Added IDisposable to ShapeManager and BaseShape

ShareX.ScreenCaptureLib/Forms/RectangleRegionForm.cs

@@ -800,6 +800,11 @@ protected override Image GetOutputImage()
 
         protected override void Dispose(bool disposing)
         {
+            if (ShapeManager != null)
+            {
+                ShapeManager.Dispose();
+            }
+
             if (bmpBackgroundImage != null)
             {
                 bmpBackgroundImage.Dispose();

ShareX.ScreenCaptureLib/Shapes/BaseShape.cs

@@ -24,13 +24,14 @@ You should have received a copy of the GNU General Public License
 #endregion License Information (GPL v3)
 
 using ShareX.HelpersLib;
+using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Windows.Forms;
 
 namespace ShareX.ScreenCaptureLib
 {
-    public abstract class BaseShape
+    public abstract class BaseShape : IDisposable
     {
         protected const int MinimumSize = 3;
 
@@ -272,5 +273,9 @@ public virtual void OnNodePositionUpdate()
             Manager.ResizeNodes[(int)NodePosition.BottomLeft].Position = new Point(xStart, yEnd);
             Manager.ResizeNodes[(int)NodePosition.Left].Position = new Point(xStart, yMid);
         }
+
+        public virtual void Dispose()
+        {
+        }
     }
 }

ShareX.ScreenCaptureLib/Shapes/Drawing/ImageDrawingShape.cs

@@ -35,10 +35,7 @@ public class ImageDrawingShape : BaseDrawingShape
 
         public void SetImage(Image img, Point pos)
         {
-            if (Image != null)
+            Dispose();
-            {
-                Image.Dispose();
-            }
 
             Image = img;
 
@@ -52,5 +49,13 @@ public override void OnDraw(Graphics g)
                 g.DrawImage(Image, Rectangle);
             }
         }
+
+        public override void Dispose()
+        {
+            if (Image != null)
+            {
+                Image.Dispose();
+            }
+        }
     }
 }

ShareX.ScreenCaptureLib/Shapes/ShapeManager.cs

@@ -34,7 +34,7 @@ You should have received a copy of the GNU General Public License
 
 namespace ShareX.ScreenCaptureLib
 {
-    internal class ShapeManager
+    internal class ShapeManager : IDisposable
     {
         public List<BaseShape> Shapes { get; private set; } = new List<BaseShape>();
 
@@ -1544,6 +1544,7 @@ private void DeleteShape(BaseShape shape)
         {
             if (shape != null)
             {
+                shape.Dispose();
                 Shapes.Remove(shape);
                 DeselectShape(shape);
             }
@@ -1561,6 +1562,11 @@ private void DeleteIntersectShape()
 
         private void DeleteAllShapes()
         {
+            foreach (BaseShape shape in Shapes)
+            {
+                shape.Dispose();
+            }
+
             Shapes.Clear();
             DeselectCurrentShape();
         }
@@ -1730,5 +1736,10 @@ private void OnCurrentShapeTypeChanged(ShapeType shapeType)
                 CurrentShapeTypeChanged(shapeType);
             }
         }
+
+        public void Dispose()
+        {
+            DeleteAllShapes();
+        }
     }
 }