/*****************************************************************
kwin - the KDE window manager
								
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2002 Alexander Kellett <lypanov@kde.org>
******************************************************************/
//#define QT_CLEAN_NAMESPACE
#include "popupinfo.h"
#include "workspace.h"
#include "client.h"
#include <qpainter.h>
#include <qlabel.h>
#include <qdrawutil.h>
#include <qstyle.h>
#undef Bool // f**king X11
#include <kglobal.h>
#include <kconfig.h>
#include <kdebug.h>
#include <klocale.h>
#include <qapplication.h>
#include <qdesktopwidget.h>
#include <qcursor.h>
#include <kstringhandler.h>

// specify externals before namespace

using namespace KWinInternal;

PopupInfo::PopupInfo( const char *name )
    : QWidget( 0, name, WStyle_Customize | WStyle_NoBorder )
{
    m_infoString = "";
    reset();
    reconfigure();
    connect(&m_delayedHideTimer, SIGNAL(timeout()), this, SLOT(hide()));

    QFont f = font();
    f.setBold( TRUE );
    f.setPointSize( 14 );
    setFont( f );

}

PopupInfo::~PopupInfo()
{
}


/*!
  Resets the popup info
 */
void PopupInfo::reset()
{
    QDesktopWidget* desktop = qApp->desktop();
    int screen =  desktop->screenNumber( QCursor::pos() );
    QRect r = desktop->screenGeometry(screen);

    int w = fontMetrics().width( m_infoString ) + 30;

    setGeometry( 
       (r.width()-w)/2 + r.x(), r.height()/2-fontMetrics().height()-10 + r.y(),
		 w,                       fontMetrics().height() + 20 );
}


/*!
  Paints the popup info
 */
void PopupInfo::paintEvent( QPaintEvent* )
{
    QPainter p( this );
    style().drawPrimitive( QStyle::PE_Panel, &p, QRect( 0, 0, width(), height() ),
          colorGroup(), QStyle::Style_Default );
    paintContents();
}


/*!
  Paints the contents of the tab popup info box. 
  Used in paintEvent() and whenever the contents changes.
 */
void PopupInfo::paintContents()
{
    QPainter p( this );
    QRect r( 6, 6, width()-12, height()-12 );

    p.fillRect( r, colorGroup().brush( QColorGroup::Background ) );

    /*
    p.setPen(Qt::white);
    p.drawText( r, AlignCenter, m_infoString );
    p.setPen(Qt::black);
    r.moveBy( -1, -1 );
    p.drawText( r, AlignCenter, m_infoString );
    r.moveBy( -1, 0 );
    */
    p.drawText( r, AlignCenter, m_infoString );
}

void PopupInfo::hide()
{
    m_delayedHideTimer.stop();
    QWidget::hide();
    QApplication::syncX();
    XEvent otherEvent;
    while (XCheckTypedEvent (qt_xdisplay(), EnterNotify, &otherEvent ) )
	;
    m_shown = false;
}

void PopupInfo::reconfigure() 
{
    KConfig * c(KGlobal::config());
    c->setGroup("PopupInfo");
    m_show = c->readNumEntry("ShowPopup", false );
    m_delayTime = c->readNumEntry("PopupHideDelay", 350 );
}

void PopupInfo::showInfo(QString infoString)
{
    if (m_show) {
       m_infoString = infoString;
       if (m_shown) {
          // AK, maybe reset() should be called for every view, otherwise the 
          // contents is painted but setGeometry not called
          // reset();
          paintContents();
       } else {
          reset();
          show();
          raise();
          m_shown = true;
       }
       m_delayedHideTimer.start(m_delayTime, true);
    }
}

#include "popupinfo.moc"