Image effects can be enabled/disabled using checkbox without requiring to remove effect, Added round corners effect

HelpersLib/Helpers/ImageHelpers.cs

@@ -291,6 +291,30 @@ public static Image AddCanvas(Image img, Padding margin)
             return bmp;
         }
 
+        public static Image RoundCorners(Image img, int cornerRadius)
+        {
+            Bitmap bmp = img.CreateEmptyBitmap();
+
+            using (Graphics g = Graphics.FromImage(bmp))
+            using (img)
+            {
+                g.SmoothingMode = SmoothingMode.AntiAlias;
+                g.PixelOffsetMode = PixelOffsetMode.HighQuality;
+
+                using (GraphicsPath gp = new GraphicsPath())
+                {
+                    gp.AddRoundedRectangle(new RectangleF(0, 0, img.Width, img.Height), cornerRadius);
+
+                    using (TextureBrush brush = new TextureBrush(img))
+                    {
+                        g.FillPath(brush, gp);
+                    }
+                }
+            }
+
+            return bmp;
+        }
+
         public static Image DrawReflection(Image img, int percentage, int maxAlpha, int minAlpha, int offset, bool skew, int skewSize)
         {
             Bitmap reflection = AddReflection(img, percentage, maxAlpha, minAlpha);

ImageEffectsLib/ImageEffect.cs

@@ -23,12 +23,21 @@
 
 #endregion License Information (GPL v3)
 
+using System.ComponentModel;
 using System.Drawing;
 
 namespace ImageEffectsLib
 {
     public abstract class ImageEffect
     {
+        [DefaultValue(true), Browsable(false)]
+        public bool Enabled { get; set; }
+
+        protected ImageEffect()
+        {
+            Enabled = true;
+        }
+
         public abstract Image Apply(Image img);
     }
 }

ImageEffectsLib/ImageEffectManager.cs

@@ -38,7 +38,7 @@ public static Image ApplyEffects(Image img, List<ImageEffect> imageEffects)
 
             if (imageEffects != null && imageEffects.Count > 0)
             {
-                result = imageEffects.Aggregate(result, (current, imageEffect) => imageEffect.Apply(current));
+                result = imageEffects.Where(x => x.Enabled).Aggregate(result, (current, imageEffect) => imageEffect.Apply(current));
             }
 
             return result;

ImageEffectsLib/ImageEffectsForm.Designer.cs

@@ -75,6 +75,7 @@ private void InitializeComponent()
             // 
             // lvEffects
             // 
+            this.lvEffects.CheckBoxes = true;
             this.lvEffects.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
             this.chEffect});
             this.lvEffects.FullRowSelect = true;
@@ -85,6 +86,7 @@ private void InitializeComponent()
             this.lvEffects.Name = "lvEffects";
             this.lvEffects.UseCompatibleStateImageBehavior = false;
             this.lvEffects.View = System.Windows.Forms.View.Details;
+            this.lvEffects.ItemChecked += new System.Windows.Forms.ItemCheckedEventHandler(this.lvEffects_ItemChecked);
             this.lvEffects.SelectedIndexChanged += new System.EventHandler(this.lvEffects_SelectedIndexChanged);
             this.lvEffects.KeyDown += new System.Windows.Forms.KeyEventHandler(this.lvEffects_KeyDown);
             // 

ImageEffectsLib/ImageEffectsForm.cs

@@ -78,6 +78,7 @@ private void AddAllEffectsToTreeView()
                 typeof(Flip),
                 typeof(Resize),
                 typeof(Rotate),
+                typeof(RoundCorners),
                 typeof(Scale),
                 typeof(Skew));
 
@@ -189,6 +190,7 @@ private void ClearEffects()
         private void AddEffect(ImageEffect imageEffect)
         {
             ListViewItem lvi = new ListViewItem(imageEffect.GetType().GetDescription());
+            lvi.Checked = imageEffect.Enabled;
             lvi.Tag = imageEffect;
 
             if (lvEffects.SelectedIndices.Count > 0)
@@ -297,6 +299,16 @@ private void lvEffects_SelectedIndexChanged(object sender, EventArgs e)
             }
         }
 
+        private void lvEffects_ItemChecked(object sender, ItemCheckedEventArgs e)
+        {
+            if (e.Item != null && e.Item.Tag is ImageEffect)
+            {
+                ImageEffect imageEffect = (ImageEffect)e.Item.Tag;
+                imageEffect.Enabled = e.Item.Checked;
+                UpdatePreview();
+            }
+        }
+
         private void lvEffects_KeyDown(object sender, KeyEventArgs e)
         {
             switch (e.KeyData)

ImageEffectsLib/ImageEffectsForm.resx

@@ -332,7 +332,7 @@
   </data>
   <data name="btnMoveUp.Text" xml:space="preserve">
     <value>↑</value>
-  <comment>@Invariant</comment></data>
+  </data>
   <data name="&gt;&gt;btnMoveUp.Name" xml:space="preserve">
     <value>btnMoveUp</value>
   </data>
@@ -359,7 +359,7 @@
   </data>
   <data name="btnMoveDown.Text" xml:space="preserve">
     <value>↓</value>
-  <comment>@Invariant</comment></data>
+  </data>
   <data name="&gt;&gt;btnMoveDown.Name" xml:space="preserve">
     <value>btnMoveDown</value>
   </data>

ImageEffectsLib/ImageEffectsLib.csproj

@@ -93,6 +93,7 @@
     <Compile Include="Adjustments\Inverse.cs" />
     <Compile Include="Adjustments\Saturation.cs" />
     <Compile Include="Manipulations\Crop.cs" />
+    <Compile Include="Manipulations\RoundCorners.cs" />
     <Compile Include="Manipulations\Skew.cs" />
     <Compile Include="Filters\Blur.cs" />
     <Compile Include="Filters\Shadow.cs" />

ImageEffectsLib/Manipulations/RoundCorners.cs

@@ -0,0 +1,60 @@
+#region License Information (GPL v3)
+
+/*
+    ShareX - A program that allows you to take screenshots and share any file type
+    Copyright (C) 2007-2014 ShareX Developers
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; either version 2
+    of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+    Optionally you can also view the license at <http://www.gnu.org/licenses/>.
+*/
+
+#endregion License Information (GPL v3)
+
+using HelpersLib;
+using System.ComponentModel;
+using System.Drawing;
+
+namespace ImageEffectsLib
+{
+    [Description("Round corners")]
+    internal class RoundCorners : ImageEffect
+    {
+        private int cornerRadius;
+
+        [DefaultValue(20)]
+        public int CornerRadius
+        {
+            get
+            {
+                return cornerRadius;
+            }
+            set
+            {
+                cornerRadius = value.Min(0);
+            }
+        }
+
+        public RoundCorners()
+        {
+            this.ApplyDefaultPropertyValues();
+        }
+
+        public override Image Apply(Image img)
+        {
+            return ImageHelpers.RoundCorners(img, CornerRadius);
+        }
+    }
+}