windows-nt/Source/XPSP1/NT/shell/ext/taskui/test/litecontrol.h

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2020-09-26 03:20:57 -05:00
// LiteControl.h : Declaration of the CLiteControl
#ifndef __LITECONTROL_H_
#define __LITECONTROL_H_
#include "resource.h" // main symbols
#include <atlctl.h>
/////////////////////////////////////////////////////////////////////////////
// CLiteControl
class ATL_NO_VTABLE CLiteControl :
public CComObjectRootEx<CComSingleThreadModel>,
public IDispatchImpl<ILiteControl, &IID_ILiteControl, &LIBID_TaskAppLib>,
public CComControl<CLiteControl>,
public IPersistStreamInitImpl<CLiteControl>,
public IOleControlImpl<CLiteControl>,
public IOleObjectImpl<CLiteControl>,
public IOleInPlaceActiveObjectImpl<CLiteControl>,
public IViewObjectExImpl<CLiteControl>,
public IOleInPlaceObjectWindowlessImpl<CLiteControl>,
public CComCoClass<CLiteControl, &CLSID_LiteControl>
{
public:
CLiteControl() : m_pTaskFrame(NULL), m_clsidDestPage(GUID_NULL), m_strText(L"<empty>")
{
m_sizePreferred = m_sizeExtent;
}
~CLiteControl() { ATOMICRELEASE(m_pTaskFrame); }
HRESULT SetFrame(ITaskFrame* pFrame)
{
ATOMICRELEASE(m_pTaskFrame);
m_pTaskFrame = pFrame;
if (m_pTaskFrame)
m_pTaskFrame->AddRef();
return S_OK;
}
HRESULT SetDestinationPage(REFCLSID rclsidPage)
{
m_clsidDestPage = rclsidPage;
return S_OK;
}
HRESULT SetText(LPCWSTR pszText)
{
m_strText = pszText;
return S_OK;
}
HRESULT SetMaxExtent(LONG cxWidth, LONG cxHeight)
{
if (0 == cxWidth)
cxWidth = 2540; // 1 inch
if (0 == cxHeight)
cxHeight = 2540; // 1 inch
m_sizePreferred.cx = cxWidth;
m_sizePreferred.cy = cxHeight;
return S_OK;
}
STDMETHOD(GetExtent)(DWORD /*dwDrawAspect*/, SIZEL *psizel)
{
if (psizel == NULL)
return E_POINTER;
*psizel = m_sizePreferred;
return S_OK;
}
DECLARE_NOT_AGGREGATABLE(CLiteControl)
//DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CLiteControl)
COM_INTERFACE_ENTRY(ILiteControl)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(IViewObjectEx)
COM_INTERFACE_ENTRY(IViewObject2)
COM_INTERFACE_ENTRY(IViewObject)
COM_INTERFACE_ENTRY(IOleInPlaceObjectWindowless)
COM_INTERFACE_ENTRY(IOleInPlaceObject)
COM_INTERFACE_ENTRY2(IOleWindow, IOleInPlaceObjectWindowless)
COM_INTERFACE_ENTRY(IOleInPlaceActiveObject)
COM_INTERFACE_ENTRY(IOleControl)
COM_INTERFACE_ENTRY(IOleObject)
COM_INTERFACE_ENTRY(IPersistStreamInit)
COM_INTERFACE_ENTRY2(IPersist, IPersistStreamInit)
END_COM_MAP()
BEGIN_PROP_MAP(CLiteControl)
PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
// Example entries
// PROP_ENTRY("Property Description", dispid, clsid)
// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()
BEGIN_MSG_MAP(CLiteControl)
CHAIN_MSG_MAP(CComControl<CLiteControl>)
DEFAULT_REFLECTION_HANDLER()
MESSAGE_HANDLER(WM_LBUTTONUP, OnButtonUP)
MESSAGE_HANDLER(WM_RBUTTONUP, OnButtonUP)
END_MSG_MAP()
// Handler prototypes:
// LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
// LRESULT CommandHandler(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
// LRESULT NotifyHandler(int idCtrl, LPNMHDR pnmh, BOOL& bHandled);
// IViewObjectEx
DECLARE_VIEW_STATUS(VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE)
// ILiteControl
public:
HRESULT OnDraw(ATL_DRAWINFO& di)
{
RECT& rc = *(RECT*)di.prcBounds;
Rectangle(di.hdcDraw, rc.left, rc.top, rc.right, rc.bottom);
LPCWSTR pszText = m_strText ? m_strText : L"<empty>";
SetTextAlign(di.hdcDraw, TA_CENTER|TA_BASELINE);
TextOutW(di.hdcDraw,
(rc.left + rc.right) / 2,
(rc.top + rc.bottom) / 2,
pszText,
lstrlen(pszText));
return S_OK;
}
private:
ITaskFrame* m_pTaskFrame;
CLSID m_clsidDestPage;
CComBSTR m_strText;
SIZEL m_sizePreferred;
LRESULT OnButtonUP(UINT uMsg, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
if (NULL != m_pTaskFrame)
m_pTaskFrame->ShowPage(m_clsidDestPage, WM_RBUTTONUP == uMsg);
return 0;
}
};
#endif //__LITECONTROL_H_