File indexing completed on 2024-04-14 05:39:39

 // SPDX-License-Identifier: GPL-3.0-or-later
 /*
   Copyright 2017 Martin Koller, kollix@aon.at
 
   This file is part of liquidshell.
 
   liquidshell 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 3 of the License, or
   (at your option) any later version.
 
   liquidshell 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 liquidshell.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include <TaskBar.hxx>
 #include <TaskBarButton.hxx>
 
 #include <KWinCompat.hxx>
 
 #include <QVariant>
 #include <QSpacerItem>
 #include <QDebug>
 
 #include <cmath>
 
 //--------------------------------------------------------------------------------
 
 TaskBar::TaskBar(DesktopPanel *parent)
   : QWidget(parent)
 {
   grid = new QGridLayout(this);
   grid->setSpacing(2);
   grid->setContentsMargins(QMargins());
 
   fill();
 
   connect(parent, &DesktopPanel::rowsChanged, this, &TaskBar::fill);
 
   connect(KWinCompat::self(), &KWinCompat::currentDesktopChanged, this, &TaskBar::fill);
   connect(KWinCompat::self(), &KWinCompat::windowAdded, this, &TaskBar::fill);
   connect(KWinCompat::self(), &KWinCompat::windowRemoved, this, &TaskBar::fill);
 
   connect(KWinCompat::self(), SIGNAL(windowChanged(WId, NET::Properties, NET::Properties2)),
           this, SLOT(windowChanged(WId, NET::Properties, NET::Properties2)));
 }
 
 //--------------------------------------------------------------------------------
 
 void TaskBar::fill()
 {
   QLayoutItem *child;
   while ( (child = grid->takeAt(0)) )
   {
     delete child->widget();
     delete child;
   }
 
   QList<WId> windowsToShow;
   const int MAX_ROWS = qobject_cast<DesktopPanel *>(parentWidget())->getRows();
 
   for (WId wid : KWinCompat::windows())
   {
     KWindowInfo win(wid, NET::WMDesktop | NET::WMWindowType | NET::WMState);
     if ( win.valid(true) && win.isOnCurrentDesktop() &&
         (win.windowType(NET::DesktopMask) != NET::Desktop) &&
         (win.windowType(NET::DockMask) != NET::Dock) &&
         (win.windowType(NET::PopupMenuMask) != NET::PopupMenu) &&
         (win.windowType(NET::UtilityMask) != NET::Utility) &&
          !(win.state() & NET::SkipTaskbar) )
       windowsToShow.append(wid);
   }
 
   if ( windowsToShow.count() == 0 )
   {
     grid->addItem(new QSpacerItem(0, 0,  QSizePolicy::Expanding), 0, 0);
     return;
   }
 
   int row = 0, col = 0, actualRows;
   const int MAX_COLUMNS = std::max(2, static_cast<int>(std::ceil(windowsToShow.count() / float(MAX_ROWS))));
   actualRows = static_cast<int>(std::ceil(windowsToShow.count() / float(MAX_COLUMNS)));
   const int ICON_SIZE = height() / actualRows >= 36 ? 32 : 22;
 
   for (WId wid : windowsToShow)
   {
     TaskBarButton *b = new TaskBarButton(wid);
     b->setIconSize(ICON_SIZE);
     grid->addWidget(b, row, col);
 
     col = (col + 1) % MAX_COLUMNS;
     if ( col == 0 ) row++;
   }
 }
 
 //--------------------------------------------------------------------------------
 
 void TaskBar::windowChanged(WId wid, NET::Properties props, NET::Properties2 props2)
 {
   Q_UNUSED(wid)
   Q_UNUSED(props2)
 
   if ( props & NET::WMDesktop )
     fill();
 }
 
 //--------------------------------------------------------------------------------