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-rw-r--r--kgamma/kcmkgamma/kgamma.cpp625
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diff --git a/kgamma/kcmkgamma/kgamma.cpp b/kgamma/kcmkgamma/kgamma.cpp
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+/***************************************************************************
+ kgamma.cpp - description
+ -------------------
+ begin : Sun Dec 16 13:52:24 CET 2001
+ copyright : (C) 2001 by Michael v.Ostheim
+ email : MvOstheim@web.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 <unistd.h>
+
+#include <qlabel.h>
+#include <qpixmap.h>
+#include <qstring.h>
+#include <qlayout.h>
+#include <qstringlist.h>
+#include <qdir.h>
+#include <qcheckbox.h>
+#include <qcombobox.h>
+#include <qwidgetstack.h>
+
+#include <kstandarddirs.h>
+#include <kconfig.h>
+#include <klocale.h>
+#include <kglobal.h>
+#include <kprocess.h>
+#include <kdialog.h>
+#include <kgenericfactory.h>
+
+#include "config.h"
+#include "xf86configpath.h"
+#include "gammactrl.h"
+#include "xvidextwrap.h"
+#include "kgamma.h"
+#include "kgamma.moc"
+
+typedef KGenericFactory<KGamma, QWidget> KGammaFactory;
+K_EXPORT_COMPONENT_FACTORY ( kcm_kgamma, KGammaFactory( "kgamma" ) )
+
+extern "C"
+{
+ bool test_kgamma()
+ {
+ bool retval;
+ (void) new XVidExtWrap(&retval, NULL);
+ return retval;
+ }
+}
+
+KGamma::KGamma(QWidget *parent, const char *name, const QStringList&)
+ :KCModule(parent,name)
+{
+ bool ok;
+ GammaCorrection = true;
+ xv = new XVidExtWrap(&ok, NULL);
+ if (ok) { /* KDE 4: Uneccessary test, when all KCM wrappers do conditional loading */
+ xv->getGamma(XVidExtWrap::Red, &ok);
+ if (ok) {
+ ScreenCount = xv->_ScreenCount();
+ currentScreen = xv->getScreen();
+ xv->setGammaLimits(0.4, 3.5);
+
+ for (int i = 0; i < ScreenCount; i++ ) {
+ assign << 0;
+ rgamma << "";
+ ggamma << "";
+ bgamma << "";
+
+ // Store the current gamma values
+ xv->setScreen(i);
+ rbak << xv->getGamma(XVidExtWrap::Red);
+ gbak << xv->getGamma(XVidExtWrap::Green);
+ bbak << xv->getGamma(XVidExtWrap::Blue);
+ }
+ xv->setScreen(currentScreen);
+
+ rootProcess = new KProcess;
+ setupUI();
+ saved = false;
+
+ if (!loadSettings()) { //try to load gamma values from config file
+ // if failed, take current gamma values
+ for (int i = 0; i < ScreenCount; i++ ) {
+ rgamma[i].setNum(rbak[i], 'f', 2);
+ ggamma[i].setNum(gbak[i], 'f', 2);
+ bgamma[i].setNum(bbak[i], 'f', 2);
+ }
+ }
+ load();
+ }
+ else { //something is wrong, show only error message
+ GammaCorrection = false;
+ setupUI();
+ }
+ }
+}
+
+KGamma::~KGamma() {
+ // Restore the old gamma settings, if the user has not saved
+ // and there is no valid kgammarc.
+ // Existing user settings overwrite system settings
+ if (GammaCorrection) {
+ if ( loadUserSettings() ) load();
+ else if ( !saved )
+ for (int i = 0; i < ScreenCount; i++ ) {
+ xv->setScreen(i);
+ xv->setGamma( XVidExtWrap::Red, rbak[i] );
+ xv->setGamma( XVidExtWrap::Green, gbak[i] );
+ xv->setGamma( XVidExtWrap::Blue, bbak[i] );
+ }
+ delete rootProcess;
+ }
+ delete xv;
+}
+
+/** User interface */
+void KGamma::setupUI() {
+ QBoxLayout *topLayout = new QVBoxLayout(this, 0, KDialog::spacingHint());
+
+ if (GammaCorrection) {
+ QHBoxLayout *hbox = new QHBoxLayout( topLayout );
+ QLabel *label = new QLabel( i18n( "&Select test picture:" ) , this);
+ QComboBox *combo = new QComboBox( this );
+ label->setBuddy( combo );
+
+ QStringList list;
+ list << i18n( "Gray Scale" )
+ << i18n( "RGB Scale" )
+ << i18n( "CMY Scale" )
+ << i18n( "Dark Gray" )
+ << i18n( "Mid Gray" )
+ << i18n( "Light Gray" );
+ combo->insertStringList( list );
+
+ hbox->addWidget( label );
+ hbox->addWidget( combo );
+ hbox->addStretch();
+
+ QWidgetStack *stack = new QWidgetStack( this );
+ stack->setFrameStyle( QFrame::Box | QFrame::Raised );
+
+ connect( combo, SIGNAL( activated( int ) ),
+ stack, SLOT( raiseWidget( int ) ) );
+
+ QPixmap background;
+ background.load(locate("data", "kgamma/pics/background.png"));
+
+ QLabel *pic1 = new QLabel(stack);
+ pic1->setMinimumSize(530, 171);
+ pic1->setBackgroundPixmap(background);
+ pic1->setPixmap(QPixmap(locate("data", "kgamma/pics/greyscale.png")));
+ pic1->setAlignment(AlignCenter);
+ stack->addWidget( pic1, 0 );
+
+ QLabel *pic2 = new QLabel(stack);
+ pic2->setBackgroundPixmap(background);
+ pic2->setPixmap(QPixmap(locate("data", "kgamma/pics/rgbscale.png")));
+ pic2->setAlignment(AlignCenter);
+ stack->addWidget( pic2, 1 );
+
+ QLabel *pic3 = new QLabel(stack);
+ pic3->setBackgroundPixmap(background);
+ pic3->setPixmap(QPixmap(locate("data", "kgamma/pics/cmyscale.png")));
+ pic3->setAlignment(AlignCenter);
+ stack->addWidget( pic3, 2 );
+
+ QLabel *pic4 = new QLabel(stack);
+ pic4->setBackgroundPixmap(background);
+ pic4->setPixmap(QPixmap(locate("data", "kgamma/pics/darkgrey.png")));
+ pic4->setAlignment(AlignCenter);
+ stack->addWidget( pic4, 3 );
+
+ QLabel *pic5 = new QLabel(stack);
+ pic5->setBackgroundPixmap(background);
+ pic5->setPixmap(QPixmap(locate("data", "kgamma/pics/midgrey.png")));
+ pic5->setAlignment(AlignCenter);
+ stack->addWidget( pic5, 4 );
+
+ QLabel *pic6 = new QLabel(stack);
+ pic6->setBackgroundPixmap(background);
+ pic6->setPixmap(QPixmap(locate("data", "kgamma/pics/lightgrey.png")));
+ pic6->setAlignment(AlignCenter);
+ stack->addWidget( pic6, 5 );
+
+ topLayout->addWidget(stack, 10);
+
+ //Sliders for gamma correction
+ QFrame *frame1 = new QFrame(this);
+ frame1->setFrameStyle( QFrame::GroupBoxPanel | QFrame::Plain );
+
+ QFrame *frame2 = new QFrame(this);
+ frame2->setFrameStyle( QFrame::GroupBoxPanel | QFrame::Plain );
+
+ QLabel *gammalabel = new QLabel(this);
+ gammalabel->setText(i18n("Gamma:"));
+
+ QLabel *redlabel = new QLabel(this);
+ redlabel->setText(i18n("Red:"));
+
+ QLabel *greenlabel = new QLabel(this);
+ greenlabel->setText(i18n("Green:"));
+
+ QLabel *bluelabel = new QLabel(this);
+ bluelabel->setText(i18n("Blue:"));
+
+ gctrl = new GammaCtrl(this, xv);
+ connect(gctrl, SIGNAL(gammaChanged(int)), SLOT(Changed()));
+ connect(gctrl, SIGNAL(gammaChanged(int)), SLOT(SyncScreens()));
+ gammalabel->setBuddy( gctrl );
+
+ rgctrl = new GammaCtrl(this, xv, XVidExtWrap::Red);
+ connect(rgctrl, SIGNAL(gammaChanged(int)), SLOT(Changed()));
+ connect(rgctrl, SIGNAL(gammaChanged(int)), SLOT(SyncScreens()));
+ connect(gctrl, SIGNAL(gammaChanged(int)), rgctrl, SLOT(setCtrl(int)));
+ connect(rgctrl, SIGNAL(gammaChanged(int)), gctrl, SLOT(suspend()));
+ redlabel->setBuddy( rgctrl );
+
+ ggctrl = new GammaCtrl(this, xv, XVidExtWrap::Green);
+ connect(ggctrl, SIGNAL(gammaChanged(int)), SLOT(Changed()));
+ connect(ggctrl, SIGNAL(gammaChanged(int)), SLOT(SyncScreens()));
+ connect(gctrl, SIGNAL(gammaChanged(int)), ggctrl, SLOT(setCtrl(int)));
+ connect(ggctrl, SIGNAL(gammaChanged(int)), gctrl, SLOT(suspend()));
+ greenlabel->setBuddy( ggctrl );
+
+ bgctrl = new GammaCtrl(this, xv, XVidExtWrap::Blue);
+ connect(bgctrl, SIGNAL(gammaChanged(int)), SLOT(Changed()));
+ connect(bgctrl, SIGNAL(gammaChanged(int)), SLOT(SyncScreens()));
+ connect(gctrl, SIGNAL(gammaChanged(int)), bgctrl, SLOT(setCtrl(int)));
+ connect(bgctrl, SIGNAL(gammaChanged(int)), gctrl, SLOT(suspend()));
+ bluelabel->setBuddy( bgctrl );
+
+ QGridLayout *grid = new QGridLayout(4, 9);
+ grid->setSpacing(8);
+ grid->addMultiCellWidget(frame1, 0, 2, 0, 3);
+ grid->addMultiCellWidget(frame2, 4, 8, 0, 3);
+ grid->addWidget(gammalabel, 1, 1, Qt::AlignRight);
+ grid->addWidget(redlabel, 5, 1, Qt::AlignRight);
+ grid->addWidget(greenlabel, 6, 1, Qt::AlignRight);
+ grid->addWidget(bluelabel, 7, 1, Qt::AlignRight);
+ grid->addWidget(gctrl, 1, 2);
+ grid->addWidget(rgctrl, 5, 2);
+ grid->addWidget(ggctrl, 6, 2);
+ grid->addWidget(bgctrl, 7, 2);
+
+ topLayout->addLayout(grid);
+
+ //Options
+ QHBox *options = new QHBox(this);
+
+ xf86cfgbox = new QCheckBox( i18n("Save settings to XF86Config"), options );
+ connect(xf86cfgbox, SIGNAL(clicked()), SLOT(changeConfig()));
+
+ syncbox = new QCheckBox( i18n("Sync screens"), options );
+ connect(syncbox, SIGNAL(clicked()), SLOT(SyncScreens()));
+ connect(syncbox, SIGNAL(clicked()), SLOT(Changed()));
+
+ screenselect = new QComboBox( options );
+ for ( int i = 0; i < ScreenCount; i++ )
+ screenselect->insertItem( i18n("Screen %1").arg(i+1) );
+ screenselect->setCurrentItem(currentScreen);
+ connect(screenselect, SIGNAL(activated(int)), SLOT(changeScreen(int)));
+
+ options->setSpacing( 10 );
+ options->setStretchFactor( xf86cfgbox, 10 );
+ options->setStretchFactor( syncbox, 1 );
+ options->setStretchFactor( screenselect, 1 );
+
+ topLayout->addWidget(options);
+ }
+ else {
+ QLabel *error = new QLabel(this);
+ error->setText(i18n("Gamma correction is not supported by your"
+ " graphics hardware or driver."));
+ error->setAlignment(AlignCenter);
+ topLayout->addWidget(error);
+ }
+}
+
+void KGamma::load() {
+ load( false );
+}
+
+/** Restore latest saved gamma values */
+void KGamma::load(bool useDefaults) {
+ if (GammaCorrection) {
+ KConfig *config = new KConfig("kgammarc");
+
+ config->setReadDefaults( useDefaults );
+
+ config->setGroup("ConfigFile");
+
+ // save checkbox status
+ if ( xf86cfgbox->isChecked() ) config->writeEntry("use", "XF86Config");
+ else config->writeEntry("use", "kgammarc");
+
+ // load syncbox status
+ config->setGroup("SyncBox");
+ if ( config->readEntry("sync") == "yes" ) syncbox->setChecked(true);
+ else syncbox->setChecked(false);
+
+ config->sync();
+ delete config;
+
+ for (int i = 0; i < ScreenCount; i++) {
+ xv->setScreen(i);
+ if (rgamma[i] == ggamma[i] && rgamma[i] == bgamma[i])
+ if (i == currentScreen) gctrl->setGamma(rgamma[i]);
+ else xv->setGamma(XVidExtWrap::Value, rgamma[i].toFloat());
+ else {
+ if (i == currentScreen) {
+ rgctrl->setGamma(rgamma[i]);
+ ggctrl->setGamma(ggamma[i]);
+ bgctrl->setGamma(bgamma[i]);
+ gctrl->suspend();
+ }
+ else {
+ xv->setGamma(XVidExtWrap::Red, rgamma[i].toFloat());
+ xv->setGamma(XVidExtWrap::Green, ggamma[i].toFloat());
+ xv->setGamma(XVidExtWrap::Blue, bgamma[i].toFloat());
+ }
+ }
+ }
+ xv->setScreen(currentScreen);
+
+ emit changed(useDefaults);
+ }
+}
+
+void KGamma::save() {
+ if (GammaCorrection) {
+ for (int i = 0; i < ScreenCount; i++) {
+ xv->setScreen(i);
+ rgamma[i] = rgctrl->gamma(2);
+ ggamma[i] = ggctrl->gamma(2);
+ bgamma[i] = bgctrl->gamma(2);
+ }
+ xv->setScreen(currentScreen);
+
+ KConfig *config = new KConfig("kgammarc");
+ config->setGroup("SyncBox");
+ if ( syncbox->isChecked() ) config->writeEntry("sync", "yes");
+ else config->writeEntry("sync", "no");
+
+ if ( !xf86cfgbox->isChecked() ) { //write gamma settings to the users config
+ for (int i = 0; i < ScreenCount; i++) {
+ config->setGroup( QString("Screen %1").arg(i) );
+ config->writeEntry("rgamma", rgamma[i]);
+ config->writeEntry("ggamma", ggamma[i]);
+ config->writeEntry("bgamma", bgamma[i]);
+ }
+ config->setGroup("ConfigFile");
+ config->writeEntry("use", "kgammarc");
+ }
+ else { // write gamma settings to section "Monitor" of XF86Config
+ config->setGroup("ConfigFile");
+ config->writeEntry("use", "XF86Config");
+
+ if ( !rootProcess->isRunning() ) {
+ QString Arguments = "xf86gammacfg ";
+ for (int i = 0; i < ScreenCount; i++)
+ Arguments += rgamma[assign[i]] + " " + ggamma[assign[i]] + " " + \
+ bgamma[assign[i]] + " ";
+ rootProcess->clearArguments();
+ *rootProcess << "kdesu" << Arguments;
+ rootProcess->start();
+ }
+ }
+ config->sync();
+ delete config;
+ saved = true;
+ emit changed(false);
+ }
+}
+
+void KGamma::defaults() {
+ load( true );
+}
+
+bool KGamma::loadSettings() {
+ KConfig *config = new KConfig("kgammarc");
+ config->setGroup("ConfigFile");
+ QString ConfigFile( config->readEntry("use") );
+ config->setGroup("SyncBox");
+ if ( config->readEntry("sync") == "yes" ) syncbox->setChecked(true);
+ delete config;
+
+ if ( ConfigFile == "XF86Config" ) { // parse XF86Config
+ xf86cfgbox->setChecked(true);
+ return( loadSystemSettings() );
+ }
+ else { //get gamma settings from user config
+ return( loadUserSettings() );
+ }
+}
+
+bool KGamma::loadUserSettings() {
+ KConfig *config = new KConfig("kgammarc");
+
+ for (int i = 0; i < ScreenCount; i++) {
+ config->setGroup(QString( "Screen %1" ).arg(i) );
+ rgamma[i] = config->readEntry("rgamma");
+ ggamma[i] = config->readEntry("ggamma");
+ bgamma[i] = config->readEntry("bgamma");
+ }
+ delete config;
+
+ return( validateGammaValues() );
+}
+
+bool KGamma::loadSystemSettings() {
+ QStringList Monitor, Screen, ScreenLayout, ScreenMonitor, Gamma;
+ QValueList<int> ScreenNr;
+ QString Section;
+ XF86ConfigPath Path;
+
+ QFile f( Path.get() );
+ if ( f.open(IO_ReadOnly) ) {
+ QTextStream t( &f );
+ QString s;
+ int sn = 0;
+ bool gm = false;
+
+ // Analyse Screen<->Monitor assignments of multi-head configurations
+ while ( !t.eof() ) {
+ s = (t.readLine()).simplifyWhiteSpace();
+ QStringList words = QStringList::split(' ', s);
+
+ if ( !words.empty() ) {
+ if ( words[0] == "Section" && words.size() > 1 ) {
+ if ( (Section = words[1]) == "\"Monitor\"" ) gm = false;
+ }
+ else if ( words[0] == "EndSection" ) {
+ if ( Section == "\"Monitor\"" && !gm ) {
+ Gamma << "";
+ gm = false;
+ }
+ Section = "";
+ }
+ else if ( words[0] == "Identifier" && words.size() > 1 ) {
+ if ( Section == "\"Monitor\"" ) Monitor << words[1];
+ else if ( Section == "\"Screen\"" ) Screen << words[1];
+ }
+ else if ( words[0] == "Screen" && words.size() > 1 ) {
+ if ( Section == "\"ServerLayout\"" ) {
+ bool ok;
+ int i = words[1].toInt(&ok);
+ if ( ok && words.size() > 2 ) {
+ ScreenNr << i;
+ ScreenLayout << words[2];
+ }
+ else {
+ ScreenNr << sn++;
+ ScreenLayout << words[1];
+ }
+ }
+ }
+ else if ( words[0] == "Monitor" && words.size() > 1 ) {
+ if ( Section == "\"Screen\"" )
+ ScreenMonitor << words[1];
+ }
+ else if ( words[0] == "Gamma" ) {
+ if ( Section == "\"Monitor\"" ) {
+ Gamma << s;
+ gm = true;
+ }
+ }
+ }
+ } // End while
+ f.close();
+
+ for ( int i = 0; i < ScreenCount; i++ ) {
+ for ( int j = 0; j < ScreenCount; j++ ) {
+ if ( ScreenLayout[i] == Screen[j] ) {
+ for ( int k = 0; k < ScreenCount; k++ ) {
+ if ( Monitor[k] == ScreenMonitor[j] )
+ assign[ScreenNr[i]] = k;
+ }
+ }
+ }
+ }
+
+ // Extract gamma values
+ for ( int i = 0; i < ScreenCount; i++) {
+ rgamma[i] = ggamma[i] = bgamma[i] = "";
+
+ QStringList words = QStringList::split(' ', Gamma[assign[i]]);
+ QStringList::ConstIterator it = words.begin();
+ if ( words.size() < 4 )
+ rgamma[i] = ggamma[i] = bgamma[i] = *(++it); // single gamma value
+ else {
+ rgamma[i] = *(++it); // eventually rgb gamma values
+ ggamma[i] = *(++it);
+ bgamma[i] = *(++it);
+ }
+ }
+
+ }
+ return( validateGammaValues() );
+}
+
+bool KGamma::validateGammaValues() {
+ bool rOk, gOk, bOk, result;
+
+ result = true;
+ for (int i = 0; i < ScreenCount; i++ ) {
+ rgamma[i].toFloat( &rOk );
+ ggamma[i].toFloat( &gOk );
+ bgamma[i].toFloat( &bOk );
+
+ if ( !(rOk && gOk && bOk) ) {
+ if ( rOk ) ggamma[i] = bgamma[i] = rgamma[i];
+ else result = false;
+ }
+ }
+ return(result);
+}
+
+void KGamma::changeConfig() {
+ bool Ok = false;
+
+ if ( xf86cfgbox->isChecked() ) Ok = loadSystemSettings();
+ else Ok = loadUserSettings();
+
+ if ( !Ok ) {
+ for (int i = 0; i < ScreenCount; i++ ) {
+ xv->setScreen(i);
+ rgamma[i].setNum(xv->getGamma(XVidExtWrap::Red), 'f', 2);
+ ggamma[i].setNum(xv->getGamma(XVidExtWrap::Green), 'f', 2);
+ bgamma[i].setNum(xv->getGamma(XVidExtWrap::Blue), 'f', 2);
+ }
+ xv->setScreen(currentScreen);
+ }
+ load();
+}
+
+void KGamma::SyncScreens() {
+ if ( syncbox->isChecked() ) {
+ float rg = xv->getGamma(XVidExtWrap::Red);
+ float gg = xv->getGamma(XVidExtWrap::Green);
+ float bg = xv->getGamma(XVidExtWrap::Blue);
+
+ for (int i = 0; i < ScreenCount; i++ ) {
+ if ( i != currentScreen ) {
+ xv->setScreen(i);
+ xv->setGamma(XVidExtWrap::Red, rg);
+ xv->setGamma(XVidExtWrap::Green, gg);
+ xv->setGamma(XVidExtWrap::Blue, bg);
+ }
+ }
+ xv->setScreen(currentScreen);
+ }
+}
+
+void KGamma::changeScreen(int sn) {
+ QString red, green, blue;
+
+ xv->setScreen(sn);
+ currentScreen = sn;
+
+ red.setNum(xv->getGamma(XVidExtWrap::Red), 'f', 2);
+ green.setNum(xv->getGamma(XVidExtWrap::Green), 'f', 2);
+ blue.setNum(xv->getGamma(XVidExtWrap::Blue), 'f', 2);
+
+ gctrl->setControl(red);
+ rgctrl->setControl(red);
+ ggctrl->setControl(green);
+ bgctrl->setControl(blue);
+ if (red != green || red != blue) gctrl->suspend();
+}
+
+int KGamma::buttons () {
+ return Default|Apply|Help;
+}
+
+QString KGamma::quickHelp() const
+{
+ return i18n("<h1>Monitor Gamma</h1> This is a tool for changing monitor gamma"
+ " correction. Use the four sliders to define the gamma correction either"
+ " as a single value, or separately for the red, green and blue components."
+ " You may need to correct the brightness and contrast settings of your"
+ " monitor for good results. The test images help you to find proper"
+ " settings.<br> You can save them system-wide to XF86Config (root access"
+ " is required for that) or to your own KDE settings. On multi head"
+ " systems you can correct the gamma values separately for all screens.");
+}
+
+
+// ------------------------------------------------------------------------
+
+extern "C"
+{
+ // Restore the user gamma settings
+ void init_kgamma()
+ {
+ bool ok;
+ XVidExtWrap xv(&ok);
+
+ if (ok) {
+ xv.setGammaLimits(0.4, 3.5);
+ float rgamma, ggamma, bgamma;
+ KConfig *config = new KConfig("kgammarc");
+
+ for (int i = 0; i < xv._ScreenCount(); i++) {
+ xv.setScreen(i);
+ config->setGroup( QString("Screen %1").arg(i) );
+
+ if ((rgamma = config->readEntry("rgamma").toFloat()))
+ xv.setGamma(XVidExtWrap::Red, rgamma);
+ if ((ggamma = config->readEntry("ggamma").toFloat()))
+ xv.setGamma(XVidExtWrap::Green, ggamma);
+ if ((bgamma = config->readEntry("bgamma").toFloat()))
+ xv.setGamma(XVidExtWrap::Blue, bgamma);
+ }
+ delete config;
+ }
+ }
+}
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