workspace/kcontrol/kdm/background/bgwallpaper.cpp

   1 /* vi: ts=8 sts=4 sw=4
   2
   3    This file is part of the KDE project, module kcmbackground.
   4
   5    Copyright (C) 1999 Geert Jansen <g.t.jansen@stud.tue.nl>
   6    Copyright (C) 2003 Waldo Bastian <bastian@kde.org>
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License
  10    version 2 as published by the Free Software Foundation.
  11
  12    This library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Library General Public License for more details.
  16
  17    You should have received a copy of the GNU Library General Public License
  18    along with this library; see the file COPYING.LIB.  If not, write to
  19    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20    Boston, MA 02110-1301, USA.
  21  */
  22
  23 #include <config-workspace.h>
  24
  25 #include <QCheckBox>
  26 #include <QEvent>
  27 #include <QPushButton>
  28 #include <QSpinBox>
  29 //Added by qt3to4:
  30 #include <QDragEnterEvent>
  31 #include <QDropEvent>
  32
  33 #include <kfiledialog.h>
  34 #include <kimageio.h>
  35 #include <klocale.h>
  36 #include <kstandarddirs.h>
  37 #include <k3urldrag.h>
  38
  39 #include "bgsettings.h"
  40 #include "bgwallpaper.h"
  41 #include "ui_bgwallpaper_ui.h"
  42
  43
  44 /**** BGMultiWallpaperList ****/
  45
  46 class BGMultiWallpaperBase : public QWidget, public Ui::BGMultiWallpaperBase
  47 {
  48 public:
  49   BGMultiWallpaperBase( QWidget *parent ) : QWidget( parent ) {
  50     setupUi( this );
  51   }
  52 };
  53
  54 BGMultiWallpaperList::BGMultiWallpaperList(QWidget *parent, const char *name)
  55         : QListWidget(parent)
  56 {
  57    setObjectName(name);
  58    setAcceptDrops(true);
  59    setSelectionMode(QListWidget::ExtendedSelection);
  60 }
  61
  62
  63 void BGMultiWallpaperList::dragEnterEvent(QDragEnterEvent *ev)
  64 {
  65    ev->setAccepted(K3URLDrag::canDecode(ev));
  66 }
  67
  68
  69 void BGMultiWallpaperList::dropEvent(QDropEvent *ev)
  70 {
  71    QStringList files;
  72    KUrl::List urls;
  73    K3URLDrag::decode(ev, urls);
  74    for(KUrl::List::ConstIterator it = urls.constBegin();
  75        it != urls.constEnd(); ++it)
  76    {
  77       // TODO: Download remote files
  78       if ((*it).isLocalFile())
  79           files.append((*it).path());
  80    }
  81    addItems(files);
  82 }
  83
  84 bool BGMultiWallpaperList::hasSelection()
  85 {
  86     for ( int i = 0; i < count(); i++)
  87     {
  88         if ( item( i ) && item( i )->isSelected() )
  89             return true;
  90     }
  91     return false;
  92 }
  93
  94 void BGMultiWallpaperList::ensureSelectionVisible()
  95 {
  96     // KDE 4 - I believe the three lines below are redundant
  97     //
  98     //for ( int i = topItem(); i < topItem() + numItemsVisible() - 1; i++)
  99     //    if ( item( i ) && item( i )->isSelected() )
 100     //        return;
 101
 102     for ( int i = 0; i < count(); i++)
 103         if ( item( i ) && item( i )->isSelected() )
 104         {
 105             scrollToItem( item(i) , QAbstractItemView::PositionAtTop );
 106             return;
 107         }
 108 }
 109
 110 /**** BGMultiWallpaperDialog ****/
 111
 112 BGMultiWallpaperDialog::BGMultiWallpaperDialog(KBackgroundSettings *settings,
 113         QWidget *parent, const char *name)
 114         : KDialog( parent ), m_pSettings(settings)
 115 {
 116    setObjectName( name );
 117    setModal( true );
 118    setCaption( i18n("Setup Slide Show") );
 119    setButtons( Ok | Cancel );
 120    showButtonSeparator( true );
 121
 122    dlg = new BGMultiWallpaperBase(this);
 123    setMainWidget(dlg);
 124
 125    dlg->m_spinInterval->setRange(1, 99999);
 126    dlg->m_spinInterval->setSingleStep(15);
 127    dlg->m_spinInterval->setSuffix(i18n(" min"));
 128
 129    // Load
 130    dlg->m_spinInterval->setValue(qMax(1,m_pSettings->wallpaperChangeInterval()));
 131
 132    dlg->m_listImages->addItems(m_pSettings->wallpaperList());
 133
 134    if (m_pSettings->multiWallpaperMode() == KBackgroundSettings::Random)
 135       dlg->m_cbRandom->setChecked(true);
 136
 137    connect(dlg->m_buttonAdd, SIGNAL(clicked()), SLOT(slotAdd()));
 138    connect(dlg->m_buttonRemove, SIGNAL(clicked()), SLOT(slotRemove()));
 139    connect(dlg->m_buttonMoveUp, SIGNAL(clicked()), SLOT(slotMoveUp()));
 140    connect(dlg->m_buttonMoveDown, SIGNAL(clicked()), SLOT(slotMoveDown()));
 141    connect(dlg->m_listImages, SIGNAL(itemClicked ( QListWidgetItem * )), SLOT(slotItemSelected( QListWidgetItem *)));
 142    connect(this,SIGNAL(okClicked()),this,SLOT(slotOk()));
 143    dlg->m_buttonRemove->setEnabled( false );
 144    dlg->m_buttonMoveUp->setEnabled( false );
 145    dlg->m_buttonMoveDown->setEnabled( false );
 146
 147 }
 148
 149 void BGMultiWallpaperDialog::slotItemSelected( QListWidgetItem * )
 150 {
 151     dlg->m_buttonRemove->setEnabled( dlg->m_listImages->hasSelection() );
 152     setEnabledMoveButtons();
 153 }
 154
 155 void BGMultiWallpaperDialog::setEnabledMoveButtons()
 156 {
 157     bool hasSelection = dlg->m_listImages->hasSelection();
 158     QListWidgetItem * item;
 159
 160     item = dlg->m_listImages->item(0);
 161     dlg->m_buttonMoveUp->setEnabled( hasSelection && item && !item->isSelected() );
 162     item  = dlg->m_listImages->item( dlg->m_listImages->count() - 1 );
 163     dlg->m_buttonMoveDown->setEnabled( hasSelection && item && !item->isSelected() );
 164 }
 165
 166 void BGMultiWallpaperDialog::slotAdd()
 167 {
 168     QStringList mimeTypes = KImageIO::mimeTypes( KImageIO::Reading );
 169     mimeTypes += "image/svg+xml";
 170
 171     QStringList lstWallpaper = KGlobal::dirs()->findDirs("wallpaper", "");
 172     KFileDialog fileDialog((lstWallpaper.count()>0) ? lstWallpaper.first() : QString(),
 173                            mimeTypes.join( " " ), this);
 174
 175     fileDialog.setCaption(i18n("Select Image"));
 176     KFile::Modes mode = KFile::Files |
 177                         KFile::Directory |
 178                         KFile::ExistingOnly |
 179                         KFile::LocalOnly;
 180     fileDialog.setMode(mode);
 181     fileDialog.exec();
 182     QStringList files = fileDialog.selectedFiles();
 183     if (files.isEmpty())
 184         return;
 185
 186     dlg->m_listImages->addItems(files);
 187 }
 188
 189 void BGMultiWallpaperDialog::slotRemove()
 190 {
 191     int current = -1;
 192     for ( int i = 0; i < dlg->m_listImages->count();)
 193     {
 194         QListWidgetItem * item = dlg->m_listImages->item( i );
 195         if ( item && item->isSelected())
 196         {
 197             delete dlg->m_listImages->takeItem(i);
 198             if (current == -1)
 199                current = i;
 200         }
 201         else
 202             i++;
 203     }
 204     if ((current != -1) && (current < (signed)dlg->m_listImages->count()))
 205        dlg->m_listImages->item(current)->setSelected(true);
 206
 207     dlg->m_buttonRemove->setEnabled(dlg->m_listImages->hasSelection());
 208
 209     setEnabledMoveButtons();
 210 }
 211
 212 void BGMultiWallpaperDialog::slotMoveUp()
 213 {
 214     for ( int i = 1; i < dlg->m_listImages->count(); i++)
 215     {
 216         QListWidgetItem * item = dlg->m_listImages->item( i );
 217         if ( item && item->isSelected() )
 218         {
 219             dlg->m_listImages->takeItem( i );
 220             dlg->m_listImages->insertItem( i - 1 , item );
 221         }
 222     }
 223     dlg->m_listImages->ensureSelectionVisible();
 224     setEnabledMoveButtons();
 225 }
 226
 227 void BGMultiWallpaperDialog::slotMoveDown()
 228 {
 229     for ( int i = dlg->m_listImages->count() - 1; i > 0; i--)
 230     {
 231         QListWidgetItem * item = dlg->m_listImages->item( i - 1 );
 232         if ( item && item->isSelected())
 233         {
 234             dlg->m_listImages->takeItem( i - 1 );
 235             dlg->m_listImages->insertItem( i , item );
 236         }
 237     }
 238     dlg->m_listImages->ensureSelectionVisible();
 239     setEnabledMoveButtons();
 240 }
 241
 242 void BGMultiWallpaperDialog::slotOk()
 243 {
 244     QStringList lst;
 245     for ( int i=0; i < dlg->m_listImages->count(); i++)
 246         lst.append(dlg->m_listImages->item(i)->text());
 247     m_pSettings->setWallpaperList(lst);
 248     m_pSettings->setWallpaperChangeInterval(dlg->m_spinInterval->value());
 249     if (dlg->m_cbRandom->isChecked())
 250        m_pSettings->setMultiWallpaperMode(KBackgroundSettings::Random);
 251     else
 252        m_pSettings->setMultiWallpaperMode(KBackgroundSettings::InOrder);
 253
 254     KDialog::accept();
 255 }
 256
 257
 258 #include "bgwallpaper.moc"