/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
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 *   ownership. The ASF licenses this file to you under the Apache
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 */

#ifndef INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX
#define INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX

#include "menuwindow.hxx"

#include <vcl/floatwin.hxx>
#include <vcl/menu.hxx>

#define EXTRASPACEY         2
#define GUTTERBORDER        8

/** Class that implements the actual window of the floating menu.
*/
class MenuFloatingWindow : public FloatingWindow, public MenuWindow
{
    friend void Menu::ImplFillLayoutData() const;
    friend Menu::~Menu();

private:
    Menu* pMenu;
    PopupMenu* pActivePopup;
    Timer aHighlightChangedTimer;
    Timer aSubmenuCloseTimer;
    Timer aScrollTimer;
    sal_uLong nSaveFocusId;
    sal_uInt16 nHighlightedItem; // highlighted/selected Item
    sal_uInt16 nMBDownPos;
    sal_uInt16 nScrollerHeight;
    sal_uInt16 nFirstEntry;
    sal_uInt16 nBorder;
    sal_uInt16 nPosInParent;

    bool bInExecute : 1;

    bool bScrollMenu : 1;
    bool bScrollUp : 1;
    bool bScrollDown : 1;
    bool bIgnoreFirstMove : 1;
    bool bKeyInput : 1;

    DECL_LINK_TYPED( PopupEnd, FloatingWindow*, void );
    DECL_LINK_TYPED( HighlightChanged, Timer*, void );
    DECL_LINK_TYPED( SubmenuClose, Timer *, void );
    DECL_LINK_TYPED( AutoScroll, Timer *, void );
    DECL_LINK_TYPED( ShowHideListener, VclWindowEvent&, void );

    virtual void StateChanged( StateChangedType nType ) SAL_OVERRIDE;
    virtual void DataChanged( const DataChangedEvent& rDCEvt ) SAL_OVERRIDE;

    void InitMenuClipRegion(vcl::RenderContext& rRenderContext);

protected:
    vcl::Region ImplCalcClipRegion( bool bIncludeLogo = true ) const;
    void ImplDrawScroller(vcl::RenderContext& rRenderContext, bool bUp);
    using Window::ImplScroll;
    void ImplScroll( const Point& rMousePos );
    void ImplScroll( bool bUp );
    void ImplCursorUpDown( bool bUp, bool bHomeEnd = false );
    void ImplHighlightItem( const MouseEvent& rMEvt, bool bMBDown );
    long ImplGetStartY() const;
    Rectangle ImplGetItemRect( sal_uInt16 nPos );
    void RenderHighlightItem( vcl::RenderContext& rRenderContext, sal_uInt16 nPos, bool bHighlight );
    long GetInitialItemY( long *pOptStartY = NULL ) const;
    void InvalidateItem( sal_uInt16 nPos );

public:
    MenuFloatingWindow(Menu* pMenu, vcl::Window* pParent, WinBits nStyle);
    virtual ~MenuFloatingWindow();

    virtual void dispose() SAL_OVERRIDE;
    void doShutdown();

    virtual void MouseMove(const MouseEvent& rMEvt) SAL_OVERRIDE;
    virtual void MouseButtonDown(const MouseEvent& rMEvt) SAL_OVERRIDE;
    virtual void MouseButtonUp(const MouseEvent& rMEvt) SAL_OVERRIDE;
    virtual void KeyInput(const KeyEvent& rKEvent) SAL_OVERRIDE;
    virtual void Command(const CommandEvent& rCEvt) SAL_OVERRIDE;
    virtual void Paint(vcl::RenderContext& rRenderContext, const Rectangle& rRect) SAL_OVERRIDE;
    virtual void RequestHelp( const HelpEvent& rHEvt ) SAL_OVERRIDE;
    virtual void Resize() SAL_OVERRIDE;

    virtual void ApplySettings(vcl::RenderContext& rRenderContext) SAL_OVERRIDE;

    void SetFocusId( sal_uLong nId ) { nSaveFocusId = nId; }
    sal_uLong GetFocusId() const      { return nSaveFocusId; }

    void EnableScrollMenu( bool b );
    bool IsScrollMenu() const        { return bScrollMenu; }
    sal_uInt16 GetScrollerHeight() const   { return nScrollerHeight; }

    void Execute();
    void StopExecute( sal_uLong nFocusId = 0 );
    void EndExecute();
    void EndExecute( sal_uInt16 nSelectId );

    PopupMenu* GetActivePopup() const  { return pActivePopup; }
    void KillActivePopup( PopupMenu* pThisOnly = NULL );

    void ChangeHighlightItem(sal_uInt16 n, bool bStartPopupTimer);
    sal_uInt16 GetHighlightedItem() const { return nHighlightedItem; }

    void SetPosInParent( sal_uInt16 nPos ) { nPosInParent = nPos; }

    virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() SAL_OVERRIDE;
};

#endif // INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX
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