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443 lines
12 KiB
443 lines
12 KiB
/* vi: ts=8 sts=4 sw=4
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*
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*
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*
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* This file is part of the KDE project, module kcontrol.
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* Copyright (C) 1999 Geert Jansen <g.t.jansen@stud.tue.nl>
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*
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* You can Freely distribute this program under the GNU General Public
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* License. See the file "COPYING" for the exact licensing terms.
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*
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* Based on kcontrol1 energy.cpp, Copyright (c) 1999 Tom Vijlbrief
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*/
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/*
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* KDE Energy setup module.
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*/
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#include <config.h>
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#if !defined(QT_CLEAN_NAMESPACE)
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#define QT_CLEAN_NAMESPACE
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#endif
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#include <tqcheckbox.h>
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#include <tqlabel.h>
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#include <tqlayout.h>
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#include <tqwhatsthis.h>
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#include <tdeconfig.h>
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#include <kcursor.h>
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#include <kdialog.h>
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#include <kiconloader.h>
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#include <tdelocale.h>
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#include <knuminput.h>
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#include <krun.h>
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#include <kstandarddirs.h>
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#include <kurllabel.h>
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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#include <X11/Xos.h>
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#include "energy.h"
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#ifdef HAVE_DPMS
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#include <X11/Xmd.h>
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extern "C" {
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#include <X11/extensions/dpms.h>
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Status DPMSInfo ( Display *, CARD16 *, BOOL * );
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Bool DPMSCapable( Display * );
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int __kde_do_not_unload = 1;
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#ifndef HAVE_DPMSCAPABLE_PROTO
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Bool DPMSCapable ( Display * );
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#endif
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#ifndef HAVE_DPMSINFO_PROTO
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Status DPMSInfo ( Display *, CARD16 *, BOOL * );
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#endif
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}
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#if defined(XIMStringConversionRetrival) || defined (__sun) || defined(__hpux)
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extern "C" {
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#endif
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Bool DPMSQueryExtension(Display *, int *, int *);
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Status DPMSEnable(Display *);
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Status DPMSDisable(Display *);
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Bool DPMSGetTimeouts(Display *, CARD16 *, CARD16 *, CARD16 *);
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Bool DPMSSetTimeouts(Display *, CARD16, CARD16, CARD16);
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#if defined(XIMStringConversionRetrival) || defined (__sun) || defined(__hpux)
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}
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#endif
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#endif
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static const int DFLT_STANDBY = 0;
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static const int DFLT_SUSPEND = 30;
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static const int DFLT_OFF = 60;
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/**** DLL Interface ****/
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extern "C" {
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KDE_EXPORT TDECModule *create_energy(TQWidget *parent, char *) {
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return new KEnergy(parent, "kcmenergy");
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}
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KDE_EXPORT void init_energy() {
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#ifdef HAVE_DPMS
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TDEConfig *cfg = new TDEConfig("kcmdisplayrc", true /*readonly*/, false /*no globals*/);
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cfg->setGroup("DisplayEnergy");
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Display *dpy = tqt_xdisplay();
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CARD16 pre_configured_status;
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BOOL pre_configured_enabled;
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CARD16 pre_configured_standby;
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CARD16 pre_configured_suspend;
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CARD16 pre_configured_off;
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bool enabled;
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CARD16 standby;
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CARD16 suspend;
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CARD16 off;
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int dummy;
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/* query the running X server if DPMS is supported */
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if (DPMSQueryExtension(dpy, &dummy, &dummy) && DPMSCapable(dpy)) {
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DPMSGetTimeouts(dpy, &pre_configured_standby, &pre_configured_suspend, &pre_configured_off);
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DPMSInfo(dpy, &pre_configured_status, &pre_configured_enabled);
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/* let the user override the settings */
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enabled = cfg->readBoolEntry("displayEnergySaving", pre_configured_enabled);
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standby = cfg->readNumEntry("displayStandby", pre_configured_standby/60);
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suspend = cfg->readNumEntry("displaySuspend", pre_configured_suspend/60);
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off = cfg->readNumEntry("displayPowerOff", pre_configured_off/60);
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} else {
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/* provide our defauts */
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enabled = true;
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standby = DFLT_STANDBY;
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suspend = DFLT_SUSPEND;
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off = DFLT_OFF;
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}
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delete cfg;
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KEnergy::applySettings(enabled, standby, suspend, off);
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#endif
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}
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}
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/**** KEnergy ****/
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KEnergy::KEnergy(TQWidget *parent, const char *name)
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: TDECModule(parent, name)
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{
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m_bChanged = false;
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m_bEnabled = false;
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m_Standby = DFLT_STANDBY;
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m_Suspend = DFLT_SUSPEND;
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m_Off = DFLT_OFF;
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m_bDPMS = false;
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m_bMaintainSanity = true;
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setQuickHelp( i18n("<h1>Display Power Control</h1> If your display supports"
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" power saving features, you can configure them using this module.<p>"
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" There are three levels of power saving: standby, suspend, and off."
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" The greater the level of power saving, the longer it takes for the"
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" display to return to an active state.<p>"
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" To wake up the display from a power saving mode, you can make a small"
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" movement with the mouse, or press a key that is not likely to cause"
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" any unintentional side-effects, for example, the \"Shift\" key."));
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#ifdef HAVE_DPMS
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int dummy;
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m_bDPMS = DPMSQueryExtension(tqt_xdisplay(), &dummy, &dummy);
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#endif
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TQVBoxLayout *top = new TQVBoxLayout(this, 0, KDialog::spacingHint());
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TQHBoxLayout *hbox = new TQHBoxLayout();
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top->addLayout(hbox);
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TQLabel *lbl;
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if (m_bDPMS) {
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m_pCBEnable= new TQCheckBox(i18n("&Enable display power management" ), this);
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connect(m_pCBEnable, TQT_SIGNAL(toggled(bool)), TQT_SLOT(slotChangeEnable(bool)));
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hbox->addWidget(m_pCBEnable);
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TQWhatsThis::add( m_pCBEnable, i18n("Check this option to enable the"
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" power saving features of your display.") );
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} else {
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lbl = new TQLabel(i18n("Your display does not support power saving."), this);
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hbox->addWidget(lbl);
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}
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KURLLabel *logo = new KURLLabel(this);
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logo->setURL("http://www.energystar.gov");
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logo->setPixmap(TQPixmap(locate("data", "kcontrol/pics/energybig.png")));
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logo->setTipText(i18n("Learn more about the Energy Star program"));
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logo->setUseTips(true);
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connect(logo, TQT_SIGNAL(leftClickedURL(const TQString&)), TQT_SLOT(openURL(const TQString &)));
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hbox->addStretch();
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hbox->addWidget(logo);
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// Sliders
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m_pStandbySlider = new KIntNumInput(m_Standby, this);
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m_pStandbySlider->setLabel(i18n("&Standby after:"));
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m_pStandbySlider->setRange(0, 120, 10);
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m_pStandbySlider->setSuffix(i18n(" min"));
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m_pStandbySlider->setSpecialValueText(i18n("Disabled"));
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connect(m_pStandbySlider, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(slotChangeStandby(int)));
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top->addWidget(m_pStandbySlider);
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TQWhatsThis::add( m_pStandbySlider, i18n("Choose the period of inactivity"
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" after which the display should enter \"standby\" mode. This is the"
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" first level of power saving.") );
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m_pSuspendSlider = new KIntNumInput(m_pStandbySlider, m_Suspend, this);
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m_pSuspendSlider->setLabel(i18n("S&uspend after:"));
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m_pSuspendSlider->setRange(0, 120, 10);
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m_pSuspendSlider->setSuffix(i18n(" min"));
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m_pSuspendSlider->setSpecialValueText(i18n("Disabled"));
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connect(m_pSuspendSlider, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(slotChangeSuspend(int)));
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top->addWidget(m_pSuspendSlider);
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TQWhatsThis::add( m_pSuspendSlider, i18n("Choose the period of inactivity"
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" after which the display should enter \"suspend\" mode. This is the"
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" second level of power saving, but may not be different from the first"
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" level for some displays.") );
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m_pOffSlider = new KIntNumInput(m_pSuspendSlider, m_Off, this);
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m_pOffSlider->setLabel(i18n("&Power off after:"));
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m_pOffSlider->setRange(0, 120, 10);
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m_pOffSlider->setSuffix(i18n(" min"));
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m_pOffSlider->setSpecialValueText(i18n("Disabled"));
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connect(m_pOffSlider, TQT_SIGNAL(valueChanged(int)), TQT_SLOT(slotChangeOff(int)));
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top->addWidget(m_pOffSlider);
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TQWhatsThis::add( m_pOffSlider, i18n("Choose the period of inactivity"
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" after which the display should be powered off. This is the"
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" greatest level of power saving that can be achieved while the"
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" display is still physically turned on.") );
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top->addStretch();
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if (m_bDPMS)
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setButtons( TDECModule::Help | TDECModule::Default | TDECModule::Apply );
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else
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setButtons( TDECModule::Help );
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m_pConfig = new TDEConfig("kcmdisplayrc", false /*readwrite*/, false /*no globals*/);
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m_pConfig->setGroup("DisplayEnergy");
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load();
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}
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KEnergy::~KEnergy()
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{
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delete m_pConfig;
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}
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void KEnergy::load()
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{
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load( false );
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}
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void KEnergy::load( bool useDefaults )
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{
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m_pConfig->setReadDefaults( useDefaults );
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readSettings();
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showSettings();
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emit changed( useDefaults );
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}
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void KEnergy::save()
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{
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writeSettings();
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applySettings(m_bEnabled, m_Standby, m_Suspend, m_Off);
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emit changed(false);
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}
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void KEnergy::defaults()
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{
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load( true );
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}
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void KEnergy::readSettings()
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{
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m_bEnabled = m_pConfig->readBoolEntry("displayEnergySaving", false);
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m_Standby = m_pConfig->readNumEntry("displayStandby", DFLT_STANDBY);
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m_Suspend = m_pConfig->readNumEntry("displaySuspend", DFLT_SUSPEND);
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m_Off = m_pConfig->readNumEntry("displayPowerOff", DFLT_OFF);
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m_StandbyDesired = m_Standby;
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m_SuspendDesired = m_Suspend;
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m_OffDesired = m_Off;
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m_bChanged = false;
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}
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void KEnergy::writeSettings()
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{
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if (!m_bChanged)
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return;
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m_pConfig->writeEntry( "displayEnergySaving", m_bEnabled);
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m_pConfig->writeEntry("displayStandby", m_Standby);
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m_pConfig->writeEntry("displaySuspend", m_Suspend);
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m_pConfig->writeEntry("displayPowerOff", m_Off);
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m_pConfig->sync();
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m_bChanged = false;
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}
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void KEnergy::showSettings()
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{
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m_bMaintainSanity = false;
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if (m_bDPMS)
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m_pCBEnable->setChecked(m_bEnabled);
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m_pStandbySlider->setEnabled(m_bEnabled);
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m_pStandbySlider->setValue(m_Standby);
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m_pSuspendSlider->setEnabled(m_bEnabled);
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m_pSuspendSlider->setValue(m_Suspend);
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m_pOffSlider->setEnabled(m_bEnabled);
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m_pOffSlider->setValue(m_Off);
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m_bMaintainSanity = true;
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}
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extern "C" {
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int dropError(Display *, XErrorEvent *);
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typedef int (*XErrFunc) (Display *, XErrorEvent *);
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}
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int dropError(Display *, XErrorEvent *)
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{
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return 0;
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}
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/* static */
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void KEnergy::applySettings(bool enable, int standby, int suspend, int off)
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{
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#ifdef HAVE_DPMS
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XErrFunc defaultHandler;
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defaultHandler = XSetErrorHandler(dropError);
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Display *dpy = tqt_xdisplay();
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int dummy;
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bool hasDPMS = DPMSQueryExtension(dpy, &dummy, &dummy);
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if (hasDPMS) {
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if (enable) {
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DPMSEnable(dpy);
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DPMSSetTimeouts(dpy, 60*standby, 60*suspend, 60*off);
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} else
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DPMSDisable(dpy);
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} else
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tqWarning("Server has no DPMS extension");
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XFlush(dpy);
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XSetErrorHandler(defaultHandler);
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#else
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/* keep gcc silent */
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if (enable | standby | suspend | off)
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/* nothing */ ;
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#endif
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}
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void KEnergy::slotChangeEnable(bool ena)
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{
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m_bEnabled = ena;
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m_bChanged = true;
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m_pStandbySlider->setEnabled(ena);
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m_pSuspendSlider->setEnabled(ena);
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m_pOffSlider->setEnabled(ena);
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emit changed(true);
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}
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void KEnergy::slotChangeStandby(int value)
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{
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m_Standby = value;
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if ( m_bMaintainSanity ) {
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m_bMaintainSanity = false;
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m_StandbyDesired = value;
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if ((m_Suspend > 0 && m_Standby > m_Suspend) ||
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(m_SuspendDesired && m_Standby >= m_SuspendDesired) )
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m_pSuspendSlider->setValue(m_Standby);
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if ((m_Off > 0 && m_Standby > m_Off) ||
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(m_OffDesired && m_Standby >= m_OffDesired) )
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m_pOffSlider->setValue(m_Standby);
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m_bMaintainSanity = true;
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}
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m_bChanged = true;
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emit changed(true);
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}
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void KEnergy::slotChangeSuspend(int value)
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{
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m_Suspend = value;
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if ( m_bMaintainSanity ) {
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m_bMaintainSanity = false;
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m_SuspendDesired = value;
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if (m_Suspend == 0 && m_StandbyDesired > 0)
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m_pStandbySlider->setValue( m_StandbyDesired );
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else if (m_Suspend < m_Standby || m_Suspend <= m_StandbyDesired )
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m_pStandbySlider->setValue(m_Suspend);
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if ((m_Off > 0 && m_Suspend > m_Off) ||
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(m_OffDesired && m_Suspend >= m_OffDesired) )
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m_pOffSlider->setValue(m_Suspend);
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m_bMaintainSanity = true;
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}
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m_bChanged = true;
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emit changed(true);
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}
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void KEnergy::slotChangeOff(int value)
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{
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m_Off = value;
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if ( m_bMaintainSanity ) {
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m_bMaintainSanity = false;
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m_OffDesired = value;
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if (m_Off == 0 && m_StandbyDesired > 0)
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m_pStandbySlider->setValue( m_StandbyDesired );
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else if (m_Off < m_Standby || m_Off <= m_StandbyDesired )
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m_pStandbySlider->setValue(m_Off);
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if (m_Off == 0 && m_SuspendDesired > 0)
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m_pSuspendSlider->setValue( m_SuspendDesired );
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else if (m_Off < m_Suspend || m_Off <= m_SuspendDesired )
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m_pSuspendSlider->setValue(m_Off);
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m_bMaintainSanity = true;
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}
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m_bChanged = true;
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emit changed(true);
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}
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void KEnergy::openURL(const TQString &URL)
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{
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new KRun(KURL( URL ));
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}
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#include "energy.moc"
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