BaseSize<PRInt32, nsIntSize> {
63 : typedef mozilla::gfx::BaseSize<PRInt32, nsIntSize> Super;
64 :
65 19 : nsIntSize() : Super() {}
66 75 : nsIntSize(PRInt32 aWidth, PRInt32 aHeight) : Super(aWidth, aHeight) {}
67 : };
68 :
69 : inline nsIntSize
70 0 : nsSize::ScaleToNearestPixels(float aXScale, float aYScale,
71 : nscoord aAppUnitsPerPixel) const
72 : {
73 : return nsIntSize(
74 0 : NSToIntRoundUp(NSAppUnitsToDoublePixels(width, aAppUnitsPerPixel) * aXScale),
75 0 : NSToIntRoundUp(NSAppUnitsToDoublePixels(height, aAppUnitsPerPixel) * aYScale));
76 : }
77 :
78 : inline nsSize
79 0 : nsSize::ConvertAppUnits(PRInt32 aFromAPP, PRInt32 aToAPP) const {
80 0 : if (aFromAPP != aToAPP) {
81 0 : nsSize size;
82 0 : size.width = NSToCoordRound(NSCoordScale(width, aFromAPP, aToAPP));
83 0 : size.height = NSToCoordRound(NSCoordScale(height, aFromAPP, aToAPP));
84 0 : return size;
85 : }
86 0 : return *this;
87 : }
88 :
89 : #endif /* NSSIZE_H */
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