/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#ifndef _CONTROLHELPER_HXX_
#define _CONTROLHELPER_HXX_

#include <rtl/ustring.hxx>
#include <com/sun/star/uno/Any.hxx>

#include <list>
#include <map>

#include <premac.h>
#include <Cocoa/Cocoa.h>
#include <postmac.h>
#include "SalAquaConstants.h"
#include "FilterHelper.hxx"
#include "AquaFilePickerDelegate.hxx"

using namespace com::sun::star;
using namespace rtl;

class ControlHelper {

public:

    //------------------------------------------------------------------------------------
    // Constructor / Destructor
    //------------------------------------------------------------------------------------
    ControlHelper();
    virtual ~ControlHelper();

    //------------------------------------------------
    // XInitialization delegate
    //------------------------------------------------
    void       initialize( sal_Int16 templateId );

    //------------------------------------------------------------------------------------
    // XFilePickerControlAccess function delegates
    //------------------------------------------------------------------------------------
    void       setValue( sal_Int16 nControlId, sal_Int16 nControlAction, const uno::Any& rValue );
    uno::Any   getValue( sal_Int16 nControlId, sal_Int16 nControlAction ) const;
    void       enableControl( sal_Int16 nControlId, sal_Bool bEnable ) const;
    OUString   getLabel( sal_Int16 nControlId );
    void       setLabel( sal_Int16 nControlId, NSString* aLabel );

    //------------------------------------------------------------------------------------
    // other stuff
    //------------------------------------------------------------------------------------
    void       updateFilterUI();

    //------------------------------------------------------------------------------------
    // Type definitions
    //------------------------------------------------------------------------------------
    enum ToggleType {
        AUTOEXTENSION, //but autoextension is handled differently on MacOSX
        PASSWORD,
        FILTEROPTIONS,
        READONLY,
        LINK,
        PREVIEW,
        SELECTION,
        TOGGLE_LAST
    };

    enum ListType {
        VERSION,
        TEMPLATE,
        IMAGE_TEMPLATE,
        LIST_LAST
    };

    //------------------------------------------------------------------------------------
    // inline functions
    //------------------------------------------------------------------------------------
    inline NSView* getUserPane() {
        if (m_bIsUserPaneLaidOut == false) {
            createUserPane();
        }
        return m_pUserPane;
    }

    inline bool    getVisibility(ToggleType tToggle) {
        return m_bToggleVisibility[tToggle];
    }

    inline void    setFilterControlNeeded(bool bNeeded) {
        m_bIsFilterControlNeeded = bNeeded;
        if (bNeeded == true) {
            m_bUserPaneNeeded = true;
        }
    }
    
    inline void    setFilterHelper(FilterHelper* pFilterHelper) {
        m_pFilterHelper = pFilterHelper;
    }

    inline void    setFilePickerDelegate(AquaFilePickerDelegate* pDelegate) {
        m_pDelegate = pDelegate;
    }
    
    inline bool    isAutoExtensionEnabled() {
        return ([((NSButton*) m_pToggles[AUTOEXTENSION]) state] == NSOnState);
    }

private:
    //------------------------------------------------------------------------------------
    // private member variables
    //------------------------------------------------------------------------------------
    
    /** the native view object */
    NSView*    m_pUserPane;

    /** the checkbox controls */
    NSControl* m_pToggles[ TOGGLE_LAST ];
    
    /** the visibility flags for the checkboxes */
    bool m_bToggleVisibility[TOGGLE_LAST];

    /** the special filter control */
    NSPopUpButton *m_pFilterControl;

    /** the popup menu controls (except for the filter control) */
    NSControl* m_pListControls[ LIST_LAST ];
    
    /** a map to store a control's label text */
    ::std::map<NSControl *, NSString *> m_aMapListLabels;
    
    /** a map to store a popup menu's label text field */
    ::std::map<NSPopUpButton *, NSTextField *> m_aMapListLabelFields;
    
    /** the visibility flags for the popup menus */
    bool m_bListVisibility[ LIST_LAST ];

    /** indicates if a user pane is needed */
    bool m_bUserPaneNeeded;

    /** indicates if the user pane was laid out already */
    bool m_bIsUserPaneLaidOut;
    
    /** indicates if a filter control is needed */
    bool m_bIsFilterControlNeeded;
    
    /** a list with all actively used controls */
    ::std::list<NSControl*> m_aActiveControls;
    
    /** the filter helper */
    FilterHelper *m_pFilterHelper;
    
    /** the save or open panel's delegate */
    AquaFilePickerDelegate *m_pDelegate;

    //------------------------------------------------------------------------------------
    // private methods
    //------------------------------------------------------------------------------------
    void HandleSetListValue(const NSControl* pControl, const sal_Int16 nControlAction, const uno::Any& rValue);
    uno::Any HandleGetListValue(const NSControl* pControl, const sal_Int16 nControlAction) const;

    void         createControls();
    void         createFilterControl();
    void         createUserPane();
    NSTextField* createLabelWithString( NSString* label);
    
    int          getControlElementName(const Class clazz, const int nControlId) const;
    NSControl*   getControl( const sal_Int16 nControlId ) const;
    static int   getVerticalDistance(const NSControl* first, const NSControl* second);

    void         layoutControls();
};

#endif //_CONTROLHELPER_HXX_