📄 13_3dlg.cpp
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// 13_3Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "13_3.h"
#include "13_3Dlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMy13_3Dlg dialog
CMy13_3Dlg::CMy13_3Dlg(CWnd* pParent /*=NULL*/)
: CDialog(CMy13_3Dlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMy13_3Dlg)
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMy13_3Dlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMy13_3Dlg)
DDX_Control(pDX, IDC_RED_EDIT, m_Red_Edit);
DDX_Control(pDX, IDC_BLUE_EDIT, m_Blue_Edit);
DDX_Control(pDX, IDC_GREEN_EDIT, m_Green_Edit);
DDX_Control(pDX, IDC_RED_SCROLLBAR, m_Red_ScrollBar);
DDX_Control(pDX, IDC_GREEN_SCROLLBAR, m_Green_ScrollBar);
DDX_Control(pDX, IDC_BLUE_SCROLLBAR, m_Blue_ScrollBar);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMy13_3Dlg, CDialog)
//{{AFX_MSG_MAP(CMy13_3Dlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_WM_VSCROLL()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMy13_3Dlg message handlers
BOOL CMy13_3Dlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// 加入代码.
m_Red_ScrollBar.SetScrollRange(0,255); //设定滚动条的范围.
m_Green_ScrollBar.SetScrollRange(0,255);
m_Blue_ScrollBar.SetScrollRange(0,255);
m_Red_ScrollBar.SetScrollPos(100);
m_Green_ScrollBar.SetScrollPos(100); //设定滚动条的当前位置.
m_Blue_ScrollBar.SetScrollPos(100);
char sPos[10]; //将当前滚动条的位置输出.
itoa(m_Red_ScrollBar.GetScrollPos(),sPos,10);//当前位置为100.
m_Red_Edit.SetWindowText(sPos);
itoa(m_Green_ScrollBar.GetScrollPos(),sPos,10);
m_Green_Edit.SetWindowText(sPos);
itoa(m_Blue_ScrollBar.GetScrollPos(),sPos,10);
m_Blue_Edit.SetWindowText(sPos);
//结束代码.
return TRUE; // return TRUE unless you set the focus to a control
}
void CMy13_3Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CMy13_3Dlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CMy13_3Dlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
//滚动条处理函数.
void CMy13_3Dlg::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
// 加入代码.
char sPos[10]; //记录滚动条位置的字符数组.
int iRedNowPos,iBlueNowPos,iGreenNowPos; //记录滚动条的整形数.
iRedNowPos=m_Red_ScrollBar.GetScrollPos(); //获得滚动条当前位置.
iGreenNowPos=m_Green_ScrollBar.GetScrollPos();
iBlueNowPos=m_Blue_ScrollBar.GetScrollPos();
if(pScrollBar==&m_Red_ScrollBar) //对红滚动条进行操作.
{
switch(nSBCode)
{
case SB_THUMBTRACK: //拖动滚动条
m_Red_ScrollBar.SetScrollPos(nPos); //设定滚动条位置.
iRedNowPos=nPos;
break;
case SB_LINEDOWN: //按向下按钮.
iRedNowPos=m_Red_ScrollBar.GetScrollPos();//得到当前滚动条位置.
iRedNowPos=iRedNowPos+1; //位置量+1
if(iRedNowPos>255)
iRedNowPos=255;
break;
case SB_LINEUP: //按向上按钮.
iRedNowPos=m_Red_ScrollBar.GetScrollPos();//得到当前滚动条位置.
iRedNowPos=iRedNowPos-1; //位置量-1
if(iRedNowPos<0)
iRedNowPos=0;
break;
case SB_PAGEDOWN: //点击向上按钮和滑动块之间的区域.
iRedNowPos=m_Red_ScrollBar.GetScrollPos();//得到当前滚动条位置.
iRedNowPos=iRedNowPos+10; //位置量+10
if(iRedNowPos>255)
iRedNowPos=255;
break;
case SB_PAGEUP: //点击向下按钮和滑动块之间的区域.
iRedNowPos=m_Red_ScrollBar.GetScrollPos();//得到当前滚动条位置.
iRedNowPos=iRedNowPos-10; //位置量-10
if(iRedNowPos<0)
iRedNowPos=0;
break;
}
}
if(pScrollBar==&m_Green_ScrollBar) //对绿滚动条进行操作.
{
switch(nSBCode)
{
case SB_THUMBTRACK: //拖动滑块.
m_Green_ScrollBar.SetScrollPos(nPos);//设定滚动条位置.
iGreenNowPos=nPos;
break;
case SB_LINEDOWN: //向下按钮.
iGreenNowPos=m_Green_ScrollBar.GetScrollPos();//得到当前滚动条位置.
iGreenNowPos=iGreenNowPos+1; //位置量+1
if(iGreenNowPos>255)
iGreenNowPos=255;
break;
case SB_LINEUP: //向上按钮
iGreenNowPos=m_Green_ScrollBar.GetScrollPos();
iGreenNowPos=iGreenNowPos-1; //位置量-1
if(iGreenNowPos<0)
iGreenNowPos=0;
break;
case SB_PAGEDOWN: //点击向上按钮和滑动块之间的区域
iGreenNowPos=m_Green_ScrollBar.GetScrollPos();
iGreenNowPos=iGreenNowPos+10; //位置量+10
if(iGreenNowPos>255)
iGreenNowPos=255;
break;
case SB_PAGEUP: //点击向下按钮和滑动块之间的区域
iGreenNowPos=m_Green_ScrollBar.GetScrollPos();
iGreenNowPos=iGreenNowPos-10; //位置量-10
if(iGreenNowPos<0)
iGreenNowPos=0;
break;
}
}
if(pScrollBar==&m_Blue_ScrollBar) //对蓝色滚动条进行操作.
{
switch(nSBCode)
{
case SB_THUMBTRACK: //拖动滑块.
m_Blue_ScrollBar.SetScrollPos(nPos);
iBlueNowPos=nPos;
break;
case SB_LINEDOWN: //向上按钮
iBlueNowPos=m_Blue_ScrollBar.GetScrollPos();
iBlueNowPos=iBlueNowPos+1;
if(iBlueNowPos>255)
iBlueNowPos=255;
break;
case SB_LINEUP: //向下按钮
iBlueNowPos=m_Blue_ScrollBar.GetScrollPos();
iBlueNowPos=iBlueNowPos-1;
if(iBlueNowPos<0)
iBlueNowPos=0;
break;
case SB_PAGEDOWN: //点击向上按钮和滑动块之间的区域
iBlueNowPos=m_Blue_ScrollBar.GetScrollPos();
iBlueNowPos=iBlueNowPos+10;
if(iBlueNowPos>255)
iBlueNowPos=255;
break;
case SB_PAGEUP: //点击向下按钮和滑动块之间的区域
iBlueNowPos=m_Blue_ScrollBar.GetScrollPos();
iBlueNowPos=iBlueNowPos-10;
if(iBlueNowPos<0)
iBlueNowPos=0;
break;
}
}
//设定滑块位置和在编辑框中显示.
m_Red_ScrollBar.SetScrollPos(iRedNowPos);
itoa(iRedNowPos,sPos,10);
m_Red_Edit.SetWindowText(sPos);
m_Green_ScrollBar.SetScrollPos(iGreenNowPos);
itoa(iGreenNowPos,sPos,10);
m_Green_Edit.SetWindowText(sPos);
m_Blue_ScrollBar.SetScrollPos(iBlueNowPos);
itoa(iBlueNowPos,sPos,10);
m_Blue_Edit.SetWindowText(sPos);
//图像输出.
CDC *pDC=GetDC(); //得到设备环境指针.
CBrush newBrush; //定义新画刷.
CPen newPen; //定义新画笔.
newBrush.CreateSolidBrush(RGB(iRedNowPos,iGreenNowPos,iBlueNowPos));
newPen.CreatePen(PS_SOLID,1,RGB(iRedNowPos,iGreenNowPos,iBlueNowPos));
pDC->SelectObject(&newPen); //选入新画笔.
pDC->SelectObject(&newBrush); //选入新画刷.
pDC->Ellipse(70,30,170,200); //画椭圆.
ReleaseDC(pDC);
//代码结束.
}
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