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Diffstat (limited to 'tdeparts/statusbarextension.cpp')
| -rw-r--r-- | tdeparts/statusbarextension.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/tdeparts/statusbarextension.cpp b/tdeparts/statusbarextension.cpp new file mode 100644 index 000000000..02dd79acb --- /dev/null +++ b/tdeparts/statusbarextension.cpp @@ -0,0 +1,178 @@ +/* This file is part of the KDE project + Copyright (C) 2003 Daniel Molkentin <[email protected]> + Copyright (C) 2003 David Faure <[email protected]> + + 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. + */ + +#include "statusbarextension.h" + +#include <tqvaluelist.h> +#include <tqobjectlist.h> + +#include <kstatusbar.h> +#include <kmainwindow.h> +#include <kdebug.h> +#include <tdelibs_export.h> +#include <tdeparts/part.h> +#include <tdeparts/event.h> + +using namespace KParts; + +/////////////////////////////////////////////////////////////////// +// Helper Classes +/////////////////////////////////////////////////////////////////// + +class KParts::StatusBarItem { + public: + StatusBarItem() // for QValueList + : m_widget(0), m_visible(false) + {} + StatusBarItem( TQWidget * widget, int stretch, bool permanent ) + : m_widget(widget), m_stretch(stretch), m_permanent(permanent), m_visible(false) + {} + + TQWidget * widget() const { return m_widget; } + + void ensureItemShown( KStatusBar * sb ) + { + if ( !m_visible ) + { + sb->addWidget( m_widget, m_stretch, m_permanent ); + m_visible = true; + m_widget->show(); + } + } + void ensureItemHidden( KStatusBar * sb ) + { + if ( m_visible ) + { + sb->removeWidget( m_widget ); + m_visible = false; + m_widget->hide(); + } + } + private: + TQWidget * m_widget; + int m_stretch; + bool m_permanent; + bool m_visible; // true when the item has been added to the statusbar +}; + +/////////////////////////////////////////////////////////////////// + + +StatusBarExtension::StatusBarExtension(KParts::ReadOnlyPart *parent, const char* name) + : TQObject(parent, name), m_statusBar(0), d(0) +{ + parent->installEventFilter(this); +} + +StatusBarExtension::~StatusBarExtension() +{ +} + + +StatusBarExtension *StatusBarExtension::childObject( TQObject *obj ) +{ + if ( !obj || obj->childrenListObject().isEmpty() ) + return 0L; + + // we try to do it on our own, in hope that we are faster than + // queryList, which looks kind of big :-) + const TQObjectList children = obj->childrenListObject(); + TQObjectListIt it( children ); + for (; it.current(); ++it ) + if ( it.current()->inherits( "KParts::StatusBarExtension" ) ) + return static_cast<KParts::StatusBarExtension *>( it.current() ); + + return 0L; +} + +bool StatusBarExtension::eventFilter(TQObject * watched, TQEvent* ev) +{ + if ( !GUIActivateEvent::test( ev ) || + !watched->inherits("KParts::ReadOnlyPart") ) + return TQObject::eventFilter(watched, ev); + + KStatusBar * sb = statusBar(); + if ( !sb ) + return TQObject::eventFilter(watched, ev); + + GUIActivateEvent *gae = static_cast<GUIActivateEvent*>(ev); + + if ( gae->activated() ) + { + TQValueListIterator<StatusBarItem> it = m_statusBarItems.begin(); + for ( ; it != m_statusBarItems.end() ; ++it ) + (*it).ensureItemShown( sb ); + } + else + { + TQValueListIterator<StatusBarItem> it = m_statusBarItems.begin(); + for ( ; it != m_statusBarItems.end() ; ++it ) + (*it).ensureItemHidden( sb ); + } + + return false; + +} + +KStatusBar * StatusBarExtension::statusBar() const +{ + if ( !m_statusBar ) { + TQWidget* w = static_cast<KParts::ReadOnlyPart*>(parent())->widget(); + KMainWindow* mw = tqt_dynamic_cast<KMainWindow *>( w->topLevelWidget() ); + if ( mw ) + m_statusBar = mw->statusBar(); + } + return m_statusBar; +} + +void StatusBarExtension::setStatusBar( KStatusBar* status ) +{ + m_statusBar = status; +} + +void StatusBarExtension::addStatusBarItem( TQWidget * widget, int stretch, bool permanent ) +{ + m_statusBarItems.append( StatusBarItem( widget, stretch, permanent ) ); + TQValueListIterator<StatusBarItem> it = m_statusBarItems.fromLast(); + KStatusBar * sb = statusBar(); + Q_ASSERT(sb); + if (sb) + (*it).ensureItemShown( sb ); +} + +void StatusBarExtension::removeStatusBarItem( TQWidget * widget ) +{ + KStatusBar * sb = statusBar(); + TQValueListIterator<StatusBarItem> it = m_statusBarItems.begin(); + for ( ; it != m_statusBarItems.end() ; ++it ) + if ( (*it).widget() == widget ) + { + if ( sb ) + (*it).ensureItemHidden( sb ); + m_statusBarItems.remove( it ); + break; + } + if ( it == m_statusBarItems.end() ) + kdWarning(1000) << "StatusBarExtension::removeStatusBarItem. Widget not found : " << widget << endl; +} + +#include "statusbarextension.moc" + +// vim: ts=2 sw=2 et |