The Tor Browser / file comparison
comparison: gfx/src/nsScriptableRegion.cpp
gfx/src/nsScriptableRegion.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:e5ad97efec3f |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #include "nsScriptableRegion.h" | |
| 8 #include <stdint.h> // for uint32_t | |
| 9 #include <sys/types.h> // for int32_t | |
| 10 #include "js/RootingAPI.h" // for Rooted | |
| 11 #include "js/Value.h" // for INT_TO_JSVAL, etc | |
| 12 #include "jsapi.h" // for JS_DefineElement, etc | |
| 13 #include "mozilla/Assertions.h" // for MOZ_ASSERT_HELPER2 | |
| 14 #include "nsError.h" // for NS_OK, NS_ERROR_FAILURE, etc | |
| 15 #include "nsID.h" | |
| 16 #include "nsRect.h" // for nsIntRect | |
| 17 #include "nscore.h" // for NS_IMETHODIMP | |
| 18 | |
| 19 class JSObject; | |
| 20 struct JSContext; | |
| 21 | |
| 22 nsScriptableRegion::nsScriptableRegion() | |
| 23 { | |
| 24 } | |
| 25 | |
| 26 NS_IMPL_ISUPPORTS(nsScriptableRegion, nsIScriptableRegion) | |
| 27 | |
| 28 NS_IMETHODIMP nsScriptableRegion::Init() | |
| 29 { | |
| 30 return NS_OK; | |
| 31 } | |
| 32 | |
| 33 NS_IMETHODIMP nsScriptableRegion::SetToRegion(nsIScriptableRegion *aRegion) | |
| 34 { | |
| 35 aRegion->GetRegion(&mRegion); | |
| 36 return NS_OK; | |
| 37 } | |
| 38 | |
| 39 NS_IMETHODIMP nsScriptableRegion::SetToRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight) | |
| 40 { | |
| 41 mRegion = nsIntRect(aX, aY, aWidth, aHeight); | |
| 42 return NS_OK; | |
| 43 } | |
| 44 | |
| 45 NS_IMETHODIMP nsScriptableRegion::IntersectRegion(nsIScriptableRegion *aRegion) | |
| 46 { | |
| 47 nsIntRegion region; | |
| 48 aRegion->GetRegion(®ion); | |
| 49 mRegion.And(mRegion, region); | |
| 50 return NS_OK; | |
| 51 } | |
| 52 | |
| 53 NS_IMETHODIMP nsScriptableRegion::IntersectRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight) | |
| 54 { | |
| 55 mRegion.And(mRegion, nsIntRect(aX, aY, aWidth, aHeight)); | |
| 56 return NS_OK; | |
| 57 } | |
| 58 | |
| 59 NS_IMETHODIMP nsScriptableRegion::UnionRegion(nsIScriptableRegion *aRegion) | |
| 60 { | |
| 61 nsIntRegion region; | |
| 62 aRegion->GetRegion(®ion); | |
| 63 mRegion.Or(mRegion, region); | |
| 64 return NS_OK; | |
| 65 } | |
| 66 | |
| 67 NS_IMETHODIMP nsScriptableRegion::UnionRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight) | |
| 68 { | |
| 69 mRegion.Or(mRegion, nsIntRect(aX, aY, aWidth, aHeight)); | |
| 70 return NS_OK; | |
| 71 } | |
| 72 | |
| 73 NS_IMETHODIMP nsScriptableRegion::SubtractRegion(nsIScriptableRegion *aRegion) | |
| 74 { | |
| 75 nsIntRegion region; | |
| 76 aRegion->GetRegion(®ion); | |
| 77 mRegion.Sub(mRegion, region); | |
| 78 return NS_OK; | |
| 79 } | |
| 80 | |
| 81 NS_IMETHODIMP nsScriptableRegion::SubtractRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight) | |
| 82 { | |
| 83 mRegion.Sub(mRegion, nsIntRect(aX, aY, aWidth, aHeight)); | |
| 84 return NS_OK; | |
| 85 } | |
| 86 | |
| 87 NS_IMETHODIMP nsScriptableRegion::IsEmpty(bool *isEmpty) | |
| 88 { | |
| 89 *isEmpty = mRegion.IsEmpty(); | |
| 90 return NS_OK; | |
| 91 } | |
| 92 | |
| 93 NS_IMETHODIMP nsScriptableRegion::IsEqualRegion(nsIScriptableRegion *aRegion, bool *isEqual) | |
| 94 { | |
| 95 nsIntRegion region; | |
| 96 aRegion->GetRegion(®ion); | |
| 97 *isEqual = mRegion.IsEqual(region); | |
| 98 return NS_OK; | |
| 99 } | |
| 100 | |
| 101 NS_IMETHODIMP nsScriptableRegion::GetBoundingBox(int32_t *aX, int32_t *aY, int32_t *aWidth, int32_t *aHeight) | |
| 102 { | |
| 103 nsIntRect boundRect = mRegion.GetBounds(); | |
| 104 *aX = boundRect.x; | |
| 105 *aY = boundRect.y; | |
| 106 *aWidth = boundRect.width; | |
| 107 *aHeight = boundRect.height; | |
| 108 return NS_OK; | |
| 109 } | |
| 110 | |
| 111 NS_IMETHODIMP nsScriptableRegion::Offset(int32_t aXOffset, int32_t aYOffset) | |
| 112 { | |
| 113 mRegion.MoveBy(aXOffset, aYOffset); | |
| 114 return NS_OK; | |
| 115 } | |
| 116 | |
| 117 NS_IMETHODIMP nsScriptableRegion::ContainsRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight, bool *containsRect) | |
| 118 { | |
| 119 *containsRect = mRegion.Contains(nsIntRect(aX, aY, aWidth, aHeight)); | |
| 120 return NS_OK; | |
| 121 } | |
| 122 | |
| 123 | |
| 124 NS_IMETHODIMP nsScriptableRegion::GetRegion(nsIntRegion* outRgn) | |
| 125 { | |
| 126 *outRgn = mRegion; | |
| 127 return NS_OK; | |
| 128 } | |
| 129 | |
| 130 NS_IMETHODIMP nsScriptableRegion::GetRects(JSContext* aCx, JS::MutableHandle<JS::Value> aRects) | |
| 131 { | |
| 132 uint32_t numRects = mRegion.GetNumRects(); | |
| 133 | |
| 134 if (!numRects) { | |
| 135 aRects.setNull(); | |
| 136 return NS_OK; | |
| 137 } | |
| 138 | |
| 139 JS::Rooted<JSObject*> destArray(aCx, JS_NewArrayObject(aCx, numRects * 4)); | |
| 140 if (!destArray) { | |
| 141 return NS_ERROR_OUT_OF_MEMORY; | |
| 142 } | |
| 143 | |
| 144 aRects.setObject(*destArray); | |
| 145 | |
| 146 uint32_t n = 0; | |
| 147 nsIntRegionRectIterator iter(mRegion); | |
| 148 const nsIntRect *rect; | |
| 149 | |
| 150 while ((rect = iter.Next())) { | |
| 151 if (!JS_DefineElement(aCx, destArray, n, INT_TO_JSVAL(rect->x), nullptr, nullptr, JSPROP_ENUMERATE) || | |
| 152 !JS_DefineElement(aCx, destArray, n + 1, INT_TO_JSVAL(rect->y), nullptr, nullptr, JSPROP_ENUMERATE) || | |
| 153 !JS_DefineElement(aCx, destArray, n + 2, INT_TO_JSVAL(rect->width), nullptr, nullptr, JSPROP_ENUMERATE) || | |
| 154 !JS_DefineElement(aCx, destArray, n + 3, INT_TO_JSVAL(rect->height), nullptr, nullptr, JSPROP_ENUMERATE)) { | |
| 155 return NS_ERROR_FAILURE; | |
| 156 } | |
| 157 n += 4; | |
| 158 } | |
| 159 | |
| 160 return NS_OK; | |
| 161 } |
