win32preferencewindow.cpp

一个简单漂亮的C++编写的mp3播放器

                    {
                        m_proposedValues.logPerformance = false;
                    }

                    if(m_proposedValues != m_currentValues)
                    {
                        PropSheet_Changed(GetParent(hwnd), hwnd);
                    }
                    else
                    {
                        PropSheet_UnChanged(GetParent(hwnd), hwnd);
                    }

                    break;
                }

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

                    if(m_proposedValues != m_currentValues)
                    {
                        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, &m_proposedValues);
                    break;
                }

                case PSN_KILLACTIVE:
                {
                    
                    break;
                }

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

            break;
        }
    }

    return result;
}

bool Win32PreferenceWindow::PrefAboutProc(HWND hwnd, 
                                          UINT msg, 
                                          WPARAM wParam, 
                                          LPARAM lParam)      
{
    bool result = false;
    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_DRAWITEM:
        {
            DRAWITEMSTRUCT* dis = (DRAWITEMSTRUCT*)lParam;
            UINT ctrlId = wParam;
            HFONT font, oldFont;

            font = (HFONT)GetStockObject(DEFAULT_GUI_FONT);

            oldFont = (HFONT)SelectObject(dis->hDC, font);

            RECT clientRect;
            GetClientRect(dis->hwndItem, &clientRect);

            switch(ctrlId)
            {
                case IDC_APP:
                {
                    DrawText(dis->hDC, 
                             BRANDING,
                             strlen(BRANDING),
                             &clientRect,
                             DT_CENTER|DT_SINGLELINE);
                    break;
                }

                case IDC_VERSION:
                {
                    char version[32];

                    sprintf(version, "version %s", BRANDING_VERSION);

                    DrawText(dis->hDC, 
                             version,
                             strlen(version),
                             &clientRect,
                             DT_CENTER|DT_SINGLELINE);
                    break;
                }

                case IDC_BASED_ON_FREEAMP:
                {
                    if(strcmp(BRANDING, "FreeAmp"))
                    {
                        const char* text = "(based on FreeAmp)";

                        DrawText(dis->hDC, 
                             text,
                             strlen(text),
                             &clientRect,
                             DT_CENTER|DT_SINGLELINE);
                    }

                    break;
                }

                case IDC_CREDIT:
                {
                    const char* credit1 =
                        "FreeAmp is an Open Source effort to build the best "
                        "digital audio player available. In the interest of "
                        "supporting the free software community, while at "
                        "the same time fostering the growth of the online "
                        "delivery of music, EMusic.com is funding both the "
                        "FreeAmp.org domain and the efforts of the FreeAmp "
                        "team. The FreeAmp team consists of: Mark B. Elrod, "
                        "Robert Kaye, Isaac Richards, Brett Thomas, and "
                        "Jason Woodward.";
                    const char* credit2 =
                        "Other people have also contributed to FreeAmp:";
                    const char* credit3 =
                        "William Bull, Alan Cutter, Gabor Fleischer, "
                        "Jean-Michel HERVE, Hiromasa Kato, Michael Bruun "
                        "Petersen, Sylvain Rebaud, The Snowblind Alliance, "
                        "Tom Spindler, and Valters Vingolds.";
                    const char* credit4 =
                        "FreeAmp is being released under the terms of the "
                        "GPL. As is provided by the GPL, all of EMusic.com's "
                        "and your efforts toward FreeAmp will be released "
                        "back to the community at large.";

                    RECT halfHeightRect = clientRect;
                    int halfHeight = DrawText(
                                         dis->hDC, 
                                         credit1,
                                         strlen(credit1),
                                         &halfHeightRect,
                                         DT_LEFT|DT_SINGLELINE|DT_CALCRECT)/3;
                    int height;

                    height = DrawText(
                             dis->hDC, 
                             credit1,
                             strlen(credit1),
                             &clientRect,
                             DT_LEFT|DT_WORDBREAK);

                    clientRect.top += height + halfHeight;

                    height = DrawText(
                             dis->hDC, 
                             credit2,
                             strlen(credit2),
                             &clientRect,
                             DT_LEFT|DT_WORDBREAK);

                    clientRect.top += height + halfHeight;

                    height = DrawText(
                             dis->hDC, 
                             credit3,
                             strlen(credit3),
                             &clientRect,
                             DT_LEFT|DT_WORDBREAK);

                    clientRect.top += height + halfHeight;

                    height = DrawText(
                             dis->hDC, 
                             credit4,
                             strlen(credit4),
                             &clientRect,
                             DT_LEFT|DT_WORDBREAK);

                    break;
                }
            }

            SelectObject(dis->hDC, oldFont);

            DeleteObject(font);
        }

        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_HELP:
        {
            LaunchHelp(hwnd, Preferences_About);
            break;
        }

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

            switch(notify->code)
            {
                case PSN_HELP:
                {
                    LaunchHelp(hwnd, Preferences_About);
                    break;
                }
                case PSN_SETACTIVE:
                {
                    
                    break;
                }

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

                case PSN_KILLACTIVE:
                {
                    
                    break;
                }

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

            break;
        }
    }

    return result;
}

void Win32PreferenceWindow::LoadThemeListBox(HWND hwnd)
{
    map<string, string>::iterator i;

	//m_pThemeMan->GetCurrentTheme(m_proposedValues.currentTheme);

    m_oThemeList.clear();    

    SendDlgItemMessage(hwnd, IDC_THEMELISTBOX, LB_RESETCONTENT, 0, 0);

    m_pThemeMan->GetThemeList(m_oThemeList);

    for(i = m_oThemeList.begin(); i != m_oThemeList.end(); i++)
    {
        int index;

    	index = SendDlgItemMessage(hwnd, IDC_THEMELISTBOX, LB_ADDSTRING,
                           0, (LPARAM)(*i).first.c_str());

        if ((*i).first == m_proposedValues.currentTheme)
            SendDlgItemMessage(hwnd, IDC_THEMELISTBOX, LB_SETCURSEL, index, 0);
    }                      
     
    EnableWindow(GetDlgItem(hwnd, IDC_DELETETHEME), 0);
}

bool Win32PreferenceWindow::PrefThemeProc(HWND hwnd, 
                                          UINT msg, 
                                          WPARAM wParam, 
                                          LPARAM lParam)      
{
    bool result = false;
    static PROPSHEETPAGE* psp = NULL;
    static Preferences* prefs = NULL;
    
    switch(msg)
    {
        case WM_INITDIALOG:
        {
            // remember these for later...
            psp = (PROPSHEETPAGE*)lParam;
            prefs = (Preferences*)psp->lParam;

            LoadThemeListBox(hwnd);

            SetFocus(GetDlgItem(hwnd, IDC_THEMELISTBOX));
            result = false;
            break;
        }

        case WM_COMMAND:
        {
            switch(LOWORD(wParam))
            {
				case IDC_THEMELISTBOX:
                {
                    switch (HIWORD(wParam)) 
                    { 
                        case LBN_SELCHANGE: 
                        {
                	        int    iIndex;
                            char   szCurSel[256];
                    
                            iIndex = SendDlgItemMessage(hwnd, IDC_THEMELISTBOX, 
                                                            LB_GETCURSEL, 0, 0);

                            if(iIndex >= 0)
                            {
                                SendDlgItemMessage(hwnd, IDC_THEMELISTBOX, 
                                                   LB_GETTEXT, iIndex, 
                                                   (LPARAM)szCurSel);
                                if (strcasecmp(szCurSel, "freeamp"))                   
                                   EnableWindow(GetDlgItem(hwnd, IDC_DELETETHEME), 1);
                                else   
                                   EnableWindow(GetDlgItem(hwnd, IDC_DELETETHEME), 0);

                                m_proposedValues.currentTheme = string(szCurSel);

                                if(m_proposedValues != m_currentValues)
                                {
                                    PropSheet_Changed(GetParent(hwnd), hwnd);
                                }
                                else
                                {
                                    PropSheet_UnC