/*!
Resizes the top-level widget containing this widget. The event is
in \a e.
*/
void QSizeGrip::mouseMoveEvent( QMouseEvent * e )
{
if ( e->state() != LeftButton )
return;
QWidget* tlw = qt_sizegrip_topLevelWidget(this);
if ( tlw->testWState(WState_ConfigPending) )
return;
QPoint np( e->globalPos() );
QWidget* ws = qt_sizegrip_workspace( this );
if ( ws ) {
QPoint tmp( ws->mapFromGlobal( np ) );
if ( tmp.x() > ws->width() )
tmp.setX( ws->width() );
if ( tmp.y() > ws->height() )
tmp.setY( ws->height() );
np = ws->mapToGlobal( tmp );
}
int w;
int h = np.y() - p.y() + s.height();
if ( QApplication::reverseLayout() )
w = s.width() - ( np.x() - p.x() );
else
w = np.x() - p.x() + s.width();
if ( w < 1 )
w = 1;
if ( h < 1 )
h = 1;
QSize ms( tlw->minimumSizeHint() );
ms = ms.expandedTo( minimumSize() );
if ( w < ms.width() )
w = ms.width();
if ( h < ms.height() )
h = ms.height();
if (QApplication::reverseLayout()) {
tlw->resize( w, h );
if (tlw->size() == QSize(w,h))
tlw->move( tlw->x() + ( np.x()-p.x() ), tlw->y() );
} else {
tlw->resize( w, h );
}
#ifdef Q_WS_WIN
MSG msg;
while( PeekMessage( &msg, winId(), WM_MOUSEMOVE, WM_MOUSEMOVE, PM_REMOVE ) )
;
#endif
QApplication::syncX();
if ( QApplication::reverseLayout() && tlw->size() == QSize(w,h) ) {
s.rwidth() = tlw->size().width();
p.rx() = np.x();
}
}
/*!
Constructs a resize corner called \a name, as a child widget of \a
parent.
*/
QSizeGrip::QSizeGrip( QWidget * parent, const char* name )
: QWidget( parent, name )
{
#ifndef QT_NO_CURSOR
#ifndef Q_WS_MAC
if ( QApplication::reverseLayout() )
setCursor( sizeBDiagCursor );
else
setCursor( sizeFDiagCursor );
#endif
#endif
setSizePolicy( QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Fixed ) );
#if defined(Q_WS_X11)
if ( !qt_sizegrip_workspace( this ) ) {
WId id = winId();
XChangeProperty(qt_xdisplay(), topLevelWidget()->winId(),
qt_sizegrip, XA_WINDOW, 32, PropModeReplace,
(unsigned char *)&id, 1);
}
#endif
tlw = qt_sizegrip_topLevelWidget( this );
if ( tlw )
tlw->installEventFilter( this );
installEventFilter( this ); //for binary compatibility fix in 4.0 with an event() ###
}
/*!
Construct a resize corner as a child widget of \a parent.
*/
QSizeGrip::QSizeGrip( QWidget * parent, const char* name )
: QWidget( parent, name )
{
#ifndef QT_NO_CURSOR
setCursor( sizeFDiagCursor );
#endif
setSizePolicy( QSizePolicy( QSizePolicy::Minimum, QSizePolicy::Fixed ) );
#if defined(_WS_X11_)
if ( !qt_sizegrip_workspace( this ) ) {
WId id = winId();
XChangeProperty(qt_xdisplay(), topLevelWidget()->winId(),
qt_sizegrip, XA_WINDOW, 32, PropModeReplace,
(unsigned char *)&id, 1);
}
#endif
}
/*! \reimp */
bool QSizeGrip::eventFilter( QObject *o, QEvent *e )
{
if ( o == tlw ) {
switch ( e->type() ) {
#ifndef Q_WS_MAC
/* The size grip goes no where on Mac OS X when you maximize! --Sam */
case QEvent::ShowMaximized:
#endif
case QEvent::ShowFullScreen:
hide();
break;
case QEvent::ShowNormal:
show();
break;
default:
break;
}
} else if(o == this) {
#if defined(Q_WS_MAC)
switch(e->type()) {
case QEvent::Hide:
case QEvent::Show:
if(!QApplication::closingDown() && parentWidget() && !qt_sizegrip_workspace(this)) {
if(QWidget *w = qt_sizegrip_topLevelWidget(this)) {
if(w->isTopLevel())
qt_mac_update_sizer(w, e->type() == QEvent::Hide ? -1 : 1);
}
}
break;
default:
break;
}
#endif
}
return FALSE;
}
