📄 图形学实验dlg.cpp
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// 图形学实验Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "图形学实验.h"
#include "图形学实验Dlg.h"
#include "ShoumingDlg.h"
#include <math.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define PI 3.14159
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMyDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMyDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//{{AFX_MSG_MAP(CMyDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_COMMAND(IDM_GUANYU, OnGuanyu)
ON_COMMAND(ID_point, Onpoint)
ON_COMMAND(ID_X30, OnX30)
ON_COMMAND(IDM_2Line, On2Line)
ON_COMMAND(IDM_2yuan, On2yuan)
ON_COMMAND(IDM_3duomianti, On3duomianti)
ON_COMMAND(IDM_CLEAR, OnClear)
ON_COMMAND(IDM_KUAIda, OnKUAIda)
ON_COMMAND(IDM_KUAIxiao, OnKUAIxiao)
ON_COMMAND(IDM_X60, OnX60)
ON_COMMAND(IDM_X90, OnX90)
ON_COMMAND(IDM_Y30, OnY30)
ON_COMMAND(IDM_Y90, OnY90)
ON_COMMAND(IDM_Y60, OnY60)
ON_COMMAND(IDM_YUAN, OnYuan)
ON_COMMAND(ID_EXIT, OnExit)
ON_WM_MOUSEMOVE()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_ERASEBKGND()
ON_WM_TIMER()
ON_COMMAND(IDM_Z30, OnZ30)
ON_COMMAND(IDM_Z60, OnZ60)
ON_COMMAND(IDM_Z90, OnZ90)
ON_COMMAND(ID_FUYUAN, OnFuyuan)
ON_COMMAND(IDM_HUAJIA, OnHuajia)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers
BOOL CMyDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
CenterWindow();
// 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)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
if(!m_wndToolbar.Create(this) || !m_wndToolbar.LoadToolBar(IDR_TOOLBAR1))
{
TRACE0("Failed to Create Dialog Toolbar\n");
EndDialog(IDCANCEL);
}
CRect rcClientOld; // 客户区RECT
CRect rcClientNew; // 加入TOOLBAR后的CLIENT RECT
GetClientRect(rcClientOld); //
// Called to reposition and resize control bars in the client area of a window
// The reposQuery FLAG does not really traw the Toolbar. It only does the calculations.
// And puts the new ClientRect values in rcClientNew so we can do the rest of the Math.
//重新计算RECT大小
RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0,reposQuery,rcClientNew);
// All of the Child Windows (Controls) now need to be moved so the Tollbar does not cover them up.
//所有的子窗口将被移动，以免被TOOLBAR覆盖
// Offest to move all child controls after adding Tollbar
//计算移动的距离
CPoint ptOffset(rcClientNew.left-rcClientOld.left,
rcClientNew.top-rcClientOld.top);
CRect rcChild;
CWnd* pwndChild = GetWindow(GW_CHILD); //得到子窗口
while(pwndChild) // 处理所有子窗口
{//移动所有子窗口
pwndChild->GetWindowRect(rcChild);
ScreenToClient(rcChild);
rcChild.OffsetRect(ptOffset);
pwndChild->MoveWindow(rcChild,FALSE);
pwndChild = pwndChild->GetNextWindow();
}
CRect rcWindow;
GetWindowRect(rcWindow); // 得到对话框RECT
rcWindow.right += rcClientOld.Width() - rcClientNew.Width(); // 修改对话框尺寸
rcWindow.bottom += rcClientOld.Height() - rcClientNew.Height();
MoveWindow(rcWindow,FALSE); // Redraw Window
RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,0);
// 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
int i,j;
//初始屏幕各点数据,为0表示空白,1表示点不空白
for (i = 0; i <= 500; i++)
{
for (j = 0; j<= 500; j++)
{
pointdata[i][j] = 0;
}
}
//a为多面体边长,可以扩充程序变成可以调节大小的
a= 200;
//A[]存储多面体顶点坐标
A[0].x=-100; A[0].y=-57.735; A[0].z=0;
A[1].x=100; A[1].y=-57.735; A[1].z=0;
A[4].x=0; A[4].y=0; A[4].z=-141.4034;
A[3].x=0; A[3].y=115.47; A[3].z=0;
A[2].x=0; A[2].y=0; A[2].z=141.4034;
//演示画家算法用到的
for(i = 0; i < 5; i ++)
{
LastA[i].x = A[i].x;
LastA[i].y = A[i].y;
LastA[i].z = A[i].z;
}
mybrush[0].CreateSolidBrush(RGB(255,0,0));
mybrush[1].CreateSolidBrush(RGB(255,255,0));
mybrush[2].CreateSolidBrush(RGB(0,255,0));
mybrush[3].CreateSolidBrush(RGB(0,255,255));
mybrush[4].CreateSolidBrush(RGB(0,0,255));
mybrush[5].CreateSolidBrush(RGB(255,0,255));
//state初始为0,屏幕为空白
state = 0;
//计时器未启用
isTimerOn = false;
//方向没有选择
fangxiang = 0;
isfirstview = true;
//设置窗口topmost属性
::SetWindowPos(this->m_hWnd,HWND_TOPMOST,0,0,0,0,SWP_NOMOVE|SWP_NOSIZE);
return TRUE; // return TRUE unless you set the focus to a control
}
void CMyDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else if (nID == SC_CLOSE)
{
//退出时显示About 对话框
CAboutDlg dlgAbout;
dlgAbout.DoModal();
CDialog::OnSysCommand(nID,lParam);
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
BOOL CMyDlg::PreTranslateMessage(MSG* pMsg)
{
// TODO: Add your specialized code here and/or call the base class
//截获ESC和回车键，避免按下此键时关闭对话框
if (pMsg->message == WM_KEYDOWN)
{
switch(pMsg->wParam)
{
case VK_ESCAPE:
{
CAboutDlg dlg;
//显示About对话框,确定之后退出
if(dlg.DoModal() == IDCANCEL)
OnOK();
return true;
}
case VK_UP:
{
//响应键盘向上方向键
if (state == 7)
{//如果是现在处在显示多面体的画面就执行
for (int i = 0; i < 5; i++)
{//将多面体绕x轴旋转 1 度之后刷新显示
zhou = 'x';
changelitipoint(A[i],zhou,PI/-180);
}
Invalidate();
break;
}
}
case VK_DOWN:
{
//响应键盘向下方向键,与上面VK_UP响应类似,角度相反
if (state == 7)
{
for (int i = 0; i < 5; i++)
{
zhou = 'x';
changelitipoint(A[i],zhou,PI/(180.0));
}
Invalidate();
break;
}
}
case VK_LEFT:
{
//响应键盘向左方向键,绕y轴旋转
if (state == 7)
{
for (int i = 0; i < 5; i++)
{
zhou = 'y';
changelitipoint(A[i],zhou,PI/180);
}
Invalidate();
break;
}
}
case VK_RIGHT:
{
//类上
if (state == 7)
{
for (int i = 0; i < 5; i++)
{
zhou = 'y';
changelitipoint(A[i],zhou,PI/-180);
}
Invalidate();
break;
}
}
case 'W':
{
//响应W按键,通过启动计时器,实现自动向上旋转效果
if (!isTimerOn && state == 7)
{//如果是多面体选项并且未启用计时器
fangxiang = 1;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
if (state == 7 && isTimerOn)
{ //如果是多面体选项并且已经启动计时器
//如果多面体是向上旋转的,就直接返回,否则
//先终止计时器,然后重新启动,使多面体向上旋转
if (fangxiang == 1)
{
break;
}
else
{
KillTimer(1);
fangxiang = 1;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
}
}
case 'S':
{
//响应S按键消息,类似W消息处理
if (!isTimerOn && state == 7)
{
fangxiang = 2;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
if (state == 7 && isTimerOn)
{
if (fangxiang == 2)
{
break;
}
else
{
KillTimer(1);
fangxiang = 2;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
}
}
case 'A':
{
//类上
if (!isTimerOn && state == 7)
{
fangxiang = 3;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
if (state == 7 && isTimerOn)
{
if (fangxiang == 3)
{
break;
}
else
{
KillTimer(1);
fangxiang = 3;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
}
}
case 'D':
{
//类上
if (!isTimerOn && state == 7)
{
fangxiang = 4;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
if (state == 7 && isTimerOn)
{
if (fangxiang == 4)
{
break;
}
else
{
KillTimer(1);
fangxiang = 4;
SetTimer(1,50,NULL);
isTimerOn = true;
break;
}
}
}
case 'T':
{
//如果已经启用计时器,将其终止
if (state == 7 && isTimerOn)
{
KillTimer(1);
isTimerOn = false;
break;
}
}
default:
{
//其它消息不做反应
return true;
}
}
}
return CDialog::PreTranslateMessage(pMsg);
}
void CMyDlg::OnPaint()
{
//刷新屏幕,根据全局变量state的状态决定执行操作
CPaintDC dc(this); // device context for painting
if (IsIconic())
{
SendMessage(WM_ICONERASEBKGND, (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
{
switch(state)
{
case 0:
{
//如果计时器启用,将其终止
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
//显示空白屏幕
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
break;
}
case 1:
{
//同上
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
//先清屏,然后在屏幕中心画点
//就我创建的对话框而言,中心为(250,280)
//可以用GetClientRect(&rect);得到屏幕的矩形大小再计算中心点
//避免程序复杂,直接用数据,并且对话框是不支持改变其大小的,故可行
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
dc.SetPixelV(CPoint(250,280),RGB(0,0,255));
break;
}
case 2:
{
//同上
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
//清屏然后画小矩形块
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
CRect myrect(240,270,260,290);
CBrush mybrush;
mybrush.CreateSolidBrush(RGB(0,0,255));
dc.FillRect(myrect,&mybrush);
break;
}
case 3:
{
//同上
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
//清屏然后画大矩形
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
CRect myrect(230,260,270,300);
CBrush mybrush;
mybrush.CreateSolidBrush(RGB(0,0,255));
dc.FillRect(myrect,&mybrush);
break;
}
case 4:
{
//同上
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
//清屏然后在中心画圆
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
CBrush mybrush;
mybrush.CreateSolidBrush(RGB(0,0,255));
CRgn myrgn;
myrgn.CreateEllipticRgn(240,270,260,290);
dc.FillRgn(&myrgn,&mybrush);
break;
}
case 5:
{
//清屏然后等待用户画线
//将屏幕的点的信息赋值为初始状态
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
}
dc.FillSolidRect(0,30,500,530,RGB(255,255,255));
int i,j;
for (i = 0; i <= 500; i++)
{
for (j = 0; j<= 500; j++)
{
pointdata[i][j] = 0;
}
}
break;
}
case 6:
{
//清屏然后等待用户画圆
//同上
if (isTimerOn)
{
KillTimer(1);
isTimerOn = false;
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