Code/Tools/LuaRemoteDebugger/Aga.Controls/Tree/NodeControls/NodeIcon.cs

   1 // Copyright 2001-2019 Crytek GmbH / Crytek Group. All rights reserved.
   2
   3 using System;
   4 using System.Collections.Generic;
   5 using System.Text;
   6 using System.Drawing;
   7 using System.Windows.Forms;
   8 using Aga.Controls.Properties;
   9 using System.ComponentModel;
  10
  11 namespace Aga.Controls.Tree.NodeControls
  12 {
  13         public class NodeIcon : BindableControl
  14         {
  15                 public NodeIcon()
  16                 {
  17                         LeftMargin = 1;
  18                 }
  19
  20                 public override Size MeasureSize(TreeNodeAdv node, DrawContext context)
  21                 {
  22                         Image image = GetIcon(node);
  23                         if (image != null)
  24                                 return image.Size;
  25                         else
  26                                 return Size.Empty;
  27                 }
  28
  29
  30                 public override void Draw(TreeNodeAdv node, DrawContext context)
  31                 {
  32                         Image image = GetIcon(node);
  33                         if (image != null)
  34                         {
  35                                 Rectangle r = GetBounds(node, context);
  36                                 if ( image.Width > 0 && image.Height > 0 )
  37                                 {
  38                                         switch (_scaleMode)
  39                                         {
  40                                                 case ImageScaleMode.Fit:
  41                                                         context.Graphics.DrawImage(image, r);
  42                                                         break;
  43                                                 case ImageScaleMode.ScaleDown:
  44                                                         {
  45                                                                 float factor = Math.Min((float)r.Width / (float)image.Width, (float)r.Height / (float)image.Height);
  46                                                                 if (factor < 1)
  47                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width * factor, image.Height * factor);
  48                                                                 else
  49                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width, image.Height);
  50                                                         } break;
  51                                                 case ImageScaleMode.ScaleUp:
  52                                                         {
  53                                                                 float factor = Math.Max((float)r.Width / (float)image.Width, (float)r.Height / (float)image.Height);
  54                                                                 if (factor > 1)
  55                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width * factor, image.Height * factor);
  56                                                                 else
  57                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width, image.Height);
  58                                                         } break;
  59                                                 case ImageScaleMode.AlwaysScale:
  60                                                         {
  61                                                                 float fx = (float)r.Width / (float)image.Width;
  62                                                                 float fy = (float)r.Height / (float)image.Height;
  63                                                                 if (Math.Min(fx, fy) < 1)
  64                                                                 { //scale down
  65                                                                         float factor = Math.Min(fx, fy);
  66                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width * factor, image.Height * factor);
  67                                                                 }
  68                                                                 else if (Math.Max(fx, fy) > 1)
  69                                                                 {
  70                                                                         float factor = Math.Max(fx, fy);
  71                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width * factor, image.Height * factor);
  72                                                                 }
  73                                                                 else
  74                                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width, image.Height);
  75                                                         } break;
  76                                                 case ImageScaleMode.Clip:
  77                                                 default:
  78                                                         context.Graphics.DrawImage(image, r.X, r.Y, image.Width, image.Height);
  79                                                         break;
  80                                         }
  81                                 }
  82
  83                         }
  84                 }
  85
  86                 protected virtual Image GetIcon(TreeNodeAdv node)
  87                 {
  88                         return GetValue(node) as Image;
  89                 }
  90
  91         private ImageScaleMode _scaleMode = ImageScaleMode.Clip;
  92         [DefaultValue("Clip"), Category("Appearance")]
  93         public ImageScaleMode ScaleMode
  94         {
  95             get { return _scaleMode; }
  96             set { _scaleMode = value; }
  97         }
  98
  99
 100         }
 101 }