using System; using System.Diagnostics; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; namespace HeuristicLab.Visualization { public partial class CanvasUI : Control { private readonly Canvas mainCanvas = new Canvas(); private MouseEventListener mouseEventListener; public CanvasUI() { InitializeComponent(); } public Canvas MainCanvas { get { return mainCanvas; } } public MouseEventListener MouseEventListener { get { return mouseEventListener; } set { mouseEventListener = value; } } protected override void OnPaint(PaintEventArgs pe) { try { Graphics g = pe.Graphics; g.SmoothingMode = SmoothingMode.AntiAlias; g.FillRectangle(Brushes.White, ClientRectangle); mainCanvas.Draw(g, ClientRectangle); g.DrawRectangle(Pens.Black, 0, 0, Width - 1, Height - 1); base.OnPaint(pe); } catch (Exception e) { Debug.WriteLine(e); } } protected override void OnResize(EventArgs e) { Invalidate(); base.OnResize(e); } private void CanvasUI_MouseMove(object sender, MouseEventArgs e) { if (mouseEventListener != null) { mouseEventListener.MouseMove(e.Location); } } private void CanvasUI_MouseUp(object sender, MouseEventArgs e) { if (mouseEventListener != null) { mouseEventListener.MouseUp(e.Location); } } } }