image.cpp

/*
 * image.cpp
 *
 * Copyright (c) 2001, 2002, 2003 Frerich Raabe <raabe@kde.org>
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. For licensing and distribution details, check the
 * accompanying file 'COPYING'.
 */
#include "image.h"
#include "tools_p.h"
 
#include <tdeio/job.h>
#include <kurl.h>
 
#include <tqbuffer.h>
#include <tqdom.h>
#include <tqpixmap.h>
 
using namespace RSS;
 
struct Image::Private : public Shared
{
    Private() : height(31), width(88), pixmapBuffer(NULL), job(NULL)
        { }
 
    TQString title;
    KURL url;
    KURL link;
    TQString description;
    unsigned int height;
    unsigned int width;
    TQBuffer *pixmapBuffer;
    TDEIO::Job *job;
};
 
Image::Image() : TQObject(), d(new Private)
{
}
 
Image::Image(const Image &other) : TQObject(), d(0)
{
    *this = other;
}
 
Image::Image(const TQDomNode &node) : TQObject(), d(new Private)
{
    TQString elemText;
 
    if (!(elemText = extractNode(node, TQString::fromLatin1("title"))).isNull())
        d->title = elemText;
    if (!(elemText = extractNode(node, TQString::fromLatin1("url"))).isNull())
        d->url = elemText;
    if (!(elemText = extractNode(node, TQString::fromLatin1("link"))).isNull())
        d->link = elemText;
    if (!(elemText = extractNode(node, TQString::fromLatin1("description"))).isNull())
        d->description = elemText;
    if (!(elemText = extractNode(node, TQString::fromLatin1("height"))).isNull())
        d->height = elemText.toUInt();
    if (!(elemText = extractNode(node, TQString::fromLatin1("width"))).isNull())
        d->width = elemText.toUInt();
}
 
Image::~Image()
{
    if (d->deref())
        {
            delete d->pixmapBuffer;
            d->pixmapBuffer=0L;
            delete d;
        }
}
 
TQString Image::title() const
{
    return d->title;
}
 
const KURL &Image::url() const
{
    return d->url;
}
 
const KURL &Image::link() const
{
    return d->link;
}
 
TQString Image::description() const
{
    return d->description;
}
 
unsigned int Image::height() const
{
    return d->height;
}
 
unsigned int Image::width() const
{
    return d->width;
}
 
void Image::getPixmap()
{
    // Ignore subsequent calls if we didn't finish the previous download.
    if (d->pixmapBuffer)
        return;
 
    d->pixmapBuffer = new TQBuffer;
    d->pixmapBuffer->open(IO_WriteOnly);
 
    d->job = TDEIO::get(d->url, false, false);
    connect(d->job, TQ_SIGNAL(data(TDEIO::Job *, const TQByteArray &)),
            this, TQ_SLOT(slotData(TDEIO::Job *, const TQByteArray &)));
    connect(d->job, TQ_SIGNAL(result(TDEIO::Job *)), this, TQ_SLOT(slotResult(TDEIO::Job *)));
}
 
void Image::slotData(TDEIO::Job *, const TQByteArray &data)
{
    d->pixmapBuffer->writeBlock(data.data(), data.size());
}
 
void Image::slotResult(TDEIO::Job *job)
{
    TQPixmap pixmap;
    if (!job->error())
        pixmap = TQPixmap(d->pixmapBuffer->buffer());
    emit gotPixmap(pixmap);
 
    delete d->pixmapBuffer;
    d->pixmapBuffer = NULL;
}
 
void Image::abort()
{
    if (d->job)
    {
        d->job->kill(true);
        d->job = NULL;
    }
}
 
Image &Image::operator=(const Image &other)
{
    if (this != &other) {
        other.d->ref();
        if (d && d->deref())
            delete d;
        d = other.d;
    }
    return *this;
}
 
bool Image::operator==(const Image &other) const
{
    return d->title == other.title() &&
           d->url == other.url() &&
           d->description == other.description() &&
           d->height == other.height() &&
           d->width == other.width() &&
           d->link == other.link();
}
 
#include "image.moc"