make a DrawText function; draw the active photo's filename

Program.cs

@@ -143,24 +143,24 @@ void main() {
 // FIXME: this should probably be IDisposable?
 public class Photo {
   public bool Loaded = false;
-  private string file;
+  public string File;
   private Texture texture;
   private Texture placeholder;
   private Image<Rgba32>? image = null;
 
   public Photo(string file, Texture placeholder) {
-    this.file = file;
+    File = file;
     this.placeholder = placeholder;
     texture = placeholder;
   }
 
   public async void Load() {
-    image = await Image.LoadAsync<Rgba32>(file);
+    image = await Image.LoadAsync<Rgba32>(File);
     ExifProfile? exifs = image.Metadata.ExifProfile;
     if (exifs != null) {
       foreach (IExifValue exif in exifs.Values) {
         if (exif.Tag.ToString() == "Model") {
-          Console.WriteLine($"{file} {exif.Tag}: {exif.GetValue()}");
+          Console.WriteLine($"{File} {exif.Tag}: {exif.GetValue()}");
         }
       }
     }
@@ -456,7 +456,8 @@ public class Game : GameWindow {
     GL.BindBuffer(BufferTarget.ArrayBuffer, VertexBufferObject);
     GL.ActiveTexture(TextureUnit.Texture0);
 
-    Texture active = photos[photoIndex].Texture();
+    Photo activePhoto = photos[photoIndex];
+    Texture active = activePhoto.Texture();
 
     // FIXME: make a function for scaling & centering one box on another.
     float scaleX = 1f * geometry.PhotoBox.Size.X / active.Size.X;
@@ -478,10 +479,10 @@ public class Game : GameWindow {
         DrawBox(box, 3, Color4.White);
       }
     }
-    if (photos[photoIndex].Loaded) {
-      Texture label = Util.RenderText($"zoom: {(scale * 100):F1}%");
-      DrawTexture(label, Util.MakeBox(10, 10, label.Size.X, label.Size.Y));
-      label.Dispose();
+
+    DrawText(activePhoto.File, 10, 10);
+    if (activePhoto.Loaded) {
+      DrawText($"zoom: {(scale * 100):F1}%", 10, 30);
     }
 
     SwapBuffers();
@@ -506,6 +507,12 @@ public class Game : GameWindow {
     DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Max.X - thickness, box.Min.Y, thickness, box.Size.Y), color);
   }
 
+  void DrawText(string text, int x, int y) {
+    Texture label = Util.RenderText(text);
+    DrawTexture(label, Util.MakeBox(x, y, label.Size.X, label.Size.Y));
+    label.Dispose();
+  }
+
   protected override void OnResize(ResizeEventArgs e) {
     base.OnResize(e);
     Console.WriteLine($"OnResize: {e.Width}x{e.Height}");