PathCG.cpp   [plain text]

/*
 * Copyright (C) 2003, 2006 Apple Computer, Inc.  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 "Path.h"

#include "FloatRect.h"
#include <CoreGraphics/CoreGraphics.h>

namespace WebCore {

Path::Path()
    : m_path(CGPathCreateMutable())
{
}

Path::~Path()
{
    CGPathRelease(m_path);
}

Path::Path(const Path& other)
    : m_path(CGPathCreateMutableCopy(other.m_path))
{
}

Path& Path::operator=(const Path& other)
{
    CGMutablePathRef path = CGPathCreateMutableCopy(other.m_path);
    CGPathRelease(m_path);
    m_path = path;
    return *this;
}

bool Path::contains(const FloatPoint& point) const
{
    return CGPathContainsPoint(m_path, 0, point, false);
}

void Path::translate(const FloatSize& size)
{
    CGAffineTransform translation = CGAffineTransformMake(1, 0, 0, 1, size.width(), size.height());
    CGMutablePathRef newPath = CGPathCreateMutable();
    CGPathAddPath(newPath, &translation, m_path);
    CGPathRelease(m_path);
    m_path = newPath;
}

FloatRect Path::boundingRect() const
{
    return CGPathGetBoundingBox(m_path);
}

void Path::moveTo(const FloatPoint& point)
{
    CGPathMoveToPoint(m_path, 0, point.x(), point.y());
}

void Path::addLineTo(const FloatPoint& p)
{
    CGPathAddLineToPoint(m_path, 0, p.x(), p.y());
}

void Path::addQuadCurveTo(const FloatPoint& cp, const FloatPoint& p)
{
    CGPathAddQuadCurveToPoint(m_path, 0, cp.x(), cp.y(), p.x(), p.y());
}

void Path::addBezierCurveTo(const FloatPoint& cp1, const FloatPoint& cp2, const FloatPoint& p)
{
    CGPathAddCurveToPoint(m_path, 0, cp1.x(), cp1.y(), cp2.x(), cp2.y(), p.x(), p.y());
}

void Path::addArcTo(const FloatPoint& p1, const FloatPoint& p2, float radius)
{
    CGPathAddArcToPoint(m_path, 0, p1.x(), p1.y(), p2.x(), p2.y(), radius);
}

void Path::closeSubpath()
{
    CGPathCloseSubpath(m_path);
}

void Path::addArc(const FloatPoint& p, float r, float sa, float ea, bool clockwise)
{
    CGPathAddArc(m_path, 0, p.x(), p.y(), r, sa, ea, clockwise);
}

void Path::addRect(const FloatRect& r)
{
    CGPathAddRect(m_path, 0, r);
}

void Path::addEllipse(const FloatRect& r)
{
    CGPathAddEllipseInRect(m_path, 0, r);
}

void Path::clear()
{
    CGPathRelease(m_path);
    m_path = CGPathCreateMutable();
}

}