travellerappdlg.cpp

旅行商问题

// TravellerAppDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "TravellerApp.h"
#include "TravellerAppDlg.h"
#include ".\travellerappdlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CTravellerAppDlg 对话框



CTravellerAppDlg::CTravellerAppDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTravellerAppDlg::IDD, pParent)
    , m_iSelected(-1)
    , m_iHighLight(-1)
    , m_bShowBackground(false)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTravellerAppDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CTravellerAppDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
    ON_WM_LBUTTONDOWN()
    ON_WM_LBUTTONUP()
    ON_WM_ERASEBKGND()
    ON_WM_SIZE()
    ON_WM_MOUSEMOVE()
    ON_WM_KEYDOWN()
    ON_COMMAND(ID_M_OPEN, OnMOpen)
    ON_COMMAND(ID_M_SAVE, OnMSave)
    ON_COMMAND(ID_M_CLEAR, OnMClear)
    ON_COMMAND(ID_M_DELETE, OnMDelete)
    ON_COMMAND(ID_M_SET_BK, OnMSetBk)
    ON_COMMAND(ID_M_SHOW_BK, OnMShowBk)
    ON_COMMAND(ID_M_BEGIN_COMPUTE, OnMBeginCompute)
    ON_COMMAND(ID_M_END_COMPUTE, OnMEndCompute)
    ON_WM_TIMER()
    ON_WM_CLOSE()
    ON_COMMAND(ID_M_QUIT, OnMQuit)
    ON_WM_CREATE()
    ON_COMMAND(ID_M_SHOW_TREND, OnMShowTrend)
    ON_COMMAND(ID_M_RAND, OnMRand)
    ON_COMMAND(ID_M_ABOUT, OnMAbout)
END_MESSAGE_MAP()


// CTravellerAppDlg 消息处理程序
void CTravellerAppDlg::OnMAbout()
{
    // TODO: 在此添加命令处理程序代码
    CAboutDlg dlg;
    dlg.DoModal();
}

BOOL CTravellerAppDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
    ::SetCurrentDirectory(this->m_cityMap.GetProPath());
    srand((UINT)time(NULL));

    this->GetMenu()->CheckMenuItem(ID_M_SHOW_BK, m_bShowBackground ? MF_CHECKED : MF_UNCHECKED);

    m_dlgTrend.Create(IDD_TREND, this);
    m_dlgTrend.m_trendLineMax.Create(::GetSystemMetrics(SM_CXSCREEN));
    m_dlgTrend.m_trendLineMax.SetName("最优分");
    m_dlgTrend.m_trendLineAVG.Create(::GetSystemMetrics(SM_CXSCREEN));
    m_dlgTrend.m_trendLineAVG.SetName("平均分");
    this->m_cityMap.m_pMaxTrendLine = & m_dlgTrend.m_trendLineMax;
    this->m_cityMap.m_pAVGTrendLine = & m_dlgTrend.m_trendLineAVG;
    ::SetWindowLong(m_dlgTrend.m_hWnd, GWL_EXSTYLE, ::GetWindowLong(this->m_hWnd, GWL_EXSTYLE) | WS_EX_LAYERED);
    ::SetLayeredWindowAttributes(m_dlgTrend.m_hWnd, 0, 200, LWA_ALPHA);
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CTravellerAppDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CTravellerAppDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}

    CRect rect;
    this->GetClientRect(&rect);
    if(rect.Width() <= 0 || rect.Height() <= 0)
    {
        return;
    }

    CClientDC dc(this);
    CDC tdc;
    CBitmap tbmp;
    tdc.CreateCompatibleDC(&dc);
    tbmp.CreateCompatibleBitmap(&dc, rect.Width(), rect.Height());
    tdc.SelectObject(&tbmp);
    
    CFont font;
    VERIFY(font.CreateFont(
        12,                        // nHeight
        0,                         // nWidth
        0,                         // nEscapement
        0,                         // nOrientation
        FW_NORMAL,                 // nWeight
        FALSE,                     // bItalic
        FALSE,                     // bUnderline
        0,                         // cStrikeOut
        ANSI_CHARSET,              // nCharSet
        OUT_DEFAULT_PRECIS,        // nOutPrecision
        CLIP_DEFAULT_PRECIS,       // nClipPrecision
        DEFAULT_QUALITY,           // nQuality
        DEFAULT_PITCH | FF_SWISS,  // nPitchAndFamily
        "宋体"));                 // lpszFacename

    CFont* def_font = tdc.SelectObject(&font);

    tdc.FillSolidRect(0, 0, rect.Width(), rect.Height(), RGB(255, 255, 255));
    rect.bottom -= 20;
    if(m_bShowBackground && !m_imgBackground.IsNull())
    {
        tdc.SetStretchBltMode(HALFTONE);
        this->m_imgBackground.StretchBlt(
            tdc.m_hDC, 0, 0, rect.Width(), rect.Height(),
            0, 0, m_imgBackground.GetWidth(), m_imgBackground.GetHeight()); 
    }
    this->m_cityMap.Draw(&tdc, rect, m_iSelected, m_iHighLight);

    tdc.FillSolidRect(0, rect.bottom, rect.Width(), 20, RGB(255, 255, 255));
    tdc.MoveTo(0, rect.bottom + 1);
    tdc.LineTo(rect.Width(), rect.bottom + 1);
    tdc.TextOut(10, rect.bottom + 5, this->m_cityMap.GetStateDescription());

    rect.bottom += 20;
    dc.BitBlt(0, 0, rect.Width(), rect.Height(), &tdc, 0, 0, SRCCOPY);

    tdc.SelectObject(def_font);
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CTravellerAppDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CTravellerAppDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
    m_iSelected = -1;
    {
        CRect rect;
        this->GetClientRect(&rect);
        rect.bottom -= 20;
        double x, y, dx, dy;
        x = double(point.x - rect.left) / rect.Width();
        y = double(point.y - rect.top) / rect.Height();
        dx = double(CM_CITY_DRAW_SIZE + 1) / rect.Width();
        dy = double(CM_CITY_DRAW_SIZE + 1) / rect.Height();
        this->m_iSelected = this->m_cityMap.HitTest(x, y, dx, dy);
        if(m_iSelected == -1 && ::GetKeyState(VK_LSHIFT) & 0x80)
        {
            this->m_cityMap.AddCity(x, y);
            m_iSelected = this->m_cityMap.GetCityNum() - 1;
            this->SetCapture();
        }
    }
    this->Invalidate(false);

    CDialog::OnLButtonDown(nFlags, point);
}

void CTravellerAppDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
    ::ReleaseCapture();

    CDialog::OnLButtonUp(nFlags, point);
}

BOOL CTravellerAppDlg::OnEraseBkgnd(CDC* pDC)