gui.c

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static void create_traymenu(gui_t *gui)
{
    gui->traymenu = CreatePopupMenu();
    gui->trayplaybackmenu = CreatePopupMenu();
    AppendMenu(gui->traymenu, MF_STRING | MF_POPUP, (UINT) gui->trayplaymenu, "Open...");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING | MF_POPUP, (UINT) gui->trayplaybackmenu, "Playback");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_SEEKB, "Seek Backwards");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_PTRACK, "Previous Track");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_PLAY, "Play/Pause");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_STOP, "Stop");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_NTRACK, "Next Track");
    AppendMenu(gui->trayplaybackmenu, MF_STRING, ID_SEEKF, "Seek Forwards");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING, ID_MUTE, "Toggle Mute");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING, IDSUBTITLE_OPEN, "Open Subtitle");
    AppendMenu(gui->traymenu, MF_STRING, ID_PLAYLIST, "Playlist");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING, ID_SHOWHIDE, "Show/Hide");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING, ID_PREFS, "Preferences");
    AppendMenu(gui->traymenu, MF_STRING, ID_CONSOLE, "Debug Console");
    AppendMenu(gui->traymenu, MF_STRING, ID_ONLINEHELP, "Online Help");
    AppendMenu(gui->traymenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->traymenu, MF_STRING, IDEXIT, "&Exit");
}

static void create_submenu(gui_t *gui)
{
    gui->submenu = CreatePopupMenu();
    gui->dvdmenu = CreatePopupMenu();
    gui->aspectmenu = CreatePopupMenu();
    gui->subtitlemenu = CreatePopupMenu();
    AppendMenu(gui->submenu, MF_STRING | MF_POPUP, (UINT) gui->trayplaymenu, "Open...");
    AppendMenu(gui->submenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->submenu, MF_STRING, ID_SEEKB, "Seek Backwards");
    AppendMenu(gui->submenu, MF_STRING, ID_PTRACK, "Previous Track");
    AppendMenu(gui->submenu, MF_STRING, ID_PLAY, "Play/Pause");
    AppendMenu(gui->submenu, MF_STRING, ID_STOP, "Stop");
    AppendMenu(gui->submenu, MF_STRING, ID_NTRACK, "Next Track");
    AppendMenu(gui->submenu, MF_STRING, ID_SEEKF, "Seek Forwards");
    AppendMenu(gui->submenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->submenu, MF_STRING, ID_FULLSCREEN, "Toggle Fullscreen");
    AppendMenu(gui->submenu, MF_STRING, ID_MUTE, "Toggle Mute");
    AppendMenu(gui->submenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->submenu, MF_STRING | MF_POPUP, (UINT) gui->aspectmenu, "Aspect Ratio");
    AppendMenu(gui->submenu, MF_STRING | MF_POPUP, (UINT) gui->subtitlemenu, "Subtitle Options");
    AppendMenu(gui->submenu, MF_STRING | MF_POPUP, (UINT) gui->dvdmenu, "DVD Options");
#ifdef USE_DVDREAD
    AppendMenu(gui->dvdmenu, MF_STRING | MF_GRAYED, ID_CHAPTERSEL, "Select Title/Chapter...");
#endif
    AppendMenu(gui->subtitlemenu, MF_STRING, IDSUB_TOGGLE, "Subtitle Visibility On/Off");
    AppendMenu(gui->subtitlemenu, MF_STRING, IDSUB_CYCLE, "Cycle Subtitle Languages");
    AppendMenu(gui->aspectmenu, MF_STRING, ID_ASPECT1, "Set 16:9");
    AppendMenu(gui->aspectmenu, MF_STRING, ID_ASPECT2, "Set 4:3");
    AppendMenu(gui->aspectmenu, MF_STRING, ID_ASPECT3, "Set 2.35");
    AppendMenu(gui->aspectmenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->aspectmenu, MF_STRING, ID_ASPECT4, "Original Aspect");
    AppendMenu(gui->submenu, MF_SEPARATOR, 0, 0);
    AppendMenu(gui->submenu, MF_STRING, IDEXIT, "&Exit");
}

static void maketransparent(HWND hwnd, COLORREF crTransparent)
{
    HDC mdc = GetDC(hwnd);
    RECT rd;
    HRGN crRgnres, crRgn, crRgnTmp;
    int iX = 0, iY = 0, iLeftX = 0;
    int width, height;
    GetWindowRect(hwnd, &rd);
    width = rd.right - rd.left;
    height = rd.bottom - rd.top;

    /* create an empty region */
    crRgn = CreateRectRgn(0, 0, 0, 0);

    /* Create a region from a bitmap with transparency colour of Purple */
    for (iY = -1; iY < height; iY++)
    {
        do
        {
            /* skip over transparent pixels at start of lines */
            while (iX <= width && GetPixel(mdc,iX, iY) == crTransparent) iX++;

            /* remember this pixel */
            iLeftX = iX;

            /* now find first non transparent pixel */
            while (iX <= width && GetPixel(mdc,iX, iY) != crTransparent) ++iX;

            /* create a temp region on this info */
            crRgnTmp = CreateRectRgn(iLeftX, iY, iX, iY+1);

            /* combine into main region */
            crRgnres = crRgn;
            CombineRgn(crRgnres, crRgn, crRgnTmp, RGN_OR);
            crRgn = crRgnres;

            /* delete the temp region for next pass (otherwise you'll get an ASSERT) */
            DeleteObject(crRgnTmp);
        } while (iX < width);
        iX = 0;
    }
    SetWindowRgn(hwnd, crRgn, TRUE);
    DeleteObject(crRgn);
    ReleaseDC(hwnd,mdc);
}

static int window_render(gui_t *gui, HWND hWnd, HDC hdc, window_priv_t *priv, window *desc, BITMAPINFO binfo)
{
    int i;
    SetWindowLongPtr(hWnd, GWLP_USERDATA, (DWORD) gui);
    (gui->window_priv_count)++;
    gui->window_priv = realloc(gui->window_priv, sizeof(window_priv_t *) * gui->window_priv_count);
    priv = gui->window_priv[gui->window_priv_count - 1] = calloc(1, sizeof(window_priv_t));
    priv->hwnd = hWnd;
    priv->type = desc->type;
    priv->background = desc->base->bitmap[0];
    memcpy(&priv->img, desc->base->bitmap[0], sizeof(image));
    hdc = GetDC(hWnd);
    binfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    binfo.bmiHeader.biWidth = priv->img.width;
    binfo.bmiHeader.biHeight = -priv->img.height;
    binfo.bmiHeader.biPlanes = 1;
    binfo.bmiHeader.biSizeImage = priv->img.width * priv->img.height * (gui->screenbpp / 8);
    binfo.bmiHeader.biXPelsPerMeter = 0;
    binfo.bmiHeader.biYPelsPerMeter = 0;
    binfo.bmiHeader.biClrUsed = 0;
    binfo.bmiHeader.biClrImportant = 0;
    binfo.bmiHeader.biBitCount = gui->screenbpp;
    binfo.bmiHeader.biCompression = BI_RGB;
    priv->bitmap = CreateDIBSection(hdc, &binfo, DIB_RGB_COLORS, (void **) &priv->img.data, NULL, 0);
    if(!priv->bitmap)
    {
        mp_msg(MSGT_GPLAYER, MSGL_FATAL, "[GUI] unable to create bitmap for skinned window\n");
        return 0;
    }
    memcpy(priv->img.data, desc->base->bitmap[0]->data, binfo.bmiHeader.biSizeImage);
    ReleaseDC(hWnd,hdc);

    for (i=0; i<gui->skin->widgetcount; i++)
        if(gui->skin->widgets[i]->window == desc->type)
            renderwidget(gui->skin, &priv->img, gui->skin->widgets[i], 1);

    return 0;
}

/* creates the sub (AKA video) window,*/
extern int create_subwindow(gui_t *gui, char *skindir)
{
    HINSTANCE instance = GetModuleHandle(NULL);
    WNDCLASS wc;
    RECT rect;
    HWND hWnd;
    DWORD style = 0;
    HDC hdc = NULL;
    BITMAPINFO binfo;
    window_priv_t *priv = NULL;
    window *desc = NULL;
    int i, x = -1, y = -1;
    vo_colorkey = 0xff00ff;

    for (i=0; i<gui->skin->windowcount; i++)
        if(gui->skin->windows[i]->type == wiSub)
            desc = gui->skin->windows[i];

    if(!desc)
    {
        mp_msg(MSGT_GPLAYER, MSGL_FATAL, "[GUI] Invalid skin description\n");
        return 1;
    }

    windowcolor = vo_colorkey;
    colorbrush = CreateSolidBrush(windowcolor);
    wc.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
    wc.lpfnWndProc = SubProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = instance;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hIcon = gui->icon;
    wc.hbrBackground = NULL; //WM_PAINT will handle background color switching;
    wc.lpszClassName = "MPlayer Sub for Windows";
    wc.lpszMenuName = NULL;
    RegisterClass(&wc);

    /* create the sub window menu */
    create_submenu(gui);

    rect.top = rect.left = 100;
    rect.bottom = rect.top+desc->base->bitmap[0]->height;
    rect.right = rect.left+desc->base->bitmap[0]->width;

    /* our window aspect */
    sub_aspect = (float)(rect.right-rect.left)/(rect.bottom-rect.top);

    style = fullscreen?WS_VISIBLE | WS_POPUP:WS_OVERLAPPEDWINDOW | WS_SYSMENU | WS_MINIMIZEBOX;
    AdjustWindowRect(&rect, style, 0);

    if (gui_sub_pos_x >= 0)
        x = gui_sub_pos_x;
    if (gui_sub_pos_y >= 0)
        y = gui_sub_pos_y;

    /* out of bounds check */
    if (x <= -1 || (x+(rect.right-rect.left) > GetSystemMetrics(SM_CXSCREEN)))
        x = CW_USEDEFAULT;
    if (y <= -1 || (y+(rect.bottom-rect.top) > GetSystemMetrics(SM_CYSCREEN)))
        y = x;

    hWnd = CreateWindowEx(0, "MPlayer Sub for Windows", "MPlayer for Windows", style,
                          x, y, rect.right-rect.left, rect.bottom-rect.top,
                          gui->subwindow, NULL, instance, NULL);

    /* load all the window images */
    window_render(gui, hWnd, hdc, priv, desc, binfo);

    /* enable drag and drop support */
    DragAcceptFiles(hWnd, TRUE);

    gui->subwindow = hWnd;
    if(sub_window)
        WinID = gui->subwindow;
    ShowWindow(gui->subwindow, SW_SHOW);
    UpdateWindow(gui->subwindow);
    return 0;
}

/* loads/updates a skin and creates windows for it */
extern int create_window(gui_t *gui, char *skindir)
{
    HINSTANCE instance = GetModuleHandle(NULL);
    WNDCLASS wc;
    RECT rect;
    DWORD style = 0;
    HWND hwnd;
    HDC hdc = NULL;
    BITMAPINFO binfo;
    window_priv_t *priv = NULL;
    window *desc = NULL;
    char dir[MAX_PATH];
    unsigned int i;
    int x = -1, y = -1;

    /* destroy the current main window */
    if(gui->skin) destroy_window(gui);

    /* get screenproperties */
    gui->screenbpp = GetDesktopBitsPerPixel();
    gui->screenw = GetSystemMetrics(SM_CXSCREEN);
    gui->screenh = GetSystemMetrics(SM_CYSCREEN);

    /* load the new skin */
    gui->skin = loadskin(skindir, gui->screenbpp);
    if(!gui->skin)
    {
        mp_msg(MSGT_GPLAYER, MSGL_FATAL, "[GUI] fatal error during skinload\n");
        /* Set default Skin */
        if (skinName) free(skinName);
        skinName = strdup("Blue");
        /* then force write conf */
        cfg_write();
        return 1;
    }

    /* find the description of the mainwindow */
    for (i=0; i<gui->skin->windowcount; i++)
        if(gui->skin->windows[i]->type == wiMain)
            desc = gui->skin->windows[i];

    if(!desc)
    {
        mp_msg(MSGT_GPLAYER, MSGL_FATAL, "[GUI] Invalid skin description\n");
        return 1;
    }

    /* load the icon from the executable */
    GetModuleFileName(NULL, dir, MAX_PATH);
    gui->icon = ExtractIcon(instance, dir, 0);

    /* create the window class */
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = EventProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = instance;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hIcon = gui->icon;
    wc.hbrBackground = CreateSolidBrush(RGB(0, 0, 0));
    wc.lpszClassName = gui->classname = "MPlayer GUI for Windows";
    wc.lpszMenuName = NULL;
    RegisterClass(&wc);

    /* create a context menu */
    create_menu(gui);
    /* create the systray menu */
    create_traymenu(gui);

    /* create the mainwindow */
    /* TODO implement aligning as described in skin.html */
    rect.top = rect.left = 100;
    rect.bottom = rect.top+desc->base->bitmap[0]->height;
    rect.right = rect.left+desc->base->bitmap[0]->width;
    if(desc->decoration) style = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
    else style = WS_POPUP | WS_SYSMENU;

    AdjustWindowRect(&rect, style, 0);

    /* Check if out of screen */
    if (gui_main_pos_x >= 0)
        x = gui_main_pos_x;
    if (gui_main_pos_y >= 0)
        y = gui_main_pos_y;

    if (x <= -1 || (x+(rect.right-rect.left) > GetSystemMetrics(SM_CXFULLSCREEN)))
    {
        x = (GetSystemMetrics(SM_CXSCREEN) / 2) - ((rect.right-rect.left) / 2);
        gui_main_pos_x = x;
    }
    if (y <= -1 || (y+(rect.bottom-rect.top) > GetSystemMetrics(SM_CYFULLSCREEN)))
    {
        y = ((GetSystemMetrics(SM_CYSCREEN)-40) - (rect.bottom-rect.top));
        gui_main_pos_y = y;
    }

    hwnd = CreateWindowEx(0, gui->classname, "MPlayer for Windows", style,
                          x, y, rect.right-rect.left, rect.bottom-rect.top,
                          gui->mainwindow, NULL, instance, NULL);

    /* set the systray icon properties */
    nid.cbSize = sizeof(NOTIFYICONDATA);
    nid.hWnd = hwnd;
    nid.uID = 1;
    nid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
    nid.uCallbackMessage = WM_SYSTRAY;
    nid.hIcon = gui->icon;
    strcpy(nid.szTip, "MPlayer for Windows");

    /* register the systray icon */
    Shell_NotifyIcon(NIM_ADD, &nid);

    /* load all the window images */
    window_render(gui, hwnd, hdc, priv, desc, binfo);

    /* enable drag and drop support */
    DragAcceptFiles(hwnd, TRUE);

    updatedisplay(gui, hwnd);
    gui->mainwindow = hwnd;

    /* display */
    ShowWindow(gui->mainwindow, SW_SHOW);
    UpdateWindow(gui->mainwindow);
    maketransparent(gui->mainwindow, RGB(255, 0, 255));
    return 0;
}

gui_t *create_gui(char *skindir, char *skinName, void (*playercontrol)(int event))
{
    gui_t *gui = calloc(1, sizeof(gui_t));
    char temp[MAX_PATH];
    HWND runningmplayer = FindWindow("MPlayer GUI for Windows", "MPlayer for Windows");

    if(runningmplayer)
    {
        free(gui);
        return NULL;
    }

    gui->startplay = startplay;
    gui->playercontrol = playercontrol;
    gui->uninit = uninit;
    gui->updatedisplay = updatedisplay;

    /* create playlist */
    gui->playlist = create_playlist();

    if(!skinName) skinName = strdup("Blue");
    sprintf(temp, "%s\\%s", skindir, skinName);
    if(create_window(gui, temp)) return NULL;
    if(create_subwindow(gui, temp)) return NULL;
    if(console) console_toggle();
    return gui;
}