gradientview.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 114 行

// gradientView.cpp : CgradientView 类的实现
//

#include "stdafx.h"
#include "gradient.h"

#include "gradientDoc.h"
#include "gradientView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CgradientView

IMPLEMENT_DYNCREATE(CgradientView, CView)

BEGIN_MESSAGE_MAP(CgradientView, 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()

// CgradientView 构造/析构

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

}

CgradientView::~CgradientView()
{
}

BOOL CgradientView::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);
}

// CgradientView 绘制

void CgradientView::OnDraw(CDC* pDC)
{
	CgradientDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;
	using namespace Gdiplus;
	Graphics graphics(pDC->m_hDC);
	Point points[]={Point(75,0),Point(100,50), Point(150,50),Point(112,75), Point(150,150),Point(75,100), Point(0,150),Point(37,75), Point(0,50),Point(50,50)};
	GraphicsPath path;
	path.AddLines(points,10);
	//创建轨迹梯度画刷
	PathGradientBrush pgBrush(&path);
	pgBrush.SetCenterColor(Color(255,255,0,0));
	//设置各点的颜色
	Color colors[]={Color(255,0,0,0), Color(255,0,255,0), Color(255,0,0,255), Color(255,255,255,255), Color(255,0,0,0), Color(255,0,255,0), Color(255,0,0,255), Color(255,255,255,255), Color(255,0,0,0), Color(255,0,255,0)};
	int count=10;
	pgBrush.SetSurroundColors(colors,&count);
	graphics.FillPath(&pgBrush,&path);


	// TODO: 在此处为本机数据添加绘制代码
}


// CgradientView 打印

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

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

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


// CgradientView 诊断

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

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

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


// CgradientView 消息处理程序