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Diffstat (limited to 'WebCore/platform/graphics/qt/ImageSourceQt.cpp')
| -rw-r--r-- | WebCore/platform/graphics/qt/ImageSourceQt.cpp | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/WebCore/platform/graphics/qt/ImageSourceQt.cpp b/WebCore/platform/graphics/qt/ImageSourceQt.cpp deleted file mode 100644 index 1d14f9d..0000000 --- a/WebCore/platform/graphics/qt/ImageSourceQt.cpp +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. - * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) - * - * 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 "ImageSource.h" -#include "ImageDecoderQt.h" -#include "SharedBuffer.h" - -#include <QBuffer> -#include <QImage> -#include <QImageReader> - -namespace WebCore { -static bool canHandleImage(const SharedBuffer& _data) -{ - // We need at least 4 bytes to figure out what kind of image we're dealing with. - if (_data.size() < 4) - return false; - - QByteArray data = QByteArray::fromRawData(_data.data(), _data.size()); - QBuffer buffer(&data); - if (!buffer.open(QBuffer::ReadOnly)) - return false; - - return !QImageReader::imageFormat(&buffer).isEmpty(); -} - -ImageDecoderQt* createDecoder(const SharedBuffer& data) { - if (!canHandleImage(data)) - return 0; - return new ImageDecoderQt(); -} - -ImageSource::ImageSource() - : m_decoder(0) -{ -} - -ImageSource::~ImageSource() -{ - delete m_decoder; -} - -bool ImageSource::initialized() const -{ - return m_decoder; -} - -void ImageSource::setData(SharedBuffer* data, bool allDataReceived) -{ - // Make the decoder by sniffing the bytes. - // This method will examine the data and instantiate an instance of the appropriate decoder plugin. - // If insufficient bytes are available to determine the image type, no decoder plugin will be - // made. - if (!m_decoder) - m_decoder = createDecoder(*data); - - if (!m_decoder) - return; - - m_decoder->setData(data->buffer(), allDataReceived); -} - -bool ImageSource::isSizeAvailable() -{ - if (!m_decoder) - return false; - - return m_decoder->isSizeAvailable(); -} - -IntSize ImageSource::size() const -{ - if (!m_decoder) - return IntSize(); - - return m_decoder->size(); -} - -IntSize ImageSource::frameSizeAtIndex(size_t) const -{ - return size(); -} - -int ImageSource::repetitionCount() -{ - if (!m_decoder) - return cAnimationNone; - - return m_decoder->repetitionCount(); -} - -size_t ImageSource::frameCount() const -{ - if (!m_decoder) - return 0; - - return m_decoder->frameCount(); -} - -NativeImagePtr ImageSource::createFrameAtIndex(size_t index) -{ - if (!m_decoder) - return 0; - - return m_decoder->imageAtIndex(index); -} - -float ImageSource::frameDurationAtIndex(size_t index) -{ - if (!m_decoder) - return 0; - - // Many annoying ads specify a 0 duration to make an image flash as quickly - // as possible. We follow WinIE's behavior and use a duration of 100 ms - // for any frames that specify a duration of <= 50 ms. See - // <http://bugs.webkit.org/show_bug.cgi?id=14413> or Radar 4051389 for - // more. - const float duration = m_decoder->duration(index) / 1000.0f; - return (duration < 0.051f) ? 0.100f : duration; -} - -bool ImageSource::frameHasAlphaAtIndex(size_t index) -{ - if (!m_decoder || !m_decoder->supportsAlpha()) - return false; - - const QPixmap* source = m_decoder->imageAtIndex( index); - if (!source) - return false; - - return source->hasAlphaChannel(); -} - -bool ImageSource::frameIsCompleteAtIndex(size_t index) -{ - return (m_decoder && m_decoder->imageAtIndex(index) != 0); -} - -void ImageSource::clear() -{ - delete m_decoder; - m_decoder = 0; -} - - -} - -// vim: ts=4 sw=4 et |