drawtestview.cpp

《VC++ 编程技巧与示例 .rar》各个示例代码绝对可用

// DrawTestView.cpp : implementation of the CDrawTestView class
//

#include "stdafx.h"
#include "DrawTest.h"

#include "DrawTestDoc.h"
#include "DrawTestView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView

IMPLEMENT_DYNCREATE(CDrawTestView, CView)

BEGIN_MESSAGE_MAP(CDrawTestView, CView)
	//{{AFX_MSG_MAP(CDrawTestView)
	ON_COMMAND(ID_TEST_FONT, OnTestFont)
	ON_COMMAND(ID_TEST_LINE, OnTestLine)
	ON_COMMAND(ID_TEST_SHAPES, OnTestShapes)
	ON_COMMAND(ID_CHANGE_CLR, OnChangeClr)
	ON_COMMAND(ID_CHANGE_FONT, OnChangeFont)
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView construction/destruction

CDrawTestView::CDrawTestView()
{
	// TODO: add construction code here
	//默认为画线：
	m_CurTest=0;
}

CDrawTestView::~CDrawTestView()
{
}

BOOL CDrawTestView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView drawing

void CDrawTestView::OnDraw(CDC* pDC)
{
	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	CPen pen,*open;
	pen.CreatePen(PS_SOLID,3,pDoc->color);
	open=pDC->SelectObject(&pen);
	//画水平线：
	pDC->MoveTo(5,5);
	pDC->LineTo(105,5);
	pDC->SetTextColor(pDoc->color);
	pDC->TextOut(110,5,"X坐标");
	//画垂直线：
	pDC->MoveTo(5,5);
	pDC->LineTo(5,105);
	pDC->TextOut(5,110,"Y坐标");
	pDC->SelectObject(open);
	pen.DeleteObject();
	switch(m_CurTest)
	{
	case 0:
		{
			DrawLine(pDC);
			break;
		}
	case 1:
		{
			DrawShape(pDC);
			break;
		}
	case 2:
		{
			DrawFont(pDC);
			break;
		}
	}
}

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView printing

BOOL CDrawTestView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CDrawTestView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CDrawTestView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView diagnostics

#ifdef _DEBUG
void CDrawTestView::AssertValid() const
{
	CView::AssertValid();
}

void CDrawTestView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CDrawTestDoc* CDrawTestView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDrawTestDoc)));
	return (CDrawTestDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CDrawTestView message handlers

void CDrawTestView::OnTestLine() 
{
	// TODO: Add your command handler code here
	m_CurTest=0;	
	Invalidate();
}

void CDrawTestView::OnTestShapes() 
{
	// TODO: Add your command handler code here
	m_CurTest=1;
	Invalidate();
}

void CDrawTestView::OnTestFont() 
{
	// TODO: Add your command handler code here
	m_CurTest=2;	
	Invalidate();
}

void CDrawTestView::DrawLine(CDC *pDC)
{
	UINT i,pos,gap,length;
	CRect rc;
	GetClientRect(&rc);
	pos=20;
	gap=20;
	length=rc.Width()-40;
	CPen pen,*open;
	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	for(i=0;i<5;i++)
	{
		pen.CreatePen(i,1,pDoc->color);
		open=pDC->SelectObject(&pen);
		pDC->MoveTo(pos,pos+i*gap);
		pDC->LineTo(pos+length,pos+i*gap);
		pDC->SelectObject(open);
		pen.DeleteObject();
	}
}

void CDrawTestView::DrawShape(CDC *pDC)
{
	UINT i;
	UINT pos,gap,width;
	CRect rc;
	GetClientRect(&rc);
	pos=20;
	gap=35;
	width=rc.Width()-40;

	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	CBrush br,*obr;
	for(i=0;i<6;i++)
	{
		br.CreateHatchBrush(i,pDoc->color);
		obr=pDC->SelectObject(&br);
		pDC->RoundRect(pos,pos+i*gap,pos+width,pos+i*gap+30,pos+20,pos+20);
		pDC->SelectObject(obr);
		br.DeleteObject();
	}

	br.CreateSolidBrush(pDoc->color);
	obr=pDC->SelectObject(&br);
	pDC->RoundRect(pos,pos+i*gap,pos+width,pos+i*gap+30,pos+20,pos+20);
	pDC->SelectObject(obr);
	br.DeleteObject();
}

void CDrawTestView::DrawFont(CDC *pDC)
{
	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
    // Create and display eight example fonts.
	CRect rc;
	GetClientRect(&rc);
    CFont font;
    font.CreateFontIndirect(&pDoc->logFont);
    CFont* oldFont = pDC->SelectObject(&font);
	pDC->SetTextAlign(TA_CENTER);
	pDC->SetTextColor(pDoc->color);
    pDC->TextOut(rc.Width()/2,rc.Height()/2, "Hellow 即 你好.....");
	pDC->SelectObject(oldFont);
	font.DeleteObject();
}

void CDrawTestView::OnChangeClr() 
{
	// TODO: Add your command handler code here
	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	CColorDialog cd;
	if(cd.DoModal()==IDOK)
	{
		pDoc->color=cd.GetColor();
		Invalidate();
	}
}

void CDrawTestView::OnChangeFont() 
{
	// TODO: Add your command handler code here
	CDrawTestDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	CFontDialog fd;
	if(fd.DoModal()==IDOK)
	{
		m_CurTest=2;	
		fd.GetCurrentFont(&pDoc->logFont);
		Invalidate();
	}
}