class/System.Drawing.Design/System.Drawing.Design/ColorEditor.cs

   1 //
   2 // System.Drawing.Design.ColorEditor.cs
   3 //
   4 // Authors:
   5 //  Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //  Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //  Jonathan Chambers (joncham@gmail.com)
   8 //
   9 // (C) 2003 Martin Willemoes Hansen
  10 // (C) 2003 Andreas Nahr
  11 // (C) 2006 Jonathan Chambers
  12 //
  13
  14 //
  15 // Permission is hereby granted, free of charge, to any person obtaining
  16 // a copy of this software and associated documentation files (the
  17 // "Software"), to deal in the Software without restriction, including
  18 // without limitation the rights to use, copy, modify, merge, publish,
  19 // distribute, sublicense, and/or sell copies of the Software, and to
  20 // permit persons to whom the Software is furnished to do so, subject to
  21 // the following conditions:
  22 //
  23 // The above copyright notice and this permission notice shall be
  24 // included in all copies or substantial portions of the Software.
  25 //
  26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33 //
  34
  35 using System;
  36 using System.Drawing;
  37 using System.Drawing.Design;
  38 using System.ComponentModel;
  39 using System.Windows.Forms;
  40 using System.Windows.Forms.Design;
  41
  42 namespace System.Drawing.Design
  43 {
  44         public class ColorEditor : UITypeEditor
  45         {
  46                 private IWindowsFormsEditorService editorService;
  47                 private Color selected_color;
  48                 private bool color_chosen;
  49                 private Control editor_control = null;
  50
  51                 public ColorEditor()
  52                 {
  53                 }
  54
  55                 public override object EditValue (ITypeDescriptorContext context,
  56                         IServiceProvider provider, object value)
  57                 {
  58                         if (context != null && provider != null) {
  59                                 editorService = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
  60                                 if (editorService != null) {
  61                                         if (editor_control == null)
  62                                                 editor_control = GetEditorControl (value);
  63                                         editorService.DropDownControl(editor_control);
  64                                         if (color_chosen)
  65                                                 return selected_color;
  66                                         else
  67                                                 return null;
  68                                 }
  69                         }
  70                         return base.EditValue(context, provider, value);
  71                 }
  72
  73                 private Control GetEditorControl (object value)
  74                 {
  75                         TabControl tab_control = new TabControl();
  76                         tab_control.Dock = DockStyle.Fill;
  77                         TabPage custom_tab = new TabPage("Custom");
  78                         TabPage web_tab = new TabPage("Web");
  79                         TabPage system_tab = new TabPage("System");
  80
  81                         ColorListBox web_listbox = new ColorListBox();
  82                         ColorListBox system_listbox = new ColorListBox();
  83                         web_listbox.Dock = DockStyle.Fill;
  84                         system_listbox.Dock = DockStyle.Fill;
  85
  86                         web_tab.Controls.Add(web_listbox);
  87                         system_tab.Controls.Add(system_listbox);
  88
  89                         SystemColorCompare system_compare = new SystemColorCompare();
  90                         System.Collections.ArrayList color_list = new System.Collections.ArrayList();
  91                         foreach (System.Reflection.PropertyInfo property in typeof(SystemColors).GetProperties(System.Reflection.BindingFlags.Public |System.Reflection.BindingFlags.Static)) {
  92                                 Color clr = (Color)property.GetValue(null,null);
  93                                 color_list.Add(clr);
  94                         }
  95                         color_list.Sort(system_compare);
  96                         system_listbox.Items.AddRange(color_list.ToArray());
  97                         system_listbox.MouseUp+=new MouseEventHandler(HandleMouseUp);
  98                         system_listbox.SelectedValueChanged+=new EventHandler(HandleChange);
  99
 100                         WebColorCompare web_compare = new WebColorCompare();
 101                         color_list = new System.Collections.ArrayList();
 102                         foreach (KnownColor known_color in Enum.GetValues(typeof(KnownColor)))
 103                         {
 104                                 Color color = Color.FromKnownColor(known_color);
 105                                 if (color.IsSystemColor)
 106                                         continue;
 107                                 color_list.Add(color);
 108                         }
 109                         color_list.Sort(web_compare);
 110                         web_listbox.Items.AddRange(color_list.ToArray());
 111                         web_listbox.MouseUp+=new MouseEventHandler(HandleMouseUp);
 112                         web_listbox.SelectedValueChanged+=new EventHandler(HandleChange);
 113
 114                         CustomColorPicker custom_picker = new CustomColorPicker ();
 115                         custom_picker.Dock = DockStyle.Fill;
 116                         custom_picker.ColorChanged += new EventHandler (CustomColorPicked);
 117                         custom_tab.Controls.Add (custom_picker);
 118
 119                         tab_control.TabPages.Add(custom_tab);
 120                         tab_control.TabPages.Add(web_tab);
 121                         tab_control.TabPages.Add(system_tab);
 122
 123                         if (value != null) {
 124                                 Color current_color = (Color)value;
 125                                 if (current_color.IsSystemColor)
 126                                 {
 127                                         system_listbox.SelectedValue = current_color;
 128                                         tab_control.SelectedTab = system_tab;
 129                                 }
 130                                 else if (current_color.IsKnownColor)
 131                                 {
 132                                         web_listbox.SelectedValue = current_color;
 133                                         tab_control.SelectedTab = web_tab;
 134                                 }
 135                                 selected_color = current_color;
 136                                 color_chosen = true;
 137                         }
 138
 139                         tab_control.Height = 216; // the height of the custom colors tab
 140                         return tab_control;
 141                 }
 142
 143                 private void HandleChange(object sender, EventArgs e)
 144                 {
 145                         selected_color = (Color)((ColorListBox)sender).Items[((ColorListBox)sender).SelectedIndex];
 146                         color_chosen = true;
 147                 }
 148
 149                 private void CustomColorPicked (object sender, EventArgs e)
 150                 {
 151                         selected_color = (Color)sender;
 152                         color_chosen = true;
 153                         if (editorService != null)
 154                                 editorService.CloseDropDown ();
 155                 }
 156
 157                 private void HandleMouseUp(object sender, MouseEventArgs e)
 158                 {
 159                         if (editorService != null)
 160                                 editorService.CloseDropDown();
 161                 }
 162
 163                 public override UITypeEditorEditStyle GetEditStyle (ITypeDescriptorContext context)
 164                 {
 165                         return UITypeEditorEditStyle.DropDown;
 166                 }
 167
 168                 public override bool GetPaintValueSupported (ITypeDescriptorContext context)
 169                 {
 170                         return true;
 171                 }
 172
 173                 public override void PaintValue (PaintValueEventArgs e)
 174                 {
 175                         Graphics G = e.Graphics;
 176
 177                         if (e.Value != null)
 178                         {
 179                                 Color C = (Color) e.Value;
 180                                 using (SolidBrush sb = new SolidBrush (C))
 181                                         G.FillRectangle (sb, e.Bounds);
 182                         }
 183                 }
 184
 185                 class ColorListBox : ListBox {
 186                         public ColorListBox() {
 187                                 this.DrawMode = DrawMode.OwnerDrawFixed;
 188                                 this.Sorted = true;
 189                                 this.ItemHeight = 14;
 190                                 this.BorderStyle = BorderStyle.FixedSingle;
 191                         }
 192
 193                         protected override void OnDrawItem(DrawItemEventArgs e) {
 194                                 e.DrawBackground();
 195                                 Color color = (Color)this.Items[e.Index];
 196                                 using (System.Drawing.SolidBrush brush = new SolidBrush(color))
 197                                         e.Graphics.FillRectangle(brush, 2,e.Bounds.Top+2,21,9);
 198                                 e.Graphics.DrawRectangle(SystemPens.WindowText, 2,e.Bounds.Top+2,21,9);
 199                                 e.Graphics.DrawString(color.Name, this.Font, SystemBrushes.WindowText, 26,e.Bounds.Top);
 200                                 if ((e.State & DrawItemState.Selected) != 0)
 201                                         e.DrawFocusRectangle();
 202                                 base.OnDrawItem (e);
 203                         }
 204                 }
 205
 206                 class SystemColorCompare : System.Collections.IComparer {
 207                         #region IComparer Members
 208
 209                         public int Compare(object x, object y) {
 210                                 Color c1 = (Color)x;
 211                                 Color c2 = (Color)y;
 212                                 return String.Compare(c1.Name, c2.Name);
 213                         }
 214
 215                         #endregion
 216                 }
 217                 class WebColorCompare : System.Collections.IComparer
 218                 {
 219                         #region IComparer Members
 220
 221                         public int Compare(object x, object y)
 222                         {
 223                                 Color c1 = (Color)x;
 224                                 Color c2 = (Color)y;
 225                                 return String.Compare(c1.Name, c2.Name);
 226                         }
 227
 228                         #endregion
 229                 }
 230
 231
 232                 class CustomColorPicker : UserControl
 233                 {
 234                         Color[,] colors;
 235                         bool highlighting;
 236                         int x, y;
 237                         public CustomColorPicker ()
 238                         {
 239                                 colors = new Color[8, 8];
 240                                 colors[0, 0] = Color.White;
 241                                 colors[1, 0] = Color.FromArgb (224, 224, 224);
 242                                 colors[2, 0] = Color.Silver;
 243                                 colors[3, 0] = Color.Gray;
 244                                 colors[4, 0] = Color.FromArgb (64, 64, 64);
 245                                 colors[5, 0] = Color.Black;
 246                                 colors[6, 0] = Color.White;
 247                                 colors[7, 0] = Color.White;
 248
 249                                 colors[0, 1] = Color.FromArgb (255, 192, 192);
 250                                 colors[1, 1] = Color.FromArgb (255, 128, 128);
 251                                 colors[2, 1] = Color.Red;
 252                                 colors[3, 1] = Color.FromArgb (192, 0, 0);
 253                                 colors[4, 1] = Color.Maroon;
 254                                 colors[5, 1] = Color.FromArgb (64, 0, 0);
 255                                 colors[6, 1] = Color.White;
 256                                 colors[7, 1] = Color.White;
 257
 258                                 colors[0, 2] = Color.FromArgb (255, 224, 192);
 259                                 colors[1, 2] = Color.FromArgb (255, 192, 128);
 260                                 colors[2, 2] = Color.FromArgb (255, 128, 0);
 261                                 colors[3, 2] = Color.FromArgb (192, 64, 0);
 262                                 colors[4, 2] = Color.FromArgb (128, 64, 0);
 263                                 colors[5, 2] = Color.FromArgb (128, 64, 64);
 264                                 colors[6, 2] = Color.White;
 265                                 colors[7, 2] = Color.White;
 266
 267                                 colors[0, 3] = Color.FromArgb (255, 255, 192);
 268                                 colors[1, 3] = Color.FromArgb (255, 255, 128);
 269                                 colors[2, 3] = Color.Yellow;
 270                                 colors[3, 3] = Color.FromArgb (192, 192, 0);
 271                                 colors[4, 3] = Color.Olive;
 272                                 colors[5, 3] = Color.FromArgb (64, 64, 0);
 273                                 colors[6, 3] = Color.White;
 274                                 colors[7, 3] = Color.White;
 275
 276                                 colors[0, 4] = Color.FromArgb (192, 255, 192);
 277                                 colors[1, 4] = Color.FromArgb (128, 255, 128);
 278                                 colors[2, 4] = Color.Lime;
 279                                 colors[3, 4] = Color.FromArgb (0, 192, 0);
 280                                 colors[4, 4] = Color.Green;
 281                                 colors[5, 4] = Color.FromArgb (0, 64, 0);
 282                                 colors[6, 4] = Color.White;
 283                                 colors[7, 4] = Color.White;
 284
 285                                 colors[0, 5] = Color.FromArgb (192, 255, 255);
 286                                 colors[1, 5] = Color.FromArgb (128, 255, 255);
 287                                 colors[2, 5] = Color.Cyan;
 288                                 colors[3, 5] = Color.FromArgb (0, 192, 192);
 289                                 colors[4, 5] = Color.Teal;
 290                                 colors[5, 5] = Color.FromArgb (0, 64, 64);
 291                                 colors[6, 5] = Color.White;
 292                                 colors[7, 5] = Color.White;
 293
 294                                 colors[0, 6] = Color.FromArgb (192, 192, 255);
 295                                 colors[1, 6] = Color.FromArgb (128, 128, 255);
 296                                 colors[2, 6] = Color.Blue;
 297                                 colors[3, 6] = Color.FromArgb (0, 0, 192);
 298                                 colors[4, 6] = Color.Navy;
 299                                 colors[5, 6] = Color.FromArgb (0, 0, 64);
 300                                 colors[6, 6] = Color.White;
 301                                 colors[7, 6] = Color.White;
 302
 303                                 colors[0, 7] = Color.FromArgb (255, 192, 255);
 304                                 colors[1, 7] = Color.FromArgb (255, 128, 255);
 305                                 colors[2, 7] = Color.Fuchsia;
 306                                 colors[3, 7] = Color.FromArgb (192, 0, 192);
 307                                 colors[4, 7] = Color.Purple;
 308                                 colors[5, 7] = Color.FromArgb (64, 0, 64);
 309                                 colors[6, 7] = Color.White;
 310                                 colors[7, 7] = Color.White;
 311                         }
 312
 313                         public event EventHandler ColorChanged;
 314
 315                         protected override void OnPaint (PaintEventArgs e)
 316                         {
 317                                 for (int i = 0; i < 8; i++)
 318                                         for (int j = 0; j < 8; j++) {
 319                                                 DrawRect (e.Graphics, colors[i, j], j * 24, i * 24);
 320                                         }
 321
 322                                 if (highlighting) {
 323                                         int i = x / 24;
 324                                         int j = y / 24;
 325                                         ControlPaint.DrawFocusRectangle (e.Graphics, new Rectangle (i * 24 - 2, j * 24 - 2, 24, 24));
 326                                 }
 327
 328                                 base.OnPaint (e);
 329                         }
 330
 331                         void DrawRect (Graphics g, Color color, int x, int y)
 332                         {
 333                                 using (SolidBrush brush = new SolidBrush (color))
 334                                         g.FillRectangle (brush, x, y, 20, 20);
 335                                 ControlPaint.DrawBorder3D (g, x, y, 20, 20);
 336                         }
 337
 338                         protected override void OnMouseDown (MouseEventArgs e)
 339                         {
 340                                 if (e.X % 24 < 20 && e.Y % 24 < 20) {
 341                                         x = e.X;
 342                                         y = e.Y;
 343                                         highlighting = true;
 344                                         Invalidate ();
 345                                 }
 346                                 base.OnMouseDown (e);
 347                         }
 348
 349                         protected override void OnMouseUp (MouseEventArgs e)
 350                         {
 351                                 if (highlighting && this.ClientRectangle.Contains (e.X, e.Y)) {
 352                                         if (ColorChanged != null)
 353                                                 ColorChanged (colors[y / 24, x / 24], EventArgs.Empty);
 354                                         highlighting = false;
 355                                 }
 356                                 base.OnMouseUp (e);
 357                         }
 358
 359                         protected override void OnMouseMove (MouseEventArgs e)
 360                         {
 361                                 if (highlighting) {
 362                                         int old_x = x;
 363                                         int old_y = y;
 364                                         x = e.X;
 365                                         y = e.Y;
 366                                         if ((old_x / 24 != x / 24 || old_y / 24 != y / 24) &&
 367                                                 x / 24 < 8 && y / 24 < 8) {
 368                                                 Region r = new Region ();
 369                                                 r.Union (new Rectangle (old_x - 2, old_y - 2, 24, 24));
 370                                                 r.Union (new Rectangle (x - 2, y - 2, 24, 24));
 371                                                 Invalidate (r);
 372                                         }
 373                                 }
 374                                 base.OnMouseMove (e);
 375                         }
 376                 }
 377         }
 378 }