| /* |
| * Copyright (C) 2005, 2006, 2007 Apple 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 "AffineTransform.h" |
| |
| #if PLATFORM(CG) |
| |
| #include "FloatConversion.h" |
| #include "FloatRect.h" |
| #include "IntRect.h" |
| |
| namespace WebCore { |
| |
| static const double deg2rad = 0.017453292519943295769; // pi/180 |
| |
| AffineTransform::AffineTransform() |
| { |
| m_transform = CGAffineTransformIdentity; |
| } |
| |
| AffineTransform::AffineTransform(double a, double b, double c, double d, double tx, double ty) |
| { |
| m_transform = CGAffineTransformMake(narrowPrecisionToCGFloat(a), |
| narrowPrecisionToCGFloat(b), |
| narrowPrecisionToCGFloat(c), |
| narrowPrecisionToCGFloat(d), |
| narrowPrecisionToCGFloat(tx), |
| narrowPrecisionToCGFloat(ty)); |
| } |
| |
| AffineTransform::AffineTransform(CGAffineTransform t) |
| { |
| m_transform = t; |
| } |
| |
| void AffineTransform::setMatrix(double a, double b, double c, double d, double tx, double ty) |
| { |
| m_transform = CGAffineTransformMake(narrowPrecisionToCGFloat(a), |
| narrowPrecisionToCGFloat(b), |
| narrowPrecisionToCGFloat(c), |
| narrowPrecisionToCGFloat(d), |
| narrowPrecisionToCGFloat(tx), |
| narrowPrecisionToCGFloat(ty)); |
| } |
| |
| void AffineTransform::map(double x, double y, double *x2, double *y2) const |
| { |
| CGPoint result = CGPointApplyAffineTransform(CGPointMake(narrowPrecisionToCGFloat(x), narrowPrecisionToCGFloat(y)), m_transform); |
| *x2 = result.x; |
| *y2 = result.y; |
| } |
| |
| IntRect AffineTransform::mapRect(const IntRect &rect) const |
| { |
| return enclosingIntRect(CGRectApplyAffineTransform(CGRect(rect), m_transform)); |
| } |
| |
| FloatRect AffineTransform::mapRect(const FloatRect &rect) const |
| { |
| return FloatRect(CGRectApplyAffineTransform(CGRect(rect), m_transform)); |
| } |
| |
| bool AffineTransform::isIdentity() const |
| { |
| return CGAffineTransformIsIdentity(m_transform); |
| } |
| |
| double AffineTransform::a() const |
| { |
| return m_transform.a; |
| } |
| |
| void AffineTransform::setA(double a) |
| { |
| m_transform.a = narrowPrecisionToCGFloat(a); |
| } |
| |
| double AffineTransform::b() const |
| { |
| return m_transform.b; |
| } |
| |
| void AffineTransform::setB(double b) |
| { |
| m_transform.b = narrowPrecisionToCGFloat(b); |
| } |
| |
| double AffineTransform::c() const |
| { |
| return m_transform.c; |
| } |
| |
| void AffineTransform::setC(double c) |
| { |
| m_transform.c = narrowPrecisionToCGFloat(c); |
| } |
| |
| double AffineTransform::d() const |
| { |
| return m_transform.d; |
| } |
| |
| void AffineTransform::setD(double d) |
| { |
| m_transform.d = narrowPrecisionToCGFloat(d); |
| } |
| |
| double AffineTransform::e() const |
| { |
| return m_transform.tx; |
| } |
| |
| void AffineTransform::setE(double e) |
| { |
| m_transform.tx = narrowPrecisionToCGFloat(e); |
| } |
| |
| double AffineTransform::f() const |
| { |
| return m_transform.ty; |
| } |
| |
| void AffineTransform::setF(double f) |
| { |
| m_transform.ty = narrowPrecisionToCGFloat(f); |
| } |
| |
| void AffineTransform::reset() |
| { |
| m_transform = CGAffineTransformIdentity; |
| } |
| |
| AffineTransform &AffineTransform::scale(double sx, double sy) |
| { |
| m_transform = CGAffineTransformScale(m_transform, narrowPrecisionToCGFloat(sx), narrowPrecisionToCGFloat(sy)); |
| return *this; |
| } |
| |
| AffineTransform &AffineTransform::rotate(double d) |
| { |
| m_transform = CGAffineTransformRotate(m_transform, narrowPrecisionToCGFloat(d * deg2rad)); |
| return *this; |
| } |
| |
| AffineTransform &AffineTransform::translate(double tx, double ty) |
| { |
| m_transform = CGAffineTransformTranslate(m_transform, narrowPrecisionToCGFloat(tx), narrowPrecisionToCGFloat(ty)); |
| return *this; |
| } |
| |
| AffineTransform &AffineTransform::shear(double sx, double sy) |
| { |
| CGAffineTransform shear = CGAffineTransformMake(1.0f, narrowPrecisionToCGFloat(sy), narrowPrecisionToCGFloat(sx), 1.0f, 0.0f, 0.0f); |
| m_transform = CGAffineTransformConcat(shear, m_transform); |
| return *this; |
| } |
| |
| double AffineTransform::det() const |
| { |
| return m_transform.a * m_transform.d - m_transform.b * m_transform.c; |
| } |
| |
| AffineTransform AffineTransform::inverse() const |
| { |
| if (isInvertible()) |
| return AffineTransform(CGAffineTransformInvert(m_transform)); |
| return AffineTransform(); |
| } |
| |
| AffineTransform::operator CGAffineTransform() const |
| { |
| return m_transform; |
| } |
| |
| bool AffineTransform::operator== (const AffineTransform &m2) const |
| { |
| return CGAffineTransformEqualToTransform(m_transform, CGAffineTransform(m2)); |
| } |
| |
| AffineTransform &AffineTransform::operator*= (const AffineTransform &m2) |
| { |
| m_transform = CGAffineTransformConcat(m_transform, CGAffineTransform(m2)); |
| return *this; |
| } |
| |
| AffineTransform AffineTransform::operator* (const AffineTransform &m2) |
| { |
| return CGAffineTransformConcat(m_transform, CGAffineTransform(m2)); |
| } |
| |
| } |
| |
| #endif // PLATFORM(CG) |