162 lines
4.5 KiB
C++
162 lines
4.5 KiB
C++
/*
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef PLASMA_APPLETSCRIPT_H
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#define PLASMA_APPLETSCRIPT_H
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#include <QtCore/QObject>
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#include <QtCore/QRect>
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#include <QtCore/QSizeF>
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#include <KDE/KGenericFactory>
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#include <plasma/plasma_export.h>
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#include <plasma/scripting/scriptengine.h>
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class QAction;
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class QPainter;
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class QStyleOptionGraphicsItem;
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namespace Plasma
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{
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class AppletScriptPrivate;
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/**
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* @class AppletScript plasma/scripting/appletscript.h <Plasma/Scripting/AppletScript>
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*
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* @short Provides a restricted interface for scripted applets.
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*/
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class PLASMA_EXPORT AppletScript : public ScriptEngine
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{
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Q_OBJECT
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public:
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/**
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* Default constructor for an AppletScript.
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*
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* Subclasses should not attempt to access the Plasma::Applet
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* associated with this AppletScript in the constructor. All
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* such set up that requires the Applet itself should be done
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* in the init() method.
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*/
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explicit AppletScript(QObject *parent = 0);
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~AppletScript();
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/**
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* Sets the applet associated with this AppletScript
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*/
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void setApplet(Plasma::Applet *applet);
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/**
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* Returns the Plasma::Applet associated with this script component
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*/
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Plasma::Applet *applet() const;
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/**
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* Called when the script should paint the applet
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*
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* @param painter the QPainter to use
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* @param option the style option containing such flags as selection, level of detail, etc
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*/
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virtual void paintInterface(QPainter *painter,
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const QStyleOptionGraphicsItem *option,
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const QRect &contentsRect);
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/**
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* Returns the area within which contents can be painted.
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**/
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Q_INVOKABLE QSizeF size() const;
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/**
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* Called when any of the geometry constraints have been updated.
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*
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* This is always called prior to painting and should be used as an
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* opportunity to layout the widget, calculate sizings, etc.
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*
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* Do not call update() from this method; an update() will be triggered
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* at the appropriate time for the applet.
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*
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* @param constraints the type of constraints that were updated
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*/
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virtual void constraintsEvent(Plasma::Constraints constraints);
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/**
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* Returns a list of context-related QAction instances.
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*
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* @return A list of actions. The default implementation returns an
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* empty list.
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*/
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virtual QList<QAction*> contextualActions();
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/**
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* Returns the shape of the widget, defaults to the bounding rect
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*/
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virtual QPainterPath shape() const;
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/**
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* Sets whether or not this script has a configuration interface or not
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*
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* @arg hasInterface true if the applet is user configurable
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*/
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void setHasConfigurationInterface(bool hasInterface);
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public Q_SLOTS:
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/**
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* Show a configuration dialog.
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*/
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virtual void showConfigurationInterface();
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/**
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* Configure was changed.
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*/
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virtual void configChanged();
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protected:
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/**
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* @arg engine name of the engine
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* @return a data engine associated with this plasmoid
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*/
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Q_INVOKABLE DataEngine *dataEngine(const QString &engine) const;
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/**
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* @return absolute path to the main script file for this plasmoid
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*/
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QString mainScript() const;
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/**
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* @return the Package associated with this plasmoid which can
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* be used to request resources, such as images and
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* interface files.
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*/
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const Package *package() const;
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private:
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AppletScriptPrivate *const d;
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};
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#define K_EXPORT_PLASMA_APPLETSCRIPTENGINE(libname, classname) \
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K_PLUGIN_FACTORY(factory, registerPlugin<classname>();) \
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K_EXPORT_PLUGIN(factory("plasma_appletscriptengine_" #libname))
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} //Plasma namespace
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#endif
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