restructure

PCPalConfigurator/Rendering/RenderPreview.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+
+namespace PCPalConfigurator.Rendering
+{
+    /// <summary>
+    /// Renders OLED preview elements to a graphics context
+    /// </summary>
+    public class OledRenderer
+    {
+        private const int OledWidth = 256;
+        private const int OledHeight = 64;
+
+        /// <summary>
+        /// Renders a list of preview elements to a graphics context
+        /// </summary>
+        public void RenderPreview(Graphics g, List<PreviewElement> elements, int panelWidth, int panelHeight)
+        {
+            // Create graphics object with smooth rendering
+            g.SmoothingMode = SmoothingMode.AntiAlias;
+
+            // Calculate scale to fit preview in panel while maintaining aspect ratio
+            float scaleX = (float)panelWidth / OledWidth;
+            float scaleY = (float)panelHeight / OledHeight;
+            float scale = Math.Min(scaleX, scaleY);
+
+            // Calculate centered position
+            int displayWidth = (int)(OledWidth * scale);
+            int displayHeight = (int)(OledHeight * scale);
+            int offsetX = (panelWidth - displayWidth) / 2;
+            int offsetY = (panelHeight - displayHeight) / 2;
+
+            // Draw display outline
+            Rectangle displayRect = new Rectangle(offsetX, offsetY, displayWidth, displayHeight);
+            g.DrawRectangle(Pens.DarkGray, displayRect);
+
+            // Set up transformation to scale the preview elements
+            g.TranslateTransform(offsetX, offsetY);
+            g.ScaleTransform(scale, scale);
+
+            // Draw all elements
+            foreach (var element in elements)
+            {
+                element.Draw(g);
+            }
+
+            // Reset transformation
+            g.ResetTransform();
+
+            // Draw labels and guidelines
+            g.DrawString($"OLED: {OledWidth}x{OledHeight}", new Font("Arial", 8), Brushes.Gray, 5, 5);
+        }
+
+        /// <summary>
+        /// Gets the OLED display dimensions
+        /// </summary>
+        public static (int Width, int Height) GetDisplayDimensions()
+        {
+            return (OledWidth, OledHeight);
+        }
+    }
+}