JD2022-TU1/main/tools/framework/JD.Timeline/Karaoke/KaraokeTrackTreeItem.cs

using System.ComponentModel;
using System.Drawing;
using Divelements.SandGrid;
using JD.Timeline.View.ClipView;
using JetBrains.Annotations;
using JD.Serialization;

namespace JD.Timeline.View.TrackTreeView
{
    public class KaraokeTrackTreeItem : ClipTrackTreeItem, INotifyPropertyChanged
    {
        private bool _isPressed;
        private static readonly Font _textFont = new Font(FontFamily.GenericSansSerif, 7, FontStyle.Bold);
        private static readonly Color _textColor = Color.Orange;
        private static readonly StringFormat _stringFormat = new StringFormat
        {
            Alignment = StringAlignment.Far,
            LineAlignment = StringAlignment.Center
        };

        public KaraokeTrackTreeItem(TapeTrackWidget track)
            : base(track)
        {
            IsPressed = false;
            if (KaraokeTrack.ContentType != KaraokeTrack.ContentType_Enum.KaraokeContent_Singing)
            {
                Track.Fixed = true;
            }

            this.AllowSorting = false;
            this.AllowDragging = false;
        }

        public override void Dispose()
        {
        }

        public KaraokeTrack KaraokeTrack
        {
            get { return (KaraokeTrack) (TrackView.Track); }
        }

        public override string Text
        {
            get { return KaraokeTrack.ContentType != KaraokeTrack.ContentType_Enum.KaraokeContent_Singing ? KaraokeTrack.Name : ""; }
        }

        public bool IsPressed
        {
            get { return _isPressed; }
            set
            {
                if (_isPressed != value)
                {
                    _isPressed = value;
                    if (Hierarchy != null)
                    {
                        Hierarchy.Grid.Invalidate();
                    }
                    OnPropertyChanged("IsPressed");
                }
            }
        }

        public override bool SelectItemsOnClick
        {
            get { return KaraokeTrack.ContentType != KaraokeTrack.ContentType_Enum.KaraokeContent_Singing; }
        }

        public override bool DrawRowForeground(Divelements.SandGrid.Rendering.RenderingContext context, Rectangle rectangle, GridColumn[] columns, Divelements.SandGrid.Rendering.TextFormattingInformation[] informations, Divelements.SandGrid.GridRow row)
        {
            if (KaraokeTrack.ContentType != KaraokeTrack.ContentType_Enum.KaraokeContent_Singing)
            {
                return base.DrawRowForeground(context, rectangle, columns, informations, row);
            }
            
            UpdateHeight();

            bool isMidiNoteSharp = MidiUtils.IsMidiNoteSharp(KaraokeTrack.MidiNote);
            if (isMidiNoteSharp)
            {
                context.Graphics.FillRectangle(StyleSheet.Brushes[Color.Ivory], rectangle);
                var blackKeyrectangle = new Rectangle(rectangle.X, rectangle.Y, (int)(rectangle.Width*0.65), rectangle.Height);
                context.Graphics.FillRectangle(StyleSheet.Brushes[IsPressed ? Color.Orange : Color.Black], blackKeyrectangle);
            }
            else
            {
                context.Graphics.FillRectangle(StyleSheet.Brushes[IsPressed ? Color.Orange : Color.Ivory], rectangle);
            }

            using (var pen = new Pen(StyleSheet.LineColor))
            {
                context.Graphics.DrawRectangle(pen, rectangle);
            }

			//If the track midi note is a C (Do)
            if (KaraokeTrack.MidiNote%12 == 0)
            {
                var textlocation = new PointF(rectangle.Right - 5, rectangle.Top + rectangle.Height/2);
                context.Graphics.DrawString(KaraokeTrack.Name, _textFont, StyleSheet.Brushes[_textColor], textlocation.X, textlocation.Y, _stringFormat);
            }
            

            return false;
        }

        protected override void OnMouseDown(System.Windows.Forms.MouseEventArgs e, Point gridClickPosition)
        {
            IsPressed = true;
        }

        protected override void OnMouseUp(System.Windows.Forms.MouseEventArgs e, Point gridClickPosition)
        {
            IsPressed = false;
        }
		
        protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e, Point gridClickPosition)
        {
            //The proper behaviour would be to have a MouseEnter and MouseLeave event, and trigger
            //note off when leaving the key
            IsPressed = false;
        }

        public event PropertyChangedEventHandler PropertyChanged;

        [NotifyPropertyChangedInvocator]
        protected virtual void OnPropertyChanged(string propertyName)
        {
            PropertyChangedEventHandler handler = PropertyChanged;
            if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}