| /* |
| * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved. |
| * Copyright (C) 2007 Alp Toker <alp@atoker.com> |
| * |
| * 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 "Gradient.h" |
| |
| #include "CSSParser.h" |
| #include "GraphicsContext.h" |
| |
| #include <QGradient> |
| #include <QPainter> |
| |
| namespace WebCore { |
| |
| void Gradient::platformDestroy() |
| { |
| delete m_gradient; |
| m_gradient = 0; |
| } |
| |
| QGradient* Gradient::platformGradient() |
| { |
| if (m_gradient) |
| return m_gradient; |
| |
| if (m_radial) |
| m_gradient = new QRadialGradient(m_p1.x(), m_p1.y(), m_r1, m_p0.x(), m_p0.y()); |
| else |
| m_gradient = new QLinearGradient(m_p0.x(), m_p0.y(), m_p1.x(), m_p1.y()); |
| |
| QColor stopColor; |
| Vector<ColorStop>::iterator stopIterator = m_stops.begin(); |
| qreal lastStop(0.0); |
| const qreal lastStopDiff = 0.0000001; |
| while (stopIterator != m_stops.end()) { |
| stopColor.setRgbF(stopIterator->red, stopIterator->green, stopIterator->blue, stopIterator->alpha); |
| if (qFuzzyCompare(lastStop, qreal(stopIterator->stop))) |
| lastStop = stopIterator->stop + lastStopDiff; |
| else |
| lastStop = stopIterator->stop; |
| if (m_radial && m_r0) |
| lastStop = m_r0 / m_r1 + lastStop * (1.0f - m_r0 / m_r1); |
| m_gradient->setColorAt(lastStop, stopColor); |
| ++stopIterator; |
| } |
| |
| switch (m_spreadMethod) { |
| case SpreadMethodPad: |
| m_gradient->setSpread(QGradient::PadSpread); |
| break; |
| case SpreadMethodReflect: |
| m_gradient->setSpread(QGradient::ReflectSpread); |
| break; |
| case SpreadMethodRepeat: |
| m_gradient->setSpread(QGradient::RepeatSpread); |
| break; |
| } |
| |
| return m_gradient; |
| } |
| |
| void Gradient::fill(GraphicsContext* context, const FloatRect& rect) |
| { |
| context->platformContext()->fillRect(rect, *platformGradient()); |
| } |
| |
| } //namespace |