tabwidget.cpp
/* This file is part of the KDE libraries
Copyright (C) 2004 Christoph Cullmann <cullmann@kde.org>
Copyright (C) 2002,2003 Joseph Wenninger <jowenn@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Based on:
//----------------------------------------------------------------------------
// Project : KDE MDI extension
//
// begin : 07/1999 by Szymon Stefanek as part of kvirc
// (an IRC application)
// changes : 09/1999 by Falk Brettschneider to create an
// - 06/2000 stand-alone Qt extension set of
// classes and a Qt-based library
// : 02/2000 by Massimo Morin (mmorin@schedsys.com)
// 2000-2003 maintained by the KDevelop project
// patches : -/2000 by Lars Beikirch (Lars.Beikirch@gmx.net)
// : 01/2003 by Jens Zurheide (jens.zurheide@gmx.de)
//
// copyright : (C) 1999-2003 by Falk Brettschneider
// and
// Szymon Stefanek (stefanek@tin.it)
// email : falkbr@kdevelop.org (Falk Brettschneider)
//----------------------------------------------------------------------------
*/
#include <ktabbar.h>
#include <kpopupmenu.h>
#include <kdebug.h>
#include <qobjectlist.h>
#include "tabwidget.h"
#include "tabwidget.moc"
namespace KMDIPrivate
{
class TabWidgetPrivate
{
};
}
namespace KMDI
{
TabWidget::TabWidget(QWidget* parent, const char* name)
: KTabWidget(parent,name)
, m_visibility (KMDI::ShowWhenMoreThanOneTab)
, d (new KMDIPrivate::TabWidgetPrivate())
{
installEventFilter (this);
tabBar()->hide();
setHoverCloseButton(true);
connect(this, SIGNAL(closeRequest(QWidget*)), this, SLOT(closeTab(QWidget*)));
}
TabWidget::~TabWidget()
{
delete d;
d = 0;
}
bool TabWidget::eventFilter(QObject *obj, QEvent *e )
{
if(e->type() == QEvent::FocusIn)
{
emit focusInEvent ();
}
else if (e->type() == QEvent::ChildRemoved)
{
// if we lost a child we uninstall ourself as event filter for the lost
// child and its children
QObject* pLostChild = ((QChildEvent*)e)->child();
if ((pLostChild != 0L) && (pLostChild->isWidgetType())) {
QObjectList *list = pLostChild->queryList( "QWidget" );
list->insert(0, pLostChild); // add the lost child to the list too, just to save code
QObjectListIt it( *list ); // iterate over all lost child widgets
QObject * o;
while ( (o=it.current()) != 0 ) { // for each found object...
QWidget* widg = (QWidget*)o;
++it;
widg->removeEventFilter(this);
}
delete list; // delete the list, not the objects
}
}
else if (e->type() == QEvent::ChildInserted)
{
// if we got a new child and we are attached to the MDI system we
// install ourself as event filter for the new child and its children
// (as we did when we were added to the MDI system).
QObject* pNewChild = ((QChildEvent*)e)->child();
if ((pNewChild != 0L) && (pNewChild->isWidgetType()))
{
QWidget* pNewWidget = (QWidget*)pNewChild;
if (pNewWidget->testWFlags(Qt::WType_Dialog | Qt::WShowModal))
return false;
QObjectList *list = pNewWidget->queryList( "QWidget" );
list->insert(0, pNewChild); // add the new child to the list too, just to save code
QObjectListIt it( *list ); // iterate over all new child widgets
QObject * o;
while ( (o=it.current()) != 0 ) { // for each found object...
QWidget* widg = (QWidget*)o;
++it;
widg->installEventFilter(this);
connect(widg, SIGNAL(destroyed()), this, SLOT(childDestroyed()));
}
delete list; // delete the list, not the objects
}
}
return KTabWidget::eventFilter (obj, e);
}
void TabWidget::childDestroyed()
{
// if we lost a child we uninstall ourself as event filter for the lost
// child and its children
const QObject* pLostChild = QObject::sender();
if ((pLostChild != 0L) && (pLostChild->isWidgetType()))
{
QObjectList *list = ((QObject*)(pLostChild))->queryList("QWidget");
list->insert(0, pLostChild); // add the lost child to the list too, just to save code
QObjectListIt it( *list ); // iterate over all lost child widgets
QObject * obj;
while ( (obj=it.current()) != 0 ) { // for each found object...
QWidget* widg = (QWidget*)obj;
++it;
widg->removeEventFilter(this);
}
delete list; // delete the list, not the objects
}
}
void TabWidget::closeTab(QWidget* w)
{
w->close();
}
void TabWidget::addTab ( QWidget * child, const QString & label )
{
KTabWidget::addTab(child,label);
showPage(child);
maybeShow();
}
void TabWidget::addTab ( QWidget * child, const QIconSet & iconset, const QString & label )
{
KTabWidget::addTab(child,iconset,label);
showPage(child);
maybeShow();
}
void TabWidget::addTab ( QWidget * child, QTab * tab )
{
KTabWidget::addTab(child,tab);
showPage(child);
maybeShow();
}
void TabWidget::insertTab ( QWidget * child, const QString & label, int index)
{
KTabWidget::insertTab(child,label,index);
showPage(child);
maybeShow();
tabBar()->repaint();
}
void TabWidget::insertTab ( QWidget * child, const QIconSet & iconset, const QString & label, int index )
{
KTabWidget::insertTab(child,iconset,label,index);
showPage(child);
maybeShow();
tabBar()->repaint();
}
void TabWidget::insertTab ( QWidget * child, QTab * tab, int index)
{
KTabWidget::insertTab(child,tab,index);
showPage(child);
maybeShow();
tabBar()->repaint();
}
void TabWidget::removePage ( QWidget * w )
{
KTabWidget::removePage(w);
maybeShow();
}
void TabWidget::updateIconInView( QWidget *w, QPixmap icon )
{
changeTab(w,icon,tabLabel(w));
}
void TabWidget::updateCaptionInView( QWidget *w, const QString &caption )
{
changeTab(w, caption);
}
void TabWidget::maybeShow()
{
switch (m_visibility)
{
case KMDI::AlwaysShowTabs:
tabBar()->show();
// show/hide corner widgets
if (count() == 0)
setCornerWidgetVisibility(false);
else
setCornerWidgetVisibility(true);
break;
case KMDI::ShowWhenMoreThanOneTab:
if (count()<2) tabBar()->hide();
else tabBar()->show();
// show/hide corner widgets
if (count() < 2)
setCornerWidgetVisibility(false);
else
setCornerWidgetVisibility(true);
break;
case KMDI::NeverShowTabs:
tabBar()->hide();
break;
}
}
void TabWidget::setCornerWidgetVisibility(bool visible) {
// there are two corner widgets: on TopLeft and on TopTight!
if (cornerWidget(Qt::TopLeft) ) {
if (visible)
cornerWidget(Qt::TopLeft)->show();
else
cornerWidget(Qt::TopLeft)->hide();
}
if (cornerWidget(Qt::TopRight) ) {
if (visible)
cornerWidget(Qt::TopRight)->show();
else
cornerWidget(Qt::TopRight)->hide();
}
}
void TabWidget::setTabWidgetVisibility( KMDI::TabWidgetVisibility visibility )
{
m_visibility = visibility;
maybeShow();
}
KMDI::TabWidgetVisibility TabWidget::tabWidgetVisibility( ) const
{
return m_visibility;
}
}
// kate: space-indent on; indent-width 2; replace-tabs on;

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