Fix floating point exception divide by 0 in qpedecoration

1 files changed, 2 insertions, 1 deletions

diff --git a/library/qpedecoration_qws.cpp b/library/qpedecoration_qws.cpp
index 222d906..c2eb751 100644
--- a/library/qpedecoration_qws.cpp
+++ b/library/qpedecoration_qws.cpp
@@ -1,238 +1,239 @@
 /**********************************************************************
 ** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the Qtopia Environment.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 #ifdef QWS
 #define QTOPIA_INTERNAL_LANGLIST
 #include <qapplication.h>
 #include <qstyle.h>
 #include <qwidget.h>
 #include <qpainter.h>
 #include <qtimer.h>
 #include <qwhatsthis.h>
 #include "qcopenvelope_qws.h"
 #include "qpedecoration_qws.h"
 #include <qdialog.h>
 #include <qdrawutil.h>
 #include <qgfx_qws.h>
 #include "qpeapplication.h"
 #include "resource.h"
 #include "global.h"
 #include "qlibrary.h"
 #include "windowdecorationinterface.h"
 #include <qfile.h>
 #include <qsignal.h>
 
 #include <stdlib.h>
 
 extern QRect qt_maxWindowRect; 
 
 #define WHATSTHIS_MODE
 
 #ifndef QT_NO_QWS_QPE_WM_STYLE
 
 #ifndef QT_NO_IMAGEIO_XPM
 
 /* XPM */
 static const char * const qpe_close_xpm[] = {
 "16 16 3 1",
 "       c None",
 ".      c #FFFFFF",
 "+      c #000000",
 "                ",
 "                ",
 "      .....     ",
 "    ..+++++..   ",
 "   .+++++++++.  ",
 "   .+..+++..+.  ",
 "  .++...+...++. ",
 "  .+++.....+++. ",
 "  .++++...++++. ",
 "  .+++.....+++. ",
 "  .++...+...++. ",
 "   .+..+++..+.  ",
 "   .+++++++++.  ",
 "    ..+++++..   ",
 "      .....     ",
 "                "};
 
 /* XPM */
 static const char * const qpe_accept_xpm[] = {
 "16 16 3 1",
 "       c None",
 ".      c #FFFFFF",
 "+      c #000000",
 "                ",
 "                ",
 "      .....     ",
 "    ..+++++..   ",
 "   .+++++++++.  ",
 "   .+++++++++.  ",
 "  .+++++++..++. ",
 "  .++.+++...++. ",
 "  .+...+...+++. ",
 "  .+......++++. ",
 "  .++....+++++. ",
 "   .++..+++++.  ",
 "   .+++++++++.  ",
 "    ..+++++..   ",
 "      .....     ",
 "                "};
 
 #endif // QT_NO_IMAGEIO_XPM
 
 class HackWidget : public QWidget
 {
 public:
     bool needsOk() {
 	return (getWState() & WState_Reserved1 ) ||
 		 (inherits( "QDialog" ) && !inherits( "QMessageBox" ) );
     }
 };
 
 static QImage scaleButton( const QImage &img, int height )
 {
-    if ( img.height() != height ) {
+    qWarning("Height %d %d",  height, img.height() );
+    if ( img.height()!=0 && img.height() != height ) {
 	return img.smoothScale( img.width()*height/img.height(), height );
     } else {
 	return img;
     }
 }
 
 class TLWidget : public QWidget
 {
 public:
     QWSManager *manager()
     {
 	return topData()->qwsManager;
     }
 
     QTLWExtra *topExtra()
     {
 	return topData();
     }
 
     void setWState( uint s ) { QWidget::setWState( s ); }
     void clearWState( uint s ) { QWidget::clearWState( s ); }
 };
 
 
 QPEManager::QPEManager( QPEDecoration *d, QObject *parent )
     : QObject( parent ), decoration( d ), helpState(0), inWhatsThis(FALSE)
 {
     wtTimer = new QTimer( this );
     connect( wtTimer, SIGNAL(timeout()), this, SLOT(whatsThisTimeout()) );
 }
 
 
 void QPEManager::updateActive()
 {
     QWidget *newActive = qApp->activeWindow();
     if ( newActive && (QWidget*)active == newActive )
 	return;
 
     if ( active && (!newActive || ((TLWidget *)newActive)->manager()) ) {
 	((TLWidget *)(QWidget*)active)->manager()->removeEventFilter( this );
     }
 
     if ( newActive && ((TLWidget *)newActive)->manager() ) {
 	active = newActive;
 	((TLWidget *)(QWidget*)active)->manager()->installEventFilter( this );
     } else if ( !newActive ) {
 	active = 0;
     }
 }
 
 int QPEManager::pointInQpeRegion( QWidget *w, const QPoint &p )
 {
     QRect rect(w->geometry());
 
     if ( decoration->region( w, rect,
 		(QWSDecoration::Region)QPEDecoration::Help ).contains(p) )
 	return QPEDecoration::Help;
 
     for (int i = QWSDecoration::LastRegion; i >= QWSDecoration::Title; i--) {
 	if (decoration->region(w, rect, (QWSDecoration::Region)i).contains(p))
 	    return (QWSDecoration::Region)i;
     }
 
     return QWSDecoration::None;
 }
 
 bool QPEManager::eventFilter( QObject *o, QEvent *e )
 {
     QWSManager *mgr = (QWSManager *)o;
     QWidget *w = mgr->widget();
     switch ( e->type() ) {
 	case QEvent::MouseButtonPress:
 	    {
 		pressTime = QTime::currentTime();
 		QPoint p = ((QMouseEvent*)e)->globalPos();
 		int inRegion = pointInQpeRegion( w, p );
 #ifdef WHATSTHIS_MODE
 		if ( !w->geometry().contains(p) && QWhatsThis::inWhatsThisMode() ) {
 		    QString text;
 		    switch ( inRegion ) {
 			case QWSDecoration::Close:
 			    if ( ((HackWidget*)w)->needsOk() )
 				text = tr("Click to close this window, discarding changes.");
 			    else
 				text = tr("Click to close this window.");
 			    break;
 			case QWSDecoration::Minimize:
 			    text = tr("Click to close this window and apply changes.");
 			    break;
 			case QWSDecoration::Maximize:
 			    if ( w->isMaximized() )
 				text = tr("Click to make this window moveable.");
 			    else
 				text = tr("Click to make this window use all available screen area.");
 			    break;
 			default:
 			    break;
 		    }
 		    QWhatsThis::leaveWhatsThisMode( text );
 		    whatsThisTimeout();
 		    helpState = 0;
 		    return true;
 		}
 #endif
 		if ( inRegion == QPEDecoration::Help ) {
 #ifdef WHATSTHIS_MODE
 		    wtTimer->start( 400, TRUE );
 #endif
 		    helpState = QWSButton::Clicked|QWSButton::MouseOver;
 		    drawButton( w, QPEDecoration::Help, helpState );
 		    return true;
 		}
 	    }
 	    break;
 	case QEvent::MouseButtonRelease:
 	    if ( helpState & QWSButton::Clicked ) {
 		wtTimer->stop();
 		helpState = 0;
 		drawButton( w, QPEDecoration::Help, helpState );
 		QPoint p = ((QMouseEvent*)e)->globalPos();
 		if ( pointInQpeRegion( w, p ) == QPEDecoration::Help ) {
 		    decoration->help( w );
 		}
 		return true;
 	    }
 	    break;
 	case QEvent::MouseMove:
 	    if ( helpState & QWSButton::Clicked ) {