klaptopdaemon

battery.cpp

00001 /*
00002  * battery.cpp
00003  *
00004  * Copyright (c) 1999 Paul Campbell <paul@taniwha.com>
00005  * Copyright (c) 2002 Marc Mutz <mutz@kde.org>
00006  *
00007  * Requires the Qt widget libraries, available at no cost at
00008  * http://www.troll.no/
00009  *
00010  *  This program is free software; you can redistribute it and/or modify
00011  *  it under the terms of the GNU General Public License as published by
00012  *  the Free Software Foundation; either version 2 of the License, or
00013  *  (at your option) any later version.
00014  *
00015  *  This program is distributed in the hope that it will be useful,
00016  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00017  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018  *  GNU General Public License for more details.
00019  *
00020  *  You should have received a copy of the GNU General Public License
00021  *  along with this program; if not, write to the Free Software
00022  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00023  */
00024 
00025 // my headers:
00026 #include "battery.h"
00027 #include "version.h"
00028 #include "portable.h"
00029 
00030 // other KDE headers:
00031 #include <klocale.h>
00032 #include <kconfig.h>
00033 #include <knuminput.h>
00034 #include <kiconloader.h>
00035 #include <kicondialog.h>
00036 #include <kapplication.h>
00037 #include <kmessagebox.h>
00038 #include <krichtextlabel.h>
00039 
00040 // other Qt headers:
00041 #include <QLayout>
00042 #include <QLabel>
00043 #include <QCheckBox>
00044 #include <q3hbox.h>
00045 #include <q3grid.h>
00046 #include <Q3GroupBox>
00047 #include <QPushButton>
00048 
00049 //Added by qt3to4:
00050 #include <QPixmap>
00051 #include <QHBoxLayout>
00052 #include <QTimerEvent>
00053 #include <QVBoxLayout>
00054 extern void wake_laptop_daemon();
00055 
00056 
00057 BatteryConfig::BatteryConfig (const KComponentData &inst,QWidget * parent)
00058   : KCModule(inst,parent),
00059     editPoll(0),
00060     iconloader(0),
00061     buttonNoBattery(0),
00062     buttonNoCharge(0),
00063     buttonCharge(0),
00064     instance("klaptopdaemon")
00065 {
00066     KGlobal::locale()->insertCatalog("klaptopdaemon"); // For translation of klaptopdaemon messages
00067 
00068     apm = laptop_portable::has_power_management();
00069     config =  new KConfig("kcmlaptoprc");
00070 
00071     QVBoxLayout *top_layout = new QVBoxLayout( this );
00072     top_layout->setMargin( KDialog::marginHint());
00073     top_layout->setSpacing( KDialog::spacingHint() );
00074 
00075     // do we show the monitor
00076     runMonitor = new QCheckBox( i18n("&Show battery monitor"), this );
00077     top_layout->addWidget( runMonitor );
00078     runMonitor->setToolTip( i18n( "This box enables the battery state icon in the panel" ) );
00079     connect( runMonitor, SIGNAL(clicked()), this, SLOT(configChanged()) );
00080 
00081     notifyMe = new QCheckBox( i18n("&Notify me whenever my battery becomes fully charged"), this );
00082     top_layout->addWidget( notifyMe );
00083     notifyMe->setToolTip( i18n( "This box enables a dialog box that pops up when your battery becomes fully charged" ) );
00084     connect( notifyMe, SIGNAL(clicked()), this, SLOT(configChanged()) );
00085 
00086     blankSaver = new QCheckBox( i18n("&Use a blank screen saver when running on battery"), this );
00087     top_layout->addWidget( blankSaver );
00088     connect( blankSaver, SIGNAL(clicked()), this, SLOT(configChanged()) );
00089 
00090     if (!apm) {
00091       top_layout->addWidget( laptop_portable::no_power_management_explanation(this) );
00092     } else {
00093       iconloader = new KIconLoader("klaptopdaemon");
00094 
00095       // the poll time (in seconds)
00096       QWidget *hb = new QWidget(this );
00097       QHBoxLayout *hboxLayout1 = new QHBoxLayout(hb);
00098       hb->setLayout(hboxLayout1);
00099       hboxLayout1->setSpacing( KDialog::spacingHint() );
00100       top_layout->addWidget( hb );
00101 
00102       QLabel* poll_label = new QLabel( i18n("&Check status every:"), hb );
00103       editPoll = new QSpinBox( 1, 3600, 1, hb ); // min,max,step
00104       editPoll->setToolTip( i18n( "Choose how responsive the laptop software will be when it checks the battery status" ) );
00105       editPoll->setSuffix( i18nc("keep short, unit in spinbox", "sec") );
00106       poll_label->setBuddy( editPoll );
00107       connect( editPoll, SIGNAL(valueChanged(int)),
00108            this, SLOT(configChanged()) );
00109       QWidget* spacer = new QWidget( hb );
00110       hboxLayout1->setStretchFactor( spacer, 1 );
00111 
00112       // group box to hold the icons together
00113       Q3GroupBox* icons_groupbox = new Q3GroupBox (1, Qt::Horizontal, i18n("Select Battery Icons"), this );
00114       icons_groupbox->layout()->setSpacing( KDialog::spacingHint() );
00115       top_layout->addWidget( icons_groupbox, 0, Qt::AlignLeft );
00116 
00117       // layout to hold the icons inside the groupbox
00118       Q3Grid *icon_grid = new Q3Grid( 3 /*cols*/, icons_groupbox );
00119       icon_grid->setSpacing( KDialog::spacingHint() );
00120 
00121       buttonNoBattery = new KIconButton( iconloader, icon_grid );
00122       buttonNoCharge  = new KIconButton( iconloader, icon_grid );
00123       buttonCharge    = new KIconButton( iconloader, icon_grid );
00124       (void)new QLabel( buttonNoBattery, i18n("No &battery"), icon_grid);
00125       (void)new QLabel( buttonNoCharge, i18n("&Not charging"), icon_grid);
00126       (void)new QLabel( buttonCharge, i18n("Char&ging"), icon_grid);
00127       buttonNoBattery->setIconType( KIconLoader::NoGroup, KIconLoader::Any, 1);
00128       buttonNoCharge->setIconType( KIconLoader::NoGroup, KIconLoader::Any, 1);
00129       buttonCharge->setIconType( KIconLoader::NoGroup, KIconLoader::Any, 1);
00130       connect(buttonNoBattery, SIGNAL(iconChanged(QString)), this, SLOT(iconChanged()));
00131       connect(buttonNoCharge, SIGNAL(iconChanged(QString)), this, SLOT(iconChanged()));
00132       connect(buttonCharge, SIGNAL(iconChanged(QString)), this, SLOT(configChanged()));
00133 
00134 
00135       int num_batteries;
00136       QStringList battery_names, battery_states, battery_values;
00137       laptop_portable::get_battery_status(num_batteries, battery_names, battery_states, battery_values);
00138       if (num_batteries > 0) {
00139         QHBoxLayout *hl = new QHBoxLayout();
00140         top_layout->addLayout(hl);
00141 
00142         Q3GroupBox *hb = new Q3GroupBox(1, Qt::Vertical ,i18n("Current Battery Status"), this);
00143         for (int i = 0; i < num_batteries; i++) {
00144 
00145         QWidget *wp;
00146         if (num_batteries == 1) {
00147             wp = new QWidget(hb);
00148         } else {
00149             wp = new Q3GroupBox(battery_names[i], hb);
00150         }
00151             QVBoxLayout *vb = new QVBoxLayout(wp);
00152 
00153         QLabel *l;
00154 
00155         l = new QLabel(wp);                 // icon indicating state
00156         vb->addWidget(l);
00157         batt_label_1.append(l);
00158 
00159         l = new QLabel(QString(""), wp);
00160         vb->addWidget(l);
00161         batt_label_2.append(l);
00162 
00163         l = new QLabel(QString(""), wp);
00164         vb->addWidget(l);
00165         batt_label_3.append(l);
00166         }   
00167         hl->addWidget(hb);
00168         hl->addStretch(1);
00169             (void)startTimer(30*1000);  // update 2x every minute
00170       }
00171 
00172       // TODO: remove linefeed from string, can't do it right now coz we have a string freeze
00173       QLabel* explain = new KRichTextLabel( i18n("This panel controls whether the battery status monitor\nappears in the system tray and what it looks like.").replace("\n"," "), this);
00174       top_layout->addWidget(explain, 0);
00175       laptop_portable::extra_config(this, config, top_layout);
00176     }
00177 
00178     top_layout->addStretch(1);
00179     startMonitor = new QPushButton( i18n("&Start Battery Monitor"), this);
00180     connect(startMonitor, SIGNAL(clicked()), this, SLOT(slotStartMonitor()));
00181     top_layout->addWidget( startMonitor, 0, Qt::AlignRight );
00182 
00183     load();
00184 }
00185 
00186 BatteryConfig::~BatteryConfig()
00187 {
00188   delete config;
00189 }
00190 
00191 
00192 void BatteryConfig::save()
00193 {
00194         enablemonitor = runMonitor->isChecked();
00195         useblanksaver = blankSaver->isChecked();
00196         notifyme = notifyMe->isChecked();
00197 
00198         if (apm) {
00199                 poll_time = editPoll->value();
00200                 nobattery =  buttonNoBattery->icon();
00201                 chargebattery =  buttonCharge->icon();
00202                 nochargebattery =  buttonNoCharge->icon();
00203         }
00204         config->setGroup("BatteryDefault");
00205 
00206         config->writeEntry("Enable", enablemonitor);
00207         config->writeEntry("NotifyMe", notifyme);
00208         config->writeEntry("BlankSaver", useblanksaver);
00209         config->writeEntry("Poll", poll_time);
00210         config->writeEntry("NoBatteryPixmap", nobattery);
00211         config->writeEntry("ChargePixmap", chargebattery);
00212         config->writeEntry("NoChargePixmap", nochargebattery);
00213     config->sync();
00214         changed(false);
00215     wake_laptop_daemon();
00216 }
00217 
00218 void BatteryConfig::load()
00219 {
00220         config->setGroup("BatteryDefault");
00221 
00222         poll_time = config->readEntry("Poll", 20);
00223         enablemonitor = config->readEntry("Enable", true);
00224         notifyme = config->readEntry("NotifyMe", false);
00225         useblanksaver = config->readEntry("BlankSaver", false);
00226 
00227         nobattery = config->readEntry("NoBatteryPixmap", "battery-missing");
00228         nochargebattery = config->readEntry("NoChargePixmap", "laptop_nocharge");
00229         chargebattery = config->readEntry("ChargePixmap", "battery-charging");
00230 
00231         runMonitor->setChecked(enablemonitor);
00232     blankSaver->setChecked(useblanksaver);
00233     notifyMe->setChecked(notifyme);
00234         if (apm) {
00235                 editPoll->setValue(poll_time);
00236                 buttonNoCharge->setIcon(nochargebattery);
00237                 buttonCharge->setIcon(chargebattery);
00238             buttonNoBattery->setIcon(nobattery);
00239         }
00240         battery_pm = SmallIcon(nochargebattery, 20, KIconLoader::DefaultState, instance);
00241         battery_nopm = SmallIcon(nobattery, 20, KIconLoader::DefaultState, instance);
00242         changed(false);
00243     BatteryStateUpdate();
00244 }
00245 
00246 void BatteryConfig::defaults()
00247 {
00248         poll_time = 20;
00249         enablemonitor = true;
00250     useblanksaver = false;
00251     notifyme = false;
00252 
00253         nobattery = "battery-missing";
00254         nochargebattery = "laptop_nocharge";
00255         chargebattery = "battery-charging";
00256 
00257         runMonitor->setChecked(enablemonitor);
00258         notifyMe->setChecked(notifyme);
00259     blankSaver->setChecked(useblanksaver);
00260         if (apm) {
00261                 editPoll->setValue(poll_time);
00262                 buttonNoCharge->setIcon(nochargebattery);
00263                 buttonCharge->setIcon(chargebattery);
00264                 buttonNoBattery->setIcon(nobattery);
00265         }
00266         battery_pm = SmallIcon(nochargebattery, 20, KIconLoader::DefaultState, instance);
00267         battery_nopm = SmallIcon(nobattery, 20, KIconLoader::DefaultState, instance);
00268         changed(true);
00269     BatteryStateUpdate();
00270 }
00271 
00272 
00273 void BatteryConfig::configChanged()
00274 {
00275   emit changed(true);
00276 }
00277 
00278 
00279 QString BatteryConfig::quickHelp() const
00280 {
00281   return i18n("<h1>Laptop Battery</h1>This module allows you to monitor "
00282     "your batteries. To make use of this module, you must have power management system software "
00283     "installed. (And, of course, you should have batteries in your machine.)");
00284 }
00285 
00286 
00287 void BatteryConfig::slotStartMonitor()
00288 {
00289     wake_laptop_daemon();
00290     if (!enablemonitor) {
00291         KMessageBox::information(0, i18n("<qt>The battery monitor has been started, but the tray icon is currently disabled.  You can make it appear by selecting the <b>Show battery monitor</b> entry on this page and applying your changes.</qt>"), QString(), "howToEnableMonitor");
00292     }
00293 }
00294 
00295 void
00296 BatteryConfig::ConvertIcon(int percent, QPixmap &pm, QPixmap &result)
00297 {
00298     QImage image = pm.toImage();
00299 
00300     int w = image.width();
00301     int h = image.height();
00302     int count = 0;
00303     QRgb rgb;
00304     int x, y;
00305     for (x = 0; x < w; x++)
00306     for (y = 0; y < h; y++) {
00307         rgb = image.pixel(x, y);
00308         if (qRed(rgb) == 0xff &&
00309             qGreen(rgb) == 0xff &&
00310             qBlue(rgb) == 0xff)
00311             count++;
00312     }
00313     int c = (count*percent)/100;
00314     if (percent == 100) {
00315         c = count;
00316     } else
00317     if (percent != 100 && c == count)
00318         c = count-1;
00319 
00320 
00321     if (c) {
00322         uint ui;
00323         QRgb blue = qRgb(0x00,0x00,0xff);
00324 
00325         if (image.depth() <= 8) {
00326             ui = image.numColors();     // this fix thanks to Sven Krumpke
00327             image.setNumColors(ui+1);
00328             image.setColor(ui, blue);
00329         } else {
00330             ui = 0xff000000|blue;
00331         }
00332 
00333         for (y = h-1; y >= 0; y--)
00334         for (x = 0; x < w; x++) {
00335             rgb = image.pixel(x, y);
00336             if (qRed(rgb) == 0xff &&
00337                     qGreen(rgb) == 0xff &&
00338                     qBlue(rgb) == 0xff) {
00339                 image.setPixel(x, y, ui);
00340                 c--;
00341                 if (c <= 0)
00342                     goto quit;
00343             }
00344         }
00345     }
00346 quit:
00347 
00348     result = QPixmap::fromImage(image);
00349 }
00350 
00351 void
00352 BatteryConfig::BatteryStateUpdate()
00353 {
00354     int num_batteries;
00355     QStringList battery_names, battery_states, battery_values;
00356     laptop_portable::get_battery_status(num_batteries, battery_names, battery_states, battery_values);
00357     if (num_batteries > 0) {
00358         for (int i = 0; i < num_batteries; i++) {
00359         if (battery_states[i] == "yes") {
00360             QPixmap result;
00361             ConvertIcon(battery_values[i].toInt(), battery_pm, result);
00362             batt_label_1.at(i)->setPixmap(result);
00363 
00364             batt_label_2.at(i)->setText(battery_values[i]+"%");
00365 
00366             batt_label_3.at(i)->setText(i18n("Present"));
00367         } else {
00368             batt_label_1.at(i)->setPixmap(battery_nopm);
00369 
00370             batt_label_2.at(i)->setText("");
00371 
00372             batt_label_3.at(i)->setText(i18n("Not present"));
00373         }
00374         }   
00375     }
00376 }
00377 
00378 void BatteryConfig::iconChanged()
00379 {
00380     nobattery =  buttonNoBattery->icon();
00381     nochargebattery =  buttonNoCharge->icon();
00382     battery_pm = SmallIcon(nochargebattery, 20, KIconLoader::DefaultState, instance);
00383     battery_nopm = SmallIcon(nobattery, 20, KIconLoader::DefaultState, instance);
00384     emit changed(true);
00385     BatteryStateUpdate();
00386 }
00387 
00388 void BatteryConfig::timerEvent(QTimerEvent *)
00389 {
00390     BatteryStateUpdate();
00391 }
00392 
00393 #include "battery.moc"
00394 
00395
klaptopdaemon

battery.cpp

klaptopdaemon

kdeutils
