atlctrlw.h

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// Windows Template Library - WTL version 7.1
// Copyright (C) 1997-2003 Microsoft Corporation
// All rights reserved.
//
// This file is a part of the Windows Template Library.
// The code and information is provided "as-is" without
// warranty of any kind, either expressed or implied.

#ifndef __ATLCTRLW_H__
#define __ATLCTRLW_H__

#pragma once

#ifndef __cplusplus
	#error ATL requires C++ compilation (use a .cpp suffix)
#endif

#ifdef _WIN32_WCE
	#error atlctrlw.h is not supported on Windows CE
#endif

#ifndef __ATLAPP_H__
	#error atlctrlw.h requires atlapp.h to be included first
#endif

#ifndef __ATLCTRLS_H__
	#error atlctrlw.h requires atlctrls.h to be included first
#endif

#if (_WIN32_IE < 0x0400)
	#error atlctrlw.h requires _WIN32_IE >= 0x0400
#endif


///////////////////////////////////////////////////////////////////////////////
// Classes in this file:
//
// CCommandBarCtrlImpl<T, TBase, TWinTraits>
// CCommandBarCtrl
// CMDICommandBarCtrlImpl<T, TBase, TWinTraits>
// CMDICommandBarCtrl


namespace WTL
{

///////////////////////////////////////////////////////////////////////////////
// Command Bars

// Window Styles:
#define CBRWS_TOP		CCS_TOP
#define CBRWS_BOTTOM		CCS_BOTTOM
#define CBRWS_NORESIZE		CCS_NORESIZE
#define CBRWS_NOPARENTALIGN	CCS_NOPARENTALIGN
#define CBRWS_NODIVIDER		CCS_NODIVIDER

// Extended styles
#define CBR_EX_TRANSPARENT	0x00000001L
#define CBR_EX_SHAREMENU	0x00000002L
#define CBR_EX_ALTFOCUSMODE	0x00000004L
#define CBR_EX_TRACKALWAYS	0x00000008L

// standard command bar styles
#define ATL_SIMPLE_CMDBAR_PANE_STYLE \
	(WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | CBRWS_NODIVIDER | CBRWS_NORESIZE | CBRWS_NOPARENTALIGN)

// Messages - support chevrons for frame windows
#define CBRM_GETCMDBAR			(WM_USER + 301) // return command bar HWND
#define CBRM_GETMENU			(WM_USER + 302) // returns loaded or attached menu
#define CBRM_TRACKPOPUPMENU		(WM_USER + 303) // displays a popup menu

typedef struct tagCBRPOPUPMENU
{
	int cbSize;
	HMENU hMenu;         // popup menu do display
	UINT uFlags;         // TPM_* flags for ::TrackPopupMenuEx
	int x;
	int y;
	LPTPMPARAMS lptpm;   // ptr to TPMPARAMS for ::TrackPopupMenuEx
} CBRPOPUPMENU, *LPCBRPOPUPMENU;

// helper class
template <class T>
class CSimpleStack : public ATL::CSimpleArray< T >
{
public:
	BOOL Push(T t)
	{
#ifdef _CMDBAR_EXTRA_TRACE
		ATLTRACE2(atlTraceUI, 0, "CmdBar - STACK-PUSH (%8.8X) size = %i\n", t, GetSize());
#endif
		return Add(t);
	}

	T Pop()
	{
		int nLast = GetSize() - 1;
		if(nLast < 0)
			return NULL;   // must be able to convert to NULL
		T t = m_aT[nLast];
#ifdef _CMDBAR_EXTRA_TRACE
		ATLTRACE2(atlTraceUI, 0, "CmdBar - STACK-POP (%8.8X) size = %i\n", t, GetSize());
#endif
		if(!RemoveAt(nLast))
			return NULL;
		return t;
	}

	T GetCurrent()
	{
		int nLast = GetSize() - 1;
		if(nLast < 0)
			return NULL;   // must be able to convert to NULL
		return m_aT[nLast];
	}
};


///////////////////////////////////////////////////////////////////////////////
// CCommandBarCtrlBase - base class for the Command Bar implementation

class CCommandBarCtrlBase : public CToolBarCtrl
{
public:
	struct _MsgHookData
	{
		HHOOK hMsgHook;
		DWORD dwUsage;

		_MsgHookData() : hMsgHook(NULL), dwUsage(0)
		{ }
	};

	typedef ATL::CSimpleMap<DWORD, _MsgHookData*>   CMsgHookMap;
	static CMsgHookMap* s_pmapMsgHook;

	static HHOOK s_hCreateHook;
	static bool s_bW2K;  // For animation flag
	static CCommandBarCtrlBase* s_pCurrentBar;
	static bool s_bStaticInit;

	CSimpleStack<HWND> m_stackMenuWnd;
	CSimpleStack<HMENU> m_stackMenuHandle;

	HWND m_hWndHook;
	DWORD m_dwMagic;


	CCommandBarCtrlBase() : m_hWndHook(NULL), m_dwMagic(1314)
	{
		// init static variables
		if(!s_bStaticInit)
		{
			CStaticDataInitCriticalSectionLock lock;
			if(FAILED(lock.Lock()))
			{
				ATLTRACE2(atlTraceUI, 0, _T("ERROR : Unable to lock critical section in CCommandBarCtrlBase::CCommandBarCtrlBase.\n"));
				ATLASSERT(FALSE);
				return;
			}

			if(!s_bStaticInit)
			{
				// Just in case...
				AtlInitCommonControls(ICC_COOL_CLASSES | ICC_BAR_CLASSES);
				// Animation on Win2000 only
				s_bW2K = !AtlIsOldWindows();
				// done
				s_bStaticInit = true;
			}

			lock.Unlock();
		}
	}

	bool IsCommandBarBase() const { return m_dwMagic == 1314; }
};

__declspec(selectany) CCommandBarCtrlBase::CMsgHookMap* CCommandBarCtrlBase::s_pmapMsgHook = NULL;
__declspec(selectany) HHOOK CCommandBarCtrlBase::s_hCreateHook = NULL;
__declspec(selectany) CCommandBarCtrlBase* CCommandBarCtrlBase::s_pCurrentBar = NULL;
__declspec(selectany) bool CCommandBarCtrlBase::s_bW2K = false;
__declspec(selectany) bool CCommandBarCtrlBase::s_bStaticInit = false;


///////////////////////////////////////////////////////////////////////////////
// CCommandBarCtrl - ATL implementation of Command Bars

template <class T, class TBase = CCommandBarCtrlBase, class TWinTraits = ATL::CControlWinTraits>
class ATL_NO_VTABLE CCommandBarCtrlImpl : public ATL::CWindowImpl< T, TBase, TWinTraits >
{
public:
	DECLARE_WND_SUPERCLASS(NULL, TBase::GetWndClassName())

// Declarations
	struct _MenuItemData	// menu item data
	{
		DWORD dwMagic;
		LPTSTR lpstrText;
		UINT fType;
		UINT fState;
		int iButton;

		_MenuItemData() { dwMagic = 0x1313; }
		bool IsCmdBarMenuItem() { return (dwMagic == 0x1313); }
	};

	struct _ToolBarData	// toolbar resource data
	{
		WORD wVersion;
		WORD wWidth;
		WORD wHeight;
		WORD wItemCount;
		//WORD aItems[wItemCount]

		WORD* items()
			{ return (WORD*)(this+1); }
	};

// Constants
	enum _CmdBarDrawConstants
	{
		s_kcxGap = 1,
		s_kcxTextMargin = 2,
		s_kcxButtonMargin = 3,
		s_kcyButtonMargin = 3
	};

	enum
	{
		_nMaxMenuItemTextLength = 100,
		_chChevronShortcut = _T('/')
	};

#ifndef DT_HIDEPREFIX
	enum { DT_HIDEPREFIX = 0x00100000 };
#endif //!DT_HIDEPREFIX

// Data members
	HMENU m_hMenu;
	HIMAGELIST m_hImageList;
	ATL::CSimpleValArray<WORD> m_arrCommand;

	DWORD m_dwExtendedStyle;   // Command Bar specific extended styles

	ATL::CContainedWindow m_wndParent;

	bool m_bMenuActive:1;
	bool m_bAttachedMenu:1;
	bool m_bImagesVisible:1;
	bool m_bPopupItem:1;
	bool m_bContextMenu:1;
	bool m_bEscapePressed:1;
	bool m_bSkipMsg:1;
	bool m_bParentActive:1;
	bool m_bFlatMenus:1;
	bool m_bUseKeyboardCues:1;
	bool m_bShowKeyboardCues:1;
	bool m_bAllowKeyboardCues:1;
	bool m_bKeyboardInput:1;
	bool m_bAlphaImages:1;
	bool m_bLayoutRTL:1;
	bool m_bSkipPostDown:1;

	int m_nPopBtn;
	int m_nNextPopBtn;

	SIZE m_szBitmap;
	SIZE m_szButton;

	COLORREF m_clrMask;
	CFont m_fontMenu;   // used internally, only to measure text

	UINT m_uSysKey;

	HWND m_hWndFocus;   // Alternate focus mode

	int m_cxExtraSpacing;

// Constructor/destructor
	CCommandBarCtrlImpl() : 
			m_hMenu(NULL), 
			m_hImageList(NULL), 
			m_wndParent(this, 1), 
			m_bMenuActive(false), 
			m_bAttachedMenu(false), 
			m_nPopBtn(-1), 
			m_nNextPopBtn(-1), 
			m_bPopupItem(false),
			m_bImagesVisible(true),
			m_bSkipMsg(false),
			m_uSysKey(0),
			m_hWndFocus(NULL),
			m_bContextMenu(false),
			m_bEscapePressed(false),
			m_clrMask(RGB(192, 192, 192)),
			m_dwExtendedStyle(CBR_EX_TRANSPARENT | CBR_EX_SHAREMENU | CBR_EX_TRACKALWAYS),
			m_bParentActive(true),
			m_bFlatMenus(false),
			m_bUseKeyboardCues(false),
			m_bShowKeyboardCues(false),
			m_bAllowKeyboardCues(true),
			m_bKeyboardInput(false),
			m_cxExtraSpacing(0),
			m_bAlphaImages(false),
			m_bLayoutRTL(false),
			m_bSkipPostDown(false)
	{
		SetImageSize(16, 15);   // default
 	}

	~CCommandBarCtrlImpl()
	{
		if(m_wndParent.IsWindow())
/*scary!*/			m_wndParent.UnsubclassWindow();

		if(m_hMenu != NULL && (m_dwExtendedStyle & CBR_EX_SHAREMENU) == 0)
			::DestroyMenu(m_hMenu);

		if(m_hImageList != NULL)
			::ImageList_Destroy(m_hImageList);
	}

// Attributes
	DWORD GetCommandBarExtendedStyle() const
	{
		return m_dwExtendedStyle;
	}

	DWORD SetCommandBarExtendedStyle(DWORD dwExtendedStyle, DWORD dwMask = 0)
	{
		DWORD dwPrevStyle = m_dwExtendedStyle;
		if(dwMask == 0)
			m_dwExtendedStyle = dwExtendedStyle;
		else
			m_dwExtendedStyle = (m_dwExtendedStyle & ~dwMask) | (dwExtendedStyle & dwMask);
		return dwPrevStyle;
	}

	CMenuHandle GetMenu() const
	{
		ATLASSERT(::IsWindow(m_hWnd));
		return m_hMenu;
	}

	COLORREF GetImageMaskColor() const
	{
		return m_clrMask;
	}

	COLORREF SetImageMaskColor(COLORREF clrMask)
	{
		COLORREF clrOld = m_clrMask;
		m_clrMask = clrMask;
		return clrOld;
	}

	bool GetImagesVisible() const
	{
		return m_bImagesVisible;
	}

	bool SetImagesVisible(bool bVisible)
	{
		bool bOld = m_bImagesVisible;
		m_bImagesVisible = bVisible;
		return bOld;
	}

	void GetImageSize(SIZE& size) const
	{
		size = m_szBitmap;
	}

	bool SetImageSize(SIZE& size)
	{
		return SetImageSize(size.cx, size.cy);
	}

	bool SetImageSize(int cx, int cy)
	{
		if(m_hImageList != NULL)
		{
			if(::ImageList_GetImageCount(m_hImageList) == 0)   // empty
			{
				::ImageList_Destroy(m_hImageList);
				m_hImageList = NULL;
			}
			else
			{
				return false;   // can't set, image list exists
			}
		}

		if(cx == 0 || cy == 0)
			return false;

		m_szBitmap.cx = cx;
		m_szBitmap.cy = cy;
		m_szButton.cx = m_szBitmap.cx + 2 * s_kcxButtonMargin;
		m_szButton.cy = m_szBitmap.cy + 2 * s_kcyButtonMargin;

		return true;
	}

	bool GetAlphaImages() const
	{
		return m_bAlphaImages;
	}

	bool SetAlphaImages(bool bAlphaImages)
	{
		if(m_hImageList != NULL)
		{
			if(::ImageList_GetImageCount(m_hImageList) == 0)   // empty
			{
				::ImageList_Destroy(m_hImageList);
				m_hImageList = NULL;
			}
			else
			{
				return false;   // can't set, image list exists
			}
		}

		m_bAlphaImages = bAlphaImages;
		return true;
	}

	HWND GetCmdBar() const
	{
		ATLASSERT(::IsWindow(m_hWnd));
		return (HWND)::SendMessage(m_hWnd, CBRM_GETCMDBAR, 0, 0L);
	}

// Methods
	HWND Create(HWND hWndParent, RECT& rcPos, LPCTSTR szWindowName = NULL,
			DWORD dwStyle = 0, DWORD dwExStyle = 0,
			UINT nID = 0, LPVOID lpCreateParam = NULL)
	{
		// These styles are required for command bars
		dwStyle |= TBSTYLE_LIST | TBSTYLE_FLAT;
#if (_MSC_VER >= 1300)
		return ATL::CWindowImpl< T, TBase, TWinTraits >::Create(hWndParent, rcPos, szWindowName, dwStyle, dwExStyle, nID, lpCreateParam);
#else //!(_MSC_VER >= 1300)
		typedef ATL::CWindowImpl< T, TBase, TWinTraits >   _baseClass;
		return _baseClass::Create(hWndParent, rcPos, szWindowName, dwStyle, dwExStyle, nID, lpCreateParam);
#endif //!(_MSC_VER >= 1300)
	}

	BOOL AttachToWindow(HWND hWnd)
	{
		ATLASSERT(m_hWnd == NULL);
		ATLASSERT(::IsWindow(hWnd));
		BOOL bRet = SubclassWindow(hWnd);
		if(bRet)
		{
			m_bAttachedMenu = true;
			T* pT = static_cast<T*>(this);
			pT->GetSystemSettings();
		}
		return bRet;
	}