GLASSCTL.H

// GlassControl.h : Declaration of the CGlassControl 
 
#ifndef __GLASSCONTROL_H_ 
#define __GLASSCONTROL_H_ 
 
#include "resource.h"       // main symbols 
#include "CPGlass.h" 
#include <mshtml.h>         // for ICSSFilter 
#include <ocmm.h> 
#include <DDraw.H> 
#include <DDrawEx.H> 
 
typedef struct tagGLASSSTATE 
{ 
 
    int         iWidth; 
    int         Brightness; 
    DWORD       DynamicFade;    // 0 = no fade, otherwise, value = interval 
    int         FadeInterval;   // the change in brightness 
    unsigned    fFreeze:1;          
    unsigned    fEnabled:1;     // CSSFilter state 
    unsigned    fInvalid:1;     // get drawn the first time around 
} GLASSSTATE; 
 
#define LEFT_BUTTON     0x01 
#define RIGHT_BUTTON    0x02 
#define MIDDLE_BUTTON   0x04 
 
#define CHECK_POINTER(val) \ 
    if (!(val) || IsBadWritePtr((void *)(val), sizeof(void *))) return E_POINTER 
 
///////////////////////////////////////////////////////////////////////////// 
// CGlassControl 
class ATL_NO_VTABLE CGlassControl :  
public CComObjectRootEx<CComSingleThreadModel>, 
public CComCoClass<CGlassControl, &CLSID_GlassControl>, 
public CComControl<CGlassControl>, 
public IDispatchImpl<IGlassControl, &IID_IGlassControl, &LIBID_GLASSLib>, 
public IProvideClassInfo2Impl<&CLSID_GlassControl, &DIID__GlassEvents, &LIBID_GLASSLib>, 
public IPersistStreamInitImpl<CGlassControl>, 
public IPersistStorageImpl<CGlassControl>, 
public IPersistPropertyBagImpl<CGlassControl>, 
public IQuickActivateImpl<CGlassControl>, 
public IOleControlImpl<CGlassControl>, 
public IOleObjectImpl<CGlassControl>, 
public IOleInPlaceActiveObjectImpl<CGlassControl>, 
public IViewObjectExImpl<CGlassControl>, 
public IOleInPlaceObjectWindowlessImpl<CGlassControl>, 
public IDataObjectImpl<CGlassControl>, 
public ISpecifyPropertyPagesImpl<CGlassControl>, 
    public CProxy_GlassEvents<CGlassControl>, 
    public IConnectionPointContainerImpl<CGlassControl>, 
    public IObjectSafetyImpl<CGlassControl>, 
public IViewFilter, 
public IViewFilterSite, 
public ICSSFilter 
{ 
public: 
    friend class CGlassControlSink; 
 
    CGlassControl(); 
    ~CGlassControl(); 
 
DECLARE_REGISTRY_RESOURCEID(IDR_GLASSCONTROL) 
 
BEGIN_COM_MAP(CGlassControl) 
COM_INTERFACE_ENTRY(IGlassControl) 
COM_INTERFACE_ENTRY(IDispatch) 
COM_INTERFACE_ENTRY_IMPL(IViewObjectEx) 
COM_INTERFACE_ENTRY_IMPL_IID(IID_IViewObject2, IViewObjectEx) 
COM_INTERFACE_ENTRY_IMPL_IID(IID_IViewObject, IViewObjectEx) 
COM_INTERFACE_ENTRY_IMPL(IOleInPlaceObjectWindowless) 
COM_INTERFACE_ENTRY_IMPL_IID(IID_IOleInPlaceObject, IOleInPlaceObjectWindowless) 
COM_INTERFACE_ENTRY_IMPL_IID(IID_IOleWindow, IOleInPlaceObjectWindowless) 
COM_INTERFACE_ENTRY_IMPL(IOleInPlaceActiveObject) 
COM_INTERFACE_ENTRY_IMPL(IOleControl) 
COM_INTERFACE_ENTRY_IMPL(IOleObject) 
COM_INTERFACE_ENTRY_IMPL(IQuickActivate) 
COM_INTERFACE_ENTRY_IMPL(IPersistStorage) 
COM_INTERFACE_ENTRY_IMPL(IPersistStreamInit) 
COM_INTERFACE_ENTRY_IMPL(IPersistPropertyBag) 
COM_INTERFACE_ENTRY_IMPL(ISpecifyPropertyPages) 
COM_INTERFACE_ENTRY_IMPL(IDataObject) 
COM_INTERFACE_ENTRY(IProvideClassInfo) 
COM_INTERFACE_ENTRY(IProvideClassInfo2) 
COM_INTERFACE_ENTRY_IMPL(IConnectionPointContainer) 
COM_INTERFACE_ENTRY_IMPL(IObjectSafety) 
COM_INTERFACE_ENTRY(IViewFilter) 
COM_INTERFACE_ENTRY(IViewFilterSite) 
COM_INTERFACE_ENTRY(ICSSFilter) 
END_COM_MAP() 
 
BEGIN_CONNECTION_POINT_MAP(CGlassControl) 
CONNECTION_POINT_ENTRY(DIID__GlassEvents) 
END_CONNECTION_POINT_MAP() 
 
BEGIN_PROPERTY_MAP(CGlassControl) 
// Example entries 
// PROP_ENTRY("Property Description", dispid, clsid) 
PROP_PAGE(CLSID_StockColorPage) 
END_PROPERTY_MAP() 
 
 
BEGIN_MSG_MAP(CGlassControl) 
MESSAGE_HANDLER(WM_PAINT, OnPaint) 
MESSAGE_HANDLER(WM_SETFOCUS, OnSetFocus) 
MESSAGE_HANDLER(WM_KILLFOCUS, OnKillFocus) 
    MESSAGE_RANGE_HANDLER(WM_MOUSEMOVE, WM_MBUTTONUP, OnMouse) 
END_MSG_MAP() 
 
 
// IViewObjectEx 
#define VIEWSTATUS_SURFACE 16 
STDMETHOD(GetViewStatus)(DWORD* pdwStatus) 
{ 
ATLTRACE(_T("IViewObjectExImpl::GetViewStatus\n")); 
*pdwStatus = VIEWSTATUS_DVASPECTTRANSPARENT | VIEWSTATUS_SURFACE; 
return S_OK; 
} 
 
// IGlassControl 
public: 
HRESULT OnDraw(ATL_DRAWINFO& di); 
 
    // IViewObjectEX overrides 
    STDMETHOD(QueryHitPoint)(DWORD dwAspect, LPCRECT pRectBounds, POINT ptlLoc, LONG lCloseHint, DWORD *pHitResult); 
         
    // Event handling methods 
    LRESULT OnMouse(UINT msg, WPARAM wParam, LPARAM lParam, BOOL& bHandled); 
 
    // IGlass properties 
    // 
    STDMETHOD(get_LineWidth)(long FAR* plWidth); 
    STDMETHOD(put_LineWidth)(long lWidth); 
    STDMETHOD(get_Brightness)(long FAR* plBrightness); 
    STDMETHOD(put_Brightness)(long lBrightness); 
    STDMETHOD(get_DynamicFade)(long FAR* plDynamicFade); 
    STDMETHOD(put_DynamicFade)(long lDynamicFade); 
    STDMETHOD(get_FadeInterval)(long FAR* plFadeInterval); 
    STDMETHOD(put_FadeInterval)(long lFadeInterval); 
    STDMETHOD(get_Freeze)(long FAR* plFreeze); 
    STDMETHOD(put_Freeze)(long lFreeze);       
    STDMETHOD(get_Enabled)(long FAR* plEnabled); 
    STDMETHOD(put_Enabled)(long lEnabled);       
 
    STDMETHOD(HandleOnTimer)( DWORD timeAdvise ); 
 
// IViewFilter 
public: 
    STDMETHOD(SetSource)(IViewFilter *pSource); 
    STDMETHOD(GetSource)(IViewFilter **ppSource); 
    STDMETHOD(SetSite)(IViewFilterSite *pSink); 
    STDMETHOD(GetSite)(IViewFilterSite **ppSink); 
    STDMETHOD(SetPosition)(LPCRECT prc); 
    STDMETHOD(Draw)(HDC hdc, LPCRECT prcBounds); 
    STDMETHOD(GetStatusBits)(DWORD *pdwFlags); 
 
// IViewFilterSite 
public: 
    STDMETHOD(GetDC)(LPCRECT prc, DWORD dwFlags, HDC *phdc); 
    STDMETHOD(ReleaseDC)(HDC hdc); 
    STDMETHOD(InvalidateRect)(LPCRECT prc, BOOL fErase); 
    STDMETHOD(InvalidateRgn)(HRGN hrgn, BOOL fErase); 
    STDMETHOD(OnStatusBitsChange)(DWORD dwFlags); 
 
// ICSSFilter methods 
    STDMETHOD(SetSite)(ICSSFilterSite *pSite); 
    STDMETHOD(OnAmbientPropertyChange)(DISPID dispid); 
 
// IPersistPropertyBag methods 
STDMETHOD(Load)(IPropertyBag *pPropBag, IErrorLog *pErrorLog); 
 
// IObjectSafety methods 
    STDMETHOD(GetInterfaceSafetyOptions)(REFIID riid,  
                                         DWORD *pdwSupportedOptions,  
                                         DWORD *pdwEnabledOptions); 
STDMETHOD(SetInterfaceSafetyOptions)(REFIID riid,  
                                         DWORD dwOptionSetMask,  
                                         DWORD dwEnabledOptions); 
 
 
    // private state information. 
    // 
    GLASSSTATE          m_state; 
    IDirectDraw3        *m_pDirectDraw3; 
    ITimer              *m_pTimer; 
    CGlassControlSink   *m_pTimerSink; 
    DWORD               m_TimerCookie; 
    DWORD               m_timeLastAdvise; 
 
    IViewFilter         *m_pSource; 
    IViewFilterSite     *m_pSite; 
    RECT                m_rc; 
    ICSSFilterSite      *m_pCSSSite; 
}; 
 
class CGlassControlSink : public ITimerSink  
{ 
 
    friend class CGlassControl; 
 
  public: 
 
    CGlassControlSink( CGlassControl *pGC ) { m_pGC = pGC; m_cRefs = 0; } 
    ~CGlassControlSink() { if ( m_pGC ) m_pGC->m_pTimerSink = NULL; } 
 
    // IUnknown methods 
    STDMETHODIMP_(ULONG) AddRef(); 
    STDMETHODIMP_(ULONG) Release(); 
    STDMETHODIMP QueryInterface (REFIID iid, void **ppvObj); 
 
    // ITimerSink methods 
    STDMETHOD(OnTimer)(VARIANT timeAdvise); 
 
  protected: 
    ULONG               m_cRefs; 
    CGlassControl      *m_pGC; 
}; 
 
#endif //__GLASSCONTROL_H_