pencolor.cpp

来自「计算机图形学实验中综合使用鼠标、菜单、橡皮条等交互技术实现直线、圆和矩形等基本图」· C++ 代码 · 共 122 行

// PenColor.cpp : implementation file
//

#include "stdafx.h"
#include "MyDraw.h"
#include "PenColor.h"
#include "MyDrawDoc.h"
#include "MyDrawView.h"
#include "afxtempl.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CPenColor dialog


CPenColor::CPenColor(CWnd* pParent /*=NULL*/)
	: CDialog(CPenColor::IDD, pParent)
{
	//{{AFX_DATA_INIT(CPenColor)
	m_nRed = 0;
	m_nBlue = 0;
	m_nGreen = 0;
	//}}AFX_DATA_INIT
}


void CPenColor::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPenColor)
	DDX_Control(pDX, IDC_SLIDER3, m_sliderGreen);
	DDX_Control(pDX, IDC_SLIDER2, m_sliderBlue);
	DDX_Control(pDX, IDC_SLIDER1, m_sliderRed);
	DDX_Slider(pDX, IDC_SLIDER1, m_nRed);
	DDX_Slider(pDX, IDC_SLIDER2, m_nBlue);
	DDX_Slider(pDX, IDC_SLIDER3, m_nGreen);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CPenColor, CDialog)
	//{{AFX_MSG_MAP(CPenColor)
	ON_WM_HSCROLL()
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPenColor message handlers

BOOL CPenColor::OnInitDialog() 
{
	CDialog::OnInitDialog();
	m_sliderRed.SetRange(0,255);
	m_sliderBlue.SetRange(0,255);
	m_sliderGreen.SetRange(0,255);
	m_nRed=m_nBlue=m_nGreen=0;
	UpdateData(FALSE);
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CPenColor::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	// TODO: Add your message handler code here and/or call default
	
	int nID=pScrollBar->GetDlgCtrlID();
	if(nID==IDC_SLIDER1){
		if(nSBCode==SB_THUMBTRACK){
			m_nRed=nPos;
		}
		
	}
	else if(nID==IDC_SLIDER2){
		if(nSBCode==SB_THUMBTRACK){
			m_nBlue=nPos;
		}
	}
	else if(nID==IDC_SLIDER3){
		if(nSBCode==SB_THUMBTRACK){
			m_nGreen=nPos;
		}
	}
	if(m_nRed<=0)m_nRed=0;
	if(m_nRed>=255)m_nRed=255;
	if(m_nBlue<=0)m_nBlue=0;
	if(m_nBlue>=255)m_nBlue=255;
	if(m_nGreen<=0)m_nGreen=0;
	if(m_nGreen>=255)m_nGreen=255;
	

	Invalidate();
	CDialog::OnHScroll(nSBCode, nPos, pScrollBar);
}

/*void CPenColor::OnOK() 
{
	// TODO: Add extra validation here
	//CMyDrawDoc* pDoc = GetDocument();
	pDoc->DocRed=m_nRed;
	pDoc->DocBlue=m_nBlue;
	pDoc->DocGreen=m_nGreen;
	CDialog::OnOK();
}*/

HBRUSH CPenColor::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	UpdateData(TRUE);
	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}