messagecomposer/kwindowpositioner.cpp

   1 /*
   2     This file is part of KDE.
   3
   4     Copyright (c) 2005 Cornelius Schumacher <schumacher@kde.org>
   5
   6     This library is free software; you can redistribute it and/or
   7     modify it under the terms of the GNU Library General Public
   8     License as published by the Free Software Foundation; either
   9     version 2 of the License, or (at your option) any later version.
  10
  11     This library is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14     Library General Public License for more details.
  15
  16     You should have received a copy of the GNU Library General Public License
  17     along with this library; see the file COPYING.LIB.  If not, write to
  18     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19     Boston, MA 02110-1301, USA.
  20 */
  21
  22
  23 #include "kwindowpositioner.h"
  24
  25 #include <kdebug.h>
  26
  27 #include <QWidget>
  28 #include <QApplication>
  29 #include <QDesktopWidget>
  30
  31 KWindowPositioner::KWindowPositioner( QWidget *master, QWidget *slave,
  32   Mode mode )
  33   : QObject( master ), mMaster( master ), mSlave( slave ), mMode( mode )
  34 {
  35 }
  36
  37 void KWindowPositioner::reposition()
  38 {
  39   QPoint relativePos;
  40   if ( mMode == Right ) {
  41     relativePos = QPoint( mMaster->width(), 0 );
  42   } else if ( mMode == Bottom ) {
  43     relativePos = QPoint( mMaster->width() - mSlave->frameGeometry().width(),
  44       mMaster->height() );
  45   } else {
  46     kError() <<"KWindowPositioner: Illegal mode";
  47   }
  48   QPoint pos = mMaster->mapToGlobal( relativePos );
  49
  50   // fix position to avoid hiding parts of the window (needed especially when not using KWin)
  51   const QRect desktopRect( qApp->desktop()->availableGeometry( mMaster ) );
  52   if ( ( pos.x() + mSlave->frameGeometry().width() ) > desktopRect.width() )
  53     pos.setX( desktopRect.width() - mSlave->frameGeometry().width() );
  54   if ( ( pos.y() + mSlave->frameGeometry().height() ) > desktopRect.height() )
  55     pos.setY( desktopRect.height() - mSlave->frameGeometry().height() - mMaster->height() );
  56   kDebug() << mMaster->pos() << mMaster->mapToGlobal(mMaster->pos()) << pos.y() << (mMaster->pos().y() - pos.y()) << mSlave->frameGeometry().height();
  57   if ( mMode == Bottom && mMaster->mapToGlobal(mMaster->pos()).y() > pos.y() && (mMaster->pos().y() - pos.y()) < mSlave->frameGeometry().height() ) {
  58     pos.setY( mMaster->mapToGlobal(  QPoint( 0, -mSlave->frameGeometry().height() ) ).y() );
  59   }
  60   if ( pos.x() < desktopRect.left() )
  61     pos.setX( desktopRect.left() );
  62   if ( pos.y() < desktopRect.top() )
  63     pos.setY( desktopRect.top() );
  64
  65   mSlave->move( pos );
  66   mSlave->raise();
  67 }
  68
  69 #include "kwindowpositioner.moc"