translucenceview.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 127 行

// translucenceView.cpp : CtranslucenceView 类的实现
//

#include "stdafx.h"
#include "translucence.h"

#include "translucenceDoc.h"
#include "translucenceView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CtranslucenceView

IMPLEMENT_DYNCREATE(CtranslucenceView, CView)

BEGIN_MESSAGE_MAP(CtranslucenceView, CView)
	// 标准打印命令
	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()

// CtranslucenceView 构造/析构

CtranslucenceView::CtranslucenceView()
{
	// TODO: 在此处添加构造代码

}

CtranslucenceView::~CtranslucenceView()
{
}

BOOL CtranslucenceView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或
	// 样式

	return CView::PreCreateWindow(cs);
}

// CtranslucenceView 绘制

void CtranslucenceView::OnDraw(CDC* pDC)
{
	CtranslucenceDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	using namespace Gdiplus;
	Graphics graphics(pDC->m_hDC);
	//p1是不透明画笔，p2是半透明画笔
	Pen p1(Color(255,255,0,0),40);
	Pen p2(Color(128,255,0,0),40);
	graphics.DrawLine(&p1,50,20,50,150);	
	graphics.DrawLine(&p2,100,20,100,150);
	//启用高质量修正效果
	graphics.SetCompositingQuality (CompositingQualityHighQuality);
	graphics.DrawLine(&p2,150,20,150,150);
	//sb1是不透明的实心画刷，sb2是半透明的实心画刷
	SolidBrush sb1(Color(255,255,255,0));
	SolidBrush sb2(Color(128,255,255,0));
	graphics.FillRectangle (&sb1,200,20,120,50);
	graphics.FillRectangle (&sb2,200,80,120,50);
	//启用珈玛修正效果
	graphics.SetCompositingQuality (CompositingQualityGammaCorrected);
	graphics.FillRectangle (&sb2,200,140,120,50);
	//hb1是不透明的剖面线画刷，hb2是半透明的剖面线画刷
	HatchBrush hb1(HatchStyleHorizontal,Color(255,0,255,0),Color(255,255,0,255));
	HatchBrush hb2(HatchStyleCross,Color(128,0,255,0),Color(128,255,0,255));
	graphics.FillEllipse (&hb1,330,20,100,50);
	graphics.FillEllipse (&hb2,330,80,100,50);
	//启用假定线性值修正效果
	graphics.SetCompositingQuality (CompositingQualityAssumeLinear);
	graphics.FillEllipse (&hb2,330,140,100,50);


	// TODO: 在此处为本机数据添加绘制代码
}


// CtranslucenceView 打印

BOOL CtranslucenceView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默认准备
	return DoPreparePrinting(pInfo);
}

void CtranslucenceView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印前添加额外的初始化
}

void CtranslucenceView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 打印后添加清除过程
}


// CtranslucenceView 诊断

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

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

CtranslucenceDoc* CtranslucenceView::GetDocument() const // 非调试版本是内联的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CtranslucenceDoc)));
	return (CtranslucenceDoc*)m_pDocument;
}
#endif //_DEBUG


// CtranslucenceView 消息处理程序