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tdebase/kcontrol/kcontrol/proxywidget.cpp

345 lines
9.1 KiB

/*
Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
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 <unistd.h> // for getuid()
#include <kpushbutton.h>
#include <tqlayout.h>
#include <tdelocale.h>
#include <tdeapplication.h>
#include <tdecmodule.h>
#include <kseparator.h>
#include <kdialog.h>
#include <kstdguiitem.h>
#include <dcopclient.h>
#include <tqwhatsthis.h>
#include <tqlabel.h>
#include "global.h"
#include "proxywidget.h"
#include "proxywidget.moc"
#include <kdebug.h>
#include <tqtimer.h>
class WhatsThis : public TQWhatsThis
{
public:
WhatsThis( ProxyWidget* parent )
: TQWhatsThis( parent ), proxy( parent ) {}
~WhatsThis(){};
TQString text( const TQPoint & ) {
if ( !proxy->quickHelp().isEmpty() )
return proxy->quickHelp();
else
return i18n("The currently loaded configuration module.");
}
private:
ProxyWidget* proxy;
};
////////////////////////////////////////////////////////////////////////////////////////////////////////
static void trinity_setVisible(TQPushButton *btn, bool vis)
{
if (vis)
btn->show();
else
btn->hide();
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
class RootInfoWidget : public TQLabel
{
public:
RootInfoWidget(TQWidget *parent, const char *name);
void setRootMsg(const TQString& s) { setText(s); }
};
RootInfoWidget::RootInfoWidget(TQWidget *parent, const char *name = 0)
: TQLabel(parent, name)
{
setFrameShape(TQFrame::Box);
setFrameShadow(TQFrame::Raised);
setText(i18n("<b>Changes in this module require root access.</b><br>"
"Click the \"Administrator Mode\" button to "
"allow modifications in this module."));
TQWhatsThis::add(this, i18n("This module requires special permissions, probably "
"for system-wide modifications; therefore, it is "
"required that you provide the root password to be "
"able to change the module's properties. If you "
"do not provide the password, the module will be "
"disabled."));
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
class ProxyView : public TQScrollView
{
public:
ProxyView(TDECModule *client, const TQString& title, TQWidget *parent, bool run_as_root, const char *name);
private:
virtual void resizeEvent(TQResizeEvent *);
TQWidget *contentWidget;
TDECModule *client;
bool scroll;
};
class ProxyContentWidget : public TQWidget
{
public:
ProxyContentWidget( TQWidget* parent ) : TQWidget( parent ) {}
~ProxyContentWidget(){}
// this should be really done by qscrollview in AutoOneFit mode!
TQSize sizeHint() const { return minimumSizeHint(); }
};
ProxyView::ProxyView(TDECModule *_client, const TQString&, TQWidget *parent, bool run_as_root, const char *name)
: TQScrollView(parent, name), client(_client)
{
setResizePolicy(TQScrollView::AutoOneFit);
setFrameStyle( NoFrame );
contentWidget = new ProxyContentWidget( viewport() );
TQVBoxLayout* vbox = new TQVBoxLayout( contentWidget );
if (run_as_root && _client->useRootOnlyMsg()) // notify the user
{
RootInfoWidget *infoBox = new RootInfoWidget(contentWidget);
vbox->addWidget( infoBox );
TQString msg = _client->rootOnlyMsg();
if (!msg.isEmpty())
infoBox->setRootMsg(msg);
vbox->setSpacing(KDialog::spacingHint());
}
client->reparent(contentWidget,0,TQPoint(0,0),true);
vbox->addWidget( client );
vbox->activate(); // make sure we have a proper minimumSizeHint
addChild(contentWidget);
}
void ProxyView::resizeEvent(TQResizeEvent *e)
{
TQScrollView::resizeEvent(e);
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
ProxyWidget::ProxyWidget(TDECModule *client, TQString title, const char *name,
bool run_as_root)
: TQWidget(0, name)
, _client(client)
{
setCaption(title);
if (getuid()==0 ) {
// Make root modules look as similar as possible...
TQCString replyType;
TQByteArray replyData;
if (kapp->dcopClient()->call("kcontrol", "moduleIface", "getPalette()", TQByteArray(),
replyType, replyData))
if ( replyType == "TQPalette") {
TQDataStream reply( replyData, IO_ReadOnly );
TQPalette pal;
reply >> pal;
setPalette(pal);
}
/* // Doesn't work ...
if (kapp->dcopClient()->call("kcontrol", "moduleIface", "getStyle()", TQByteArray(),
replyType, replyData))
if ( replyType == "TQString") {
TQDataStream reply( replyData, IO_ReadOnly );
TQString style;
reply >> style;
setStyle(style);
}
*/
if (kapp->dcopClient()->call("kcontrol", "moduleIface", "getFont()", TQByteArray(),
replyType, replyData))
if ( replyType == "TQFont") {
TQDataStream reply( replyData, IO_ReadOnly );
TQFont font;
reply >> font;
setFont(font);
}
}
view = new ProxyView(client, title, this, run_as_root, "proxyview");
(void) new WhatsThis( this );
connect(_client, TQT_SIGNAL(changed(bool)), TQT_SLOT(clientChanged(bool)));
connect(_client, TQT_SIGNAL(quickHelpChanged()), TQT_SIGNAL(quickHelpChanged()));
_sep = new KSeparator(KSeparator::HLine, this);
_handbook= new KPushButton( KGuiItem(KStdGuiItem::help().text(),"contents"), this );
_default = new KPushButton( KStdGuiItem::defaults(), this );
_apply = new KPushButton( KStdGuiItem::apply(), this );
_reset = new KPushButton( KGuiItem( i18n( "&Reset" ), "edit-undo" ), this );
_root = new KPushButton( KGuiItem(i18n( "&Administrator Mode" )), this );
bool mayModify = (!run_as_root || !_client->useRootOnlyMsg()) && !KCGlobal::isInfoCenter();
// only enable the requested buttons
int b = _client->buttons();
trinity_setVisible(_handbook, (b & TDECModule::Help));
trinity_setVisible(_default, mayModify && (b & TDECModule::Default));
trinity_setVisible(_apply, mayModify && (b & TDECModule::Apply));
trinity_setVisible(_reset, mayModify && (b & TDECModule::Apply));
trinity_setVisible(_root, run_as_root);
// disable initial buttons
_apply->setEnabled( false );
_reset->setEnabled( false );
connect(_handbook, TQT_SIGNAL(clicked()), TQT_SLOT(handbookClicked()));
connect(_default, TQT_SIGNAL(clicked()), TQT_SLOT(defaultClicked()));
connect(_apply, TQT_SIGNAL(clicked()), TQT_SLOT(applyClicked()));
connect(_reset, TQT_SIGNAL(clicked()), TQT_SLOT(resetClicked()));
connect(_root, TQT_SIGNAL(clicked()), TQT_SLOT(rootClicked()));
TQVBoxLayout *top = new TQVBoxLayout(this, KDialog::marginHint(),
KDialog::spacingHint());
top->addWidget(view);
top->addWidget(_sep);
TQHBoxLayout *buttons = new TQHBoxLayout(top, 4);
buttons->addWidget(_handbook);
buttons->addWidget(_default);
if (run_as_root)
{
buttons->addWidget(_root);
}
buttons->addStretch(1);
if (mayModify)
{
buttons->addWidget(_apply);
buttons->addWidget(_reset);
}
top->activate();
}
ProxyWidget::~ProxyWidget()
{
#ifdef USE_QT4
#warning Possible memory leak in ProxyWidget::~ProxyWidget()
#else // USE_QT4
if (_client) delete _client;
_client = 0;
#endif // USE_QT4
}
TQString ProxyWidget::quickHelp() const
{
if (_client)
return _client->quickHelp();
else
return "";
}
void ProxyWidget::handbookClicked()
{
if (getuid()!=0)
emit handbookRequest();
else
kapp->dcopClient()->send("kcontrol", "moduleIface", "invokeHandbook()", TQByteArray());
}
void ProxyWidget::helpClicked()
{
if (getuid()!=0)
emit helpRequest();
else
kapp->dcopClient()->send("kcontrol", "moduleIface", "invokeHelp()", TQByteArray());
}
void ProxyWidget::defaultClicked()
{
clientChanged(true);
_client->defaults();
}
void ProxyWidget::applyClicked()
{
_client->save();
clientChanged(false);
}
void ProxyWidget::resetClicked()
{
_client->load();
clientChanged(false);
}
void ProxyWidget::rootClicked()
{
emit runAsRoot();
}
void ProxyWidget::clientChanged(bool state)
{
_apply->setEnabled(state);
_reset->setEnabled(state);
// forward the signal
emit changed(state);
}
TQString ProxyWidget::handbookDocPath() const
{
if (_client)
return _client->handbookDocPath();
else
return TQString::null;
}
TQString ProxyWidget::handbookSection() const
{
if (_client)
return _client->handbookSection();
else
return TQString::null;
}
const TDEAboutData *ProxyWidget::aboutData() const
{
return _client->aboutData();
}
// vim: sw=2 sts=2 et