private void DrawRows(IGraphicsContext context)
{
var state = new DrawCellState();
BasicGradientBrush brushGradient = null;
var penTransparent = new BasicPen();
// Calculate how many lines must be skipped because of the scrollbar position
_startLineNumber = Math.Max((int) Math.Floor((double) VerticalScrollBar.Value/(double) (_songCache.LineHeight)), 0);
// Check if the total number of lines exceeds the number of icons fitting in height
_numberOfLinesToDraw = 0;
if (_startLineNumber + _songCache.NumberOfLinesFittingInControl > _items.Count)
{
// There aren't enough lines to fill the screen
_numberOfLinesToDraw = _items.Count - _startLineNumber;
}
else
{
// Fill up screen
_numberOfLinesToDraw = _songCache.NumberOfLinesFittingInControl;
}
// Add one line for overflow; however, make sure we aren't adding a line without content
if (_startLineNumber + _numberOfLinesToDraw + 1 <= _items.Count)
_numberOfLinesToDraw++;
// Loop through lines
for (int a = _startLineNumber; a < _startLineNumber + _numberOfLinesToDraw; a++)
{
// Calculate offsets, widths and other variants
state.OffsetX = 0;
state.OffsetY = (a * _songCache.LineHeight) - VerticalScrollBar.Value + _songCache.LineHeight; // compensate for scrollbar position
int albumArtColumnWidth = _columns[0].Visible ? _columns[0].Width : 0;
int lineBackgroundWidth = (int) (Frame.Width + HorizontalScrollBar.Value - albumArtColumnWidth);
if (VerticalScrollBar.Visible)
lineBackgroundWidth -= VerticalScrollBar.Width;
// Check conditions to determine background color
var audioFile = _items[a].AudioFile;
var colorBackground1 = _theme.BackgroundColor;
var colorBackground2 = _theme.BackgroundColor;
if ((_mode == SongGridViewMode.AudioFile && audioFile != null && audioFile.Id == _nowPlayingAudioFileId) ||
(_mode == SongGridViewMode.Playlist && _items[a].PlaylistItemId == _nowPlayingPlaylistItemId))
{
colorBackground1 = _theme.NowPlayingBackgroundColor;
colorBackground2 = _theme.NowPlayingBackgroundColor;
}
if (_items[a].IsSelected)
{
colorBackground1 = _theme.SelectedBackgroundColor;
colorBackground2 = _theme.SelectedBackgroundColor;
// // Use darker color
// byte diff = 4;
// colorBackground1 = new BasicColor(255,
// (byte)((colorBackground1.R - diff < 0) ? 0 : colorBackground1.R - diff),
// (byte)((colorBackground1.G - diff < 0) ? 0 : colorBackground1.G - diff),
// (byte)((colorBackground1.B - diff < 0) ? 0 : colorBackground1.B - diff));
// colorBackground2 = new BasicColor(255,
// (byte)((colorBackground2.R - diff < 0) ? 0 : colorBackground2.R - diff),
// (byte)((colorBackground2.G - diff < 0) ? 0 : colorBackground2.G - diff),
// (byte)((colorBackground2.B - diff < 0) ? 0 : colorBackground2.B - diff));
}
//// Check if mouse is over item
//if (items[a].IsMouseOverItem)
//{
// // Use lighter color
// int diff = 20;
// colorBackground1 = Color.FromArgb(255,
// (colorBackground1.R + diff > 255) ? 255 : colorBackground1.R + diff,
// (colorBackground1.G + diff > 255) ? 255 : colorBackground1.G + diff,
// (colorBackground1.B + diff > 255) ? 255 : colorBackground1.B + diff);
// colorBackground2 = Color.FromArgb(255,
// (colorBackground2.R + diff > 255) ? 255 : colorBackground2.R + diff,
// (colorBackground2.G + diff > 255) ? 255 : colorBackground2.G + diff,
// (colorBackground2.B + diff > 255) ? 255 : colorBackground2.B + diff);
//}
//// Check conditions to determine background color
//if ((_mode == SongGridViewMode.AudioFile && audioFile.Id == _nowPlayingAudioFileId) ||
// (_mode == SongGridViewMode.Playlist && _items[a].PlaylistItemId == _nowPlayingPlaylistItemId))
//{
// colorNowPlaying1 = colorBackground1;
// colorNowPlaying2 = colorBackground2;
//}
// Draw row background
var rectBackground = new BasicRectangle(albumArtColumnWidth - HorizontalScrollBar.Value, state.OffsetY, lineBackgroundWidth, _songCache.LineHeight + 1);
brushGradient = new BasicGradientBrush(colorBackground1, colorBackground2, 90);
context.DrawRectangle(rectBackground, brushGradient, penTransparent);
// Loop through columns
for (int b = 0; b < _songCache.ActiveColumns.Count; b++)
{
DrawCell(context, a, b, audioFile, state);
}
}
// If no songs are playing, set the current now playing rectangle as "empty"
if (!state.NowPlayingSongFound)
_rectNowPlaying = new BasicRectangle(0, 0, 1, 1);
}
private void DrawCell(IGraphicsContext context, int row, int col, AudioFile audioFile, DrawCellState state)
{
var rect = new BasicRectangle();
var brush = new BasicBrush();
var brushGradient = new BasicGradientBrush();
var penTransparent = new BasicPen();
var column = _songCache.ActiveColumns[col];
if (column.Visible)
{
if (column.Title == "Now Playing")
{
// Draw now playing icon
if ((_mode == SongGridViewMode.AudioFile && audioFile != null && audioFile.Id == _nowPlayingAudioFileId) ||
(_mode == SongGridViewMode.Playlist && _items[row].PlaylistItemId == _nowPlayingPlaylistItemId))
{
// Which size is the minimum? Width or height?
int availableWidthHeight = column.Width - 4;
if (_songCache.LineHeight <= column.Width)
availableWidthHeight = _songCache.LineHeight - 4;
else
availableWidthHeight = column.Width - 4;
// Calculate the icon position
float iconNowPlayingX = ((column.Width - availableWidthHeight) / 2) + state.OffsetX - HorizontalScrollBar.Value;
float iconNowPlayingY = state.OffsetY + ((_songCache.LineHeight - availableWidthHeight) / 2);
// Create NowPlaying rect (MUST be in integer)
_rectNowPlaying = new BasicRectangle((int)iconNowPlayingX, (int)iconNowPlayingY, availableWidthHeight, availableWidthHeight);
state.NowPlayingSongFound = true;
// Draw outer circle
brushGradient = new BasicGradientBrush(_theme.NowPlayingIndicatorBackgroundColor, _theme.NowPlayingIndicatorBackgroundColor, _timerAnimationNowPlayingCount % 360);
context.DrawEllipsis(_rectNowPlaying, brushGradient, penTransparent);
// Draw inner circle
rect = new BasicRectangle((int)iconNowPlayingX + 4, (int)iconNowPlayingY + 4, availableWidthHeight - 8, availableWidthHeight - 8);
brush = new BasicBrush(_theme.NowPlayingBackgroundColor);
context.DrawEllipsis(rect, brush, penTransparent);
}
}
else if (column.Title == "Album Cover")
{
DrawAlbumCoverZone(context, row, audioFile, state);
}
else if (audioFile != null)
{
// Print value depending on type
var propertyInfo = audioFile.GetType().GetProperty(column.FieldName);
if (propertyInfo != null)
{
string value = string.Empty;
try
{
if (propertyInfo.PropertyType.FullName == "System.String")
{
value = propertyInfo.GetValue(audioFile, null).ToString();
}
else if (propertyInfo.PropertyType.FullName.Contains("Int64") &&
propertyInfo.PropertyType.FullName.Contains("Nullable"))
{
long? longValue = (long?)propertyInfo.GetValue(audioFile, null);
if (longValue.HasValue)
value = longValue.Value.ToString();
}
else if (propertyInfo.PropertyType.FullName.Contains("DateTime") &&
propertyInfo.PropertyType.FullName.Contains("Nullable"))
{
DateTime? dateTimeValue = (DateTime?)propertyInfo.GetValue(audioFile, null);
if (dateTimeValue.HasValue)
value = dateTimeValue.Value.ToShortDateString() + " " + dateTimeValue.Value.ToShortTimeString();
}
else if (propertyInfo.PropertyType.FullName.Contains("System.UInt32"))
{
uint uintValue = (uint)propertyInfo.GetValue(audioFile, null);
value = uintValue.ToString();
}
else if (propertyInfo.PropertyType.FullName.Contains("System.Int32"))
{
int intValue = (int)propertyInfo.GetValue(audioFile, null);
value = intValue.ToString();
}
else if (propertyInfo.PropertyType.FullName.Contains("Sessions.Sound.AudioFileFormat"))
{
AudioFileFormat theValue = (AudioFileFormat)propertyInfo.GetValue(audioFile, null);
value = theValue.ToString();
}
}
catch
{
// Do nothing
}
//// The last column always take the remaining width
//int columnWidth = column.Width;
//if (b == _songCache.ActiveColumns.Count - 1)
//{
// // Calculate the remaining width
// int columnsWidth = 0;
// for (int c = 0; c < _songCache.ActiveColumns.Count - 1; c++)
// {
// columnsWidth += _songCache.ActiveColumns[c].Width;
// }
// //columnWidth = (int) (Frame.Width - columnsWidth + HorizontalScrollBar.Value);
//}
// Display text
rect = new BasicRectangle(state.OffsetX - HorizontalScrollBar.Value + 2, state.OffsetY + (_theme.Padding / 2), _songCache.ActiveColumns[col].Width, _songCache.LineHeight - _theme.Padding + 2);
//stringFormat.Trimming = StringTrimming.EllipsisCharacter;
//stringFormat.Alignment = StringAlignment.Near;
// Use bold for ArtistName and DiscTrackNumber
if (column.FieldName == "ArtistName" || column.FieldName == "DiscTrackNumber")
context.DrawText(value, rect, _theme.TextColor, _theme.FontNameBold, _theme.FontSize);
else
context.DrawText(value, rect, _theme.TextColor, _theme.FontName, _theme.FontSize);
}
}
state.OffsetX += column.Width;
}
}
private void DrawAlbumCoverZone(IGraphicsContext context, int row, AudioFile audioFile2, DrawCellState state)
{
var pen = new BasicPen();
var penTransparent = new BasicPen();
var brushGradient = new BasicGradientBrush();
var item = _items[row];
//string albumTitle = audioFile != null ? audioFile.AlbumTitle : state.CurrentAlbumTitle; // if this is an empty row, keep last album title
// Check for an album title change (or the last item of the grid)
if (state.CurrentAlbumArtKey == item.AlbumArtKey)
return;
state.CurrentAlbumArtKey = item.AlbumArtKey;
int albumCoverStartIndex = 0;
int albumCoverEndIndex = 0;
// For displaying the album cover, we need to know how many songs of the same album are bundled together
// Start by getting the start index
for (int c = row; c > 0; c--)
{
var previousItem = _items[c];
if (previousItem.AlbumArtKey != item.AlbumArtKey)
{
albumCoverStartIndex = c + 1;
break;
}
}
// Find the end index
for (int c = row + 1; c < _items.Count; c++)
{
var nextItem = _items[c];
// If the album title is different, this means we found the next album title
if (nextItem.AlbumArtKey != item.AlbumArtKey)
{
albumCoverEndIndex = c - 1;
break;
}
// If this is the last item of the grid...
else if (c == _items.Count - 1)
{
albumCoverEndIndex = c;
break;
}
}
var audioFile = _items[albumCoverStartIndex].AudioFile;
// Calculate y and height
int scrollbarOffsetY = (_startLineNumber * _songCache.LineHeight) - VerticalScrollBar.Value;
int y = ((albumCoverStartIndex - _startLineNumber) * _songCache.LineHeight) + _songCache.LineHeight + scrollbarOffsetY;
// Calculate the height of the album cover zone (+1 on end index because the array is zero-based)
int linesToCover = Math.Min(MinimumRowsPerAlbum, (albumCoverEndIndex + 1 - albumCoverStartIndex));
int albumCoverZoneHeight = linesToCover * _songCache.LineHeight;
int heightWithPadding = Math.Min(albumCoverZoneHeight - (_theme.Padding * 2), _songCache.ActiveColumns[0].Width - (_theme.Padding * 2));
// Make sure the height is at least zero (not necessary to draw anything!)
if (albumCoverZoneHeight > 0)
{
// Draw album cover background
var rectAlbumCover = new BasicRectangle(0 - HorizontalScrollBar.Value, y, _songCache.ActiveColumns[0].Width, albumCoverZoneHeight);
brushGradient = new BasicGradientBrush(_theme.AlbumCoverBackgroundColor, _theme.AlbumCoverBackgroundColor, 90);
context.DrawRectangle(rectAlbumCover, brushGradient, penTransparent);
// Measure available width for text
int widthAvailableForText = _columns[0].Width - (_theme.Padding * 2);
// Display titles depending on if an album art was found
var rectAlbumCoverArt = new BasicRectangle();
var rectAlbumTitleText = new BasicRectangle();
var rectArtistNameText = new BasicRectangle();
var sizeAlbumTitle = new BasicRectangle();
var sizeArtistName = new BasicRectangle();
bool useAlbumArtOverlay = false;
bool displayArtistNameAndAlbumTitle = false;
// Try to extract image from cache
IBasicImage imageAlbumCover = null;
SongGridViewImageCache cachedImage = null;
try
{
cachedImage = _imageCache.FirstOrDefault(x => x.Key == item.AlbumArtKey);
}
catch (Exception ex)
{
Tracing.Log(ex);
}
if (cachedImage != null)
imageAlbumCover = cachedImage.Image;
// Album art not found in cache; try to find an album cover in one of the file
if (cachedImage == null)
{
try
{
// Check if the album cover is already in the pile
bool albumCoverFound = false;
foreach (var arg in _workerUpdateAlbumArtPile)
{
// Match by file path
if (arg.AudioFile.FilePath.ToUpper() == audioFile.FilePath.ToUpper())
{
albumCoverFound = true;
}
}
// Add to the pile only if the album cover isn't already in it
if (!albumCoverFound)
{
// Add item to update album art worker pile
var arg = new SongGridViewBackgroundWorkerArgument();
arg.AudioFile = audioFile;
arg.LineIndex = row;
arg.RectAlbumArt = new BasicRectangle(0, 0, heightWithPadding, heightWithPadding);
_workerUpdateAlbumArtPile.Add(arg);
}
}
catch(Exception ex)
{
Console.WriteLine("SongGridViewControl - Failed to load cache image: {0}" , ex);
}
}
// There are at least two lines; is there an album cover to display?
if (imageAlbumCover == null)
{
// There is no album cover to display; display only text.
// Set string format
//stringFormat.Alignment = StringAlignment.Center;
//stringFormat.Trimming = StringTrimming.EllipsisWord;
sizeArtistName = context.MeasureText(audioFile.ArtistName, new BasicRectangle(0, 0, widthAvailableForText, heightWithPadding), _theme.FontNameAlbumArtTitle, _theme.FontSize + 2);
sizeAlbumTitle = context.MeasureText(audioFile.AlbumTitle, new BasicRectangle(0, 0, widthAvailableForText, heightWithPadding), _theme.FontNameAlbumArtSubtitle, _theme.FontSize);
// Display the album title at the top of the zome
rectArtistNameText = new BasicRectangle(_theme.Padding - HorizontalScrollBar.Value, y + _theme.Padding, widthAvailableForText, heightWithPadding);
rectAlbumTitleText = new BasicRectangle(_theme.Padding - HorizontalScrollBar.Value, y + _theme.Padding + sizeArtistName.Height, widthAvailableForText, heightWithPadding);
displayArtistNameAndAlbumTitle = true;
useAlbumArtOverlay = true;
}
else
{
// There is an album cover to display with more than 2 lines.
// Set string format
//stringFormat.Alignment = StringAlignment.Near;
//stringFormat.Trimming = StringTrimming.EllipsisWord;
float widthRemainingForText = _columns[0].Width - (_theme.Padding * 3) - heightWithPadding;
sizeArtistName = context.MeasureText(audioFile.ArtistName, new BasicRectangle(0, 0, widthRemainingForText, heightWithPadding), _theme.FontNameAlbumArtTitle, _theme.FontSize + 2);
sizeAlbumTitle = context.MeasureText(audioFile.AlbumTitle, new BasicRectangle(0, 0, widthRemainingForText, heightWithPadding), _theme.FontNameAlbumArtSubtitle, _theme.FontSize);
// Try to center the cover art + padding + max text width
//float maxWidth = Math.Max(sizeArtistName.Width, sizeAlbumTitle.Width);
float albumCoverX = _theme.Padding - 2; // (_columns[0].Width - heightWithPadding - _theme.Padding - _theme.Padding - maxWidth) / 2;
float artistNameY = _theme.Padding + 1; // (albumCoverZoneHeight - sizeArtistName.Height - sizeAlbumTitle.Height) / 2;
// Display the album title at the top of the zome
rectArtistNameText = new BasicRectangle(albumCoverX + heightWithPadding + _theme.Padding - HorizontalScrollBar.Value, y + artistNameY, widthRemainingForText, heightWithPadding);
rectAlbumTitleText = new BasicRectangle(albumCoverX + heightWithPadding + _theme.Padding - HorizontalScrollBar.Value, y + artistNameY + sizeArtistName.Height + (_theme.Padding / 8f), widthRemainingForText, heightWithPadding);
rectAlbumCoverArt = new BasicRectangle(albumCoverX - HorizontalScrollBar.Value, y + _theme.Padding, heightWithPadding, heightWithPadding);
displayArtistNameAndAlbumTitle = widthRemainingForText > 20;
useAlbumArtOverlay = true;
}
// Display album cover
if (imageAlbumCover != null)
context.DrawImage(rectAlbumCoverArt, new BasicRectangle(0, 0, imageAlbumCover.ImageSize.Width, imageAlbumCover.ImageSize.Height), imageAlbumCover.Image);
//context.DrawImage(rectAlbumCoverArt, new BasicRectangle(0, 0, rectAlbumCoverArt.Width, rectAlbumCoverArt.Height), imageAlbumCover.Image);
// if (useAlbumArtOverlay)
// {
// // Draw artist name and album title background
// var rectArtistNameBackground = new BasicRectangle(rectArtistNameText.X - (_theme.Padding / 2), rectArtistNameText.Y - (_theme.Padding / 4), sizeArtistName.Width + _theme.Padding, sizeArtistName.Height + (_theme.Padding / 2));
// var rectAlbumTitleBackground = new BasicRectangle(rectAlbumTitleText.X - (_theme.Padding / 2), rectAlbumTitleText.Y - (_theme.Padding / 4), sizeAlbumTitle.Width + _theme.Padding, sizeAlbumTitle.Height + (_theme.Padding / 2));
// var brushTextBackground = new BasicBrush(new BasicColor(0, 0, 0, 30));
// context.DrawRectangle(rectArtistNameBackground, brushTextBackground, penTransparent);
// context.DrawRectangle(rectAlbumTitleBackground, brushTextBackground, penTransparent);
// }
if (displayArtistNameAndAlbumTitle)
{
context.DrawText(audioFile.ArtistName, rectArtistNameText, _theme.HeaderTextColor, _theme.FontNameAlbumArtTitle, _theme.FontSize + 2);
context.DrawText(audioFile.AlbumTitle, rectAlbumTitleText, _theme.HeaderTextColor, _theme.FontNameAlbumArtSubtitle, _theme.FontSize);
}
// Draw horizontal line to distinguish albums
// Part 1: Draw line over grid
pen = new BasicPen(new BasicBrush(new BasicColor(180, 180, 180)), 1);
context.DrawLine(new BasicPoint(_columns[0].Width, y), new BasicPoint(Frame.Width, y), pen);
// Part 2: Draw line over album art zone, in a lighter color
pen = new BasicPen(new BasicBrush(new BasicColor(115, 115, 115)), 1);
context.DrawLine(new BasicPoint(0, y), new BasicPoint(_columns[0].Width, y), pen);
}
}