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containerarea.cpp

/*****************************************************************

Copyright (c) 1996-2003 the kicker authors. See file AUTHORS.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

******************************************************************/

#include <math.h>
#include <unistd.h>

#include <qpixmap.h>
#include <qfileinfo.h>
#include <qtimer.h>
#include <qfile.h>
#include <qstyle.h>
#include <qtextstream.h>
#include <qpainter.h>
#include <qwmatrix.h>

#include <kapplication.h>
#include <kglobal.h>
#include <kstandarddirs.h>
#include <kurl.h>
#include <kdebug.h>
#include <kdesktopfile.h>
#include <kiconeffect.h>
#include <kmimetype.h>
#include <kprocess.h>
#include <krootpixmap.h>
#include <kpixmap.h>
#include <klocale.h>
#include <kio/netaccess.h>
#include <kservice.h>
#include <kurldrag.h>

#include "kicker.h"
#include "pluginmanager.h"
#include "dirdrop_mnu.h"
#include "exe_dlg.h"
#include "panel.h"
#include "panelbutton.h"
#include "container_applet.h"
#include "container_button.h"

#include "containerarea.h"
#include "containerarea.moc"

// for multihead
extern int kicker_screen_number;

ContainerArea::ContainerArea( KConfig* _c, QWidget* parent, QPopupMenu* opMenu, const char* name )
    : Panner( parent, name )
    , _block_relayout(false)
    , _moveAC(0)
    , _pos(::Left)
    , _config(_c)
    , _dragIndicator(0)
    , _dragMoveAC(0)
    , _dragMoveOffset(QPoint(0,0))
    , _opMenu(opMenu)
    , _rootPixmap(0)
    , _transparent(false)
    , _useBgTheme(false)
    , _bgSet(false)
{
    setBackgroundOrigin( WidgetOrigin );
    viewport()->setBackgroundOrigin( AncestorOrigin );

    setAcceptDrops( !Kicker::kicker()->isImmutable() );
    connect(&_autoScrollTimer, SIGNAL(timeout()), SLOT(autoScroll()));
    connect(kapp, SIGNAL(kdisplayPaletteChanged()), SLOT(setBackgroundTheme()));
}

void ContainerArea::initialize( PanelContainer* panel, bool useDefaultConfig )
{
    // restore applet layout or load a default panel layout
    _config->setGroup("General");

    if(_config->hasKey("Applets")) {
        loadContainerConfig();
    } else {
        defaultContainerConfig( panel, useDefaultConfig );
    }
}

ContainerArea::~ContainerArea()
{
    // don't emit signals from destructor
    blockSignals( true );
    // clear applets
    removeAllContainers();
}

void ContainerArea::defaultContainerConfig( PanelContainer* panel, bool useDefaultConfig )
{
    // only the main area has a default container config
    if ( !useDefaultConfig || panel == 0 ) {
        removeAllContainers();
        layoutChildren();
        saveContainerConfig();
        return;
    }

    // clear applets
    removeAllContainers();

    ContainerList containers;

    containers.append( new KMenuButtonContainer( _opMenu, viewport() ) );
    containers.append( new DesktopButtonContainer( _opMenu, viewport() ) );

    QRect r = panel->initialGeometry( panel->position(), panel->alignment(), panel->xineramaScreen() );

    int dsize;
    if (orientation() == Horizontal)
        dsize = r.width();
    else
        dsize = r.height();

    dsize -= 560;

    QStringList buttons;

    QFile f(locate("data", "kicker/default-apps"));
    if (f.open(IO_ReadOnly)) {
        QTextStream is(&f);

        while (!is.eof())
            buttons << is.readLine();

        f.close();
    } else {
        buttons << "kde-Home.desktop";
        buttons << "kde-konqbrowser.desktop";
        buttons << "kde-KMail.desktop";
        buttons << "kde-kword.desktop";
        buttons << "kde-Help.desktop";
    }

    int size = dsize;
    for (QStringList::ConstIterator it = buttons.begin(); it != buttons.end(); ++it) {
        size -= 42;
        if (size <= 0)
            break;

        BaseContainer *button;
        KService::Ptr service = KService::serviceByStorageId(*it);
        if (!service) {
            // look for a special button
            QString s = locate("appdata", *it);
            if (s.isEmpty()) continue;
            QString itExt = (*it).section('/', 1);
            button = new ExtensionButtonContainer(itExt, _opMenu, viewport());
        }
        else
            button = new ServiceButtonContainer(service, _opMenu, viewport());

        if (button->isValid())
            containers.append( button );
        else
            delete button;
    }

    PluginManager* manager = PluginManager::pluginManager();

    // pager applet
    containers.append( manager->createAppletContainer(
        "minipagerapplet.desktop",
        true,
        QString::null,
        _opMenu,
        viewport() ) );

    // taskbar applet
    containers.append( manager->createAppletContainer(
        "taskbarapplet.desktop",
        true,
        QString::null,
        _opMenu,
        viewport() ) );

    // system tray applet
    AppletContainer *a = manager->createAppletContainer(
        "systemtrayapplet.desktop",
        true,
        QString::null,
        _opMenu,
        viewport() );
    a->setFreeSpace( 1 );
    containers.append( a );

    // clock applet
    a = manager->createAppletContainer(
        "clockapplet.desktop",
        true,
        QString::null,
        _opMenu,
        viewport() );
    a->setFreeSpace( 1 );
    containers.append( a );

    if( QApplication::reverseLayout() ) {
         ContainerIterator it(containers);
         it.toLast();
         for( ; it.current(); --it ) {
             addContainer( it.current() );
         }
    } else {
        ContainerIterator it(containers);
        for( ; it.current(); ++it ) {
             addContainer( it.current() );
        }
    }

    layoutChildren();
    saveContainerConfig();
}

void ContainerArea::saveContainerConfig( bool layoutOnly )
{
//    kdDebug(1210) << "ContainerArea::saveContainerConfig( " << layoutOnly << " )" << endl;

    // build the applet list
    QStringList alist;

    for( ContainerIterator it(_containers); it.current(); ++it )
    {
        BaseContainer* a = it.current();

        alist.append( a->appletId() );

        KConfigGroup group( _config, a->appletId().latin1() );
        a->saveConfiguration( group, layoutOnly );
    }

    KConfigGroup group( _config, "General" );
    group.writeEntry("Applets", alist);

    _config->sync();
}

void ContainerArea::loadContainerConfig()
{
    removeAllContainers();

    // read applet list
    KConfigGroup group( _config, "General" );
    QStringList alist = group.readListEntry("Applets");

    // now restore the applets
    for( QStringList::Iterator it = alist.begin(); it != alist.end(); ++it )
    {
        QString appletId(*it);

        // is there a config group for this applet?
        if (!_config->hasGroup(appletId)) continue;

        KConfigGroup group(_config, appletId.latin1());

        BaseContainer* a = 0;

        int sep = appletId.findRev('_');
        Q_ASSERT(sep != -1);
        QString appletType = appletId.left(sep);

        // create a matching applet container
        if (appletType == "KMenuButton")
            a = new KMenuButtonContainer(_opMenu, viewport());
        else if (appletType == "DesktopButton")
            a = new DesktopButtonContainer(_opMenu, viewport());
        else if (appletType == "WindowListButton")
            a = new WindowListButtonContainer(_opMenu, viewport());
        else if ((appletType == "BookmarksButton") && kapp->authorizeKAction("bookmarks"))
            a = new BookmarksButtonContainer(_opMenu, viewport());
        else if (appletType == "ServiceButton")
            a = new ServiceButtonContainer(group, _opMenu, viewport());
        else if (appletType == "URLButton")
            a = new URLButtonContainer(group, _opMenu, viewport());
        else if (appletType == "BrowserButton")
            a = new BrowserButtonContainer(group, _opMenu, viewport());
        else if (appletType == "ServiceMenuButton")
            a = new ServiceMenuButtonContainer(group, _opMenu, viewport());
        else if (appletType == "ExeButton")
            a = new NonKDEAppButtonContainer(group, _opMenu, viewport());
        else if (appletType == "ExtensionButton")
            a = new ExtensionButtonContainer(group, _opMenu, viewport());
        else if (appletType == "Applet")
            a = PluginManager::pluginManager()->createAppletContainer(
                   group.readPathEntry("DesktopFile"),
                   true, // isStartup
                   group.readPathEntry("ConfigFile"),
                   _opMenu,
                   viewport() );
        if (a && a->isValid()) {
            a->setAppletId(appletId);
            a->loadConfiguration(group);
            addContainer(a);
        }
        else {
            delete a;
        }
    }

    layoutChildren();
}

void ContainerArea::removeAllContainers()
{
    while ( !_containers.isEmpty() ) {
      BaseContainer* b = _containers.first();
      _containers.removeRef( b );
      delete b;
    }
    emit sizeHintChanged();
}

void ContainerArea::configure()
{
    setBackgroundTheme();
    repaint();

    for( ContainerIterator it(_containers); it.current(); ++it ) {
        (*it)->configure();
    }
    updateContainersBackground();
}

void ContainerArea::addKMenuButton()
{
    KMenuButtonContainer *b = new KMenuButtonContainer(_opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addDesktopButton()
{
    DesktopButtonContainer *b = new DesktopButtonContainer(_opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addWindowListButton()
{
    WindowListButtonContainer *b = new WindowListButtonContainer(_opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addBookmarksButton()
{
    BookmarksButtonContainer *b = new BookmarksButtonContainer(_opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addServiceButton(const QString& desktopFile)
{
    ServiceButtonContainer *b = new ServiceButtonContainer(desktopFile, _opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addURLButton(const QString &url)
{
    URLButtonContainer *b = new URLButtonContainer(url, _opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addBrowserButton( const QString &startDir, const QString& icon )
{
    BrowserButtonContainer *b = new BrowserButtonContainer(startDir, _opMenu, icon, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addServiceMenuButton(const QString& relPath)
{
    ServiceMenuButtonContainer *b = new ServiceMenuButtonContainer(relPath, _opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addNonKDEAppButton(const QString &filePath, const QString &icon,
                                       const QString &cmdLine, bool inTerm)
{
    NonKDEAppButtonContainer *b = new NonKDEAppButtonContainer(filePath, icon, cmdLine, inTerm, _opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addExtensionButton(const QString& df)
{
    ExtensionButtonContainer *b = new ExtensionButtonContainer(df, _opMenu, viewport());
    addContainer(b);
    moveToFirstFreePosition(b);
    scrollTo(b);
    saveContainerConfig();
}

void ContainerArea::addApplet( const QString& desktopFile )
{
    AppletContainer* a = PluginManager::pluginManager()->createAppletContainer(
        desktopFile,
        false,         // not startup
        QString::null, // no config
        _opMenu,
        viewport() );

    if(!a) return;

    addContainer(a);
    moveToFirstFreePosition(a);
    scrollTo(a);
    saveContainerConfig();
}

void ContainerArea::addContainer(BaseContainer* a)
{
    if (!a) return;

    if (a->appletId().isNull())
        a->setAppletId(createUniqueId(a->appletType()));

    _containers.append(a);

    emit sizeHintChanged();

    connect(a, SIGNAL(moveme(BaseContainer*) ),
            SLOT( startContainerMove(BaseContainer*)));
    connect(a, SIGNAL(removeme(BaseContainer*) ),
            SLOT( slotRemoveContainer(BaseContainer*)));
    connect(a, SIGNAL(requestSave()),
            SLOT(slotSaveContainerConfig()));

    if (a->inherits("ExternalAppletContainer"))
        connect(a, SIGNAL(embeddedWindowDestroyed() ), this,
                SLOT( embeddedWindowDestroyed()));
    if (a->inherits("InternalAppletContainer") ||
        a->inherits("ExternalAppletContainer"))
        connect(a, SIGNAL(updateLayout() ), this,
                SLOT( slotLayoutChildren()));

    a->setBackgroundOrigin( AncestorOrigin );
    a->slotSetOrientation( orientation() );
    a->slotSetPopupDirection( popupDirection() );
    a->configure();
    addChild(a);
    a->show();
}

void ContainerArea::removeContainer(BaseContainer *a)
{
    if (a) {
        removeChild(a);
        a->slotRemoved();
        _containers.removeRef(a);
        a->deleteLater();
        a = 0;
    }

    updateContainerList();
    emit sizeHintChanged();
    layoutChildren();
    saveContainerConfig(true);
}

QString ContainerArea::createUniqueId(const QString& appletType) const
{
    QString idBase = appletType + "_%1";
    QString newId;
    int i = 0;
    bool unique = false;

    while(!unique) {
        i++;
        newId = idBase.arg(i);

        unique = true;
        for( ContainerIterator it(_containers); it.current() ; ++it ) {
            BaseContainer* b = it.current();
            if (b->appletId() == newId) {
                unique = false;
                break;
            }
        }
    }
    return newId;
}

void ContainerArea::disableStretch()
{
    for( ContainerIterator it(_containers); it.current() ; ++it ) {
        BaseContainer* b = it.current();
        if( orientation() == Horizontal ) {
            if( QApplication::reverseLayout() )
                b->move( b->geometry().right() - b->widthForHeight( height() ) + 1, b->y() );
            b->resize( b->widthForHeight(height()), height() );
        } else {
            b->resize( width(), b->heightForWidth(width()) );
        }
    }
}

void ContainerArea::restoreStretch()
{
    ContainerIterator it(_containers);
    if( !QApplication::reverseLayout() || orientation() == Vertical ) {
        BaseContainer* next = 0;
        for( it.toLast(); it.current(); --it ) {
            BaseContainer* b = it.current();
            if( b->isStretch() ) {
                if( orientation() == Horizontal ) {
                    if( next ) b->resize( next->x() - b->x(), height() );
                    else       b->resize( width()   - b->x(), height() );
                } else {
                    if( next ) b->resize( width(), next->y() - b->y() );
                    else       b->resize( width(),  height() - b->y() );
                }
            }
            next = b;
        }
    } else {
        BaseContainer* prev = 0;
        for( it.toFirst(); it.current(); ++it ) {
            BaseContainer* b = it.current();
            if( b->isStretch() ) {
                if( prev )
                    b->setGeometry( QRect(
                        prev->geometry().right() + 1, 0,
                        b->geometry().right() - prev->geometry().right(), height() ) );
                else
                    b->setGeometry( QRect(
                        0, 0,
                        b->geometry().right() - 0, height() ) );
            }
            prev = b;
        }
    }
}

void ContainerArea::startContainerMove(BaseContainer *a)
{
    if (!a) return;

    _moveAC = a;

    if(_moveAC->inherits("ButtonContainer")) {
        static_cast<ButtonContainer*>(_moveAC)->button()->setZoomEnabled(false);
    }

    setMouseTracking(true);
    grabMouse(sizeAllCursor);

    _block_relayout = true;
    disableStretch();
    a->raise();
}

void ContainerArea::stopContainerMove(BaseContainer *b)
{
    if (_moveAC != b) return;

    _autoScrollTimer.stop();
    releaseMouse();
    setCursor(arrowCursor);
    setMouseTracking(false);

    if(_moveAC->inherits("ButtonContainer"))
    {
      static_cast<ButtonContainer*>(_moveAC)->completeMoveOperation();
        static_cast<ButtonContainer*>(_moveAC)->button()->setZoomEnabled(true);
    }

    _moveAC = 0;
    _block_relayout = false;

    updateContainerList();
    restoreStretch();
    updateContainersBackground();
    saveContainerConfig(true);
}

void ContainerArea::mouseReleaseEvent(QMouseEvent *)
{
    if (_moveAC)
      stopContainerMove(_moveAC);
}

void ContainerArea::mouseMoveEvent(QMouseEvent *ev)
{
    if (!_moveAC) {
      Panner::mouseMoveEvent(ev);
      return;
    }

    int s;
    if (orientation() == Horizontal)
      s = width();
    else
      s = height();

    if (ev->state() & ShiftButton && s >= minimumUsedSpace( orientation(), width(), height() )) {

      if (orientation() == Horizontal) {
          int oldX = _moveAC->x() + _moveAC->moveOffset().x();
          int x = ev->pos().x();
          moveContainerPush(_moveAC, x - oldX);
      }
      else if (orientation() == Vertical) {
          int oldY = _moveAC->y() + _moveAC->moveOffset().y();
          int y = ev->pos().y();
          moveContainerPush(_moveAC, y - oldY);
      }
    }
    else {

      if (orientation() == Horizontal) {
          int oldX = _moveAC->x() + _moveAC->moveOffset().x();
          int x = ev->pos().x();
          moveContainerSwitch(_moveAC, x - oldX);
      }
      else if (orientation() == Vertical) {
          int oldY = _moveAC->y() + _moveAC->moveOffset().y();
          int y = ev->pos().y();
          moveContainerSwitch(_moveAC, y - oldY);
      }
    }
}

void ContainerArea::moveContainerSwitch(BaseContainer* moving, int distance)
{
    int nx = 0;
    int ny = 0;

    const bool horizontal = orientation() == Horizontal;
    const bool rtl        = distance < 0; // left to right
    const int  dir        = distance < 0 ? -1 : 1;

    _containers.findRef(moving);
    BaseContainer* next = rtl ? _containers.prev()
                              : _containers.next();
    BaseContainer* last = moving;

    while (next) {
      int switchMargin = 0;

      // calculate the position and width of the 'virtual' container
      // containing 'moving' and 'next'.
      int tpos = rtl ? (horizontal ? next->x()
                                   : next->y())
                     : (horizontal ? next->x() - moving->width()
                                   : next->y() - moving->height());

      int tsize = horizontal ? moving->width()  + next->width()
                             : moving->height() + next->height();

      // determine the middle of the containers.
      int tmiddle = tpos + tsize/2;
      int movingMiddle = horizontal ? moving->x() + distance + moving->width() /2
                              : moving->y() + distance + moving->height()/2;

      // move 'next' from the right side of the virtual container to
      // the left side if the middle of 'moving' has moved far enough
      // to the left, i.e. past the middle of the virtual container
      // plus the switchMargin. The switchMargin prevents rapidly
      // switching when 'moving' and 'next' have the same size.
      if ( rtl && movingMiddle > tmiddle + switchMargin
       || !rtl && movingMiddle < tmiddle + switchMargin)
          break;

      if (horizontal)
          viewportToContents(next->x() - dir * moving->width(), next->y(), nx, ny);
      else
          viewportToContents(next->x(), next->y() - dir * moving->height(), nx, ny);
      moveChild(next, nx, ny);

      // store 'next', because it may become null in the next step, so that we
      // can't iterate back.
      last = next;
      next = rtl ? _containers.prev()
                 : _containers.next();
    }

    int newPos;

    if (last != moving) {
      newPos = rtl ? (horizontal ? QMIN(last->x() - moving->width(),  moving->x() + distance)
                                 : QMIN(last->y() - moving->height(), moving->y() + distance))
                   : (horizontal ? QMAX(last->x() + last->width(),  moving->x() + distance)
                                 : QMAX(last->y() + last->height(), moving->y() + distance));

      // Move 'moving' to its new position in the container list.
      _containers.removeRef(moving);
      _containers.insert(_containers.findRef(last) + (rtl ? 0 : 1), moving);
    }
    else
      if (horizontal)
          if (rtl && next && moving->x() + distance < next->x() + next->width())
            newPos = next->x() + next->width();
          else if (!rtl && next && moving->x() + distance >= next->x() - moving->width())
            newPos = next->x() - moving->width();
          else
            newPos = moving->x() + distance;
      else
          if (rtl && next && moving->y() + distance < next->y() + next->height())
            newPos = next->y() + next->height();
          else if (!rtl && next && moving->y() + distance >= next->y() - moving->height())
            newPos = next->y() - moving->height();
          else
            newPos = moving->y() + distance;

    bool scroll = false;
    if (rtl)
      if (newPos - 80 <= 0)
          scroll = true;
    else
      if (newPos + 80 >= (horizontal ? width()  - moving->width()
                                     : height() - moving->height()))
          scroll = true;

    // Make sure the container isn't moved outside of the panel.
    if (horizontal) {
      viewportToContents(newPos, moving->y(), nx, ny);
      nx = rtl ? QMAX(nx, 0)
               : QMIN(nx, contentsWidth() - moving->width());
    }
    else {
      viewportToContents(moving->x(), newPos, nx, ny);
      ny = rtl ? QMAX(ny, 0)
               : QMIN(ny, contentsHeight() - moving->height());
    }

    moveChild(moving, nx, ny);

    if (scroll) {
      if (!_autoScrollTimer.isActive())
          _autoScrollTimer.start(50);

      if (horizontal)
          scrollBy(dir*10, 0);
      else
          scrollBy(0, dir*10);
    }
}

int ContainerArea::moveContainerPush(BaseContainer* a, int distance)
{
    // Point the iterator 'it' to 'a'.
    ContainerIterator it(_containers);
    while (it.current() && it.current() != a)
      ++it;

    return moveContainerPushRecursive(it, distance);
}

int ContainerArea::moveContainerPushRecursive(ContainerIterator it, int distance)
{
    if (distance == 0)
      return 0;

    const bool horizontal = orientation() == Horizontal;
    const bool rtl        = distance < 0; // right to left

    int available; // Space available for the container to move.
    int moved;     // The actual distance the container will move.
    BaseContainer* cur = it.current();
    BaseContainer* next = rtl ? --it
                              : ++it;

    if (!next)
      available = rtl ? (horizontal ? -cur->x()
                                    : -cur->y())
                      : (horizontal ? width()  - cur->x() - cur->width()
                                    : height() - cur->y() - cur->height());
    else {
      available = rtl ? (horizontal ? next->x() - cur->x() + next->width()
                                    : next->y() - cur->y() + next->height())
                      : (horizontal ? next->x() - cur->x() - cur->width()
                                    : next->y() - cur->y() - cur->height());
      if ( rtl && distance - available < 0
       || !rtl && distance - available > 0)
          available += moveContainerPushRecursive(it, distance - available);
    }
    moved = rtl ? QMAX(distance, available)
                : QMIN(distance, available);

    if (horizontal)
      moveChild(cur, cur->x() + moved, cur->y());
    else
      moveChild(cur, cur->x(), cur->y() + moved);

    return moved;
}

int ContainerArea::position() const
{
    return static_cast<int>(_pos);
}

bool ContainerArea::transparent() const
{
  return _transparent;
}

bool ContainerArea::useBackgroundTheme() const
{
    return _useBgTheme;
}

Direction ContainerArea::popupDirection() const
{
    Direction dir;
    switch (_pos)
      {
      case ::Left:
          dir = ::dRight;
          break;
      case ::Right:
          dir = ::dLeft;
          break;
      case ::Top:
          dir = ::dDown;
          break;
      case ::Bottom:
      default:
          dir = ::dUp;
          break;
      }
    return dir;
}

void ContainerArea::slotLayoutChildren()
{
    layoutChildren();
    updateContainersBackground();
    emit sizeHintChanged();
}

void ContainerArea::embeddedWindowDestroyed()
{
    if (sender() && sender()->inherits("ExternalAppletContainer"))
      removeContainer((ExternalAppletContainer*)sender());
}

void ContainerArea::layoutChildren()
{
    if (_block_relayout) return;

//    kdDebug(1210) << "ContainerArea::layoutChildren()" << endl;

    QSize newsize = size();
    int mus = minimumUsedSpace( orientation(), width(), height() );

    if (orientation() == Horizontal) {
      if (newsize.width() < mus)
          newsize.setWidth(mus);
    }
    else {
      if (newsize.height() < mus)
          newsize.setHeight(mus);
    }
    resizeContents(newsize.width(), newsize.height());

    int pos = 0;

    int occupiedspace = 0;
    int freespace = totalFreeSpace();

    ContainerIterator it(_containers);
    for ( ; it.current(); ++it )
      {
          BaseContainer* a = (*it);

          // get pointer to the nextapplet
          ++it;
          BaseContainer *next = (*it);
          --it;

            float fs = a->freeSpace();
            if(fs > 1) fs = 1;

            float nfs = 0;
            if(next) {
                nfs = next->freeSpace();
                if(nfs > 1) nfs = 1;
            }

          double fspace = fs * freespace;

          if ((fspace - floor(fspace)) > 0.5)
            fspace += 1;
          pos = static_cast<int>(fspace) + occupiedspace;

          if (orientation() == Horizontal) {
            moveChild(a, pos, 0);
            int w = a->widthForHeight(height());
            if( a->isStretch() ) {
                if (next)
                  a->resize(w + int((nfs - fs)*freespace), height());
                else
                  a->resize(width() - a->x(), height()); // FIXME
            }
            else
                a->resize(w, height());
            occupiedspace += w;
          }
          else {
            moveChild(a, 0, pos);
            int h = a->heightForWidth(width());
            if( a->isStretch() ) {
                if (next)
                  a->resize(width(), h + int((nfs - fs)*freespace));
                else
                  a->resize(width(), height() - a->y());
            }
            else
                a->resize(width(), h);
            occupiedspace += h;
          }
      }
}

void ContainerArea::dragEnterEvent(QDragEnterEvent *ev)
{
    ev->accept(KURLDrag::canDecode(ev));
    disableStretch();

    if (!_dragIndicator)
        _dragIndicator = new DragIndicator(this);
    if (orientation() == Horizontal)
        _dragIndicator->setPreferredSize(QSize(height(), height()));
    else
        _dragIndicator->setPreferredSize(QSize(width(), width()));

    _dragMoveOffset =
        QPoint(_dragIndicator->width()/2, _dragIndicator->height()/2);

    // Find the container before the position of the dragindicator.
    ContainerIterator it(_containers);
    it.toLast();
    while (it.current())
    {
        BaseContainer* a = it.current();

        if (orientation() == Horizontal &&
                a->x() < ev->pos().x() - _dragMoveOffset.x()
         || orientation() == Vertical &&
                a->y() < ev->pos().y() - _dragMoveOffset.y() )
        {
            _dragMoveAC = a;
            break;
        }

        --it;
    }

    if (orientation() == Horizontal)
        moveDragIndicator((ev->pos() - _dragMoveOffset).x());
    else
        moveDragIndicator((ev->pos() - _dragMoveOffset).y());

    _dragIndicator->show();
    QTimer::singleShot(30000, _dragIndicator, SLOT(hide()));
}

void ContainerArea::dragMoveEvent(QDragMoveEvent* ev)
{
    if (orientation() == Horizontal)
        moveDragIndicator((ev->pos() - _dragMoveOffset).x());
    else
        moveDragIndicator((ev->pos() - _dragMoveOffset).y());
}

void ContainerArea::dragLeaveEvent(QDragLeaveEvent*)
{
    _dragIndicator->hide();
    restoreStretch();
}

void ContainerArea::dropEvent(QDropEvent *ev)
{
    KURL::List uriList;

    if (!KURLDrag::decode(ev, uriList)) {
      _dragIndicator->hide();
      restoreStretch();
      return;
    }

    kdDebug() << "dropEvent()" << endl;

    QObject *parent = ev->source() ? ev->source()->parent() : 0;
    QObject *container = parent;
    while (parent && (parent != this))
       parent = parent->parent();

    if (parent) {
      // Drag originates from ourselves
      ContainerIterator it(_containers);
      while (it.current() && (it.current() != container))
          ++it;

      BaseContainer *a = it.current();
      if (a) {
          // Move container a
          int s;
          if (orientation() == Horizontal)
            s = width();
          else
            s = height();

          _block_relayout = true;
          if (orientation() == Horizontal) {
            int oldX = a->x();
            int x = _dragIndicator->x();
            moveContainerSwitch(a, x - oldX);
          }
          else if (orientation() == Vertical) {
            int oldY = a->y();
            int y = _dragIndicator->y();
            moveContainerSwitch(a, y - oldY);
          }

          _dragIndicator->hide();
          _block_relayout = false;
          updateContainerList();
          restoreStretch();
          saveContainerConfig(true);
          return;
        }
    }

    KURL::List::ConstIterator it(uriList.begin());
    for (; it != uriList.end(); ++it) {
      const KURL &url = *it;

      // Create a new PanelButton for this URL.
      BaseContainer* a = 0;

      // see if it's a executable or directory
      if (url.isLocalFile()) {
          QFileInfo fi(url.path());
          if (fi.isDir()) { // directory
            switch (PanelDirDropMenu().exec(mapToGlobal(ev->pos()))) {
            case PanelDirDropMenu::Browser:
                a = new BrowserButtonContainer(url.path(), _opMenu,
                               KMimeType::iconForURL(url), viewport());
                break;
            case PanelDirDropMenu::Url:
                a = new URLButtonContainer(url.url(), _opMenu, viewport());
                break;
            default: ;
            }
          }
          else if (fi.isExecutable()) { // non-KDE executable
            QString pixmapFile;
            KMimeType::pixmapForURL(url, 0, KIcon::Panel, 0,
                                    KIcon::DefaultState, &pixmapFile);
            PanelExeDialog dlg(url.path(), pixmapFile,
                               QString::null, false, 0);
            if (dlg.exec() == QDialog::Accepted) {
                // KIconloader returns a full path, we only want the name
                QFileInfo iconfi(dlg.icon());
                a = new NonKDEAppButtonContainer(dlg.command(), iconfi.fileName(),
                                         dlg.commandLine(), dlg.useTerminal(),
                                         _opMenu, viewport());
            }
          }
          else if ( KMimeType::findByURL(url)->name() == "application/x-desktop" ) {
            // a local desktop file being dragged from an external program.
            // Make a copy first.
            KDesktopFile df(url.path());
            KURL newUrl;
            newUrl.setPath(copyDesktopFile(url));
            if (df.readType() == "Link")
               a = new URLButtonContainer(newUrl.url(), _opMenu, viewport());
            else
               a = new ServiceButtonContainer(newUrl.path(), _opMenu, viewport());
          }
          else // some unknown local file
            a = new URLButtonContainer(url.url(), _opMenu, viewport());
      }
      else // a internet URL
          a = new URLButtonContainer(url.url(), _opMenu, viewport());

      if (!a) {
          _dragIndicator->hide();
            restoreStretch();
          return;
      }

        // Move the neighbour containers if there isn't enough space
        if (_dragIndicator->size() != _dragIndicator->preferredSize()) {
            int neededSpace;
            int distanceMoved;
            BaseContainer* next;

            if (_dragMoveAC) {
               _containers.findRef(_dragMoveAC);
                next = _containers.next();
            } else {
                next = _containers.first();
            }

            if (orientation() == Horizontal) {
                neededSpace = _dragIndicator->preferredSize().width() - _dragIndicator->width();
                if (_dragMoveAC) {
                    distanceMoved = moveContainerPush(_dragMoveAC, -neededSpace/2);
                    _dragIndicator->move(
                         _dragIndicator->x() + distanceMoved,
                         _dragIndicator->y());
                    neededSpace += distanceMoved;
                }
                if (next)
                    neededSpace -= moveContainerPush(next, neededSpace);
                if (_dragMoveAC) {
                    distanceMoved = moveContainerPush(_dragMoveAC, -neededSpace);
                   _dragIndicator->move(
                       _dragIndicator->x() + distanceMoved,
                       _dragIndicator->y());
                }
            } else {
                neededSpace = _dragIndicator->preferredSize().height() - _dragIndicator->height();
                if (_dragMoveAC) {
                    distanceMoved = moveContainerPush(_dragMoveAC, -neededSpace/2);
                    _dragIndicator->move(
                        _dragIndicator->x(),
                        _dragIndicator->y() + distanceMoved);
                    neededSpace += distanceMoved;
                }
                if (next)
                    neededSpace -= moveContainerPush(next, neededSpace);
                if (_dragMoveAC) {
                    distanceMoved = moveContainerPush(_dragMoveAC, -neededSpace);
                    _dragIndicator->move(
                        _dragIndicator->x(),
                        _dragIndicator->y() + distanceMoved);
                }
            }
        }

        addContainer(a);
        moveChild(a, _dragIndicator->x(), _dragIndicator->y());
        updateContainerList();
        saveContainerConfig();
    }
    _dragIndicator->hide();
    restoreStretch();
    layoutChildren();
}

void ContainerArea::resizeEvent(QResizeEvent *ev)
{
    Panner::resizeEvent(ev);
    layoutChildren();
    setBackgroundTheme();
}

void ContainerArea::setBackgroundTheme()
{
    _bgSet=false;
    // set background pixmap
    KConfig* config = KGlobal::config();
    KConfigGroupSaver saver(config, "General");

    _transparent = config->readBoolEntry("Transparent", false);
    _useBgTheme  = config->readBoolEntry("UseBackgroundTheme", true);

    if ( _transparent ) {
        Panel::the()->setFrameStyle( QFrame::NoFrame );
        if ( !_rootPixmap ) {
            _rootPixmap = new KRootPixmap(this);
            _rootPixmap->setCustomPainting(true);
            connect(_rootPixmap, SIGNAL(backgroundUpdated(const QPixmap&)),
                    SLOT(updateBackground(const QPixmap&)));
            _rootPixmap->start();
        } else {
            _rootPixmap->repaint(true);
            _rootPixmap->start();
        }
        QColor color = config->readColorEntry("TintColor", &colorGroup().mid());
        double tintValue = config->readNumEntry("TintValue", 0) / 100.0;
        _rootPixmap->setFadeEffect( tintValue, color );
        _bgSet=true;
        return;
    } else if ( _rootPixmap ) {
        _rootPixmap->stop();
        Panel::the()->setFrameStyle( QFrame::StyledPanel  | QFrame::Raised );
    }

    bool paletteNeedsUnsetting = true;
    if ( _useBgTheme ) {
        // by keeping the src image static, we can share it among panels and only
        // reload from disk when it actually changes in the config, not every time we
        // get a resize or configure event
        static QString bgStr;
        static QImage srcImage;
        QString newBgStr = locate("appdata", config->readPathEntry("BackgroundTheme", "wallpapers/default.png"));

        if (bgStr != newBgStr)
        {
            bgStr = newBgStr;
            srcImage.load(bgStr);
        }

        if (!srcImage.isNull())
        {
            QImage bgImage = srcImage;

            if (orientation() == Vertical)
            {
                if (config->readBoolEntry("RotateBackground", true))
                {
                    QWMatrix matrix;
                    matrix.rotate(90);
                    bgImage = bgImage.xForm(matrix);
                }

                bgImage = bgImage.scaleWidth( size().width() );
            }
            else
            {
                bgImage = bgImage.scaleHeight( size().height() );
            }

            if (config->readBoolEntry("ColorizeBackground", false))
            {
                colorize(bgImage);
            }
            setPaletteBackgroundPixmap(QPixmap(bgImage));
            QTimer::singleShot(500, this, SLOT(updateContainersBackground()));
            paletteNeedsUnsetting = false;
        }
    }

    if (paletteNeedsUnsetting)
        unsetPalette();
    _bgSet=true;
}

void ContainerArea::colorize(QImage& image)
{
    // mercilessly ripped from the k menu side image colorizing
    KConfig *config = KGlobal::config();
    config->setGroup("WM");
    QColor color = palette().active().highlight();
    QColor activeTitle = config->readColorEntry("activeBackground", &color);
    QColor inactiveTitle = config->readColorEntry("inactiveBackground", &color);

    // figure out which color is most suitable for recoloring to
    int h1, s1, v1, h2, s2, v2, h3, s3, v3;
    activeTitle.hsv(&h1, &s1, &v1);
    inactiveTitle.hsv(&h2, &s2, &v2);
    palette().active().background().hsv(&h3, &s3, &v3);

    if ( (kAbs(h1-h3)+kAbs(s1-s3)+kAbs(v1-v3) < kAbs(h2-h3)+kAbs(s2-s3)+kAbs(v2-v3)) &&
        ((kAbs(h1-h3)+kAbs(s1-s3)+kAbs(v1-v3) < 32) || (s1 < 32)) && (s2 > s1))
        color = inactiveTitle;
    else
        color = activeTitle;

    // limit max/min brightness
    int r, g, b;
    color.rgb(&r, &g, &b);
    int gray = qGray(r, g, b);
    if (gray > 180) {
        r = (r - (gray - 180) < 0 ? 0 : r - (gray - 180));
        g = (g - (gray - 180) < 0 ? 0 : g - (gray - 180));
        b = (b - (gray - 180) < 0 ? 0 : b - (gray - 180));
    } else if (gray < 76) {
        r = (r + (76 - gray) > 255 ? 255 : r + (76 - gray));
        g = (g + (76 - gray) > 255 ? 255 : g + (76 - gray));
        b = (b + (76 - gray) > 255 ? 255 : b + (76 - gray));
    }
    color.setRgb(r, g, b);
    KIconEffect::colorize(image, color, 1.0);
}

QRect ContainerArea::availableSpaceFollowing(BaseContainer* a)
{
    QRect availableSpace = rect();
    BaseContainer* b;

    if (a)
    {
        _containers.findRef(a);
        b = _containers.next();
    }
    else
        b = _containers.first();

    if (orientation() == Horizontal)
    {
        if (a)
            availableSpace.setLeft(a->x() + a->width());
        if (b)
            availableSpace.setRight(b->x() - 1);
    }
    else
    {
        if (a)
            availableSpace.setTop(a->y() + a->height());
        if (b)
            availableSpace.setBottom(b->y() - 1);
    }

    return availableSpace;
}

void ContainerArea::moveDragIndicator(int pos)
{
    QRect availableSpace = availableSpaceFollowing(_dragMoveAC);

    // Move _dragIndicator to position pos, restricted by availableSpace.
    // Resize _dragIndicator if necessary.
    if (orientation() == Horizontal)
    {
        if (availableSpace.size().width() <
                _dragIndicator->preferredSize().width())
        {
            _dragIndicator->resize(availableSpace.size());
            _dragIndicator->move(availableSpace.topLeft());
        }
        else
        {
            int newX = pos;
            _dragIndicator->resize(_dragIndicator->preferredSize());
            newX = QMAX(newX, availableSpace.left());
            newX = QMIN(newX,
                availableSpace.right() + 1 - _dragIndicator->width() );
            _dragIndicator->move(newX, availableSpace.top());
        }
    }
    else
    {
        if (availableSpace.size().height() <
                _dragIndicator->preferredSize().height())
        {
            _dragIndicator->resize(availableSpace.size());
            _dragIndicator->move(availableSpace.topLeft());
        }
        else
        {
            int newY = pos;
            _dragIndicator->resize(_dragIndicator->preferredSize());
            newY = QMAX(newY, availableSpace.top());
            newY = QMIN(newY,
                availableSpace.bottom() + 1 - _dragIndicator->height() );
            _dragIndicator->move(availableSpace.left(), newY);
        }
    }
}

void ContainerArea::moveToFirstFreePosition(BaseContainer* a)
{
    Orientation orient = orientation();

    int w = a->widthForHeight(height());
    int h = a->heightForWidth(width());

    bool stretch = false;
    bool found = false;

    ContainerIterator it(_containers);
    for(; it.current() ; ++it)
      {
          BaseContainer* b = it.current();

          int space = relativeContainerPos(b);

          if (orient == Horizontal) {
            if (space >= w)
                {
                  if(stretch)
                      moveChild(a, b->x() - w, a->y());
                  else
                      moveChild(a, b->x() - space, a->y());
                  found = true;
                  break;
                }
          }
          else {
            if (space >= h)
                {
                  if(stretch)
                      moveChild(a, a->x(), b->y() - h);
                  else
                      moveChild(a, a->x(), b->y() - space);
                  found = true;
                  break;
                }
          }
          stretch = b->isStretch();
      }

    if (found)
      updateContainerList();
    else {
//        kdDebug() << "ContainerArea::moveToFirstFreePosition: trail" << endl;
        BaseContainer* last = _containers.last();

        if(orient == Horizontal)
            moveChild(a, last->x() + last->width() + 1, a->y());
        else
            moveChild(a, a->x(), last->y() + last->height() + 1);
    }
    layoutChildren();
}

BaseContainer* ContainerArea::coversContainer(BaseContainer *a, bool strict)
{
    BaseContainer *b;
    ContainerIterator it(_containers);

    for(; it.current() ; ++it)
      {
          b = (BaseContainer*)it.current();

          if (b == a) continue;

          if ( orientation() == Horizontal ) {
            int bl, br;
            if (strict) {
                bl = b->x();
                br = b->x() + b->width();
            }
            else {
                bl = b->x() + 10;
                br = b->x() + b->width() - 10;
            }

            int btnl = a->x();
            int btnr = btnl + a->width();

            if ((btnl >= bl) && (btnl <= br))
                return b;
            else if ((btnr >= bl) && (btnr <= br))
                return b;
          }
          else {
            int bt, bb;
            if (strict) {
                bt = b->y();
                bb = b->y() + b->height();
            }
            else {
                bt = b->y() + 10;
                bb = b->y() + b->height() - 10;
            }
            int btnt = a->y();
            int btnb = btnt + a->height();

            if ((btnt >= bt) && (btnt <= bb))
                return b;
            else if ((btnb >= bt) && (btnb <= bb))
                return b;
          }
      }
    return 0;
}

void ContainerArea::updateContainerList()
{
    ContainerList sorted;

    while(!_containers.isEmpty())
      {
          BaseContainer *b = 0;
          int pos = 9999;

          ContainerIterator it(_containers);

          for(; it.current() ; ++it)
            {
                BaseContainer* a = it.current();

                if(orientation() == Horizontal)
                  {
                      if (a->x() < pos) {
                        b = a;
                        pos = a->x();
                      }
                  }
                else
                  {
                      if (a->y() < pos) {
                        b = a;
                        pos = a->y();
                      }
                  }
            }

          if (b) {
            sorted.append(b);
            _containers.remove(b);
          }
      }
    _containers = sorted;

    float freespace = totalFreeSpace();
    float fspace = 0;

    ContainerIterator it(_containers);
    for(; it.current() ; ++it)
      {
          fspace += relativeContainerPos(it.current());
          if (fspace < 0) fspace = 0;
            double ssf = ( freespace == 0 ? 0 : fspace/freespace );
            if (ssf > 1) ssf = 1;
            if(ssf < 0) ssf = 0;
          it.current()->setFreeSpace(ssf);
      }
}

void ContainerArea::updateBackground( const QPixmap& pm )
{
    QBrush bgBrush(colorGroup().background(), pm);
    QPalette pal = kapp->palette();
    pal.setBrush(QColorGroup::Background, bgBrush);
    setPalette(pal);

    // because the Pixmap can be smaller as the containerarea
    // we construct a pixmap the same size as we are that every
    // applet or button can use to cut out its background
    _completeBg.resize(width(), height());
    _completeBg.fill(this, 0, 0);

    updateContainersBackground();
}

int ContainerArea::totalFreeSpace() const
{
    int availablespace;

    if(orientation() == Horizontal) {
      if(contentsWidth() > width())
          availablespace = contentsWidth();
      else
          availablespace = width();
    }
    else {
      if (contentsHeight() > height())
          availablespace = contentsHeight();
      else
          availablespace = height();
    }

    int freespace = availablespace - minimumUsedSpace( orientation(), width(), height() );
    if (freespace < 0) freespace = 0;

    return freespace;
}

int ContainerArea::minimumUsedSpace( Orientation o, int w, int h ) const
{
    int usedspace = 0;

    ContainerIterator it(_containers);
    for(; it.current() ; ++it)
      {
          BaseContainer* a = it.current();

          int space;
          if(o == Horizontal) {
            space = a->widthForHeight(h);
          } else
            space = a->heightForWidth(w);

          if (space > 0)
            usedspace += space;
      }
    return usedspace;
}

int ContainerArea::relativeContainerPos(BaseContainer* b) const
{
    if (!b) return 0;
    if (!_containers.contains(b)) return 0;

    uint pos = 0;

    ContainerIterator it(_containers);
    for(; it.current() ; ++it) {
      BaseContainer* a = it.current();

      if (orientation() == Horizontal) {
          if (a == b)  {
            int p = b->x() - pos;
            if (b < 0) return 0;
            return p;
          } else
            pos = a->x() + a->widthForHeight(height());
      } else  {
          if (a == b) {
            int p = b->y() - pos;
            if (b < 0) return 0;
            return p;
          }
          else
            pos = a->y() + a->heightForWidth(width());
      }
    }
    return 0;
}

void ContainerArea::slotSaveContainerConfig()
{
    saveContainerConfig();
}

void ContainerArea::slotRemoveContainer(BaseContainer* a)
{
    removeContainer(a);
}

void ContainerArea::setOrientation(Orientation o)
{
    Panner::setOrientation(o);

//    kdDebug(1210) << "ContainerArea::setOrientation()" << endl;

    ContainerIterator it(_containers);
    for ( ; it.current(); ++it )
        (*it)->slotSetOrientation(o);
}

void ContainerArea::setPosition(Position p)
{
    _pos = p;

    ContainerIterator it(_containers);
    for ( ; it.current(); ++it )
        (*it)->slotSetPopupDirection( popupDirection() );

    repaint();
}

void ContainerArea::setAlignment(Alignment a)
{
    ContainerIterator it(_containers);
    for ( ; it.current(); ++it )
        (*it)->setAlignment( a );
}

void ContainerArea::autoScroll()
{
    if(!_moveAC) return;

    if(orientation() == Horizontal) {
        if(_moveAC->pos().x() <= 80)
            scrollBy(-10, 0);
        else if(_moveAC->pos().x() >= width() - _moveAC->width() - 80)
            scrollBy(10, 0);
    }
    else {
        if(_moveAC->pos().y() <= 80)
            scrollBy(0, -10);
        else if(_moveAC->pos().y() >= height() - _moveAC->height() - 80)
            scrollBy(0, 10);
    }
}

void ContainerArea::scrollTo(BaseContainer* b)
{
    if(!b) return;

    int x, y;
    viewportToContents(b->pos().x(), b->pos().y(), x, y);
    ensureVisible(x, y);
}

void ContainerArea::updateContainersBackground() 
{
    if (!_bgSet ) return;
    
    _block_relayout = true;
    for( ContainerIterator it(_containers); it.current(); ++it ) {

       BaseContainer *a = it.current();
       if ( a->inherits("ExternalAppletContainer") ) 
           static_cast<ExternalAppletContainer*>(a)->setBackground();
       if ( a->inherits("InternalAppletContainer") )
           static_cast<InternalAppletContainer*>(a)->setBackground();
       if ( a->inherits("ButtonContainer") ) {
           PanelButton *b = static_cast<ButtonContainer*>(a)->button();
           b->setBackground();
           b->repaint();
       }
    }
    _block_relayout = false;

    // because we blocked updateLayout() calls  
    // we have to relayout
    layoutChildren();
}

ContainerList ContainerArea::containers( const QString& type ) const
{
    if ( type.isEmpty() || type == "All" )
      return _containers;

    ContainerList list;
    for( ContainerIterator it(_containers); it.current() ; ++it ) {
      if ( it.current()->appletType() == type )
          list.append( it.current() );
    }
    return list;
}

void ContainerArea::repaint()
{
    QTimer::singleShot(500, this, SLOT(setBackgroundTheme()));
    Panner::repaint();
}

const QPixmap* ContainerArea::completeBackgroundPixmap() const 
{
    return &_completeBg;
}

void DragIndicator::paintEvent(QPaintEvent*)
{
    QPainter painter(this);
    QRect rect(0, 0, width(), height());
    style().drawPrimitive( QStyle::PE_FocusRect, &painter, rect, colorGroup(),
                           QStyle::Style_Default, colorGroup().base() );
}

void DragIndicator::mousePressEvent(QMouseEvent*)
{
    hide();
}



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