/*
  Generic String Replacement Filter Configuration class.
  -------------------
  Copyright:
  (C) 2005 by Gary Cramblitt <garycramblitt@comcast.net>
  -------------------
  Original author: Gary Cramblitt <garycramblitt@comcast.net>

  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 ******************************************************************************/

#ifndef _STRINGREPLACERCONF_H_
#define _STRINGREPLACERCONF_H_

// TQt includes.
#include <tqwidget.h>

// KDE includes.
#include <tdeconfig.h>
#include <kdebug.h>

// KTTS includes.
#include "filterconf.h"

// StringReplacer includes.
#include "stringreplacerconfwidget.h"

class KDialogBase;
class EditReplacementWidget;

class StringReplacerConf : public KttsFilterConf
{
    TQ_OBJECT
  

    public:
        /**
        * Constructor 
        */
        StringReplacerConf( TQWidget *parent, const char *name, const TQStringList &args = TQStringList() );

        /**
        * Destructor 
        */
        virtual ~StringReplacerConf();

        enum SubstitutionType {
            stWord,                 // Word
            stRegExp                // Regular Expression
        };

        /**
        * This method is invoked whenever the module should read its 
        * configuration (most of the times from a config file) and update the 
        * user interface. This happens when the user clicks the "Reset" button in 
        * the control center, to undo all of his changes and restore the currently 
        * valid settings.  Note that KTTSMGR calls this when the plugin is
        * loaded, so it not necessary to call it in your constructor.
        * The plugin should read its configuration from the specified group
        * in the specified config file.
        * @param config      Pointer to a TDEConfig object.
        * @param configGroup Call config->setGroup with this argument before
        *                    loading your configuration.
        *
        * When a plugin is first added to KTTSMGR, @e load will be called with
        * a Null @e configGroup.  In this case, the plugin will not have
        * any instance-specific parameters to load, but it may still wish
        * to load parameters that apply to all instances of the plugin.
        */
        virtual void load(TDEConfig *config, const TQString &configGroup);

        /**
        * This function gets called when the user wants to save the settings in 
        * the user interface, updating the config files or wherever the 
        * configuration is stored. The method is called when the user clicks "Apply" 
        * or "Ok". The plugin should save its configuration in the specified
        * group of the specified config file.
        * @param config      Pointer to a TDEConfig object.
        * @param configGroup Call config->setGroup with this argument before
        *                    saving your configuration.
        */
        virtual void save(TDEConfig *config, const TQString &configGroup);

        /** 
        * This function is called to set the settings in the module to sensible
        * default values. It gets called when hitting the "Default" button. The 
        * default values should probably be the same as the ones the application 
        * uses when started without a config file.  Note that defaults should
        * be applied to the on-screen widgets; not to the config file.
        */
        virtual void defaults();

        /**
         * Indicates whether the plugin supports multiple instances.  Return
         * False if only one instance of the plugin can be configured.
         * @return            True if multiple instances are possible.
         */
        virtual bool supportsMultiInstance();

        /**
         * Returns the name of the plugin.  Displayed in Filters tab of KTTSMgr.
         * If there can be more than one instance of a filter, it should return
         * a unique name for each instance.  The name should be translated for
         * the user if possible.  If the plugin is not correctly configured,
         * return an empty string.
         * @return          Filter instance name.
         */
        virtual TQString userPlugInName();

    private slots:
        void slotLanguageBrowseButton_clicked();
        void slotAddButton_clicked();
        void slotUpButton_clicked();
        void slotDownButton_clicked();
        void slotEditButton_clicked();
        void slotRemoveButton_clicked();
        void slotMatchLineEdit_textChanged(const TQString& text);
        void slotTypeButtonGroup_clicked();
        void slotMatchButton_clicked();
        void slotLoadButton_clicked();
        void slotSaveButton_clicked();
        void slotClearButton_clicked();

        // EnablesDisables buttons depending upon current item in list view.
        void enableDisableButtons();

    private:
        // Displays the add/edit string replacement dialog.
        void addOrEditSubstitution(bool isAdd);
        // Loads word list and settings from a file.  Clearing configuration if clear is True.
        TQString loadFromFile( const TQString& filename, bool clear);
        // Saves word list and settings to a file.
        TQString saveToFile( const TQString& filename );


        // Configuration Widget.
        StringReplacerConfWidget* m_widget;
        // Edit Dialog and widget.
        KDialogBase* m_editDlg;
        EditReplacementWidget* m_editWidget;
        // True if tdeutils Regular Expression Editor is installed.
        bool m_reEditorInstalled;
        // Language Codes.
        TQStringList m_languageCodeList;
};

#endif  //_STRINGREPLACERCONF_H_
