Script.h

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#ifndef SCRIPT_H
#define SCRIPT_H
 
#include <QVariant>
#include <QString>
#include <QStringList>
#include <QObject>
#include <QStringList>
#include <QEvent>
 
#include "customevents.h"
#include "ScriptingEnv.h"
 
class ApplicationWindow;
 
 
class Script : public QObject
{
  Q_OBJECT
 
  public:
    Script(ScriptingEnv *env, const QString &code, QObject *context=0, const QString &name="<input>")
      : QObject(context), Env(env), Code(code), Name(name), compiled(notCompiled)
      { Env->incref(); Context = context; EmitErrors=true; }
    ~Script() { Env->decref(); }
 
    const QString code() const { return Code; }
    const QObject* context() const { return Context; }
    const QString name() const { return Name; }
    bool emitErrors() const { return EmitErrors; }
    virtual void addCode(const QString &code) { Code.append(code); compiled = notCompiled; emit codeChanged(); }
    virtual void setCode(const QString &code) { Code=code; compiled = notCompiled; emit codeChanged(); }
    virtual void setContext(QObject *context) { Context = context; compiled = notCompiled; }
    void setName(const QString &name) { Name = name; compiled = notCompiled; }
    void setEmitErrors(bool yes) { EmitErrors = yes; }
  
  bool batchMode=false;
  
  public slots:
    virtual bool compile(bool for_eval=true);
    virtual QVariant eval();
    virtual bool exec();
 
    // local variables
    virtual bool setQObject(QObject*, const char*) { return false; }
    virtual bool setInt(int, const char*) { return false; }
    virtual bool setDouble(double, const char*) { return false; }
 
  signals:
    void codeChanged();
    void error(const QString & message, const QString & scriptName, int lineNumber);
    void print(const QString & output);
    
  protected:
    ScriptingEnv *Env;
    QString Code, Name;
    QObject *Context;
    enum compileStatus { notCompiled, isCompiled, compileErr } compiled;
    bool EmitErrors;
 
    void emit_error(const QString & message, int lineNumber)
      { if(EmitErrors) emit error(message, Name, lineNumber); }
};
 
class ScriptingLangManager
{
  public:
  static ScriptingEnv *newEnv(ApplicationWindow *parent);
  static ScriptingEnv *newEnv(const std::string& name, ApplicationWindow *parent, bool batch=false);
    static QStringList languages();
    static int numLanguages();
 
};
 
class ScriptingChangeEvent : public QEvent
{
  public:
    ScriptingChangeEvent(ScriptingEnv *e) : QEvent(SCRIPTING_CHANGE_EVENT), env(e) {}
    ScriptingEnv *scriptingEnv() const { return env; }
    Type type() const { return SCRIPTING_CHANGE_EVENT; }
  private:
    ScriptingEnv *env;
};
 
 
class scripted
{
  public:
   scripted(ScriptingEnv* env);
   ~scripted();
   void scriptingChangeEvent(ScriptingChangeEvent*);
  protected:
    ScriptingEnv *scriptEnv;
};
 
#endif