VP1QtUtils Class Reference

#include <VP1QtUtils.h>

Collaboration diagram for VP1QtUtils:

Static Public Member Functions
static bool	expertSettingIsSet (const QString &type, const QString &name)
static QString	expertSettingValue (const QString &type, const QString &name)
static bool	expertSettingIsOn (const QString &type, const QString &name)
static void	setExpertSetting (const QString &type, const QString &name, const QString &content)
static bool	environmentVariableIsSet (const QString &name)
static QString	environmentVariableValue (const QString &name)
static bool	environmentVariableIsOn (const QString &name)
static void	setEnvironmentVariable (const QString &name, const QString &content)
static void	unsetEnvironmentVariable (const QString &name)
static QImage	fadeImage (QImage img0, QImage img1, double fadefact)

Private Member Functions
	VP1QtUtils ()
	~VP1QtUtils ()

Detailed Description

Definition at line 24 of file VP1QtUtils.h.

Constructor & Destructor Documentation

VP1QtUtils()

VP1QtUtils::VP1QtUtils ( )

private

~VP1QtUtils()

VP1QtUtils::~VP1QtUtils ( )

private

Member Function Documentation

environmentVariableIsOn()

bool VP1QtUtils::environmentVariableIsOn ( const QString & name )

static

Definition at line 127 of file VP1QtUtils.cxx.

{
  QByteArray env = qgetenv(name.toStdString().c_str());
  QString val(env.isNull() ? "" : QString ( env ));
  bool ison = true;
  if (val==""||val=="0")
    ison = false;
  else if (0==QString::compare(val,"false",Qt::CaseInsensitive))
    ison = false;
  else if (0==QString::compare(val,"off",Qt::CaseInsensitive))
    ison = false;
  else if (0==QString::compare(val,"no",Qt::CaseInsensitive))
    ison = false;
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::environmentVariableIsOn called for variable '"+name+"'. Returning "+ VP1Msg::str(ison)+".");
  return ison;
}

environmentVariableIsSet()

bool VP1QtUtils::environmentVariableIsSet ( const QString & name )

static

Definition at line 108 of file VP1QtUtils.cxx.

{
  const bool set = !qgetenv(name.toStdString().c_str()).isNull();
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::environmentVariableIsSet called for variable '"+name+"'. Returning "+VP1Msg::str(set));
  return set;
}

environmentVariableValue()

QString VP1QtUtils::environmentVariableValue ( const QString & name )

static

Definition at line 117 of file VP1QtUtils.cxx.

{
  QByteArray env = qgetenv(name.toStdString().c_str());
  QString val(env.isNull() ? "" : QString ( env ));
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::environmentVariableValue called for variable '"+name+"'. Returning '"+ val+"'.");
  return val;
}

expertSettingIsOn()

bool VP1QtUtils::expertSettingIsOn ( const QString & type, const QString & name )

static

Definition at line 60 of file VP1QtUtils.cxx.

{
  QString env;
    if(type=="general"){
    QSettings generalSettings("ATLAS", "VP1Light");
    env = generalSettings.value(name).toString();
  } else {
    QSettings expertSettings(QCoreApplication::applicationDirPath()+"/../vp1.ini", QSettings::NativeFormat);
    env = expertSettings.value(name).toString();
  }
  QString val(env.isNull() ? "" : std::move(env) );
  bool ison = true;
  if (val==""||val=="0")
    ison = false;
  else if (0==QString::compare(val,"false",Qt::CaseInsensitive))
    ison = false;
  else if (0==QString::compare(val,"off",Qt::CaseInsensitive))
    ison = false;
  else if (0==QString::compare(val,"no",Qt::CaseInsensitive))
    ison = false;
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::expertSettingIsOn called for variable '"+name+"'. Returning "+ VP1Msg::str(ison)+".");
  return ison;
}

expertSettingIsSet()

bool VP1QtUtils::expertSettingIsSet ( const QString & type, const QString & name )

static

Definition at line 27 of file VP1QtUtils.cxx.

{
  bool set;
  if(type=="general"){
    QSettings generalSettings("ATLAS", "VP1Light");
    set = !generalSettings.value(name).toString().isEmpty();
  } else {
    QSettings expertSettings(QCoreApplication::applicationDirPath()+"/../vp1.ini", QSettings::NativeFormat);
    set = !expertSettings.value(name).toString().isEmpty();
  }
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::expertSettingIsSet called for variable '"+name+"'. Returning "+VP1Msg::str(set));
  return set;
}

expertSettingValue()

QString VP1QtUtils::expertSettingValue ( const QString & type, const QString & name )

static

Definition at line 43 of file VP1QtUtils.cxx.

{
  QString env;
  if(type=="general"){
    QSettings generalSettings("ATLAS", "VP1Light");
    env = generalSettings.value(name).toString();
  } else {
    QSettings expertSettings(QCoreApplication::applicationDirPath()+"/../vp1.ini", QSettings::NativeFormat);
    env = expertSettings.value(name).toString();
  }
  QString val(env.isNull() ? "" : std::move(env));
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::expertSettingValue called for variable '"+name+"'. Returning '"+ val+"'.");
  return val;
}

fadeImage()

QImage VP1QtUtils::fadeImage ( QImage img0, QImage img1, double fadefact )

static

Definition at line 176 of file VP1QtUtils.cxx.

                                                                       {
  if (fadefact<0.0||fadefact>1.0||img0.isNull()||img1.isNull()||img0.width()!=img1.width()||img0.height()!=img1.height())
    return QImage();
  if (fadefact==0)
    return img0;
  if (fadefact==1)
    return img1;
  QImage img = img0;
  double oneminusfadefact(1.0-fadefact);
  const int w(img.width()), h(img.height());
  for (int iw = 0; iw<w; ++iw)
    for (int ih = 0; ih<h; ++ih) {
      QColor col0(img0.pixel(iw,ih));
      QColor col1(img1.pixel(iw,ih));
      img.setPixel ( iw,ih,QColor::fromRgbF(col0.redF()*oneminusfadefact + col1.redF()*fadefact,
                        col0.greenF()*oneminusfadefact + col1.greenF()*fadefact,
                        col0.blueF()*oneminusfadefact + col1.blueF()*fadefact).rgb() );
    }
  return img;
}

setEnvironmentVariable()

void VP1QtUtils::setEnvironmentVariable ( const QString & name, const QString & content )

static

Definition at line 146 of file VP1QtUtils.cxx.

{
  if (name.isEmpty()) {
    VP1Msg::messageDebug("VP1QtUtils::setEnvironmentVariable WARNING: called with empty variable name!");
    return;
  }
 
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::setEnvironmentVariable: Setting variable '"+name+"' to value '"+content+"'.");
 
  //Don't see any Qt function for this, so we go directly to the stdlib call:
  ::setenv(name.toStdString().c_str(),content.toStdString().c_str(),1/*override present value*/);
}

setExpertSetting()

void VP1QtUtils::setExpertSetting ( const QString & type, const QString & name, const QString & content )

static

Definition at line 86 of file VP1QtUtils.cxx.

{
  if (name.isEmpty()) {
    VP1Msg::messageDebug("VP1QtUtils::setEnvironmentVariable WARNING: called with empty variable name!");
    return;
  }
 
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::setEnvironmentVariable: Setting variable '"+name+"' to value '"+content+"'.");
 
  if(type=="general"){
    QSettings generalSettings("ATLAS", "VP1Light");
    generalSettings.setValue(name, content);
  } else {
    QSettings expertSettings(QCoreApplication::applicationDirPath()+"/../vp1.ini", QSettings::NativeFormat);
    expertSettings.setValue(name, content);
  }
}

unsetEnvironmentVariable()

void VP1QtUtils::unsetEnvironmentVariable ( const QString & name )

static

Definition at line 161 of file VP1QtUtils.cxx.

{
  if (name.isEmpty()) {
    VP1Msg::messageDebug("VP1QtUtils::unsetEnvironmentVariable WARNING: called with empty variable name!");
    return;
  }
  //Don't see any Qt function for this, so we go directly to the stdlib call:
 
  if (VP1Msg::verbose())
    VP1Msg::messageVerbose("VP1QtUtils::unsetEnvironmentVariable: Unsetting variable '"+name+"'.");
 
  ::unsetenv(name.toStdString().c_str());
}

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The documentation for this class was generated from the following files:

• VP1QtUtils.h
• VP1QtUtils.cxx