prefdialog.cpp

FreeAMP(MP3播放)程序源代码-用来研究MP3解码

            Button_SetCheck(hwndLogDecoder, originalValues.logDecoder); 
            Button_SetCheck(hwndLogInput, originalValues.logInput); 
            Button_SetCheck(hwndLogOutput, originalValues.logOutput); 
            Button_SetCheck(hwndLogPerformance, originalValues.logPerformance); 
                     
            break;
        }

        case WM_COMMAND:
        {
            switch(LOWORD(wParam))
            {
                case IDC_LOG:
                {
                    BOOL enabled;

                    if(Button_GetCheck(hwndLog) == BST_CHECKED)
                    {
                        currentValues.enableLogging = true;
                       
                    }
                    else
                    {
                        currentValues.enableLogging = false;
                    }

                    enabled = (currentValues.enableLogging ? TRUE : FALSE);

                    Button_Enable(hwndLogDecoder, enabled); 
                    Button_Enable(hwndLogInput, enabled);
                    Button_Enable(hwndLogOutput, enabled);
                    Button_Enable(hwndLogMain, enabled);
                    Button_Enable(hwndLogPerformance, enabled);

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

                case IDC_LOGDECODER:
                {
                    if(Button_GetCheck(hwndLogDecoder) == BST_CHECKED)
                    {
                        currentValues.logDecoder = true;
                    }
                    else
                    {
                        currentValues.logDecoder = false;
                    }

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

                case IDC_LOGINPUT:
                {
                    if(Button_GetCheck(hwndLogInput) == BST_CHECKED)
                    {
                        currentValues.logInput = true;
                    }
                    else
                    {
                        currentValues.logInput = false;
                    }

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

                case IDC_LOGOUTPUT:
                {
                    if(Button_GetCheck(hwndLogOutput) == BST_CHECKED)
                    {
                        currentValues.logOutput = true;
                    }
                    else
                    {
                        currentValues.logOutput = false;
                    }

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

                case IDC_LOGPERFORMANCE:
                {
                    if(Button_GetCheck(hwndLogPerformance) == BST_CHECKED)
                    {
                        currentValues.logPerformance = true;
                    }
                    else
                    {
                        currentValues.logPerformance = false;
                    }

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

                case IDC_LOGMAIN:
                {
                    if(Button_GetCheck(hwndLogMain) == BST_CHECKED)
                    {
                        currentValues.logMain = true;
                    }
                    else
                    {
                        currentValues.logMain = false;
                    }

                    if(memcmp(  &originalValues, 
                                &currentValues, 
                                sizeof(PrefsStruct)))
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }
            }

            break;
        }

        case WM_NOTIFY:
        {
            NMHDR* notify = (NMHDR*)lParam;

            switch(notify->code)
            {
                case PSN_SETACTIVE:
                {
                    
                    break;
                }

                case PSN_APPLY:
                {
                    SavePrefsValues(prefs, &currentValues);
                    break;
                }

                case PSN_KILLACTIVE:
                {
                    
                    break;
                }

                case PSN_RESET:
                {
                    SavePrefsValues(prefs, &originalValues);
                    break;
                }
            }

            break;
        }
    }

    return result;
}

static
BOOL 
CALLBACK 
PrefPage4Proc(  HWND hwnd, 
                UINT msg, 
                WPARAM wParam, 
                LPARAM lParam)
{
    UINT result = 0;
    static PROPSHEETPAGE* psp = NULL;
    static Preferences* prefs = NULL;
    
    switch(msg)
    {
        case WM_INITDIALOG:
        {
            // remember these for later...
            psp = (PROPSHEETPAGE*)lParam;
            prefs = (Preferences*)psp->lParam;
            
            break;
        }

        case WM_COMMAND:
        {
            switch(LOWORD(wParam))
            {
                case IDC_GOTOFREEAMP:
                {
                    ShellExecute(   hwnd, 
                                    "open", 
                                    "http://www.freeamp.org/", 
                                    NULL, 
                                    NULL, 
                                    SW_SHOWNORMAL);
                    break;
                }

                case IDC_GOTOEMUSIC:
                {
                    ShellExecute(   hwnd, 
                                    "open", 
                                    "http://www.emusic.com/", 
                                    NULL, 
                                    NULL, 
                                    SW_SHOWNORMAL);
                    break;
                }
            }

            break;
        }

        case WM_NOTIFY:
        {
            NMHDR* notify = (NMHDR*)lParam;

            switch(notify->code)
            {
                case PSN_SETACTIVE:
                {
                    
                    break;
                }

                case PSN_APPLY:
                {
                    SavePrefsValues(prefs, &currentValues);
                    break;
                }

                case PSN_KILLACTIVE:
                {
                    
                    break;
                }

                case PSN_RESET:
                {
                    SavePrefsValues(prefs, &originalValues);
                    break;
                }
            }

            break;
        }
    }

    return result;
}

bool DisplayPreferences(HWND hwndParent, Preferences* prefs)
{
    bool result = false;
    PROPSHEETPAGE psp[4];
    PROPSHEETHEADER psh;
    HINSTANCE hinst = (HINSTANCE)GetWindowLong(hwndParent, GWL_HINSTANCE);

    psp[0].dwSize = sizeof(PROPSHEETPAGE);
    psp[0].dwFlags = 0;
    psp[0].hInstance = hinst;
    psp[0].pszTemplate = MAKEINTRESOURCE(IDD_PREF1);
    psp[0].pszIcon = NULL;
    psp[0].pfnDlgProc = PrefPage1Proc;
    psp[0].pszTitle = NULL;
    psp[0].lParam = (LPARAM)prefs;

    psp[1].dwSize = sizeof(PROPSHEETPAGE);
    psp[1].dwFlags = 0;
    psp[1].hInstance = hinst;
    psp[1].pszTemplate = MAKEINTRESOURCE(IDD_PREF2);
    psp[1].pszIcon = NULL;
    psp[1].pfnDlgProc = PrefPage2Proc;
    psp[1].pszTitle = NULL;
    psp[1].lParam = (LPARAM)prefs;

    psp[2].dwSize = sizeof(PROPSHEETPAGE);
    psp[2].dwFlags = 0;
    psp[2].hInstance = hinst;
    psp[2].pszTemplate = MAKEINTRESOURCE(IDD_PREF3);
    psp[2].pszIcon = NULL;
    psp[2].pfnDlgProc = PrefPage3Proc;
    psp[2].pszTitle = NULL;
    psp[2].lParam = (LPARAM)prefs;

    psp[3].dwSize = sizeof(PROPSHEETPAGE);
    psp[3].dwFlags = 0;
    psp[3].hInstance = hinst;
    psp[3].pszTemplate = MAKEINTRESOURCE(IDD_PREF4);
    psp[3].pszIcon = NULL;
    psp[3].pfnDlgProc = PrefPage4Proc;
    psp[3].pszTitle = NULL;
    psp[3].lParam = (LPARAM)prefs;

    psh.dwSize = sizeof(PROPSHEETHEADER);
    psh.dwFlags = PSH_PROPSHEETPAGE;
    psh.hwndParent = hwndParent;
    psh.hInstance = hinst;
    psh.pszIcon = NULL;
    psh.pszCaption = "FreeAmp Preferences";
    psh.nPages = sizeof(psp)/sizeof(PROPSHEETPAGE);
    psh.nStartPage = 0;
    psh.ppsp = psp;
    psh.pfnCallback = NULL;

    GetPrefsValues(prefs, &originalValues);

    currentValues = originalValues;

    result = (PropertySheet(&psh) > 0);

    return result;
}