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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
#include <QFile>
#include <QFileInfo>
#include <QByteArray>
#include <QImageReader>
#include <QList>
#include "scimgdataloader_qt.h"
ScImgDataLoader_QT::ScImgDataLoader_QT(void) : ScImgDataLoader()
{
initSupportedFormatList();
}
void ScImgDataLoader_QT::initSupportedFormatList(void)
{
m_supportedFormats.clear();
QList<QByteArray> fmtList = QImageReader::supportedImageFormats();
for (int i = 0; i < fmtList.count(); i++)
m_supportedFormats.append( fmtList[i].toLower() );
}
void ScImgDataLoader_QT::loadEmbeddedProfile(const QString& fn, int /*page*/)
{
m_embeddedProfile.resize(0);
m_profileComponents = 0;
}
bool ScImgDataLoader_QT::loadPicture(const QString& fn, int /*page*/, int /*res*/, bool /*thumbnail*/)
{
if (!QFile::exists(fn))
return false;
initialize();
if (m_image.load(fn))
{
m_imageInfoRecord.type = ImageTypeOther;
m_imageInfoRecord.exifDataValid = false;
float xres = m_image.dotsPerMeterX() * 0.0254;
float yres = m_image.dotsPerMeterY() * 0.0254;
int resInf = m_imageInfoRecord.lowResType;
m_image = m_image.convertToFormat(QImage::Format_ARGB32);
m_image.setDotsPerMeterX (qMax(2834, (int) (xres / 0.0254)));
m_image.setDotsPerMeterY (qMax(2834, (int) (yres / 0.0254)));
m_imageInfoRecord.colorspace = ColorSpaceRGB;
m_imageInfoRecord.xres = qMax(72, qRound(xres));
m_imageInfoRecord.yres = qMax(72, qRound(yres));
m_imageInfoRecord.lowResType = resInf;
m_imageInfoRecord.BBoxX = 0;
m_imageInfoRecord.BBoxH = m_image.height();
return true;
}
return false; //TODO: I think this should be false!
}
bool ScImgDataLoader_QT::preloadAlphaChannel(const QString& fn, int /*page*/, int res, bool& hasAlpha)
{
initialize();
hasAlpha = false;
QFileInfo fi = QFileInfo(fn);
if (!fi.exists())
return false;
QString ext = fi.suffix().toLower();
if ((ext == "jpg") || (ext == "jpeg"))
{
hasAlpha = false;
return true;
}
if (m_image.load(fn))
{
hasAlpha = m_image.hasAlphaChannel();
if (m_image.hasAlphaChannel())
m_image = m_image.convertToFormat(QImage::Format_ARGB32);
else
m_image = QImage(); // Discard data immediately
return true;
}
return false;
}
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