129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/*
|
|
* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Library General Public License version 2 as
|
|
* published by the Free Software Foundation
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef PLASMA_SCRIPTENGINE_H
|
|
#define PLASMA_SCRIPTENGINE_H
|
|
|
|
#include <QtCore/QObject>
|
|
#include <QtCore/QSizeF>
|
|
|
|
class QPainter;
|
|
class QStyleOptionGraphicsItem;
|
|
|
|
namespace Plasma
|
|
{
|
|
|
|
class Applet;
|
|
class Package;
|
|
|
|
/**
|
|
* @brief The base class for scripting interfaces to be used in loading
|
|
* plasmoids of a given language.
|
|
*
|
|
* All ScriptEngines should export as consistent an interface as possible
|
|
* so that the learning curve is limited. In particular, the following
|
|
* API should be made available in the script environment:
|
|
*
|
|
* TODO: define the actual API ...
|
|
* PlasmaApplet - the applet of this plasmoid
|
|
* LoadUserInterface(String uiFile) - loads and returns a given UI file
|
|
* LoadImage - loads an image resource out of the plasmoid's package
|
|
* PlasmaSvg - creates and returns an Svg file
|
|
**/
|
|
class ScriptEngine : public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
/**
|
|
* The default constructor for a ScriptEngine
|
|
*
|
|
* @param applet the Applet object that will house the plasmoid
|
|
**/
|
|
explicit ScriptEngine(QObject *parent, const QStringList &args);
|
|
virtual ~ScriptEngine();
|
|
|
|
void init(Applet* applet);
|
|
|
|
/**
|
|
* @return a list of all supported languages
|
|
**/
|
|
static QStringList knownLanguages();
|
|
|
|
/**
|
|
* Loads a script engine for the given language.
|
|
*
|
|
* @param language the language to load an engine for
|
|
* @param applet the applet for this plasmoid
|
|
* @return pointer to the ScriptEngine or 0 on failure
|
|
**/
|
|
static ScriptEngine* load(const QString &language, Applet *applet);
|
|
|
|
/**
|
|
* Called when the script should paint the applet
|
|
*
|
|
* @param painter the QPainter to use
|
|
* @param option the style option containing such flags as selection, level of detail, etc
|
|
**/
|
|
virtual void paintInterface(QPainter* painter, const QStyleOptionGraphicsItem* option);
|
|
|
|
/**
|
|
* @return the size of the applet
|
|
**/
|
|
virtual QSizeF size();
|
|
|
|
protected:
|
|
/**
|
|
* Called when the script should set up the script environment and
|
|
* start the script itself
|
|
**/
|
|
virtual bool init();
|
|
|
|
/**
|
|
* @return absolute path to the main script file for this plasmoid
|
|
**/
|
|
QString mainScript() const;
|
|
|
|
/**
|
|
* @return the Package associated with this plasmoid which can
|
|
* be used to request resources, such as images and
|
|
* interface files.
|
|
*/
|
|
const Package* package() const;
|
|
|
|
/**
|
|
* @return the Applet that contains this plasmoid
|
|
**/
|
|
Applet* applet() const;
|
|
|
|
private:
|
|
class Private;
|
|
Private * const d;
|
|
};
|
|
|
|
#define K_EXPORT_PLASMA_SCRIPENGINE(libname, classname) \
|
|
K_EXPORT_COMPONENT_FACTORY( \
|
|
plasma_scriptengine_##libname, \
|
|
KGenericFactory<classname>("plasma_scriptengine_" #libname))
|
|
|
|
|
|
} // namespace Plasma
|
|
|
|
#endif
|
|
|