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Diffstat (limited to 'WebCore/platform/graphics/FloatRect.cpp')
-rw-r--r-- | WebCore/platform/graphics/FloatRect.cpp | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/WebCore/platform/graphics/FloatRect.cpp b/WebCore/platform/graphics/FloatRect.cpp deleted file mode 100644 index 0d8a24e..0000000 --- a/WebCore/platform/graphics/FloatRect.cpp +++ /dev/null @@ -1,201 +0,0 @@ -/* - * 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 "FloatRect.h" - -#include "FloatConversion.h" -#include "IntRect.h" -#include <algorithm> -#include <limits> -#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::narrowPrecision(double x, double y, double width, double height) -{ - return FloatRect(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y), narrowPrecisionToFloat(width), narrowPrecisionToFloat(height)); -} - -bool FloatRect::intersects(const FloatRect& other) const -{ - // Checking emptiness handles negative widths as well as zero. - return !isEmpty() && !other.isEmpty() - && x() < other.right() && other.x() < right() - && y() < other.bottom() && other.y() < bottom(); -} - -bool FloatRect::contains(const FloatRect& other) const -{ - return x() <= other.x() && right() >= other.right() - && y() <= other.y() && bottom() >= other.bottom(); -} - -void FloatRect::intersect(const FloatRect& other) -{ - float l = max(x(), other.x()); - float t = max(y(), other.y()); - float r = min(right(), other.right()); - float b = min(bottom(), other.bottom()); - - // 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; - } - - float l = min(x(), other.x()); - float t = min(y(), other.y()); - float r = max(right(), other.right()); - float b = max(bottom(), other.bottom()); - - setLocationAndSizeFromEdges(l, t, r, b); -} - -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); -} - -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); -} - -static inline int safeFloatToInt(float x) -{ - static const int s_intMax = std::numeric_limits<int>::max(); - static const int s_intMin = std::numeric_limits<int>::min(); - - if (x >= static_cast<float>(s_intMax)) - return s_intMax; - if (x < static_cast<float>(s_intMin)) - return s_intMin; - return static_cast<int>(x); -} - -IntRect enclosingIntRect(const FloatRect& rect) -{ - float left = floorf(rect.x()); - float top = floorf(rect.y()); - float width = ceilf(rect.right()) - left; - float height = ceilf(rect.bottom()) - top; - return IntRect(safeFloatToInt(left), safeFloatToInt(top), - safeFloatToInt(width), safeFloatToInt(height)); -} - -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); -} - -} |