add code to create basic image using record types.

SmoulderingBeachBall/ImageMaker.fs

@@ -8,20 +8,18 @@ module ImageMaker =
 
     type OverlayType =
         | Border
-        | Complete
+        | Full
 
-    type OverlaySpec = {
+    type OverlaySpec =
-        colour: Brush;
+        { colour: Brush;
-        overlayType: OverlayType
+          overlayType: OverlayType }
-        }
 
-    type ImageSpec = { 
+    type ImageSpec =
-        width: int;
+        { width: int;
-        height: int;
+          height: int;
-        colour: Brush;
+          colour: Brush;
-        filePath: string;
+          filePath: string;
-        overlay: OverlaySpec
+          overlay: OverlaySpec }
-        }
 
     let private validateDimension dimension =
         match dimension with
@@ -49,3 +47,23 @@ module ImageMaker =
             | :? ArgumentException as ex -> return ex.Message
             | _ as ex -> return ex.Message
         }
+
+    let drawMainImage spec =
+        use bitmap = new Bitmap(spec.width, spec.height)
+        use graphics = Graphics.FromImage(bitmap)
+        graphics.FillRectangle(spec.colour, new Rectangle(0, 0, bitmap.Width, bitmap.Height))
+        bitmap.Save(spec.filePath)
+
+    let makeImage2 spec = 
+        async {
+            try
+                validateDimension spec.width
+                validateDimension spec.height
+                validateDirectory spec.filePath
+                // add option code for overlay here
+                drawMainImage spec
+                return "Image saved."
+            with
+            | :? ArgumentException as ex -> return ex.Message
+            | _ as ex -> return ex.Message
+        }

SmoulderingBeachBall/ScratchPad.fsx

@@ -3,6 +3,7 @@
 open System.Drawing
 open System.Drawing.Imaging
 open SmoulderingBeachBall
+open SmoulderingBeachBall.ImageMaker
 
 // INITIAL IDEA =======================================================================================================
 
@@ -25,4 +26,22 @@ let im_colour = Brushes.BurlyWood
 let im_testPath = "C:/users/craig/desktop/test.png"
 
 ImageMaker.makeImage im_width im_height im_colour im_testPath
-    |> Async.RunSynchronously
+    |> Async.RunSynchronously
+
+
+let borderOverlay =
+    { colour = Brushes.BlueViolet;
+      overlayType = Border }
+
+let fullOverlay =
+    { colour = Brushes.Fuchsia;
+      overlayType = Full }
+
+let imageSpec =
+    { width = 500;
+      height = 500;
+      colour = Brushes.Yellow;
+      filePath = im_testPath;
+      overlay = borderOverlay } // Change this to quickly change between a border overlay and a full overlay.
+
+makeImage2 imageSpec |> Async.RunSynchronously