ООП / 1111 / tpad / tpad / tpadDlg

// tpadDlg.cpp : implementation file
//

#include "stdafx.h"
#include "tpad.h"
#include "tpadDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

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

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

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

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CtpadDlg dialog




CtpadDlg::CtpadDlg(CWnd* pParent /*=NULL*/)
	: CDialogEx(CtpadDlg::IDD, pParent)
	, leftdown(false)
	, rightdown(false)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CtpadDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CtpadDlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_MOUSEMOVE()
	ON_WM_RBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_RBUTTONUP()
	ON_WM_NCRBUTTONUP()
END_MESSAGE_MAP()


// CtpadDlg message handlers

BOOL CtpadDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

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

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CtpadDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

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

		// Center icon in client rectangle
		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;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialogEx::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CtpadDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}



void CTouchpadDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
	leftdown=true;
	CDialogEx::OnLButtonDown(nFlags, point);
}


void CTouchpadDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
	leftdown=false;
	if(N<=15){
		MessageBox(L"Line is too short",L"Error", MB_ICONERROR);
	}
	else{
	//проверка на прямую горизонтальную линию... - фигня, надо что-то другое
		for(i=0;i<N;i++){
			if(_y[i]<_y[0]+15 && _y[i]>_y[0]-15){
			
				flag=1;
			}
			else{
				flag=0;
				break;
			}
		}
		if(flag==1){
			MessageBox(L"Line 0 deg",L"I recognised it!");
		}
		if(flag==0){//проверка на прямую вертикальную линию... - аналогично...
			for(i=0;i<N;i++){
				if(_x[i]<_x[0]+15 && _x[i]>_x[0]-15){
			
					flag=2;
				}
				else{
					flag=0;
					break;
				}
			}
		}
		if(flag==2){
			MessageBox(L"Line 90 deg",L"I recognised it!");
		}
		if(flag==0){//проверка на прямую - 45 градусов
			long x_s=_x[0];
			long y_s=_y[0];
			for(i=1;i<N;i=i+N/3){
				long x0=_x[i]-x_s;
				long y0=_y[i]-y_s;
				if(x0+y0<=15 && x0+y0>=-15) flag=3;
				else{
					flag=0;
					break;
				}
			}
		}
		if(flag==3){
			MessageBox(L"Line 45 deg",L"I recognised it!");
		}
		if(flag==0){//проверка на прямую - 135 градусов
			long x_s=_x[0];
			long y_s=_y[0];
			for(i=1;i<N;i=i+N/3){
				long x0=_x[i]-x_s;
				long y0=_y[i]-y_s;
				if(x0-y0<=15 && x0-y0>=-15) flag=4;
				else{
					flag=0;
					break;
				}
			}
		}
		if(flag==4){
			MessageBox(L"Line 135 deg",L"I recognised it!");
		}
		if(flag==0){//проверка на галочку...
			int M=N/2;
			if((abs((_x[N-1]+_x[0])/2-_x[M]))<20 && abs(_y[N-1]-_y[0])<=10 && abs(_y[N-1]-_y[0])>=-10 && abs(_x[N-1]-_x[0])>abs(_x[N-1]-_x[M])){ //подумать над алгоритмом - FUCK YEAH!! ME GUSTA!!!
				if(_y[M]>_y[0]) flag=6;
				else flag=5;
			}
		}
		if(flag==5){
			MessageBox(L"Tick up",L"I recognised it!");
		}
		else if(flag==6){
			MessageBox(L"Tick down",L"I recognised it!");
		}
		if(flag==0){ //проверка на окружность
			//находим крайние точки предполагаемой окружности...
			long xl,xr,yu,yd;
			xl=xr=_x[0];
			yu=yd=_y[0];
			for(i=1;i<N;i++){
				if(_y[i]<yu) yu=_y[i];
				else if (_y[i]>yd) yd=_y[i];
				if(_x[i]<xl) xl=_x[i];
				else if (_x[i]>xr) xr=_x[i];
			}
			long xc=(xr+xl)/2;
			long yc=(yu+yd)/2;
			long r=xc;
			for(i=1;i<N;i=i+N/3){
				long x0=_x[i]-xc;
				long y0=_y[i]-yc;
				if((x0*x0+y0*y0<=(r+5)*(r+5))&&(x0*x0+y0*y0<=(r-10)*(r-10))&&(abs(_x[0]-_x[N-1])<=20)&&(abs(_y[0]-_y[N-1])<=20)) flag=7;
				else{
					flag=0;
					break;
				}
			}
		}
		if(flag==7){
			MessageBox(L"Circle",L"I recognised it!");
		}
		if(flag==0){
			MessageBox(L"I don't understand",L"I don't recognised it");	
		}
	}
	flag=0;
	i=0;
	N=0;
	CDialogEx::OnLButtonUp(nFlags, point);
}


void CTouchpadDlg::OnMouseMove(UINT nFlags, CPoint point)
{
	CClientDC dc(this);// получаем контекст устройства для рисования
	CPen pen; // создаем инструмент для рисования …
	pen.CreatePen(PS_SOLID,5,RGB(0,0,0)); // … с заданными свойствами
	dc.SelectObject(&pen); // выбираем инструмент для рисования	
		if(leftdown){
		dc.MoveTo(point.x,point.y); //установка графического курсора
		dc.LineTo(point.x,point.y); //линия от курсора в заданную точку
		_x[i]=point.x;
		_y[i]=point.y;
		i++;
		N++;
	}
	CDialogEx::OnMouseMove(nFlags, point);
}


void CTouchpadDlg::OnBnClickedButton1()
{
	CClientDC dc(this);
	CBrush brush;
	brush.CreateSolidBrush(RGB(255, 255, 255));
	dc.SelectObject(&brush);
	RECT crect;
	crect.left=0;
	crect.right=500;
	crect.top=0;
	crect.bottom=500;
	FillRect(dc,&crect, brush);
}