Move geometry classes from core/platform/graphics to platform/geometry

Source/core/platform/graphics/FloatRect.cpp

-/*
- * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
- * Copyright (C) 2005 Nokia.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "core/platform/graphics/FloatRect.h"
-
-#include "core/platform/FloatConversion.h"
-#include "core/platform/graphics/IntRect.h"
-#include "core/platform/graphics/LayoutRect.h"
-#include "third_party/skia/include/core/SkRect.h"
-#include "wtf/MathExtras.h"
-
-#include <algorithm>
-#include <math.h>
-
-using std::max;
-using std::min;
-
-namespace WebCore {
-
-FloatRect::FloatRect(const IntRect& r) : m_location(r.location()), m_size(r.size())
-{
-}
-
-FloatRect::FloatRect(const LayoutRect& r) : m_location(r.location()), m_size(r.size())
-{
-}
-
-FloatRect::FloatRect(const SkRect& r) : m_location(r.fLeft, r.fTop), m_size(r.width(), r.height())
-{
-}
-
-FloatRect FloatRect::narrowPrecision(double x, double y, double width, double height)
-{
-    return FloatRect(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y), narrowPrecisionToFloat(width), narrowPrecisionToFloat(height));
-}
-
-bool FloatRect::isExpressibleAsIntRect() const
-{
-    return isWithinIntRange(x()) && isWithinIntRange(y())
-        && isWithinIntRange(width()) && isWithinIntRange(height())
-        && isWithinIntRange(maxX()) && isWithinIntRange(maxY());
-}
-
-bool FloatRect::intersects(const FloatRect& other) const
-{
-    // Checking emptiness handles negative widths as well as zero.
-    return !isEmpty() && !other.isEmpty()
-        && x() < other.maxX() && other.x() < maxX()
-        && y() < other.maxY() && other.y() < maxY();
-}
-
-bool FloatRect::contains(const FloatRect& other) const
-{
-    return x() <= other.x() && maxX() >= other.maxX()
-        && y() <= other.y() && maxY() >= other.maxY();
-}
-
-bool FloatRect::contains(const FloatPoint& point, ContainsMode containsMode) const
-{
-    if (containsMode == InsideOrOnStroke)
-        return contains(point.x(), point.y());
-    return x() < point.x() && maxX() > point.x() && y() < point.y() && maxY() > point.y();
-}
-
-void FloatRect::intersect(const FloatRect& other)
-{
-    float l = max(x(), other.x());
-    float t = max(y(), other.y());
-    float r = min(maxX(), other.maxX());
-    float b = min(maxY(), other.maxY());
-
-    // Return a clean empty rectangle for non-intersecting cases.
-    if (l >= r || t >= b) {
-        l = 0;
-        t = 0;
-        r = 0;
-        b = 0;
-    }
-
-    setLocationAndSizeFromEdges(l, t, r, b);
-}
-
-void FloatRect::unite(const FloatRect& other)
-{
-    // Handle empty special cases first.
-    if (other.isEmpty())
-        return;
-    if (isEmpty()) {
-        *this = other;
-        return;
-    }
-
-    uniteEvenIfEmpty(other);
-}
-
-void FloatRect::uniteEvenIfEmpty(const FloatRect& other)
-{
-    float minX = min(x(), other.x());
-    float minY = min(y(), other.y());
-    float maxX = max(this->maxX(), other.maxX());
-    float maxY = max(this->maxY(), other.maxY());
-
-    setLocationAndSizeFromEdges(minX, minY, maxX, maxY);
-}
-
-void FloatRect::uniteIfNonZero(const FloatRect& other)
-{
-    // Handle empty special cases first.
-    if (other.isZero())
-        return;
-    if (isZero()) {
-        *this = other;
-        return;
-    }
-
-    uniteEvenIfEmpty(other);
-}
-
-void FloatRect::extend(const FloatPoint& p)
-{
-    float minX = min(x(), p.x());
-    float minY = min(y(), p.y());
-    float maxX = max(this->maxX(), p.x());
-    float maxY = max(this->maxY(), p.y());
-
-    setLocationAndSizeFromEdges(minX, minY, maxX, maxY);
-}
-
-void FloatRect::scale(float sx, float sy)
-{
-    m_location.setX(x() * sx);
-    m_location.setY(y() * sy);
-    m_size.setWidth(width() * sx);
-    m_size.setHeight(height() * sy);
-}
-
-FloatRect unionRect(const Vector<FloatRect>& rects)
-{
-    FloatRect result;
-
-    size_t count = rects.size();
-    for (size_t i = 0; i < count; ++i)
-        result.unite(rects[i]);
-
-    return result;
-}
-
-void FloatRect::fitToPoints(const FloatPoint& p0, const FloatPoint& p1)
-{
-    float left = min(p0.x(), p1.x());
-    float top = min(p0.y(), p1.y());
-    float right = max(p0.x(), p1.x());
-    float bottom = max(p0.y(), p1.y());
-
-    setLocationAndSizeFromEdges(left, top, right, bottom);
-}
-
-namespace {
-// Helpers for 3- and 4-way max and min.
-
-template <typename T>
-T min3(const T& v1, const T& v2, const T& v3)
-{
-    return min(min(v1, v2), v3);
-}
-
-template <typename T>
-T max3(const T& v1, const T& v2, const T& v3)
-{
-    return max(max(v1, v2), v3);
-}
-
-template <typename T>
-T min4(const T& v1, const T& v2, const T& v3, const T& v4)
-{
-    return min(min(v1, v2), min(v3, v4));
-}
-
-template <typename T>
-T max4(const T& v1, const T& v2, const T& v3, const T& v4)
-{
-    return max(max(v1, v2), max(v3, v4));
-}
-
-} // anonymous namespace
-
-void FloatRect::fitToPoints(const FloatPoint& p0, const FloatPoint& p1, const FloatPoint& p2)
-{
-    float left = min3(p0.x(), p1.x(), p2.x());
-    float top = min3(p0.y(), p1.y(), p2.y());
-    float right = max3(p0.x(), p1.x(), p2.x());
-    float bottom = max3(p0.y(), p1.y(), p2.y());
-
-    setLocationAndSizeFromEdges(left, top, right, bottom);
-}
-
-void FloatRect::fitToPoints(const FloatPoint& p0, const FloatPoint& p1, const FloatPoint& p2, const FloatPoint& p3)
-{
-    float left = min4(p0.x(), p1.x(), p2.x(), p3.x());
-    float top = min4(p0.y(), p1.y(), p2.y(), p3.y());
-    float right = max4(p0.x(), p1.x(), p2.x(), p3.x());
-    float bottom = max4(p0.y(), p1.y(), p2.y(), p3.y());
-
-    setLocationAndSizeFromEdges(left, top, right, bottom);
-}
-
-FloatRect::operator SkRect() const
-{
-    SkRect rect = { x(), y(), maxX(), maxY() };
-    return rect;
-}
-
-IntRect enclosingIntRect(const FloatRect& rect)
-{
-    IntPoint location = flooredIntPoint(rect.minXMinYCorner());
-    IntPoint maxPoint = ceiledIntPoint(rect.maxXMaxYCorner());
-
-    return IntRect(location, maxPoint - location);
-}
-
-IntRect enclosedIntRect(const FloatRect& rect)
-{
-    IntPoint location = ceiledIntPoint(rect.minXMinYCorner());
-    IntPoint maxPoint = flooredIntPoint(rect.maxXMaxYCorner());
-    IntSize size = maxPoint - location;
-    size.clampNegativeToZero();
-
-    return IntRect(location, size);
-}
-
-IntRect roundedIntRect(const FloatRect& rect)
-{
-    return IntRect(roundedIntPoint(rect.location()), roundedIntSize(rect.size()));
-}
-
-FloatRect mapRect(const FloatRect& r, const FloatRect& srcRect, const FloatRect& destRect)
-{
-    if (srcRect.width() == 0 || srcRect.height() == 0)
-        return FloatRect();
-
-    float widthScale = destRect.width() / srcRect.width();
-    float heightScale = destRect.height() / srcRect.height();
-    return FloatRect(destRect.x() + (r.x() - srcRect.x()) * widthScale,
-                     destRect.y() + (r.y() - srcRect.y()) * heightScale,
-                     r.width() * widthScale, r.height() * heightScale);
-}
-
-}