workspace/kwin/kcmkwin/kwindesktop/desktop.cpp

   1 // -*- c-basic-offset: 2 -*-
   2 /**
   3  *  Copyright (c) 2000 Matthias Elter <elter@kde.org>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 // Own
  21 #include "desktop.h"
  22
  23 // Qt
  24 #include <QtDBus/QDBusInterface>
  25 #include <QtGui/QBoxLayout>
  26 #include <QtGui/QCheckBox>
  27 #include <QtGui/QLabel>
  28 #include <QtGui/QFormLayout>
  29 #include <QtGui/QSlider>
  30 #include <QGroupBox>
  31
  32 #ifdef Q_WS_X11
  33 #include <QX11Info>
  34 #endif
  35
  36 // KDE
  37 #include <kglobal.h>
  38 #include <klocale.h>
  39 #include <kdialog.h>
  40 #include <klineedit.h>
  41 #include <knuminput.h>
  42 #include <kconfig.h>
  43 #include <kconfiggroup.h>
  44 #include <kgenericfactory.h>
  45
  46 #include <netwm.h>
  47
  48 K_PLUGIN_FACTORY(KWinKcmFactory,
  49         registerPlugin<KDesktopConfig>();
  50         )
  51 K_EXPORT_PLUGIN(KWinKcmFactory("kcm_kwindesktop"))
  52
  53 #if 0
  54 #include "kdesktop_interface.h"
  55 #endif
  56
  57 // I'm using lineedits by intention as it makes sence to be able
  58 // to see all desktop names at the same time. It also makes sense to
  59 // be able to TAB through those line edits fast. So don't send me mails
  60 // asking why I did not implement a more intelligent/smaller GUI.
  61
  62 KDesktopConfig::KDesktopConfig(QWidget *parent, const QVariantList &)
  63   : KCModule(KWinKcmFactory::componentData(), parent)
  64 {
  65
  66   setQuickHelp( i18n("<h1>Multiple Desktops</h1>In this module, you can configure how many virtual desktops you want and how these should be labeled."));
  67
  68   Q_ASSERT(maxDesktops % 2 == 0);
  69
  70   QVBoxLayout *layout = new QVBoxLayout(this);
  71   layout->setMargin(0);
  72   layout->setSpacing(KDialog::spacingHint());
  73
  74   QHBoxLayout *lay = new QHBoxLayout();
  75   lay->setMargin(KDialog::marginHint());
  76   lay->setSpacing(KDialog::spacingHint());
  77
  78   QLabel *label = new QLabel(i18n("N&umber of desktops: "), this);
  79   _numInput = new KIntNumInput(4, this);
  80   _numInput->setRange(1, maxDesktops, 1);
  81   connect(_numInput, SIGNAL(valueChanged(int)), SLOT(slotValueChanged(int)));
  82   connect(_numInput, SIGNAL(valueChanged(int)), SLOT( changed() ));
  83   label->setBuddy( _numInput );
  84   QString wtstr = i18n( "Here you can set how many virtual desktops you want on your KDE desktop. Move the slider to change the value." );
  85   label->setWhatsThis( wtstr );
  86   _numInput->setWhatsThis( wtstr );
  87   //QSpacerItem *horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
  88
  89   lay->addWidget(label);
  90   lay->addWidget(_numInput);
  91   //lay->addItem(horizontalSpacer);
  92   lay->setStretchFactor( _numInput, 2 );
  93
  94   layout->addLayout(lay);
  95
  96   // name group
  97   QGroupBox *name_group = new QGroupBox(i18n("Desktop &Names"), this);
  98   QGridLayout *namesLayout = new QGridLayout;
  99   name_group->setLayout(namesLayout);
 100   for(int i = 0; i < maxDesktops; i++)
 101     {
 102       _nameLabel[i] = new QLabel(i18n("Desktop %1:", i+1), name_group);
 103       _nameInput[i] = new KLineEdit(name_group);
 104       _nameLabel[i]->setAlignment(Qt::AlignRight | Qt::AlignVCenter);
 105       _nameLabel[i]->setWhatsThis( i18n( "Here you can enter the name for desktop %1", i+1 ) );
 106       _nameInput[i]->setWhatsThis( i18n( "Here you can enter the name for desktop %1", i+1 ) );
 107
 108       connect(_nameInput[i], SIGNAL(textChanged(const QString&)),
 109            SLOT( changed() ));
 110       namesLayout->addWidget(_nameLabel[i], i, 0, 1, 1);
 111       namesLayout->addWidget(_nameInput[i], i, 1, 1, 1);
 112     }
 113
 114   for(int i = 1; i < maxDesktops; i++)
 115       setTabOrder( _nameInput[i-1], _nameInput[i] );
 116
 117   layout->addWidget(name_group);
 118
 119 #if 0
 120   _wheelOption = new QCheckBox(i18n("Mouse wheel over desktop background switches desktop"), this);
 121   connect(_wheelOption,SIGNAL(toggled(bool)), SLOT( changed() ));
 122
 123   layout->addWidget(_wheelOption);
 124 #endif
 125   layout->addStretch(1);
 126
 127   // Begin check for immutable
 128 #ifdef Q_WS_X11
 129   int kwin_screen_number = DefaultScreen(QX11Info::display());
 130 #else
 131   int kwin_screen_number = 0;
 132 #endif
 133
 134   KSharedConfig::Ptr config = KSharedConfig::openConfig( "kwinrc" );
 135
 136   QByteArray groupname;
 137   if (kwin_screen_number == 0)
 138      groupname = "Desktops";
 139   else
 140      groupname = "Desktops-screen-" + QByteArray::number ( kwin_screen_number );
 141
 142   if (config->isGroupImmutable(groupname))
 143   {
 144      name_group->setEnabled(false);
 145      //number of desktops widgets
 146      label->setEnabled(false);
 147      _numInput->setEnabled(false);
 148   }
 149   else
 150   {
 151      KConfigGroup cfgGroup(config.data(), groupname.constData());
 152      if (cfgGroup.isEntryImmutable("Number"))
 153      {
 154         //number of desktops widgets
 155         label->setEnabled(false);
 156         _numInput->setEnabled(false);
 157      }
 158   }
 159   // End check for immutable
 160
 161   load();
 162 }
 163
 164 void KDesktopConfig::load()
 165 {
 166 #ifdef Q_WS_X11
 167   // get number of desktops
 168   NETRootInfo info( QX11Info::display(), NET::NumberOfDesktops | NET::DesktopNames );
 169   int n = info.numberOfDesktops();
 170
 171   _numInput->setValue(n);
 172
 173   for(int i = 1; i <= maxDesktops; i++)
 174   {
 175     QString name = QString::fromUtf8(info.desktopName(i));
 176     _nameInput[i-1]->setText(name);
 177   }
 178
 179   for(int i = 1; i <= maxDesktops; i++)
 180   {
 181     _nameLabel[i-1]->setVisible(i <= n);
 182     _nameInput[i-1]->setVisible(i <= n);
 183   }
 184   emit changed(false);
 185
 186 #if 0
 187   KSharedConfig::Ptr desktopConfig = KSharedConfig::openConfig("kdesktoprc", KConfig::NoGlobals);
 188   desktopConfig->setGroup("Mouse Buttons");
 189   _wheelOption->setChecked(desktopConfig->readEntry("WheelSwitchesWorkspace", false));
 190
 191   _wheelOptionImmutable = desktopConfig->isEntryImmutable("WheelSwitchesWorkspace");
 192
 193   if (_wheelOptionImmutable || n<2)
 194      _wheelOption->setEnabled(false);
 195 #endif
 196 #else
 197   _numInput->setValue(1);
 198 #endif
 199 }
 200
 201 void KDesktopConfig::save()
 202 {
 203 #ifdef Q_WS_X11
 204   NETRootInfo info( QX11Info::display(), NET::NumberOfDesktops | NET::DesktopNames );
 205   // set desktop names
 206   for(int i = 1; i <= maxDesktops; i++)
 207   {
 208     info.setDesktopName(i, (_nameInput[i-1]->text()).toUtf8());
 209     info.activate();
 210   }
 211   // set number of desktops
 212   info.setNumberOfDesktops(_numInput->value());
 213   info.activate();
 214
 215   XSync(QX11Info::display(), false);
 216
 217 #if 0
 218   KSharedConfig::Ptr desktopConfig = KSharedConfig::openConfig("kdesktoprc");
 219   desktopConfig->setGroup("Mouse Buttons");
 220   desktopConfig->writeEntry("WheelSwitchesWorkspace", _wheelOption->isChecked());
 221
 222   // Tell kdesktop about the new config file
 223   int konq_screen_number = 0;
 224   if (QX11Info::display())
 225      konq_screen_number = DefaultScreen(QX11Info::display());
 226
 227   QByteArray appname;
 228   if (konq_screen_number == 0)
 229       appname = "org.kde.kdesktop";
 230   else
 231       appname = "org.kde.kdesktop-screen-" + QByteArray::number( konq_screen_number );
 232
 233   org::kde::kdesktop::Desktop desktop(appname, "/Desktop", QDBusConnection::sessionBus());
 234   desktop.configure();
 235 #endif
 236
 237   emit changed(false);
 238 #endif
 239 }
 240
 241 void KDesktopConfig::defaults()
 242 {
 243   int n = 4;
 244   _numInput->setValue(n);
 245
 246   for(int i = 0; i < maxDesktops; i++)
 247     _nameInput[i]->setText(i18n("Desktop %1", i+1));
 248
 249   for(int i = 0; i < maxDesktops; i++)
 250   {
 251     _nameLabel[i]->setVisible(i < n);
 252     _nameInput[i]->setVisible(i < n);
 253   }
 254
 255 #if 0
 256   _wheelOption->setChecked(false);
 257   if (!_wheelOptionImmutable)
 258     _wheelOption->setEnabled(true);
 259 #endif
 260
 261   emit changed(false);
 262 }
 263
 264 void KDesktopConfig::slotValueChanged(int n)
 265 {
 266   for(int i = 0; i < maxDesktops; i++)
 267   {
 268     _nameLabel[i]->setVisible(i < n);
 269     _nameInput[i]->setVisible(i < n);
 270     if(i<n && _nameInput[i]->text().isEmpty())
 271       _nameInput[i]->setText(i18n("Desktop %1", i+1));
 272   }
 273 #if 0
 274   if (!_wheelOptionImmutable)
 275     _wheelOption->setEnabled(n>1);
 276 #endif
 277   emit changed(true);
 278 }
 279
 280 #include "desktop.moc"
 281