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/* vi: ts=8 sts=4 sw=4
* kate: space-indent on; indent-width 4; mixedindent off; indent-mode cstyle;
*
* This file is part of the KDE project, module kfile.
* Copyright (C) 2006 Luke Sandell <lasandell@gmail.com>
* (C) 2002 Carsten Pfeiffer <pfeiffer@kde.org>
* (C) 2000 Geert Jansen <jansen@kde.org>
* (C) 2000 Kurt Granroth <granroth@kde.org>
* (C) 1997 Christoph Neerfeld <chris@kde.org>
*
* This is free software; it comes under the GNU Library General
* Public License, version 2. See the file "COPYING.LIB" for the
* exact licensing terms.
*/
#include "kiconcanvas.h"
#include "kicondialog.h"
#include <config.h>
#include <kiconviewsearchline.h>
#include <kapplication.h>
#include <kdebug.h>
#include <klocale.h>
#include <kglobal.h>
#include <kstandarddirs.h>
#include <kiconloader.h>
#include <kimagefilepreview.h>
#include <kurldrag.h>
#include <kmultipledrag.h>
#include <qsortedlist.h>
#include <qimage.h>
#include <qpixmap.h>
#include <qtimer.h>
#include <qfileinfo.h>
#include <qdragobject.h>
#include <cmath>
#include <math.h>
#include <algorithm>
#ifdef HAVE_LIBART
#include <svgicons/ksvgiconengine.h>
#include <svgicons/ksvgiconpainter.h>
#endif
class KIconCanvasItem : public QIconViewItem
{
public:
KIconCanvasItem ( QIconView * parent, const QString & key, const QPixmap & pixmap )
: QIconViewItem(parent)
{
setText(QFileInfo(key).baseName());
setKey(key);
setPixmap(pixmap);
setDragEnabled(true);
setDropEnabled(false);
}
int compare(QIconViewItem *rhs) const
{
return QString::localeAwareCompare(text().lower(), rhs->text().lower());
}
};
class KIconCanvas::KIconCanvasPrivate
{
public:
KIconCanvasPrivate()
{
m_bLoading = false;
mSize = 0;
}
~KIconCanvasPrivate()
{
}
bool m_bLoading;
QString mSetCurrent;
int mSize;
#ifdef HAVE_LIBART
KSvgIconEngine mSvgEngine;
#endif
bool mStrictIconSize;
};
/*
* KIconCanvas: Iconview for the iconloader dialog.
*/
KIconCanvas::KIconCanvas(QWidget *parent, const char *name)
: KIconView(parent, name)
{
d = new KIconCanvasPrivate;
mpLoader = KGlobal::iconLoader();
mpTimer = new QTimer(this);
connect(mpTimer, SIGNAL(timeout()), SLOT(slotLoadFiles()));
connect(this, SIGNAL(currentChanged(QIconViewItem *)),
SLOT(slotCurrentChanged(QIconViewItem *)));
setAcceptDrops(false);
setShowToolTips(true);
setStrictIconSize(false);
}
KIconCanvas::~KIconCanvas()
{
delete mpTimer;
delete d;
}
void KIconCanvas::setIconLoader(KIconLoader *loader)
{
mpLoader = loader;
}
void KIconCanvas::loadIcon(const QString &name)
{
QImage img;
QString path = mpLoader->iconPath(name,-d->mSize);
// Use the extension as the format. Works for XPM and PNG, but not for SVG
QString ext = path.right(3).upper();
int maxSize = std::min(d->mSize, 60);
if (ext != "SVG" && ext != "VGZ")
img.load(path);
#ifdef HAVE_LIBART
else
if (d->mSvgEngine.load(maxSize, maxSize, path))
img = *d->mSvgEngine.painter()->image();
#endif
if (img.isNull())
return;
// For non-KDE icons
if (d->mStrictIconSize && (img.width() != d->mSize || img.height() != d->mSize))
return;
if (img.width() > maxSize || img.height() > maxSize)
{
if (img.width() > img.height()) {
int height = (int) ((float(maxSize) / img.width()) * img.height());
img = img.smoothScale(maxSize, height);
} else {
int width = (int) ((float(maxSize) / img.height()) * img.width());
img = img.smoothScale(width, maxSize);
}
}
QPixmap pm;
pm.convertFromImage(img);
(void) new KIconCanvasItem(this, name, pm);
}
void KIconCanvas::loadFiles(const QStringList& files)
{
clear();
mFiles = files;
emit startLoading(mFiles.count());
mpTimer->start(10, true); // #86680
d->m_bLoading = false;
}
void KIconCanvas::slotLoadFiles()
{
setResizeMode(Fixed);
QApplication::setOverrideCursor(waitCursor);
// disable updates to not trigger paint events when adding child items
setUpdatesEnabled( false );
d->m_bLoading = true;
int count;
QStringList::ConstIterator it;
QStringList::ConstIterator end(mFiles.end());
for (it=mFiles.begin(), count=0; it!=end; ++it, count++)
{
loadIcon(*it);
// Calling kapp->processEvents() makes the iconview flicker like hell
// (it's being repainted once for every new item), so we don't do this.
// Instead, we directly repaint the progress bar without going through
// the event-loop. We do that just once for every 10th item so that
// the progress bar doesn't flicker in turn. (pfeiffer)
// FIXME: Qt4 will have double buffering
if ( count % 10 == 0) {
emit progress(count);
}
if ( !d->m_bLoading ) // user clicked on a button that will load another set of icons
break;
}
// enable updates since we have to draw the whole view now
sort();
d->m_bLoading = false;
setUpdatesEnabled( true );
QApplication::restoreOverrideCursor();
emit finished();
setResizeMode(Adjust);
}
QString KIconCanvas::getCurrent() const
{
return currentItem() ? currentItem()->key() : QString::null;
}
void KIconCanvas::stopLoading()
{
d->m_bLoading = false;
}
void KIconCanvas::slotCurrentChanged(QIconViewItem *item)
{
emit nameChanged((item != 0L) ? item->text() : QString::null);
}
void KIconCanvas::setGroupOrSize( int groupOrSize )
{
d->mSize = ((int)groupOrSize >= 0) ?
mpLoader->currentSize((KIcon::Group)groupOrSize) :
-groupOrSize;
}
void KIconCanvas::setStrictIconSize( bool strictIconSize )
{
d->mStrictIconSize = strictIconSize;
}
QDragObject *KIconCanvas::dragObject()
{
// We use QImageDrag rather than KURLDrag so that the user can't drag an icon out of the theme!
// TODO: support SVG?
QPixmap *pixmap = currentItem()->pixmap();
QPoint pos = viewportToContents( viewport()->mapFromGlobal( QCursor::pos() ) );
QPoint hot;
hot.setX(pos.x() - currentItem()->pos().x() - (currentItem()->width() - pixmap->width()) / 2);
hot.setY(pos.y() - currentItem()->pos().y() - (currentItem()->height() - pixmap->height()) / 2);
QImageDrag *drag = new QImageDrag( pixmap->convertToImage(), this );
drag->setPixmap(*pixmap, hot);
return drag;
}
#include "kiconcanvas.moc"
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