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
  32 namespace System.Windows.Forms
  33 {
  34         public class ToolStripLabel : ToolStripItem
  35         {
  36                 private Color active_link_color;
  37                 private bool is_link;
  38                 private LinkBehavior link_behavior;
  39                 private Color link_color;
  40                 private bool link_visited;
  41                 private Color visited_link_color;
  42
  43                 #region Public Constructors
  44                 public ToolStripLabel ()
  45                         : this (String.Empty, null, false, null, String.Empty)
  46                 {
  47                 }
  48
  49                 public ToolStripLabel (Image image)
  50                         : this (String.Empty, image, false, null, String.Empty)
  51                 {
  52                 }
  53
  54                 public ToolStripLabel (string text)
  55                         : this (text, null, false, null, String.Empty)
  56                 {
  57                 }
  58
  59                 public ToolStripLabel (string text, Image image)
  60                         : this (text, image, false, null, String.Empty)
  61                 {
  62                 }
  63
  64                 public ToolStripLabel (string text, Image image, bool isLink)
  65                         : this (text, image, isLink, null, String.Empty)
  66                 {
  67                 }
  68
  69                 public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick)
  70                         : this (text, image, isLink, onClick, String.Empty)
  71                 {
  72                 }
  73
  74                 public ToolStripLabel (string text, Image image, bool isLink, EventHandler onClick, string name)
  75                         : base (text, image, onClick, name)
  76                 {
  77                         this.active_link_color = Color.Red;
  78                         this.is_link = isLink;
  79                         this.link_behavior = LinkBehavior.SystemDefault;
  80                         this.link_color = Color.Blue;
  81                         this.link_visited = false;
  82                         this.visited_link_color = Color.Purple;
  83                 }
  84                 #endregion
  85
  86                 #region Public Properties
  87                 public Color ActiveLinkColor {
  88                         get { return this.active_link_color; }
  89                         set {
  90                                 this.active_link_color = value;
  91                                 this.Invalidate ();
  92                         }
  93                 }
  94
  95                 public override bool CanSelect { get { return false; } }
  96
  97                 public bool IsLink {
  98                         get { return this.is_link; }
  99                         set {
 100                                 this.is_link = value;
 101                                 this.Invalidate ();
 102                         }
 103                 }
 104
 105                 public LinkBehavior LinkBehavior {
 106                         get { return this.link_behavior; }
 107                         set {
 108                                 this.link_behavior = value;
 109                                 this.Invalidate ();
 110                         }
 111                 }
 112
 113                 public Color LinkColor {
 114                         get { return this.link_color; }
 115                         set {
 116                                 this.link_color = value;
 117                                 this.Invalidate ();
 118                         }
 119                 }
 120
 121                 public bool LinkVisited {
 122                         get { return this.link_visited; }
 123                         set {
 124                                 this.link_visited = value;
 125                                 this.Invalidate ();
 126                         }
 127                 }
 128
 129                 public Color VisitedLinkColor
 130                 {
 131                         get { return this.visited_link_color; }
 132                         set {
 133                                 this.visited_link_color = value;
 134                                 this.Invalidate ();
 135                         }
 136                 }
 137                 #endregion
 138
 139                 #region Protected Methods
 140                 protected override void OnFontChanged (EventArgs e)
 141                 {
 142                         base.OnFontChanged (e);
 143                 }
 144
 145                 protected override void OnMouseEnter (EventArgs e)
 146                 {
 147                         base.OnMouseEnter (e);
 148                 }
 149
 150                 protected override void OnMouseLeave (EventArgs e)
 151                 {
 152                         base.OnMouseLeave (e);
 153                 }
 154
 155                 protected override void OnPaint (System.Windows.Forms.PaintEventArgs e)
 156                 {
 157                         base.OnPaint (e);
 158
 159                         if (this.Owner != null) {
 160                                 Color font_color = this.Enabled ? this.ForeColor : SystemColors.GrayText;
 161                                 Image draw_image = this.Enabled ? this.Image : ToolStripRenderer.CreateDisabledImage (this.Image);
 162
 163                                 this.Owner.Renderer.DrawLabelBackground (new System.Windows.Forms.ToolStripItemRenderEventArgs (e.Graphics, this));
 164
 165                                 Rectangle text_layout_rect;
 166                                 Rectangle image_layout_rect;
 167
 168                                 this.CalculateTextAndImageRectangles (out text_layout_rect, out image_layout_rect);
 169
 170                                 if (image_layout_rect != Rectangle.Empty)
 171                                         this.Owner.Renderer.DrawItemImage (new System.Windows.Forms.ToolStripItemImageRenderEventArgs (e.Graphics, this, draw_image, image_layout_rect));
 172                                 if (text_layout_rect != Rectangle.Empty)
 173                                         if (this.is_link) {
 174                                                 if (this.Pressed)               // Mouse Down
 175                                                 {
 176                                                         switch (this.link_behavior) {
 177                                                                 case LinkBehavior.SystemDefault:
 178                                                                 case LinkBehavior.AlwaysUnderline:
 179                                                                 case LinkBehavior.HoverUnderline:
 180                                                                         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));
 181                                                                         break;
 182                                                                 case LinkBehavior.NeverUnderline:
 183                                                                         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));
 184                                                                         break;
 185                                                         }
 186                                                 }
 187                                                 else if (this.Selected)         // Hover
 188                                                 {
 189                                                         switch (this.link_behavior) {
 190                                                                 case LinkBehavior.SystemDefault:
 191                                                                 case LinkBehavior.AlwaysUnderline:
 192                                                                 case LinkBehavior.HoverUnderline:
 193                                                                         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));
 194                                                                         break;
 195                                                                 case LinkBehavior.NeverUnderline:
 196                                                                         this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
 197                                                                         break;
 198                                                         }
 199                                                 }
 200                                                 else {
 201
 202                                                         if (this.link_visited)          // Normal, Visited
 203                                                         {
 204                                                                 switch (this.link_behavior) {
 205                                                                         case LinkBehavior.SystemDefault:
 206                                                                         case LinkBehavior.AlwaysUnderline:
 207                                                                                 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));
 208                                                                                 break;
 209                                                                         case LinkBehavior.NeverUnderline:
 210                                                                         case LinkBehavior.HoverUnderline:
 211                                                                                 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));
 212                                                                                 break;
 213                                                                 }
 214                                                         }
 215                                                         else                            // Normal
 216                                                         {
 217                                                                 switch (this.link_behavior) {
 218                                                                         case LinkBehavior.SystemDefault:
 219                                                                         case LinkBehavior.AlwaysUnderline:
 220                                                                                 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));
 221                                                                                 break;
 222                                                                         case LinkBehavior.NeverUnderline:
 223                                                                         case LinkBehavior.HoverUnderline:
 224                                                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, this.link_color, this.Font, this.TextAlign));
 225                                                                                 break;
 226                                                                 }
 227
 228                                                         }
 229                                                 }
 230                                         } else
 231                                                 this.Owner.Renderer.DrawItemText (new System.Windows.Forms.ToolStripItemTextRenderEventArgs (e.Graphics, this, this.Text, text_layout_rect, font_color, this.Font, this.TextAlign));
 232                         }
 233                 }
 234                 #endregion
 235         }
 236 }
 237 #endif