Mercurial > hg > ucis.core
annotate FBGUI/FBGUI.cs @ 88:c9da306e06c9
FBGUI: Improved FBGContainerControl thread safety
| author | Ivo Smits <Ivo@UCIS.nl> |
|---|---|
| date | Tue, 11 Mar 2014 17:45:48 +0100 |
| parents | 4ca44dd25a6a |
| children | 3347e1758e55 |
| rev | line source |
|---|---|
| 23 | 1 ???using System; |
| 2 using System.Collections.Generic; | |
|
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3 using System.Diagnostics; |
| 23 | 4 using System.Drawing; |
| 5 using System.Drawing.Drawing2D; | |
| 6 using System.Drawing.Imaging; | |
| 7 using System.IO; | |
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8 using System.Reflection; |
| 23 | 9 using System.Threading; |
| 10 using System.Windows.Forms; | |
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11 using UCIS.Util; |
| 23 | 12 using UCIS.VNCServer; |
| 13 using ThreadingTimer = System.Threading.Timer; | |
| 14 | |
| 15 namespace UCIS.FBGUI { | |
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16 public abstract class FBGEvent { |
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17 } |
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18 public enum FBGPointingEventType { |
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19 Move, |
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20 ButtonDown, |
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21 ButtonUp |
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22 } |
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23 public class FBGPointingEvent : FBGEvent { |
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24 private Point position; |
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25 public Point Position { get { return position; } set { position = value; } } |
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26 public int X { get { return position.X; } set { position.X = value; } } |
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27 public int Y { get { return position.Y; } set { position.Y = value; } } |
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28 public MouseButtons Buttons { get; private set; } |
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29 public FBGPointingEventType Type { get; private set; } |
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30 public FBGCursor Cursor { get; set; } |
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31 public FBGPointingEvent(Point position, MouseButtons buttons, FBGPointingEventType type) { |
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32 this.Position = position; |
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33 this.Buttons = buttons; |
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34 this.Type = type; |
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35 } |
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36 } |
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37 public class FBGKeyboardEvent : FBGEvent { |
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38 public Keys KeyData { get; private set; } |
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39 public Keys KeyCode { get { return KeyData & Keys.KeyCode; } } |
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40 public Keys Modifiers { get { return KeyData & Keys.Modifiers; } } |
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41 public Boolean Shift { get { return (KeyData & Keys.Shift) != 0; } } |
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42 public Boolean Control { get { return (KeyData & Keys.Control) != 0; } } |
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43 public Boolean Alt { get { return (KeyData & Keys.Alt) != 0; } } |
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44 public Boolean IsDown { get; private set; } |
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45 public Char KeyChar { get; private set; } |
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46 public FBGKeyboardEvent(Keys keyData, Char keyChar, Boolean isDown) { |
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47 this.KeyData = keyData; |
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48 this.KeyChar = keyChar; |
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49 this.IsDown = isDown; |
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50 } |
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51 } |
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52 public class FBGPaintEvent : FBGEvent { |
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53 public Graphics Canvas { get; private set; } |
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54 public FBGPaintEvent(Graphics canvas) { |
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55 this.Canvas = canvas; |
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56 } |
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57 } |
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58 public class FBGKeyboardCaptureEvent : FBGEvent { |
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59 public Boolean Capture { get; set; } |
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60 public FBGKeyboardCaptureEvent(Boolean capture) { |
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61 this.Capture = capture; |
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62 } |
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63 } |
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64 public abstract class FBGMessage { |
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65 public IFBGControl Source { get; private set; } |
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66 protected FBGMessage(IFBGControl source) { |
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67 this.Source = source; |
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68 } |
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69 } |
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70 public class FBGInvalidateMessage : FBGMessage { |
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71 public Rectangle Area { get; set; } |
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72 public FBGInvalidateMessage(IFBGControl source, Rectangle area) : base(source) { |
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73 this.Area = area; |
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74 } |
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75 } |
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76 public class FBGPointingCaptureMessage : FBGMessage { |
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77 public Boolean Capture { get; set; } |
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78 public FBGPointingCaptureMessage(IFBGControl source, Boolean capture) : base(source) { |
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79 this.Capture = capture; |
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80 } |
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81 } |
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82 public class FBGKeyboardCaptureMessage : FBGMessage { |
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83 public Boolean Capture { get; set; } |
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84 public FBGKeyboardCaptureMessage(IFBGControl source, Boolean capture) : base(source) { |
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85 this.Capture = capture; |
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86 } |
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87 } |
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88 |
| 23 | 89 public interface IFBGControl { |
| 90 Rectangle Bounds { get; set; } | |
| 91 Boolean Visible { get; set; } | |
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92 void HandleEvent(FBGEvent e); |
| 23 | 93 void Orphaned(); |
| 94 } | |
| 95 public interface IFBGContainerControl { | |
| 96 void AddControl(IFBGControl control); | |
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97 Boolean RemoveControl(IFBGControl control); |
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98 void HandleMessage(IFBGControl sender, FBGMessage e); |
| 78 | 99 Size ClientSize { get; } |
| 23 | 100 } |
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101 |
| 23 | 102 public class FBGControl : IFBGControl { |
| 103 private Rectangle bounds = new Rectangle(0, 0, 100, 100); | |
| 104 private Color backColor = Color.Transparent; | |
| 105 private Boolean visible = true; | |
| 106 public virtual IFBGContainerControl Parent { get; private set; } | |
| 107 public event MouseEventHandler OnMouseDown; | |
| 108 public event MouseEventHandler OnMouseMove; | |
| 109 public event MouseEventHandler OnMouseUp; | |
| 110 public event PaintEventHandler OnPaint; | |
| 111 public event EventHandler OnResize; | |
| 112 public event EventHandler OnMove; | |
| 113 public FBGControl(IFBGContainerControl parent) { | |
| 114 this.Parent = parent; | |
| 115 if (Parent != null) Parent.AddControl(this); | |
| 116 } | |
| 117 public virtual Rectangle Bounds { | |
| 118 get { return bounds; } | |
| 119 set { | |
| 120 if (bounds == value) return; | |
| 121 Rectangle old = bounds; | |
| 122 bounds = value; | |
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123 Invalidate(Rectangle.Union(new Rectangle(Point.Empty, value.Size), new Rectangle(old.X - value.X, old.Y - value.Y, old.Width, old.Height))); |
| 23 | 124 if (value.Location != old.Location) RaiseEvent(OnMove); |
| 125 if (value.Size != old.Size) RaiseEvent(OnResize); | |
| 126 } | |
| 127 } | |
| 128 public virtual Boolean Visible { | |
| 129 get { return visible; } | |
| 130 set { | |
| 131 visible = value; | |
| 132 Invalidate(); | |
| 133 } | |
| 134 } | |
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135 public virtual FBGCursor Cursor { get; set; } |
| 23 | 136 public Size Size { get { return Bounds.Size; } set { Rectangle r = Bounds; r.Size = value; Bounds = r; } } |
| 137 public Point Location { get { return Bounds.Location; } set { Rectangle r = Bounds; r.Location = value; Bounds = r; } } | |
| 138 public int Left { get { return Bounds.Left; } set { Rectangle r = Bounds; r.X = value; Bounds = r; } } | |
| 139 public int Top { get { return Bounds.Top; } set { Rectangle r = Bounds; r.Y = value; Bounds = r; } } | |
| 140 public int Width { get { return Bounds.Width; } set { Rectangle r = Bounds; r.Width = value; Bounds = r; } } | |
| 141 public int Height { get { return Bounds.Height; } set { Rectangle r = Bounds; r.Height = value; Bounds = r; } } | |
| 142 public virtual Color BackColor { get { return backColor; } set { if (backColor == value) return; backColor = value; Invalidate(); } } | |
| 143 public virtual void Invalidate() { | |
| 144 Invalidate(new Rectangle(Point.Empty, Bounds.Size)); | |
| 145 } | |
| 146 public virtual void Invalidate(Rectangle rect) { | |
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147 Parent.HandleMessage(this, new FBGInvalidateMessage(this, rect)); |
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148 } |
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149 void IFBGControl.HandleEvent(FBGEvent e) { |
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150 HandleEvent(e); |
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151 } |
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152 protected virtual void HandleEvent(FBGEvent e) { |
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153 if (e is FBGPaintEvent) HandlePaintEvent((FBGPaintEvent)e); |
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154 else if (e is FBGPointingEvent) HandlePointingEvent((FBGPointingEvent)e); |
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155 else if (e is FBGKeyboardEvent) HandleKeyboardEvent((FBGKeyboardEvent)e); |
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156 else if (e is FBGKeyboardCaptureEvent) HandleKeyboardCaptureEvent((FBGKeyboardCaptureEvent)e); |
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157 } |
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158 protected virtual void HandlePaintEvent(FBGPaintEvent e) { |
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159 Paint(e.Canvas); |
| 23 | 160 } |
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161 protected virtual void HandlePointingEvent(FBGPointingEvent e) { |
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162 if (Cursor != null) e.Cursor = Cursor; |
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163 switch (e.Type) { |
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164 case FBGPointingEventType.Move: MouseMove(e.Position, e.Buttons); break; |
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165 case FBGPointingEventType.ButtonDown: MouseDown(e.Position, e.Buttons); break; |
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166 case FBGPointingEventType.ButtonUp: MouseUp(e.Position, e.Buttons); break; |
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167 } |
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168 } |
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169 protected virtual void HandleKeyboardEvent(FBGKeyboardEvent e) { |
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170 if (e.IsDown) { |
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171 if (e.KeyData != Keys.None) KeyDown(e.KeyData); |
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172 if (e.KeyChar != Char.MinValue) KeyPress(e.KeyChar); |
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173 } else { |
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174 if (e.KeyData != Keys.None) KeyUp(e.KeyData); |
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175 } |
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176 } |
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177 protected virtual void HandleKeyboardCaptureEvent(FBGKeyboardCaptureEvent e) { |
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178 if (!e.Capture) LostKeyboardCapture(); |
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179 } |
| 23 | 180 void IFBGControl.Orphaned() { Orphaned(); } |
| 181 protected virtual void Paint(Graphics g) { | |
| 182 if (!visible) return; | |
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183 if (backColor.A == 0xff) g.Clear(backColor); |
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184 else if (backColor.A != 0) using (Brush brush = new SolidBrush(backColor)) g.FillRectangle(brush, g.ClipBounds); |
| 23 | 185 RaiseEvent(OnPaint, new PaintEventArgs(g, Rectangle.Round(g.ClipBounds))); |
| 186 } | |
| 187 protected virtual void MouseMove(Point position, MouseButtons buttons) { RaiseEvent(OnMouseMove, new MouseEventArgs(buttons, 0, position.X, position.Y, 0)); } | |
| 188 protected virtual void MouseDown(Point position, MouseButtons buttons) { RaiseEvent(OnMouseDown, new MouseEventArgs(buttons, 1, position.X, position.Y, 0)); } | |
| 189 protected virtual void MouseUp(Point position, MouseButtons buttons) { RaiseEvent(OnMouseUp, new MouseEventArgs(buttons, 1, position.X, position.Y, 0)); } | |
| 190 protected virtual Boolean CaptureMouse(Boolean capture) { | |
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191 FBGPointingCaptureMessage m = new FBGPointingCaptureMessage(this, capture); |
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192 Parent.HandleMessage(this, m); |
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193 return capture == m.Capture; |
| 23 | 194 } |
| 195 protected virtual void KeyDown(Keys key) { } | |
| 196 protected virtual void KeyPress(Char keyChar) { } | |
| 197 protected virtual void KeyUp(Keys key) { } | |
| 198 protected virtual Boolean CaptureKeyboard(Boolean capture) { | |
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199 FBGKeyboardCaptureMessage m = new FBGKeyboardCaptureMessage(this, capture); |
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200 Parent.HandleMessage(this, m); |
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201 return capture == m.Capture; |
| 23 | 202 } |
| 203 protected virtual void LostKeyboardCapture() { } | |
| 204 protected virtual void Orphaned() { | |
| 205 //IDisposable disp = this as IDisposable; | |
| 206 //if (!ReferenceEquals(disp, null)) disp.Dispose(); | |
| 207 } | |
| 208 protected void RaiseEvent(KeyEventHandler eh, KeyEventArgs ea) { if (eh != null) eh(this, ea); } | |
| 209 protected void RaiseEvent(KeyPressEventHandler eh, KeyPressEventArgs ea) { if (eh != null) eh(this, ea); } | |
| 210 protected void RaiseEvent(MouseEventHandler eh, MouseEventArgs ea) { if (eh != null) eh(this, ea); } | |
| 211 protected void RaiseEvent(PaintEventHandler eh, PaintEventArgs ea) { if (eh != null) eh(this, ea); } | |
| 212 protected void RaiseEvent<T>(EventHandler<T> eh, T ea) where T : EventArgs { if (eh != null) eh(this, ea); } | |
| 213 protected void RaiseEvent(EventHandler eh, EventArgs ea) { if (eh != null) eh(this, ea); } | |
| 214 protected void RaiseEvent(EventHandler eh) { if (eh != null) eh(this, new EventArgs()); } | |
| 215 } | |
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216 public class FBGContainerControl : FBGControl, IFBGContainerControl, IList<IFBGControl> { |
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217 protected IFBGControl[] controls = new IFBGControl[0]; |
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218 protected IFBGControl mouseCaptureControl = null; |
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219 protected IFBGControl keyboardCaptureControl = null; |
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220 public virtual Rectangle ClientRectangle { get { return new Rectangle(Point.Empty, Bounds.Size); } } |
| 78 | 221 public virtual Size ClientSize { get { return ClientRectangle.Size; } set { Bounds = new Rectangle(Bounds.Location, Bounds.Size - ClientRectangle.Size + value); } } |
| 23 | 222 public FBGContainerControl(IFBGContainerControl parent) : base(parent) { } |
| 223 void IFBGContainerControl.AddControl(IFBGControl control) { AddControl(control); } | |
| 224 protected virtual void AddControl(IFBGControl control) { | |
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225 ArrayUtil.Add(ref controls, control); |
| 23 | 226 if (control.Visible) Invalidate(control); |
| 227 } | |
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228 public virtual Boolean RemoveControl(IFBGControl control) { |
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229 if (!ArrayUtil.Remove(ref controls, control)) return false; |
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230 if (control.Visible) Invalidate(control); |
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231 HandleMessage(control, new FBGPointingCaptureMessage(control, false)); |
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232 HandleMessage(control, new FBGKeyboardCaptureMessage(control, false)); |
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233 control.Orphaned(); |
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234 return true; |
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235 } |
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236 public virtual void RemoveAllControls() { |
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237 IFBGControl[] c = Interlocked.Exchange(ref controls, new IFBGControl[0]); |
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238 foreach (IFBGControl control in c) { |
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239 HandleMessage(control, new FBGPointingCaptureMessage(control, false)); |
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240 HandleMessage(control, new FBGKeyboardCaptureMessage(control, false)); |
| 23 | 241 control.Orphaned(); |
| 242 } | |
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243 Invalidate(); |
| 23 | 244 } |
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245 public IList<IFBGControl> Controls { get { return this; } } |
| 23 | 246 public virtual Point PointToChild(IFBGControl child, Point point) { |
| 247 return point - (Size)child.Bounds.Location - (Size)ClientRectangle.Location; | |
| 248 } | |
| 249 public virtual Point PointFromChild(IFBGControl child, Point point) { | |
| 250 return point + (Size)child.Bounds.Location + (Size)ClientRectangle.Location; | |
| 251 } | |
| 252 public virtual void BringControlToFront(IFBGControl control) { | |
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253 if (controls.Length == 0) return; |
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254 int oldindex = Array.IndexOf(controls, control); |
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255 if (oldindex == -1 || oldindex == controls.Length - 1) return; |
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256 for (int i = oldindex; i < controls.Length - 1; i++) controls[i] = controls[i + 1]; |
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257 controls[controls.Length - 1] = control; |
| 23 | 258 if (control.Visible) Invalidate(control); |
| 259 } | |
| 260 public virtual void Invalidate(IFBGControl control) { | |
| 261 Invalidate(new Rectangle(PointFromChild(control, Point.Empty), control.Bounds.Size)); | |
| 262 } | |
| 263 public virtual void Invalidate(IFBGControl control, Rectangle rect) { | |
| 264 Invalidate(new Rectangle(PointFromChild(control, rect.Location), rect.Size)); | |
| 265 } | |
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266 protected override void HandlePaintEvent(FBGPaintEvent e) { |
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267 base.HandlePaintEvent(e); |
| 23 | 268 GraphicsState state2 = null; |
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269 Graphics g = e.Canvas; |
| 78 | 270 Rectangle childarea = ClientRectangle; |
| 271 if (childarea.X != 0 || childarea.Y != 0 || childarea.Width != Bounds.Width || childarea.Height != Bounds.Height) { | |
| 23 | 272 state2 = g.Save(); |
| 273 g.TranslateTransform(childarea.X, childarea.Y, MatrixOrder.Append); | |
| 274 g.IntersectClip(new Rectangle(Point.Empty, childarea.Size)); | |
| 275 } | |
| 276 foreach (IFBGControl control in controls) { | |
| 277 if (!control.Visible) continue; | |
| 278 if (control.Bounds.Width <= 0 || control.Bounds.Height <= 0) continue; | |
| 279 if (!g.ClipBounds.IntersectsWith((RectangleF)control.Bounds)) continue; | |
| 280 GraphicsState state = g.Save(); | |
| 281 g.TranslateTransform(control.Bounds.X, control.Bounds.Y, MatrixOrder.Append); | |
| 282 g.IntersectClip(new Rectangle(Point.Empty, control.Bounds.Size)); | |
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283 control.HandleEvent(e); |
| 23 | 284 g.Restore(state); |
| 285 } | |
| 286 if (state2 != null) g.Restore(state2); | |
| 287 } | |
| 288 public IFBGControl FindControlAtPosition(Point p) { | |
| 78 | 289 Rectangle childarea = ClientRectangle; |
| 290 if (!childarea.Contains(p)) return null; | |
| 23 | 291 p.Offset(-childarea.X, -childarea.Y); |
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292 return Array.FindLast(controls, delegate(IFBGControl control) { return control.Visible && control.Bounds.Contains(p); }); |
| 23 | 293 } |
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294 protected override void HandlePointingEvent(FBGPointingEvent e) { |
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295 IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : FindControlAtPosition(e.Position); |
| 23 | 296 if (control == null) { |
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297 base.HandlePointingEvent(e); |
| 23 | 298 } else { |
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299 if (Cursor != null) e.Cursor = Cursor; |
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300 e.Position = PointToChild(control, e.Position); |
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301 control.HandleEvent(e); |
| 23 | 302 } |
| 303 } | |
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304 void IFBGContainerControl.HandleMessage(IFBGControl sender, FBGMessage e) { |
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305 HandleMessage(sender, e); |
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306 } |
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307 protected virtual void HandleMessage(IFBGControl sender, FBGMessage e) { |
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308 if (e is FBGPointingCaptureMessage) HandlePointingCaptureMessage(sender, (FBGPointingCaptureMessage)e); |
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309 else if (e is FBGKeyboardCaptureMessage) HandleKeyboardCaptureMessage(sender, (FBGKeyboardCaptureMessage)e); |
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310 else if (e is FBGInvalidateMessage) HandleInvalidateMessage(sender, (FBGInvalidateMessage)e); |
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311 } |
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312 protected virtual void HandleInvalidateMessage(IFBGControl sender, FBGInvalidateMessage e) { |
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313 e.Area = new Rectangle(PointFromChild(sender, e.Area.Location), e.Area.Size); |
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314 Parent.HandleMessage(this, e); |
| 23 | 315 } |
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316 protected virtual void HandlePointingCaptureMessage(IFBGControl sender, FBGPointingCaptureMessage e) { |
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317 if (e.Capture && !(ReferenceEquals(mouseCaptureControl, null) || ReferenceEquals(mouseCaptureControl, sender))) e.Capture = false; |
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318 else if (!e.Capture && !ReferenceEquals(mouseCaptureControl, sender)) e.Capture = false; |
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319 else { |
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320 Parent.HandleMessage(this, e); |
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321 mouseCaptureControl = e.Capture ? sender : null; |
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322 } |
| 23 | 323 } |
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324 protected override void HandleKeyboardEvent(FBGKeyboardEvent e) { |
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325 if (ReferenceEquals(keyboardCaptureControl, null)) base.HandleKeyboardEvent(e); |
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326 else keyboardCaptureControl.HandleEvent(e); |
| 23 | 327 } |
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328 protected virtual void HandleKeyboardCaptureMessage(IFBGControl sender, FBGKeyboardCaptureMessage e) { |
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329 if (!e.Capture && !(ReferenceEquals(keyboardCaptureControl, null) || ReferenceEquals(keyboardCaptureControl, sender))) e.Capture = false; |
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330 else { |
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331 Parent.HandleMessage(this, e); |
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332 IFBGControl prev = keyboardCaptureControl; |
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333 keyboardCaptureControl = e.Capture ? sender : null; |
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334 if (prev != null && prev != sender) prev.HandleEvent(new FBGKeyboardCaptureEvent(false)); |
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335 } |
| 23 | 336 } |
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337 protected override void HandleKeyboardCaptureEvent(FBGKeyboardCaptureEvent e) { |
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338 if (keyboardCaptureControl != null) keyboardCaptureControl.HandleEvent(new FBGKeyboardCaptureEvent(false)); |
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339 base.HandleKeyboardCaptureEvent(e); |
| 23 | 340 } |
| 341 protected override void Orphaned() { | |
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342 IFBGControl[] c = Interlocked.Exchange(ref controls, new IFBGControl[0]); |
| 23 | 343 foreach (IFBGControl control in c) control.Orphaned(); |
| 344 mouseCaptureControl = null; | |
| 345 keyboardCaptureControl = null; | |
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346 base.Orphaned(); |
| 23 | 347 } |
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348 |
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349 #region IList<IFBGControl> Members |
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350 int IList<IFBGControl>.IndexOf(IFBGControl item) { return Array.IndexOf(controls, item); } |
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351 void IList<IFBGControl>.Insert(int index, IFBGControl item) { throw new NotSupportedException(); } |
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352 void IList<IFBGControl>.RemoveAt(int index) { RemoveControl(controls[index]); } |
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353 IFBGControl IList<IFBGControl>.this[int index] { |
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354 get { return controls[index]; } |
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355 set { throw new NotSupportedException(); } |
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356 } |
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357 void ICollection<IFBGControl>.Add(IFBGControl item) { throw new NotSupportedException(); } |
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358 void ICollection<IFBGControl>.Clear() { RemoveAllControls(); } |
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359 bool ICollection<IFBGControl>.Contains(IFBGControl item) { return Array.IndexOf(controls, item) != -1; } |
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360 void ICollection<IFBGControl>.CopyTo(IFBGControl[] array, int arrayIndex) { controls.CopyTo(array, arrayIndex); } |
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361 int ICollection<IFBGControl>.Count { get { return controls.Length; } } |
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362 bool ICollection<IFBGControl>.IsReadOnly { get { return false; } } |
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363 bool ICollection<IFBGControl>.Remove(IFBGControl item) { return RemoveControl(item); } |
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364 IEnumerator<IFBGControl> IEnumerable<IFBGControl>.GetEnumerator() { return ((IEnumerable<IFBGControl>)controls).GetEnumerator(); } |
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365 System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() { return controls.GetEnumerator(); } |
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366 #endregion |
| 23 | 367 } |
| 368 public class FBGDockContainer : FBGContainerControl { | |
| 369 private Dictionary<IFBGControl, DockStyle> dockStyles = new Dictionary<IFBGControl, DockStyle>(); | |
| 370 private Dictionary<IFBGControl, AnchorStyles> anchorStyles = new Dictionary<IFBGControl, AnchorStyles>(); | |
| 371 private Rectangle oldBounds; | |
| 372 public FBGDockContainer(IFBGContainerControl parent) | |
| 373 : base(parent) { | |
| 374 oldBounds = ClientRectangle.IsEmpty ? Bounds : new Rectangle(Bounds.Location + (Size)ClientRectangle.Location, ClientRectangle.Size); | |
| 375 } | |
| 376 protected override void AddControl(IFBGControl control) { | |
| 377 base.AddControl(control); | |
| 378 } | |
| 379 public override void BringControlToFront(IFBGControl control) { | |
| 380 base.BringControlToFront(control); | |
| 381 if (dockStyles.ContainsKey(control)) DoLayout(); | |
| 382 } | |
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383 public override Boolean RemoveControl(IFBGControl control) { |
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384 if (!base.RemoveControl(control)) return false; |
| 23 | 385 if (dockStyles.Remove(control)) DoLayout(); |
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386 return true; |
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387 } |
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388 public override void RemoveAllControls() { |
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389 base.RemoveAllControls(); |
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390 dockStyles.Clear(); |
| 23 | 391 } |
| 392 public override Rectangle Bounds { | |
| 393 get { return base.Bounds; } | |
| 394 set { | |
| 395 base.Bounds = value; | |
| 396 DoLayout(); | |
| 397 Rectangle newBounds = ClientRectangle.IsEmpty ? Bounds : new Rectangle(Bounds.Location + (Size)ClientRectangle.Location, ClientRectangle.Size); | |
| 398 foreach (KeyValuePair<IFBGControl, AnchorStyles> c in anchorStyles) { | |
| 399 Rectangle b = c.Key.Bounds; | |
| 400 if ((c.Value & AnchorStyles.Right) != 0) { | |
| 401 if ((c.Value & AnchorStyles.Left) == 0) b.X += newBounds.Width - oldBounds.Width; | |
| 402 else b.Width += newBounds.Width - oldBounds.Width; | |
| 403 } else if ((c.Value & AnchorStyles.Left) == 0) b.X += newBounds.X - oldBounds.X; | |
| 404 if ((c.Value & AnchorStyles.Bottom) != 0) { | |
| 405 if ((c.Value & AnchorStyles.Top) == 0) b.Y += newBounds.Height - oldBounds.Height; | |
| 406 else b.Height += newBounds.Height - oldBounds.Height; | |
| 407 } else if ((c.Value & AnchorStyles.Top) == 0) b.Y += newBounds.Y - oldBounds.Y; | |
| 408 c.Key.Bounds = b; | |
| 409 } | |
| 410 oldBounds = newBounds; | |
| 411 } | |
| 412 } | |
| 413 public DockStyle GetDockStyle(IFBGControl control) { | |
| 414 DockStyle ds; | |
| 415 if (!dockStyles.TryGetValue(control, out ds)) ds = DockStyle.None; | |
| 416 return ds; | |
| 417 } | |
| 418 public void SetDockStyle(IFBGControl control, DockStyle style) { | |
| 419 if (style == DockStyle.None) { | |
| 420 if (dockStyles.Remove(control)) DoLayout(); | |
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421 } else if (Array.IndexOf(controls, control) != -1) { |
| 23 | 422 anchorStyles.Remove(control); |
| 423 dockStyles[control] = style; | |
| 424 DoLayout(); | |
| 425 } | |
| 426 } | |
| 427 public AnchorStyles GetAnchorStyle(IFBGControl control) { | |
| 428 AnchorStyles ds; | |
| 429 if (!anchorStyles.TryGetValue(control, out ds)) ds = AnchorStyles.Left | AnchorStyles.Top; | |
| 430 return ds; | |
| 431 } | |
| 432 public void SetAnchorStyle(IFBGControl control, AnchorStyles style) { | |
| 433 if (style == (AnchorStyles.Left | AnchorStyles.Top)) { | |
| 434 anchorStyles.Remove(control); | |
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435 } else if (Array.IndexOf(controls, control) != -1) { |
| 23 | 436 dockStyles.Remove(control); |
| 437 anchorStyles[control] = style; | |
| 438 } | |
| 439 } | |
| 440 public void SetAnchor(IFBGControl control, AnchorStyles style, int value) { | |
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441 if (Array.IndexOf(controls, control) != -1) { |
| 23 | 442 AnchorStyles oldstyle; |
| 443 if (!anchorStyles.TryGetValue(control, out oldstyle)) oldstyle = AnchorStyles.Left | AnchorStyles.Top; | |
| 444 Rectangle b = control.Bounds; | |
| 445 switch (style) { | |
| 446 case AnchorStyles.None: throw new ArgumentException("style", "Anchor style can not be None"); | |
| 447 case AnchorStyles.Left: b.X = value; break; | |
| 448 case AnchorStyles.Top: b.Y = value; break; | |
| 449 case AnchorStyles.Right: | |
| 450 if ((oldstyle & AnchorStyles.Left) == 0) b.X = ClientRectangle.Width - b.Width - value; | |
| 451 else b.Width = ClientRectangle.Width - b.X - value; | |
| 452 break; | |
| 453 case AnchorStyles.Bottom: | |
| 454 if ((oldstyle & AnchorStyles.Top) == 0) b.Y = ClientRectangle.Height - b.Height - value; | |
| 455 else b.Height = ClientRectangle.Height - b.Y - value; | |
| 456 break; | |
| 457 default: throw new ArgumentOutOfRangeException("style", "The value vor the style argument is invalid"); | |
| 458 } | |
| 459 control.Bounds = b; | |
| 460 dockStyles.Remove(control); | |
| 461 anchorStyles[control] = oldstyle | style; | |
| 462 } | |
| 463 } | |
| 464 private void DoLayout() { | |
| 465 Rectangle a = new Rectangle(Point.Empty, ClientRectangle.IsEmpty ? Bounds.Size : ClientRectangle.Size); | |
| 466 foreach (KeyValuePair<IFBGControl, DockStyle> c in dockStyles) { | |
| 467 Rectangle b = c.Key.Bounds; | |
| 468 if (c.Value == DockStyle.Left) { | |
| 469 b.Location = a.Location; | |
| 470 b.Height = a.Height; | |
| 471 a.X += b.Width; | |
| 472 a.Width -= b.Width; | |
| 473 } else if (c.Value == DockStyle.Top) { | |
| 474 b.Location = a.Location; | |
| 475 b.Width = a.Width; | |
| 476 a.Y += b.Height; | |
| 477 a.Height -= b.Height; | |
| 478 } else if (c.Value == DockStyle.Right) { | |
| 479 b.X = a.X + a.Width - b.Width; | |
| 480 b.Y = a.Y; | |
| 481 b.Height = a.Height; | |
| 482 a.Width -= b.Width; | |
| 483 } else if (c.Value == DockStyle.Bottom) { | |
| 484 b.X = a.X; | |
| 485 b.Y = a.Y + a.Height - b.Height; | |
| 486 b.Width = a.Width; | |
| 487 a.Height -= b.Height; | |
| 488 } else if (c.Value == DockStyle.Fill) { | |
| 489 b = a; | |
| 490 } | |
| 491 c.Key.Bounds = b; | |
| 492 if (a.Width < 0) a.Width = 0; | |
| 493 if (a.Height < 0) a.Height = 0; | |
| 494 } | |
| 495 } | |
| 496 } | |
| 497 public class FBGGroupBox : FBGDockContainer { | |
| 498 private String text = String.Empty; | |
| 78 | 499 public override Rectangle ClientRectangle { get { return new Rectangle(1, 15, Bounds.Width - 2, Bounds.Height - 17); } } |
| 500 public FBGGroupBox(IFBGContainerControl parent) : base(parent) { } | |
| 23 | 501 public String Text { get { return text; } set { if (text == value) return; text = value; Invalidate(new Rectangle(0, 0, Bounds.Width, 15)); } } |
| 502 protected override void Paint(Graphics g) { | |
| 503 base.Paint(g); | |
| 504 SizeF ss = g.MeasureString(Text, SystemFonts.DefaultFont, new Size(Bounds.Width - 10 - 9, 15)); | |
| 78 | 505 g.DrawLines(Pens.Gray, new PointF[] { new PointF(8 + ss.Width + 4, 6), new Point(Bounds.Width - 1, 6), new Point(Bounds.Width - 1, Bounds.Height - 1), new Point(0, Bounds.Height - 1), new Point(0, 6), new Point(8, 6) }); |
| 23 | 506 g.DrawString(Text, SystemFonts.DefaultFont, Brushes.DarkBlue, new Rectangle(9, 0, Bounds.Width - 10 - 9, 15)); |
| 507 } | |
| 508 } | |
| 78 | 509 [System.ComponentModel.DesignerCategory("")] |
| 23 | 510 public class WinFormsFBGHost : Control, IFBGContainerControl { |
| 511 private IFBGControl childControl = null; | |
| 512 private IFBGControl mouseCaptureControl = null; | |
| 513 private IFBGControl keyboardCaptureControl = null; | |
| 514 public IFBGControl ChildControl { get { return childControl; } } | |
| 515 | |
| 516 public WinFormsFBGHost() { | |
| 517 DoubleBuffered = true; | |
| 518 } | |
| 519 | |
| 520 public virtual Point PointToChild(IFBGControl child, Point point) { | |
| 521 return point - (Size)child.Bounds.Location; | |
| 522 } | |
| 523 public virtual Point PointFromChild(IFBGControl child, Point point) { | |
| 524 return point + (Size)child.Bounds.Location; | |
| 525 } | |
| 526 | |
| 527 void IFBGContainerControl.AddControl(IFBGControl control) { | |
| 528 if (!ReferenceEquals(childControl, null)) throw new InvalidOperationException("This container can have only one child control"); | |
| 529 childControl = control; | |
| 530 control.Bounds = new Rectangle(Point.Empty, ClientSize); | |
| 531 Invalidate(control.Bounds); | |
| 532 } | |
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533 Boolean IFBGContainerControl.RemoveControl(IFBGControl control) { |
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534 if (!ReferenceEquals(childControl, control)) return false; |
| 23 | 535 childControl = null; |
| 536 Invalidate(control.Bounds); | |
| 537 if (mouseCaptureControl == control) mouseCaptureControl = null; | |
| 538 if (keyboardCaptureControl == control) control = null; | |
| 539 control.Orphaned(); | |
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540 return true; |
| 23 | 541 } |
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542 void IFBGContainerControl.HandleMessage(IFBGControl sender, FBGMessage e) { |
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543 if (e is FBGInvalidateMessage) { |
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544 FBGInvalidateMessage p = (FBGInvalidateMessage)e; |
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545 Invalidate(new Rectangle(PointFromChild(sender, p.Area.Location), p.Area.Size)); |
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546 } else if (e is FBGPointingCaptureMessage) { |
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547 FBGPointingCaptureMessage p = (FBGPointingCaptureMessage)e; |
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548 if (p.Capture && !(ReferenceEquals(mouseCaptureControl, null) || ReferenceEquals(mouseCaptureControl, sender))) p.Capture = false; |
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549 else if (!p.Capture && !ReferenceEquals(mouseCaptureControl, sender)) p.Capture = false; |
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550 else mouseCaptureControl = p.Capture ? sender : null; |
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551 } else if (e is FBGKeyboardCaptureMessage) { |
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552 FBGKeyboardCaptureMessage p = (FBGKeyboardCaptureMessage)e; |
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553 if (!p.Capture && !ReferenceEquals(keyboardCaptureControl, sender)) p.Capture = false; |
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554 else keyboardCaptureControl = p.Capture ? sender : null; |
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555 } |
| 23 | 556 } |
| 557 | |
| 558 protected override void OnPaint(PaintEventArgs e) { | |
| 559 base.OnPaint(e); | |
| 560 Graphics g = e.Graphics; | |
| 561 GraphicsState state = g.Save(); | |
| 562 g.SetClip(e.ClipRectangle); | |
| 563 if (ReferenceEquals(childControl, null)) return; | |
| 564 if (childControl.Bounds.Width <= 0 || childControl.Bounds.Height <= 0) return; | |
| 565 if (!g.ClipBounds.IntersectsWith((RectangleF)childControl.Bounds)) return; | |
| 566 g.TranslateTransform(childControl.Bounds.X, childControl.Bounds.Y, MatrixOrder.Append); | |
| 567 g.IntersectClip(new Rectangle(Point.Empty, childControl.Bounds.Size)); | |
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568 childControl.HandleEvent(new FBGPaintEvent(g)); |
| 23 | 569 g.Restore(state); |
| 570 } | |
| 571 protected override void OnResize(EventArgs e) { | |
| 572 if (!ReferenceEquals(childControl, null)) childControl.Bounds = new Rectangle(Point.Empty, ClientSize); | |
| 573 base.OnResize(e); | |
| 574 } | |
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575 void DispatchMouseEvent(MouseEventArgs e, FBGPointingEventType type) { |
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576 IFBGControl control = mouseCaptureControl != null ? mouseCaptureControl : childControl; |
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577 if (control != null) control.HandleEvent(new FBGPointingEvent(e.Location, e.Button, type)); |
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578 } |
| 23 | 579 protected override void OnMouseDown(MouseEventArgs e) { |
| 580 base.OnMouseDown(e); | |
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581 DispatchMouseEvent(e, FBGPointingEventType.ButtonDown); |
| 23 | 582 } |
| 583 protected override void OnMouseUp(MouseEventArgs e) { | |
| 584 base.OnMouseUp(e); | |
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585 DispatchMouseEvent(e, FBGPointingEventType.ButtonUp); |
| 23 | 586 } |
| 587 protected override void OnMouseMove(MouseEventArgs e) { | |
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588 DispatchMouseEvent(e, FBGPointingEventType.Move); |
| 23 | 589 } |
| 590 protected override bool IsInputChar(char charCode) { | |
| 591 return true; | |
| 592 } | |
| 593 protected override bool IsInputKey(Keys keyData) { | |
| 594 return true; | |
| 595 } | |
| 596 protected override void OnKeyDown(KeyEventArgs e) { | |
| 597 //base.OnKeyDown(e); | |
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598 if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.HandleEvent(new FBGKeyboardEvent(e.KeyData, Char.MinValue, true)); |
| 23 | 599 } |
| 600 protected override void OnKeyPress(KeyPressEventArgs e) { | |
| 601 //base.OnKeyPress(e); | |
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602 if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.HandleEvent(new FBGKeyboardEvent(Keys.None, e.KeyChar, true)); |
| 23 | 603 } |
| 604 protected override void OnKeyUp(KeyEventArgs e) { | |
| 605 //base.OnKeyUp(e); | |
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606 if (!ReferenceEquals(keyboardCaptureControl, null)) keyboardCaptureControl.HandleEvent(new FBGKeyboardEvent(e.KeyData, Char.MinValue, false)); |
| 23 | 607 } |
| 608 protected override void OnHandleDestroyed(EventArgs e) { | |
| 609 if (!ReferenceEquals(childControl, null)) childControl.Orphaned(); | |
| 610 base.OnHandleDestroyed(e); | |
| 611 } | |
| 612 } | |
| 613 public class FBGCursor { | |
| 614 public Image Image { get; private set; } | |
| 615 public Point Hotspot { get; private set; } | |
| 616 public Size Size { get; private set; } | |
| 617 public FBGCursor(Image image, Point hotspot) { | |
| 618 this.Image = image; | |
| 619 this.Hotspot = hotspot; | |
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620 this.Size = image == null ? Size.Empty : image.Size; |
| 23 | 621 } |
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622 public Rectangle Area { get { return new Rectangle(-Hotspot.X, -Hotspot.Y, Size.Width, Size.Height); } } |
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623 public FBGCursor RotateFlip(RotateFlipType type) { |
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624 if (Image == null) return this; |
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625 Image img = new Bitmap(Image); |
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626 img.RotateFlip(type); |
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627 Point hs = Hotspot; |
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628 switch (type) { |
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629 case RotateFlipType.RotateNoneFlipNone: break; |
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630 case RotateFlipType.Rotate90FlipNone: hs = new Point(img.Width - hs.Y, hs.X); break; |
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631 case RotateFlipType.Rotate180FlipNone: hs = new Point(img.Width - hs.X, img.Height - hs.Y); break; |
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632 case RotateFlipType.Rotate270FlipNone: hs = new Point(hs.Y, img.Height - hs.X); break; |
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633 case RotateFlipType.RotateNoneFlipX: hs.X = img.Width - hs.X; break; |
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634 case RotateFlipType.Rotate90FlipX: hs = new Point(hs.Y, hs.X); break; |
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635 case RotateFlipType.RotateNoneFlipY: hs.Y = img.Height - hs.Y; break; |
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636 case RotateFlipType.Rotate90FlipY: hs = new Point(img.Width - hs.Y, img.Height - hs.X); break; |
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637 } |
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638 return new FBGCursor(img, hs); |
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639 } |
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640 public static FBGCursor FromBase64Image(String data, Point hotspot) { |
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641 return new FBGCursor(Image.FromStream(new MemoryStream(Convert.FromBase64String(data))), hotspot); |
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642 } |
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643 private static FBGCursor LoadFromResource(String name, int hotX, int hotY) { |
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644 using (Stream s = Assembly.GetExecutingAssembly().GetManifestResourceStream("UCIS.FBGUI." + name + ".png")) { |
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645 return new FBGCursor(Image.FromStream(s), new Point(hotX, hotY)); |
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646 } |
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647 } |
| 23 | 648 |
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649 public static readonly FBGCursor None = new FBGCursor(null, Point.Empty); |
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650 public static readonly FBGCursor Arrow = LoadFromResource("cursor_arrow", 0, 0); |
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651 public static readonly FBGCursor Move = LoadFromResource("cursor_move", 8, 8); |
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652 public static readonly FBGCursor SizeLeft = LoadFromResource("cursor_left", 1, 10); |
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653 public static readonly FBGCursor SizeRight = SizeLeft.RotateFlip(RotateFlipType.RotateNoneFlipX); |
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654 public static readonly FBGCursor SizeTop = SizeLeft.RotateFlip(RotateFlipType.Rotate90FlipNone); |
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655 public static readonly FBGCursor SizeBottom = SizeLeft.RotateFlip(RotateFlipType.Rotate90FlipY); |
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656 public static readonly FBGCursor SizeTopLeft = LoadFromResource("cursor_topleft", 1, 1); |
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657 public static readonly FBGCursor SizeTopRight = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipX); |
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658 public static readonly FBGCursor SizeBottomLeft = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipY); |
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659 public static readonly FBGCursor SizeBottomRight = SizeTopLeft.RotateFlip(RotateFlipType.RotateNoneFlipXY); |
| 40 | 660 public static readonly FBGCursor Hand = LoadFromResource("cursor_hand", 5, 0); |
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661 public static FBGCursor ArrowCursor { get { return Arrow; } } |
| 23 | 662 } |
| 663 public class FBGRenderer : FBGContainerControl, IDisposable { | |
| 664 private FBGCursor cursor = null; | |
| 665 private Point cursorposition = Point.Empty; | |
| 666 public IFramebuffer Framebuffer { get; private set; } | |
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667 private Bitmap Frontbuffer = null; |
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668 protected Object RenderLock = new object(); |
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669 private Object StatusLock = new object(); |
| 23 | 670 public event EventHandler<InvalidateEventArgs> Painted; |
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671 protected Size size = Size.Empty; |
| 23 | 672 private ThreadingTimer PaintTimer = null; |
| 673 private Boolean PaintScheduled = false; | |
| 674 private int PaintDelay = 0; | |
| 675 public Boolean SuspendDrawing { | |
| 676 get { return suspenddrawing; } | |
| 677 set { | |
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678 lock (StatusLock) suspenddrawing = value; |
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679 if (value) return; |
| 23 | 680 lock (RenderLock) { |
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681 Refresh(DirtyRectangle); |
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682 DirtyRectangle = Rectangle.Empty; |
| 23 | 683 } |
| 684 } | |
| 685 } | |
| 686 public int RedrawDelay { | |
| 687 get { return PaintDelay; } | |
| 688 set { | |
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689 lock (StatusLock) { |
| 23 | 690 if (value < 0) throw new ArgumentOutOfRangeException("value"); |
| 691 PaintDelay = value; | |
| 692 if (PaintDelay == 0) { | |
| 693 if (PaintTimer != null) PaintTimer.Dispose(); | |
| 694 PaintTimer = null; | |
| 695 } else { | |
| 696 PaintTimer = new ThreadingTimer(PaintTimerCallback); | |
| 697 } | |
| 698 } | |
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699 if (PaintScheduled) PaintTimerCallback(null); |
| 23 | 700 } |
| 701 } | |
| 702 private Boolean suspenddrawing = false; | |
| 703 private Rectangle DirtyRectangle; | |
| 704 | |
| 705 public Point CursorPosition { | |
| 706 get { return cursorposition; } | |
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707 set { UpdateCursor(value, cursor); } |
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708 } |
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709 protected void UpdateCursor(Point position, FBGCursor cursor) { |
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710 if (cursorposition == position && cursor == this.cursor) return; |
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711 Rectangle r1 = Rectangle.Empty; |
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712 if (this.cursor != null) { |
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713 r1 = this.cursor.Area; |
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714 r1.Offset(cursorposition); |
| 23 | 715 } |
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716 if (cursor != null) { |
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717 Rectangle r2 = cursor.Area; |
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718 r2.Offset(position); |
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719 r1 = r1.IsEmpty ? r2 : Rectangle.Union(r1, r2); |
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720 } |
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721 this.cursor = cursor; |
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722 cursorposition = position; |
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723 Invalidate(r1); |
| 23 | 724 } |
| 725 public override Rectangle Bounds { | |
| 726 get { return new Rectangle(Point.Empty, size); } | |
| 727 set { throw new NotSupportedException("Can not change the top control bounds"); } | |
| 728 } | |
| 729 public FBGRenderer(IFramebuffer fb) : this(fb.Width, fb.Height) { | |
| 730 Framebuffer = fb; | |
| 731 } | |
| 732 public FBGRenderer(Size fbsize) : this(fbsize.Width, fbsize.Height) { } | |
| 733 public FBGRenderer(int width, int height) : this(new Bitmap(width, height, PixelFormat.Format32bppRgb)) { } | |
| 734 public FBGRenderer(Bitmap bmp) : base(null) { | |
| 735 Frontbuffer = bmp; | |
| 736 BackColor = SystemColors.Control; | |
| 737 size = Frontbuffer.Size; | |
| 738 } | |
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739 protected FBGRenderer() : base(null) { |
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740 BackColor = SystemColors.Control; |
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741 } |
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742 protected override void HandleInvalidateMessage(IFBGControl sender, FBGInvalidateMessage e) { |
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743 e.Area = new Rectangle(PointFromChild(sender, e.Area.Location), e.Area.Size); |
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744 Invalidate(e.Area); |
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745 } |
| 23 | 746 public override void Invalidate(Rectangle rect) { |
| 747 if (rect.Width == 0 || rect.Height == 0) return; | |
|
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748 Boolean drawDirect = false; |
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749 lock (StatusLock) { |
| 23 | 750 if (SuspendDrawing || PaintTimer != null) { |
| 751 DirtyRectangle = DirtyRectangle.IsEmpty ? rect : Rectangle.Union(DirtyRectangle, rect); | |
| 752 if (!SuspendDrawing && !PaintScheduled) { | |
| 753 PaintScheduled = true; | |
| 754 PaintTimer.Change(PaintDelay, Timeout.Infinite); | |
| 755 } | |
| 756 } else { | |
|
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757 drawDirect = true; |
| 23 | 758 } |
| 759 } | |
|
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760 if (drawDirect) Refresh(rect); |
| 23 | 761 } |
| 762 private void PaintTimerCallback(Object state) { | |
| 763 try { | |
|
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764 Rectangle rect; |
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765 lock (StatusLock) { |
| 23 | 766 PaintScheduled = false; |
|
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767 rect = DirtyRectangle; |
| 23 | 768 DirtyRectangle = Rectangle.Empty; |
| 769 } | |
|
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770 Refresh(rect); |
|
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771 } catch (Exception ex) { |
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772 Debug.WriteLine(ex); |
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773 Console.Error.WriteLine(ex); |
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774 } |
| 23 | 775 } |
|
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776 protected virtual void Refresh(Rectangle rect) { |
| 23 | 777 lock (RenderLock) { |
| 778 rect.Intersect(Bounds); | |
| 779 if (rect.Width == 0 || rect.Height == 0) return; | |
|
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780 if (Frontbuffer != null) { |
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781 using (Graphics g = Graphics.FromImage(Frontbuffer)) { |
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782 g.SetClip(rect); |
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783 Paint(g); |
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784 } |
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785 if (Framebuffer != null) Framebuffer.DrawImage(Frontbuffer, rect, rect.Location); |
| 23 | 786 } |
| 787 RaiseEvent(Painted, new InvalidateEventArgs(rect)); | |
| 788 } | |
| 789 } | |
|
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790 public virtual new void Paint(Graphics g) { |
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791 HandleEvent(new FBGPaintEvent(g)); |
|
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792 if (cursor != null && cursor.Image != null) { |
| 42 | 793 Rectangle r = cursor.Area; |
| 794 r.Offset(cursorposition); | |
| 795 g.DrawImage(cursor.Image, r); | |
| 23 | 796 } |
| 797 } | |
|
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798 protected override void HandlePointingCaptureMessage(IFBGControl sender, FBGPointingCaptureMessage e) { |
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799 if (e.Capture && !(ReferenceEquals(mouseCaptureControl, null) || ReferenceEquals(mouseCaptureControl, sender))) e.Capture = false; |
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800 else if (!e.Capture && !ReferenceEquals(mouseCaptureControl, sender)) e.Capture = false; |
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801 else mouseCaptureControl = e.Capture ? sender : null; |
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802 } |
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803 protected override void HandleKeyboardCaptureMessage(IFBGControl sender, FBGKeyboardCaptureMessage e) { |
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804 if (!e.Capture && !ReferenceEquals(keyboardCaptureControl, sender)) e.Capture = false; |
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805 else { |
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806 IFBGControl prev = keyboardCaptureControl; |
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807 keyboardCaptureControl = e.Capture ? sender : null; |
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808 if (prev != null && prev != sender) prev.HandleEvent(new FBGKeyboardCaptureEvent(false)); |
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809 } |
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810 } |
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811 |
| 23 | 812 protected override Boolean CaptureMouse(Boolean capture) { |
| 813 return true; | |
| 814 } | |
| 815 protected override Boolean CaptureKeyboard(bool capture) { | |
| 816 return true; | |
| 817 } | |
|
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818 public virtual void Dispose() { |
|
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819 lock (StatusLock) { |
| 23 | 820 if (PaintTimer != null) PaintTimer.Dispose(); |
| 821 PaintTimer = null; | |
| 822 } | |
| 823 Orphaned(); | |
|
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824 lock (RenderLock) { |
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825 if (Frontbuffer != null) Frontbuffer.Dispose(); |
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826 Frontbuffer = null; |
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827 } |
| 23 | 828 } |
| 829 public Bitmap LockBitmapBuffer() { | |
| 830 Monitor.Enter(RenderLock); | |
| 831 return Frontbuffer; | |
| 832 } | |
| 833 public void UnlockBitmapBuffer() { | |
| 834 Monitor.Exit(RenderLock); | |
| 835 } | |
|
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836 void DispatchPointingEvent(Point position, MouseButtons buttons, FBGPointingEventType type) { |
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837 FBGPointingEvent e = new FBGPointingEvent(position, buttons, type); |
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838 HandleEvent(e); |
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839 UpdateCursor(cursorposition, e.Cursor); |
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840 } |
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841 public new void MouseMove(Point position, MouseButtons buttons) { DispatchPointingEvent(position, buttons, FBGPointingEventType.Move); } |
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842 public new void MouseDown(Point position, MouseButtons buttons) { DispatchPointingEvent(position, buttons, FBGPointingEventType.ButtonDown); } |
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843 public new void MouseUp(Point position, MouseButtons buttons) { DispatchPointingEvent(position, buttons, FBGPointingEventType.ButtonUp); } |
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844 public new void KeyDown(Keys key) { KeyDown(key, Char.MinValue); } |
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845 public new void KeyPress(Char key) { KeyDown(Keys.None, key); } |
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846 public new void KeyUp(Keys key) { KeyUp(key, Char.MinValue); } |
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847 public void KeyDown(Keys key, Char keyChar) { HandleEvent(new FBGKeyboardEvent(key, keyChar, true)); } |
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848 public void KeyUp(Keys key, Char keyChar) { HandleEvent(new FBGKeyboardEvent(key, keyChar, false)); } |
| 23 | 849 } |
| 850 public class FBGForm : FBGDockContainer { | |
| 851 private Point prevPosition = Point.Empty; | |
| 852 private NonClientOps moveresize = 0; | |
| 853 private String text = String.Empty; | |
| 854 public event EventHandler TextChanged; | |
| 31 | 855 public event EventHandler Closed; |
| 23 | 856 public Boolean Sizable { get; set; } |
| 857 public Boolean Movable { get; set; } | |
| 858 public Boolean Closable { get; set; } | |
| 859 [Flags] | |
| 860 private enum NonClientOps : int { | |
| 861 None = 0, | |
| 862 Move = 1, | |
| 863 ResizeLeft = 2, | |
| 864 ResizeRight = 4, | |
| 865 ResizeTop = 8, | |
| 866 ResizeBottom = 16, | |
| 867 ButtonClose = 32, | |
| 868 MoveResize = ResizeLeft | ResizeRight | ResizeBottom | ResizeTop | Move, | |
| 869 } | |
| 78 | 870 public override Rectangle ClientRectangle { get { return new Rectangle(4, 22, Bounds.Width - 8, Bounds.Height - 26); } } |
| 23 | 871 public FBGForm(IFBGContainerControl parent) : base(parent) { |
| 872 BackColor = SystemColors.Control; | |
| 873 Sizable = true; | |
| 874 Movable = true; | |
| 875 Closable = false; | |
| 876 } | |
| 877 public String Text { get { return text; } set { if (text == value) return; text = value; Invalidate(new Rectangle(0, 0, Bounds.Width, 20)); RaiseEvent(TextChanged); } } | |
|
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878 private NonClientOps GetNonClientOperation(Point p) { |
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879 if ((new Rectangle(Bounds.Width - 5 - 14, 4, 14, 14)).Contains(p)) return NonClientOps.ButtonClose; |
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880 NonClientOps mr = 0; |
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881 if (Sizable) { |
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882 if (Movable) { |
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883 if (p.X < 4) mr |= NonClientOps.ResizeLeft; |
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884 if (p.Y < 4) mr |= NonClientOps.ResizeTop; |
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885 } |
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886 if (p.X >= Bounds.Width - 4) mr |= NonClientOps.ResizeRight; |
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887 if (p.Y >= Bounds.Height - 4) mr |= NonClientOps.ResizeBottom; |
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888 } |
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889 if (mr == 0 && Movable && p.Y < 20) mr = NonClientOps.Move; |
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890 return mr; |
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891 } |
|
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892 private void SetCursorForNonClientOperation(NonClientOps op, FBGPointingEvent e) { |
|
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893 switch (op & NonClientOps.MoveResize) { |
|
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894 case NonClientOps.Move: e.Cursor = FBGCursor.Move; break; |
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895 case NonClientOps.ResizeLeft: e.Cursor = FBGCursor.SizeLeft; break; |
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896 case NonClientOps.ResizeRight: e.Cursor = FBGCursor.SizeRight; break; |
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897 case NonClientOps.ResizeBottom: e.Cursor = FBGCursor.SizeBottom; break; |
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898 case NonClientOps.ResizeTop: e.Cursor = FBGCursor.SizeTop; break; |
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899 case NonClientOps.ResizeTop | NonClientOps.ResizeLeft: e.Cursor = FBGCursor.SizeTopLeft; break; |
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900 case NonClientOps.ResizeTop | NonClientOps.ResizeRight: e.Cursor = FBGCursor.SizeTopRight; break; |
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901 case NonClientOps.ResizeBottom | NonClientOps.ResizeLeft: e.Cursor = FBGCursor.SizeBottomLeft; break; |
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902 case NonClientOps.ResizeBottom | NonClientOps.ResizeRight: e.Cursor = FBGCursor.SizeBottomRight; break; |
|
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903 } |
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904 } |
|
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|
905 protected override void HandlePointingEvent(FBGPointingEvent e) { |
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906 if (Cursor != null) e.Cursor = Cursor; |
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907 if (HandlePointingEventA(e)) base.HandlePointingEvent(e); |
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908 } |
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909 Boolean HandlePointingEventA(FBGPointingEvent e) { |
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910 switch (e.Type) { |
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911 case FBGPointingEventType.Move: return MouseMove(e.Position, e.Buttons, e); |
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912 case FBGPointingEventType.ButtonDown: return MouseDown(e.Position, e.Buttons, e); |
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913 case FBGPointingEventType.ButtonUp: return MouseUp(e.Position, e.Buttons, e); |
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914 default: return true; |
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915 } |
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916 } |
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917 Boolean MouseDown(Point p, MouseButtons buttons, FBGPointingEvent e) { |
| 23 | 918 NonClientOps mr = 0; |
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919 if ((buttons & MouseButtons.Left) != 0) mr = GetNonClientOperation(p); |
| 23 | 920 if (mr != 0) { |
| 921 moveresize = mr; | |
| 922 prevPosition = p; | |
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923 SetCursorForNonClientOperation(moveresize, e); |
| 23 | 924 CaptureMouse(true); |
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925 return false; |
| 23 | 926 } else { |
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927 return true; |
| 23 | 928 } |
| 929 } | |
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930 Boolean MouseMove(Point position, MouseButtons buttons, FBGPointingEvent e) { |
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931 NonClientOps mr = moveresize; |
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932 if (mr == 0) mr = GetNonClientOperation(position); |
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933 if (mr == 0) return true; |
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934 SetCursorForNonClientOperation(mr, e); |
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935 if ((moveresize & NonClientOps.MoveResize) != 0) { |
| 23 | 936 Rectangle b = Bounds; |
| 937 int dx = position.X - prevPosition.X; | |
| 938 int dy = position.Y - prevPosition.Y; | |
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939 if (moveresize == NonClientOps.Move) { |
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940 b.Offset(dx, dy); |
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941 } |
| 23 | 942 if ((moveresize & NonClientOps.ResizeLeft) != 0) { |
| 943 b.X += dx; | |
| 944 b.Width -= dx; | |
| 945 } else if ((moveresize & NonClientOps.ResizeRight) != 0) { | |
| 946 b.Width += dx; | |
| 947 prevPosition.X = position.X; | |
| 948 } | |
| 949 if ((moveresize & NonClientOps.ResizeTop) != 0) { | |
| 950 b.Y += dy; | |
| 951 b.Height -= dy; | |
| 952 } else if ((moveresize & NonClientOps.ResizeBottom) != 0) { | |
| 953 b.Height += dy; | |
| 954 prevPosition.Y = position.Y; | |
| 955 } | |
| 956 if (b.Width < 55) b.Width = 55; | |
| 957 if (b.Height < 25) b.Height = 25; | |
| 958 Bounds = b; | |
| 959 } | |
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960 return false; |
| 23 | 961 } |
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962 Boolean MouseUp(Point position, MouseButtons buttons, FBGPointingEvent e) { |
| 23 | 963 if (moveresize == 0) { |
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964 SetCursorForNonClientOperation(GetNonClientOperation(position), e); |
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965 return true; |
| 23 | 966 } else if ((buttons & MouseButtons.Left) != 0) { |
| 967 MouseMove(position, buttons); | |
| 968 CaptureMouse(false); | |
| 969 if (moveresize == NonClientOps.ButtonClose && (new Rectangle(Bounds.Width - 5 - 14, 4, 14, 14)).Contains(position) && Closable) Close(); | |
| 970 moveresize = 0; | |
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971 SetCursorForNonClientOperation(GetNonClientOperation(position), e); |
| 23 | 972 } |
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973 return false; |
| 23 | 974 } |
| 975 protected override void Paint(Graphics g) { | |
| 976 base.Paint(g); | |
| 977 g.DrawRectangle(Pens.Gray, 0, 0, Bounds.Width - 1, Bounds.Height - 1); | |
| 978 g.DrawRectangle(Pens.LightGray, 1, 1, Bounds.Width - 3, Bounds.Height - 3); | |
| 979 g.DrawRectangle(Pens.DarkGray, 2, 20, Bounds.Width - 5, Bounds.Height - 23); | |
| 980 g.DrawRectangle(Pens.Gray, 3, 21, Bounds.Width - 7, Bounds.Height - 25); | |
| 981 using (Brush b = new LinearGradientBrush(new Rectangle(0, 1, 1, 18), Color.Gray, Color.LightGray, LinearGradientMode.Vertical)) | |
| 982 g.FillRectangle(b, 2, 2, Bounds.Width - 4, 18); | |
| 983 | |
| 984 g.DrawString(Text, SystemFonts.CaptionFont, Brushes.Black, 4, 1); | |
| 985 | |
| 986 g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14, 4, 14, 14); | |
| 987 g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14 - 16, 4, 14, 14); | |
| 988 g.DrawRectangle(Pens.Gray, Bounds.Width - 5 - 14 - 32, 4, 14, 14); | |
| 989 using (Brush b = new LinearGradientBrush(new Rectangle(0, 5, 1, 13), Color.LightGray, Color.DarkGray, LinearGradientMode.Vertical)) { | |
| 990 g.FillRectangle(b, Bounds.Width - 5 - 14 + 1, 5, 13, 13); | |
| 991 g.FillRectangle(b, Bounds.Width - 5 - 14 + 1 - 16, 5, 13, 13); | |
| 992 g.FillRectangle(b, Bounds.Width - 5 - 14 + 1 - 32, 5, 13, 13); | |
| 993 } | |
| 994 if (Closable) { | |
| 995 g.DrawLine(Pens.Black, Bounds.Width - 5 - 14 + 3, 4 + 3, Bounds.Width - 5 - 14 + 14 - 3, 4 + 14 - 3); | |
| 996 g.DrawLine(Pens.Black, Bounds.Width - 5 - 14 + 3, 4 + 14 - 3, Bounds.Width - 5 - 14 + 14 - 3, 4 + 3); | |
| 997 } | |
| 998 } | |
| 999 public void Close() { | |
| 1000 Parent.RemoveControl(this); | |
| 31 | 1001 RaiseEvent(Closed); |
| 23 | 1002 } |
| 1003 } | |
| 1004 public class FBGDesktop : FBGContainerControl { | |
| 1005 FBGContainerControl windowcontainer; | |
| 1006 FBGContainerControl menucontainer; | |
| 1007 Boolean startup = true; | |
| 1008 class FBGWindowState { | |
| 1009 public IFBGControl Control; | |
| 1010 public FBGButton MenuButton; | |
| 1011 public Boolean Visible; | |
| 1012 public Rectangle OldBounds; | |
| 1013 public FBGWindowState(IFBGControl cntrl, FBGButton btn) { | |
| 1014 Control = cntrl; | |
| 1015 MenuButton = btn; | |
| 1016 Visible = true; | |
| 1017 } | |
| 1018 } | |
| 1019 Dictionary<IFBGControl, FBGWindowState> windowstates = new Dictionary<IFBGControl, FBGWindowState>(); | |
| 1020 public FBGDesktop(IFBGContainerControl parent) : base(parent) { | |
| 1021 menucontainer = new FBGContainerControl(this); | |
| 1022 menucontainer.Bounds = new Rectangle(0, Bounds.Height - 25, Bounds.Width, 25); | |
| 1023 windowcontainer = new FBGContainerControl(this); | |
| 1024 windowcontainer.Bounds = new Rectangle(0, 0, Bounds.Width, Bounds.Height - 25); | |
| 1025 startup = false; | |
| 1026 } | |
| 1027 public override Rectangle Bounds { | |
| 1028 get { return base.Bounds; } | |
| 1029 set { | |
| 1030 if (Bounds == value) return; | |
| 1031 base.Bounds = value; | |
| 1032 if (startup) return; | |
| 1033 menucontainer.Bounds = new Rectangle(0, value.Height - 25, value.Width, 25); | |
| 1034 windowcontainer.Bounds = new Rectangle(0, 0, value.Width, value.Height - 25); | |
| 1035 ScaleMenuButtons(); | |
| 1036 } | |
| 1037 } | |
| 1038 protected override void AddControl(IFBGControl control) { | |
| 1039 if (startup) { | |
| 1040 base.AddControl(control); | |
| 1041 return; | |
| 1042 } | |
| 1043 ((IFBGContainerControl)windowcontainer).AddControl(control); | |
| 1044 FBGButton btn = new FBGButton(menucontainer); | |
| 1045 FBGForm formcontrol = control as FBGForm; | |
| 1046 if (formcontrol == null) { | |
| 1047 btn.Text = "Untitled"; | |
| 1048 } else { | |
| 1049 formcontrol.TextChanged += delegate(Object sender, EventArgs e) { | |
| 1050 btn.Text = formcontrol.Text; | |
| 1051 }; | |
| 1052 btn.Text = formcontrol.Text; | |
| 1053 } | |
| 1054 FBGWindowState ws = new FBGWindowState(control, btn); | |
| 1055 windowstates.Add(control, ws); | |
| 1056 ScaleMenuButtons(); | |
| 1057 btn.Click += delegate(Object sender, EventArgs e) { | |
| 1058 if (ws.Visible) { | |
| 1059 if (ws.MenuButton.BackColor == Color.DarkGray) { | |
| 1060 ws.OldBounds = ws.Control.Bounds; | |
| 1061 ws.Visible = false; | |
| 1062 ws.Control.Bounds = Rectangle.Empty; | |
| 1063 } else { | |
| 1064 windowcontainer.BringControlToFront(ws.Control); | |
| 1065 foreach (FBGWindowState wsa in windowstates.Values) if (!ReferenceEquals(ws, wsa)) wsa.MenuButton.BackColor = SystemColors.ButtonFace; | |
| 1066 ws.MenuButton.BackColor = Color.DarkGray; | |
| 1067 } | |
| 1068 } else { | |
| 1069 ws.Control.Bounds = ws.OldBounds; | |
| 1070 ws.Visible = true; | |
| 1071 windowcontainer.BringControlToFront(ws.Control); | |
| 1072 foreach (FBGWindowState wsa in windowstates.Values) if (!ReferenceEquals(ws, wsa)) wsa.MenuButton.BackColor = SystemColors.ButtonFace; | |
| 1073 ws.MenuButton.BackColor = Color.DarkGray; | |
| 1074 } | |
| 1075 }; | |
| 1076 } | |
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1077 public override Boolean RemoveControl(IFBGControl control) { |
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1078 if (!windowcontainer.RemoveControl(control)) return false; |
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1079 FBGWindowState ws = windowstates[control]; |
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1080 menucontainer.RemoveControl(ws.MenuButton); |
| 23 | 1081 windowstates.Remove(control); |
| 1082 ScaleMenuButtons(); | |
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1083 return true; |
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1084 } |
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1085 public override void RemoveAllControls() { |
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1086 windowcontainer.RemoveAllControls(); |
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1087 menucontainer.RemoveAllControls(); |
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1088 windowstates.Clear(); |
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1089 ScaleMenuButtons(); |
| 23 | 1090 } |
| 1091 private void ScaleMenuButtons() { | |
| 1092 int bcount = windowstates.Count; | |
| 1093 int bwidth = 200; | |
| 1094 int twidth = bwidth * bcount; | |
| 1095 if (twidth > Bounds.Width) bwidth = menucontainer.Bounds.Width / bcount; | |
| 1096 int i = 0; | |
| 1097 foreach (FBGWindowState ws in windowstates.Values) { | |
| 1098 ws.MenuButton.Bounds = new Rectangle(i * bwidth, 0, bwidth, 25); | |
| 1099 i++; | |
| 1100 } | |
| 1101 } | |
| 1102 protected override void Paint(Graphics g) { | |
| 1103 base.Paint(g); | |
| 1104 g.DrawLine(Pens.Black, 0, Bounds.Height - 25, Bounds.Width, Bounds.Height - 25); | |
| 1105 } | |
| 1106 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 1107 IFBGControl control = FindControlAtPosition(position); | |
| 1108 if (ReferenceEquals(control, windowcontainer)) { | |
| 1109 control = windowcontainer.FindControlAtPosition(PointToChild(windowcontainer, position)); | |
| 1110 if (!ReferenceEquals(control, null)) { | |
| 1111 windowcontainer.BringControlToFront(control); | |
| 1112 foreach (FBGWindowState ws in windowstates.Values) | |
| 1113 ws.MenuButton.BackColor = ReferenceEquals(ws.Control, control) ? Color.DarkGray : SystemColors.ButtonFace; | |
| 1114 } | |
| 1115 } | |
| 1116 base.MouseDown(position, buttons); | |
| 1117 } | |
| 1118 } | |
| 1119 | |
| 1120 public class FBGLabel : FBGControl, IDisposable { | |
| 1121 public FBGLabel(IFBGContainerControl parent) : base(parent) { | |
| 1122 Size = new Size(200, 16); | |
| 1123 } | |
| 1124 private String text = String.Empty; | |
| 1125 private Font font = SystemFonts.DefaultFont; | |
| 1126 private Brush brush = SystemBrushes.ControlText; | |
| 1127 private StringFormat stringformat = new StringFormat(); | |
| 1128 public String Text { get { return text; } set { text = value; Invalidate(); } } | |
| 1129 public Font Font { get { return font; } set { font = value; Invalidate(); } } | |
| 1130 public Brush Brush { get { return brush; } set { brush = value; Invalidate(); } } | |
| 1131 public Color Color { set { Brush = new SolidBrush(value); } } | |
| 1132 public StringAlignment Alignment { get { return stringformat.Alignment; } set { stringformat.Alignment = value; Invalidate(); } } | |
| 1133 public StringFormatFlags FormatFlags { get { return stringformat.FormatFlags; } set { stringformat.FormatFlags = value; Invalidate(); } } | |
| 1134 public StringAlignment LineAlignment { get { return stringformat.LineAlignment; } set { stringformat.LineAlignment = value; Invalidate(); } } | |
| 1135 public StringTrimming Trimming { get { return stringformat.Trimming; } set { stringformat.Trimming = value; Invalidate(); } } | |
| 1136 protected override void Paint(Graphics g) { | |
| 1137 base.Paint(g); | |
| 1138 g.DrawString(text, font, brush, new Rectangle(Point.Empty, Bounds.Size), stringformat); | |
| 1139 } | |
| 1140 public void Dispose() { | |
| 1141 stringformat.Dispose(); | |
| 1142 } | |
| 1143 protected override void Orphaned() { | |
| 1144 base.Orphaned(); | |
| 1145 Dispose(); | |
| 1146 } | |
| 1147 } | |
| 1148 public class FBGTextBox : FBGControl { | |
| 1149 public FBGTextBox(IFBGContainerControl parent) : base(parent) { | |
| 1150 BackColor = Color.White; | |
| 1151 Size = new Size(200, 20); | |
| 1152 } | |
| 1153 private String text = String.Empty; | |
| 1154 private Char passwordChar = (Char)0; | |
| 1155 private Font font = new Font(FontFamily.GenericMonospace, 10); | |
| 1156 private Brush brush = SystemBrushes.ControlText; | |
| 1157 private Boolean hasKeyboardFocus = false; | |
| 1158 public String Text { get { return text; } set { text = value; if (CaretPosition > text.Length) CaretPosition = text.Length; Invalidate(); RaiseEvent(TextChanged); } } | |
| 1159 public Font Font { get { return font; } set { font = value; Invalidate(); } } | |
| 1160 public Brush Brush { get { return brush; } set { brush = value; Invalidate(); } } | |
| 1161 public Color Color { set { Brush = new SolidBrush(value); } } | |
| 1162 public Int32 CaretPosition { get; private set; } | |
| 1163 public Char PasswordChar { get { return passwordChar; } set { passwordChar = value; Invalidate(); } } | |
| 1164 public event EventHandler TextChanged; | |
| 1165 public event KeyPressEventHandler OnKeyPress; | |
| 1166 protected override void Paint(Graphics g) { | |
| 1167 base.Paint(g); | |
| 1168 g.DrawRectangle(Pens.Gray, 0, 0, Bounds.Width - 1, Bounds.Height - 1); | |
| 1169 using (StringFormat sf_nonprinting = new StringFormat(StringFormat.GenericTypographic)) { | |
| 1170 sf_nonprinting.Trimming = StringTrimming.None; | |
| 1171 sf_nonprinting.FormatFlags = StringFormatFlags.DisplayFormatControl | StringFormatFlags.MeasureTrailingSpaces; | |
| 1172 sf_nonprinting.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.None; | |
| 1173 | |
| 1174 float x = 1; | |
| 1175 float y = 1; | |
| 1176 float w = Width - 2; | |
| 1177 if (hasKeyboardFocus && CaretPosition == 0) { | |
| 1178 g.DrawLine(Pens.Black, x + 2, 2, x + 2, Height - 4); | |
| 1179 } | |
| 1180 String c = passwordChar == 0 ? null : new String(passwordChar, 1); | |
| 1181 for (int i = 0; i < text.Length; i++) { | |
| 1182 if (passwordChar == 0) c = text.Substring(i, 1); | |
| 1183 SizeF s = g.MeasureString(c, font, (int)Math.Ceiling(w), sf_nonprinting); | |
| 1184 g.DrawString(c, font, brush, x, y); | |
| 1185 x += (float)Math.Ceiling(s.Width); | |
| 1186 w -= (float)Math.Ceiling(s.Width); | |
| 1187 | |
| 1188 if (hasKeyboardFocus && i == CaretPosition - 1) { | |
| 1189 g.DrawLine(Pens.Black, x + 2, 2, x + 2, Height - 4); | |
| 1190 } | |
| 1191 } | |
| 1192 } | |
| 1193 } | |
| 1194 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 1195 hasKeyboardFocus = CaptureKeyboard(true); | |
| 1196 CaretPosition = text.Length; | |
| 1197 float x = 1; | |
| 1198 String c = passwordChar == 0 ? null : new String(passwordChar, 1); | |
| 1199 for (int i = 0; i < text.Length; i++) { | |
| 1200 if (passwordChar == 0) c = text.Substring(i, 1); | |
| 1201 Size s; | |
| 1202 try { | |
| 1203 s = TextRenderer.MeasureText(c, font, Size.Empty, TextFormatFlags.NoPadding | TextFormatFlags.NoPrefix); | |
| 1204 } catch (Exception) { | |
| 1205 break; | |
| 1206 } | |
| 1207 x += s.Width; | |
| 1208 if (position.X < x) { | |
| 1209 CaretPosition = i; | |
| 1210 break; | |
| 1211 } | |
| 1212 } | |
| 1213 Invalidate(); | |
| 1214 } | |
| 1215 protected override void KeyDown(Keys key) { | |
| 1216 if ((key & Keys.KeyCode) == Keys.Left) { | |
| 1217 CaretPosition--; | |
| 1218 if (CaretPosition < 0) CaretPosition = 0; | |
| 1219 Invalidate(); | |
| 1220 } else if ((key & Keys.KeyCode) == Keys.Right) { | |
| 1221 CaretPosition++; | |
| 1222 if (CaretPosition > text.Length) CaretPosition = text.Length; | |
| 1223 Invalidate(); | |
| 1224 } else if ((key & Keys.KeyCode) == Keys.Home) { | |
| 1225 CaretPosition = 0; | |
| 1226 Invalidate(); | |
| 1227 } else if ((key & Keys.KeyCode) == Keys.End) { | |
| 1228 CaretPosition = text.Length; | |
| 1229 Invalidate(); | |
| 1230 } else if ((key & Keys.Control) != 0 && (key & Keys.KeyCode) == Keys.V) { | |
| 1231 String cbtext = Clipboard.GetText(TextDataFormat.UnicodeText); | |
| 1232 CaretPosition += cbtext.Length; | |
| 1233 Text = Text.Insert(CaretPosition - cbtext.Length, cbtext); | |
| 1234 } | |
| 1235 } | |
| 1236 protected override void KeyPress(char keyChar) { | |
| 1237 KeyPressEventArgs e = new KeyPressEventArgs(keyChar); | |
| 1238 RaiseEvent(OnKeyPress, e); | |
| 1239 if (e.Handled) return; | |
| 1240 hasKeyboardFocus = true; | |
| 1241 if (keyChar == 8) { | |
| 1242 if (CaretPosition > 0) { | |
| 1243 CaretPosition--; | |
| 1244 Text = Text.Remove(CaretPosition, 1); | |
| 1245 } | |
| 1246 } else if (keyChar == 127) { | |
| 1247 if (CaretPosition < Text.Length) { | |
| 1248 Text = Text.Remove(CaretPosition, 1); | |
| 1249 } | |
| 1250 } else if (keyChar < 32) { | |
| 1251 } else { | |
| 1252 CaretPosition++; | |
| 1253 Text = Text.Insert(CaretPosition - 1, new String(keyChar, 1)); | |
| 1254 } | |
| 1255 } | |
| 1256 public void Focus() { | |
| 1257 hasKeyboardFocus = CaptureKeyboard(true); | |
| 1258 } | |
| 1259 protected override void LostKeyboardCapture() { | |
| 1260 base.LostKeyboardCapture(); | |
| 1261 hasKeyboardFocus = false; | |
| 1262 Invalidate(); | |
| 1263 } | |
| 1264 } | |
| 1265 public class FBGButton : FBGControl { | |
| 1266 public FBGButton(IFBGContainerControl parent) : base(parent) { | |
| 1267 BackColor = SystemColors.ButtonFace; | |
| 1268 } | |
| 1269 private String text = String.Empty; | |
| 1270 private Font font = SystemFonts.DefaultFont; | |
| 1271 private Color color = SystemColors.ControlText; | |
| 1272 private Boolean pressed = false; | |
| 1273 private Boolean enabled = true; | |
| 1274 public String Text { get { return text; } set { text = value; Invalidate(); } } | |
| 1275 public Font Font { get { return font; } set { font = value; Invalidate(); } } | |
| 1276 public Color Color { get { return color; } set { color = value; Invalidate(); } } | |
| 1277 public Boolean Enabled { get { return enabled; } set { enabled = value; Invalidate(); } } | |
| 1278 public event EventHandler Click; | |
| 1279 protected override void Paint(Graphics g) { | |
| 1280 base.Paint(g); | |
| 1281 if (Bounds.Width == 0 || Bounds.Height == 0) return; | |
| 1282 if (BackColor == SystemColors.ButtonFace) { | |
| 1283 ControlPaint.DrawButton(g, new Rectangle(0, 0, Bounds.Width, Bounds.Height), enabled ? (pressed ? ButtonState.Pushed : ButtonState.Normal) : ButtonState.Inactive); | |
| 1284 } else { | |
| 1285 //Hackish and not completely right... | |
| 1286 //Todo: borrowed from mono... possible licencing issues!? | |
| 1287 g.DrawLine(new Pen(ControlPaint.LightLight(BackColor)), 0, 0, Bounds.Width, 0); | |
| 1288 g.DrawLine(new Pen(ControlPaint.LightLight(BackColor)), 0, 0, 0, Bounds.Height); | |
| 1289 g.DrawLine(new Pen(ControlPaint.Dark(BackColor)), 1, Bounds.Height - 2, Bounds.Width - 1, Bounds.Height - 2); | |
| 1290 g.DrawLine(new Pen(ControlPaint.Dark(BackColor)), Bounds.Width - 2, 1, Bounds.Width - 2, Bounds.Height - 2); | |
| 1291 g.DrawLine(new Pen(ControlPaint.DarkDark(BackColor)), 0, Bounds.Height - 1, Bounds.Width, Bounds.Height - 1); | |
| 1292 g.DrawLine(new Pen(ControlPaint.DarkDark(BackColor)), Bounds.Width - 1, 1, Bounds.Width - 1, Bounds.Height - 1); | |
| 1293 Graphics dc = g; | |
| 1294 Rectangle rectangle = new Rectangle(0, 0, Bounds.Width - 1, Bounds.Height - 1); | |
| 1295 Color ColorControl = BackColor; | |
| 1296 Color ColorControlLight = ControlPaint.Light(ColorControl); | |
| 1297 ButtonState state = pressed ? ButtonState.Pushed : ButtonState.Normal; | |
| 1298 using (Pen NormalPen = new Pen(BackColor), LightPen = new Pen(ControlPaint.Light(BackColor)), DarkPen = new Pen(ControlPaint.Dark(BackColor))) { | |
| 1299 // sadly enough, the rectangle gets always filled with a hatchbrush | |
| 1300 using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, Color.FromArgb(Math.Min(255, ColorControl.R + 3), ColorControl.G, ColorControl.B), ColorControl)) { | |
| 1301 dc.FillRectangle(hb, rectangle.X + 1, rectangle.Y + 1, rectangle.Width - 2, rectangle.Height - 2); | |
| 1302 } | |
| 1303 if ((state & ButtonState.All) == ButtonState.All || ((state & ButtonState.Checked) == ButtonState.Checked && (state & ButtonState.Flat) == ButtonState.Flat)) { | |
| 1304 using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, ColorControlLight, ColorControl)) { | |
| 1305 dc.FillRectangle(hb, rectangle.X + 2, rectangle.Y + 2, rectangle.Width - 4, rectangle.Height - 4); | |
| 1306 } | |
| 1307 dc.DrawRectangle(SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.Width - 1, rectangle.Height - 1); | |
| 1308 } else if ((state & ButtonState.Flat) == ButtonState.Flat) { | |
| 1309 dc.DrawRectangle(SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.Width - 1, rectangle.Height - 1); | |
| 1310 } else if ((state & ButtonState.Checked) == ButtonState.Checked) { | |
| 1311 using (HatchBrush hb = new HatchBrush(HatchStyle.Percent50, ColorControlLight, ColorControl)) { | |
| 1312 dc.FillRectangle(hb, rectangle.X + 2, rectangle.Y + 2, rectangle.Width - 4, rectangle.Height - 4); | |
| 1313 } | |
| 1314 Pen pen = DarkPen; | |
| 1315 dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2); | |
| 1316 dc.DrawLine(pen, rectangle.X + 1, rectangle.Y, rectangle.Right - 2, rectangle.Y); | |
| 1317 | |
| 1318 pen = NormalPen; | |
| 1319 dc.DrawLine(pen, rectangle.X + 1, rectangle.Y + 1, rectangle.X + 1, rectangle.Bottom - 3); | |
| 1320 dc.DrawLine(pen, rectangle.X + 2, rectangle.Y + 1, rectangle.Right - 3, rectangle.Y + 1); | |
| 1321 | |
| 1322 pen = LightPen; | |
| 1323 dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 2, rectangle.Bottom - 1); | |
| 1324 dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 1); | |
| 1325 } else if (((state & ButtonState.Pushed) == ButtonState.Pushed) && ((state & ButtonState.Normal) == ButtonState.Normal)) { | |
| 1326 Pen pen = DarkPen; | |
| 1327 dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2); | |
| 1328 dc.DrawLine(pen, rectangle.X + 1, rectangle.Y, rectangle.Right - 2, rectangle.Y); | |
| 1329 | |
| 1330 pen = NormalPen; | |
| 1331 dc.DrawLine(pen, rectangle.X + 1, rectangle.Y + 1, rectangle.X + 1, rectangle.Bottom - 3); | |
| 1332 dc.DrawLine(pen, rectangle.X + 2, rectangle.Y + 1, rectangle.Right - 3, rectangle.Y + 1); | |
| 1333 | |
| 1334 pen = LightPen; | |
| 1335 dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 2, rectangle.Bottom - 1); | |
| 1336 dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 1); | |
| 1337 } else if (((state & ButtonState.Inactive) == ButtonState.Inactive) || ((state & ButtonState.Normal) == ButtonState.Normal)) { | |
| 1338 Pen pen = LightPen; | |
| 1339 dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.Right - 2, rectangle.Y); | |
| 1340 dc.DrawLine(pen, rectangle.X, rectangle.Y, rectangle.X, rectangle.Bottom - 2); | |
| 1341 | |
| 1342 pen = NormalPen; | |
| 1343 dc.DrawLine(pen, rectangle.X + 1, rectangle.Bottom - 2, rectangle.Right - 2, rectangle.Bottom - 2); | |
| 1344 dc.DrawLine(pen, rectangle.Right - 2, rectangle.Y + 1, rectangle.Right - 2, rectangle.Bottom - 3); | |
| 1345 | |
| 1346 pen = DarkPen; | |
| 1347 dc.DrawLine(pen, rectangle.X, rectangle.Bottom - 1, rectangle.Right - 1, rectangle.Bottom - 1); | |
| 1348 dc.DrawLine(pen, rectangle.Right - 1, rectangle.Y, rectangle.Right - 1, rectangle.Bottom - 2); | |
| 1349 } | |
| 1350 } | |
| 1351 } | |
| 1352 Rectangle frect = new Rectangle(Point.Empty, Bounds.Size); | |
| 1353 SizeF textsize = g.MeasureString(Text, Font); | |
| 1354 using (Brush b = new SolidBrush(enabled ? Color : Color.DarkGray)) { | |
| 1355 g.DrawString(Text, Font, b, new PointF(Bounds.Width / 2.0f - textsize.Width / 2.0f, Bounds.Height / 2.0f - textsize.Height / 2.0f)); | |
| 1356 } | |
| 1357 } | |
| 1358 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 1359 pressed = true; | |
| 1360 Invalidate(); | |
| 1361 CaptureMouse(true); | |
| 1362 base.MouseDown(position, buttons); | |
| 1363 } | |
| 1364 protected override void MouseUp(Point position, MouseButtons buttons) { | |
| 1365 pressed = false; | |
| 1366 Invalidate(); | |
| 1367 CaptureMouse(false); | |
| 1368 if (position.X >= 0 && position.X <= Bounds.Width && position.Y >= 0 && position.Y <= Bounds.Height && enabled) RaiseEvent(Click); | |
| 1369 base.MouseUp(position, buttons); | |
| 1370 } | |
| 1371 protected override void KeyDown(Keys key) { | |
| 1372 if (key == Keys.Return || key == Keys.Space) { | |
| 1373 pressed = true; | |
| 1374 Invalidate(); | |
| 1375 } | |
| 1376 base.KeyDown(key); | |
| 1377 } | |
| 1378 protected override void KeyUp(Keys key) { | |
| 1379 if (key == Keys.Return || key == Keys.Space) { | |
| 1380 if (pressed) RaiseEvent(Click); | |
| 1381 pressed = false; | |
| 1382 Invalidate(); | |
| 1383 } | |
| 1384 base.KeyUp(key); | |
| 1385 } | |
| 1386 public void Focus() { | |
| 1387 CaptureKeyboard(true); | |
| 1388 } | |
| 1389 } | |
| 1390 public class FBGCheckBox : FBGControl { | |
| 1391 public FBGCheckBox(IFBGContainerControl parent) : base(parent) { } | |
| 1392 private String text = String.Empty; | |
| 1393 private Font font = SystemFonts.DefaultFont; | |
| 1394 private Color color = SystemColors.ControlText; | |
| 1395 private Boolean _checked = false; | |
| 1396 public String Text { get { return text; } set { text = value; Invalidate(); } } | |
| 1397 public Font Font { get { return font; } set { font = value; Invalidate(); } } | |
| 1398 public Color Color { get { return color; } set { color = value; Invalidate(); } } | |
| 1399 public Boolean Checked { get { return _checked; } set { _checked = value; Invalidate(); } } | |
| 1400 public event EventHandler CheckedChanged; | |
| 1401 protected override void Paint(Graphics g) { | |
| 1402 base.Paint(g); | |
| 1403 ControlPaint.DrawCheckBox(g, 0, 0, 13, 13, _checked ? ButtonState.Checked : ButtonState.Normal); | |
| 1404 g.DrawString(Text, Font, new SolidBrush(Color), 15, 0); | |
| 1405 } | |
| 1406 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 1407 Checked = !Checked; | |
| 1408 RaiseEvent(CheckedChanged); | |
| 1409 base.MouseDown(position, buttons); | |
| 1410 } | |
| 1411 } | |
| 1412 public class FBGImageBox : FBGControl { | |
| 1413 Image image = null; | |
| 33 | 1414 Image scaledImage = null; |
| 1415 Size imageSize; | |
| 1416 Boolean ownsImage = false; | |
|
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1417 Boolean shouldScaleImage = false; |
| 23 | 1418 PictureBoxSizeMode sizeMode = PictureBoxSizeMode.Normal; |
| 1419 Rectangle imageRect; | |
| 33 | 1420 public Image Image { get { return image; } set { SetImage(value, false); } } |
| 1421 public Boolean PreScaleImage { get; set; } | |
| 1422 public void SetOwnedImage(Image img) { SetImage(img, true); } | |
| 1423 private void SetImage(Image img, Boolean owned) { | |
| 1424 image = img; | |
| 1425 imageSize = img == null ? Size.Empty : img.Size; | |
| 1426 ownsImage = owned; | |
| 1427 UpdateImageRect(Size.Empty); | |
| 1428 } | |
| 23 | 1429 public FBGImageBox(IFBGContainerControl parent) : base(parent) { } |
|
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1430 public PictureBoxSizeMode SizeMode { get { return sizeMode; } set { sizeMode = value; UpdateImageRect(Size.Empty); } } |
| 23 | 1431 public override Rectangle Bounds { |
| 1432 get { | |
| 1433 return base.Bounds; | |
| 1434 } | |
| 1435 set { | |
| 33 | 1436 if (Bounds.Size != value.Size) UpdateImageRect(value.Size); |
| 23 | 1437 base.Bounds = value; |
| 1438 } | |
| 1439 } | |
|
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1440 private void UpdateImageRect(Size csize) { |
|
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1441 shouldScaleImage = false; |
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1442 if (scaledImage != null) scaledImage.Dispose(); |
| 33 | 1443 scaledImage = null; |
| 23 | 1444 if (image == null) return; |
|
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1445 Boolean boundsset = !csize.IsEmpty; |
| 23 | 1446 if (!boundsset && sizeMode == PictureBoxSizeMode.AutoSize) { |
| 33 | 1447 Size = imageSize; |
| 23 | 1448 return; |
| 1449 } | |
|
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1450 if (!boundsset) csize = Bounds.Size; |
| 23 | 1451 switch (sizeMode) { |
| 1452 case PictureBoxSizeMode.AutoSize: | |
| 1453 case PictureBoxSizeMode.Normal: | |
| 33 | 1454 imageRect = new Rectangle(Point.Empty, imageSize); |
| 23 | 1455 break; |
| 1456 case PictureBoxSizeMode.CenterImage: | |
| 33 | 1457 imageRect = new Rectangle(csize.Width / 2 - imageSize.Width / 2, csize.Height / 2 - imageSize.Height / 2, imageSize.Width, imageSize.Height); |
| 23 | 1458 break; |
| 1459 case PictureBoxSizeMode.StretchImage: | |
|
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1460 imageRect = new Rectangle(Point.Empty, csize); |
| 23 | 1461 break; |
| 1462 case PictureBoxSizeMode.Zoom: | |
| 33 | 1463 float xrat = (float)csize.Width / (float)imageSize.Width; |
| 1464 float yrat = (float)csize.Height / (float)imageSize.Height; | |
| 23 | 1465 float rat = Math.Min(xrat, yrat); |
| 33 | 1466 SizeF dispsize = new SizeF(imageSize.Width * rat, imageSize.Height * rat); |
|
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1467 imageRect = Rectangle.Round(new RectangleF(csize.Width / 2f - dispsize.Width / 2f, csize.Height / 2f - dispsize.Height / 2f, dispsize.Width, dispsize.Height)); |
| 23 | 1468 break; |
| 1469 } | |
|
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1470 shouldScaleImage = imageRect.Size != imageSize; |
| 23 | 1471 if (!boundsset) Invalidate(); |
| 1472 } | |
| 1473 protected override void Paint(Graphics g) { | |
| 1474 if (!Visible) return; | |
| 1475 base.Paint(g); | |
|
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1476 if (shouldScaleImage && PreScaleImage && image != null) { |
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1477 scaledImage = new Bitmap(image, imageRect.Size); |
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1478 shouldScaleImage = false; |
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1479 } |
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1480 if (scaledImage != null) g.DrawImage(scaledImage, imageRect); |
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1481 else if (image != null) g.DrawImage(image, imageRect); |
| 23 | 1482 } |
|
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1483 public Point PointToImage(Point point) { |
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1484 switch (sizeMode) { |
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1485 case PictureBoxSizeMode.AutoSize: |
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1486 case PictureBoxSizeMode.Normal: |
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1487 break; |
|
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1488 case PictureBoxSizeMode.CenterImage: |
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1489 point.X -= imageRect.X; |
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1490 point.Y -= imageRect.Y; |
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1491 break; |
|
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1492 case PictureBoxSizeMode.StretchImage: |
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1493 case PictureBoxSizeMode.Zoom: |
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1494 default: |
| 33 | 1495 point.X = (point.X - imageRect.X) * imageSize.Width / imageRect.Width; |
| 1496 point.Y = (point.Y - imageRect.Y) * imageSize.Height / imageRect.Height; | |
|
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1497 break; |
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1498 } |
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1499 return point; |
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1500 } |
| 33 | 1501 protected override void Orphaned() { |
| 1502 base.Orphaned(); | |
| 1503 if (scaledImage != null && scaledImage != image) scaledImage.Dispose(); | |
| 1504 scaledImage = null; | |
| 1505 if (ownsImage) { | |
| 1506 image.Dispose(); | |
| 1507 image = null; | |
| 1508 } | |
| 1509 } | |
| 23 | 1510 } |
| 1511 public class FBGListBox : FBGControl { | |
| 1512 private List<Object> items = new List<object>(); | |
| 1513 private Object selected = null; | |
| 1514 private Object highlighted = null; | |
| 1515 private Boolean hasScrollBar = false; | |
| 1516 private Boolean hitScrollBar = false; | |
| 1517 private int offset = 0; | |
| 1518 private ButtonState buttonUpState = ButtonState.Normal; | |
| 1519 private ButtonState buttonDownState = ButtonState.Normal; | |
| 1520 private Converter<Object, String> itemFormatter = null; | |
| 1521 public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } } | |
| 1522 public FBGListBox(IFBGContainerControl parent) | |
| 1523 : base(parent) { | |
| 1524 BackColor = Color.White; | |
| 1525 } | |
| 78 | 1526 public int AddItem(Object item) { |
| 1527 int id = ((System.Collections.IList)items).Add(item); | |
| 1528 Invalidate(); | |
| 1529 return id; | |
| 1530 } | |
| 1531 public void RemoveItem(Object item) { | |
| 1532 items.Remove(item); | |
| 1533 if (offset >= items.Count) offset = Math.Max(0, items.Count - 1); | |
| 23 | 1534 Invalidate(); |
| 1535 } | |
| 78 | 1536 public void RemoveItemAt(int index) { |
| 1537 if (index < 0) index += items.Count; | |
| 1538 items.RemoveAt(index); | |
| 1539 if (offset >= index && offset > 0) offset--; | |
| 1540 Invalidate(); | |
| 1541 } | |
| 1542 public void Clear() { | |
| 1543 items.Clear(); | |
| 1544 offset = 0; | |
| 1545 Invalidate(); | |
| 1546 } | |
| 1547 public System.Collections.IList Items { get { return items.AsReadOnly(); } } | |
| 23 | 1548 protected override void Paint(Graphics g) { |
| 1549 base.Paint(g); | |
| 1550 g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1); | |
| 1551 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight()); | |
| 1552 int y = 2; | |
| 1553 using (Pen dottedpen = new Pen(Brushes.Black)) { | |
| 1554 dottedpen.DashStyle = DashStyle.Dot; | |
| 1555 using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) { | |
| 1556 for (int i = offset; i < items.Count; i++) { | |
| 1557 Object item = items[i]; | |
| 1558 String text = itemFormatter == null ? (item == null ? String.Empty : item.ToString()) : itemFormatter(item); | |
| 1559 if (item == selected) g.FillRectangle(Brushes.DarkGray, 2, y, Bounds.Width - 4, lh); | |
| 1560 if (item == highlighted) g.DrawRectangle(dottedpen, 2, y, Bounds.Width - 5, lh - 1); | |
| 1561 g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(3, y, Bounds.Width - 6, lh), sf); | |
| 1562 y += lh; | |
| 1563 if (y + lh + 2 >= Bounds.Height) break; | |
| 1564 } | |
| 1565 } | |
| 1566 } | |
| 78 | 1567 hasScrollBar = (y < 2 + lh * items.Count) || (offset != 0); |
| 23 | 1568 if (hasScrollBar) { |
| 1569 int xoff = Bounds.Width - 17; | |
| 1570 using (Brush b = new LinearGradientBrush(new Rectangle(xoff, 0, 17, 1), Color.LightGray, Color.White, LinearGradientMode.Horizontal)) | |
| 1571 g.FillRectangle(b, xoff, 17, 16, Bounds.Height - 17 - 17); | |
| 1572 ControlPaint.DrawScrollButton(g, xoff, 1, 16, 16, ScrollButton.Up, buttonUpState); | |
| 1573 ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - 17, 16, 16, ScrollButton.Down, buttonDownState); | |
| 78 | 1574 if (items.Count > 1) g.DrawRectangle(Pens.Black, new Rectangle(xoff, 17 + offset * (Bounds.Height - 17 - 17 - 20) / (items.Count - 1), 15, 20)); |
| 23 | 1575 } |
| 1576 } | |
| 1577 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 1578 if ((buttons & MouseButtons.Left) != 0) { | |
| 1579 CaptureMouse(true); | |
| 1580 if (hasScrollBar && position.X > Bounds.Width - 17) { | |
| 1581 hitScrollBar = true; | |
| 78 | 1582 int off = offset; |
| 23 | 1583 if (position.Y < 17) { |
| 78 | 1584 off--; |
| 23 | 1585 buttonUpState = ButtonState.Pushed; |
| 1586 } else if (position.Y > Bounds.Height - 17) { | |
| 78 | 1587 off++; |
| 23 | 1588 buttonDownState = ButtonState.Pushed; |
| 1589 } else { | |
| 78 | 1590 off = (int)Math.Round((position.Y - 17) * (items.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10)); |
| 23 | 1591 } |
| 78 | 1592 offset = Math.Max(0, Math.Min(items.Count - 1, off)); |
| 23 | 1593 Invalidate(); |
| 1594 } else { | |
| 1595 MouseHandler(position, buttons); | |
| 1596 } | |
| 1597 } | |
| 1598 } | |
| 1599 protected override void MouseMove(Point position, MouseButtons buttons) { | |
| 1600 if (hitScrollBar) { | |
| 1601 if (position.Y < 17) { | |
| 1602 } else if (position.Y > Bounds.Height - 17) { | |
| 1603 } else { | |
| 78 | 1604 offset = Math.Max(0, Math.Min(items.Count - 1, (int)Math.Round((position.Y - 17) * (items.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10)))); |
| 23 | 1605 Invalidate(); |
| 1606 } | |
| 1607 return; | |
| 1608 } | |
| 1609 MouseHandler(position, buttons); | |
| 1610 } | |
| 1611 protected override void MouseUp(Point position, MouseButtons buttons) { | |
| 1612 if ((buttons & MouseButtons.Left) != 0) { | |
| 1613 CaptureMouse(false); | |
| 1614 buttonUpState = buttonDownState = ButtonState.Normal; | |
| 1615 Invalidate(); | |
| 1616 if (hitScrollBar) { | |
| 1617 hitScrollBar = false; | |
| 1618 return; | |
| 1619 } | |
| 1620 } | |
| 1621 if (hitScrollBar) return; | |
| 1622 MouseHandler(position, buttons); | |
| 1623 } | |
| 1624 private void MouseHandler(Point position, MouseButtons buttons) { | |
| 1625 if ((buttons & MouseButtons.Left) != 0) { | |
| 1626 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight()); | |
| 1627 int i = (position.Y - 2) / lh + offset; | |
| 1628 if (i < 0) i = 0; | |
| 1629 if (i >= items.Count) i = items.Count - 1; | |
| 1630 Boolean changed = false; | |
| 1631 Object current = items[i]; | |
| 1632 if (!ReferenceEquals(highlighted, current)) changed = true; | |
| 1633 highlighted = current; | |
| 1634 if ((new Rectangle(Point.Empty, Bounds.Size)).Contains(position)) { | |
| 1635 if (!ReferenceEquals(selected, current)) changed = true; | |
| 1636 selected = current; | |
| 1637 } | |
| 1638 if (changed) Invalidate(); | |
| 1639 } | |
| 1640 } | |
| 1641 } | |
|
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1642 public abstract class FBGUpDownControlBase : FBGControl { |
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1643 private ButtonState buttonUpState = ButtonState.Normal; |
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1644 private ButtonState buttonDownState = ButtonState.Normal; |
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1645 public FBGUpDownControlBase(IFBGContainerControl parent) : base(parent) { |
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1646 BackColor = Color.White; |
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1647 Height = 25; |
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1648 } |
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1649 protected override void Paint(Graphics g) { |
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1650 base.Paint(g); |
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1651 g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1); |
|
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1652 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight()); |
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1653 String text = SelectedText; |
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1654 if (text == null) { |
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1655 g.FillRectangle(Brushes.DarkGray, 2, 2, Bounds.Width - 4 - 16, Bounds.Height - 4); |
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1656 } else { |
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1657 using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) { |
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1658 sf.LineAlignment = StringAlignment.Center; |
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1659 g.FillRectangle(Brushes.LightGray, 2, 2, Bounds.Width - 4 - 16, Bounds.Height - 4); |
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1660 g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(3, 2, Bounds.Width - 6 - 16, Bounds.Height - 4), sf); |
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1661 } |
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1662 } |
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1663 int xoff = Bounds.Width - 17; |
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1664 int he = (Bounds.Height - 2) / 2; |
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1665 ControlPaint.DrawScrollButton(g, xoff, 1, 16, he, ScrollButton.Up, buttonUpState); |
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1666 ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - he - 1, 16, he, ScrollButton.Down, buttonDownState); |
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1667 } |
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1668 protected abstract String SelectedText { get; } |
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1669 protected override void MouseDown(Point position, MouseButtons buttons) { |
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1670 CaptureKeyboard(true); |
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1671 if ((buttons & MouseButtons.Left) != 0) { |
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1672 CaptureMouse(true); |
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1673 if (position.X > Bounds.Width - 17) { |
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1674 if (position.Y < Bounds.Height / 2) { |
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1675 buttonUpState = ButtonState.Pushed; |
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1676 ButtonPressUp(); |
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1677 } else { |
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1678 buttonDownState = ButtonState.Pushed; |
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1679 ButtonPressDown(); |
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1680 } |
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1681 Invalidate(new Rectangle(Bounds.Width - 16, 0, 16, Bounds.Height)); |
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1682 } |
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1683 } |
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1684 } |
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1685 protected override void MouseUp(Point position, MouseButtons buttons) { |
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1686 if ((buttons & MouseButtons.Left) != 0) { |
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1687 CaptureMouse(false); |
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1688 buttonUpState = buttonDownState = ButtonState.Normal; |
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1689 Invalidate(new Rectangle(Bounds.Width - 16, 0, 16, Bounds.Height)); |
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1690 } |
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1691 } |
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1692 protected override void KeyDown(Keys key) { |
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1693 base.KeyDown(key); |
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1694 if (key == Keys.Down) ButtonPressDown(); |
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1695 else if (key == Keys.Up) ButtonPressUp(); |
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1696 } |
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1697 protected abstract void ButtonPressUp(); |
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1698 protected abstract void ButtonPressDown(); |
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1699 } |
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1700 public class FBGDomainUpDown : FBGUpDownControlBase { |
| 23 | 1701 private List<Object> items = new List<object>(); |
| 1702 private int selectedIndex = -1; | |
| 1703 private Converter<Object, String> itemFormatter = null; | |
| 1704 public Boolean AllowSelectEmpty { get; set; } | |
| 1705 public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } } | |
| 1706 public event EventHandler SelectedIndexChanged; | |
|
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1707 public FBGDomainUpDown(IFBGContainerControl parent) : base(parent) { } |
| 23 | 1708 public void AddItem(Object item) { |
| 1709 items.Add(item); | |
| 1710 Invalidate(); | |
| 1711 } | |
| 1712 public void RemoveItem(Object item) { | |
| 1713 items.Remove(item); | |
| 1714 FixSelectedIndex(0); | |
| 1715 } | |
| 1716 public void RemoveItem(int index) { | |
| 1717 items.RemoveAt(index); | |
| 1718 FixSelectedIndex(0); | |
| 1719 } | |
| 1720 public int SelectedIndex { | |
| 1721 get { return selectedIndex; } | |
| 1722 set { | |
| 1723 if (value < -2 || value >= items.Count) throw new ArgumentOutOfRangeException("value", "Value must be between -1 and the number of items minus one"); | |
| 1724 if (selectedIndex == value) return; | |
| 1725 selectedIndex = value; | |
| 1726 Invalidate(); | |
| 1727 RaiseEvent(SelectedIndexChanged); | |
| 1728 } | |
| 1729 } | |
| 1730 public Object SelectedItem { | |
| 1731 get { return selectedIndex == -1 ? null : items[selectedIndex]; } | |
| 1732 set { | |
| 1733 if (value == null) { | |
| 1734 SelectedIndex = -1; | |
| 1735 } else { | |
| 1736 for (int i = 0; i < items.Count; i++) { | |
| 1737 if (items[i] == value) { | |
| 1738 SelectedIndex = i; | |
| 1739 break; | |
| 1740 } | |
| 1741 } | |
| 1742 } | |
| 1743 } | |
| 1744 } | |
|
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1745 protected override string SelectedText { |
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1746 get { |
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1747 if (selectedIndex == -1) return null; |
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1748 Object item = items[selectedIndex]; |
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1749 if (itemFormatter != null) return itemFormatter(item); |
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1750 if (item == null) return null; |
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1751 return item.ToString(); |
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1752 } |
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1753 } |
| 23 | 1754 private void FixSelectedIndex(int change) { |
| 1755 int value = selectedIndex; | |
| 1756 if (value == 0 && change == -1 && !AllowSelectEmpty) change = 0; | |
| 1757 value += change; | |
| 1758 if (value < -1) value = -1; | |
| 1759 if (value >= items.Count) value = items.Count - 1; | |
| 1760 SelectedIndex = value; | |
| 1761 } | |
|
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1762 protected override void ButtonPressDown() { |
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1763 FixSelectedIndex(1); |
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1764 } |
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1765 protected override void ButtonPressUp() { |
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1766 FixSelectedIndex(-1); |
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1767 } |
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1768 } |
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1769 public class FBGNumericUpDown : FBGUpDownControlBase { |
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1770 private int minimum = 0; |
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1771 private int maximum = 0; |
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1772 private int value = 0; |
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1773 public event EventHandler SelectedValueChanged; |
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1774 public FBGNumericUpDown(IFBGContainerControl parent) : base(parent) { } |
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1775 public int Value { |
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1776 get { return value; } |
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1777 set { if (this.value == value) return; this.value = value; Invalidate(); RaiseEvent(SelectedValueChanged); } |
| 23 | 1778 } |
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1779 public int Minimum { |
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1780 get { return minimum; } |
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1781 set { minimum = value; if (this.value < minimum) this.Value = minimum; } |
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1782 } |
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1783 public int Maximum { |
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1784 get { return maximum; } |
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1785 set { maximum = value; if (this.value > maximum) this.Value = maximum; } |
| 23 | 1786 } |
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1787 public int Step { get; set; } |
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1788 protected override string SelectedText { |
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1789 get { return value.ToString(); } |
| 23 | 1790 } |
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1791 protected override void ButtonPressDown() { |
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1792 Value = Math.Max(minimum, value - Step); |
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1793 } |
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1794 protected override void ButtonPressUp() { |
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1795 Value = Math.Min(maximum, value + Step); |
| 23 | 1796 } |
| 1797 } | |
| 1798 public interface IFBGTreeParent { | |
| 1799 FBGTreeView TreeView { get; } | |
| 1800 int Depth { get; } | |
| 1801 void AddChild(FBGTreeNode node); | |
| 1802 void RemoveChild(FBGTreeNode node); | |
| 1803 } | |
| 1804 public class FBGTreeNode : IFBGTreeParent { | |
| 1805 private List<FBGTreeNode> children = new List<FBGTreeNode>(); | |
| 1806 private Boolean expanded = true; | |
| 1807 private Boolean hasCheckBox = false; | |
| 1808 private Boolean isChecked = false; | |
| 1809 private Object item; | |
| 1810 | |
| 1811 public FBGTreeView TreeView { get; private set; } | |
| 1812 public int Depth { get; private set; } | |
| 1813 public Object Tag { get; set; } | |
| 1814 public IFBGTreeParent Parent { get; private set; } | |
| 1815 | |
| 1816 public IList<FBGTreeNode> Children { get { return children.AsReadOnly(); } } | |
| 1817 | |
| 1818 public Object Item { | |
| 1819 get { return item; } | |
| 1820 set { | |
| 1821 item = value; | |
| 1822 Invalidate(); | |
| 1823 } | |
| 1824 } | |
| 1825 public Boolean Expanded { | |
| 1826 get { return expanded; } | |
| 1827 set { | |
| 1828 if (expanded == value) return; | |
| 1829 expanded = value; | |
| 1830 UpdateTree(); | |
| 1831 } | |
| 1832 } | |
| 1833 public Boolean HasCheckBox { | |
| 1834 get { return hasCheckBox; } | |
| 1835 set { | |
| 1836 if (hasCheckBox == value) return; | |
| 1837 hasCheckBox = value; | |
| 1838 Invalidate(); | |
| 1839 } | |
| 1840 } | |
| 1841 public Boolean Checked { | |
| 1842 get { return isChecked; } | |
| 1843 set { | |
| 1844 if (isChecked == value) return; | |
| 1845 isChecked = value; | |
| 1846 Invalidate(); | |
| 1847 if (TreeView != null) TreeView.RaiseNodeCheckedChanged(this); | |
| 1848 } | |
| 1849 } | |
| 1850 | |
| 1851 public FBGTreeNode(IFBGTreeParent parent, Object item) { | |
| 1852 this.TreeView = parent.TreeView; | |
| 1853 this.Depth = parent.Depth + 1; | |
| 1854 this.Parent = parent; | |
| 1855 this.item = item; | |
| 1856 parent.AddChild(this); | |
| 1857 } | |
| 1858 | |
| 1859 public void Remove() { | |
| 1860 Parent.RemoveChild(this); | |
| 1861 } | |
| 1862 void IFBGTreeParent.AddChild(FBGTreeNode node) { | |
| 1863 children.Add(node); | |
| 1864 if (Expanded) UpdateTree(); | |
| 1865 else Invalidate(); | |
| 1866 } | |
| 1867 void IFBGTreeParent.RemoveChild(FBGTreeNode node) { | |
| 1868 children.Remove(node); | |
| 1869 TreeView.ReleaseNodeFromTree(node); | |
| 1870 if (Expanded) UpdateTree(); | |
| 1871 else Invalidate(); | |
| 1872 } | |
| 1873 public void Invalidate() { | |
| 1874 if (TreeView != null) TreeView.Invalidate(this); | |
| 1875 } | |
| 1876 private void UpdateTree() { | |
| 1877 if (TreeView != null) TreeView.UpdateView(); | |
| 1878 } | |
| 1879 public FBGTreeNode AddNode(Object item) { | |
| 1880 return new FBGTreeNode(this, item); | |
| 1881 } | |
| 1882 } | |
| 1883 public class FBGTreeView : FBGControl, IFBGTreeParent { | |
| 1884 private List<FBGTreeNode> items = new List<FBGTreeNode>(); | |
| 1885 private List<FBGTreeNode> itemsView = new List<FBGTreeNode>(); | |
| 1886 private FBGTreeNode selected = null; | |
| 1887 private FBGTreeNode highlighted = null; | |
| 1888 private Boolean hasScrollBar = false; | |
| 1889 private Boolean hitScrollBar = false; | |
| 1890 private int offset = 0; | |
| 1891 private ButtonState buttonUpState = ButtonState.Normal; | |
| 1892 private ButtonState buttonDownState = ButtonState.Normal; | |
| 1893 private Converter<Object, String> itemFormatter = null; | |
| 1894 | |
| 1895 public Converter<Object, String> ItemFormatter { get { return itemFormatter; } set { itemFormatter = value; Invalidate(); } } | |
| 1896 public FBGTreeNode SelectedNode { get { return selected; } set { if (selected != value) { selected = value; Invalidate(); RaiseEvent(SelectedNodeChanged); } } } | |
| 1897 public IList<FBGTreeNode> Nodes { get { return items.AsReadOnly(); } } | |
| 1898 | |
| 1899 public event EventHandler SelectedNodeChanged; | |
| 1900 public event EventHandler NodeCheckedChanged; | |
| 1901 | |
| 1902 public FBGTreeView(IFBGContainerControl parent) : base(parent) { | |
| 1903 BackColor = Color.White; | |
| 1904 } | |
| 1905 FBGTreeView IFBGTreeParent.TreeView { get { return this; } } | |
| 1906 int IFBGTreeParent.Depth { get { return -1; } } | |
| 1907 void IFBGTreeParent.AddChild(FBGTreeNode node) { | |
| 1908 items.Add(node); | |
| 1909 UpdateView(); | |
| 1910 } | |
| 1911 void IFBGTreeParent.RemoveChild(FBGTreeNode node) { | |
| 1912 items.Remove(node); | |
| 1913 ReleaseNodeFromTree(node); | |
| 1914 UpdateView(); | |
| 1915 } | |
| 1916 public FBGTreeNode AddNode(Object item) { return new FBGTreeNode(this, item); } | |
| 1917 internal void ReleaseNodeFromTree(FBGTreeNode node) { | |
| 1918 if (highlighted == node) highlighted = null; | |
| 1919 if (selected == node) SelectedNode = null; | |
| 1920 } | |
| 1921 internal void RaiseNodeCheckedChanged(FBGTreeNode node) { | |
| 1922 RaiseEvent(NodeCheckedChanged); | |
| 1923 } | |
| 1924 internal void UpdateView() { | |
| 1925 List<FBGTreeNode> newView = new List<FBGTreeNode>(); | |
| 1926 Stack<Queue<FBGTreeNode>> stack = new Stack<Queue<FBGTreeNode>>(); | |
| 1927 stack.Push(new Queue<FBGTreeNode>(items)); | |
| 1928 while (stack.Count > 0) { | |
| 1929 Queue<FBGTreeNode> list = stack.Peek(); | |
| 1930 if (list.Count == 0) { | |
| 1931 stack.Pop(); | |
| 1932 continue; | |
| 1933 } | |
| 1934 FBGTreeNode item = list.Dequeue(); | |
| 1935 newView.Add(item); | |
| 1936 if (item.Expanded) stack.Push(new Queue<FBGTreeNode>(item.Children)); | |
| 1937 } | |
| 1938 itemsView = newView; | |
| 1939 Invalidate(); | |
| 1940 } | |
| 1941 internal void Invalidate(FBGTreeNode node) { | |
| 1942 int i = itemsView.IndexOf(node); | |
| 1943 if (i == -1) return; | |
| 1944 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2; | |
| 1945 Invalidate(new Rectangle(1, i * lh, Bounds.Width - 1, lh)); | |
| 1946 } | |
| 1947 protected override void Paint(Graphics g) { | |
| 1948 base.Paint(g); | |
| 1949 | |
| 1950 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2; | |
| 1951 int th = lh * itemsView.Count; | |
| 1952 hasScrollBar = offset > 0 || th + 2 > Bounds.Height; | |
| 1953 int y = 2; | |
| 1954 using (Pen dottedpen = new Pen(Brushes.Black)) { | |
| 1955 dottedpen.DashStyle = DashStyle.Dot; | |
| 1956 using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap)) { | |
| 1957 int lw = Bounds.Width - 2; | |
| 1958 if (hasScrollBar) lw -= 17; | |
| 1959 for (int i = offset; i < itemsView.Count; i++) { | |
| 1960 FBGTreeNode item = itemsView[i]; | |
| 1961 if (y + 2 < Bounds.Height) { | |
| 1962 Object obj = item.Item; | |
| 1963 String text = itemFormatter == null ? (obj == null ? String.Empty : obj.ToString()) : itemFormatter(obj); | |
| 1964 if (item == selected) g.FillRectangle(Brushes.DarkGray, 2, y, lw - 2, lh); | |
| 1965 if (item == highlighted) g.DrawRectangle(dottedpen, 2, y, lw - 3, lh - 1); | |
| 1966 int x = 3 + 19 * item.Depth + 14; | |
| 1967 if (item.HasCheckBox) { | |
| 1968 x += 2; | |
| 1969 ControlPaint.DrawCheckBox(g, x, y, lh, lh, item.Checked ? ButtonState.Checked : ButtonState.Normal); | |
| 1970 x += lh + 1; | |
| 1971 } | |
| 1972 g.DrawString(text, SystemFonts.DefaultFont, SystemBrushes.WindowText, new Rectangle(x, y, lw - x, lh), sf); | |
| 1973 } | |
| 1974 int upto = y + 2 + 4 - 8; | |
| 1975 for (int j = i - 1; j >= 0; j--) { | |
| 1976 if (itemsView[j].Depth < item.Depth) { | |
| 1977 break; | |
| 1978 } | |
| 1979 if (itemsView[j].Depth == item.Depth) { | |
| 1980 if (itemsView[j].Children.Count > 0) { | |
| 1981 upto = 2 + lh * (j - offset) + 10; | |
| 1982 } else { | |
| 1983 upto = 2 + lh * (j - offset) + 6; | |
| 1984 } | |
| 1985 break; | |
| 1986 } | |
| 1987 if (j <= offset) { | |
| 1988 upto = 2 + 2 + 4 - 8; | |
| 1989 break; | |
| 1990 } | |
| 1991 } | |
| 1992 if (item.Children.Count > 0) { | |
| 1993 g.DrawRectangle(Pens.Black, 3 + 19 * item.Depth, y + 2, 8, 8); | |
| 1994 g.DrawLine(Pens.Black, 3 + 19 * item.Depth + 2, y + 2 + 4, 3 + 19 * item.Depth + 6, y + 2 + 4); | |
| 1995 if (!item.Expanded) g.DrawLine(Pens.Black, 3 + 19 * item.Depth + 4, y + 4, 3 + 19 * item.Depth + 4, y + 2 + 6); | |
| 1996 | |
| 1997 g.DrawLine(dottedpen, 3 + 19 * item.Depth + 8, y + 2 + 4, 3 + 19 * item.Depth + 14, y + 2 + 4); | |
| 1998 g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4 - 6, 3 + 19 * item.Depth + 4, upto); | |
| 1999 } else { | |
| 2000 g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4, 3 + 19 * item.Depth + 14, y + 2 + 4); | |
| 2001 g.DrawLine(dottedpen, 3 + 19 * item.Depth + 4, y + 2 + 4 - 2, 3 + 19 * item.Depth + 4, upto); | |
| 2002 } | |
| 2003 y += lh; | |
| 2004 //if (y + lh + 2 >= Bounds.Height && item.Depth == 0) break; | |
| 2005 if (y + 2 >= Bounds.Height && item.Depth == 0) break; | |
| 2006 } | |
| 2007 } | |
| 2008 } | |
| 2009 //if (y < th) hasScrollBar = true; | |
| 2010 //hasScrollBar = true; | |
| 2011 if (hasScrollBar) { | |
| 2012 int xoff = Bounds.Width - 17; | |
| 2013 using (Brush b = new LinearGradientBrush(new Rectangle(xoff, 0, 17, 1), Color.LightGray, Color.White, LinearGradientMode.Horizontal)) | |
| 2014 g.FillRectangle(b, xoff, 17, 16, Bounds.Height - 17 - 17); | |
| 2015 ControlPaint.DrawScrollButton(g, xoff, 1, 16, 16, ScrollButton.Up, buttonUpState); | |
| 2016 ControlPaint.DrawScrollButton(g, xoff, Bounds.Height - 17, 16, 16, ScrollButton.Down, buttonDownState); | |
| 2017 g.DrawRectangle(Pens.Black, new Rectangle(xoff, 17 + offset * (Bounds.Height - 17 - 17 - 20) / (itemsView.Count - 1), 15, 20)); | |
| 2018 } | |
| 2019 | |
| 2020 g.DrawRectangle(Pens.DarkBlue, 0, 0, Bounds.Width - 1, Bounds.Height - 1); | |
| 2021 } | |
| 2022 protected override void MouseDown(Point position, MouseButtons buttons) { | |
| 2023 CaptureKeyboard(true); | |
| 2024 if ((buttons & MouseButtons.Left) != 0) { | |
| 2025 CaptureMouse(true); | |
| 2026 if (hasScrollBar && position.X > Bounds.Width - 17) { | |
| 2027 hitScrollBar = true; | |
| 2028 if (position.Y < 17) { | |
| 2029 offset--; | |
| 2030 buttonUpState = ButtonState.Pushed; | |
| 2031 } else if (position.Y > Bounds.Height - 17) { | |
| 2032 offset++; | |
| 2033 buttonDownState = ButtonState.Pushed; | |
| 2034 } else { | |
| 2035 offset = (int)Math.Round((position.Y - 17) * (itemsView.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10)); | |
| 2036 } | |
| 2037 if (offset < 0) offset = 0; | |
| 2038 if (offset >= itemsView.Count) offset = itemsView.Count - 1; | |
| 2039 Invalidate(); | |
| 2040 } else { | |
| 2041 MouseHandler(position, buttons, true); | |
| 2042 } | |
| 2043 } | |
| 2044 } | |
| 2045 protected override void MouseMove(Point position, MouseButtons buttons) { | |
| 2046 if (hitScrollBar) { | |
| 2047 if (position.Y < 17) { | |
| 2048 } else if (position.Y > Bounds.Height - 17) { | |
| 2049 } else { | |
| 2050 offset = (int)Math.Round((position.Y - 17) * (itemsView.Count - 1) / (double)(Bounds.Height - 17 - 17 - 10)); | |
| 2051 if (offset < 0) offset = 0; | |
| 2052 if (offset >= itemsView.Count) offset = itemsView.Count - 1; | |
| 2053 Invalidate(); | |
| 2054 } | |
| 2055 return; | |
| 2056 } | |
| 2057 MouseHandler(position, buttons, false); | |
| 2058 } | |
| 2059 protected override void MouseUp(Point position, MouseButtons buttons) { | |
| 2060 if ((buttons & MouseButtons.Left) != 0) { | |
| 2061 CaptureMouse(false); | |
| 2062 buttonUpState = buttonDownState = ButtonState.Normal; | |
| 2063 Invalidate(); | |
| 2064 if (hitScrollBar) { | |
| 2065 hitScrollBar = false; | |
| 2066 return; | |
| 2067 } | |
| 2068 } | |
| 2069 if (hitScrollBar) return; | |
| 2070 MouseHandler(position, buttons, false); | |
| 2071 } | |
| 2072 private void MouseHandler(Point position, MouseButtons buttons, Boolean down) { | |
| 2073 if ((buttons & MouseButtons.Left) != 0 && itemsView.Count > 0) { | |
| 2074 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2; | |
| 2075 int i = (position.Y - 2) / lh + offset; | |
| 2076 if (i < 0) i = 0; | |
| 2077 if (i >= itemsView.Count) i = itemsView.Count - 1; | |
| 2078 Boolean changed = false; | |
| 2079 FBGTreeNode current = itemsView[i]; | |
| 2080 if (!ReferenceEquals(highlighted, current)) changed = true; | |
| 2081 highlighted = current; | |
| 2082 if (current.Children.Count > 0 && (new Rectangle(3 + 19 * current.Depth, 2 + lh * (i - offset) + 2, 8, 8)).Contains(position)) { | |
| 2083 if (down) current.Expanded = !current.Expanded; | |
| 2084 } else if (current.HasCheckBox && (new Rectangle(3 + 19 * current.Depth + 14 + 2, 2 + lh * (i - offset), lh, lh)).Contains(position)) { | |
| 2085 if (down) current.Checked = !current.Checked; | |
| 2086 } else if ((new Rectangle(Point.Empty, Bounds.Size)).Contains(position)) { | |
| 2087 SelectedNode = current; | |
| 2088 changed = false; | |
| 2089 } | |
| 2090 if (changed) Invalidate(); | |
| 2091 } | |
| 2092 } | |
| 2093 protected override void KeyDown(Keys key) { | |
| 2094 base.KeyDown(key); | |
| 2095 if (key == Keys.Up) { | |
| 2096 int i = itemsView.IndexOf(selected); | |
| 2097 i--; | |
| 2098 if (i >= 0) SelectAndScrollIntoView(itemsView[i]); | |
| 2099 } else if (key == Keys.Down) { | |
| 2100 int i = itemsView.IndexOf(selected); | |
| 2101 i++; | |
| 2102 if (i < itemsView.Count) SelectAndScrollIntoView(itemsView[i]); | |
| 2103 } else if (key == Keys.Left && selected != null) { | |
| 2104 if (selected.Expanded && selected.Children.Count > 0) { | |
| 2105 selected.Expanded = false; | |
| 2106 } else { | |
| 2107 FBGTreeNode tn = selected.Parent as FBGTreeNode; | |
| 2108 if (tn != null) SelectAndScrollIntoView(tn); | |
| 2109 } | |
| 2110 } else if (key == Keys.Right && selected != null) { | |
| 2111 if (!selected.Expanded && selected.Children.Count > 0) { | |
| 2112 selected.Expanded = true; | |
| 2113 } else if (selected.Children.Count > 0) { | |
| 2114 SelectAndScrollIntoView(selected.Children[0]); | |
| 2115 } | |
| 2116 } else if (key == Keys.Space && selected != null) { | |
| 2117 if (selected.HasCheckBox) selected.Checked = !selected.Checked; | |
| 2118 } | |
| 2119 } | |
| 2120 private void SelectAndScrollIntoView(FBGTreeNode tn) { | |
| 2121 int i = itemsView.IndexOf(tn); | |
| 2122 if (i == -1) { | |
| 2123 for (FBGTreeNode tp = tn.Parent as FBGTreeNode; tp != null; tp = tp.Parent as FBGTreeNode) if (!tp.Expanded) tp.Expanded = true; | |
| 2124 i = itemsView.IndexOf(tn); | |
| 2125 } | |
| 2126 if (i != -1) { | |
| 2127 int lh = (int)Math.Ceiling(SystemFonts.DefaultFont.GetHeight() / 2.0) * 2; | |
| 2128 if (i < offset) offset = i; | |
| 2129 offset = Math.Max(offset, i - Bounds.Height / lh + 1); | |
| 2130 } | |
| 2131 highlighted = tn; | |
| 2132 SelectedNode = tn; | |
| 2133 } | |
| 2134 } | |
| 2135 } |