VC++_Slider自绘滑块控件

// CoolSliderDlg.cpp : implementation file // #include "stdafx.h" #include "CoolSlider.h" #include "CoolSliderDlg.h" #include "BitItem.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() ///////////////////////////////////////////////////////////////////////////// // CCoolSliderDlg dialog CCoolSliderDlg::CCoolSliderDlg(CWnd* pParent /*=NULL*/) : CDialog(CCoolSliderDlg::IDD, pParent), m_lpNormal(NULL), m_lpActive(NULL), m_lpThumb(NULL), m_hHandCur(NULL) { //{{AFX_DATA_INIT(CCoolSliderDlg) //}}AFX_DATA_INIT m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } CCoolSliderDlg::~CCoolSliderDlg() { if( m_lpNormal != NULL ) { delete m_lpNormal; m_lpNormal = NULL; } if( m_lpActive != NULL ) { delete m_lpActive; m_lpActive = NULL; } if( m_lpThumb != NULL ) { delete m_lpThumb; m_lpThumb = NULL; } } void CCoolSliderDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CCoolSliderDlg) DDX_Control(pDX, IDC_SLIDER_VERTICAL2, m_ctlVert2); DDX_Control(pDX, IDC_SLIDER_VERTICAL1, m_ctlVert1); DDX_Control(pDX, IDC_SLIDER_SHARE3, m_ctlShare3); DDX_Control(pDX, IDC_SLIDER_SHARE2, m_ctlShare2); DDX_Control(pDX, IDC_SLIDER_SHARE1, m_ctlShare1); DDX_Control(pDX, IDC_COOL_SLIDER, m_ctlSlider); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CCoolSliderDlg, CDialog) //{{AFX_MSG_MAP(CCoolSliderDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_WM_ERASEBKGND() ON_NOTIFY(NM_RELEASEDCAPTURE, IDC_COOL_SLIDER, OnReleasedcaptureCoolSlider) ON_NOTIFY(NM_OUTOFMEMORY, IDC_SLIDER1, OnOutofmemorySlider1) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CCoolSliderDlg message handlers BOOL CCoolSliderDlg::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); } } SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // m_hHandCur = this->GetSysHandCursor(); this->BuildCoolSlider(); // Build your cool-slider in simple mode... this->BuildShareSlider(); // Build your cool-slider in shared resource mode...:) this->BuildVerticalSlider(); return TRUE; } void CCoolSliderDlg::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 CCoolSliderDlg::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 CCoolSliderDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } HCURSOR CCoolSliderDlg::GetSysHandCursor() { TCHAR strWinDir[MAX_PATH] = {0}; HCURSOR hHandCursor = NULL; hHandCursor = ::LoadCursor(NULL, MAKEINTRESOURCE(32649)); // Still no cursor handle - load the WinHelp hand cursor if( hHandCursor == NULL ) { GetWindowsDirectory(strWinDir, MAX_PATH); strcat(strWinDir, _T("\\winhlp32.exe")); // This retrieves cursor #106 from winhlp32.exe, which is a hand pointer HMODULE hModule = ::LoadLibrary(strWinDir); DWORD dwErr = GetLastError(); if( hModule != NULL ) { HCURSOR hTempCur = ::LoadCursor(hModule, MAKEINTRESOURCE(106)); hHandCursor = (hTempCur != NULL) ? CopyCursor(hTempCur) : NULL; FreeLibrary(hModule); } } return hHandCursor; } void CCoolSliderDlg::BuildCoolSlider() { m_hHandCur = this->GetSysHandCursor(); ASSERT( m_hHandCur != NULL ); m_ctlSlider.SetFlipCursor(m_hHandCur); m_ctlSlider.BuildThumbItem(IDB_BITMAP_THUMB, 12,6); m_ctlSlider.BuildBackItem(IDB_BITMAP_NORMAL, IDB_BITMAP_ACTIVE); m_ctlSlider.SetTopOffset(3); m_ctlSlider.SetRange(0, 100); m_ctlSlider.SetLineSize(0); m_ctlSlider.SetPos(100); /* m_ctlVert1.SetFlipCursor(m_hHandCur); m_ctlVert1.BuildThumbItem(IDB_VERTICAL_THUMB, 12, 6); m_ctlVert1.BuildBackItem(IDB_VERTICAL_NORMAL, IDB_VERTICAL_ACTIVE); m_ctlVert1.SetLeftOffset(3); m_ctlVert1.SetRange(0, 100); m_ctlVert1.SetLineSize(0); m_ctlVert1.SetPos(50); */ } void CCoolSliderDlg::BuildShareSlider() { ASSERT( m_hHandCur != NULL ); ASSERT( m_lpActive == NULL ); ASSERT( m_lpNormal == NULL ); ASSERT( m_lpThumb == NULL ); m_lpActive = new CBitItem(IDB_BITMAP_ACTIVE, 0, 0); m_lpNormal = new CBitItem(IDB_BITMAP_NORMAL, 0, 0); m_lpThumb = new CBitItem(IDB_BITMAP_THUMB, 6, 12); m_ctlShare1.SetFlipCursor(m_hHandCur); m_ctlShare1.BuildThumbItem(m_lpThumb); m_ctlShare1.BuildBackItem(m_lpNormal, m_lpActive); m_ctlShare1.SetTopOffset(3); m_ctlShare1.SetRange(0, 100); m_ctlShare1.SetLineSize(0); m_ctlShare1.SetPos(40); m_ctlShare2.SetFlipCursor(m_hHandCur); m_ctlShare2.BuildThumbItem(m_lpThumb); m_ctlShare2.BuildBackItem(m_lpNormal, m_lpActive); m_ctlShare2.SetTopOffset(3); m_ctlShare2.SetRange(0, 100); m_ctlShare2.SetLineSize(0); m_ctlShare2.SetPos(60); m_ctlShare3.SetFlipCursor(m_hHandCur); m_ctlShare3.BuildThumbItem(m_lpThumb); m_ctlShare3.BuildBackItem(m_lpNormal, m_lpActive); m_ctlShare3.SetTopOffset(3); m_ctlShare3.SetRange(0, 100); m_ctlShare3.SetLineSize(0); m_ctlShare3.SetPos(80); } void CCoolSliderDlg::BuildVerticalSlider() { m_ctlVert1.SetFlipCursor(m_hHandCur); m_ctlVert1.BuildThumbItem(IDB_VERTICAL_THUMB, 12, 6); m_ctlVert1.BuildBackItem(IDB_VERTICAL_NORMAL, IDB_VERTICAL_ACTIVE); m_ctlVert1.SetLeftOffset(0); m_ctlVert1.SetRange(0, 100); m_ctlVert1.SetLineSize(0); m_ctlVert1.SetPos(50); m_ctlVert2.SetFlipCursor(m_hHandCur); m_ctlVert2.BuildThumbItem(IDB_VERTICAL_THUMB, 12, 6); m_ctlVert2.BuildBackItem(IDB_VERTICAL_NORMAL, IDB_VERTICAL_NORMAL); m_ctlVert2.SetLeftOffset(3); m_ctlVert2.SetRange(0, 100); m_ctlVert2.SetLineSize(0); m_ctlVert2.SetPos(5