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tdebase/libkonq/konq_iconviewwidget.cc

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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
/* This file is part of the KDE projects
Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
Copyright (C) 2000 - 2005 David Faure <faure@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "konq_iconviewwidget.h"
#include "konq_operations.h"
#include "konq_undo.h"
#include "konq_sound.h"
#include "konq_filetip.h"
#include <qclipboard.h>
#include <qlayout.h>
#include <qtimer.h>
#include <qpainter.h>
#include <qtooltip.h>
#include <qlabel.h>
#include <qmovie.h>
#include <qregexp.h>
#include <qcursor.h>
#include <kapplication.h>
#include <kdebug.h>
#include <kio/previewjob.h>
#include <kfileivi.h>
#include <konq_settings.h>
#include <konq_drag.h>
#include <kglobalsettings.h>
#include <kpropertiesdialog.h>
#include <kipc.h>
#include <kicontheme.h>
#include <kiconeffect.h>
#include <kurldrag.h>
#include <kstandarddirs.h>
#include <kprotocolinfo.h>
#include <ktrader.h>
#include <assert.h>
#include <unistd.h>
#include <klocale.h>
struct KonqIconViewWidgetPrivate
{
KonqIconViewWidgetPrivate() {
pActiveItem = 0;
bSoundPreviews = false;
pSoundItem = 0;
bSoundItemClicked = false;
pSoundPlayer = 0;
pSoundTimer = 0;
pPreviewJob = 0;
bAllowSetWallpaper = false;
doAnimations = true;
m_movie = 0L;
m_movieBlocked = 0;
pFileTip = 0;
pActivateDoubleClick = 0L;
bCaseInsensitive = true;
pPreviewMimeTypes = 0L;
bProgramsURLdrag = false;
}
~KonqIconViewWidgetPrivate() {
delete pSoundPlayer;
delete pSoundTimer;
delete m_movie;
delete pFileTip;
delete pActivateDoubleClick;
delete pPreviewMimeTypes;
//delete pPreviewJob; done by stopImagePreview
}
KFileIVI *pActiveItem;
// Sound preview
KFileIVI *pSoundItem;
KonqSoundPlayer *pSoundPlayer;
QTimer *pSoundTimer;
bool bSoundPreviews;
bool bSoundItemClicked;
bool bAllowSetWallpaper;
bool bCaseInsensitive;
bool bBoostPreview;
// Animated icons support
bool doAnimations;
QMovie* m_movie;
int m_movieBlocked;
QString movieFileName;
KIO::PreviewJob *pPreviewJob;
KonqFileTip* pFileTip;
QStringList previewSettings;
bool renameItem;
bool firstClick;
bool releaseMouseEvent;
QPoint mousePos;
int mouseState;
QTimer *pActivateDoubleClick;
QStringList* pPreviewMimeTypes;
bool bProgramsURLdrag;
};
KonqIconViewWidget::KonqIconViewWidget( QWidget * parent, const char * name, WFlags f, bool kdesktop )
: KIconView( parent, name, f ),
m_rootItem( 0L ), m_size( 0 ) /* default is DesktopIcon size */,
m_bDesktop( kdesktop ),
m_bSetGridX( !kdesktop ) /* No line breaking on the desktop */
{
d = new KonqIconViewWidgetPrivate;
connect( this, SIGNAL( dropped( QDropEvent *, const QValueList<QIconDragItem> & ) ),
this, SLOT( slotDropped( QDropEvent*, const QValueList<QIconDragItem> & ) ) );
connect( this, SIGNAL( selectionChanged() ),
this, SLOT( slotSelectionChanged() ) );
kapp->addKipcEventMask( KIPC::IconChanged );
connect( kapp, SIGNAL(iconChanged(int)), SLOT(slotIconChanged(int)) );
connect( this, SIGNAL(onItem(QIconViewItem *)), SLOT(slotOnItem(QIconViewItem *)) );
connect( this, SIGNAL(onViewport()), SLOT(slotOnViewport()) );
connect( this, SIGNAL(itemRenamed(QIconViewItem *, const QString &)), SLOT(slotItemRenamed(QIconViewItem *, const QString &)) );
m_pSettings = KonqFMSettings::settings(); // already needed in setItemTextPos(), calculateGridX()
d->bBoostPreview = boostPreview();
// hardcoded settings
setSelectionMode( QIconView::Extended );
setItemTextPos( QIconView::Bottom );
d->releaseMouseEvent = false;
d->pFileTip = new KonqFileTip(this);
d->firstClick = false;
calculateGridX();
setAutoArrange( true );
setSorting( true, sortDirection() );
readAnimatedIconsConfig();
m_bSortDirsFirst = true;
m_bMousePressed = false;
m_LineupMode = LineupBoth;
// emit our signals
slotSelectionChanged();
m_iconPositionGroupPrefix = QString::fromLatin1( "IconPosition::" );
KonqUndoManager::incRef();
}
KonqIconViewWidget::~KonqIconViewWidget()
{
stopImagePreview();
KonqUndoManager::decRef();
delete d;
}
bool KonqIconViewWidget::maySetWallpaper()
{
return d->bAllowSetWallpaper;
}
void KonqIconViewWidget::setMaySetWallpaper(bool b)
{
d->bAllowSetWallpaper = b;
}
void KonqIconViewWidget::focusOutEvent( QFocusEvent * ev )
{
// We can't possibly have the mouse pressed and still lose focus.
// Well, we can, but when we regain focus we should assume the mouse is
// not down anymore or the slotOnItem code will break with highlighting!
m_bMousePressed = false;
// This will ensure that tooltips don't pop up and the mouseover icon
// effect will go away if the mouse goes out of the view without
// first moving into an empty portion of the view
// Fixes part of #86968, and #85204
// Matt Newell 2004-09-24
slotOnViewport();
KIconView::focusOutEvent( ev );
}
void KonqIconViewWidget::slotItemRenamed(QIconViewItem *item, const QString &name)
{
kdDebug(1203) << "KonqIconViewWidget::slotItemRenamed" << endl;
KFileIVI *viewItem = static_cast<KFileIVI *>(item);
KFileItem *fileItem = viewItem->item();
// The correct behavior is to show the old name until the rename has successfully
// completed. Unfortunately, KIconView forces us to allow the text to be changed
// before we try the rename, so set it back to the pre-rename state.
viewItem->setText( fileItem->text() );
kdDebug(1203)<<" fileItem->text() ;"<<fileItem->text()<<endl;
// Don't do anything if the user renamed to a blank name.
if( !name.isEmpty() )
{
// Actually attempt the rename. If it succeeds, KDirLister will update the name.
KURL oldurl( fileItem->url() );
KURL newurl( oldurl );
newurl.setPath( newurl.directory(false) + KIO::encodeFileName( name ) );
kdDebug(1203)<<" newurl :"<<newurl<<endl;
// We use url()+name so that it also works if the name is a relative path (#51176)
KonqOperations::rename( this, oldurl, newurl );
}
}
void KonqIconViewWidget::slotIconChanged( int group )
{
if (group != KIcon::Desktop)
return;
int size = m_size;
if ( m_size == 0 )
m_size = -1; // little trick to force grid change in setIcons
setIcons( size ); // force re-determining all icons
readAnimatedIconsConfig();
}
void KonqIconViewWidget::readAnimatedIconsConfig()
{
KConfigGroup cfgGroup( KGlobal::config(), "DesktopIcons" );
d->doAnimations = cfgGroup.readBoolEntry( "Animated", true /*default*/ );
}
void KonqIconViewWidget::slotOnItem( QIconViewItem *_item )
{
KFileIVI* item = static_cast<KFileIVI *>( _item );
// Reset icon of previous item
if( d->pActiveItem != 0L && d->pActiveItem != item )
{
if ( d->m_movie && d->pActiveItem->isAnimated() )
{
d->m_movie->pause(); // we'll see below what we do with it
d->pActiveItem->setAnimated( false );
d->pActiveItem->refreshIcon( true );
}
else {
d->pActiveItem->setActive( false );
}
d->pActiveItem = 0L;
d->pFileTip->setItem( 0L );
}
// Stop sound
if (d->pSoundPlayer != 0 && item != d->pSoundItem)
{
d->pSoundPlayer->stop();
d->pSoundItem = 0;
if (d->pSoundTimer && d->pSoundTimer->isActive())
d->pSoundTimer->stop();
}
if ( !m_bMousePressed )
{
if( item != d->pActiveItem )
{
d->pActiveItem = item;
d->pFileTip->setItem( d->pActiveItem->item(),
item->rect(),
item->pixmap() );
if ( d->doAnimations && d->pActiveItem && d->pActiveItem->hasAnimation() )
{
//kdDebug(1203) << "Playing animation for: " << d->pActiveItem->mouseOverAnimation() << endl;
// Check if cached movie can be used
#if 0 // Qt-mng bug, reusing the movie doesn't work currently.
if ( d->m_movie && d->movieFileName == d->pActiveItem->mouseOverAnimation() )
{
d->pActiveItem->setAnimated( true );
if (d->m_movieBlocked) {
kdDebug(1203) << "onitem, but blocked" << endl;
d->m_movie->pause();
}
else {
kdDebug(1203) << "we go ahead.." << endl;
d->m_movieBlocked++;
QTimer::singleShot(300, this, SLOT(slotReenableAnimation()));
d->m_movie->restart();
d->m_movie->unpause();
}
}
else
#endif
{
QMovie movie = KGlobal::iconLoader()->loadMovie( d->pActiveItem->mouseOverAnimation(), KIcon::Desktop, d->pActiveItem->iconSize() );
if ( !movie.isNull() )
{
delete d->m_movie;
d->m_movie = new QMovie( movie ); // shallow copy, don't worry
// Fix alpha-channel - currently only if no background pixmap,
// the bg pixmap case requires to uncomment the code at qmovie.cpp:404
const QPixmap* pm = backgroundPixmap();
bool hasPixmap = pm && !pm->isNull();
if ( !hasPixmap ) {
pm = viewport()->backgroundPixmap();
hasPixmap = pm && !pm->isNull();
}
if (!hasPixmap && backgroundMode() != NoBackground)
d->m_movie->setBackgroundColor( viewport()->backgroundColor() );
d->m_movie->connectUpdate( this, SLOT( slotMovieUpdate(const QRect &) ) );
d->m_movie->connectStatus( this, SLOT( slotMovieStatus(int) ) );
d->movieFileName = d->pActiveItem->mouseOverAnimation();
d->pActiveItem->setAnimated( true );
}
else
{
d->pActiveItem->setAnimated( false );
if (d->m_movie)
d->m_movie->pause();
// No movie available, remember it
d->pActiveItem->setMouseOverAnimation( QString::null );
}
}
} // animations
// Only do the normal "mouseover" effect if no animation is in use
if (d->pActiveItem && !d->pActiveItem->isAnimated())
{
d->pActiveItem->setActive( true );
}
}
else // No change in current item
{
// No effect. If we want to underline on hover, we should
// force the IVI to repaint here, though!
d->pActiveItem = 0L;
d->pFileTip->setItem( 0L );
}
} // bMousePressed
else
{
// All features disabled during mouse clicking, e.g. rectangular
// selection
d->pActiveItem = 0L;
d->pFileTip->setItem( 0L );
}
// ## shouldn't this be disabled during rectangular selection too ?
if (d->bSoundPreviews && d->pSoundPlayer &&
d->pSoundPlayer->mimeTypes().contains(
item->item()->mimetype())
&& KGlobalSettings::showFilePreview(item->item()->url())
&& topLevelWidget() == kapp->activeWindow())
{
d->pSoundItem = item;
d->bSoundItemClicked = false;
if (!d->pSoundTimer)
{
d->pSoundTimer = new QTimer(this);
connect(d->pSoundTimer, SIGNAL(timeout()), SLOT(slotStartSoundPreview()));
}
if (d->pSoundTimer->isActive())
d->pSoundTimer->stop();
d->pSoundTimer->start(500, true);
}
else
{
if (d->pSoundPlayer)
d->pSoundPlayer->stop();
d->pSoundItem = 0;
if (d->pSoundTimer && d->pSoundTimer->isActive())
d->pSoundTimer->stop();
}
}
void KonqIconViewWidget::slotOnViewport()
{
d->pFileTip->setItem( 0L );
if (d->pSoundPlayer)
d->pSoundPlayer->stop();
d->pSoundItem = 0;
if (d->pSoundTimer && d->pSoundTimer->isActive())
d->pSoundTimer->stop();
if (d->pActiveItem == 0L)
return;
if ( d->doAnimations && d->m_movie && d->pActiveItem->isAnimated() )
{
d->pActiveItem->setAnimated( false );
#if 0
// Aborting before the end of the animation ?
if (d->m_movie->running()) {
d->m_movie->pause();
d->m_movieBlocked++;
kdDebug(1203) << "on viewport, blocking" << endl;
QTimer::singleShot(300, this, SLOT(slotReenableAnimation()));
}
#endif
d->pActiveItem->refreshIcon( true );
Q_ASSERT( d->pActiveItem->state() == KIcon::DefaultState );
//delete d->m_movie;
//d->m_movie = 0L;
// TODO a timer to delete the movie after some time if unused?
}
else
{
d->pActiveItem->setActive( false );
}
d->pActiveItem = 0L;
}
void KonqIconViewWidget::slotStartSoundPreview()
{
if (!d->pSoundItem || d->bSoundItemClicked)
return;
d->pSoundPlayer->play(d->pSoundItem->item()->url().url());
}
void KonqIconViewWidget::slotPreview(const KFileItem *item, const QPixmap &pix)
{
// ### slow. Idea: move KonqKfmIconView's m_itemDict into this class
for (QIconViewItem *it = firstItem(); it; it = it->nextItem())
{
KFileIVI* current = static_cast<KFileIVI *>(it);
if (current->item() == item)
{
if (item->overlays() & KIcon::HiddenOverlay) {
QPixmap p(pix);
KIconEffect::semiTransparent(p);
current->setThumbnailPixmap(p);
} else {
current->setThumbnailPixmap(pix);
}
break;
}
}
}
void KonqIconViewWidget::slotPreviewResult()
{
d->pPreviewJob = 0;
emit imagePreviewFinished();
}
void KonqIconViewWidget::slotToolTipPreview(const KFileItem* , const QPixmap &)
{
// unused - remove for KDE4
}
void KonqIconViewWidget::slotToolTipPreviewResult()
{
// unused - remove for KDE4
}
void KonqIconViewWidget::slotMovieUpdate( const QRect& rect )
{
//kdDebug(1203) << "KonqIconViewWidget::slotMovieUpdate " << rect.x() << "," << rect.y() << " " << rect.width() << "x" << rect.height() << endl;
Q_ASSERT( d );
Q_ASSERT( d->m_movie );
// seems stopAnimation triggers one last update
if ( d->pActiveItem && d->m_movie && d->pActiveItem->isAnimated() ) {
const QPixmap &frame = d->m_movie->framePixmap();
// This can happen if the icon was scaled to the desired size, so KIconLoader
// will happily return a movie with different dimensions than the icon
int iconSize=d->pActiveItem->iconSize();
if (iconSize==0) iconSize = KGlobal::iconLoader()->currentSize( KIcon::Desktop );
if ( frame.width() != iconSize || frame.height() != iconSize ) {
d->pActiveItem->setAnimated( false );
d->m_movie->pause();
// No movie available, remember it
d->pActiveItem->setMouseOverAnimation( QString::null );
d->pActiveItem->setActive( true );
return;
}
d->pActiveItem->setPixmapDirect( frame, false, false /*no redraw*/ );
QRect pixRect = d->pActiveItem->pixmapRect(false);
repaintContents( pixRect.x() + rect.x(), pixRect.y() + rect.y(), rect.width(), rect.height(), false );
}
}
void KonqIconViewWidget::slotMovieStatus( int status )
{
if ( status < 0 ) {
// Error playing the MNG -> forget about it and do normal iconeffect
if ( d->pActiveItem && d->pActiveItem->isAnimated() ) {
d->pActiveItem->setAnimated( false );
d->pActiveItem->setMouseOverAnimation( QString::null );
d->pActiveItem->setActive( true );
}
}
}
void KonqIconViewWidget::slotReenableAnimation()
{
if (!--d->m_movieBlocked) {
if ( d->pActiveItem && d->m_movie && d->m_movie->paused()) {
kdDebug(1203) << "reenabled animation" << endl;
d->m_movie->restart();
d->m_movie->unpause();
}
}
}
void KonqIconViewWidget::clear()
{
d->pFileTip->setItem( 0L );
stopImagePreview(); // Just in case
KIconView::clear();
d->pActiveItem = 0L;
}
void KonqIconViewWidget::takeItem( QIconViewItem *item )
{
if ( d->pActiveItem == static_cast<KFileIVI *>(item) )
{
d->pFileTip->setItem( 0L );
d->pActiveItem = 0L;
}
if ( d->pPreviewJob )
d->pPreviewJob->removeItem( static_cast<KFileIVI *>(item)->item() );
KIconView::takeItem( item );
}
// Currently unused - remove in KDE 4.0
void KonqIconViewWidget::setThumbnailPixmap( KFileIVI * item, const QPixmap & pixmap )
{
if ( item )
{
if ( d->pActiveItem == item )
{
d->pFileTip->setItem( 0L );
d->pActiveItem = 0L;
}
item->setThumbnailPixmap( pixmap );
if ( m_bSetGridX && item->width() > gridX() )
{
setGridX( item->width() );
if (autoArrange())
arrangeItemsInGrid();
}
}
}
bool KonqIconViewWidget::initConfig( bool bInit )
{
bool fontChanged = false;
// Color settings
QColor normalTextColor = m_pSettings->normalTextColor();
setItemColor( normalTextColor );
if (m_bDesktop)
{
QColor itemTextBg = m_pSettings->itemTextBackground();
if ( itemTextBg.isValid() )
setItemTextBackground( itemTextBg );
else
setItemTextBackground( NoBrush );
}
bool on = m_pSettings->showFileTips() && QToolTip::isGloballyEnabled();
d->pFileTip->setOptions(on,
m_pSettings->showPreviewsInFileTips(),
m_pSettings->numFileTips());
// if the user wants our own tooltip, don't show the one from Qts ListView
setShowToolTips(!on);
// Font settings
QFont font( m_pSettings->standardFont() );
if (!m_bDesktop)
font.setUnderline( m_pSettings->underlineLink() );
if ( font != KonqIconViewWidget::font() )
{
setFont( font );
if (!bInit)
{
// QIconView doesn't do it by default... but if the font is made much
// bigger, we really need to give more space between the icons
fontChanged = true;
}
}
setIconTextHeight( m_pSettings->iconTextHeight() );
if ( (itemTextPos() == QIconView::Right) && (maxItemWidth() != gridXValue()) )
{
int size = m_size;
m_size = -1; // little trick to force grid change in setIcons
setIcons( size ); // force re-determining all icons
}
else if ( d->bBoostPreview != boostPreview() ) // Update icons if settings for preview icon size have changed
setIcons(m_size);
else if (!bInit)
updateContents();
return fontChanged;
}
bool KonqIconViewWidget::boostPreview() const
{
if ( m_bDesktop ) return false;
KConfigGroup group( KGlobal::config(), "PreviewSettings" );
return group.readBoolEntry( "BoostSize", false );
}
void KonqIconViewWidget::disableSoundPreviews()
{
d->bSoundPreviews = false;
if (d->pSoundPlayer)
d->pSoundPlayer->stop();
d->pSoundItem = 0;
if (d->pSoundTimer && d->pSoundTimer->isActive())
d->pSoundTimer->stop();
}
void KonqIconViewWidget::setIcons( int size, const QStringList& stopImagePreviewFor )
{
// size has changed?
bool sizeChanged = (m_size != size);
int oldGridX = gridX();
m_size = size;
// boost preview option has changed?
bool boost = boostPreview();
bool previewSizeChanged = ( d->bBoostPreview != boost );
d->bBoostPreview = boost;
if ( sizeChanged || previewSizeChanged )
{
int realSize = size ? size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
// choose spacing depending on font, but min 5 (due to KFileIVI move limit)
setSpacing( ( m_bDesktop || ( realSize > KIcon::SizeSmall ) ) ?
QMAX( 5, QFontMetrics(font()).width('n') ) : 0 );
}
if ( sizeChanged || previewSizeChanged || !stopImagePreviewFor.isEmpty() )
{
calculateGridX();
}
bool stopAll = !stopImagePreviewFor.isEmpty() && stopImagePreviewFor.first() == "*";
// Disable repaints that can be triggered by ivi->setIcon(). Since icons are
// resized in-place, if the icon size is increasing it can happens that the right
// or bottom icons exceed the size of the viewport.. here we prevent the repaint
// event that will be triggered in that case.
bool prevUpdatesState = viewport()->isUpdatesEnabled();
viewport()->setUpdatesEnabled( false );
// Do this even if size didn't change, since this is used by refreshMimeTypes...
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() ) {
KFileIVI * ivi = static_cast<KFileIVI *>( it );
// Set a normal icon for files that are not thumbnails, and for files
// that are thumbnails but for which it should be stopped
if ( !ivi->isThumbnail() ||
sizeChanged ||
previewSizeChanged ||
stopAll ||
mimeTypeMatch( ivi->item()->mimetype(), stopImagePreviewFor ) )
{
ivi->setIcon( size, ivi->state(), true, false );
}
else
ivi->invalidateThumb( ivi->state(), true );
}
// Restore viewport update to previous state
viewport()->setUpdatesEnabled( prevUpdatesState );
if ( ( sizeChanged || previewSizeChanged || oldGridX != gridX() ||
!stopImagePreviewFor.isEmpty() ) && autoArrange() )
arrangeItemsInGrid( true ); // take new grid into account and repaint
else
viewport()->update(); //Repaint later..
}
bool KonqIconViewWidget::mimeTypeMatch( const QString& mimeType, const QStringList& mimeList ) const
{
// Code duplication from KIO::PreviewJob
KMimeType::Ptr mime = KMimeType::mimeType( mimeType );
for (QStringList::ConstIterator mt = mimeList.begin(); mt != mimeList.end(); ++mt)
{
if ( mime->is( *mt ) )
return true;
// Support for *mt == "image/*"
QString tmp( mimeType );
if ( (*mt).endsWith("*") && tmp.replace(QRegExp("/.*"), "/*") == (*mt) )
return true;
if ( (*mt) == "text/plain" )
{
QVariant textProperty = mime->property( "X-KDE-text" );
if ( textProperty.type() == QVariant::Bool && textProperty.toBool() )
return true;
}
}
return false;
}
void KonqIconViewWidget::setItemTextPos( ItemTextPos pos )
{
// can't call gridXValue() because this already would need the new itemTextPos()
int sz = m_size ? m_size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
if ( m_bSetGridX )
if ( pos == QIconView::Bottom )
setGridX( QMAX( sz + 50, previewIconSize( sz ) + 13 ) );
else
{
setMaxItemWidth( QMAX( sz, previewIconSize( sz ) ) + m_pSettings->iconTextWidth() );
setGridX( -1 );
}
KIconView::setItemTextPos( pos );
}
void KonqIconViewWidget::gridValues( int* x, int* y, int* dx, int* dy,
int* nx, int* ny )
{
int previewSize = previewIconSize( m_size );
int iconSize = m_size ? m_size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
// Grid size
// as KFileIVI limits to move an icon to x >= 5, y >= 5, we define a grid cell as:
// spacing() must be >= 5 (currently set to 5 in setIcons())
// horizontal: left spacing() + <width>
// vertical : top spacing(), <height>, bottom spacing()
// The doubled space in y-direction gives a better visual separation and makes it clearer
// to which item the text belongs
*dx = spacing() + QMAX( QMAX( iconSize, previewSize ), m_pSettings->iconTextWidth() );
int textHeight = iconTextHeight() * fontMetrics().height();
*dy = spacing() + QMAX( iconSize, previewSize ) + 2 + textHeight + spacing();
// Icon Area
int w, h;
if ( m_IconRect.isValid() ) { // w and h must be != 0, otherwise we would get a div by zero
*x = m_IconRect.left(); w = m_IconRect.width();
*y = m_IconRect.top(); h = m_IconRect.height();
}
else {
*x = 0; w = viewport()->width();
*y = 0; h = viewport()->height();
}
// bug:110775 avoid div by zero (happens e.g. when iconTextHeight or iconTextWidth are very large)
if ( *dx > w )
*dx = w;
if ( *dy > h )
*dy = h;
*nx = w / *dx;
*ny = h / *dy;
// TODO: Check that items->count() <= nx * ny
// Let have exactly nx columns and ny rows
if(*nx && *ny) {
*dx = w / *nx;
*dy = h / *ny;
}
kdDebug(1203) << "x=" << *x << " y=" << *y << " spacing=" << spacing() << " iconSize=" << iconSize
<< " w=" << w << " h=" << h
<< " nx=" << *nx << " ny=" << *ny
<< " dx=" << *dx << " dy=" << *dy << endl;
}
void KonqIconViewWidget::calculateGridX()
{
if ( m_bSetGridX )
if ( itemTextPos() == QIconView::Bottom )
setGridX( gridXValue() );
else
{
setMaxItemWidth( gridXValue() );
setGridX( -1 );
}
}
int KonqIconViewWidget::gridXValue() const
{
// this method is only used in konqi as filemanager (not desktop)
int sz = m_size ? m_size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
int newGridX;
if ( itemTextPos() == QIconView::Bottom )
newGridX = QMAX( sz + 50, previewIconSize( sz ) + 13 );
else
newGridX = QMAX( sz, previewIconSize( sz ) ) + m_pSettings->iconTextWidth();
//kdDebug(1203) << "gridXValue: " << newGridX << " sz=" << sz << endl;
return newGridX;
}
void KonqIconViewWidget::refreshMimeTypes()
{
updatePreviewMimeTypes();
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() )
(static_cast<KFileIVI *>( it ))->item()->refreshMimeType();
setIcons( m_size );
}
void KonqIconViewWidget::setURL( const KURL &kurl )
{
stopImagePreview();
m_url = kurl;
d->pFileTip->setPreview( KGlobalSettings::showFilePreview(m_url) );
if ( m_url.isLocalFile() )
m_dotDirectoryPath = m_url.path(1).append( ".directory" );
else
m_dotDirectoryPath = QString::null;
}
void KonqIconViewWidget::startImagePreview( const QStringList &, bool force )
{
stopImagePreview(); // just in case
// Check config
if ( !KGlobalSettings::showFilePreview( url() ) ) {
kdDebug(1203) << "Previews disabled for protocol " << url().protocol() << endl;
emit imagePreviewFinished();
return;
}
if ((d->bSoundPreviews = d->previewSettings.contains( "audio/" )) &&
!d->pSoundPlayer)
{
KLibFactory *factory = KLibLoader::self()->factory("konq_sound");
if (factory)
d->pSoundPlayer = static_cast<KonqSoundPlayer *>(
factory->create(this, 0, "KonqSoundPlayer"));
d->bSoundPreviews = (d->pSoundPlayer != 0L);
}
KFileItemList items;
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() )
if ( force || !static_cast<KFileIVI *>( it )->hasValidThumbnail() )
items.append( static_cast<KFileIVI *>( it )->item() );
bool onlyAudio = true;
for ( QStringList::ConstIterator it = d->previewSettings.begin(); it != d->previewSettings.end(); ++it ) {
if ( (*it).startsWith( "audio/" ) )
d->bSoundPreviews = true;
else
onlyAudio = false;
}
if ( items.isEmpty() || onlyAudio ) {
emit imagePreviewFinished();
return; // don't start the preview job if not really necessary
}
int iconSize = m_size ? m_size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
int size;
d->bBoostPreview = boostPreview();
size = previewIconSize( iconSize );
if ( !d->bBoostPreview )
iconSize /= 2;
d->pPreviewJob = KIO::filePreview( items, size, size, iconSize,
m_pSettings->textPreviewIconTransparency(), true /* scale */,
true /* save */, &(d->previewSettings) );
connect( d->pPreviewJob, SIGNAL( gotPreview( const KFileItem *, const QPixmap & ) ),
this, SLOT( slotPreview( const KFileItem *, const QPixmap & ) ) );
connect( d->pPreviewJob, SIGNAL( result( KIO::Job * ) ),
this, SLOT( slotPreviewResult() ) );
}
void KonqIconViewWidget::stopImagePreview()
{
if (d->pPreviewJob)
{
d->pPreviewJob->kill();
d->pPreviewJob = 0;
// Now that previews are updated in-place, calling
// arrangeItemsInGrid() here is not needed anymore
}
}
bool KonqIconViewWidget::isPreviewRunning() const
{
return d->pPreviewJob;
}
KFileItemList KonqIconViewWidget::selectedFileItems()
{
KFileItemList lstItems;
QIconViewItem *it = firstItem();
for (; it; it = it->nextItem() )
if ( it->isSelected() ) {
KFileItem *fItem = (static_cast<KFileIVI *>(it))->item();
lstItems.append( fItem );
}
return lstItems;
}
void KonqIconViewWidget::slotDropped( QDropEvent *ev, const QValueList<QIconDragItem> & )
{
// Drop on background
KURL dirURL = url();
if ( m_rootItem ) {
bool dummy;
dirURL = m_rootItem->mostLocalURL(dummy);
}
KonqOperations::doDrop( m_rootItem /* may be 0L */, dirURL, ev, this );
}
void KonqIconViewWidget::slotAboutToCreate(const QPoint &, const QValueList<KIO::CopyInfo> &)
{
// Do nothing :-)
}
void KonqIconViewWidget::drawBackground( QPainter *p, const QRect &r )
{
drawBackground(p, r, r.topLeft());
}
void KonqIconViewWidget::drawBackground( QPainter *p, const QRect &r , const QPoint &pt)
{
const QPixmap *pm = backgroundPixmap();
bool hasPixmap = pm && !pm->isNull();
if ( !hasPixmap ) {
pm = viewport()->backgroundPixmap();
hasPixmap = pm && !pm->isNull();
}
QRect rtgt(r);
rtgt.moveTopLeft(pt);
if (!hasPixmap && backgroundMode() != NoBackground) {
p->fillRect(rtgt, viewport()->backgroundColor());
return;
}
if (hasPixmap) {
int ax = (r.x() + contentsX() + leftMargin()) % pm->width();
int ay = (r.y() + contentsY() + topMargin()) % pm->height();
p->drawTiledPixmap(rtgt, *pm, QPoint(ax, ay));
}
}
QDragObject * KonqIconViewWidget::dragObject()
{
if ( !currentItem() )
return 0;
return konqDragObject( viewport() );
}
KonqIconDrag * KonqIconViewWidget::konqDragObject( QWidget * dragSource )
{
//kdDebug(1203) << "KonqIconViewWidget::konqDragObject" << endl;
KonqIconDrag2 * drag = new KonqIconDrag2( dragSource );
QIconViewItem *primaryItem = currentItem();
// Append all items to the drag object
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() ) {
if ( it->isSelected() ) {
if (!primaryItem)
primaryItem = it;
KFileItem* fileItem = (static_cast<KFileIVI *>(it))->item();
KURL url = fileItem->url();
bool dummy;
KURL mostLocalURL = fileItem->mostLocalURL(dummy);
QString itemURL = KURLDrag::urlToString(url);
kdDebug(1203) << "itemURL=" << itemURL << endl;
QIconDragItem id;
id.setData( QCString(itemURL.latin1()) );
drag->append( id,
QRect( it->pixmapRect(false).topLeft() - m_mousePos,
it->pixmapRect().size() ),
QRect( it->textRect(false).topLeft() - m_mousePos,
it->textRect().size() ),
itemURL, mostLocalURL );
}
}
if (primaryItem)
drag->setPixmap( *primaryItem->pixmap(), m_mousePos - primaryItem->pixmapRect(false).topLeft() );
return drag;
}
void KonqIconViewWidget::contentsDragEnterEvent( QDragEnterEvent *e )
{
if ( e->provides( "text/uri-list" ) )
{
QByteArray payload = e->encodedData( "text/uri-list" );
if ( !payload.size() )
kdError() << "Empty data !" << endl;
// Cache the URLs, since we need them every time we move over a file
// (see KFileIVI)
bool ok = KURLDrag::decode( e, m_lstDragURLs );
if( !ok )
kdError() << "Couldn't decode urls dragged !" << endl;
}
KURL::List uriList;
if ( KURLDrag::decode(e, uriList) )
{
if ( uriList.first().protocol() == "programs" )
{
e->ignore();
emit dragEntered( false );
d->bProgramsURLdrag = true;
return;
}
}
KIconView::contentsDragEnterEvent( e );
emit dragEntered( true /*accepted*/ );
}
void KonqIconViewWidget::contentsDragMoveEvent( QDragMoveEvent *e )
{
if ( d->bProgramsURLdrag ) {
emit dragMove( false );
e->ignore();
cancelPendingHeldSignal();
return;
}
QIconViewItem *item = findItem( e->pos() );
if ( e->source() != viewport() &&
!item && m_rootItem && !m_rootItem->isWritable() ) {
emit dragMove( false );
e->ignore();
cancelPendingHeldSignal();
return;
}
emit dragMove( true );
KIconView::contentsDragMoveEvent( e );
}
void KonqIconViewWidget::contentsDragLeaveEvent( QDragLeaveEvent *e )
{
d->bProgramsURLdrag = false;
KIconView::contentsDragLeaveEvent(e);
emit dragLeft();
}
void KonqIconViewWidget::setItemColor( const QColor &c )
{
iColor = c;
}
QColor KonqIconViewWidget::itemColor() const
{
return iColor;
}
void KonqIconViewWidget::disableIcons( const KURL::List & lst )
{
for ( QIconViewItem *kit = firstItem(); kit; kit = kit->nextItem() )
{
bool bFound = false;
// Wow. This is ugly. Matching two lists together....
// Some sorting to optimise this would be a good idea ?
for (KURL::List::ConstIterator it = lst.begin(); !bFound && it != lst.end(); ++it)
{
if ( static_cast<KFileIVI *>( kit )->item()->url() == *it )
{
bFound = true;
// maybe remove "it" from lst here ?
}
}
static_cast<KFileIVI *>( kit )->setDisabled( bFound );
}
}
void KonqIconViewWidget::slotSelectionChanged()
{
// This code is very related to ListViewBrowserExtension::updateActions
int canCopy = 0;
int canDel = 0;
int canTrash = 0;
bool bInTrash = false;
int iCount = 0;
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() )
{
if ( it->isSelected() )
{
iCount++;
canCopy++;
KFileItem *item = ( static_cast<KFileIVI *>( it ) )->item();
KURL url = item->url();
QString local_path = item->localPath();
if ( url.directory(false) == KGlobalSettings::trashPath() )
bInTrash = true;
if ( KProtocolInfo::supportsDeleting( url ) )
canDel++;
if ( !local_path.isEmpty() )
canTrash++;
}
}
emit enableAction( "cut", canDel > 0 );
emit enableAction( "copy", canCopy > 0 );
emit enableAction( "trash", canDel > 0 && !bInTrash && canTrash==canDel );
emit enableAction( "del", canDel > 0 );
emit enableAction( "properties", iCount > 0 && KPropertiesDialog::canDisplay( selectedFileItems() ) );
emit enableAction( "editMimeType", ( iCount == 1 ) );
emit enableAction( "rename", ( iCount == 1) && !bInTrash );
}
void KonqIconViewWidget::renameCurrentItem()
{
if ( currentItem() )
currentItem()->rename();
}
void KonqIconViewWidget::renameSelectedItem()
{
kdDebug(1203) << " -- KonqIconViewWidget::renameSelectedItem() -- " << endl;
QIconViewItem * item = 0L;
QIconViewItem *it = firstItem();
for (; it; it = it->nextItem() )
if ( it->isSelected() && !item )
{
item = it;
break;
}
if (!item)
{
Q_ASSERT(item);
return;
}
item->rename();
}
void KonqIconViewWidget::cutSelection()
{
kdDebug(1203) << " -- KonqIconViewWidget::cutSelection() -- " << endl;
KonqIconDrag * obj = konqDragObject( /* no parent ! */ );
obj->setMoveSelection( true );
QApplication::clipboard()->setData( obj );
}
void KonqIconViewWidget::copySelection()
{
kdDebug(1203) << " -- KonqIconViewWidget::copySelection() -- " << endl;
KonqIconDrag * obj = konqDragObject( /* no parent ! */ );
QApplication::clipboard()->setData( obj );
}
void KonqIconViewWidget::pasteSelection()
{
paste( url() );
}
void KonqIconViewWidget::paste( const KURL &url )
{
KonqOperations::doPaste( this, url );
}
KURL::List KonqIconViewWidget::selectedUrls()
{
return selectedUrls( UserVisibleUrls );
}
KURL::List KonqIconViewWidget::selectedUrls( UrlFlags flags ) const
{
KURL::List lstURLs;
bool dummy;
for ( QIconViewItem *it = firstItem(); it; it = it->nextItem() )
if ( it->isSelected() ) {
KFileItem* item = (static_cast<KFileIVI *>( it ))->item();
lstURLs.append( flags == MostLocalUrls ? item->mostLocalURL( dummy ) : item->url() );
}
return lstURLs;
}
QRect KonqIconViewWidget::iconArea() const
{
return m_IconRect;
}
void KonqIconViewWidget::setIconArea(const QRect &rect)
{
m_IconRect = rect;
}
int KonqIconViewWidget::lineupMode() const
{
return m_LineupMode;
}
void KonqIconViewWidget::setLineupMode(int mode)
{
m_LineupMode = mode;
}
bool KonqIconViewWidget::sortDirectoriesFirst() const
{
return m_bSortDirsFirst;
}
void KonqIconViewWidget::setSortDirectoriesFirst( bool b )
{
m_bSortDirsFirst = b;
}
void KonqIconViewWidget::contentsMouseMoveEvent( QMouseEvent *e )
{
if ( (d->pSoundPlayer && d->pSoundPlayer->isPlaying()) || (d->pSoundTimer && d->pSoundTimer->isActive()))
{
// The following call is SO expensive (the ::widgetAt call eats up to 80%
// of the mouse move cpucycles!), so it's mandatory to place that function
// under strict checks, such as d->pSoundPlayer->isPlaying()
if ( QApplication::widgetAt( QCursor::pos() ) != topLevelWidget() )
{
if (d->pSoundPlayer)
d->pSoundPlayer->stop();
d->pSoundItem = 0;
if (d->pSoundTimer && d->pSoundTimer->isActive())
d->pSoundTimer->stop();
}
}
d->renameItem= false;
KIconView::contentsMouseMoveEvent( e );
}
void KonqIconViewWidget::contentsDropEvent( QDropEvent * ev )
{
QIconViewItem *i = findItem( ev->pos() );
if ( ev->source() != viewport() &&
!i && m_rootItem && !m_rootItem->isWritable() ) {
ev->accept( false );
return;
}
// Short-circuit QIconView if Ctrl is pressed, so that it's possible
// to drop a file into its own parent widget to copy it.
if ( !i && (ev->action() == QDropEvent::Copy || ev->action() == QDropEvent::Link)
&& ev->source() && ev->source() == viewport())
{
// First we need to call QIconView though, to clear the drag shape
bool bMovable = itemsMovable();
setItemsMovable(false); // hack ? call it what you want :-)
KIconView::contentsDropEvent( ev );
setItemsMovable(bMovable);
QValueList<QIconDragItem> lst;
slotDropped(ev, lst);
}
else
{
KIconView::contentsDropEvent( ev );
emit dropped(); // What is this for ? (David) KDE4: remove
}
// Don't do this here, it's too early !
// slotSaveIconPositions();
// If we want to save after the new file gets listed, though,
// we could reimplement contentsDropEvent in KDIconView and set m_bNeedSave. Bah.
// This signal is sent last because we need to ensure it is
// taken in account when all the slots triggered by the dropped() signal
// are executed. This way we know that the Drag and Drop is truely finished
emit dragFinished();
}
void KonqIconViewWidget::doubleClickTimeout()
{
d->renameItem= true;
mousePressChangeValue();
if ( d->releaseMouseEvent )
{
QMouseEvent e( QEvent::MouseButtonPress,d->mousePos , 1, d->mouseState);
QIconViewItem* item = findItem( e.pos() );
KURL url;
if ( item )
{
url= ( static_cast<KFileIVI *>( item ) )->item()->url();
bool brenameTrash =false;
if ( url.isLocalFile() && (url.directory(false) == KGlobalSettings::trashPath() || url.path(1).startsWith(KGlobalSettings::trashPath())))
brenameTrash = true;
if ( url.isLocalFile() && !brenameTrash && d->renameItem && m_pSettings->renameIconDirectly() && e.button() == LeftButton && item->textRect( false ).contains(e.pos()))
{
if( d->pActivateDoubleClick->isActive () )
d->pActivateDoubleClick->stop();
item->rename();
m_bMousePressed = false;
}
}
}
else
{
QMouseEvent e( QEvent::MouseMove,d->mousePos , 1, d->mouseState);
KIconView::contentsMousePressEvent( &e );
}
if( d->pActivateDoubleClick->isActive() )
d->pActivateDoubleClick->stop();
d->releaseMouseEvent = false;
d->renameItem= false;
}
void KonqIconViewWidget::wheelEvent(QWheelEvent* e)
{
// when scrolling with mousewheel, stop possible pending filetip
d->pFileTip->setItem( 0 );
if (e->state() == ControlButton)
{
if (e->delta() >= 0)
{
emit incIconSize();
}
else
{
emit decIconSize();
}
e->accept();
return;
}
KIconView::wheelEvent(e);
}
void KonqIconViewWidget::leaveEvent( QEvent *e )
{
// when leaving the widget, stop possible pending filetip and icon effect
slotOnViewport();
KIconView::leaveEvent(e);
}
void KonqIconViewWidget::mousePressChangeValue()
{
//kdDebug(1203) << "KonqIconViewWidget::contentsMousePressEvent" << endl;
m_bMousePressed = true;
if (d->pSoundPlayer)
d->pSoundPlayer->stop();
d->bSoundItemClicked = true;
d->firstClick = false;
// Once we click on the item, we don't want a tooltip
// Fixes part of #86968
d->pFileTip->setItem( 0 );
}
void KonqIconViewWidget::contentsMousePressEvent( QMouseEvent *e )
{
if(d->pActivateDoubleClick && d->pActivateDoubleClick->isActive ())
d->pActivateDoubleClick->stop();
QIconViewItem* item = findItem( e->pos() );
m_mousePos = e->pos();
KURL url;
if ( item )
{
url = ( static_cast<KFileIVI *>( item ) )->item()->url();
bool brenameTrash =false;
if ( url.isLocalFile() && (url.directory(false) == KGlobalSettings::trashPath() || url.path(1).startsWith(KGlobalSettings::trashPath())))
brenameTrash = true;
if ( !brenameTrash && !KGlobalSettings::singleClick() && m_pSettings->renameIconDirectly() && e->button() == LeftButton && item->textRect( false ).contains(e->pos())&& !d->firstClick && url.isLocalFile() && (!url.protocol().find("device", 0, false)==0))
{
d->firstClick = true;
d->mousePos = e->pos();
d->mouseState = e->state();
if (!d->pActivateDoubleClick)
{
d->pActivateDoubleClick = new QTimer(this);
connect(d->pActivateDoubleClick, SIGNAL(timeout()), this, SLOT(doubleClickTimeout()));
}
if( d->pActivateDoubleClick->isActive () )
d->pActivateDoubleClick->stop();
else
d->pActivateDoubleClick->start(QApplication::doubleClickInterval());
d->releaseMouseEvent = false;
return;
}
else
d->renameItem= false;
}
else
d->renameItem= false;
mousePressChangeValue();
if(d->pActivateDoubleClick && d->pActivateDoubleClick->isActive())
d->pActivateDoubleClick->stop();
KIconView::contentsMousePressEvent( e );
}
void KonqIconViewWidget::contentsMouseReleaseEvent( QMouseEvent *e )
{
KIconView::contentsMouseReleaseEvent( e );
if(d->releaseMouseEvent && d->pActivateDoubleClick && d->pActivateDoubleClick->isActive ())
d->pActivateDoubleClick->stop();
slotSelectionChanged();
d->releaseMouseEvent = true;
m_bMousePressed = false;
}
void KonqIconViewWidget::slotSaveIconPositions()
{
// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
// This code is currently not used but left in for compatibility reasons.
// It can be removed in KDE 4.0
// Saving of desktop icon positions is now done in KDIconView::saveIconPositions()
// in kdebase/kdesktop/kdiconview.cc
// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
if ( m_dotDirectoryPath.isEmpty() )
return;
if ( !m_bDesktop )
return; // Currently not available in Konqueror
kdDebug(1214) << "KonqIconViewWidget::slotSaveIconPositions" << endl;
KSimpleConfig dotDirectory( m_dotDirectoryPath );
QIconViewItem *it = firstItem();
if ( !it )
return; // No more icons. Maybe we're closing and they've been removed already
while ( it )
{
KFileIVI *ivi = static_cast<KFileIVI *>( it );
KFileItem *item = ivi->item();
dotDirectory.setGroup( QString( m_iconPositionGroupPrefix ).append( item->url().fileName() ) );
kdDebug(1214) << "KonqIconViewWidget::slotSaveIconPositions " << item->url().fileName() << " " << it->x() << " " << it->y() << endl;
dotDirectory.writeEntry( QString( "X %1" ).arg( width() ), it->x() );
dotDirectory.writeEntry( QString( "Y %1" ).arg( height() ), it->y() );
dotDirectory.writeEntry( "Exists", true );
it = it->nextItem();
}
QStringList groups = dotDirectory.groupList();
QStringList::ConstIterator gIt = groups.begin();
QStringList::ConstIterator gEnd = groups.end();
for (; gIt != gEnd; ++gIt )
if ( (*gIt).left( m_iconPositionGroupPrefix.length() ) == m_iconPositionGroupPrefix )
{
dotDirectory.setGroup( *gIt );
if ( dotDirectory.hasKey( "Exists" ) )
dotDirectory.deleteEntry( "Exists", false );
else
{
kdDebug(1214) << "KonqIconViewWidget::slotSaveIconPositions deleting group " << *gIt << endl;
dotDirectory.deleteGroup( *gIt );
}
}
dotDirectory.sync();
// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
// This code is currently not used but left in for compatibility reasons.
// It can be removed in KDE 4.0
// Saving of desktop icon positions is now done in KDIconView::saveIconPositions()
// in kdebase/kdesktop/kdiconview.cc
// WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
}
// Adapted version of QIconView::insertInGrid, that works relative to
// m_IconRect, instead of the entire viewport.
void KonqIconViewWidget::insertInGrid(QIconViewItem *item)
{
if (0L == item)
return;
if (!m_IconRect.isValid())
{
KIconView::insertInGrid(item);
return;
}
QRegion r(m_IconRect);
QIconViewItem *i = firstItem();
int y = -1;
for (; i; i = i->nextItem() )
{
r = r.subtract(i->rect());
y = QMAX(y, i->y() + i->height());
}
QMemArray<QRect> rects = r.rects();
QMemArray<QRect>::Iterator it = rects.begin();
bool foundPlace = FALSE;
for (; it != rects.end(); ++it)
{
QRect rect = *it;
if (rect.width() >= item->width() && rect.height() >= item->height())
{
int sx = 0, sy = 0;
if (rect.width() >= item->width() + spacing())
sx = spacing();
if (rect.height() >= item->height() + spacing())
sy = spacing();
item->move(rect.x() + sx, rect.y() + sy);
foundPlace = true;
break;
}
}
if (!foundPlace)
item->move(m_IconRect.topLeft());
//item->dirty = false;
return;
}
/*
* The algorithm used for lineing up the icons could be called
* "beating flat the icon field". Imagine the icon field to be some height
* field on a regular grid, with the height being the number of icons in
* each grid element. Now imagine slamming on the field with a shovel or
* some other flat surface. The high peaks will be flattened and spread out
* over their adjacent areas. This is basically what the algorithm tries to
* simulate.
*
* First, the icons are binned to a grid of the desired size. If all bins
* are containing at most one icon, we're done, of course. We just have to
* move all icons to the center of each grid element.
* For each bin which has more than one icon in it, we calculate 4
* "friction coefficients", one for each cardinal direction. The friction
* coefficient of a direction is the number of icons adjacent in that
* direction. The idea is that this number is somewhat a measure in which
* direction the icons should flow: icons flow in the direction of lowest
* friction coefficient. We move a maximum of one icon per bin and loop over
* all bins. This procedure is repeated some maximum number of times or until
* no icons are moved anymore.
*
* I don't know if this algorithm is good or bad, I don't even know if it will
* work all the time. It seems a correct thing to do, however, and it seems to
* work particularly well. In any case, the number of runs is limited so there
* can be no races.
*/
void KonqIconViewWidget::lineupIcons()
{
// even if there are no items yet, calculate the maxItemWidth to have the correct
// item rect when we insert new items
// Create a grid of (ny x nx) bins.
int x0, y0, dx, dy, nx, ny;
gridValues( &x0, &y0, &dx, &dy, &nx, &ny );
int itemWidth = dx - spacing();
bool newItemWidth = false;
if ( maxItemWidth() != itemWidth ) {
newItemWidth = true;
setMaxItemWidth( itemWidth );
setFont( font() ); // Force calcRect()
}
if ( !firstItem() ) {
kdDebug(1203) << "No icons at all ?\n";
return;
}
int iconSize = m_size ? m_size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
typedef QValueList<QIconViewItem*> Bin;
Bin*** bins = new Bin**[nx];
int i;
int j;
for ( i = 0; i < nx ; i++ ) {
bins[i] = new Bin*[ny];
for ( j = 0; j < ny; j++ )
bins[i][j] = 0L;
}
// Insert items into grid
int textHeight = iconTextHeight() * fontMetrics().height();
for ( QIconViewItem* item = firstItem(); item; item = item->nextItem() ) {
int x = item->x() + item->width() / 2 - x0;
int y = item->pixmapRect( false ).bottom() - iconSize / 2
- ( dy - ( iconSize + textHeight ) ) / 2 - y0;
int posX = QMIN( nx-1, QMAX( 0, x / dx ) );
int posY = QMIN( ny-1, QMAX( 0, y / dy ) );
if ( !bins[posX][posY] )
bins[posX][posY] = new Bin;
bins[posX][posY]->prepend( item );
}
// The shuffle code
int n, k;
const int infinity = 10000;
int nmoves = 1;
for ( n = 0; n < 30 && nmoves > 0; n++ ) {
nmoves = 0;
for ( i = 0; i < nx; i++ ) {
for ( j = 0; j < ny; j++ ) {
if ( !bins[i][j] || ( bins[i][j]->count() <= 1 ) )
continue;
// Calculate the 4 "friction coefficients".
int tf = 0, bf = 0, lf = 0, rf = 0;
for ( k = j-1; k >= 0 && bins[i][k] && bins[i][k]->count(); k-- )
tf += bins[i][k]->count();
if ( k == -1 )
tf += infinity;
for ( k = j+1; k < ny && bins[i][k] && bins[i][k]->count(); k++ )
bf += bins[i][k]->count();
if ( k == ny )
bf += infinity;
for ( k = i-1; k >= 0 && bins[k][j] && bins[k][j]->count(); k-- )
lf += bins[k][j]->count();
if ( k == -1 )
lf += infinity;
for ( k = i+1; k < nx && bins[k][j] && bins[k][j]->count(); k++ )
rf += bins[k][j]->count();
if ( k == nx )
rf += infinity;
// If we are stuck between walls, continue
if ( tf >= infinity && bf >= infinity &&
lf >= infinity && rf >= infinity )
continue;
// Is there a preferred lineup direction?
if ( m_LineupMode == LineupHorizontal ) {
tf += infinity;
bf += infinity;
}
else if ( m_LineupMode == LineupVertical ) {
lf += infinity;
rf += infinity;
}
// Move one item in the direction of the least friction
QIconViewItem* movedItem;
Bin* items = bins[i][j];
int mini = QMIN( QMIN( tf, bf ), QMIN( lf, rf ) );
if ( tf == mini ) {
// move top item in (i,j) to (i,j-1)
Bin::iterator it = items->begin();
movedItem = *it;
for ( ++it; it != items->end(); ++it ) {
if ( (*it)->y() < movedItem->y() )
movedItem = *it;
}
items->remove( movedItem );
if ( !bins[i][j-1] )
bins[i][j-1] = new Bin;
bins[i][j-1]->prepend( movedItem );
}
else if ( bf ==mini ) {
// move bottom item in (i,j) to (i,j+1)
Bin::iterator it = items->begin();
movedItem = *it;
for ( ++it; it != items->end(); ++it ) {
if ( (*it)->y() > movedItem->y() )
movedItem = *it;
}
items->remove( movedItem );
if ( !bins[i][j+1] )
bins[i][j+1] = new Bin;
bins[i][j+1]->prepend( movedItem );
}
else if ( lf == mini )
{
// move left item in (i,j) to (i-1,j)
Bin::iterator it = items->begin();
movedItem = *it;
for ( ++it; it != items->end(); ++it ) {
if ( (*it)->x() < movedItem->x() )
movedItem = *it;
}
items->remove( movedItem );
if ( !bins[i-1][j] )
bins[i-1][j] = new Bin;
bins[i-1][j]->prepend( movedItem );
}
else {
// move right item in (i,j) to (i+1,j)
Bin::iterator it = items->begin();
movedItem = *it;
for ( ++it; it != items->end(); ++it ) {
if ( (*it)->x() > movedItem->x() )
movedItem = *it;
}
items->remove( movedItem );
if ( !bins[i+1][j] )
bins[i+1][j] = new Bin;
bins[i+1][j]->prepend( movedItem );
}
nmoves++;
}
}
}
// Perform the actual moving
QRegion repaintRegion;
QValueList<QIconViewItem*> movedItems;
for ( i = 0; i < nx; i++ ) {
for ( j = 0; j < ny; j++ ) {
Bin* bin = bins[i][j];
if ( !bin )
continue;
if ( !bin->isEmpty() ) {
QIconViewItem* item = bin->first();
int newX = x0 + i*dx + spacing() +
QMAX(0, ( (dx-spacing()) - item->width() ) / 2); // pixmap can be larger as iconsize
// align all icons vertically to their text
int newY = y0 + j*dy + dy - spacing() - ( item->pixmapRect().bottom() + 2 + textHeight );
if ( item->x() != newX || item->y() != newY ) {
QRect oldRect = item->rect();
movedItems.prepend( item );
item->move( newX, newY );
if ( item->rect() != oldRect )
repaintRegion = repaintRegion.unite( oldRect );
}
}
delete bin;
bins[i][j] = 0L;
}
}
// repaint
if ( newItemWidth )
updateContents();
else {
// Repaint only repaintRegion...
QMemArray<QRect> rects = repaintRegion.rects();
for ( uint l = 0; l < rects.count(); l++ ) {
kdDebug( 1203 ) << "Repainting (" << rects[l].x() << ","
<< rects[l].y() << ")\n";
repaintContents( rects[l], false );
}
// Repaint icons that were moved
while ( !movedItems.isEmpty() ) {
repaintItem( movedItems.first() );
movedItems.remove( movedItems.first() );
}
}
for ( i = 0; i < nx ; i++ ) {
delete [] bins[i];
}
delete [] bins;
}
void KonqIconViewWidget::lineupIcons( QIconView::Arrangement arrangement )
{
int x0, y0, dx, dy, nxmax, nymax;
gridValues( &x0, &y0, &dx, &dy, &nxmax, &nymax );
int textHeight = iconTextHeight() * fontMetrics().height();
QRegion repaintRegion;
QValueList<QIconViewItem*> movedItems;
int nx = 0, ny = 0;
QIconViewItem* item;
for ( item = firstItem(); item; item = item->nextItem() ) {
int newX = x0 + nx*dx + spacing() +
QMAX(0, ( (dx-spacing()) - item->width() ) / 2); // icon can be larger as defined
// align all icons vertically to their text
int newY = y0 + ny*dy + dy - spacing() - ( item->pixmapRect().bottom() + 2 + textHeight );
if ( item->x() != newX || item->y() != newY ) {
QRect oldRect = item->rect();
movedItems.prepend( item );
item->move( newX, newY );
if ( item->rect() != oldRect )
repaintRegion = repaintRegion.unite( oldRect );
}
if ( arrangement == QIconView::LeftToRight ) {
nx++;
if ( nx >= nxmax ) {
ny++;
nx = 0;
}
}
else {
ny++;
if ( ny >= nymax ) {
nx++;
ny = 0;
}
}
}
// Repaint only repaintRegion...
QMemArray<QRect> rects = repaintRegion.rects();
for ( uint l = 0; l < rects.count(); l++ ) {
kdDebug( 1203 ) << "Repainting (" << rects[l].x() << ","
<< rects[l].y() << ")\n";
repaintContents( rects[l], false );
}
// Repaint icons that were moved
while ( !movedItems.isEmpty() ) {
repaintItem( movedItems.first() );
movedItems.remove( movedItems.first() );
}
}
int KonqIconViewWidget::largestPreviewIconSize( int size ) const
{
int iconSize = size ? size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
if (iconSize < 28)
return 48;
if (iconSize < 40)
return 64;
if (iconSize < 60)
return 96;
if (iconSize < 120)
return 128;
return 192;
}
int KonqIconViewWidget::previewIconSize( int size ) const
{
int iconSize = size ? size : KGlobal::iconLoader()->currentSize( KIcon::Desktop );
if (!d->bBoostPreview)
return iconSize;
return largestPreviewIconSize( iconSize );
}
void KonqIconViewWidget::visualActivate(QIconViewItem * item)
{
// Rect of the QIconViewItem.
QRect irect = item->rect();
// Rect of the QIconViewItem's pixmap area.
QRect rect = item->pixmapRect();
// Adjust to correct position. If this isn't done, the fact that the
// text may be wider than the pixmap puts us off-centre.
rect.moveBy(irect.x(), irect.y());
// Adjust for scrolling (David)
rect.moveBy( -contentsX(), -contentsY() );
Initial import of Trinity 3.5.11 to kdebase Extends krandrtray, adds iccconfig kcontrol module, adds run dialog autocomplete and lots of bugfixes Will need to check for commit warnings and repair as encountered Also needs full compile test git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1061475 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
KIconEffect::visualActivate(viewport(), rect, item->pixmap());
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
}
void KonqIconViewWidget::backgroundPixmapChange( const QPixmap & )
{
viewport()->update();
}
void KonqIconViewWidget::setPreviewSettings( const QStringList& settings )
{
d->previewSettings = settings;
updatePreviewMimeTypes();
int size = m_size;
m_size = -1; // little trick to force grid change in setIcons
setIcons( size ); // force re-determining all icons
}
const QStringList& KonqIconViewWidget::previewSettings()
{
return d->previewSettings;
}
void KonqIconViewWidget::setNewURL( const QString& url )
{
KURL u;
if ( url.startsWith( "/" ) )
u.setPath( url );
else
u = url;
setURL( u );
}
void KonqIconViewWidget::setCaseInsensitiveSort( bool b )
{
d->bCaseInsensitive = b;
}
bool KonqIconViewWidget::caseInsensitiveSort() const
{
return d->bCaseInsensitive;
}
bool KonqIconViewWidget::canPreview( KFileItem* item )
{
if ( !KGlobalSettings::showFilePreview( url() ) )
return false;
if ( d->pPreviewMimeTypes == 0L )
updatePreviewMimeTypes();
return mimeTypeMatch( item->mimetype(), *( d->pPreviewMimeTypes ) );
}
void KonqIconViewWidget::updatePreviewMimeTypes()
{
if ( d->pPreviewMimeTypes == 0L )
d->pPreviewMimeTypes = new QStringList;
else
d->pPreviewMimeTypes->clear();
// Load the list of plugins to determine which mimetypes are supported
KTrader::OfferList plugins = KTrader::self()->query("ThumbCreator");
KTrader::OfferList::ConstIterator it;
for ( it = plugins.begin(); it != plugins.end(); ++it ) {
if ( d->previewSettings.contains((*it)->desktopEntryName()) ) {
QStringList mimeTypes = (*it)->property("MimeTypes").toStringList();
for (QStringList::ConstIterator mt = mimeTypes.begin(); mt != mimeTypes.end(); ++mt)
d->pPreviewMimeTypes->append(*mt);
}
}
}
#include "konq_iconviewwidget.moc"
/* vim: set et sw=4 ts=8 softtabstop=4: */