mcs/class/Managed.Windows.Forms/System.Windows.Forms/ToolStripLabel.cs

   1 //
   2 // ToolStripLabel.cs
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 // Copyright (c) 2006 Jonathan Pobst
  24 //
  25 // Authors:
  26 //      Jonathan Pobst (monkey@jpobst.com)
  27 //
  28 #if NET_2_0
  29
  30 using System.Drawing;
  31 using System.ComponentModel;
  32
  33 namespace System.Windows.Forms
  34 {
  35         public class ToolStripLabel : ToolStripItem
  36         {
  37                 private Color active_link_color;
  38                 private bool is_link;
  39                 private LinkBehavior link_behavior;
  40                 private Color link_color;
  41                 private bool link_visited;
  42                 private Color visited_link_color;
  43
  44                 #region Public Constructors
  45                 public ToolStripLabel ()
  46                         : this (String.Empty, null, false, null, String.Empty)
  47                 {
  48                 }
  49
  50                 public ToolStripLabel (Image image)
  51                         : this (String.Empty, image, false, null, String.Empty)
  52                 {
  53                 }
  54
  55                 public ToolStripLabel (string text)
  56                         : this (text, null, false, null, String.Empty)
  57                 {
  58                 }
  59
  60                 public ToolStripLabel (string text, Image image)
  61                         : this (text, image, false, null, String.Empty)
  62                 {
  63                 }
  64
  65                 public ToolStripLabel (string text, Image image, bool isLink)
  66                         : this (text, image, isLink, null, String.Empty)
  67                 {
  68                 }
  69
  70                 public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick)
  71                         : this (text, image, isLink, onClick, String.Empty)
  72                 {
  73                 }
  74
  75                 public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick, string name)
  76                         : base (text, image, onClick, name)
  77                 {
  78                         this.active_link_color = Color.Red;
  79                         this.is_link = isLink;
  80                         this.link_behavior = LinkBehavior.SystemDefault;
  81                         this.link_color = Color.Blue;
  82                         this.link_visited = false;
  83                         this.visited_link_color = Color.Purple;
  84                 }
  85                 #endregion
  86
  87                 #region Public Properties
  88                 public Color ActiveLinkColor {
  89                         get { return this.active_link_color; }
  90                         set {
  91                                 this.active_link_color = value;
  92                                 this.Invalidate ();
  93                         }
  94                 }
  95
  96                 public override bool CanSelect { get { return false; } }
  97
  98                 [DefaultValue (false)]
  99                 public bool IsLink {
 100                         get { return this.is_link; }
 101                         set {
 102                                 this.is_link = value;
 103                                 this.Invalidate ();
 104                         }
 105                 }
 106
 107                 [DefaultValue (LinkBehavior.SystemDefault)]
 108                 public LinkBehavior LinkBehavior {
 109                         get { return this.link_behavior; }
 110                         set {
 111                                 this.link_behavior = value;
 112                                 this.Invalidate ();
 113                         }
 114                 }
 115
 116                 public Color LinkColor {
 117                         get { return this.link_color; }
 118                         set {
 119                                 this.link_color = value;
 120                                 this.Invalidate ();
 121                         }
 122                 }
 123
 124                 [DefaultValue (false)]
 125                 public bool LinkVisited {
 126                         get { return this.link_visited; }
 127                         set {
 128                                 this.link_visited = value;
 129                                 this.Invalidate ();
 130                         }
 131                 }
 132
 133                 public Color VisitedLinkColor
 134                 {
 135                         get { return this.visited_link_color; }
 136                         set {
 137                                 this.visited_link_color = value;
 138                                 this.Invalidate ();
 139                         }
 140                 }
 141                 #endregion
 142
 143                 #region Protected Methods
 144                 protected override AccessibleObject CreateAccessibilityInstance ()
 145                 {
 146                         ToolStripItemAccessibleObject ao = new ToolStripItemAccessibleObject (this);
 147
 148                         ao.role = AccessibleRole.StaticText;
 149                         ao.state = AccessibleStates.ReadOnly;
 150
 151                         return ao;
 152                 }
 153
 154                 protected override void OnFontChanged (EventArgs e)
 155                 {
 156                         base.OnFontChanged (e);
 157                 }
 158
 159                 protected override void OnMouseEnter (EventArgs e)
 160                 {
 161                         base.OnMouseEnter (e);
 162                 }
 163
 164                 protected override void OnMouseLeave (EventArgs e)
 165                 {
 166                         base.OnMouseLeave (e);
 167                 }
 168
 169                 protected override void OnPaint (System.Windows.Forms.PaintEventArgs e)
 170                 {
 171                         base.OnPaint (e);
 172
 173                         if (this.Owner != null) {
 174                                 Color font_color = this.Enabled ? this.ForeColor : SystemColors.GrayText;
 175                                 Image draw_image = this.Enabled ? this.Image : ToolStripRenderer.CreateDisabledImage (this.Image);
 176
 177                                 this.Owner.Renderer.DrawLabelBackground (new System.Windows.Forms.ToolStripItemRenderEventArgs (e.Graphics, this));
 178
 179                                 Rectangle text_layout_rect;
 180                                 Rectangle image_layout_rect;
 181
 182                                 this.CalculateTextAndImageRectangles (out text_layout_rect, out image_layout_rect);
 183
 184                                 if (image_layout_rect != Rectangle.Empty)
 185                                         this.Owner.Renderer.DrawItemImage (new System.Windows.Forms.ToolStripItemImageRenderEventArgs (e.Graphics, this, draw_image, image_layout_rect));
 186                                 if (text_layout_rect != Rectangle.Empty)
 187                                         if (this.is_link) {
 188                                                 if (this.Pressed)               // Mouse Down
 189                                                 {
 190                                                         switch (this.link_behavior) {
 191                                                                 case LinkBehavior.SystemDefault:
 192                                                                 case LinkBehavior.AlwaysUnderline:
 193                                                                 case LinkBehavior.HoverUnderline:
 194                                                                         this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.active_link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
 195                                                                         break;
 196                                                                 case LinkBehavior.NeverUnderline:
 197                                                                         this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.active_link_color, this.Font, this.TextAlign));
 198                                                                         break;
 199                                                         }
 200                                                 }
 201                                                 else if (this.Selected)         // Hover
 202                                                 {
 203                                                         switch (this.link_behavior) {
 204                                                                 case LinkBehavior.SystemDefault:
 205                                                                 case LinkBehavior.AlwaysUnderline:
 206                                                                 case LinkBehavior.HoverUnderline:
 207                                                                         this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
 208                                                                         break;
 209                                                                 case LinkBehavior.NeverUnderline:
 210                                                                         this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
 211                                                                         break;
 212                                                         }
 213                                                 }
 214                                                 else {
 215
 216                                                         if (this.link_visited)          // Normal, Visited
 217                                                         {
 218                                                                 switch (this.link_behavior) {
 219                                                                         case LinkBehavior.SystemDefault:
 220                                                                         case LinkBehavior.AlwaysUnderline:
 221                                                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.visited_link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
 222                                                                                 break;
 223                                                                         case LinkBehavior.NeverUnderline:
 224                                                                         case LinkBehavior.HoverUnderline:
 225                                                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.visited_link_color, this.Font, this.TextAlign));
 226                                                                                 break;
 227                                                                 }
 228                                                         }
 229                                                         else                            // Normal
 230                                                         {
 231                                                                 switch (this.link_behavior) {
 232                                                                         case LinkBehavior.SystemDefault:
 233                                                                         case LinkBehavior.AlwaysUnderline:
 234                                                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, new Font (this.Font, FontStyle.Underline), this.TextAlign));
 235                                                                                 break;
 236                                                                         case LinkBehavior.NeverUnderline:
 237                                                                         case LinkBehavior.HoverUnderline:
 238                                                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
 239                                                                                 break;
 240                                                                 }
 241
 242                                                         }
 243                                                 }
 244                                         } else
 245                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, font_color, this.Font, this.TextAlign));
 246                         }
 247                 }
 248                 #endregion
 249         }
 250 }
 251 #endif