Add GUI to decode BeOS icons.

exeinfogui/BeOS/PanelBeIcon.xeto

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Panel xmlns="http://schema.picoe.ca/eto.forms" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <StackLayout Orientation="Vertical">
+        <StackLayout Orientation="Horizontal">
+            <StackLayoutItem HorizontalAlignment="Stretch" Expand="True">
+                <Label ID="lblSize">Size</Label>
+            </StackLayoutItem>
+            <StackLayoutItem HorizontalAlignment="Stretch" Expand="True">
+                <TextBox ID="txtSize" ReadOnly="True"/>
+            </StackLayoutItem>
+        </StackLayout>
+        <StackLayoutItem HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Expand="True">
+            <ImageView ID="imgIcon"/>
+        </StackLayoutItem>
+        <StackLayoutItem HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Expand="True">
+            <Panel ID="pnlPanel"/>
+        </StackLayoutItem>
+    </StackLayout>
+</Panel>

exeinfogui/BeOS/PanelBeIcon.xeto.cs

@@ -0,0 +1,73 @@
+using System.Collections.Generic;
+using System.Linq;
+using Eto.Drawing;
+using Eto.Forms;
+using Eto.Serialization.Xaml;
+using libexeinfo.BeOS;
+
+namespace exeinfogui.BeOS
+{
+    public class PanelBeIcon : Panel
+    {
+        ImageView    imgIcon;
+        Label        lblSize;
+        PanelHexDump panelHexDump;
+        Panel        pnlPanel;
+        TextBox      txtSize;
+
+        public PanelBeIcon()
+        {
+            XamlReader.Load(this);
+            panelHexDump     = new PanelHexDump();
+            pnlPanel.Content = panelHexDump;
+        }
+
+        public void Update(byte[] data, string type)
+        {
+            bool recognized = type == Consts.B_LARGE_ICON_TYPE || type == Consts.B_MINI_ICON_TYPE ||
+                              type == Consts.B_PNG_FORMAT;
+
+            if(type == Consts.B_PNG_FORMAT)
+            {
+                Bitmap png = new Bitmap(data);
+                if(png.Width == 0 || png.Height == 0)
+                {
+                    txtSize.Text  = $"{png.Width}x{png.Height} pixels";
+                    imgIcon.Image = png;
+
+                    lblSize.Text     = "Size";
+                    lblSize.Visible  = true;
+                    txtSize.Visible  = true;
+                    pnlPanel.Visible = false;
+                    return;
+                }
+
+                recognized = false;
+            }
+
+            if(data == null || !recognized)
+            {
+                imgIcon.Image    = null;
+                lblSize.Text     = "No data";
+                lblSize.Visible  = false;
+                txtSize.Visible  = false;
+                pnlPanel.Visible = false;
+                panelHexDump.Update(data);
+                return;
+            }
+
+            int width  = type == Consts.B_LARGE_ICON_TYPE ? 32 : 16;
+            int height = width;
+
+            List<int> pixels = data.Select(p => (int)Consts.ArgbSystemPalette[p]).ToList();
+
+            txtSize.Text  = $"{width}x{height} pixels";
+            imgIcon.Image = new Bitmap(width, height, PixelFormat.Format32bppRgba, pixels);
+
+            lblSize.Text     = "Size";
+            lblSize.Visible  = true;
+            txtSize.Visible  = true;
+            pnlPanel.Visible = false;
+        }
+    }
+}

exeinfogui/BeOS/TabBeResources.xeto.cs

@@ -40,6 +40,7 @@ namespace exeinfogui.BeOS
         PanelText    panelText;
         Panel        pnlResource;
         TreeGridView treeResources;
+        PanelBeIcon panelBeIcon;
 
         public TabBeResources()
         {
@@ -54,6 +55,7 @@ namespace exeinfogui.BeOS
 
             panelHexDump = new PanelHexDump();
             panelText    = new PanelText();
+            panelBeIcon = new PanelBeIcon();
         }
 
         public void Update(IEnumerable<ResourceTypeBlock> resources)
@@ -99,7 +101,12 @@ namespace exeinfogui.BeOS
             {
                 case Consts.B_MIME_STRING_TYPE:
                     pnlResource.Content = panelText;
-                    panelText.Update(data, Encoding.UTF8);
+                    panelText.Update(data, Encoding.ASCII);
+                    break;
+                case Consts.B_LARGE_ICON_TYPE:
+                case Consts.B_MINI_ICON_TYPE:
+                    pnlResource.Content = panelBeIcon;
+                    panelBeIcon.Update(data, type);
                     break;
                 default:
                     pnlResource.Content = panelHexDump;