1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/thebes/gfxRect.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,192 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_RECT_H
1.10 +#define GFX_RECT_H
1.11 +
1.12 +#include "gfxTypes.h"
1.13 +#include "gfxPoint.h"
1.14 +#include "nsDebug.h"
1.15 +#include "nsRect.h"
1.16 +#include "mozilla/gfx/BaseMargin.h"
1.17 +#include "mozilla/gfx/BaseRect.h"
1.18 +#include "mozilla/Assertions.h"
1.19 +
1.20 +struct gfxMargin : public mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> {
1.21 + typedef mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> Super;
1.22 +
1.23 + // Constructors
1.24 + gfxMargin() : Super() {}
1.25 + gfxMargin(const gfxMargin& aMargin) : Super(aMargin) {}
1.26 + gfxMargin(gfxFloat aTop, gfxFloat aRight, gfxFloat aBottom, gfxFloat aLeft)
1.27 + : Super(aTop, aRight, aBottom, aLeft) {}
1.28 +};
1.29 +
1.30 +namespace mozilla {
1.31 + namespace css {
1.32 + enum Corner {
1.33 + // this order is important!
1.34 + eCornerTopLeft = 0,
1.35 + eCornerTopRight = 1,
1.36 + eCornerBottomRight = 2,
1.37 + eCornerBottomLeft = 3,
1.38 + eNumCorners = 4
1.39 + };
1.40 + }
1.41 +}
1.42 +#define NS_CORNER_TOP_LEFT mozilla::css::eCornerTopLeft
1.43 +#define NS_CORNER_TOP_RIGHT mozilla::css::eCornerTopRight
1.44 +#define NS_CORNER_BOTTOM_RIGHT mozilla::css::eCornerBottomRight
1.45 +#define NS_CORNER_BOTTOM_LEFT mozilla::css::eCornerBottomLeft
1.46 +#define NS_NUM_CORNERS mozilla::css::eNumCorners
1.47 +
1.48 +#define NS_FOR_CSS_CORNERS(var_) \
1.49 + for (mozilla::css::Corner var_ = NS_CORNER_TOP_LEFT; \
1.50 + var_ <= NS_CORNER_BOTTOM_LEFT; \
1.51 + var_++)
1.52 +
1.53 +static inline mozilla::css::Corner operator++(mozilla::css::Corner& corner, int) {
1.54 + NS_PRECONDITION(corner >= NS_CORNER_TOP_LEFT &&
1.55 + corner < NS_NUM_CORNERS, "Out of range corner");
1.56 + corner = mozilla::css::Corner(corner + 1);
1.57 + return corner;
1.58 +}
1.59 +
1.60 +struct gfxRect :
1.61 + public mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> {
1.62 + typedef mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> Super;
1.63 +
1.64 + gfxRect() : Super() {}
1.65 + gfxRect(const gfxPoint& aPos, const gfxSize& aSize) :
1.66 + Super(aPos, aSize) {}
1.67 + gfxRect(gfxFloat aX, gfxFloat aY, gfxFloat aWidth, gfxFloat aHeight) :
1.68 + Super(aX, aY, aWidth, aHeight) {}
1.69 + gfxRect(const nsIntRect& aRect) :
1.70 + Super(aRect.x, aRect.y, aRect.width, aRect.height) {}
1.71 +
1.72 + /**
1.73 + * Return true if all components of this rect are within
1.74 + * aEpsilon of integer coordinates, defined as
1.75 + * |round(coord) - coord| <= |aEpsilon|
1.76 + * for x,y,width,height.
1.77 + */
1.78 + bool WithinEpsilonOfIntegerPixels(gfxFloat aEpsilon) const;
1.79 +
1.80 + gfxPoint AtCorner(mozilla::css::Corner corner) const {
1.81 + switch (corner) {
1.82 + case NS_CORNER_TOP_LEFT: return TopLeft();
1.83 + case NS_CORNER_TOP_RIGHT: return TopRight();
1.84 + case NS_CORNER_BOTTOM_RIGHT: return BottomRight();
1.85 + case NS_CORNER_BOTTOM_LEFT: return BottomLeft();
1.86 + default:
1.87 + NS_ERROR("Invalid corner!");
1.88 + break;
1.89 + }
1.90 + return gfxPoint(0.0, 0.0);
1.91 + }
1.92 +
1.93 + gfxPoint CCWCorner(mozilla::css::Side side) const {
1.94 + switch (side) {
1.95 + case NS_SIDE_TOP: return TopLeft();
1.96 + case NS_SIDE_RIGHT: return TopRight();
1.97 + case NS_SIDE_BOTTOM: return BottomRight();
1.98 + case NS_SIDE_LEFT: return BottomLeft();
1.99 + }
1.100 + MOZ_CRASH("Incomplete switch");
1.101 + }
1.102 +
1.103 + gfxPoint CWCorner(mozilla::css::Side side) const {
1.104 + switch (side) {
1.105 + case NS_SIDE_TOP: return TopRight();
1.106 + case NS_SIDE_RIGHT: return BottomRight();
1.107 + case NS_SIDE_BOTTOM: return BottomLeft();
1.108 + case NS_SIDE_LEFT: return TopLeft();
1.109 + }
1.110 + MOZ_CRASH("Incomplete switch");
1.111 + }
1.112 +
1.113 + /* Conditions this border to Cairo's max coordinate space.
1.114 + * The caller can check IsEmpty() after Condition() -- if it's TRUE,
1.115 + * the caller can possibly avoid doing any extra rendering.
1.116 + */
1.117 + void Condition();
1.118 +
1.119 + void Scale(gfxFloat k) {
1.120 + NS_ASSERTION(k >= 0.0, "Invalid (negative) scale factor");
1.121 + x *= k;
1.122 + y *= k;
1.123 + width *= k;
1.124 + height *= k;
1.125 + }
1.126 +
1.127 + void Scale(gfxFloat sx, gfxFloat sy) {
1.128 + NS_ASSERTION(sx >= 0.0, "Invalid (negative) scale factor");
1.129 + NS_ASSERTION(sy >= 0.0, "Invalid (negative) scale factor");
1.130 + x *= sx;
1.131 + y *= sy;
1.132 + width *= sx;
1.133 + height *= sy;
1.134 + }
1.135 +
1.136 + void ScaleInverse(gfxFloat k) {
1.137 + NS_ASSERTION(k > 0.0, "Invalid (negative) scale factor");
1.138 + x /= k;
1.139 + y /= k;
1.140 + width /= k;
1.141 + height /= k;
1.142 + }
1.143 +};
1.144 +
1.145 +struct gfxCornerSizes {
1.146 + gfxSize sizes[NS_NUM_CORNERS];
1.147 +
1.148 + gfxCornerSizes () { }
1.149 +
1.150 + gfxCornerSizes (gfxFloat v) {
1.151 + for (int i = 0; i < NS_NUM_CORNERS; i++)
1.152 + sizes[i].SizeTo(v, v);
1.153 + }
1.154 +
1.155 + gfxCornerSizes (gfxFloat tl, gfxFloat tr, gfxFloat br, gfxFloat bl) {
1.156 + sizes[NS_CORNER_TOP_LEFT].SizeTo(tl, tl);
1.157 + sizes[NS_CORNER_TOP_RIGHT].SizeTo(tr, tr);
1.158 + sizes[NS_CORNER_BOTTOM_RIGHT].SizeTo(br, br);
1.159 + sizes[NS_CORNER_BOTTOM_LEFT].SizeTo(bl, bl);
1.160 + }
1.161 +
1.162 + gfxCornerSizes (const gfxSize& tl, const gfxSize& tr, const gfxSize& br, const gfxSize& bl) {
1.163 + sizes[NS_CORNER_TOP_LEFT] = tl;
1.164 + sizes[NS_CORNER_TOP_RIGHT] = tr;
1.165 + sizes[NS_CORNER_BOTTOM_RIGHT] = br;
1.166 + sizes[NS_CORNER_BOTTOM_LEFT] = bl;
1.167 + }
1.168 +
1.169 + const gfxSize& operator[] (mozilla::css::Corner index) const {
1.170 + return sizes[index];
1.171 + }
1.172 +
1.173 + gfxSize& operator[] (mozilla::css::Corner index) {
1.174 + return sizes[index];
1.175 + }
1.176 +
1.177 + void Scale(gfxFloat aXScale, gfxFloat aYScale)
1.178 + {
1.179 + for (int i = 0; i < NS_NUM_CORNERS; i++)
1.180 + sizes[i].Scale(aXScale, aYScale);
1.181 + }
1.182 +
1.183 + const gfxSize TopLeft() const { return sizes[NS_CORNER_TOP_LEFT]; }
1.184 + gfxSize& TopLeft() { return sizes[NS_CORNER_TOP_LEFT]; }
1.185 +
1.186 + const gfxSize TopRight() const { return sizes[NS_CORNER_TOP_RIGHT]; }
1.187 + gfxSize& TopRight() { return sizes[NS_CORNER_TOP_RIGHT]; }
1.188 +
1.189 + const gfxSize BottomLeft() const { return sizes[NS_CORNER_BOTTOM_LEFT]; }
1.190 + gfxSize& BottomLeft() { return sizes[NS_CORNER_BOTTOM_LEFT]; }
1.191 +
1.192 + const gfxSize BottomRight() const { return sizes[NS_CORNER_BOTTOM_RIGHT]; }
1.193 + gfxSize& BottomRight() { return sizes[NS_CORNER_BOTTOM_RIGHT]; }
1.194 +};
1.195 +#endif /* GFX_RECT_H */
