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      1 /*
      2  * Copyright (C) 2008 Holger Hans Peter Freyther
      3  *
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "config.h"
     29 #include "StillImageQt.h"
     30 
     31 #include "ContextShadow.h"
     32 #include "GraphicsContext.h"
     33 #include "IntSize.h"
     34 
     35 #include <QPainter>
     36 
     37 namespace WebCore {
     38 
     39 StillImage::StillImage(const QPixmap& pixmap)
     40     : m_pixmap(new QPixmap(pixmap))
     41     , m_ownsPixmap(true)
     42 {}
     43 
     44 StillImage::StillImage(const QPixmap* pixmap)
     45     : m_pixmap(pixmap)
     46     , m_ownsPixmap(false)
     47 {}
     48 
     49 StillImage::~StillImage()
     50 {
     51     if (m_ownsPixmap)
     52         delete m_pixmap;
     53 }
     54 
     55 IntSize StillImage::size() const
     56 {
     57     return IntSize(m_pixmap->width(), m_pixmap->height());
     58 }
     59 
     60 NativeImagePtr StillImage::nativeImageForCurrentFrame()
     61 {
     62     return const_cast<NativeImagePtr>(m_pixmap);
     63 }
     64 
     65 void StillImage::draw(GraphicsContext* ctxt, const FloatRect& dst,
     66                       const FloatRect& src, ColorSpace, CompositeOperator op)
     67 {
     68     if (m_pixmap->isNull())
     69         return;
     70 
     71     FloatRect normalizedSrc = src.normalized();
     72     FloatRect normalizedDst = dst.normalized();
     73 
     74     CompositeOperator previousOperator = ctxt->compositeOperation();
     75     ctxt->setCompositeOperation(op);
     76 
     77     ContextShadow* shadow = ctxt->contextShadow();
     78     if (shadow->m_type != ContextShadow::NoShadow) {
     79         QPainter* shadowPainter = shadow->beginShadowLayer(ctxt, normalizedDst);
     80         if (shadowPainter) {
     81             shadowPainter->setOpacity(static_cast<qreal>(shadow->m_color.alpha()) / 255);
     82             shadowPainter->drawPixmap(normalizedDst, *m_pixmap, normalizedSrc);
     83             shadow->endShadowLayer(ctxt);
     84         }
     85     }
     86 
     87     ctxt->platformContext()->drawPixmap(normalizedDst, *m_pixmap, normalizedSrc);
     88     ctxt->setCompositeOperation(previousOperator);
     89 }
     90 
     91 }
     92