/***************************************************************************
 *   Copyright (C) 2005 by Lorenzo Bettini                                 *
 *   http://www.lorenzobettini.it                                          *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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 General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef KLCDDIMMER_H
#define KLCDDIMMER_H

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <kpanelapplet.h>
#include <tqstring.h>
#include <tdeconfig.h>

class TDEPopupMenu;
class BrightnessChooserImpl;
class TDEPopupFrame;
class KlcdDimmerApplet;

class klcddimmer : public KPanelApplet
{
    TQ_OBJECT

public:
    /**
     * Construct a @ref KPanelApplet just like any other widget.
     *
     * @param configFile The configFile handed over in the factory function.
     * @param Type The applet @ref type().
     * @param actions Standard RMB menu actions supported by the applet (see @ref action() ).
     * @param parent The pointer to the parent widget handed over in the factory function.
     * @param name A TQt object name for your applet.
     **/
    klcddimmer(const TQString& configFile, Type t = Normal, int actions = 0,
        TQWidget *parent = 0, const char *name = 0);
    /** destructor */
    ~klcddimmer();

    /**
     * Retrieve a suggested width for a given height.
     *
     * Every applet should reimplement this function.
     *
     * Depending on the panel orientation the height (horizontal panel) or the
     * width (vertical panel) of the applets is fixed.
     * The exact values of the fixed size component depend on the panel size.
     *
     * On a horizontal panel the applet height is fixed, the panel will
     * call @ref widthForHeight(int height) with @p height
     * equal to 'the fixed applet height'
     * when laying out the applets.
     *
     * The applet can now choose the other size component (width)
     * based on the given height.
     *
     * The width you return is granted.
     **/
    virtual int widthForHeight(int height) const;
    /**
     * @return A suggested height for a given width.
     *
     * Every applet should reimplement this function.
     *
     * Depending on the panel orientation the height (horizontal panel) or the
     * width (vertical panel) of the applets is fixed.
     * The exact values of the fixed size component depend on the panel size.
     *
     * On a vertical panel the applet width is fixed, the panel will
     * call @ref heightForWidth(int width) with @p width
     * equal to 'the fixed applet width'
     * when laying out the applets.
     *
     * The applet can now choose the other size component (height)
     * based on the given width.
     *
     * The height you return is granted.
     **/
    virtual int heightForWidth(int width) const;
    /**
     * Is called when the user selects "About" from the applets RMB menu.
     * Reimplement this function to launch a about dialog.
     *
     * Note that this is called only when your applet supports the About action.
     * See @ref Action and @ref KPanelApplet().
     **/

  public slots:
    virtual void about();
    /**
     * Is called when the user selects "Help" from the applets RMB menu.
     * Reimplement this function to launch a manual or help page.
     *
     * Note that this is called only when your applet supports the Help action.
     * See @ref Action and @ref KPanelApplet().
     **/
    virtual void help();
    /**
     * Is called when the user selects "Preferences" from the applets RMB menu.
     * Reimplement this function to launch a preferences dialog or kcontrol module.
     *
     * Note that this is called only when your applet supports the preferences action.
     * See @ref Action and @ref KPanelApplet().
     **/
    virtual void preferences();
    /**
     * It is called when the brightness value has been updated.
     */
    virtual void valueUpdate();

protected:
    void resizeEvent(TQResizeEvent *);
    void mousePressEvent(TQMouseEvent *e);

private:
    TDEConfig *ksConfig;
    TQWidget *mainView;
    TDEPopupMenu *mContextMenu;
    TDEPopupFrame *mBrightnessChooserFrame;
    BrightnessChooserImpl *chooser;
    KlcdDimmerApplet *klcddimmerView;

private: // Private methods
  /**
   * Initializes the context menu
   */
  void initContextMenu();
};

#endif
