ch11demo2view.cpp

零基础学Visual.C....教案PPT.随书光盘-452M.zip

// Ch11Demo2View.cpp : implementation of the CCh11Demo2View class
//

#include "stdafx.h"
#include "Ch11Demo2.h"


#include "Ch11Demo2Doc.h"
#include "Ch11Demo2View.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define WM_SET_COLOR WM_USER+100//自定义消息
/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View

IMPLEMENT_DYNCREATE(CCh11Demo2View, CView)

BEGIN_MESSAGE_MAP(CCh11Demo2View, CView)
	//{{AFX_MSG_MAP(CCh11Demo2View)
	ON_WM_RBUTTONDOWN()
	ON_MESSAGE(WM_SET_COLOR,OnSetColor) 
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View construction/destruction

CCh11Demo2View::CCh11Demo2View()
{
	// TODO: add construction code here
	r=128;
	g=0;
	b=0;
}

CCh11Demo2View::~CCh11Demo2View()
{
}

BOOL CCh11Demo2View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	pDialog = new CBrushColorDlg(this);							
   //Check if new succeeded and we got a valid pointer to a dialog object
   if(pDialog != NULL)
   {
	  BOOL ret = pDialog->Create(IDD_DIALOG1,this);				//创建非模态对话框
      if(!ret)   											//创建失败
      AfxMessageBox("Error creating Dialog");
	
   }
   else
      AfxMessageBox("Error Creating Dialog Object");
	

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View drawing

void CCh11Demo2View::OnDraw(CDC* pDC)
{
	CCh11Demo2Doc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	CBrush mybrush(RGB(r,g,b));			//生成刷子
	CBrush *oldbrush;								//生成刷子指针
	oldbrush=pDC->SelectObject(&mybrush);				//把刷子选入设备环境
	pDC->Ellipse(10,10,200,120);//绘制椭圆
	pDC->SelectObject(oldbrush);						//恢复原有刷子
}

/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View printing

BOOL CCh11Demo2View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CCh11Demo2View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CCh11Demo2View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View diagnostics

#ifdef _DEBUG
void CCh11Demo2View::AssertValid() const
{
	CView::AssertValid();
}

void CCh11Demo2View::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CCh11Demo2Doc* CCh11Demo2View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCh11Demo2Doc)));
	return (CCh11Demo2Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CCh11Demo2View message handlers

void CCh11Demo2View::OnRButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	 pDialog->ShowWindow(SW_HIDE);						//隐藏对话框
	  CRect dlgRect;
	  pDialog->GetWindowRect(&dlgRect);				//获取对话框窗口大小
	  ClientToScreen(&point);//将鼠标位置转换为屏幕坐标
	  //移动对话框窗口
	  pDialog->MoveWindow(point.x, point.y,dlgRect.Width(),dlgRect.Height());
	  //将当前画刷的值赋予对话框变量
	  pDialog->m_blue=b;
	  pDialog->m_green=g;
	  pDialog->m_red=r;
	  pDialog->UpdateData(false);
      pDialog->ShowWindow(SW_SHOW);						//显示对话框	
	CView::OnRButtonDown(nFlags, point);
}

void CCh11Demo2View::OnSetColor(WPARAM wP,LPARAM lP)
{
	//获取非模态对话框设置的颜色值
	r=pDialog->m_red;
	g=pDialog->m_green;
	b=pDialog->m_blue;
	Invalidate();//更新视图
}