/***************************************************************************
         Copyright (c) Microsoft Corporation, All rights reserved.             
    This code sample is provided "AS IS" without warranty of any kind, 
    it is not recommended for use in a production environment.
***************************************************************************/

#ifndef codewinmgr_h
#define codewinmgr_h

class LanguageService;
class Preferences;

/*---------------------------------------------------------
  CodeWindowManager
---------------------------------------------------------*/
class CodeWindowManager : 
	public IVsCodeWindowManager, 
	public IVsDropdownBarClient
{
private:
  ULONG             m_refCount;
  IVsCodeWindow*    m_codeWindow;
  LanguageService*  m_lservice;
  Preferences*      m_preferences;
  ObjectList        m_viewFilters;
  IVsDropdownBar*   m_dropdownBar;
  IVsObjectList*    m_objectBrowserList;

	// We cache the entries in the dropdown bar, because the caller of
	// GetEntryText() doesn't free the WCHAR* [out] parameter that we
	// return to it, so we have to remember these strings and free them later.
  WCHAR**           m_dropdownBarCache;  // size_is(m_dropdownBarEntries)
  ULONG             m_dropdownBarEntries;

public:
  CodeWindowManager( in LanguageService* lservice, in Preferences* preferences, 
                     in IVsCodeWindow* codeWindow );
  ~CodeWindowManager();
	
	STDMETHODIMP UpdateDropdowns( in IBabelProject *project, in VSITEMID itemid );

  //IUnknown
  STDMETHODIMP QueryInterface( in REFIID iid, out void** obj );
  STDMETHODIMP_(ULONG) AddRef();
  STDMETHODIMP_(ULONG) Release();

  //IVsCodeWindowManager
  STDMETHODIMP AddAdornments();
  STDMETHODIMP RemoveAdornments();
  STDMETHODIMP OnNewView( in IVsTextView* textView );

	//IVsDropdownBarClient
	STDMETHODIMP SetDropdownBar( 
            /* [in] */ IVsDropdownBar *pDropdownBar);
        
	STDMETHODIMP GetComboAttributes( 
            /* [in] */ long iCombo,
            /* [out] */ ULONG *pcEntries,
            /* [out] */ ULONG *puEntryType,
            /* [out] */ HANDLE *phImageList);
        
	STDMETHODIMP GetEntryText( 
            /* [in] */ long iCombo,
            /* [in] */ long iIndex,
            /* [out] */ WCHAR **ppszText);
        
	STDMETHODIMP GetEntryAttributes( 
            /* [in] */ long iCombo,
            /* [in] */ long iIndex,
            /* [out] */ ULONG *pAttr);
        
	STDMETHODIMP GetEntryImage( 
            /* [in] */ long iCombo,
            /* [in] */ long iIndex,
            /* [out] */ long *piImageIndex);
        
	STDMETHODIMP OnItemSelected( 
            /* [in] */ long iCombo,
            /* [in] */ long iIndex);
        
	STDMETHODIMP OnItemChosen( 
            /* [in] */ long iCombo,
            /* [in] */ long iIndex);
        
	STDMETHODIMP OnComboGetFocus( 
            /* [in] */ long iCombo);
        
	STDMETHODIMP GetComboTipText( 
            /* [in] */ long iCombo,
            /* [out] */ BSTR *pbstrText);

	// Used by ViewFilter
	STDMETHODIMP CodeWindowManager::JumpToSpan( in long sline, in long scol,
																						  in long eline, in long ecol );

protected:
	STDMETHODIMP_(void) FlushDropdownBarCache();
};

#endif