www.pudn.com > assigment1.zip > myGraphicsView.cpp
// myGraphicsView.cpp : implementation of the CMyGraphicsView class
//
#include "stdafx.h"
#include "myGraphics.h"
#include "myGraphicsDoc.h"
#include "myGraphicsView.h"
#include "graph.h"
#include "PenColorDlg.h"
#include
#include "line_property.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView
IMPLEMENT_DYNCREATE(CMyGraphicsView, CView)
BEGIN_MESSAGE_MAP(CMyGraphicsView, CView)
//{{AFX_MSG_MAP(CMyGraphicsView)
ON_WM_LBUTTONDOWN()
ON_WM_RBUTTONDOWN()
ON_WM_CREATE()
ON_WM_DESTROY()
ON_WM_SIZE()
ON_COMMAND(ID_BASIC_POLYGON, OnBasicPolygon)
ON_COMMAND(ID_BASIC_LINES, OnBasicLines)
ON_COMMAND(ID_MAGIC_CIRCLE, OnMagicCircle)
ON_WM_MOUSEMOVE()
ON_WM_LBUTTONUP()
ON_COMMAND(ID_FRACTALS_TREE, OnFractalsTree)
//}}AFX_MSG_MAP
// Standard printing commands
ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView construction/destruction
CMyGraphicsView::CMyGraphicsView()
{
m_pN = 0;
w = h = 0;
m_circle=0;
m_Flag=-1;
mPenColor = RGB(0,0,0);
m_line_method=0;
m_line_width=0;
iRed=0;
iBlue=0;
iGreen=0;
}
CMyGraphicsView::~CMyGraphicsView()
{
}
BOOL CMyGraphicsView::PreCreateWindow(CREATESTRUCT& cs)
{
TRACE0("PreCreateWindow\r\n");
// settings for OpenGL
cs.style |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView drawing
void CMyGraphicsView::OnDraw(CDC* pDC)
{
CMyGraphicsDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
}
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView printing
BOOL CMyGraphicsView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CMyGraphicsView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CMyGraphicsView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView diagnostics
#ifdef _DEBUG
void CMyGraphicsView::AssertValid() const
{
CView::AssertValid();
}
void CMyGraphicsView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CMyGraphicsDoc* CMyGraphicsView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyGraphicsDoc)));
return (CMyGraphicsDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CMyGraphicsView message handlers
void CMyGraphicsView::OnLButtonDown(UINT nFlags, CPoint point)
{
CMyGraphicsDoc *pDoc = GetDocument();
CGraph dc(this);
CClientDC dc2(this);
CClientDC dc3(this);
CPen pen;
// HWND hWnd=GetSafeHwnd();
// HDC hDC =::GetDC(hWnd);
int i;
if(pDoc->mFlag){
pDoc->mFlag = FALSE;
m_pN = 0;
}
m_p[m_pN].x = point.x;
m_p[m_pN++].y = point.y;
switch(pDoc->mCurrent){
case ID_BASIC_POLYGON:
if(m_pN>1){
switch(m_line_method){
case 0:
//使用selectpen,成功解决粗线问题
//CPen pen;
//if(m_pN==2)//初始化画笔！只能做一次！！！
//{
pen.CreatePen(PS_SOLID,m_line_width,RGB(iRed,iGreen,iBlue));
dc2.SelectObject(pen);
//}
dc2.MoveTo(m_p[m_pN-2]);
dc2.LineTo(m_p[m_pN-1]);
break;
case 1:
for (i=0;imCurrent){
case ID_BASIC_POLYGON:
if(m_pN>1){
switch(m_line_method)
{
case 1:
dc.lineDDA(m_p[0].x, m_p[0].y,
m_p[m_pN-1].x, m_p[m_pN-1].y, RGB(iRed,iGreen,iBlue));
break;
case 2:
w1=w;h1=h;
myinit();
// glPushMatrix();
// glTranslatef(-0.5f, -0.7f, 0.0f);
glLoadIdentity();
glLineWidth(m_line_width); //放大的尺寸
r=(double)iRed/255;g=(double)iGreen/255;b=(double)iBlue/255;
glColor3f(r,g,b);
glBegin(GL_LINE_STRIP);
//失败原因：使用x,y整数坐标，无法在屏幕上正确显示
for(i=0;imCurrent=ID_BASIC_POLYGON;
}
void CMyGraphicsView::OnBasicLines()
{
CClientDC dc(this);
CMyGraphicsDoc *doc=GetDocument();
doc->mCurrent=ID_BASIC_LINES;
}
void CMyGraphicsView::OnMagicCircle()
{
CMyGraphicsDoc *doc=GetDocument();
doc->mCurrent=ID_MAGIC_CIRCLE;
CClientDC dc2(this);
dc2.TextOut(2,2,"Please click to draw a magic circle");
}
void CMyGraphicsView::DrawMagicCircle()
{
//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
HWND hWnd=GetSafeHwnd();
HDC hDC =::GetDC(hWnd);
wglMakeCurrent(hDC, hglrc);
double r,g,b,corner;
int i;
i=0;
corner=0;
glBegin(GL_POLYGON);
for (r=0.0;r<=1;r=r+0.05)
for (g=0.0;g<=1;g=g+0.05)
for (b=0.0;b<=1;b=b+0.05)
{
switch((int)(corner/3.1415926*180))
{
case 0:
glColor3f(0,0,1);
glNormal3f(0,0,1);
break;
case 60:
glColor3f(0,1,1);
glNormal3f(1,0,0);
break;
case 120:
glColor3f(0,1,0);
glNormal3f(0,-1,0);
break;
case 180:
glColor3f(1,1,0);
glNormal3f(0,0,-1);
break;
case 240:
glColor3f(1,0,0);
glNormal3f(0,1,0);
break;
case 300:
glColor3f(1,0,1);
glNormal3f(-1,0,0);
break;
}
// glVertex2f((100*sin(corner))/w*2,(100*cos(corner))*w/2);
glVertex2f(sin(corner),cos(corner));
corner=corner+3.1415926/4000;
//corner=corner+0.1;
}
glEnd();
glFlush();
wglMakeCurrent(NULL, NULL);
SwapBuffers(hDC);
}
void CMyGraphicsView::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
CMyGraphicsDoc *pDoc=GetDocument();
CClientDC dc(this);
// SetCursor(m_HCursor);
dc.SetROP2(R2_NOT);
CPen pen2;
pen2.CreatePen(PS_INSIDEFRAME ,1,RGB(iRed,iGreen,iBlue));
dc.SelectObject(pen2);
switch(pDoc->mCurrent)
{
case ID_BASIC_LINES:
//linedda fail to functoin !!!,use flag to have a good draw
if(m_Flag==1)
{
//dc.LineTo( m_pPrev.x, m_pPrev.y);
//dc.LineTo(m_p[0].x, m_p[0].y, point.x, point.y,RGB(1,0,0));
//dc.LineTo( point.x, point.y);
dc.Ellipse(m_p[0].x, m_p[0].y, m_pPrev.x, m_pPrev.y);
dc.Ellipse(m_p[0].x, m_p[0].y, point.x, point.y);
}
else
if(m_Flag==0)
//the first point
{
dc.Ellipse(m_p[0].x, m_p[0].y, m_p[0].x, m_p[0].y);
m_Flag=1;
}
break;
}
m_pPrev=point;
CView::OnMouseMove(nFlags, point);
}
void CMyGraphicsView::OnLButtonUp(UINT nFlags, CPoint point)
{
CMyGraphicsDoc *pDoc=GetDocument();
switch(pDoc->mCurrent)
{
case ID_BASIC_LINES:
m_Flag=-1;
m_pN=0;
}
CView::OnLButtonUp(nFlags, point);
}
void CMyGraphicsView::OnFractalsTree()
{
// TODO: Add your command handler code here
OneTree(300,40,300,410);
}
void SingleTree(int x1,int y1,int x2,int y2)
{
;
}
void CMyGraphicsView::OneTree(double x1, double y1, double x2, double y2)
{
double xa,ya,xb,yb,xc,yc,xd,yd,a1,a2,vx,vy,factor;
// 1
// d b
// a c
// 2
//a1:the angle for the sub trees
a1=3.14/5.5;
a2=0-a1;
//the value to control when to termine
factor=0.15;
xa=(x1-x2)/3+x2;ya=(y1-y2)/3+y2;
xb=(x1-x2)/3*2+x2;yb=(y1-y2)/3*2+y2;
//count the right tree c
vx=xb-xa;vy=yb-ya;
//rotate
xc=cos(a2)*vx+sin(a2)*vy+xa;
yc=-1*sin(a2)*vx+cos(a2)*vy+ya;
//count the left tree d
vx=x1-xb;vy=y1-yb;
//rotate
xd=cos(a1)*vx+sin(a1)*vy+xb;
yd=-1*sin(a1)*vx+cos(a1)*vy+yb;
CGraph dc(this);
dc.lineDDA(x1,y1,x2,y2,RGB(1,0,0));
dc.lineDDA(xb,yb,xd,yd,RGB(1,0,0));
dc.lineDDA(xa,ya,xc,yc,RGB(1,0,0));
if(abs(x1-xb)>factor ||abs(y1-yb)>factor)
OneTree(x1,y1,xb,yb);
if(abs(xa-xb)>factor ||abs(ya-yb)>factor)
OneTree(xb,yb,xa,ya);
if(abs(xd-xb)>factor ||abs(yd-yb)>factor)
OneTree(xd,yd,xb,yb);
if(abs(xc-xa)>factor ||abs(yc-ya)>factor)
OneTree(xc,yc,xa,ya);
if(abs(x2-xa)>factor ||abs(y2-ya)>factor)
OneTree(xa,ya,x2,y2);
}