// MainFrm.h : interface of the CMainFrame class
//
/////////////////////////////////////////////////////////////////////////////

#pragma once

class CMainFrame : public CFrameWindowImpl<CMainFrame>, public CUpdateUI<CMainFrame>,
		public CMessageFilter, public CIdleHandler
{
public:
	DECLARE_FRAME_WND_CLASS(NULL, IDR_MAINFRAME)

	CView m_view;

	CCommandBarCtrl m_CmdBar;

	virtual BOOL PreTranslateMessage(MSG* pMsg)
	{
		if(CFrameWindowImpl<CMainFrame>::PreTranslateMessage(pMsg))
			return TRUE;

		return m_view.PreTranslateMessage(pMsg);
	}

	virtual BOOL OnIdle()
	{
		UIUpdateToolBar();
		return FALSE;
	}

	BEGIN_MSG_MAP(CMainFrame)
		MESSAGE_HANDLER(WM_CREATE, OnCreate)
		COMMAND_ID_HANDLER(ID_APP_EXIT, OnFileExit)
		COMMAND_ID_HANDLER(ID_FILE_NEW, OnFileNew)
		COMMAND_ID_HANDLER(ID_EDIT_CUT, OnEditCutOrCopy)
		COMMAND_ID_HANDLER(ID_EDIT_COPY, OnEditCutOrCopy)
		COMMAND_ID_HANDLER(ID_VIEW_TOOLBAR, OnViewToolBar)
		COMMAND_ID_HANDLER(ID_VIEW_STATUS_BAR, OnViewStatusBar)
		COMMAND_ID_HANDLER(ID_APP_ABOUT, OnAppAbout)
		CHAIN_MSG_MAP(CUpdateUI<CMainFrame>)
		CHAIN_MSG_MAP(CFrameWindowImpl<CMainFrame>)
	END_MSG_MAP()

	BEGIN_UPDATE_UI_MAP(CMainFrame)
		UPDATE_ELEMENT(ID_VIEW_TOOLBAR, UPDUI_MENUPOPUP)
		UPDATE_ELEMENT(ID_VIEW_STATUS_BAR, UPDUI_MENUPOPUP)
		UPDATE_ELEMENT(ID_EDIT_PASTE, UPDUI_MENUPOPUP | UPDUI_TOOLBAR)
	END_UPDATE_UI_MAP()

	LRESULT OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
	{
		// Check if Common Controls 6.0 are used. If yes, use 32-bit (alpha) images
		// for the toolbar and command bar. If not, use the old, 4-bit images.
		UINT uResID = IDR_MAINFRAME_OLD;
		DWORD dwMajor = 0;
		DWORD dwMinor = 0;
		HRESULT hRet = AtlGetCommCtrlVersion(&dwMajor, &dwMinor);
		if(SUCCEEDED(hRet) && dwMajor >= 6)
			uResID = IDR_MAINFRAME;

		// Set values to be displayed in the view window
		m_view.m_dwCommCtrlMajor = dwMajor;
		m_view.m_dwCommCtrlMinor = dwMinor;
		m_view.m_bAlpha = (uResID == IDR_MAINFRAME);

		// create command bar window
		HWND hWndCmdBar = m_CmdBar.Create(m_hWnd, rcDefault, NULL, ATL_SIMPLE_CMDBAR_PANE_STYLE);
		// attach menu
		m_CmdBar.AttachMenu(GetMenu());
		// load command bar images
		m_CmdBar.LoadImages(uResID);
		// remove old menu
		SetMenu(NULL);

		HWND hWndToolBar = CreateSimpleToolBarCtrl(m_hWnd, uResID, FALSE, ATL_SIMPLE_TOOLBAR_PANE_STYLE);

		CreateSimpleReBar(ATL_SIMPLE_REBAR_NOBORDER_STYLE);
		AddSimpleReBarBand(hWndCmdBar);
		AddSimpleReBarBand(hWndToolBar, NULL, TRUE);
		CreateSimpleStatusBar();

		m_hWndClient = m_view.Create(m_hWnd, rcDefault, NULL, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, WS_EX_CLIENTEDGE);

		UIAddToolBar(hWndToolBar);
		UISetCheck(ID_VIEW_TOOLBAR, 1);
		UISetCheck(ID_VIEW_STATUS_BAR, 1);

		// register object for message filtering and idle updates
		CMessageLoop* pLoop = _Module.GetMessageLoop();
		ATLASSERT(pLoop != NULL);
		pLoop->AddMessageFilter(this);
		pLoop->AddIdleHandler(this);

		UIEnable(ID_EDIT_PASTE, FALSE);

		return 0;
	}

	LRESULT OnFileExit(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		PostMessage(WM_CLOSE);
		return 0;
	}

	LRESULT OnFileNew(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		// TODO: add code to initialize document

		return 0;
	}

	LRESULT OnEditCutOrCopy(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		// Just to test enabled/disabled image state - toggle Paste button
		static BOOL bEnabled = FALSE;
		bEnabled = !bEnabled;
		UIEnable(ID_EDIT_PASTE, bEnabled);
		return 0;
	}

	LRESULT OnViewToolBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		static BOOL bVisible = TRUE;	// initially visible
		bVisible = !bVisible;
		CReBarCtrl rebar = m_hWndToolBar;
		int nBandIndex = rebar.IdToIndex(ATL_IDW_BAND_FIRST + 1);	// toolbar is 2nd added band
		rebar.ShowBand(nBandIndex, bVisible);
		UISetCheck(ID_VIEW_TOOLBAR, bVisible);
		UpdateLayout();
		return 0;
	}

	LRESULT OnViewStatusBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		BOOL bVisible = !::IsWindowVisible(m_hWndStatusBar);
		::ShowWindow(m_hWndStatusBar, bVisible ? SW_SHOWNOACTIVATE : SW_HIDE);
		UISetCheck(ID_VIEW_STATUS_BAR, bVisible);
		UpdateLayout();
		return 0;
	}

	LRESULT OnAppAbout(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
	{
		CAboutDlg dlg;
		dlg.DoModal();
		return 0;
	}
};