linestyledlg.cpp

Visual c++.程序设计培训教程

// LineStyleDlg.cpp : implementation file
//

#include "stdafx.h"
#include "2DCAD.h"
#include "LineStyleDlg.h"
#include "MainFrm.h"
#include "2DCadDoc.h"
#include "2DCadView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CLineStyleDlg dialog


CLineStyleDlg::CLineStyleDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLineStyleDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLineStyleDlg)
	m_nLineStyle = 0;
	//}}AFX_DATA_INIT
}


void CLineStyleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLineStyleDlg)
	DDX_Control(pDX, IDC_COMBO_LINESTYLE, m_ComboBox);
	DDX_CBIndex(pDX, IDC_COMBO_LINESTYLE, m_nLineStyle);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLineStyleDlg, CDialog)
	//{{AFX_MSG_MAP(CLineStyleDlg)
	ON_CBN_SELCHANGE(IDC_COMBO_LINESTYLE, OnSelchangeComboLinestyle)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLineStyleDlg message handlers

BOOL CLineStyleDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_ComboBox.AddString("空画笔");//增加一个列表项
	m_ComboBox.SetCurSel(0);	//设置当前选择为第一项
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CLineStyleDlg::OnSelchangeComboLinestyle() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);   // 促使对话框交换数据
	int   linestyle;    // 记录线型的临时变量

	switch(m_nLineStyle)// 使用switch-case语句来处理用户的选择
	{
	case 1:  // 点线
		linestyle = PS_DOT;
		break;
	case 2:  // 虚线
		linestyle = PS_DASH;
		break;
	case 3:  // 点划线
		linestyle = PS_DASHDOT;
		break;
	case 4:  // 双点划线
		linestyle = PS_DASHDOTDOT;
		break;
	case 5:  // 空画笔
		linestyle = PS_NULL;
		break;
	default: //其它情况都为实线
		linestyle = PS_SOLID;
		break;
	}

	//将临时变量赋值给视图类的成员变量保存起来
	CMainFrame * pframe = (CMainFrame *)GetParent();//获取框架窗口指针
	CMy2DCADView * pview = (CMy2DCADView * )pframe->GetActiveView();//获取视图窗口指针
	
	pview->m_nLineStyle = linestyle;//访问视图类的成员变量并赋值
}