workspace/kwin/popupinfo.cpp

   1 /********************************************************************
   2  KWin - the KDE window manager
   3  This file is part of the KDE project.
   4
   5 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
   6 Copyright (C) 2002 Alexander Kellett <lypanov@kde.org>
   7 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 *********************************************************************/
  22
  23 //#define QT_CLEAN_NAMESPACE
  24 #include "popupinfo.h"
  25 #include <QTextStream>
  26 #include "workspace.h"
  27 #include "client.h"
  28 #include <QPainter>
  29 #include <QLabel>
  30 #include <qdrawutil.h>
  31 #include <QStyle>
  32 #include <kglobal.h>
  33 #include <fixx11h.h>
  34 #include <kconfig.h>
  35 #include <kdebug.h>
  36 #include <klocale.h>
  37 #include <QApplication>
  38 #include <QDesktopWidget>
  39 #include <kstringhandler.h>
  40 #include <kglobalsettings.h>
  41 #include <QX11Info>
  42 #include <QStyleOptionFrame>
  43
  44 // specify externals before namespace
  45
  46 namespace KWin
  47 {
  48
  49 PopupInfo::PopupInfo( Workspace* ws, const char *name )
  50     : QWidget( 0 ), workspace( ws )
  51     {
  52     setObjectName( name );
  53
  54     m_infoString = "";
  55     m_shown = false;
  56     reset();
  57     reconfigure();
  58
  59     m_delayedHideTimer.setSingleShot(true);
  60     connect(&m_delayedHideTimer, SIGNAL(timeout()), this, SLOT(hide()));
  61
  62     QFont f = font();
  63     f.setBold( true );
  64     f.setPointSize( 14 );
  65     setFont( f );
  66
  67     }
  68
  69 PopupInfo::~PopupInfo()
  70     {
  71     }
  72
  73
  74 /*!
  75   Resets the popup info
  76  */
  77 void PopupInfo::reset()
  78     {
  79     QRect r = workspace->screenGeometry( workspace->activeScreen());
  80
  81     int w = fontMetrics().width( m_infoString ) + 30;
  82
  83     setGeometry(
  84        (r.width()-w)/2 + r.x(), r.height()/2-fontMetrics().height()-10 + r.y(),
  85                  w,                      fontMetrics().height() + 20 );
  86     }
  87
  88
  89 /*!
  90   Paints the popup info
  91  */
  92 void PopupInfo::paintEvent( QPaintEvent* )
  93     {
  94     QPainter p( this );
  95     QStyleOptionFrame *so = new QStyleOptionFrame;
  96     so->rect = QRect( 0, 0, width(), height() );
  97     so->palette = palette();
  98     so->palette.setCurrentColorGroup( QPalette::Active );
  99     so->state = QStyle::State_None;
 100     style()->drawPrimitive( QStyle::PE_Frame, so, &p );
 101     paintContents();
 102     }
 103
 104
 105 /*!
 106   Paints the contents of the tab popup info box.
 107   Used in paintEvent() and whenever the contents changes.
 108  */
 109 void PopupInfo::paintContents()
 110     {
 111     QPainter p( this );
 112     QRect r( 6, 6, width()-12, height()-12 );
 113
 114     p.fillRect( r, palette().brush( QPalette::Active, QPalette::Background ) );
 115
 116     /*
 117     p.setPen(Qt::white);
 118     p.drawText( r, AlignCenter, m_infoString );
 119     p.setPen(Qt::black);
 120     r.translate( -1, -1 );
 121     p.drawText( r, AlignCenter, m_infoString );
 122     r.translate( -1, 0 );
 123     */
 124     p.drawText( r, Qt::AlignCenter, m_infoString );
 125     }
 126
 127 void PopupInfo::hide()
 128     {
 129     m_delayedHideTimer.stop();
 130     QWidget::hide();
 131     QApplication::syncX();
 132     XEvent otherEvent;
 133     while (XCheckTypedEvent (display(), EnterNotify, &otherEvent ) )
 134         ;
 135     m_shown = false;
 136     }
 137
 138 void PopupInfo::reconfigure()
 139     {
 140     KSharedConfigPtr c(KGlobal::config());
 141     const KConfigGroup cg = c->group("PopupInfo");
 142     m_show = cg.readEntry("ShowPopup", false );
 143     m_delayTime = cg.readEntry("PopupHideDelay", 350 );
 144     }
 145
 146 void PopupInfo::showInfo(const QString &infoString)
 147     {
 148     if (m_show)
 149         {
 150         m_infoString = infoString;
 151         reset();
 152         if (m_shown)
 153             {
 154             paintContents();
 155             }
 156         else
 157             {
 158             show();
 159             raise();
 160             m_shown = true;
 161             }
 162         m_delayedHideTimer.start(m_delayTime);
 163         }
 164     }
 165
 166 } // namespace
 167
 168 #include "popupinfo.moc"