mainfrm.cpp

第4章 图像增强（对比度增强、灰度变换法、直方图修整法、图像平滑、图像锐化、伪彩色和假彩色增强）；

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "MenuTest.h"

#include "MainFrm.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)
	ON_COMMAND_EX(CG_ID_VIEW_MYDIALOGBAR, OnBarCheck)
	ON_UPDATE_COMMAND_UI(CG_ID_VIEW_MYDIALOGBAR, OnUpdateControlBarMenu)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_WM_CONTEXTMENU()
	ON_COMMAND(ID_ADD_MENU, OnAddMenu)
	ON_COMMAND(ID_DELETE_MENU, OnDeleteMenu)
	ON_UPDATE_COMMAND_UI(ID_DRAW_CIRCLE, OnUpdateDrawCircle)
	ON_CBN_SELCHANGE(ID_COMBOBOX,OnSelchangeCombo)
	ON_UPDATE_COMMAND_UI(ID_INDICATOR_CTRL,OnUpdateKeyCtrl)
	ON_UPDATE_COMMAND_UI(ID_INDICATOR_SHIFT,OnUpdateKeyShift)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator

	ID_SEPARATOR,            //显示x坐标
	ID_SEPARATOR,            //显示x坐标
	ID_INDICATOR_CTRL,      //显示Ctrl键的状态
	ID_INDICATOR_SHIFT,      //显示Shift键的状态

	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

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

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	m_nSelectMenu = 0;
	m_nRectLeft = 50;
	m_nRectTop = 50;
	m_nRectRight = 200;
	m_nRectBottom = 150;
	m_nCircleLeft = 50;
	m_nCircleTop = 50;
	m_nCircleRight = 200;
	m_nCircleBottom = 150;
}

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_wndMyToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndMyToolBar.LoadToolBar(IDR_MYTOOLBAR))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	CRect rect;
	m_wndMyToolBar.SetButtonInfo(3,ID_COMBOBOX,TBBS_SEPARATOR,160);
	m_wndMyToolBar.GetItemRect(3,&rect);
	rect.bottom += 100;

	if(!m_ComboBox.Create(CBS_DROPDOWNLIST | WS_VISIBLE |
		WS_TABSTOP | CBS_AUTOHSCROLL, rect, &m_wndMyToolBar,
		ID_COMBOBOX))
		return -1;
	m_ComboBox.AddString("First Item");
	m_ComboBox.AddString("Second Item");
	m_ComboBox.AddString("Third Item");
	m_ComboBox.SetCurSel(0);

	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
	}
	m_wndStatusBar.SetPaneInfo(1,IDC_STATUSBAR,SBPS_POPOUT,50);
	m_wndStatusBar.SetPaneInfo(2,IDC_STATUSBAR,SBPS_POPOUT,50);

	// 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);

	m_wndMyToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndMyToolBar);

	// TODO: Add a menu item that will toggle the visibility of the
	// dialog bar named "My Dialog Bar":
	//   1. In ResourceView, open the menu resource that is used by
	//      the CMainFrame class
	//   2. Select the View submenu
	//   3. Double-click on the blank item at the bottom of the submenu
	//   4. Assign the new item an ID: CG_ID_VIEW_MYDIALOGBAR
	//   5. Assign the item a Caption: My Dialog Bar

	// TODO: Change the value of CG_ID_VIEW_MYDIALOGBAR to an appropriate value:
	//   1. Open the file resource.h
	// CG: The following block was inserted by the 'Dialog Bar' component
	{
		// Initialize dialog bar m_wndMyDialogBar
		if (!m_wndMyDialogBar.Create(this, CG_IDD_MYDIALOGBAR,
			CBRS_LEFT | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_HIDE_INPLACE,
			CG_ID_VIEW_MYDIALOGBAR))
		{
			TRACE0("Failed to create dialog bar m_wndMyDialogBar\n");
			return -1;		// fail to create
		}

		m_wndMyDialogBar.EnableDocking(CBRS_ALIGN_LEFT | CBRS_ALIGN_RIGHT);
		EnableDocking(CBRS_ALIGN_ANY);
		DockControlBar(&m_wndMyDialogBar);
        InitTreeCtrl();
	}

	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


void CMainFrame::OnContextMenu(CWnd* pWnd, CPoint point) 
{
	// TODO: Add your message handler code here
	CMenu menu;
	if(menu.LoadMenu(IDR_POPUP_MENU))
	{
	    CMenu *pPopup=menu.GetSubMenu(0);
	    pPopup->TrackPopupMenu(TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x, point.y,this);
	}
	
}

void CMainFrame::OnAddMenu() 
{
	// TODO: Add your command handler code here
	CString menu[2];
	menu[0]="允许画椭圆";
	menu[1]="禁止画椭圆";
	CMenu *pMenuDyna=NULL;
	CMenu *pMenu=NULL;
	CMenu *pTopMenu = GetMenu();
	int iPos;
	for(iPos=pTopMenu->GetMenuItemCount()-1; iPos>=0; iPos--)
	{
		pMenu=pTopMenu->GetSubMenu(iPos);
		if(pMenu && pMenu->GetMenuItemID(0)==ID_DRAW_RECT)
		{
			pMenuDyna=pMenu;
			break;
		}
	}
	for(iPos=pMenuDyna->GetMenuItemCount()-1; iPos>=5; iPos--)
		pMenuDyna->DeleteMenu(iPos,MF_BYPOSITION);
	for(int i=0;i<2;i++)
	{
         pMenuDyna->AppendMenu(MF_STRING,WM_USER+10+i, menu[i]);
	}
	
}

void CMainFrame::OnDeleteMenu() 
{
	// TODO: Add your command handler code here
	CWnd *pMainFrame=AfxGetMainWnd();
	CMenu *pMenuDyna=NULL;
	CMenu *pMenu=NULL;
	CMenu *pTopMenu=pMainFrame->GetMenu();
	int iPos;
	for(iPos=pTopMenu->GetMenuItemCount()-1; iPos>=0; iPos--)
	{
		pMenu=pTopMenu->GetSubMenu(iPos);
		if(pMenu && pMenu->GetMenuItemID(0)==ID_DRAW_RECT)
		{
			pMenuDyna=pMenu;
			break;
		}
	}
	for(iPos=pMenuDyna->GetMenuItemCount()-1; iPos>=5; iPos--)
		pMenuDyna->DeleteMenu(iPos,MF_BYPOSITION);
	
}

BOOL CMainFrame::OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo) 
{
	// TODO: Add your specialized code here and/or call the base class
	if(pHandlerInfo==NULL)
	{
		for(int i=0; i<2; i++)
		{
			if(nID==(UINT) (WM_USER+10+i))
			{
				if(nCode==CN_COMMAND)
					DoSelectMenu(i);
				else if(nCode==CN_UPDATE_COMMAND_UI)
					DoUpdateSelectMenu(i,(CCmdUI *) pExtra);
		    	return true;
			}
		}
	}
	return CFrameWnd::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);
}

void CMainFrame::DoSelectMenu(int i)
{
    m_nSelectMenu = i;
}

void CMainFrame::DoUpdateSelectMenu(int i, CCmdUI *pCmdUI)
{
	if(i==m_nSelectMenu)
		pCmdUI->SetCheck(1);
	else
		pCmdUI->SetCheck(0);
	pCmdUI->Enable(true); 
}

void CMainFrame::OnUpdateDrawCircle(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	if(m_nSelectMenu == 0)
		pCmdUI->Enable(true);
	else
		pCmdUI->Enable(false);
	
}
void CMainFrame::OnSelchangeCombo()
{
	CString mess;
	int CurSel;
    CurSel = m_ComboBox.GetCurSel();
	mess = "您选择了第 ";
	char No[3];
	itoa(CurSel,No,10);
	mess += No;
	mess += " 项!";
    MessageBox(mess, "消息框",MB_OK | MB_ICONINFORMATION);    	
}

void CMainFrame::OnUpdateKeyCtrl(CCmdUI *pCmdUI)
{
	pCmdUI->Enable(::GetKeyState(VK_CONTROL)<0);
}

void CMainFrame::OnUpdateKeyShift(CCmdUI *pCmdUI)
{
	pCmdUI->Enable(::GetKeyState(VK_SHIFT)<0);
} 

void CMainFrame::InitTreeCtrl()
{
	CTreeCtrl *pTree = (CTreeCtrl *) m_wndMyDialogBar.GetDlgItem(IDC_TREE);
	TV_INSERTSTRUCT TreeCtrlItem;
	HTREEITEM hTreeItem;

	TreeCtrlItem.hInsertAfter = TVI_LAST;
	TreeCtrlItem.item.mask = TVIF_TEXT|TVIF_PARAM;

	TreeCtrlItem.hParent = TVI_ROOT;
	TreeCtrlItem.item.pszText = "Root";
	hTreeItem = pTree->InsertItem(&TreeCtrlItem);

	TreeCtrlItem.hParent = hTreeItem;
	TreeCtrlItem.item.pszText = "Child1";
	pTree->InsertItem(&TreeCtrlItem);

	TreeCtrlItem.hParent = hTreeItem;
	TreeCtrlItem.item.pszText = "Child2";
	pTree->InsertItem(&TreeCtrlItem);

	TreeCtrlItem.hParent = hTreeItem;
	TreeCtrlItem.item.pszText = "Child3";
	pTree->InsertItem(&TreeCtrlItem);
}