feat: Connect from an oleobject using COM connection (Powerbuilder, VB)

QRCoder/ASCIIQRCode.cs

@@ -4,16 +4,21 @@
 
 namespace QRCoder
 {
-    public class AsciiQRCode : AbstractQRCode<string>, IDisposable
+    public class AsciiQRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public AsciiQRCode() { }
+
         public AsciiQRCode(QRCodeData data) : base(data) { }
 
         /// <summary>
         /// Returns a strings that contains the resulting QR code as ASCII chars.
         /// </summary>
         /// <param name="repeatPerModule">Number of repeated darkColorString/whiteSpaceString per module.</param>
         /// <returns></returns>
-        public override string GetGraphic(int repeatPerModule)
+        public string GetGraphic(int repeatPerModule)
         {
             return string.Join("\n", GetLineByLineGraphic(repeatPerModule));
         }
@@ -86,9 +91,5 @@ public string[] GetLineByLineGraphic(int repeatPerModule, string darkColorString
             }
             return qrCode.ToArray();
         }
-        public void Dispose()
-        {
-            this.QrCodeData = null;
-        }
     }
 }

QRCoder/AbstractQRCode.cs

@@ -1,13 +1,27 @@
 namespace QRCoder
 {
-    public abstract class AbstractQRCode<T>
+    public abstract class AbstractQRCode
     {
         protected QRCodeData QrCodeData { get; set; }
 
+        protected AbstractQRCode() {
+        }
+
         protected AbstractQRCode(QRCodeData data) {
             this.QrCodeData = data;
         }
-
-        public abstract T GetGraphic(int pixelsPerModule);
+
+        /// <summary>
+        /// Set a QRCodeData object that will be used to generate QR code. Used in COM Objects connections
+        /// </summary>
+        /// <param name="data">Need a QRCodeData object generated by QRCodeGenerator.CreateQrCode()</param>
+        virtual public void SetQRCodeData(QRCodeData data) {
+            this.QrCodeData = data;
+        }
+
+        public void Dispose()
+        {
+            this.QrCodeData = null;
+        }
     }
 }

QRCoder/Base64QRCode.cs

@@ -9,15 +9,26 @@
 
 namespace QRCoder
 {
-    public class Base64QRCode : AbstractQRCode<string>, IDisposable
+    public class Base64QRCode : AbstractQRCode, IDisposable
     {
         private QRCode qr;
 
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public Base64QRCode() {
+            qr = new QRCode();
+        }
+
         public Base64QRCode(QRCodeData data) : base(data) {
             qr = new QRCode(data);
         }
+
+        public override void SetQRCodeData(QRCodeData data) {
+            this.qr.SetQRCodeData(data);
+        }
 
-        public override string GetGraphic(int pixelsPerModule)
+        public string GetGraphic(int pixelsPerModule)
         {
             return this.GetGraphic(pixelsPerModule, Color.Black, Color.White, true);
         }

QRCoder/BitmapByteQRCode.cs

@@ -7,11 +7,16 @@ namespace QRCoder
 {
 
     // ReSharper disable once InconsistentNaming
-    public class BitmapByteQRCode : AbstractQRCode<byte[]>, IDisposable
+    public class BitmapByteQRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public BitmapByteQRCode() { }
+
         public BitmapByteQRCode(QRCodeData data) : base(data) { }
 
-        public override byte[] GetGraphic(int pixelsPerModule)
+        public byte[] GetGraphic(int pixelsPerModule)
         {
             return GetGraphic(pixelsPerModule, new byte[] { 0x00, 0x00, 0x00 }, new byte[] { 0xFF, 0xFF, 0xFF });
         }
@@ -91,10 +96,5 @@ private byte[] IntTo4Byte(int inp)
             }
             return bytes;
         }
-
-        public void Dispose()
-        {
-            this.QrCodeData = null;
-        }
     }
 }

QRCoder/PngByteQRCode.cs

@@ -4,22 +4,22 @@
 
 namespace QRCoder
 {
-    public sealed class PngByteQRCode : AbstractQRCode<byte[]>, IDisposable
+    public sealed class PngByteQRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public PngByteQRCode() { }
+
         public PngByteQRCode(QRCodeData data) : base(data)
         {
         }
 
-        public void Dispose()
-        {
-            this.QrCodeData?.Dispose();
-            this.QrCodeData = null;
-        }
 
         /// <summary>
         /// Creates a black &amp; white PNG of the QR code, using 1-bit grayscale.
         /// </summary>
-        public override byte[] GetGraphic(int pixelsPerModule)
+        public byte[] GetGraphic(int pixelsPerModule)
         {
             using (var png = new PngBuilder())
             {

QRCoder/Properties/AssemblyInfo.cs

@@ -17,7 +17,7 @@
 // Durch Festlegen von ComVisible auf "false" werden die Typen in dieser Assembly unsichtbar 
 // für COM-Komponenten. Wenn Sie auf einen Typ in dieser Assembly von 
 // COM zugreifen müssen, legen Sie das ComVisible-Attribut für diesen Typ auf "true" fest.
-[assembly: ComVisible(false)]
+[assembly: ComVisible(true)]
 
 // Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
 [assembly: Guid("e668b98b-83bb-4e60-b33c-4fd5ed9c0156")]

QRCoder/QRCode.cs

@@ -6,11 +6,16 @@ namespace QRCoder
 {
     using System;
 
-    public class QRCode : AbstractQRCode<Bitmap>, IDisposable
+    public class QRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public QRCode() { }
+
         public QRCode(QRCodeData data) : base(data) {}
 
-        public override Bitmap GetGraphic(int pixelsPerModule)
+        public Bitmap GetGraphic(int pixelsPerModule)
         {
             return this.GetGraphic(pixelsPerModule, Color.Black, Color.White, true);
         }
@@ -130,10 +135,5 @@ internal GraphicsPath CreateRoundedRectanglePath(RectangleF rect, int cornerRadi
             roundedRect.CloseFigure();
             return roundedRect;
         }
-
-        public void Dispose()
-        {
-            this.QrCodeData = null;
-        }
     }
 }

QRCoder/SvgQRCode.cs

@@ -4,12 +4,15 @@
 
 namespace QRCoder
 {
-    public class SvgQRCode : AbstractQRCode<string>, IDisposable
+    public class SvgQRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public SvgQRCode() { }
         public SvgQRCode(QRCodeData data) : base(data) { }
-
-
-        public override string GetGraphic(int pixelsPerModule)
+
+        public string GetGraphic(int pixelsPerModule)
         {
             var viewBox = new Size(pixelsPerModule*this.QrCodeData.ModuleMatrix.Count, pixelsPerModule * this.QrCodeData.ModuleMatrix.Count);
             return this.GetGraphic(viewBox, Color.Black, Color.White);
@@ -71,10 +74,5 @@ private string CleanSvgVal(double input)
             //Clean double values for international use/formats
             return input.ToString(System.Globalization.CultureInfo.InvariantCulture);
         }
-
-        public void Dispose()
-        {
-            this.QrCodeData = null;
-        }
     }
 }

QRCoder/UnityQRCode.cs

@@ -3,11 +3,15 @@
 
 namespace QRCoder
 {
-    public class UnityQRCode : AbstractQRCode<Texture2D>
+    public class UnityQRCode : AbstractQRCode
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public UnityQRCode() { }
         public UnityQRCode(QRCodeData data) : base(data) {}
-
-        public override Texture2D GetGraphic(int pixelsPerModule)
+        
+        public Texture2D GetGraphic(int pixelsPerModule)
         {
             return this.GetGraphic(pixelsPerModule, Color.black, Color.white);
         }

QRCoder/XamlQRCode.cs

@@ -4,11 +4,16 @@
 
 namespace QRCoder
 {
-    public class XamlQRCode : AbstractQRCode<DrawingImage>, IDisposable
+    public class XamlQRCode : AbstractQRCode, IDisposable
     {
+        /// <summary>
+        /// Constructor without params to be used in COM Objects connections
+        /// </summary>
+        public XamlQRCode() { }
+
         public XamlQRCode(QRCodeData data) : base(data) { }
 
-        public override DrawingImage GetGraphic(int pixelsPerModule)
+        public DrawingImage GetGraphic(int pixelsPerModule)
         {
             return this.GetGraphic(pixelsPerModule, true);
         }
@@ -61,10 +66,5 @@ public DrawingImage GetGraphic(Size viewBox, Brush darkBrush, Brush lightBrush,
 
             return new DrawingImage(drawing);
         }
-
-        public void Dispose()
-        {
-            this.QrCodeData = null;
-        }
     }
 }