ucis.core: FBGUI/FBGUI.cs comparison

comparison FBGUI/FBGUI.cs @ 30:24e918d2ac18

FBGUI: Added per-control Cursor handling, added more cursors for Form operations, fixed ImageBox image sizing

author	Ivo Smits <Ivo@UCIS.nl>
date	Thu, 18 Apr 2013 18:48:38 +0200
parents	FBGUI.cs@5bfc6c68591e
children	af27992b5972

comparison

equal deleted inserted replaced

-:2ecb82eea559
+:24e918d2ac18
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Drawing.Imaging;
+using System.IO;
+using System.Reflection;
+using System.Threading;
+using System.Windows.Forms;
+using UCIS.VNCServer;
+using ThreadingTimer = System.Threading.Timer;
+namespace UCIS.FBGUI {
+	public interface IFBGControl {
+		Rectangle Bounds { get; set; }
+		Boolean Visible { get; set; }
+		FBGCursor Cursor { get; }
+		void Paint(Graphics g);
+		void MouseMove(Point position, MouseButtons buttons);
+		void MouseDown(Point position, MouseButtons buttons);
+		void MouseUp(Point position, MouseButtons buttons);
+		void KeyDown(Keys key);
+		void KeyPress(Char keyChar);
+		void KeyUp(Keys key);
+		void LostKeyboardCapture();
+		void Orphaned();
+	}
+	public interface IFBGContainerControl {
+		void Invalidate(IFBGControl control, Rectangle rect);
+		void AddControl(IFBGControl control);
+		void RemoveControl(IFBGControl control);
+		Boolean CaptureMouse(IFBGControl control, Boolean capture);
+		Boolean CaptureKeyboard(IFBGControl control, Boolean capture);
+	}
+	public class FBGControl : IFBGControl {
+		private Rectangle bounds = new Rectangle(0, 0, 100, 100);
+		private Color backColor = Color.Transparent;
+		private Boolean visible = true;
+		protected FBGCursor CurrentCursor = null;
+		public virtual IFBGContainerControl Parent { get; private set; }
+		public event MouseEventHandler OnMouseDown;
+		public event MouseEventHandler OnMouseMove;
+		public event MouseEventHandler OnMouseUp;
+		public event PaintEventHandler OnPaint;
+		public event EventHandler OnResize;
+		public event EventHandler OnMove;
+		public FBGControl(IFBGContainerControl parent) {
+			this.Parent = parent;
+			if (Parent != null) Parent.AddControl(this);
+		}
+		public virtual Rectangle Bounds {
+			get { return bounds; }
+			set {
+				if (bounds == value) return;
+				Rectangle old = bounds;
+				bounds = value;
+				Parent.Invalidate(this, Rectangle.Union(new Rectangle(Point.Empty, value.Size), new Rectangle(old.X - value.X, old.Y - value.Y, old.Width, old.Height)));
+				if (value.Location != old.Location) RaiseEvent(OnMove);
+				if (value.Size != old.Size) RaiseEvent(OnResize);
+			}
+		}
+		public virtual Boolean Visible {
+			get { return visible; }
+			set {
+				visible = value;
+				Invalidate();
+			}
+		}
+		FBGCursor IFBGControl.Cursor { get { return CurrentCursor; } }
+		public virtual FBGCursor Cursor { get { return CurrentCursor; } set { CurrentCursor = value; } }
+		public Size Size { get { return Bounds.Size; } set { Rectangle r = Bounds; r.Size = value; Bounds = r; } }
+		public Point Location { get { return Bounds.Location; } set { Rectangle r = Bounds; r.Location = value; Bounds = r; } }
+		public int Left { get { return Bounds.Left; } set { Rectangle r = Bounds; r.X = value; Bounds = r; } }
+		public int Top { get { return Bounds.Top; } set { Rectangle r = Bounds; r.Y = value; Bounds = r; } }
+		public int Width { get { return Bounds.Width; } set { Rectangle r = Bounds; r.Width = value; Bounds = r; } }
+		public int Height { get { return Bounds.Height; } set { Rectangle r = Bounds; r.Height = value; Bounds = r; } }
+		public virtual Color BackColor { get { return backColor; } set { if (backColor == value) return; backColor = value; Invalidate(); } }
+		public virtual void Invalidate() {
+			Invalidate(new Rectangle(Point.Empty, Bounds.Size));
+		}
+		public virtual void Invalidate(Rectangle rect) {
+			Parent.Invalidate(this, rect);
+		}
+		void IFBGControl.Paint(Graphics g) { Paint(g); }
+		void IFBGControl.MouseMove(Point position, MouseButtons buttons) { MouseMove(position, buttons); }
+		void IFBGControl.MouseDown(Point position, MouseButtons buttons) { MouseDown(position, buttons); }
+		void IFBGControl.MouseUp(Point position, MouseButtons buttons) { MouseUp(position, buttons); }
+		void IFBGControl.KeyDown(Keys g) { KeyDown(g); }
+		void IFBGControl.KeyPress(Char g) { KeyPress(g); }
+		void IFBGControl.KeyUp(Keys g) { KeyUp(g); }
+		void IFBGControl.LostKeyboardCapture() { LostKeyboardCapture(); }
+		void IFBGControl.Orphaned() { Orphaned(); }
+		protected virtual void Paint(Graphics g) {
+			if (!visible) return;
+			if (backColor.A == 0xff) g.Clear(backColor);
+			else if (backColor.A != 0) using (Brush brush = new SolidBrush(backColor)) g.FillRectangle(brush, g.ClipBounds);
+			RaiseEvent(OnPaint, new PaintEventArgs(g, Rectangle.Round(g.ClipBounds)));
+		}
+		protected virtual void MouseMove(Point position, MouseButtons buttons) { RaiseEvent(OnMouseMove, new MouseEventArgs(buttons, 0, position.X, position.Y, 0)); }
+		protected virtual void MouseDown(Point position, MouseButtons buttons) { RaiseEvent(OnMouseDown, new MouseEventArgs(buttons, 1, position.X, position.Y, 0)); }
+		protected virtual void MouseUp(Point position, MouseButtons buttons) { RaiseEvent(OnMouseUp, new MouseEventArgs(buttons, 1, position.X, position.Y, 0)); }
+		protected virtual Boolean CaptureMouse(Boolean capture) {
+			return Parent.CaptureMouse(this, capture);
+		}
+		protected virtual void KeyDown(Keys key) { }
+		protected virtual void KeyPress(Char keyChar) { }
+		protected virtual void KeyUp(Keys key) { }
+		protected virtual Boolean CaptureKeyboard(Boolean capture) {
+			return Parent.CaptureKeyboard(this, capture);
+		}
+		protected virtual void LostKeyboardCapture() { }
+		protected virtual void Orphaned() {
+			//IDisposable disp = this as IDisposable;
+			//if (!ReferenceEquals(disp, null)) disp.Dispose();
+		}
+		protected void RaiseEvent(KeyEventHandler eh, KeyEventArgs ea) { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent(KeyPressEventHandler eh, KeyPressEventArgs ea) { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent(MouseEventHandler eh, MouseEventArgs ea) { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent(PaintEventHandler eh, PaintEventArgs ea) { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent<T>(EventHandler<T> eh, T ea) where T : EventArgs { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent(EventHandler eh, EventArgs ea) { if (eh != null) eh(this, ea); }
+		protected void RaiseEvent(EventHandler eh) { if (eh != null) eh(this, new EventArgs()); }
+	}
+	public class FBGContainerControl : FBGControl, IFBGContainerControl {
+		protected List<IFBGControl> controls = new List<IFBGControl>();
+		protected IFBGControl mouseCaptureControl = null;
+		protected IFBGControl keyboardCaptureControl = null;
+		private Rectangle childarea = Rectangle.Empty;
+		protected FBGCursor DefaultCursor = null;
+		public Rectangle ClientRectangle { get { return childarea; } protected set { childarea = value; Invalidate(); } }
+		public Size ClientSize { get { return childarea.Size; } set { Bounds = new Rectangle(Bounds.Location, Bounds.Size - childarea.Size + value); } }
+		public override FBGCursor Cursor { get { return DefaultCursor; } set { DefaultCursor = value; } }
+		public FBGContainerControl(IFBGContainerControl parent) : base(parent) { }
+		void IFBGContainerControl.AddControl(IFBGControl control) { AddControl(control); }
+		protected virtual void AddControl(IFBGControl control) {
+			controls.Add(control);
+			if (control.Visible) Invalidate(control);
+		}
+		public virtual void RemoveControl(IFBGControl control) {
+			if (controls.Remove(control)) {
+				if (control.Visible) Invalidate(control);
+				CaptureMouse(control, false);
+				CaptureKeyboard(control, false);
+				control.Orphaned();
+			}
+		}
+		public virtual Point PointToChild(IFBGControl child, Point point) {
+			return point - (Size)child.Bounds.Location - (Size)ClientRectangle.Location;
+		}
+		public virtual Point PointFromChild(IFBGControl child, Point point) {
+			return point + (Size)child.Bounds.Location + (Size)ClientRectangle.Location;
+		}
+		public virtual void BringControlToFront(IFBGControl control) {
+			if (controls.Count == 0) return;
+			if (ReferenceEquals(controls[controls.Count - 1], control)) return;
+			if (!controls.Remove(control)) return;
+			controls.Add(control);
+			if (control.Visible) Invalidate(control);
+		}
+		public virtual void Invalidate(IFBGControl control) {
+			Invalidate(new Rectangle(PointFromChild(control, Point.Empty), control.Bounds.Size));
+		}
+		public virtual void Invalidate(IFBGControl control, Rectangle rect) {
+			Invalidate(new Rectangle(PointFromChild(control, rect.Location), rect.Size));
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			if (controls == null) return;
+			GraphicsState state2 = null;
+			if (!childarea.IsEmpty) {
+				state2 = g.Save();
+				g.TranslateTransform(childarea.X, childarea.Y, MatrixOrder.Append);
+				g.IntersectClip(new Rectangle(Point.Empty, childarea.Size));
+			}
+			foreach (IFBGControl control in controls) {
+				if (!control.Visible) continue;
+				if (control.Bounds.Width <= 0 || control.Bounds.Height <= 0) continue;
+				if (!g.ClipBounds.IntersectsWith((RectangleF)control.Bounds)) continue;
+				GraphicsState state = g.Save();
+				g.TranslateTransform(control.Bounds.X, control.Bounds.Y, MatrixOrder.Append);
+				g.IntersectClip(new Rectangle(Point.Empty, control.Bounds.Size));
+				control.Paint(g);
+				g.Restore(state);
+			}
+			if (state2 != null) g.Restore(state2);
+		}
+		public IFBGControl FindControlAtPosition(Point p) {
+			if (!childarea.IsEmpty && !childarea.Contains(p)) return null;
+			p.Offset(-childarea.X, -childarea.Y);
+			return ((List<IFBGControl>)controls).FindLast(delegate(IFBGControl control) { return control.Visible && control.Bounds.Contains(p); });
+		}
+		protected override void MouseMove(Point position, MouseButtons buttons) {
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : FindControlAtPosition(position);
+			if (control == null) {
+				base.MouseMove(position, buttons);
+			} else {
+				control.MouseMove(PointToChild(control, position), buttons);
+			}
+			CurrentCursor = control == null || control.Cursor == null ? DefaultCursor : control.Cursor;
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : FindControlAtPosition(position);
+			if (control == null) {
+				base.MouseDown(position, buttons);
+			} else {
+				control.MouseDown(PointToChild(control, position), buttons);
+			}
+			CurrentCursor = control == null || control.Cursor == null ? DefaultCursor : control.Cursor;
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : FindControlAtPosition(position);
+			if (control == null) {
+				base.MouseUp(position, buttons);
+			} else {
+				control.MouseUp(PointToChild(control, position), buttons);
+			}
+			CurrentCursor = control == null || control.Cursor == null ? DefaultCursor : control.Cursor;
+		}
+		Boolean IFBGContainerControl.CaptureMouse(IFBGControl control, Boolean capture) { return CaptureMouse(control, capture); }
+		protected Boolean CaptureMouse(IFBGControl control, Boolean capture) {
+			if (capture && !ReferenceEquals(mouseCaptureControl, null)) return false;
+			if (!capture && !ReferenceEquals(mouseCaptureControl, control)) return false;
+			if (!CaptureMouse(capture)) return false;
+			mouseCaptureControl = capture ? control : null;
+			return true;
+		}
+		protected override void KeyDown(Keys key) {
+			if (ReferenceEquals(keyboardCaptureControl, null)) base.KeyDown(key);
+			else keyboardCaptureControl.KeyDown(key);
+		}
+		protected override void KeyPress(Char keyChar) {
+			if (ReferenceEquals(keyboardCaptureControl, null)) base.KeyPress(keyChar);
+			else keyboardCaptureControl.KeyPress(keyChar);
+		}
+		protected override void KeyUp(Keys key) {
+			if (ReferenceEquals(keyboardCaptureControl, null)) base.KeyUp(key);
+			else keyboardCaptureControl.KeyUp(key);
+		}
+		Boolean IFBGContainerControl.CaptureKeyboard(IFBGControl control, Boolean capture) { return CaptureKeyboard(control, capture); }
+		protected Boolean CaptureKeyboard(IFBGControl control, Boolean capture) {
+			if (!capture && !ReferenceEquals(keyboardCaptureControl, control)) return false;
+			if (!CaptureKeyboard(capture)) return false;
+			IFBGControl prev = keyboardCaptureControl;
+			keyboardCaptureControl = capture ? control : null;
+			if (prev != null) LostKeyboardCapture();
+			return true;
+		}
+		protected override void LostKeyboardCapture() {
+			base.LostKeyboardCapture();
+			if (keyboardCaptureControl != null) keyboardCaptureControl.LostKeyboardCapture();
+		}
+		protected override void Orphaned() {
+			base.Orphaned();
+			IFBGControl[] c = controls.ToArray();
+			controls.Clear();
+			foreach (IFBGControl control in c) control.Orphaned();
+			mouseCaptureControl = null;
+			keyboardCaptureControl = null;
+		}
+	}
+	public class FBGDockContainer : FBGContainerControl {
+		private Dictionary<IFBGControl, DockStyle> dockStyles = new Dictionary<IFBGControl, DockStyle>();
+		private Dictionary<IFBGControl, AnchorStyles> anchorStyles = new Dictionary<IFBGControl, AnchorStyles>();
+		private Rectangle oldBounds;
+		public FBGDockContainer(IFBGContainerControl parent)
+			: base(parent) {
+			oldBounds = ClientRectangle.IsEmpty ? Bounds : new Rectangle(Bounds.Location + (Size)ClientRectangle.Location, ClientRectangle.Size);
+		}
+		protected override void AddControl(IFBGControl control) {
+			base.AddControl(control);
+		}
+		public override void BringControlToFront(IFBGControl control) {
+			base.BringControlToFront(control);
+			if (dockStyles.ContainsKey(control)) DoLayout();
+		}
+		public override void RemoveControl(IFBGControl control) {
+			base.RemoveControl(control);
+			if (dockStyles.Remove(control)) DoLayout();
+		}
+		public override Rectangle Bounds {
+			get { return base.Bounds; }
+			set {
+				base.Bounds = value;
+				DoLayout();
+				Rectangle newBounds = ClientRectangle.IsEmpty ? Bounds : new Rectangle(Bounds.Location + (Size)ClientRectangle.Location, ClientRectangle.Size);
+				foreach (KeyValuePair<IFBGControl, AnchorStyles> c in anchorStyles) {
+					Rectangle b = c.Key.Bounds;
+					if ((c.Value & AnchorStyles.Right) != 0) {
+						if ((c.Value & AnchorStyles.Left) == 0) b.X += newBounds.Width - oldBounds.Width;
+						else b.Width += newBounds.Width - oldBounds.Width;
+					} else if ((c.Value & AnchorStyles.Left) == 0) b.X += newBounds.X - oldBounds.X;
+					if ((c.Value & AnchorStyles.Bottom) != 0) {
+						if ((c.Value & AnchorStyles.Top) == 0) b.Y += newBounds.Height - oldBounds.Height;
+						else b.Height += newBounds.Height - oldBounds.Height;
+					} else if ((c.Value & AnchorStyles.Top) == 0) b.Y += newBounds.Y - oldBounds.Y;
+					c.Key.Bounds = b;
+				}
+				oldBounds = newBounds;
+			}
+		}
+		public DockStyle GetDockStyle(IFBGControl control) {
+			DockStyle ds;
+			if (!dockStyles.TryGetValue(control, out ds)) ds = DockStyle.None;
+			return ds;
+		}
+		public void SetDockStyle(IFBGControl control, DockStyle style) {
+			if (style == DockStyle.None) {
+				if (dockStyles.Remove(control)) DoLayout();
+			} else if (controls.Contains(control)) {
+				anchorStyles.Remove(control);
+				dockStyles[control] = style;
+				DoLayout();
+			}
+		}
+		public AnchorStyles GetAnchorStyle(IFBGControl control) {
+			AnchorStyles ds;
+			if (!anchorStyles.TryGetValue(control, out ds)) ds = AnchorStyles.Left | AnchorStyles.Top;
+			return ds;
+		}
+		public void SetAnchorStyle(IFBGControl control, AnchorStyles style) {
+			if (style == (AnchorStyles.Left | AnchorStyles.Top)) {
+				anchorStyles.Remove(control);
+			} else if (controls.Contains(control)) {
+				dockStyles.Remove(control);
+				anchorStyles[control] = style;
+			}
+		}
+		public void SetAnchor(IFBGControl control, AnchorStyles style, int value) {
+			if (controls.Contains(control)) {
+				AnchorStyles oldstyle;
+				if (!anchorStyles.TryGetValue(control, out oldstyle)) oldstyle = AnchorStyles.Left | AnchorStyles.Top;
+				Rectangle b = control.Bounds;
+				switch (style) {
+					case AnchorStyles.None: throw new ArgumentException("style", "Anchor style can not be None");
+					case AnchorStyles.Left: b.X = value; break;
+					case AnchorStyles.Top: b.Y = value; break;
+					case AnchorStyles.Right:
+						if ((oldstyle & AnchorStyles.Left) == 0) b.X = ClientRectangle.Width - b.Width - value;
+						else b.Width = ClientRectangle.Width - b.X - value;
+						break;
+					case AnchorStyles.Bottom:
+						if ((oldstyle & AnchorStyles.Top) == 0) b.Y = ClientRectangle.Height - b.Height - value;
+						else b.Height = ClientRectangle.Height - b.Y - value;
+						break;
+					default: throw new ArgumentOutOfRangeException("style", "The value vor the style argument is invalid");
+				}
+				control.Bounds = b;
+				dockStyles.Remove(control);
+				anchorStyles[control] = oldstyle | style;
+			}
+		}
+		private void DoLayout() {
+			Rectangle a = new Rectangle(Point.Empty, ClientRectangle.IsEmpty ? Bounds.Size : ClientRectangle.Size);
+			foreach (KeyValuePair<IFBGControl, DockStyle> c in dockStyles) {
+				Rectangle b = c.Key.Bounds;
+				if (c.Value == DockStyle.Left) {
+					b.Location = a.Location;
+					b.Height = a.Height;
+					a.X += b.Width;
+					a.Width -= b.Width;
+				} else if (c.Value == DockStyle.Top) {
+					b.Location = a.Location;
+					b.Width = a.Width;
+					a.Y += b.Height;
+					a.Height -= b.Height;
+				} else if (c.Value == DockStyle.Right) {
+					b.X = a.X + a.Width - b.Width;
+					b.Y = a.Y;
+					b.Height = a.Height;
+					a.Width -= b.Width;
+				} else if (c.Value == DockStyle.Bottom) {
+					b.X = a.X;
+					b.Y = a.Y + a.Height - b.Height;
+					b.Width = a.Width;
+					a.Height -= b.Height;
+				} else if (c.Value == DockStyle.Fill) {
+					b = a;
+				}
+				c.Key.Bounds = b;
+				if (a.Width < 0) a.Width = 0;
+				if (a.Height < 0) a.Height = 0;
+			}
+		}
+	}
+	public class FBGGroupBox : FBGDockContainer {
+		private String text = String.Empty;
+		public FBGGroupBox(IFBGContainerControl parent)
+			: base(parent) {
+			ClientRectangle = new Rectangle(1, 15, Bounds.Width - 2, Bounds.Height - 17);
+		}
+		public override Rectangle Bounds {
+			get { return base.Bounds; }
+			set {
+				ClientRectangle = new Rectangle(1, 15, value.Width - 2, value.Height - 17);
+				base.Bounds = value;
+			}
+		}
+		public String Text { get { return text; } set { if (text == value) return; text = value; Invalidate(new Rectangle(0, 0, Bounds.Width, 15)); } }
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawRectangle(Pens.Gray, 0, 6, Bounds.Width - 1, Bounds.Height - 7);
+			SizeF ss = g.MeasureString(Text, SystemFonts.DefaultFont, new Size(Bounds.Width - 10 - 9, 15));
+			g.FillRectangle(SystemBrushes.Control, 9, 0, ss.Width, ss.Height);
+			g.DrawString(Text, SystemFonts.DefaultFont, Brushes.DarkBlue, new Rectangle(9, 0, Bounds.Width - 10 - 9, 15));
+		}
+	}
+	public class WinFormsFBGHost : Control, IFBGContainerControl {
+		private IFBGControl childControl = null;
+		private IFBGControl mouseCaptureControl = null;
+		private IFBGControl keyboardCaptureControl = null;
+		public IFBGControl ChildControl { get { return childControl; } }
+		public WinFormsFBGHost() {
+			DoubleBuffered = true;
+		}
+		public virtual Point PointToChild(IFBGControl child, Point point) {
+			return point - (Size)child.Bounds.Location;
+		}
+		public virtual Point PointFromChild(IFBGControl child, Point point) {
+			return point + (Size)child.Bounds.Location;
+		}
+		void IFBGContainerControl.Invalidate(IFBGControl control, Rectangle rect) {
+			Invalidate(new Rectangle(PointFromChild(control, rect.Location), rect.Size));
+		}
+		void IFBGContainerControl.AddControl(IFBGControl control) {
+			if (!ReferenceEquals(childControl, null)) throw new InvalidOperationException("This container can have only one child control");
+			childControl = control;
+			control.Bounds = new Rectangle(Point.Empty, ClientSize);
+			Invalidate(control.Bounds);
+		}
+		void IFBGContainerControl.RemoveControl(IFBGControl control) {
+			if (!ReferenceEquals(childControl, control)) return;
+			childControl = null;
+			Invalidate(control.Bounds);
+			if (mouseCaptureControl == control) mouseCaptureControl = null;
+			if (keyboardCaptureControl == control) control = null;
+			control.Orphaned();
+		}
+		Boolean IFBGContainerControl.CaptureMouse(IFBGControl control, Boolean capture) {
+			if (capture && !ReferenceEquals(mouseCaptureControl, null)) return false;
+			if (!capture && !ReferenceEquals(mouseCaptureControl, control)) return false;
+			mouseCaptureControl = capture ? control : null;
+			return true;
+		}
+		Boolean IFBGContainerControl.CaptureKeyboard(IFBGControl control, Boolean capture) {
+			if (!capture && !ReferenceEquals(keyboardCaptureControl, control)) return false;
+			keyboardCaptureControl = capture ? control : null;
+			return true;
+		}
+		protected override void OnPaint(PaintEventArgs e) {
+			base.OnPaint(e);
+			Graphics g = e.Graphics;
+			GraphicsState state = g.Save();
+			g.SetClip(e.ClipRectangle);
+			if (ReferenceEquals(childControl, null)) return;
+			if (childControl.Bounds.Width <= 0 || childControl.Bounds.Height <= 0) return;
+			if (!g.ClipBounds.IntersectsWith((RectangleF)childControl.Bounds)) return;
+			g.TranslateTransform(childControl.Bounds.X, childControl.Bounds.Y, MatrixOrder.Append);
+			g.IntersectClip(new Rectangle(Point.Empty, childControl.Bounds.Size));
+			childControl.Paint(g);
+			g.Restore(state);
+		}
+		protected override void OnResize(EventArgs e) {
+			if (!ReferenceEquals(childControl, null)) childControl.Bounds = new Rectangle(Point.Empty, ClientSize);
+			base.OnResize(e);
+		}
+		protected override void OnMouseDown(MouseEventArgs e) {
+			base.OnMouseDown(e);
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : childControl;
+			if (control != null) control.MouseDown(PointToChild(control, e.Location), e.Button);
+		}
+		protected override void OnMouseUp(MouseEventArgs e) {
+			base.OnMouseUp(e);
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : childControl;
+			if (control != null) control.MouseUp(PointToChild(control, e.Location), e.Button);
+		}
+		protected override void OnMouseMove(MouseEventArgs e) {
+			IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : childControl;
+			if (control != null) control.MouseMove(PointToChild(control, e.Location), e.Button);
+		}
+		protected override bool IsInputChar(char charCode) {
+			return true;
+		}
+		protected override bool IsInputKey(Keys keyData) {
+			return true;
+		}
+		protected override void OnKeyDown(KeyEventArgs e) {
+			//base.OnKeyDown(e);
+			if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.KeyDown(e.KeyData);
+		}
+		protected override void OnKeyPress(KeyPressEventArgs e) {
+			//base.OnKeyPress(e);
+			if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.KeyPress(e.KeyChar);
+		}
+		protected override void OnKeyUp(KeyEventArgs e) {
+			//base.OnKeyUp(e);
+			if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.KeyUp(e.KeyData);
+		}
+		protected override void OnHandleDestroyed(EventArgs e) {
+			if (!ReferenceEquals(childControl, null)) childControl.Orphaned();
+			base.OnHandleDestroyed(e);
+		}
+	}
+	public class FBGCursor {
+		public Image Image { get; private set; }
+		public Point Hotspot { get; private set; }
+		public Size Size { get; private set; }
+		public FBGCursor(Image image, Point hotspot) {
+			this.Image = image;
+			this.Hotspot = hotspot;
+			this.Size = image.Size;
+		}
+		public Rectangle Area { get { return new Rectangle(-Hotspot.X, -Hotspot.Y, Size.Width, Size.Height); } }
+		public FBGCursor RotateFlip(RotateFlipType type) {
+			Image img = new Bitmap(Image);
+			img.RotateFlip(type);
+			Point hs = Hotspot;
+			switch (type) {
+				case RotateFlipType.RotateNoneFlipNone: break;
+				case RotateFlipType.Rotate90FlipNone: hs = new Point(img.Width - hs.Y, hs.X); break;
+				case RotateFlipType.Rotate180FlipNone: hs = new Point(img.Width - hs.X, img.Height - hs.Y); break;
+				case RotateFlipType.Rotate270FlipNone: hs = new Point(hs.Y, img.Height - hs.X); break;
+				case RotateFlipType.RotateNoneFlipX: hs.X = img.Width - hs.X; break;
+				case RotateFlipType.Rotate90FlipX: hs = new Point(hs.Y, hs.X); break;
+				case RotateFlipType.RotateNoneFlipY: hs.Y = img.Height - hs.Y; break;
+				case RotateFlipType.Rotate90FlipY: hs = new Point(img.Width - hs.Y, img.Height - hs.X); break;
+			}
+			return new FBGCursor(img, hs);
+		}
+		public static FBGCursor FromBase64Image(String data, Point hotspot) {
+			return new FBGCursor(Image.FromStream(new MemoryStream(Convert.FromBase64String(data))), hotspot);
+		}
+		private static FBGCursor LoadFromResource(String name, int hotX, int hotY) {
+			using (Stream s = Assembly.GetExecutingAssembly().GetManifestResourceStream("UCIS.FBGUI." + name + ".png")) {
+				return new FBGCursor(Image.FromStream(s), new Point(hotX, hotY));
+			}
+		}
+		public static readonly FBGCursor Arrow = LoadFromResource("cursor_arrow", 0, 0);
+		public static readonly FBGCursor Move = LoadFromResource("cursor_move", 8, 8);
+		public static readonly FBGCursor SizeLeft = LoadFromResource("cursor_left", 1, 10);
+		public static readonly FBGCursor SizeRight = SizeLeft.RotateFlip(RotateFlipType.RotateNoneFlipX);
+		public static readonly FBGCursor SizeTop = SizeLeft.RotateFlip(RotateFlipType.Rotate90FlipNone);
+		public static readonly FBGCursor SizeBottom = SizeLeft.RotateFlip(RotateFlipType.Rotate90FlipY);
+		public static readonly FBGCursor SizeTopLeft = LoadFromResource("cursor_topleft", 1, 1);
+		public static readonly FBGCursor SizeTopRight = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipX);
+		public static readonly FBGCursor SizeBottomLeft = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipY);
+		public static readonly FBGCursor SizeBottomRight = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipXY);
+		public static FBGCursor ArrowCursor { get { return Arrow; } }
+	}
+	public class FBGRenderer : FBGContainerControl, IDisposable {
+		private FBGCursor cursor = null;
+		private Point cursorposition = Point.Empty;
+		public IFramebuffer Framebuffer { get; private set; }
+		private Bitmap Frontbuffer = null;
+		protected Object RenderLock = new object();
+		public event EventHandler<InvalidateEventArgs> Painted;
+		protected Size size = Size.Empty;
+		private ThreadingTimer PaintTimer = null;
+		private Boolean PaintScheduled = false;
+		private int PaintDelay = 0;
+		public Boolean SuspendDrawing {
+			get { return suspenddrawing; }
+			set {
+				lock (RenderLock) {
+					suspenddrawing = value;
+					if (!value) {
+						Refresh(DirtyRectangle);
+						DirtyRectangle = Rectangle.Empty;
+					}
+				}
+			}
+		}
+		public int RedrawDelay {
+			get { return PaintDelay; }
+			set {
+				lock (RenderLock) {
+					if (value < 0) throw new ArgumentOutOfRangeException("value");
+					PaintDelay = value;
+					if (PaintDelay == 0) {
+						if (PaintTimer != null) PaintTimer.Dispose();
+						PaintTimer = null;
+						if (PaintScheduled) PaintTimerCallback(null);
+					} else {
+						PaintTimer = new ThreadingTimer(PaintTimerCallback);
+					}
+				}
+			}
+		}
+		private Boolean suspenddrawing = false;
+		private Rectangle DirtyRectangle;
+		public Point CursorPosition {
+			get { return cursorposition; }
+			set { UpdateCursor(value, cursor); }
+		}
+		protected void UpdateCursor(Point position, FBGCursor cursor) {
+			if (cursorposition == position && cursor == this.cursor) return;
+			Rectangle r1 = Rectangle.Empty;
+			if (this.cursor != null) {
+				r1 = this.cursor.Area;
+				r1.Offset(cursorposition);
+			}
+			if (cursor != null) {
+				Rectangle r2 = cursor.Area;
+				r2.Offset(position);
+				r1 = r1.IsEmpty ? r2 : Rectangle.Union(r1, r2);
+			}
+			this.cursor = cursor;
+			cursorposition = position;
+			Invalidate(r1);
+		}
+		public override Rectangle Bounds {
+			get { return new Rectangle(Point.Empty, size); }
+			set { throw new NotSupportedException("Can not change the top control bounds"); }
+		}
+		public FBGRenderer(IFramebuffer fb) : this(fb.Width, fb.Height) {
+			Framebuffer = fb;
+		}
+		public FBGRenderer(Size fbsize) : this(fbsize.Width, fbsize.Height) { }
+		public FBGRenderer(int width, int height) : this(new Bitmap(width, height, PixelFormat.Format32bppRgb)) { }
+		public FBGRenderer(Bitmap bmp) : base(null) {
+			Frontbuffer = bmp;
+			BackColor = SystemColors.Control;
+			size = Frontbuffer.Size;
+		}
+		protected FBGRenderer() : base(null) {
+			BackColor = SystemColors.Control;
+		}
+		public override void Invalidate(Rectangle rect) {
+			if (rect.Width == 0 || rect.Height == 0) return;
+			lock (RenderLock) {
+				if (SuspendDrawing || PaintTimer != null) {
+					DirtyRectangle = DirtyRectangle.IsEmpty ? rect : Rectangle.Union(DirtyRectangle, rect);
+					if (!SuspendDrawing && !PaintScheduled) {
+						PaintScheduled = true;
+						PaintTimer.Change(PaintDelay, Timeout.Infinite);
+					}
+				} else {
+					Refresh(rect);
+				}
+			}
+		}
+		private void PaintTimerCallback(Object state) {
+			try {
+				lock (RenderLock) {
+					PaintScheduled = false;
+					Refresh(DirtyRectangle);
+					DirtyRectangle = Rectangle.Empty;
+				}
+			} catch (Exception ex) {
+				Debug.WriteLine(ex);
+				Console.Error.WriteLine(ex);
+			}
+		}
+		protected virtual void Refresh(Rectangle rect) {
+			lock (RenderLock) {
+				rect.Intersect(Bounds);
+				if (rect.Width == 0 || rect.Height == 0) return;
+				if (Frontbuffer != null) {
+					using (Graphics g = Graphics.FromImage(Frontbuffer)) {
+						g.SetClip(rect);
+						Paint(g);
+					}
+					if (Framebuffer != null) Framebuffer.DrawImage(Frontbuffer, rect, rect.Location);
+				}
+				RaiseEvent(Painted, new InvalidateEventArgs(rect));
+			}
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			if (cursor != null) {
+				Point r = CursorPosition;
+				r.Offset(-cursor.Hotspot.X, -cursor.Hotspot.Y);
+				g.DrawImage(cursor.Image, new Rectangle(r, cursor.Size));
+			}
+		}
+		protected override Boolean CaptureMouse(Boolean capture) {
+			return true;
+		}
+		protected override Boolean CaptureKeyboard(bool capture) {
+			return true;
+		}
+		public virtual void Dispose() {
+			lock (RenderLock) {
+				if (PaintTimer != null) PaintTimer.Dispose();
+				PaintTimer = null;
+			}
+			Orphaned();
+			if (Frontbuffer != null) Frontbuffer.Dispose();
+		}
+		public Bitmap LockBitmapBuffer() {
+			Monitor.Enter(RenderLock);
+			return Frontbuffer;
+		}
+		public void UnlockBitmapBuffer() {
+			Monitor.Exit(RenderLock);
+		}
+		public new void MouseMove(Point position, MouseButtons buttons) { base.MouseMove(position, buttons); UpdateCursor(cursorposition, CurrentCursor); }
+		public new void MouseDown(Point position, MouseButtons buttons) { base.MouseDown(position, buttons); UpdateCursor(cursorposition, CurrentCursor); }
+		public new void MouseUp(Point position, MouseButtons buttons) { base.MouseUp(position, buttons); UpdateCursor(cursorposition, CurrentCursor); }
+		public new void KeyDown(Keys key) { base.KeyDown(key); }
+		public new void KeyPress(Char key) { base.KeyPress(key); }
+		public new void KeyUp(Keys key) { base.KeyUp(key); }
+	}
+	public class FBGForm : FBGDockContainer {
+		private Point prevPosition = Point.Empty;
+		private NonClientOps moveresize = 0;
+		private String text = String.Empty;
+		public event EventHandler TextChanged;
+		public Boolean Sizable { get; set; }
+		public Boolean Movable { get; set; }
+		public Boolean Closable { get; set; }
+		[Flags]
+		private enum NonClientOps : int {
+			None = 0,
+			Move = 1,
+			ResizeLeft = 2,
+			ResizeRight = 4,
+			ResizeTop = 8,
+			ResizeBottom = 16,
+			ButtonClose = 32,
+			MoveResize = ResizeLeft | ResizeRight | ResizeBottom | ResizeTop | Move,
+		}
+		public FBGForm(IFBGContainerControl parent) : base(parent) {
+			BackColor = SystemColors.Control;
+			ClientRectangle = new Rectangle(4, 22, Bounds.Width - 8, Bounds.Height - 26);
+			Sizable = true;
+			Movable = true;
+			Closable = false;
+		}
+		public override Rectangle Bounds {
+			get { return base.Bounds; }
+			set {
+				ClientRectangle = new Rectangle(4, 22, value.Width - 8, value.Height - 26);
+				base.Bounds = value;
+			}
+		}
+		public String Text { get { return text; } set { if (text == value) return; text = value; Invalidate(new Rectangle(0, 0, Bounds.Width, 20)); RaiseEvent(TextChanged); } }
+		private NonClientOps GetNonClientOperation(Point p) {
+			if ((new Rectangle(Bounds.Width - 5 - 14, 4, 14, 14)).Contains(p)) return NonClientOps.ButtonClose;
+			NonClientOps mr = 0;
+			if (Sizable) {
+				if (Movable) {
+					if (p.X < 4) mr |= NonClientOps.ResizeLeft;
+					if (p.Y < 4) mr |= NonClientOps.ResizeTop;
+				}
+				if (p.X >= Bounds.Width - 4) mr |= NonClientOps.ResizeRight;
+				if (p.Y >= Bounds.Height - 4) mr |= NonClientOps.ResizeBottom;
+			}
+			if (mr == 0 && Movable && p.Y < 20) mr = NonClientOps.Move;
+			return mr;
+		}
+		private void SetCursorForNonClientOperation(NonClientOps op) {
+			switch (op & NonClientOps.MoveResize) {
+				case NonClientOps.Move: CurrentCursor = FBGCursor.Move; break;
+				case NonClientOps.ResizeLeft: CurrentCursor = FBGCursor.SizeLeft; break;
+				case NonClientOps.ResizeRight: CurrentCursor = FBGCursor.SizeRight; break;
+				case NonClientOps.ResizeBottom: CurrentCursor = FBGCursor.SizeBottom; break;
+				case NonClientOps.ResizeTop: CurrentCursor = FBGCursor.SizeTop; break;
+				case NonClientOps.ResizeTop | NonClientOps.ResizeLeft: CurrentCursor = FBGCursor.SizeTopLeft; break;
+				case NonClientOps.ResizeTop | NonClientOps.ResizeRight: CurrentCursor = FBGCursor.SizeTopRight; break;
+				case NonClientOps.ResizeBottom | NonClientOps.ResizeLeft: CurrentCursor = FBGCursor.SizeBottomLeft; break;
+				case NonClientOps.ResizeBottom | NonClientOps.ResizeRight: CurrentCursor = FBGCursor.SizeBottomRight; break;
+				default: CurrentCursor = DefaultCursor; break;
+			}
+		}
+		protected override void MouseDown(Point p, MouseButtons buttons) {
+			NonClientOps mr = 0;
+			if ((buttons & MouseButtons.Left) != 0) mr = GetNonClientOperation(p);
+			if (mr != 0) {
+				moveresize = mr;
+				prevPosition = p;
+				CaptureMouse(true);
+			} else {
+				base.MouseDown(p, buttons);
+			}
+		}
+		protected override void MouseMove(Point position, MouseButtons buttons) {
+			if (moveresize == 0) {
+				base.MouseMove(position, buttons);
+			} else if ((moveresize & NonClientOps.MoveResize) != 0) {
+				Rectangle b = Bounds;
+				int dx = position.X - prevPosition.X;
+				int dy = position.Y - prevPosition.Y;
+				if (moveresize == NonClientOps.Move) {
+					b.Offset(dx, dy);
+				}
+				if ((moveresize & NonClientOps.ResizeLeft) != 0) {
+					b.X += dx;
+					b.Width -= dx;
+				} else if ((moveresize & NonClientOps.ResizeRight) != 0) {
+					b.Width += dx;
+					prevPosition.X = position.X;
+				}
+				if ((moveresize & NonClientOps.ResizeTop) != 0) {
+					b.Y += dy;
+					b.Height -= dy;
+				} else if ((moveresize & NonClientOps.ResizeBottom) != 0) {
+					b.Height += dy;
+					prevPosition.Y = position.Y;
+				}
+				if (b.Width < 55) b.Width = 55;
+				if (b.Height < 25) b.Height = 25;
+				Bounds = b;
+			}
+			SetCursorForNonClientOperation(moveresize == 0 ? GetNonClientOperation(position) : moveresize);
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			if (moveresize == 0) {
+				base.MouseUp(position, buttons);
+			} else if ((buttons & MouseButtons.Left) != 0) {
+				MouseMove(position, buttons);
+				CaptureMouse(false);
+				if (moveresize == NonClientOps.ButtonClose && (new Rectangle(Bounds.Width - 5 - 14, 4, 14, 14)).Contains(position) && Closable) Close();
+				moveresize = 0;
+			}
+			SetCursorForNonClientOperation(moveresize == 0 ? GetNonClientOperation(position) : moveresize);
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawRectangle(Pens.Gray, 0, 0, Bounds.Width - 1, Bounds.Height - 1);
+			g.DrawRectangle(Pens.LightGray, 1, 1, Bounds.Width - 3, Bounds.Height - 3);
+			g.DrawRectangle(Pens.DarkGray, 2, 20, Bounds.Width - 5, Bounds.Height - 23);
+			g.DrawRectangle(Pens.Gray, 3, 21, Bounds.Width - 7, Bounds.Height - 25);
+			using (Brush b = new LinearGradientBrush(new Rectangle(0, 1, 1, 18), Color.Gray, Color.LightGray, LinearGradientMode.Vertical))
+				g.FillRectangle(b, 2, 2, Bounds.Width - 4, 18);
+			g.DrawString(Text, SystemFonts.CaptionFont, Brushes.Black, 4, 1);
+			g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14, 4, 14, 14);
+			g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14 - 16, 4, 14, 14);
+			g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14 - 32, 4, 14, 14);
+			using (Brush b = new LinearGradientBrush(new Rectangle(0, 5, 1, 13), Color.LightGray, Color.DarkGray, LinearGradientMode.Vertical)) {
+				g.FillRectangle(b, Bounds.Width - 5 - 14 + 1, 5, 13, 13);
+				g.FillRectangle(b, Bounds.Width - 5 - 14 + 1 - 16, 5, 13, 13);
+				g.FillRectangle(b, Bounds.Width - 5 - 14 + 1 - 32, 5, 13, 13);
+			}
+			if (Closable) {
+				g.DrawLine(Pens.Black, Bounds.Width - 5 - 14 + 3, 4 + 3, Bounds.Width - 5 - 14 + 14 - 3, 4 + 14 - 3);
+				g.DrawLine(Pens.Black, Bounds.Width - 5 - 14 + 3, 4 + 14 - 3, Bounds.Width - 5 - 14 + 14 - 3, 4 + 3);
+			}
+		}
+		public void Close() {
+			Parent.RemoveControl(this);
+		}
+	}
+	public class FBGDesktop : FBGContainerControl {
+		FBGContainerControl windowcontainer;
+		FBGContainerControl menucontainer;
+		Boolean startup = true;
+		class FBGWindowState {
+			public IFBGControl Control;
+			public FBGButton MenuButton;
+			public Boolean Visible;
+			public Rectangle OldBounds;
+			public FBGWindowState(IFBGControl cntrl, FBGButton btn) {
+				Control = cntrl;
+				MenuButton = btn;
+				Visible = true;
+			}
+		}
+		Dictionary<IFBGControl, FBGWindowState> windowstates = new Dictionary<IFBGControl, FBGWindowState>();
+		public FBGDesktop(IFBGContainerControl parent) : base(parent) {
+			menucontainer = new FBGContainerControl(this);
+			menucontainer.Bounds = new Rectangle(0, Bounds.Height - 25, Bounds.Width, 25);
+			windowcontainer = new FBGContainerControl(this);
+			windowcontainer.Bounds = new Rectangle(0, 0, Bounds.Width, Bounds.Height - 25);
+			startup = false;
+		}
+		public override Rectangle Bounds {
+			get { return base.Bounds; }
+			set {
+				if (Bounds == value) return;
+				base.Bounds = value;
+				if (startup) return;
+				menucontainer.Bounds = new Rectangle(0, value.Height - 25, value.Width, 25);
+				windowcontainer.Bounds = new Rectangle(0, 0, value.Width, value.Height - 25);
+				ScaleMenuButtons();
+			}
+		}
+		protected override void AddControl(IFBGControl control) {
+			if (startup) {
+				base.AddControl(control);
+				return;
+			}
+			((IFBGContainerControl)windowcontainer).AddControl(control);
+			FBGButton btn = new FBGButton(menucontainer);
+			FBGForm formcontrol = control as FBGForm;
+			if (formcontrol == null) {
+				btn.Text = "Untitled";
+			} else {
+				formcontrol.TextChanged += delegate(Object sender, EventArgs e) {
+					btn.Text = formcontrol.Text;
+				};
+				btn.Text = formcontrol.Text;
+			}
+			FBGWindowState ws = new FBGWindowState(control, btn);
+			windowstates.Add(control, ws);
+			ScaleMenuButtons();
+			btn.Click += delegate(Object sender, EventArgs e) {
+				if (ws.Visible) {
+					if (ws.MenuButton.BackColor == Color.DarkGray) {
+						ws.OldBounds = ws.Control.Bounds;
+						ws.Visible = false;
+						ws.Control.Bounds = Rectangle.Empty;
+					} else {
+						windowcontainer.BringControlToFront(ws.Control);
+						foreach (FBGWindowState wsa in windowstates.Values) if (!ReferenceEquals(ws, wsa)) wsa.MenuButton.BackColor = SystemColors.ButtonFace;
+						ws.MenuButton.BackColor = Color.DarkGray;
+					}
+				} else {
+					ws.Control.Bounds = ws.OldBounds;
+					ws.Visible = true;
+					windowcontainer.BringControlToFront(ws.Control);
+					foreach (FBGWindowState wsa in windowstates.Values) if (!ReferenceEquals(ws, wsa)) wsa.MenuButton.BackColor = SystemColors.ButtonFace;
+					ws.MenuButton.BackColor = Color.DarkGray;
+				}
+			};
+		}
+		public override void RemoveControl(IFBGControl control) {
+			windowcontainer.RemoveControl(control);
+			windowstates.Remove(control);
+			ScaleMenuButtons();
+		}
+		private void ScaleMenuButtons() {
+			int bcount = windowstates.Count;
+			int bwidth = 200;
+			int twidth = bwidth * bcount;
+			if (twidth > Bounds.Width) bwidth = menucontainer.Bounds.Width / bcount;
+			int i = 0;
+			foreach (FBGWindowState ws in windowstates.Values) {
+				ws.MenuButton.Bounds = new Rectangle(i * bwidth, 0, bwidth, 25);
+				i++;
+			}
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawLine(Pens.Black, 0, Bounds.Height - 25, Bounds.Width, Bounds.Height - 25);
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			IFBGControl control = FindControlAtPosition(position);
+			if (ReferenceEquals(control, windowcontainer)) {
+				control = windowcontainer.FindControlAtPosition(PointToChild(windowcontainer, position));
+				if (!ReferenceEquals(control, null)) {
+					windowcontainer.BringControlToFront(control);
+					foreach (FBGWindowState ws in windowstates.Values)
+						ws.MenuButton.BackColor = ReferenceEquals(ws.Control, control) ? Color.DarkGray : SystemColors.ButtonFace;
+				}
+			}
+			base.MouseDown(position, buttons);
+		}
+	}
+	public class FBGLabel : FBGControl, IDisposable {
+		public FBGLabel(IFBGContainerControl parent) : base(parent) {
+			Size = new Size(200, 16);
+		}
+		private String text = String.Empty;
+		private Font font = SystemFonts.DefaultFont;
+		private Brush brush = SystemBrushes.ControlText;
+		private StringFormat stringformat = new StringFormat();
+		public String Text { get { return text; } set { text = value; Invalidate(); } }
+		public Font Font { get { return font; } set { font = value; Invalidate(); } }
+		public Brush Brush { get { return brush; } set { brush = value; Invalidate(); } }
+		public Color Color { set { Brush = new SolidBrush(value); } }
+		public StringAlignment Alignment { get { return stringformat.Alignment; } set { stringformat.Alignment = value; Invalidate(); } }
+		public StringFormatFlags FormatFlags { get { return stringformat.FormatFlags; } set { stringformat.FormatFlags = value; Invalidate(); } }
+		public StringAlignment LineAlignment { get { return stringformat.LineAlignment; } set { stringformat.LineAlignment = value; Invalidate(); } }
+		public StringTrimming Trimming { get { return stringformat.Trimming; } set { stringformat.Trimming = value; Invalidate(); } }
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawString(text, font, brush, new Rectangle(Point.Empty, Bounds.Size), stringformat);
+		}
+		public void Dispose() {
+			stringformat.Dispose();
+		}
+		protected override void Orphaned() {
+			base.Orphaned();
+			Dispose();
+		}
+	}
+	public class FBGTextBox : FBGControl {
+		public FBGTextBox(IFBGContainerControl parent) : base(parent) {
+			BackColor = Color.White;
+			Size = new Size(200, 20);
+		}
+		private String text = String.Empty;
+		private Char passwordChar = (Char)0;
+		private Font font = new Font(FontFamily.GenericMonospace, 10);
+		private Brush brush = SystemBrushes.ControlText;
+		private Boolean hasKeyboardFocus = false;
+		public String Text { get { return text; } set { text = value; if (CaretPosition > text.Length) CaretPosition = text.Length; Invalidate(); RaiseEvent(TextChanged); } }
+		public Font Font { get { return font; } set { font = value; Invalidate(); } }
+		public Brush Brush { get { return brush; } set { brush = value; Invalidate(); } }
+		public Color Color { set { Brush = new SolidBrush(value); } }
+		public Int32 CaretPosition { get; private set; }
+		public Char PasswordChar { get { return passwordChar; } set { passwordChar = value; Invalidate(); } }
+		public event EventHandler TextChanged;
+		public event KeyPressEventHandler OnKeyPress;
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawRectangle(Pens.Gray, 0, 0, Bounds.Width - 1, Bounds.Height - 1);
+			using (StringFormat sf_nonprinting = new StringFormat(StringFormat.GenericTypographic)) {
+				sf_nonprinting.Trimming = StringTrimming.None;
+				sf_nonprinting.FormatFlags = StringFormatFlags.DisplayFormatControl | StringFormatFlags.MeasureTrailingSpaces;
+				sf_nonprinting.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.None;
+				float x = 1;
+				float y = 1;
+				float w = Width - 2;
+				if (hasKeyboardFocus && CaretPosition == 0) {
+					g.DrawLine(Pens.Black, x + 2, 2, x + 2, Height - 4);
+				}
+				String c = passwordChar == 0 ? null : new String(passwordChar, 1);
+				for (int i = 0; i < text.Length; i++) {
+					if (passwordChar == 0) c = text.Substring(i, 1);
+					SizeF s = g.MeasureString(c, font, (int)Math.Ceiling(w), sf_nonprinting);
+					g.DrawString(c, font, brush, x, y);
+					x += (float)Math.Ceiling(s.Width);
+					w -= (float)Math.Ceiling(s.Width);
+					if (hasKeyboardFocus && i == CaretPosition - 1) {
+						g.DrawLine(Pens.Black, x + 2, 2, x + 2, Height - 4);
+					}
+				}
+			}
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			hasKeyboardFocus = CaptureKeyboard(true);
+			CaretPosition = text.Length;
+			float x = 1;
+			String c = passwordChar == 0 ? null : new String(passwordChar, 1);
+			for (int i = 0; i < text.Length; i++) {
+				if (passwordChar == 0) c = text.Substring(i, 1);
+				Size s;
+				try {
+					s = TextRenderer.MeasureText(c, font, Size.Empty, TextFormatFlags.NoPadding | TextFormatFlags.NoPrefix);
+				} catch (Exception) {
+					break;
+				}
+				x += s.Width;
+				if (position.X < x) {
+					CaretPosition = i;
+					break;
+				}
+			}
+			Invalidate();
+		}
+		protected override void KeyDown(Keys key) {
+			if ((key & Keys.KeyCode) == Keys.Left) {
+				CaretPosition--;
+				if (CaretPosition < 0) CaretPosition = 0;
+				Invalidate();
+			} else if ((key & Keys.KeyCode) == Keys.Right) {
+				CaretPosition++;
+				if (CaretPosition > text.Length) CaretPosition = text.Length;
+				Invalidate();
+			} else if ((key & Keys.KeyCode) == Keys.Home) {
+				CaretPosition = 0;
+				Invalidate();
+			} else if ((key & Keys.KeyCode) == Keys.End) {
+				CaretPosition = text.Length;
+				Invalidate();
+			} else if ((key & Keys.Control) != 0 && (key & Keys.KeyCode) == Keys.V) {
+				String cbtext = Clipboard.GetText(TextDataFormat.UnicodeText);
+				CaretPosition += cbtext.Length;
+				Text = Text.Insert(CaretPosition - cbtext.Length, cbtext);
+			}
+		}
+		protected override void KeyPress(char keyChar) {
+			KeyPressEventArgs e = new KeyPressEventArgs(keyChar);
+			RaiseEvent(OnKeyPress, e);
+			if (e.Handled) return;
+			hasKeyboardFocus = true;
+			if (keyChar == 8) {
+				if (CaretPosition > 0) {
+					CaretPosition--;
+					Text = Text.Remove(CaretPosition, 1);
+				}
+			} else if (keyChar == 127) {
+				if (CaretPosition < Text.Length) {
+					Text = Text.Remove(CaretPosition, 1);
+				}
+			} else if (keyChar < 32) {
+			} else {
+				CaretPosition++;
+				Text = Text.Insert(CaretPosition - 1, new String(keyChar, 1));
+			}
+		}
+		public void Focus() {
+			hasKeyboardFocus = CaptureKeyboard(true);
+		}
+		protected override void LostKeyboardCapture() {
+			base.LostKeyboardCapture();
+			hasKeyboardFocus = false;
+			Invalidate();
+		}
+	}
+	public class FBGButton : FBGControl {
+		public FBGButton(IFBGContainerControl parent) : base(parent) {
+			BackColor = SystemColors.ButtonFace;
+		}
+		private String text = String.Empty;
+		private Font font = SystemFonts.DefaultFont;
+		private Color color = SystemColors.ControlText;
+		private Boolean pressed = false;
+		private Boolean enabled = true;
+		public String Text { get { return text; } set { text = value; Invalidate(); } }
+		public Font Font { get { return font; } set { font = value; Invalidate(); } }
+		public Color Color { get { return color; } set { color = value; Invalidate(); } }
+		public Boolean Enabled { get { return enabled; } set { enabled = value; Invalidate(); } }
+		public event EventHandler Click;
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			if (Bounds.Width == 0 || Bounds.Height == 0) return;
+			if (BackColor == SystemColors.ButtonFace) {
+				ControlPaint.DrawButton(g, new Rectangle(0, 0, Bounds.Width, Bounds.Height), enabled ? (pressed ? ButtonState.Pushed : ButtonState.Normal) : ButtonState.Inactive);
+			} else {
+				//Hackish and not completely right...
+				//Todo: borrowed from mono... possible licencing issues!?
+				g.DrawLine(new Pen(ControlPaint.LightLight(BackColor)), 0, 0, Bounds.Width, 0);
+				g.DrawLine(new Pen(ControlPaint.LightLight(BackColor)), 0, 0, 0, Bounds.Height);
+				g.DrawLine(new Pen(ControlPaint.Dark(BackColor)), 1, Bounds.Height - 2, Bounds.Width - 1, Bounds.Height - 2);
+				g.DrawLine(new Pen(ControlPaint.Dark(BackColor)), Bounds.Width - 2, 1, Bounds.Width - 2, Bounds.Height - 2);
+				g.DrawLine(new Pen(ControlPaint.DarkDark(BackColor)), 0, Bounds.Height - 1, Bounds.Width, Bounds.Height - 1);
+				g.DrawLine(new Pen(ControlPaint.DarkDark(BackColor)), Bounds.Width - 1, 1, Bounds.Width - 1, Bounds.Height - 1);
+				Graphics dc = g;
+				Rectangle rectangle = new Rectangle(0, 0, Bounds.Width - 1, Bounds.Height - 1);
+				Color ColorControl = BackColor;
+				Color ColorControlLight = ControlPaint.Light(ColorControl);
+				ButtonState state = pressed ? ButtonState.Pushed : ButtonState.Normal;
+				using (Pen NormalPen = new Pen(BackColor), LightPen = new Pen(ControlPaint.Light(BackColor)), DarkPen = new Pen(ControlPaint.Dark(BackColor))) {
+					// sadly enough, the rectangle gets always filled with a hatchbrush
+					using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, Color.FromArgb(Math.Min(255, ColorControl.R + 3), ColorControl.G, ColorControl.B), ColorControl)) {
+						dc.FillRectangle(hb, rectangle.X + 1, rectangle.Y + 1, rectangle.Width - 2, rectangle.Height - 2);
+					}
+					if ((state & ButtonState.All) == ButtonState.All || ((state & ButtonState.Checked) == ButtonState.Checked && (state & ButtonState.Flat) == ButtonState.Flat)) {
+						using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, ColorControlLight, ColorControl)) {
+							dc.FillRectangle(hb, rectangle.X + 2, rectangle.Y + 2, rectangle.Width - 4, rectangle.Height - 4);
+						}
+						dc.DrawRectangle(SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.Width - 1, rectangle.Height - 1);
+					} else if ((state & ButtonState.Flat) == ButtonState.Flat) {
+						dc.DrawRectangle(SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.Width - 1, rectangle.Height - 1);
+					} else if ((state & ButtonState.Checked) == ButtonState.Checked) {
+						using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, ColorControlLight, ColorControl)) {
+							dc.FillRectangle(hb, rectangle.X + 2, rectangle.Y + 2, rectangle.Width - 4, rectangle.Height - 4);
+						}
+						Pen pen = DarkPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2);
+						dc.DrawLine(pen, rectangle.X + 1, rectangle.Y, rectangle.Right - 2, rectangle.Y);
+						pen = NormalPen;
+						dc.DrawLine(pen, rectangle.X + 1, rectangle.Y + 1, rectangle.X + 1, rectangle.Bottom - 3);
+						dc.DrawLine(pen, rectangle.X + 2, rectangle.Y + 1, rectangle.Right - 3, rectangle.Y + 1);
+						pen = LightPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 2, rectangle.Bottom - 1);
+						dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 1);
+					} else if (((state & ButtonState.Pushed) == ButtonState.Pushed) && ((state & ButtonState.Normal) == ButtonState.Normal)) {
+						Pen pen = DarkPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2);
+						dc.DrawLine(pen, rectangle.X + 1, rectangle.Y, rectangle.Right - 2, rectangle.Y);
+						pen = NormalPen;
+						dc.DrawLine(pen, rectangle.X + 1, rectangle.Y + 1, rectangle.X + 1, rectangle.Bottom - 3);
+						dc.DrawLine(pen, rectangle.X + 2, rectangle.Y + 1, rectangle.Right - 3, rectangle.Y + 1);
+						pen = LightPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 2, rectangle.Bottom - 1);
+						dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 1);
+					} else if (((state & ButtonState.Inactive) == ButtonState.Inactive) || ((state & ButtonState.Normal) == ButtonState.Normal)) {
+						Pen pen = LightPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.Right - 2, rectangle.Y);
+						dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2);
+						pen = NormalPen;
+						dc.DrawLine(pen, rectangle.X + 1, rectangle.Bottom - 2, rectangle.Right - 2, rectangle.Bottom - 2);
+						dc.DrawLine(pen, rectangle.Right - 2, rectangle.Y + 1, rectangle.Right - 2, rectangle.Bottom - 3);
+						pen = DarkPen;
+						dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 1, rectangle.Bottom - 1);
+						dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 2);
+					}
+				}
+			}
+			Rectangle frect = new Rectangle(Point.Empty, Bounds.Size);
+			SizeF textsize = g.MeasureString(Text, Font);
+			using (Brush b = new SolidBrush(enabled ? Color : Color.DarkGray)) {
+				g.DrawString(Text, Font, b, new PointF(Bounds.Width / 2.0f - textsize.Width / 2.0f, Bounds.Height / 2.0f - textsize.Height / 2.0f));
+			}
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			pressed = true;
+			Invalidate();
+			CaptureMouse(true);
+			base.MouseDown(position, buttons);
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			pressed = false;
+			Invalidate();
+			CaptureMouse(false);
+			if (position.X >= 0 && position.X <= Bounds.Width && position.Y >= 0 && position.Y <= Bounds.Height && enabled) RaiseEvent(Click);
+			base.MouseUp(position, buttons);
+		}
+		protected override void KeyDown(Keys key) {
+			if (key == Keys.Return || key == Keys.Space) {
+				pressed = true;
+				Invalidate();
+			}
+			base.KeyDown(key);
+		}
+		protected override void KeyUp(Keys key) {
+			if (key == Keys.Return || key == Keys.Space) {
+				if (pressed) RaiseEvent(Click);
+				pressed = false;
+				Invalidate();
+			}
+			base.KeyUp(key);
+		}
+		public void Focus() {
+			CaptureKeyboard(true);
+		}
+	}
+	public class FBGCheckBox : FBGControl {
+		public FBGCheckBox(IFBGContainerControl parent) : base(parent) { }
+		private String text = String.Empty;
+		private Font font = SystemFonts.DefaultFont;
+		private Color color = SystemColors.ControlText;
+		private Boolean _checked = false;
+		public String Text { get { return text; } set { text = value; Invalidate(); } }
+		public Font Font { get { return font; } set { font = value; Invalidate(); } }
+		public Color Color { get { return color; } set { color = value; Invalidate(); } }
+		public Boolean Checked { get { return _checked; } set { _checked = value; Invalidate(); } }
+		public event EventHandler CheckedChanged;
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			ControlPaint.DrawCheckBox(g, 0, 0, 13, 13, _checked ? ButtonState.Checked : ButtonState.Normal);
+			g.DrawString(Text, Font, new SolidBrush(Color), 15, 0);
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			Checked = !Checked;
+			RaiseEvent(CheckedChanged);
+			base.MouseDown(position, buttons);
+		}
+	}
+	public class FBGImageBox : FBGControl {
+		Image image = null;
+		PictureBoxSizeMode sizeMode = PictureBoxSizeMode.Normal;
+		Rectangle imageRect;
+		public Image Image { get { return image; } set { image = value; UpdateImageRect(Size.Empty); } }
+		public FBGImageBox(IFBGContainerControl parent) : base(parent) { }
+		public PictureBoxSizeMode SizeMode { get { return sizeMode; } set { sizeMode = value; UpdateImageRect(Size.Empty); } }
+		public override Rectangle Bounds {
+			get {
+				return base.Bounds;
+			}
+			set {
+				UpdateImageRect(value.Size);
+				base.Bounds = value;
+			}
+		}
+		private void UpdateImageRect(Size csize) {
+			if (image == null) return;
+			Boolean boundsset = !csize.IsEmpty;
+			if (!boundsset && sizeMode == PictureBoxSizeMode.AutoSize) {
+				Size = Image.Size;
+				return;
+			}
+			if (!boundsset) csize = Bounds.Size;
+			switch (sizeMode) {
+				case PictureBoxSizeMode.AutoSize:
+				case PictureBoxSizeMode.Normal:
+					imageRect = new Rectangle(Point.Empty, image.Size);
+					break;
+				case PictureBoxSizeMode.CenterImage:
+					imageRect = new Rectangle(csize.Width / 2 - image.Width / 2, csize.Height / 2 - Image.Height / 2, image.Width, image.Height);
+					break;
+				case PictureBoxSizeMode.StretchImage:
+					imageRect = new Rectangle(Point.Empty, csize);
+					break;
+				case PictureBoxSizeMode.Zoom:
+					float xrat = (float)csize.Width / (float)image.Width;
+					float yrat = (float)csize.Height / (float)image.Height;
+					float rat = Math.Min(xrat, yrat);
+					SizeF dispsize = new SizeF(image.Width * rat, image.Height * rat);
+					imageRect = Rectangle.Round(new RectangleF(csize.Width / 2f - dispsize.Width / 2f, csize.Height / 2f - dispsize.Height / 2f, dispsize.Width, dispsize.Height));
+					break;
+			}
+			if (!boundsset) Invalidate();
+		}
+		protected override void Paint(Graphics g) {
+			if (!Visible) return;
+			base.Paint(g);
+			if (image != null) g.DrawImage(image, imageRect);
+		}
+		public Point PointToImage(Point point) {
+			switch (sizeMode) {
+				case PictureBoxSizeMode.AutoSize:
+				case PictureBoxSizeMode.Normal:
+					break;
+				case PictureBoxSizeMode.CenterImage:
+					point.X -= imageRect.X;
+					point.Y -= imageRect.Y;
+					break;
+				case PictureBoxSizeMode.StretchImage:
+				case PictureBoxSizeMode.Zoom:
+				default:
+					point.X = (point.X - imageRect.X) * image.Width / imageRect.Width;
+					point.Y = (point.Y - imageRect.Y) * image.Height / imageRect.Height;
+					break;
+			}
+			return point;
+		}
+	}
+	public class FBGListBox : FBGControl {
+		private List<Object> items = new List<object>();
+		private Object selected = null;
+		private Object highlighted = null;
+		private Boolean hasScrollBar = false;
+		private Boolean hitScrollBar = false;
+		private int offset = 0;
+		private ButtonState buttonUpState = ButtonState.Normal;
+		private ButtonState buttonDownState = ButtonState.Normal;
+		private Converter<Object, String> itemFormatter = null;
+		public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } }
+		public FBGListBox(IFBGContainerControl parent)
+			: base(parent) {
+			BackColor = Color.White;
+		}
+		public void AddItem(Object item) {
+			items.Add(item);
+			Invalidate();
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1);
+			int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight());
+			int th = lh * items.Count;
+			int y = 2;
+			using (Pen dottedpen = new Pen(Brushes.Black)) {
+				dottedpen.DashStyle = DashStyle.Dot;
+				using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) {
+					for (int i = offset; i < items.Count; i++) {
+						Object item = items[i];
+						String text = itemFormatter == null ? (item == null ? String.Empty : item.ToString()) : itemFormatter(item);
+						if (item == selected) g.FillRectangle(Brushes.DarkGray, 2, y, Bounds.Width - 4, lh);
+						if (item == highlighted) g.DrawRectangle(dottedpen, 2, y, Bounds.Width - 5, lh - 1);
+						g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(3, y, Bounds.Width - 6, lh), sf);
+						y += lh;
+						if (y + lh + 2 >= Bounds.Height) break;
+					}
+				}
+			}
+			if (y < th) hasScrollBar = true;
+			if (hasScrollBar) {
+				int xoff = Bounds.Width - 17;
+				using (Brush b = new LinearGradientBrush(new Rectangle(xoff, 0, 17, 1), Color.LightGray, Color.White, LinearGradientMode.Horizontal))
+					g.FillRectangle(b, xoff, 17, 16, Bounds.Height - 17 - 17);
+				ControlPaint.DrawScrollButton(g, xoff, 1, 16, 16, ScrollButton.Up, buttonUpState);
+				ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - 17, 16, 16, ScrollButton.Down, buttonDownState);
+				g.DrawRectangle(Pens.Black, new Rectangle(xoff, 17 + offset * (Bounds.Height - 17 - 17 - 20) / (items.Count - 1), 15, 20));
+			}
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(true);
+				if (hasScrollBar && position.X > Bounds.Width - 17) {
+					hitScrollBar = true;
+					if (position.Y < 17) {
+						offset--;
+						buttonUpState = ButtonState.Pushed;
+					} else if (position.Y > Bounds.Height - 17) {
+						offset++;
+						buttonDownState = ButtonState.Pushed;
+					} else {
+						offset = (int)Math.Round((position.Y - 17) * (items.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10));
+					}
+					if (offset < 0) offset = 0;
+					if (offset >= items.Count) offset = items.Count - 1;
+					Invalidate();
+				} else {
+					MouseHandler(position, buttons);
+				}
+			}
+		}
+		protected override void MouseMove(Point position, MouseButtons buttons) {
+			if (hitScrollBar) {
+				if (position.Y < 17) {
+				} else if (position.Y > Bounds.Height - 17) {
+				} else {
+					offset = (int)Math.Round((position.Y - 17) * (items.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10));
+					if (offset < 0) offset = 0;
+					if (offset >= items.Count) offset = items.Count - 1;
+					Invalidate();
+				}
+				return;
+			}
+			MouseHandler(position, buttons);
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(false);
+				buttonUpState = buttonDownState = ButtonState.Normal;
+				Invalidate();
+				if (hitScrollBar) {
+					hitScrollBar = false;
+					return;
+				}
+			}
+			if (hitScrollBar) return;
+			MouseHandler(position, buttons);
+		}
+		private void MouseHandler(Point position, MouseButtons buttons) {
+			if ((buttons & MouseButtons.Left) != 0) {
+				int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight());
+				int i = (position.Y - 2) / lh + offset;
+				if (i < 0) i = 0;
+				if (i >= items.Count) i = items.Count - 1;
+				Boolean changed = false;
+				Object current = items[i];
+				if (!ReferenceEquals(highlighted, current)) changed = true;
+				highlighted = current;
+				if ((new Rectangle(Point.Empty, Bounds.Size)).Contains(position)) {
+					if (!ReferenceEquals(selected, current)) changed = true;
+					selected = current;
+				}
+				if (changed) Invalidate();
+			}
+		}
+	}
+	public abstract class FBGUpDownControlBase : FBGControl {
+		private ButtonState buttonUpState = ButtonState.Normal;
+		private ButtonState buttonDownState = ButtonState.Normal;
+		public FBGUpDownControlBase(IFBGContainerControl parent) : base(parent) {
+			BackColor = Color.White;
+			Height = 25;
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1);
+			int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight());
+			String text = SelectedText;
+			if (text == null) {
+				g.FillRectangle(Brushes.DarkGray, 2, 2, Bounds.Width - 4 - 16, Bounds.Height - 4);
+			} else {
+				using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) {
+					sf.LineAlignment = StringAlignment.Center;
+					g.FillRectangle(Brushes.LightGray, 2, 2, Bounds.Width - 4 - 16, Bounds.Height - 4);
+					g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(3, 2, Bounds.Width - 6 - 16, Bounds.Height - 4), sf);
+				}
+			}
+			int xoff = Bounds.Width - 17;
+			int he = (Bounds.Height - 2) / 2;
+			ControlPaint.DrawScrollButton(g, xoff, 1, 16, he, ScrollButton.Up, buttonUpState);
+			ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - he - 1, 16, he, ScrollButton.Down, buttonDownState);
+		}
+		protected abstract String SelectedText { get; }
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			CaptureKeyboard(true);
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(true);
+				if (position.X > Bounds.Width - 17) {
+					if (position.Y < Bounds.Height / 2) {
+						buttonUpState = ButtonState.Pushed;
+						ButtonPressUp();
+					} else {
+						buttonDownState = ButtonState.Pushed;
+						ButtonPressDown();
+					}
+					Invalidate(new Rectangle(Bounds.Width - 16, 0, 16, Bounds.Height));
+				}
+			}
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(false);
+				buttonUpState = buttonDownState = ButtonState.Normal;
+				Invalidate(new Rectangle(Bounds.Width - 16, 0, 16, Bounds.Height));
+			}
+		}
+		protected override void KeyDown(Keys key) {
+			base.KeyDown(key);
+			if (key == Keys.Down) ButtonPressDown();
+			else if (key == Keys.Up) ButtonPressUp();
+		}
+		protected abstract void ButtonPressUp();
+		protected abstract void ButtonPressDown();
+	}
+	public class FBGDomainUpDown : FBGUpDownControlBase {
+		private List<Object> items = new List<object>();
+		private int selectedIndex = -1;
+		private Converter<Object, String> itemFormatter = null;
+		public Boolean AllowSelectEmpty { get; set; }
+		public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } }
+		public event EventHandler SelectedIndexChanged;
+		public FBGDomainUpDown(IFBGContainerControl parent) : base(parent) { }
+		public void AddItem(Object item) {
+			items.Add(item);
+			Invalidate();
+		}
+		public void RemoveItem(Object item) {
+			items.Remove(item);
+			FixSelectedIndex(0);
+		}
+		public void RemoveItem(int index) {
+			items.RemoveAt(index);
+			FixSelectedIndex(0);
+		}
+		public int SelectedIndex {
+			get { return selectedIndex; }
+			set {
+				if (value < -2 || value >= items.Count) throw new ArgumentOutOfRangeException("value", "Value must be between -1 and the number of items minus one");
+				if (selectedIndex == value) return;
+				selectedIndex = value;
+				Invalidate();
+				RaiseEvent(SelectedIndexChanged);
+			}
+		}
+		public Object SelectedItem {
+			get { return selectedIndex == -1 ? null : items[selectedIndex]; }
+			set {
+				if (value == null) {
+					SelectedIndex = -1;
+				} else {
+					for (int i = 0; i < items.Count; i++) {
+						if (items[i] == value) {
+							SelectedIndex = i;
+							break;
+						}
+					}
+				}
+			}
+		}
+		protected override string SelectedText {
+			get {
+				if (selectedIndex == -1) return null;
+				Object item = items[selectedIndex];
+				if (itemFormatter != null) return itemFormatter(item);
+				if (item == null) return null;
+				return item.ToString();
+			}
+		}
+		private void FixSelectedIndex(int change) {
+			int value = selectedIndex;
+			if (value == 0 && change == -1 && !AllowSelectEmpty) change = 0;
+			value += change;
+			if (value < -1) value = -1;
+			if (value >= items.Count) value = items.Count - 1;
+			SelectedIndex = value;
+		}
+		protected override void ButtonPressDown() {
+			FixSelectedIndex(1);
+		}
+		protected override void ButtonPressUp() {
+			FixSelectedIndex(-1);
+		}
+	}
+	public class FBGNumericUpDown : FBGUpDownControlBase {
+		private int minimum = 0;
+		private int maximum = 0;
+		private int value = 0;
+		public event EventHandler SelectedValueChanged;
+		public FBGNumericUpDown(IFBGContainerControl parent) : base(parent) { }
+		public int Value {
+			get { return value; }
+			set { if (this.value == value) return; this.value = value; Invalidate(); RaiseEvent(SelectedValueChanged); }
+		}
+		public int Minimum {
+			get { return minimum; }
+			set { minimum = value; if (this.value < minimum) this.Value = minimum; }
+		}
+		public int Maximum {
+			get { return maximum; }
+			set { maximum = value; if (this.value > maximum) this.Value = maximum; }
+		}
+		public int Step { get; set; }
+		protected override string SelectedText {
+			get { return value.ToString(); }
+		}
+		protected override void ButtonPressDown() {
+			Value = Math.Max(minimum, value - Step);
+		}
+		protected override void ButtonPressUp() {
+			Value = Math.Min(maximum, value + Step);
+		}
+	}
+	public interface IFBGTreeParent {
+		FBGTreeView TreeView { get; }
+		int Depth { get; }
+		void AddChild(FBGTreeNode node);
+		void RemoveChild(FBGTreeNode node);
+	}
+	public class FBGTreeNode : IFBGTreeParent {
+		private List<FBGTreeNode> children = new List<FBGTreeNode>();
+		private Boolean expanded = true;
+		private Boolean hasCheckBox = false;
+		private Boolean isChecked = false;
+		private Object item;
+		public FBGTreeView TreeView { get; private set; }
+		public int Depth { get; private set; }
+		public Object Tag { get; set; }
+		public IFBGTreeParent Parent { get; private set; }
+		public IList<FBGTreeNode> Children { get { return children.AsReadOnly(); } }
+		public Object Item {
+			get { return item; }
+			set {
+				item = value;
+				Invalidate();
+			}
+		}
+		public Boolean Expanded {
+			get { return expanded; }
+			set {
+				if (expanded == value) return;
+				expanded = value;
+				UpdateTree();
+			}
+		}
+		public Boolean HasCheckBox {
+			get { return hasCheckBox; }
+			set {
+				if (hasCheckBox == value) return;
+				hasCheckBox = value;
+				Invalidate();
+			}
+		}
+		public Boolean Checked {
+			get { return isChecked; }
+			set {
+				if (isChecked == value) return;
+				isChecked = value;
+				Invalidate();
+				if (TreeView != null) TreeView.RaiseNodeCheckedChanged(this);
+			}
+		}
+		public FBGTreeNode(IFBGTreeParent parent, Object item) {
+			this.TreeView = parent.TreeView;
+			this.Depth = parent.Depth + 1;
+			this.Parent = parent;
+			this.item = item;
+			parent.AddChild(this);
+		}
+		public void Remove() {
+			Parent.RemoveChild(this);
+		}
+		void IFBGTreeParent.AddChild(FBGTreeNode node) {
+			children.Add(node);
+			if (Expanded) UpdateTree();
+			else Invalidate();
+		}
+		void IFBGTreeParent.RemoveChild(FBGTreeNode node) {
+			children.Remove(node);
+			TreeView.ReleaseNodeFromTree(node);
+			if (Expanded) UpdateTree();
+			else Invalidate();
+		}
+		public void Invalidate() {
+			if (TreeView != null) TreeView.Invalidate(this);
+		}
+		private void UpdateTree() {
+			if (TreeView != null) TreeView.UpdateView();
+		}
+		public FBGTreeNode AddNode(Object item) {
+			return new FBGTreeNode(this, item);
+		}
+	}
+	public class FBGTreeView : FBGControl, IFBGTreeParent {
+		private List<FBGTreeNode> items = new List<FBGTreeNode>();
+		private List<FBGTreeNode> itemsView = new List<FBGTreeNode>();
+		private FBGTreeNode selected = null;
+		private FBGTreeNode highlighted = null;
+		private Boolean hasScrollBar = false;
+		private Boolean hitScrollBar = false;
+		private int offset = 0;
+		private ButtonState buttonUpState = ButtonState.Normal;
+		private ButtonState buttonDownState = ButtonState.Normal;
+		private Converter<Object, String> itemFormatter = null;
+		public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } }
+		public FBGTreeNode SelectedNode { get { return selected; } set { if (selected != value) { selected = value; Invalidate(); RaiseEvent(SelectedNodeChanged); } } }
+		public IList<FBGTreeNode> Nodes { get { return items.AsReadOnly(); } }
+		public event EventHandler SelectedNodeChanged;
+		public event EventHandler NodeCheckedChanged;
+		public FBGTreeView(IFBGContainerControl parent) : base(parent) {
+			BackColor = Color.White;
+		}
+		FBGTreeView IFBGTreeParent.TreeView { get { return this; } }
+		int IFBGTreeParent.Depth { get { return -1; } }
+		void IFBGTreeParent.AddChild(FBGTreeNode node) {
+			items.Add(node);
+			UpdateView();
+		}
+		void IFBGTreeParent.RemoveChild(FBGTreeNode node) {
+			items.Remove(node);
+			ReleaseNodeFromTree(node);
+			UpdateView();
+		}
+		public FBGTreeNode AddNode(Object item) { return new FBGTreeNode(this, item); }
+		internal void ReleaseNodeFromTree(FBGTreeNode node) {
+			if (highlighted == node) highlighted = null;
+			if (selected == node) SelectedNode = null;
+		}
+		internal void RaiseNodeCheckedChanged(FBGTreeNode node) {
+			RaiseEvent(NodeCheckedChanged);
+		}
+		internal void UpdateView() {
+			List<FBGTreeNode> newView = new List<FBGTreeNode>();
+			Stack<Queue<FBGTreeNode>> stack = new Stack<Queue<FBGTreeNode>>();
+			stack.Push(new Queue<FBGTreeNode>(items));
+			while (stack.Count > 0) {
+				Queue<FBGTreeNode> list = stack.Peek();
+				if (list.Count == 0) {
+					stack.Pop();
+					continue;
+				}
+				FBGTreeNode item = list.Dequeue();
+				newView.Add(item);
+				if (item.Expanded) stack.Push(new Queue<FBGTreeNode>(item.Children));
+			}
+			itemsView = newView;
+			Invalidate();
+		}
+		internal void Invalidate(FBGTreeNode node) {
+			int i = itemsView.IndexOf(node);
+			if (i == -1) return;
+			int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2;
+			Invalidate(new Rectangle(1, i * lh, Bounds.Width - 1, lh));
+		}
+		protected override void Paint(Graphics g) {
+			base.Paint(g);
+			int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2;
+			int th = lh * itemsView.Count;
+			hasScrollBar = offset > 0 || th + 2 > Bounds.Height;
+			int y = 2;
+			using (Pen dottedpen = new Pen(Brushes.Black)) {
+				dottedpen.DashStyle = DashStyle.Dot;
+				using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) {
+					int lw = Bounds.Width - 2;
+					if (hasScrollBar) lw -= 17;
+					for (int i = offset; i < itemsView.Count; i++) {
+						FBGTreeNode item = itemsView[i];
+						if (y + 2 < Bounds.Height) {
+							Object obj = item.Item;
+							String text = itemFormatter == null ? (obj == null ? String.Empty : obj.ToString()) : itemFormatter(obj);
+							if (item == selected) g.FillRectangle(Brushes.DarkGray, 2, y, lw - 2, lh);
+							if (item == highlighted) g.DrawRectangle(dottedpen, 2, y, lw - 3, lh - 1);
+							int x = 3 + 19 * item.Depth + 14;
+							if (item.HasCheckBox) {
+								x += 2;
+								ControlPaint.DrawCheckBox(g, x, y, lh, lh, item.Checked ? ButtonState.Checked : ButtonState.Normal);
+								x += lh + 1;
+							}
+							g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(x, y, lw - x, lh), sf);
+						}
+						int upto = y + 2 + 4 - 8;
+						for (int j = i - 1; j >= 0; j--) {
+							if (itemsView[j].Depth < item.Depth) {
+								break;
+							}
+							if (itemsView[j].Depth == item.Depth) {
+								if (itemsView[j].Children.Count > 0) {
+									upto = 2 + lh * (j - offset) + 10;
+								} else {
+									upto = 2 + lh * (j - offset) + 6;
+								}
+								break;
+							}
+							if (j <= offset) {
+								upto = 2 + 2 + 4 - 8;
+								break;
+							}
+						}
+						if (item.Children.Count > 0) {
+							g.DrawRectangle(Pens.Black, 3 + 19 * item.Depth, y + 2, 8, 8);
+							g.DrawLine(Pens.Black, 3 + 19 * item.Depth + 2, y + 2 + 4, 3 + 19 * item.Depth + 6, y + 2 + 4);
+							if (!item.Expanded) g.DrawLine(Pens.Black, 3 + 19 * item.Depth + 4, y + 4, 3 + 19 * item.Depth + 4, y + 2 + 6);
+							g.DrawLine(dottedpen, 3 + 19 * item.Depth + 8, y + 2 + 4, 3 + 19 * item.Depth + 14, y + 2 + 4);
+							g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4 - 6, 3 + 19 * item.Depth + 4, upto);
+						} else {
+							g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4, 3 + 19 * item.Depth + 14, y + 2 + 4);
+							g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4 - 2, 3 + 19 * item.Depth + 4, upto);
+						}
+						y += lh;
+						//if (y + lh + 2 >= Bounds.Height && item.Depth == 0) break;
+						if (y + 2 >= Bounds.Height && item.Depth == 0) break;
+					}
+				}
+			}
+			//if (y < th) hasScrollBar = true;
+			//hasScrollBar = true;
+			if (hasScrollBar) {
+				int xoff = Bounds.Width - 17;
+				using (Brush b = new LinearGradientBrush(new Rectangle(xoff, 0, 17, 1), Color.LightGray, Color.White, LinearGradientMode.Horizontal))
+					g.FillRectangle(b, xoff, 17, 16, Bounds.Height - 17 - 17);
+				ControlPaint.DrawScrollButton(g, xoff, 1, 16, 16, ScrollButton.Up, buttonUpState);
+				ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - 17, 16, 16, ScrollButton.Down, buttonDownState);
+				g.DrawRectangle(Pens.Black, new Rectangle(xoff, 17 + offset * (Bounds.Height - 17 - 17 - 20) / (itemsView.Count - 1), 15, 20));
+			}
+			g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1);
+		}
+		protected override void MouseDown(Point position, MouseButtons buttons) {
+			CaptureKeyboard(true);
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(true);
+				if (hasScrollBar && position.X > Bounds.Width - 17) {
+					hitScrollBar = true;
+					if (position.Y < 17) {
+						offset--;
+						buttonUpState = ButtonState.Pushed;
+					} else if (position.Y > Bounds.Height - 17) {
+						offset++;
+						buttonDownState = ButtonState.Pushed;
+					} else {
+						offset = (int)Math.Round((position.Y - 17) * (itemsView.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10));
+					}
+					if (offset < 0) offset = 0;
+					if (offset >= itemsView.Count) offset = itemsView.Count - 1;
+					Invalidate();
+				} else {
+					MouseHandler(position, buttons, true);
+				}
+			}
+		}
+		protected override void MouseMove(Point position, MouseButtons buttons) {
+			if (hitScrollBar) {
+				if (position.Y < 17) {
+				} else if (position.Y > Bounds.Height - 17) {
+				} else {
+					offset = (int)Math.Round((position.Y - 17) * (itemsView.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10));
+					if (offset < 0) offset = 0;
+					if (offset >= itemsView.Count) offset = itemsView.Count - 1;
+					Invalidate();
+				}
+				return;
+			}
+			MouseHandler(position, buttons, false);
+		}
+		protected override void MouseUp(Point position, MouseButtons buttons) {
+			if ((buttons & MouseButtons.Left) != 0) {
+				CaptureMouse(false);
+				buttonUpState = buttonDownState = ButtonState.Normal;
+				Invalidate();
+				if (hitScrollBar) {
+					hitScrollBar = false;
+					return;
+				}
+			}
+			if (hitScrollBar) return;
+			MouseHandler(position, buttons, false);
+		}
+		private void MouseHandler(Point position, MouseButtons buttons, Boolean down) {
+			if ((buttons & MouseButtons.Left) != 0 && itemsView.Count > 0) {
+				int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2;
+				int i = (position.Y - 2) / lh + offset;
+				if (i < 0) i = 0;
+				if (i >= itemsView.Count) i = itemsView.Count - 1;
+				Boolean changed = false;
+				FBGTreeNode current = itemsView[i];
+				if (!ReferenceEquals(highlighted, current)) changed = true;
+				highlighted = current;
+				if (current.Children.Count > 0 && (new Rectangle(3 + 19 * current.Depth, 2 + lh * (i - offset) + 2, 8, 8)).Contains(position)) {
+					if (down) current.Expanded = !current.Expanded;
+				} else if (current.HasCheckBox && (new Rectangle(3 + 19 * current.Depth + 14 + 2, 2 + lh * (i - offset), lh, lh)).Contains(position)) {
+					if (down) current.Checked = !current.Checked;
+				} else if ((new Rectangle(Point.Empty, Bounds.Size)).Contains(position)) {
+					SelectedNode = current;
+					changed = false;
+				}
+				if (changed) Invalidate();
+			}
+		}
+		protected override void KeyDown(Keys key) {
+			base.KeyDown(key);
+			if (key == Keys.Up) {
+				int i = itemsView.IndexOf(selected);
+				i--;
+				if (i >= 0) SelectAndScrollIntoView(itemsView[i]);
+			} else if (key == Keys.Down) {
+				int i = itemsView.IndexOf(selected);
+				i++;
+				if (i < itemsView.Count) SelectAndScrollIntoView(itemsView[i]);
+			} else if (key == Keys.Left && selected != null) {
+				if (selected.Expanded && selected.Children.Count > 0) {
+					selected.Expanded = false;
+				} else {
+					FBGTreeNode tn = selected.Parent as FBGTreeNode;
+					if (tn != null) SelectAndScrollIntoView(tn);
+				}
+			} else if (key == Keys.Right && selected != null) {
+				if (!selected.Expanded && selected.Children.Count > 0) {
+					selected.Expanded = true;
+				} else if (selected.Children.Count > 0) {
+					SelectAndScrollIntoView(selected.Children[0]);
+				}
+			} else if (key == Keys.Space && selected != null) {
+				if (selected.HasCheckBox) selected.Checked = !selected.Checked;
+			}
+		}
+		private void SelectAndScrollIntoView(FBGTreeNode tn) {
+			int i = itemsView.IndexOf(tn);
+			if (i == -1) {
+				for (FBGTreeNode tp = tn.Parent as FBGTreeNode; tp != null; tp = tp.Parent as FBGTreeNode) if (!tp.Expanded) tp.Expanded = true;
+				i = itemsView.IndexOf(tn);
+			}
+			if (i != -1) {
+				int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2;
+				if (i < offset) offset = i;
+				offset = Math.Max(offset, i - Bounds.Height / lh + 1);
+			}
+			highlighted = tn;
+			SelectedNode = tn;
+		}
+	}
+}

Mercurial > hg > ucis.core

comparison FBGUI/FBGUI.cs @ 30:24e918d2ac18