Artwork viewer

// ==PREPROCESSOR==
// @name "Album art display"
// @author "D. Gjorgjevski"
// ==/PREPROCESSOR==

window.MinWidth = window.MinHeight = window.MaxWidth = window.MaxHeight = 325;

var coverImage = null;
var defaultFont = gdi.Font(window.GetFontDUI(0).Name, 18); // Default font, size 18

function on_paint(graphics)
{
    graphics.SetSmoothingMode(4); // Use anti-aliasing
    graphics.FillSolidRect(0, 0, window.Width, window.Height, 0xFFFFFFFF); // Fill the background

    if (coverImage)
    {
        graphics.SetInterpolationMode(7); // Use high-quality bicubic interpolation
        graphics.DrawImage(coverImage, 0, 0, window.Width, window.Height, 0, 0, coverImage.Width, coverImage.Height);
    }
    else
    {
        graphics.SetTextRenderingHint(4); // Use anti-aliased text
        graphics.GdiDrawText("No image was found to be displayed.", defaultFont, 0x00000000, 0, 0, window.Width, window.Height, 3077);
    }

    /*
        DT_CENTER   = 0x00000001
        DT_VCENTER  = 0x00000004
        DT_CALCRECT = 0x00000400
        DT_NOPREFIX = 0x00000800

        DT_CENTER | DT_VCENTER | DT_CALCRECT | DT_NOPREFIX = 3077
    */
}

function on_get_album_art_done(whichTrack, type, image, path)
{
    coverImage = image;
    window.Repaint();
}

function on_playback_new_track(whichTrack)
{
    if (whichTrack)
        utils.GetAlbumArtAsync(window.ID, whichTrack, 0, false, false, false);

    /*
        Do not load a stub image if no cover art is found.
        Check for external as well as for embedded images.
        Load the image into the memory and use it within the callback.
    */

    coverImage && coverImage.Dispose();
}

on_playback_new_track(fb.GetNowPlaying());