diff options
Diffstat (limited to 'kcontrol/usbview/kcmusb.cpp')
| -rw-r--r-- | kcontrol/usbview/kcmusb.cpp | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/kcontrol/usbview/kcmusb.cpp b/kcontrol/usbview/kcmusb.cpp new file mode 100644 index 000000000..24cb1f1bd --- /dev/null +++ b/kcontrol/usbview/kcmusb.cpp @@ -0,0 +1,192 @@ +/*************************************************************************** + * Copyright (C) 2001 by Matthias Hoelzer-Kluepfel <mhk@caldera.de> * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + ***************************************************************************/ + +#include <qgroupbox.h> +#include <qheader.h> +#include <qlayout.h> +#include <qlistview.h> +#include <qsplitter.h> +#include <qtextview.h> +#include <qtimer.h> + +#include <kaboutdata.h> +#include <kdialog.h> +#include <kgenericfactory.h> + +#include "usbdevices.h" +#include "kcmusb.moc" + +typedef KGenericFactory<USBViewer, QWidget > USBFactory; +K_EXPORT_COMPONENT_FACTORY (kcm_usb, USBFactory("kcmusb") ) + +USBViewer::USBViewer(QWidget *parent, const char *name, const QStringList &) + : KCModule(USBFactory::instance(), parent, name) +{ + setButtons(Help); + + setQuickHelp( i18n("<h1>USB Devices</h1> This module allows you to see" + " the devices attached to your USB bus(es).")); + + QVBoxLayout *vbox = new QVBoxLayout(this, 0, KDialog::spacingHint()); + QGroupBox *gbox = new QGroupBox(i18n("USB Devices"), this); + gbox->setColumnLayout( 0, Qt::Horizontal ); + vbox->addWidget(gbox); + + QVBoxLayout *vvbox = new QVBoxLayout(gbox->layout(), KDialog::spacingHint()); + + QSplitter *splitter = new QSplitter(gbox); + vvbox->addWidget(splitter); + + _devices = new QListView(splitter); + _devices->addColumn(i18n("Device")); + _devices->setRootIsDecorated(true); + _devices->header()->hide(); + _devices->setMinimumWidth(200); + _devices->setColumnWidthMode(0, QListView::Maximum); + + QValueList<int> sizes; + sizes.append(200); + splitter->setSizes(sizes); + + _details = new QTextView(splitter); + + splitter->setResizeMode(_devices, QSplitter::KeepSize); + + QTimer *refreshTimer = new QTimer(this); + // 1 sec seems to be a good compromise between latency and polling load. + refreshTimer->start(1000); + + connect(refreshTimer, SIGNAL(timeout()), SLOT(refresh())); + connect(_devices, SIGNAL(selectionChanged(QListViewItem*)), + this, SLOT(selectionChanged(QListViewItem*))); + + KAboutData *about = + new KAboutData(I18N_NOOP("kcmusb"), I18N_NOOP("KDE USB Viewer"), + 0, 0, KAboutData::License_GPL, + I18N_NOOP("(c) 2001 Matthias Hoelzer-Kluepfel")); + + about->addAuthor("Matthias Hoelzer-Kluepfel", 0, "mhk@kde.org"); + about->addCredit("Leo Savernik", "Live Monitoring of USB Bus", "l.savernik@aon.at"); + setAboutData( about ); + + load(); +} + +void USBViewer::load() +{ + _items.clear(); + _devices->clear(); + + refresh(); +} + +static Q_UINT32 key( USBDevice &dev ) +{ + return dev.bus()*256 + dev.device(); +} + +static Q_UINT32 key_parent( USBDevice &dev ) +{ + return dev.bus()*256 + dev.parent(); +} + +static void delete_recursive( QListViewItem *item, const QIntDict<QListViewItem> &new_items ) +{ + if (!item) + return; + + QListViewItemIterator it( item ); + while ( it.current() ) { + if (!new_items.find(it.current()->text(1).toUInt())) { + delete_recursive( it.current()->firstChild(), new_items); + delete it.current(); + } + ++it; + } +} + +void USBViewer::refresh() +{ + QIntDict<QListViewItem> new_items; + + if (!USBDevice::parse("/proc/bus/usb/devices")) + USBDevice::parseSys("/sys/bus/usb/devices"); + + int level = 0; + bool found = true; + + while (found) + { + found = false; + + QPtrListIterator<USBDevice> it(USBDevice::devices()); + for ( ; it.current(); ++it) + if (it.current()->level() == level) + { + Q_UINT32 k = key(*it.current()); + if (level == 0) + { + QListViewItem *item = _items.find(k); + if (!item) { + item = new QListViewItem(_devices, + it.current()->product(), + QString::number(k)); + } + new_items.insert(k, item); + found = true; + } + else + { + QListViewItem *parent = new_items.find(key_parent(*it.current())); + if (parent) + { + QListViewItem *item = _items.find(k); + + if (!item) { + item = new QListViewItem(parent, + it.current()->product(), + QString::number(k) ); + } + new_items.insert(k, item); + parent->setOpen(true); + found = true; + } + } + } + + ++level; + } + + // recursive delete all items not in new_items + delete_recursive( _devices->firstChild(), new_items ); + + _items = new_items; + + if (!_devices->selectedItem()) + selectionChanged(_devices->firstChild()); +} + + +void USBViewer::selectionChanged(QListViewItem *item) +{ + if (item) + { + Q_UINT32 busdev = item->text(1).toUInt(); + USBDevice *dev = USBDevice::find(busdev>>8, busdev&255); + if (dev) + { + _details->setText(dev->dump()); + return; + } + } + _details->clear(); +} + + |