1 files changed, 113 insertions, 0 deletions
diff --git a/Form1.cs b/Form1.cs
new file mode 100644
index 0000000..980a5aa
--- /dev/null
+++ b/Form1.cs
@@ -0,0 +1,113 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.IO;
+using System.Drawing.Imaging;
+
+namespace Rip81Font
+{
+    public partial class Form1 : Form
+    {
+        private byte[] rom;
+
+        public Form1()
+        {
+            InitializeComponent();
+
+            rom = File.ReadAllBytes("Data/zx81.bin");
+
+            m_pictureBox.Image = new Bitmap(8, 8);
+        }
+
+        private void Rip(int code)
+        {
+            bool inv = false;
+
+            if (code > 127)
+            {
+                inv = true;
+                code -= 128;
+            }
+
+            if (code > 63)
+            {
+                using (Graphics g = Graphics.FromImage(m_pictureBox.Image))
+                {
+                    g.FillRectangle(Brushes.Red, 0, 0, 8, 8);
+                }
+            }
+            else
+            {
+                int addr = 0x1e00 + code * 8;
+
+                using (Graphics g = Graphics.FromImage(m_pictureBox.Image))
+                {
+                    for(int f = 0; f < 8; f++)
+                    {
+                        byte b = rom[addr+f];
+
+                        for(int n = 0; n < 8; n++)
+                        {
+                            Brush p;
+
+                            if ((b & (1 << n)) != 0)
+                            {
+                                if (inv)
+                                {
+                                    p = Brushes.White;
+                                }
+                                else
+                                {
+                                    p = Brushes.Black;
+                                }
+                            }
+                            else
+                            {
+                                if (inv)
+                                {
+                                    p = Brushes.Black;
+                                }
+                                else
+                                {
+                                    p = Brushes.White;
+                                }
+                            }
+
+                            g.FillRectangle(p, 7 - n, f, 1, 1);
+                        }
+                    }
+                }
+            }
+
+            using (Graphics g = m_pictureBox.CreateGraphics())
+            {
+                g.DrawImageUnscaled(m_pictureBox.Image, 0, 0);
+            }
+        }
+
+        private void OnCodeChanged(object sender, EventArgs e)
+        {
+            Rip(Convert.ToInt32(m_number.Value));
+        }
+
+        private void OnExportAll(object sender, EventArgs e)
+        {
+            Directory.CreateDirectory("Export");
+
+            for(int f = 0; f < 256; f++)
+            {
+                Rip(f);
+
+                string fname = String.Format("Export/{0}.png", f);
+
+                m_pictureBox.Image.Save(fname, ImageFormat.Png);
+            }
+        }
+    }
+}