add init function in interpreter api. use it in python interpreter to

read python script defined in settings

src/dtkScript/dtkScriptInterpreter.h

@@ -48,6 +48,7 @@ public:
 
 public slots:
     virtual QString interpret(const QString& command, int *stat) = 0;
+    virtual void init(void) {} ;
 
 private:
     dtkScriptInterpreterPrivate *d;

src/dtkScript/dtkScriptInterpreterPython.cpp

@@ -69,6 +69,7 @@ dtkScriptInterpreterPython::dtkScriptInterpreterPython(QObject *parent) : dtkScr
 
     foreach(QString path, paths.split(":", QString::SkipEmptyParts))
         PyRun_SimpleString(QString("sys.path.append('%1')").arg(path).toUtf8().constData());
+
 }
 
 dtkScriptInterpreterPython::~dtkScriptInterpreterPython(void)
@@ -80,6 +81,20 @@ dtkScriptInterpreterPython::~dtkScriptInterpreterPython(void)
     d = NULL;
 }
 
+void dtkScriptInterpreterPython::init(void)
+{
+    QSettings settings(QSettings::IniFormat, QSettings::UserScope, "inria", "dtk-script");
+    settings.beginGroup("init");
+    QString init = settings.value("script").toString();
+    settings.endGroup();
+
+    if (!init.isEmpty()) {
+        PyRun_SimpleString(QString("execfile('%1')").arg(init).toUtf8().constData());
+    } else {
+        dtkWarn() << "no init function " ;
+    }
+}
+
 QString dtkScriptInterpreterPython::interpret(const QString& command, int *stat)
 {
     QString statement = command;

src/dtkScript/dtkScriptInterpreterPython.h

@@ -28,6 +28,7 @@ public:
 
 public slots:
     DTKSCRIPT_EXPORT QString interpret(const QString& command, int *stat);
+    DTKSCRIPT_EXPORT void init(void);
 
 private:
     dtkScriptInterpreterPythonPrivate *d;