📄 chinaviewview.cpp
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// ChinaViewView.cpp : implementation of the CChinaViewView class
//
#include "stdafx.h"
#include "ChinaView.h"
#include "BaseClass.h" //添加基类
#include "math.h"
#include "MainFrm.h"
#include "ChinaViewDoc.h"
#include "ChinaViewView.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView
IMPLEMENT_DYNCREATE(CChinaViewView, CView)
BEGIN_MESSAGE_MAP(CChinaViewView, CView)
//{{AFX_MSG_MAP(CChinaViewView)
ON_WM_MOUSEMOVE()
ON_COMMAND(ID_MAP_ZOOMIN, OnMapZoomin)
ON_COMMAND(ID_MAP_ZOOMOUT, OnMapZoomout)
ON_COMMAND(ID_MAP_PAN, OnMapPan)
ON_COMMAND(ID_MAP_FULLVIEW, OnMapFullview)
ON_UPDATE_COMMAND_UI(ID_MAP_ZOOMIN, OnUpdateMapZoomin)
ON_UPDATE_COMMAND_UI(ID_MAP_ZOOMOUT, OnUpdateMapZoomout)
ON_UPDATE_COMMAND_UI(ID_MAP_PAN, OnUpdateMapPan)
ON_COMMAND(ID_VIEW_FOOTNOTE, OnViewFootnote)
ON_UPDATE_COMMAND_UI(ID_VIEW_FOOTNOTE, OnUpdateViewFootnote)
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
//}}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()
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView construction/destruction
CChinaViewView::CChinaViewView()
{
dc = new CDC;
bitmap = new CBitmap;
Max_X = Min_X = 400;
Max_Y = Min_Y = 200;
times = 1; //缩放的倍数
buttomdown = FALSE;
footnote = TRUE;
Screenwidth = ::GetSystemMetrics(SM_CXSCREEN); // 获取屏幕宽度
Screenheight = ::GetSystemMetrics(SM_CYSCREEN); // 获取屏幕高度
h_Pan = AfxGetApp()->LoadCursor(IDC_PAN); //加载光标
h_ZoomIn = AfxGetApp()->LoadCursor(IDC_ZOOMIN);
h_ZoomOut = AfxGetApp()->LoadCursor(IDC_ZOOMOUT);
h_Arrow = AfxGetApp()->LoadStandardCursor(IDC_ARROW);
}
CChinaViewView::~CChinaViewView()
{
delete dc;
delete bitmap;
m_object.RemoveAll();
}
BOOL CChinaViewView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView drawing
void CChinaViewView::OnDraw(CDC* pDC)
{
CChinaViewDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// ReadDataPoint();
// ReadDataProvince();
ClearMemScreen(pDC);
DrawMapFromZB1(pDC);
if (footnote)
{
DrawMapFromZJ1(pDC);
}
}
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView printing
BOOL CChinaViewView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CChinaViewView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CChinaViewView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView diagnostics
#ifdef _DEBUG
void CChinaViewView::AssertValid() const
{
CView::AssertValid();
}
void CChinaViewView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CChinaViewDoc* CChinaViewView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CChinaViewDoc)));
return (CChinaViewDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CChinaViewView message handlers
void CChinaViewView::ReadDataPoint()
{
CString filename = _T("CHINA.ZB1");
FILE *fp;
fp = fopen(filename,"r");
int i;
while (!feof(fp))
{
CCode *code;
code = new CCode;
CDoublePoint *data;
fscanf(fp,"%d %d %d %d\n",&code->code1,&code->code2,&code->code3,&code->pointNumber);
for (i=0;i<code->pointNumber;i++)
{
data = new CDoublePoint;
fscanf(fp,"%lf %lf\n",&data->x,&data->y);
Max_X = max(data->x,Max_X);
Max_Y = max(data->y,Max_Y);
Min_X = min(data->x,Min_X);
Min_Y = min(data->y,Min_Y);
code->m_pointArray.Add(data);
}
m_object.Add(code);
}
fclose(fp);
}
//***********************************************
//函数名：DrawMapFromZB1
//功能：将ZB1文件中的数据显示在客户区
//参数说明：pDC CDC类指针，用于绘制多边形
//返回值：无
//***********************************************
void CChinaViewView::DrawMapFromZB1(CDC *pDC)
{
for (int i=0;i<m_object.GetSize();i++)
{
CCode *pcode = m_object.GetAt(i);
point = new CPoint[pcode->pointNumber];
for (int j=0;j<pcode->pointNumber;j++)
{
CDoublePoint *temp = pcode->m_pointArray.GetAt(j);
point[j].x = (long)((temp->x+8)*times-xmin);
point[j].y = (long)(ymax - temp->y*times);
}
// 图廓线及岛屿(大于500者为插图)
if (pcode->code1==10||pcode->code1==40||pcode->code1==540)
{
FillPolygon(pDC,point,pcode->pointNumber,HS_DIAGCROSS,
RGB(128,128,0),PS_SOLID,1,RGB(255,255,255));
}
// 国界内普染
else if (pcode->code1==20||pcode->code1==50||pcode->code1==550||pcode->code1==520)
{
FillPolygon(pDC,point,pcode->pointNumber,10,
RGB(82,154,16),PS_SOLID,1,RGB(120,120,0));
}
// 海域普染
else if (pcode->code1==30||pcode->code1==530)
{
FillPolygon(pDC,point,pcode->pointNumber,10,
RGB(0,128,255),PS_SOLID,1,RGB(120,120,0));
}
// 海域国界线
else if (pcode->code1==60||pcode->code1==560)
{
DrawLine(pDC,point,pcode->pointNumber,PS_INSIDEFRAME,2,RGB(255,0,0));
}
// 其他省界
else if (pcode->code1==70||pcode->code1==570)
{
DrawLine(pDC,point,pcode->pointNumber,PS_INSIDEFRAME,1,RGB(0,0,120));
}
// 香港岛
else if (pcode->code1==80||pcode->code1==580)
{
FillPolygon(pDC,point,pcode->pointNumber,10,
RGB(255,128,255),PS_SOLID,1,RGB(120,120,0));
}
// 河流
else if (pcode->code1==120)
{
DrawLine(pDC,point,pcode->pointNumber,PS_SOLID,3,RGB(0,0,255));
}
// 插图廓
else if (pcode->code1==600)
{
DrawLine(pDC,point,pcode->pointNumber,PS_SOLID,2,RGB(255,0,0));
}
// 北京
else if (pcode->code1==101)
{
DrawStar(pDC,point,pcode->pointNumber,RGB(228,0,50));
}
// 香港、澳门
else if (pcode->code1==100)
{
DrawCircle(pDC,point,pcode->pointNumber,4,RGB(0,255,64));
}
if (footnote)//选择显示省会城市
{
// 省会城市
if (pcode->code1==90||pcode->code1==590)
{
DrawCircle(pDC,point,pcode->pointNumber,5,RGB(255,0,0));
}
}
delete []point;
}
}
//***********************************************
//函数名：FillPolygon
//功能：画多边形并填充
//参数说明：pDC CDC类指针，用于绘制多边形
// point 存放多边形数据的数组
// nCount 多边形数组的长度
// index 填充模式 10：表示实填充
// color1 填充颜色
// penStyle 画笔形式
// width 画笔线宽
// color2 画笔颜色
//返回值：无
//***********************************************
void CChinaViewView::FillPolygon(CDC *pDC, LPPOINT point, int nCount, int index, COLORREF color1, int penStyle, int width, COLORREF color2)
{
CBrush *newBrush;
CBrush *OldBrush;
CPen *newPen;
CPen *OldPen;
if (index == 10)
{
newBrush = new CBrush(color1);
OldBrush = pDC->SelectObject(newBrush); //设置当前画刷并将原来的画刷返回到OldBrush中
newPen = new CPen(penStyle,width,color2);
OldPen = pDC->SelectObject(newPen);
pDC->Polygon(&point[0],nCount); //填充多边形
pDC->SelectObject(OldBrush); //将画刷还原成原来的画刷
pDC->SelectObject(OldPen);
}
else
{
COLORREF color;
newBrush = new CBrush();
newPen = new CPen(penStyle,width,color2);
//设置当前背景颜色，返回前一次的背景颜色存放在color中
color = pDC->SetBkColor(color2);
OldPen = pDC->SelectObject(newPen);
newBrush->CreateHatchBrush(index,color1); //将画刷设置成index格式
OldBrush = pDC->SelectObject(newBrush);
pDC->Polygon(&point[0],nCount);
pDC->SelectObject(OldBrush);
pDC->SelectObject(OldPen);
pDC->SetBkColor(color); //恢复原来的背景颜色
}
delete newBrush; //释放新建的画刷
delete newPen;
}
//***********************************************
//函数名：DrawLine
//功能：画线
//参数说明：pDC CDC类指针，用于绘制多边形
// point 存放多边形数据的数组
// nCount 多边形数组的长度
// penStyle 画笔形式
// width 画笔线宽
// color 画笔颜色
//返回值：无
//***********************************************
void CChinaViewView::DrawLine(CDC *pDC, LPPOINT point, int nCount, int penStyle, int width, COLORREF color)
{
CPen *newPen;
CPen *OldPen;
newPen =new CPen(penStyle,width,color);
OldPen = pDC->SelectObject(newPen);
pDC->MoveTo(point[0].x,point[0].y);
for (int i=1;i<nCount;i++)
{
pDC->LineTo(point[i].x,point[i].y);
}
pDC->SelectObject(OldPen);
delete newPen;
}
//***********************************************
//函数名：DrawCircle
//功能：画空心圆
//参数说明：pDC CDC类指针，用于绘制多边形
// point 存放多边形数据的数组
// nCount 多边形数组的长度
// radius 圆的半径
// color 画笔颜色
//返回值：无
//***********************************************
void CChinaViewView::DrawCircle(CDC *pDC, LPPOINT point, int nCount,int radius, COLORREF color)
{
CPen *newPen;
CPen *OldPen;
newPen =new CPen(PS_SOLID,1,color);
OldPen = pDC->SelectObject(newPen);
pDC->Ellipse(point[0].x-radius,point[0].y-radius,point[0].x+radius,point[0].y+radius);
pDC->SelectObject(OldPen);
delete newPen;
}
//***********************************************
//函数名：DrawStar
//功能：画星星表示首都位置并填充
//参数说明：pDC CDC类指针，用于绘制多边形
// point 存放多边形数据的数组
// nCount 多边形数组的长度
// color 填充颜色
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