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tdeutils/ksim/library/pluginglobal.cpp

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/* ksim - a system monitor for kde
*
* Copyright (C) 2001 Robbie Ward <linuxphreak@gmx.co.uk>
*
* 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.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "pluginglobal.h"
#include "pluginmodule.h"
#include <kdebug.h>
#include <kdesktopfile.h>
#include <klocale.h>
#include <kiconloader.h>
class KSim::Plugin::Private
{
public:
Private() : plugin(0),
view(0), page(0)
{
oldState = true;
enabled = true;
// Set the ref-count to 1
count = 1;
}
~Private()
{
kdDebug(2003) << "Deleting " << (plugin ?
plugin->name() : TQString("Null"))
<< " objects." << endl;
// Remember to delete the objects we own
delete plugin;
delete view;
delete page;
plugin = 0;
view = 0;
page = 0;
}
void ref() { ++count; }
bool deref() { return !--count; }
uint count;
TQString name;
TQPixmap icon;
TQCString libName;
TQString filename;
KSim::PluginObject *plugin;
KSim::PluginView *view;
KSim::PluginPage *page;
bool oldState;
bool enabled;
};
KSim::Plugin KSim::Plugin::null;
// Null Plugin
KSim::Plugin::Plugin() : d(0)
{
}
KSim::Plugin::Plugin(KSim::PluginObject *plugin, const KDesktopFile &file)
{
init(plugin, file);
if (d) {
d->view = d->plugin ? d->plugin->createView(d->libName) : 0;
d->page = d->plugin ? d->plugin->createConfigPage(d->libName) : 0;
}
}
KSim::Plugin::Plugin(const KSim::Plugin &rhs)
{
d = rhs.d;
if (d)
d->ref();
}
KSim::Plugin::~Plugin()
{
if (d && d->deref())
delete d;
}
KSim::Plugin &KSim::Plugin::operator=(const KSim::Plugin &rhs)
{
if (*this == rhs)
return *this;
if (rhs.d) {
rhs.d->ref();
if (d && d->deref())
delete d;
d = rhs.d;
return *this;
}
// rhs is a null plugin so we just go ahead
// and make this a null plugin too.
if (d && d->deref())
delete d;
d = 0;
return *this;
}
bool KSim::Plugin::operator==(const KSim::Plugin &rhs) const
{
return d == rhs.d;
}
bool KSim::Plugin::operator!=(const KSim::Plugin &rhs) const
{
return !(operator==(rhs));
}
void KSim::Plugin::setEnabled(bool enabled)
{
if (!d)
return;
d->oldState = d->enabled;
d->enabled = enabled;
}
bool KSim::Plugin::isEnabled() const
{
return (d ? d->enabled : false);
}
bool KSim::Plugin::isDifferent() const
{
return d ? d->enabled != d->oldState : false;
}
bool KSim::Plugin::isNull() const
{
return !d;
}
const TQString &KSim::Plugin::name() const
{
return d ? d->name : TQString();
}
TQPixmap KSim::Plugin::icon() const
{
return d ? d->icon : TQPixmap();
}
TQCString KSim::Plugin::libName() const
{
return d ? d->libName : TQCString();
}
const TQString &KSim::Plugin::fileName() const
{
return d ? d->filename : TQString();
}
KSim::PluginObject *KSim::Plugin::plugin() const
{
return d ? d->plugin : 0;
}
KSim::PluginView *KSim::Plugin::view() const
{
return d ? d->view : 0;
}
KSim::PluginPage *KSim::Plugin::configPage() const
{
return d ? d->page : 0;
}
void KSim::Plugin::init(KSim::PluginObject *plugin, const KDesktopFile &file)
{
if (!plugin || file.fileName().isEmpty()) {
d = 0;
return;
}
d = new Private;
d->libName = "ksim_" + file.readEntry("X-KSIM-LIBRARY").local8Bit();
d->name = file.readName();
d->icon = SmallIcon(file.readIcon());
d->filename = file.fileName();
d->plugin = plugin;
}