DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Line Code
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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Oracle Corporation code.
 *
 * The Initial Developer of the Original Code is Oracle Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Stuart Parmenter <pavlov@pavlov.net>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef GFX_RECT_H
#define GFX_RECT_H

#include "nsAlgorithm.h"
#include "gfxTypes.h"
#include "gfxPoint.h"
#include "gfxCore.h"
#include "nsDebug.h"
#include "mozilla/gfx/BaseMargin.h"
#include "mozilla/gfx/BaseRect.h"
#include "mozilla/Assertions.h"
#include "nsRect.h"

struct gfxMargin : public mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> {
  typedef mozilla::gfx::BaseMargin<gfxFloat, gfxMargin> Super;

  // Constructors
  gfxMargin() : Super() {}
  gfxMargin(const gfxMargin& aMargin) : Super(aMargin) {}
  gfxMargin(gfxFloat aLeft,  gfxFloat aTop, gfxFloat aRight, gfxFloat aBottom)
    : Super(aLeft, aTop, aRight, aBottom) {}
};

namespace mozilla {
    namespace css {
        enum Corner {
            // this order is important!
            eCornerTopLeft = 0,
            eCornerTopRight = 1,
            eCornerBottomRight = 2,
            eCornerBottomLeft = 3,
            eNumCorners = 4
        };
    }
}
#define NS_CORNER_TOP_LEFT mozilla::css::eCornerTopLeft
#define NS_CORNER_TOP_RIGHT mozilla::css::eCornerTopRight
#define NS_CORNER_BOTTOM_RIGHT mozilla::css::eCornerBottomRight
#define NS_CORNER_BOTTOM_LEFT mozilla::css::eCornerBottomLeft
#define NS_NUM_CORNERS mozilla::css::eNumCorners

#define NS_FOR_CSS_CORNERS(var_)                         \
    for (mozilla::css::Corner var_ = NS_CORNER_TOP_LEFT; \
         var_ <= NS_CORNER_BOTTOM_LEFT;                  \
         var_++)

static inline mozilla::css::Corner operator++(mozilla::css::Corner& corner, int) {
    NS_PRECONDITION(corner >= NS_CORNER_TOP_LEFT &&
                    corner < NS_NUM_CORNERS, "Out of range corner");
    corner = mozilla::css::Corner(corner + 1);
    return corner;
}

struct THEBES_API gfxRect :
    public mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> {
    typedef mozilla::gfx::BaseRect<gfxFloat, gfxRect, gfxPoint, gfxSize, gfxMargin> Super;

    gfxRect() : Super() {}
    gfxRect(const gfxPoint& aPos, const gfxSize& aSize) :
        Super(aPos, aSize) {}
    gfxRect(gfxFloat aX, gfxFloat aY, gfxFloat aWidth, gfxFloat aHeight) :
        Super(aX, aY, aWidth, aHeight) {}
    gfxRect(const nsIntRect& aRect) :
        Super(aRect.x, aRect.y, aRect.width, aRect.height) {}

    /**
     * Return true if all components of this rect are within
     * aEpsilon of integer coordinates, defined as
     *   |round(coord) - coord| <= |aEpsilon|
     * for x,y,width,height.
     */
    bool WithinEpsilonOfIntegerPixels(gfxFloat aEpsilon) const;

    gfxPoint AtCorner(mozilla::css::Corner corner) const {
        switch (corner) {
            case NS_CORNER_TOP_LEFT: return TopLeft();
            case NS_CORNER_TOP_RIGHT: return TopRight();
            case NS_CORNER_BOTTOM_RIGHT: return BottomRight();
            case NS_CORNER_BOTTOM_LEFT: return BottomLeft();
            default:
                NS_ERROR("Invalid corner!");
                break;
        }
        return gfxPoint(0.0, 0.0);
    }

    gfxPoint CCWCorner(mozilla::css::Side side) const {
        switch (side) {
            case NS_SIDE_TOP: return TopLeft();
            case NS_SIDE_RIGHT: return TopRight();
            case NS_SIDE_BOTTOM: return BottomRight();
            case NS_SIDE_LEFT: return BottomLeft();
        }
        MOZ_NOT_REACHED("Incomplet switch");
    }

    gfxPoint CWCorner(mozilla::css::Side side) const {
        switch (side) {
            case NS_SIDE_TOP: return TopRight();
            case NS_SIDE_RIGHT: return BottomRight();
            case NS_SIDE_BOTTOM: return BottomLeft();
            case NS_SIDE_LEFT: return TopLeft();
        }
        MOZ_NOT_REACHED("Incomplet switch");
    }

    /* Conditions this border to Cairo's max coordinate space.
     * The caller can check IsEmpty() after Condition() -- if it's TRUE,
     * the caller can possibly avoid doing any extra rendering.
     */
    void Condition();

    void Scale(gfxFloat k) {
        NS_ASSERTION(k >= 0.0, "Invalid (negative) scale factor");
        x *= k;
        y *= k;
        width *= k;
        height *= k;
    }

    void Scale(gfxFloat sx, gfxFloat sy) {
        NS_ASSERTION(sx >= 0.0, "Invalid (negative) scale factor");
        NS_ASSERTION(sy >= 0.0, "Invalid (negative) scale factor");
        x *= sx;
        y *= sy;
        width *= sx;
        height *= sy;
    }

    void ScaleInverse(gfxFloat k) {
        NS_ASSERTION(k > 0.0, "Invalid (negative) scale factor");
        x /= k;
        y /= k;
        width /= k;
        height /= k;
    }
};

struct THEBES_API gfxCornerSizes {
    gfxSize sizes[NS_NUM_CORNERS];

    gfxCornerSizes () { }

    gfxCornerSizes (gfxFloat v) {
        for (int i = 0; i < NS_NUM_CORNERS; i++)
            sizes[i].SizeTo(v, v);
    }

    gfxCornerSizes (gfxFloat tl, gfxFloat tr, gfxFloat br, gfxFloat bl) {
        sizes[NS_CORNER_TOP_LEFT].SizeTo(tl, tl);
        sizes[NS_CORNER_TOP_RIGHT].SizeTo(tr, tr);
        sizes[NS_CORNER_BOTTOM_RIGHT].SizeTo(br, br);
        sizes[NS_CORNER_BOTTOM_LEFT].SizeTo(bl, bl);
    }

    gfxCornerSizes (const gfxSize& tl, const gfxSize& tr, const gfxSize& br, const gfxSize& bl) {
        sizes[NS_CORNER_TOP_LEFT] = tl;
        sizes[NS_CORNER_TOP_RIGHT] = tr;
        sizes[NS_CORNER_BOTTOM_RIGHT] = br;
        sizes[NS_CORNER_BOTTOM_LEFT] = bl;
    }

    const gfxSize& operator[] (mozilla::css::Corner index) const {
        return sizes[index];
    }

    gfxSize& operator[] (mozilla::css::Corner index) {
        return sizes[index];
    }

    const gfxSize TopLeft() const { return sizes[NS_CORNER_TOP_LEFT]; }
    gfxSize& TopLeft() { return sizes[NS_CORNER_TOP_LEFT]; }

    const gfxSize TopRight() const { return sizes[NS_CORNER_TOP_RIGHT]; }
    gfxSize& TopRight() { return sizes[NS_CORNER_TOP_RIGHT]; }

    const gfxSize BottomLeft() const { return sizes[NS_CORNER_BOTTOM_LEFT]; }
    gfxSize& BottomLeft() { return sizes[NS_CORNER_BOTTOM_LEFT]; }

    const gfxSize BottomRight() const { return sizes[NS_CORNER_BOTTOM_RIGHT]; }
    gfxSize& BottomRight() { return sizes[NS_CORNER_BOTTOM_RIGHT]; }
};
#endif /* GFX_RECT_H */