bcfcontrolctl.h

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//=--------------------------------------------------------------------------=
// BCFControlCtl.H
//=--------------------------------------------------------------------------=
// Copyright  1995  Microsoft Corporation.  All Rights Reserved.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF 
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A 
// PARTICULAR PURPOSE.
//=--------------------------------------------------------------------------=
//
// class declaration for the BCFControl control.
//
#ifndef _BCFCONTROLCONTROL_H_

#include "IPServer.H"
#include "CtrlObj.H"
#include "BCFControlInterfaces.H"
#include "Dispids.H"
#include "internet.h"
#include "IPerPropertyBrowsing.h"
#include "IDataObject.h"
#include "IEnumFORMATETC.h"
#include "IDropSource.h"
#include "IDropTarget.h"

#include "alignmentenums.h"

typedef enum 
{
	BCFControlEvent_Change = 0,
} BCFCONTROLEVENTS;

VARTYPE rgPI4PBSTR [];
EVENTINFO m_rgBCFControlEvents[];

typedef struct tagBCFCONTROLCTLSTATE 
{
	long lCaptionLength;
	long lAlignment;
	OLE_COLOR ocBackColor;
	long lReadyState;
	long lTextDataPathLength;
} BCFCONTROLCTLSTATE;

//=--------------------------------------------------------------------------=
// CBCFControlControl
//=--------------------------------------------------------------------------=
// our control.
//
class CBCFControlControl : public CInternetControl, public IBCFControl, 
	public ISupportErrorInfo, public IPerPropertyBrowsing, public IDataObject, 
	public IEnumFORMATETC, public IDropSource, public IDropTarget 
{
  public:
    // IUnknown methods
    //
    DECLARE_STANDARD_UNKNOWN();

    // IDispatch methods
    //
    DECLARE_STANDARD_DISPATCH();

    // ISupportErrorInfo methods
    //
    DECLARE_STANDARD_SUPPORTERRORINFO();

    // IPerPropertyBrowsing methods
    //
    DECLARE_STANDARD_PERPROPERTYBROWSING();

    // IDataObject methods
    //
    DECLARE_STANDARD_DATAOBJECT();

    // IEnumFORMATETC methods
    //
    DECLARE_STANDARD_ENUMFORMATETC();

    // IDropSource methods
    //
	DECLARE_STANDARD_DROPSOURCE();

    // IDropTarget methods
    //
	DECLARE_STANDARD_IDROPTARGET();

    // IBCFControl methods
    //
    STDMETHOD(get_Alignment)(THIS_ long FAR* lRetValue);
    STDMETHOD(put_Alignment)(THIS_ long lNewValue);
    STDMETHOD(get_BackColor)(THIS_ OLE_COLOR FAR* ocRetValue);
    STDMETHOD(put_BackColor)(THIS_ OLE_COLOR ocNewValue);
    STDMETHOD(get_ReadyState)(THIS_ long FAR* lRetValue);
    STDMETHOD(get_TextDataPath)(THIS_ BSTR FAR* bstrRetVal);
    STDMETHOD(put_TextDataPath)(THIS_ BSTR bstrNewValue);
    STDMETHOD(CaptionMethod)(THIS_ BSTR bstrCaption, VARIANT varAlignment, long FAR* lRetVal);
    STDMETHOD(get_CaptionProp)(THIS_ VARIANT varAlignment, BSTR FAR* bstrRetVal);
    STDMETHOD(put_CaptionProp)(THIS_ VARIANT varAlignment, BSTR lpszNewValue);
    STDMETHOD_(void, AboutBox)(THIS);

    // OLE Control stuff follows:
    //
    CBCFControlControl(IUnknown *pUnkOuter);
    virtual ~CBCFControlControl();

    // static creation function.  all controls must have one of these!
    //
    static IUnknown *Create(IUnknown *);

  private:
    // overridables that the control must implement.
    //
    STDMETHOD(LoadBinaryState)(IStream *pStream);
    STDMETHOD(SaveBinaryState)(IStream *pStream);
    STDMETHOD(LoadTextState)(IPropertyBag *pPropertyBag, IErrorLog *pErrorLog);
    STDMETHOD(SaveTextState)(IPropertyBag *pPropertyBag, BOOL fWriteDefault);
    STDMETHOD(OnDraw)(DWORD dvAspect, HDC hdcDraw, LPCRECTL prcBounds, LPCRECTL prcWBounds, HDC hicTargetDev, BOOL fOptimize);
    virtual LRESULT WindowProc(UINT msg, WPARAM wParam, LPARAM lParam);
    virtual BOOL    RegisterClassData(void);

    virtual HRESULT InternalQueryInterface(REFIID, void **);
    virtual BOOL    BeforeCreateWindow(DWORD *pdwWindowStyle, DWORD *pdwExWindowStyle, LPSTR pszWindowTitle);
    virtual void    BeforeDestroyWindow(void);
    virtual BOOL    AfterCreateWindow(void);

	///	OnData is called asynchronously as data for an object or property arrives...
	virtual HRESULT OnData(DISPID propId, DWORD bscfFlag, IStream * strm, DWORD dwSize);

    // private state information.
    //
    BCFCONTROLCTLSTATE m_state;
    BCFCONTROLCTLSTATE m_DefaultState;

protected:
	void FireChange(void);

	LPTSTR m_lptstrCaption;
	LPTSTR m_lptstrTextDataPath;

    IFont    * m_pFont;
	void LoadFont(void);
	HBRUSH hBrush, hOldBrush;
	COLORREF TranslateColor(OLE_COLOR clrColor, HPALETTE hpal = NULL){COLORREF cr = RGB(0x00,0x00,0x00);OleTranslateColor(clrColor, hpal, &cr);return cr;}
	void FillSolidRect(HDC hDC, LPCRECT lpRect, COLORREF clr){::SetBkColor(hDC, clr);::ExtTextOut(hDC, 0, 0, ETO_OPAQUE, lpRect, NULL, 0, NULL);}
	void GetTextExtent(HDC hDC, LPCTSTR lpctstrString, int & cx, int & cy);
	BOOL bRetrievedDimensions;
	int iCharWidthArray[256];
	int iCharacterSpacing, iCharacterHeight;
	void CopyStgMedium(LPSTGMEDIUM lpTargetStgMedium, LPSTGMEDIUM lpSourceStgMedium, CLIPFORMAT cfSourceFormat);
	void CopyDataToClipboard(void);
	void PrepareDataForTransfer(void);
	void GetDataFromClipboard(void);
	void GetDataFromTransfer(IDataObject * ipDataObj);
	ULONG ulFORMATETCElement;
	void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
	void OnLButtonDown(UINT nFlags, short sHor, short sVer);

private:
	FORMATETC sTextFormatEtc;
	STGMEDIUM sTextStgMedium;
	// custom format storage variables
	UINT m_uiCustomFormat;
	FORMATETC sCustomFormatEtc;
	STGMEDIUM sCustomStgMedium;
};


// TODO: if you have an array of verbs, then add an extern here with the name
//       of it, so that you can include it in the DEFINE_CONTROLOBJECT.
//       ie.  extern VERBINFO m_BCFControlCustomVerbs [];
//
extern const GUID    *rgBCFControlPropPages [];
DEFINE_CONTROLOBJECT(BCFControl,
    &CLSID_BCFControl,
    "BCFControlCtl",
    CBCFControlControl::Create,
    1,
    &IID_IBCFControl,
    "BCFControl.HLP",
    &DIID_DBCFControlEvents,
    OLEMISC_SETCLIENTSITEFIRST|OLEMISC_ACTIVATEWHENVISIBLE|OLEMISC_RECOMPOSEONRESIZE|OLEMISC_CANTLINKINSIDE|OLEMISC_INSIDEOUT,
    0,                              // no IPointerInactive policy by default
    RESID_TOOLBOX_BITMAP1,
    "BCFControlWndClass",
    1,
    rgBCFControlPropPages,
    0,
    NULL);



#define _BCFCONTROLCONTROL_H_
#endif // _BCFCONTROLCONTROL_H_