gui.c

mplayer播放器的源码

            break;
        }
        case WM_CAPTURECHANGED:
        {
            if(gui->activewidget)
            {
                gui->activewidget->pressed = 0;
                renderwidget(gui->skin, get_drawground(hWnd), gui->activewidget, 1);
                RedrawWindow(hWnd, NULL, NULL, RDW_INVALIDATE);
                gui->activewidget = NULL;
            }
            break;
        }
        case WM_LBUTTONUP:
        {
            ReleaseCapture();
            if(gui->activewidget)
            {
                gui->activewidget->pressed = 0;
                renderwidget(gui->skin, get_drawground(hWnd), gui->activewidget, 1);
                RedrawWindow(hWnd, NULL, NULL, RDW_INVALIDATE);
                gui->activewidget = NULL;
            }
            break;
        }
        case WM_RBUTTONDOWN:
        {
            POINT point;
            char device[MAX_PATH];
            char searchpath[MAX_PATH];
            char searchpath2[MAX_PATH];
#ifdef HAVE_LIBCDIO
            char searchpath3[MAX_PATH];
#endif
            int len, pos = 0, cdromdrive = 0;
            UINT errmode;
            point.x = GET_X_LPARAM(lParam);
            point.y = GET_Y_LPARAM(lParam);
            ClientToScreen(hWnd, &point);
            errmode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
            while (GetMenuItemCount(gui->diskmenu) > 0)
                DeleteMenu(gui->diskmenu, 0, MF_BYPOSITION);
            len = GetLogicalDriveStrings(MAX_PATH, device);
            while(pos < len)
            {
                if(GetDriveType(device + pos) == DRIVE_CDROM)
                {
                    char volname[MAX_PATH];
                    char menuitem[MAX_PATH];
                    int flags = MF_STRING;
                    mp_msg(MSGT_GPLAYER, MSGL_V, "[GUI] checking %s for CD/VCD/SVCD/DVDs\n", device + pos);
                    sprintf(searchpath, "%sVIDEO_TS", device + pos);
                    sprintf(searchpath2, "%sMpegav", device + pos);
#ifdef HAVE_LIBCDIO
                    sprintf(searchpath3, "%sTrack01.cda", device + pos);
#endif
                    if(GetFileAttributes(searchpath) != INVALID_FILE_ATTRIBUTES)
                        flags |= MF_ENABLED;
                    else if(GetFileAttributes(searchpath2) != INVALID_FILE_ATTRIBUTES)
                        flags |= MF_ENABLED;
#ifdef HAVE_LIBCDIO
                    else if(GetFileAttributes(searchpath3) != INVALID_FILE_ATTRIBUTES)
                        flags |= MF_ENABLED;
#endif
                    else
                        flags |= MF_GRAYED;
                    volname[0] = 0;
                    strcpy(menuitem, device + pos);
                    menuitem[strlen(menuitem) - 1]=0;
                    GetVolumeInformation(device + pos, volname, MAX_PATH, NULL, NULL, NULL, NULL, 0);
                    if (strlen(volname))
                    {
                        capitalize(volname);
                        strcat(menuitem, " - ");
                        strcat(menuitem, volname);
                    }
                    AppendMenu(gui->diskmenu, flags, IDPLAYDISK + cdromdrive, menuitem);
                        cdromdrive++;
                }
                pos += strlen(device + pos) + 1;
            }
            SetErrorMode(errmode);
            TrackPopupMenu(gui->menu, 0, point.x, point.y, 0, hWnd, NULL);
            return 0;
        }
        case WM_MOUSEMOVE:
        {
            if(wParam & MK_LBUTTON)
            {
                POINT point;
                RECT rect;
                if(gui->activewidget)
                {
                    widget *item = gui->activewidget;

                    if(item->type == tyHpotmeter)
                    {
                        item->x = GET_X_LPARAM(lParam) - gui->mousewx;
                        item->value = (float)((float)((item->x - item->wx) * 100.0f) / (float)(item->wwidth - item->width));
                    }
                    if(item->type == tyPotmeter)
                    {
                        gui->mousewx = GET_X_LPARAM(lParam) - gui->activewidget->x;
                        item->value = (float) (gui->mousewx * 100.0f) / (float) item->wwidth;
                    }

                    if((item->type == tyPotmeter) || (item->type == tyHpotmeter) || (item->type == tyVpotmeter))
                    {
                        /* Bound checks */
                        if(item->value > 100.0f)
                            item->value = 100.0f;
                        else if(item->value < 0.0f)
                            item->value = 0.0f;

                        if(item->msg == evSetVolume)
                            guiIntfStruct.Volume = (float) item->value;
                        else if(item->msg == evSetMoviePosition)
                            guiIntfStruct.Position = (float) item->value;
                        else if(item->msg == evSetBalance)
                        {
                            /* make the range for 50% a bit bigger, because the sliders for balance usually suck */
                            if((item->value - 50.0f < 1.5f) && (item->value - 50.0f > -1.5f))
                                item->value = 50.0f;
                            guiIntfStruct.Balance = (float) item->value;
                        }
                        updatedisplay(gui, hWnd);
                        handlemsg(hWnd, item->msg);
                    }
                    break;
                }
                point.x = GET_X_LPARAM(lParam);
                point.y = GET_Y_LPARAM(lParam);
                ClientToScreen(hWnd, &point);
                GetWindowRect(hWnd, &rect);
                MoveWindow(hWnd, point.x - gui->mousex, point.y - gui->mousey,
                           rect.right-rect.left,rect.bottom-rect.top,TRUE);
                break;
            }
            break;
        }
        case WM_COMMAND:
        {
            switch(LOWORD(wParam))
            {
                case IDEXIT:
                    PostQuitMessage(0);
                    handlemsg(hWnd, evExit);
                    break;
                case IDFILE_OPEN:
                    handlemsg(hWnd, evLoadPlay);
                    break;
                case IDDIR_OPEN:
                {
                    static char path[MAX_PATH];
                    BROWSEINFO bi;
                    LPITEMIDLIST pidl;
                    memset(&bi, 0, sizeof(BROWSEINFO));
                    bi.lpszTitle = "Choose a Directory...";
                    pidl = SHBrowseForFolder(&bi);
                    if (SHGetPathFromIDList(pidl, path))
                    {
                        gui->playlist->clear_playlist(gui->playlist);
                        adddirtoplaylist(gui->playlist, path, TRUE);
                        gui->startplay(gui);
                    }
                    break;
                }
                case ID_SKINBROWSER:
                    handlemsg(hWnd, evSkinBrowser);
                    break;
                case IDURL_OPEN:
                    display_openurlwindow(gui, 0);
                    break;
                case ID_MUTE:
                    mp_input_queue_cmd(mp_input_parse_cmd("mute"));
                    break;
                case IDSUBTITLE_OPEN:
                    display_opensubtitlewindow(gui);
                    break;
                case ID_PTRACK:
                    handlemsg(hWnd, evPrev);
                    break;
                case ID_SEEKB:
                    handlemsg(hWnd, evBackward10sec);
                    break;
                case ID_PLAY:
                    handlemsg(hWnd, evPlaySwitchToPause);
                    break;
                case ID_STOP:
                    handlemsg(hWnd, evStop);
                    break;
                case ID_SEEKF:
                    handlemsg(hWnd, evForward10sec);
                    break;
                case ID_NTRACK:
                    handlemsg(hWnd, evNext);
                    break;
                case ID_SHOWHIDE:
                {
                    if(IsWindowVisible(hWnd)) ShowWindow(hWnd, SW_HIDE);
                    else ShowWindow(hWnd, SW_SHOW);
                    break;
                }
                case ID_PLAYLIST:
                    handlemsg(hWnd, evPlayList);
                    break;
                case ID_PREFS:
                    handlemsg(hWnd, evPreferences);
                    break;
                case ID_CONSOLE:
                    console_toggle();
                    break;
                case ID_ONLINEHELP:
                    ShellExecute(NULL, "open", ONLINE_HELP_URL, NULL, NULL, SW_SHOWNORMAL);
                    break;
            }
            if((IDPLAYDISK <= LOWORD(wParam)) && (LOWORD(wParam) < (IDPLAYDISK + 100)))
            {
                char device[MAX_PATH];
                char searchpath[MAX_PATH];
                char filename[MAX_PATH];
                int len, pos = 0, cdromdrive = 0;
                len = GetLogicalDriveStrings(MAX_PATH, device);
                while(pos < len)
                {
                    if(GetDriveType(device + pos)==DRIVE_CDROM)
                    {
                        if(LOWORD(wParam) - IDPLAYDISK == cdromdrive)
                        {
                            sprintf(searchpath, "%sVIDEO_TS", device + pos);
                            if(GetFileAttributes(searchpath) != INVALID_FILE_ATTRIBUTES)
                            {
#ifdef USE_DVDREAD
                                if (dvd_device) free(dvd_device);
                                dvd_device = strdup(device + pos);
                                dvd_title = dvd_chapter = dvd_angle = 1;
                                handlemsg(hWnd, evPlayDVD);
#endif
                            }
                            sprintf(searchpath, "%sTrack01.cda", device + pos);
                            if(GetFileAttributes(searchpath) != INVALID_FILE_ATTRIBUTES)
                            {
#ifdef HAVE_LIBCDIO
                                if (cdrom_device) free(cdrom_device);
                                cdrom_device = strdup(device + pos);
                                /* mplayer doesn't seem to like the trailing \ after the device name */
                                cdrom_device[2]=0;
                                handlemsg(hWnd, evPlayCD);
#endif
                            } else {
                                HANDLE searchhndl;
                                WIN32_FIND_DATA finddata;
                                sprintf(searchpath, "%smpegav\\*.dat", device + pos);
                                if((searchhndl=FindFirstFile(searchpath, &finddata)) != INVALID_HANDLE_VALUE)
                                {
                                    mp_msg(MSGT_GPLAYER,MSGL_V, "Opening VCD/SVCD\n");
                                    gui->playlist->clear_playlist(gui->playlist);
                                    do
                                    {
                                        sprintf(filename, "%smpegav\\%s", device + pos, finddata.cFileName);
                                        gui->playlist->add_track(gui->playlist, filename, NULL, NULL, 0);
                                    }
                                    while(FindNextFile(searchhndl, &finddata));
                                    FindClose(searchhndl);
                                }
                                gui->startplay(gui);
                            }
                        }
                        cdromdrive++;
                    }
                    pos += strlen(device + pos) + 1;
                }
            }
            break;
        }
        case WM_PAINT:
        {
            PAINTSTRUCT ps;
            RECT rd;
            HDC hdc = BeginPaint(hWnd, &ps);
            HDC hMemDC = CreateCompatibleDC(hdc);
            int width, height;
            GetClientRect(hWnd, &rd);
            width = rd.right - rd.left;
            height = rd.bottom - rd.top;
            SelectObject(hMemDC, get_bitmap(hWnd));
            BitBlt(hdc, 0, 0, width, height, hMemDC, 0, 0, SRCCOPY);
            DeleteDC(hMemDC);
            EndPaint(hWnd, &ps);
            return 0;
        }
        return 0;
    }
    return DefWindowProc(hWnd, message, wParam, lParam);
}

inline void startplay(gui_t *gui)
{
    handlemsg(gui->mainwindow, evDropFile);
}

/* returns the bits per pixel of the desktop */
/* the format is always in BGR byte order */
static int GetDesktopBitsPerPixel(void)
{
    HWND desktop=GetDesktopWindow();
    HDC dc=GetDC(desktop);
    int bpp=GetDeviceCaps(dc, BITSPIXEL);
    ReleaseDC(desktop, dc);
    return bpp;
}

/* unloads a skin and destroys its windows */
extern int destroy_window(gui_t *gui)
{
    RECT rd;
    unsigned int i;

    /* Save position: MSDN says don't pass workspace coordinates
     * to CreateWindow() or SetWindowPos(), as both of which expect
     * screen coordinates; resulting in the window appearing in the
     * wrong location.
     * -Erik
     */

    /* main window position */
    if(IsIconic(gui->mainwindow))
        ShowWindow(gui->mainwindow, SW_SHOWNORMAL);
    GetWindowRect(gui->mainwindow, &rd);
    gui_main_pos_x = rd.left;
    gui_main_pos_y = rd.top;

    /* sub window position */
    if(IsIconic(gui->subwindow))
        ShowWindow(gui->subwindow, SW_SHOWNORMAL);
    GetWindowRect(gui->subwindow, &rd);
    gui_sub_pos_x = rd.left;
    gui_sub_pos_y = rd.top;

    for(i=0; i<gui->window_priv_count; i++)
    {
        if(gui->window_priv[i]->bitmap)
            DeleteObject(gui->window_priv[i]->bitmap);
        free(gui->window_priv[i]);
    }
    free(gui->window_priv);
    gui->window_priv = NULL;
    gui->window_priv_count = 0;

    /* destroy the main window */
    if(gui->mainwindow)
        DestroyWindow(gui->mainwindow);
    gui->mainwindow = NULL;

    /* destroy the sub window */
    if(gui->subwindow)
        DestroyWindow(gui->subwindow);
    gui->subwindow = NULL;

    UnregisterClass(gui->classname, 0);
    DestroyIcon(gui->icon);

    gui->skin->freeskin(gui->skin);
    gui->skin = NULL;
    return 0;
}

static void create_menu(gui_t *gui)
{
    gui->diskmenu = CreatePopupMenu();
    gui->menu=CreatePopupMenu();
    gui->trayplaymenu = CreatePopupMenu();
    AppendMenu(gui->menu, MF_STRING | MF_POPUP, (UINT) gui->trayplaymenu, "Open...");
    AppendMenu(gui->trayplaymenu, MF_STRING, IDFILE_OPEN, "File...");
    AppendMenu(gui->trayplaymenu, MF_STRING, IDURL_OPEN, "Url...");
    AppendMenu(gui->trayplaymenu, MF_STRING, IDDIR_OPEN, "Directory...");
    AppendMenu(gui->menu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->menu, MF_STRING | MF_POPUP, (UINT) gui->diskmenu, "Play &CD/DVD/VCD/SVCD");
    AppendMenu(gui->menu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->menu, MF_STRING, IDSUBTITLE_OPEN, "Open Subtitle");
    AppendMenu(gui->menu, MF_STRING, ID_SKINBROWSER, "Skin Browser");
    AppendMenu(gui->menu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->menu, MF_STRING, ID_PREFS, "Preferences");
    AppendMenu(gui->menu, MF_STRING, ID_CONSOLE, "Debug Console");
    AppendMenu(gui->menu, MF_STRING, ID_ONLINEHELP, "Online Help");
    AppendMenu(gui->menu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->menu, MF_STRING, IDEXIT, "&Exit");
}