mainfrm.cpp

全屏显示的VC++源代码,简单实用。代码用VC++6.0编写。

/////////////////////////////////////////////////////////////////////////////
// Project：MYIMGAPP
// Author：NorthTibet
// Date：星期四, 九月 26, 2002
// Description：通过定制的C++类在MFC框架中轻松显示多种格式的图象
//
/////////////////////////////////////////////////////////////////////////////
// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "Myimgapp.h"

#include "MainFrm.h"

#include "FullScreenHandler.h"

#include "TraceWin.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
	ON_NOTIFY(TBN_DROPDOWN, AFX_IDW_TOOLBAR, OnToolbarDropDown)

	ON_WM_GETMINMAXINFO()
	ON_COMMAND(ID_VIEW_FULLSCREEN, OnViewFullScreen)
	ON_UPDATE_COMMAND_UI(ID_VIEW_FULLSCREEN, OnUpdateViewFullScreen)
	ON_WM_NCHITTEST()

END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);
/*
#ifndef TB_SETEXTENDEDSTYLE
#define TB_SETEXTENDEDSTYLE     (WM_USER + 84)  // For TBSTYLE_EX_*
#define TBSTYLE_EX_DRAWDDARROWS 0x00000001
#endif
*/
	CToolBar& tb = m_wndToolBar;
	tb.SendMessage(TB_SETEXTENDEDSTYLE, 0, TBSTYLE_EX_DRAWDDARROWS);

	// change button style to dropdown
	int iButton = tb.SendMessage(TB_COMMANDTOINDEX, ID_FILE_OPEN);
	DWORD dwStyle = tb.GetButtonStyle(iButton);
	dwStyle |= TBSTYLE_DROPDOWN;
	tb.SetButtonStyle(iButton, dwStyle);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers
//////////////////
// Handle TBN_DROPDOWN
// Default is to display the specified menu at the right place.
// You can override to generate dynamic menus
//
// Args:
//		- NMTOOLBAR struct from TBN_DROPDOWN
//		- command id of button
//		- point to display menu at
//
void CMainFrame::OnToolbarDropDown(NMTOOLBAR* pnmtb, LRESULT *plr)
{
	// load and display popup menu
	CMenu menu;
	menu.LoadMenu(IDR_FILEDROPDOWN);
	CMenu* pPopup = menu.GetSubMenu(0);
	ASSERT(pPopup);

	CRect rc;
	m_wndToolBar.SendMessage(TB_GETRECT, pnmtb->iItem, (LPARAM)&rc);
	m_wndToolBar.ClientToScreen(&rc);

	pPopup->TrackPopupMenu(TPM_LEFTALIGN|TPM_LEFTBUTTON|TPM_VERTICAL,
		rc.left, rc.bottom, this, &rc);
}

//////////////////
// Important to handle this in order to set size
// of window larger than whole screen.
//
void CMainFrame::OnGetMinMaxInfo(MINMAXINFO* lpmmi)
{
	CSize sz = FullScreenHandler.GetMaxSize();
	lpmmi->ptMaxSize = CPoint(sz);
	lpmmi->ptMaxTrackSize = CPoint(sz);
}
//////////////////
// View full screen mode. Calls CFullScreenHandler to do the work.
//
void CMainFrame::OnViewFullScreen()
{
	if (FullScreenHandler.InFullScreenMode())
		FullScreenHandler.Restore(this);
	else 
		FullScreenHandler.Maximize(this, GetActiveView());
}

//////////////////
// Put checkmark next to command if in full screen mode.
//
void CMainFrame::OnUpdateViewFullScreen(CCmdUI* pCmdUI)
{
	pCmdUI->SetCheck(FullScreenHandler.InFullScreenMode());
}

//////////////////
// Non-client hit-test handler to move window by its client area. The view
// returns HTTRANSPARENT and the frame returns HTCAPTION if the mouse
// is in the client area. Together, these handlers let user move the
// window by dragging the client area.
//
UINT CMainFrame::OnNcHitTest(CPoint pt)
{
	CRect rc;
	GetClientRect(&rc);
	ClientToScreen(&rc);
	return rc.PtInRect(pt) ? HTCAPTION : CFrameWnd::OnNcHitTest(pt);
}