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/***************************************************************************
copyright : (C) 2003-2006 by Robby Stephenson
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#include "image.h"
#include "imagefactory.h"
#include "tellico_debug.h"
#include <kmdcodec.h>
#include <kpixmapio.h>
#include <kstaticdeleter.h>
#include <qbuffer.h>
#include <qregexp.h>
using Tellico::Data::Image;
using Tellico::Data::ImageInfo;
KPixmapIO* Image::s_pixmapIO = 0;
static KStaticDeleter<KPixmapIO> staticKPixmapIODeleter;
KPixmapIO* Image::io() {
if(!s_pixmapIO) {
staticKPixmapIODeleter.setObject(s_pixmapIO, new KPixmapIO());
}
return s_pixmapIO;
}
Image::Image() : QImage(), m_id(QString::null), m_linkOnly(false) {
}
// I'm using the MD5 hash as the id. I consider it rather unlikely that two images in one
// collection could ever have the same hash, and this lets me do a fast comparison of two images
// simply by comparing their ids.
Image::Image(const QString& filename_) : QImage(filename_), m_linkOnly(false) {
m_format = QImage::imageFormat(filename_);
calculateID();
}
Image::Image(const QImage& img_, const QString& format_) : QImage(img_), m_format(format_), m_linkOnly(false) {
calculateID();
}
Image::Image(const QByteArray& data_, const QString& format_, const QString& id_)
: QImage(data_), m_id(idClean(id_)), m_format(format_), m_linkOnly(false) {
if(isNull()) {
m_id = QString();
}
}
Image::~Image() {
}
QByteArray Image::byteArray() const {
return byteArray(*this, outputFormat(m_format));
}
bool Image::isNull() const {
// 1x1 images are considered null for Tellico. Amazon returns some like that.
return QImage::isNull() || (width() < 2 && height() < 2);
}
QPixmap Image::convertToPixmap() const {
return io()->convertToPixmap(*this);
}
QPixmap Image::convertToPixmap(int w_, int h_) const {
if(w_ < width() || h_ < height()) {
return io()->convertToPixmap(this->smoothScale(w_, h_, ScaleMin));
} else {
return io()->convertToPixmap(*this);
}
}
QCString Image::outputFormat(const QCString& inputFormat) {
QStrList list = QImage::outputFormats();
for(QStrListIterator it(list); it.current(); ++it) {
if(inputFormat == it.current()) {
return inputFormat;
}
}
// myDebug() << "Image::outputFormat() - writing " << inputFormat << " as PNG" << endl;
return "PNG";
}
QByteArray Image::byteArray(const QImage& img_, const QCString& outputFormat_) {
QByteArray ba;
QBuffer buf(ba);
buf.open(IO_WriteOnly);
QImageIO iio(&buf, outputFormat_);
iio.setImage(img_);
iio.write();
buf.close();
return ba;
}
QString Image::idClean(const QString& id_) {
static const QRegExp rx('[' + QRegExp::escape(QString::fromLatin1("/@<>#\"&%?={}|^~[]'`\\:+")) + ']');
QString clean = id_;
return clean.remove(rx);
}
void Image::setID(const QString& id_) {
m_id = id_;
}
void Image::calculateID() {
// the id will eventually be used as a filename
if(!isNull()) {
KMD5 md5(byteArray());
m_id = QString::fromLatin1(md5.hexDigest()) + QString::fromLatin1(".") + QString::fromLatin1(m_format).lower();
m_id = idClean(m_id);
}
}
/******************************************************/
ImageInfo::ImageInfo(const Image& img_)
: id(img_.id())
, format(img_.format())
, linkOnly(img_.linkOnly())
, m_width(img_.width())
, m_height(img_.height()) {
}
ImageInfo::ImageInfo(const QString& id_, const QCString& format_, int w_, int h_, bool l_)
: id(id_)
, format(format_)
, linkOnly(l_)
, m_width(w_)
, m_height(h_) {
}
int ImageInfo::width(bool loadIfNecessary) const {
if(m_width < 1 && loadIfNecessary) {
const Image& img = ImageFactory::imageById(id);
if(!img.isNull()) {
m_width = img.width();
m_height = img.height();
}
}
return m_width;
}
int ImageInfo::height(bool loadIfNecessary) const {
if(m_height < 1 && loadIfNecessary) {
const Image& img = ImageFactory::imageById(id);
if(!img.isNull()) {
m_width = img.width();
m_height = img.height();
}
}
return m_height;
}
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