Show task status with subtle glow top of task panels

ShareX.HelpersLib/Helpers/MathHelpers.cs

@@ -132,16 +132,16 @@ public static int Random(int min, int max)
             }
         }
 
-        public static int RandomPick(params int[] nums)
-        {
-            return nums[Random(nums.Length - 1)];
-        }
-
         public static int RandomAdd(int num, int min, int max)
         {
             return num + Random(min, max);
         }
 
+        public static T RandomPick<T>(params T[] nums)
+        {
+            return nums[Random(nums.Length - 1)];
+        }
+
         /// <summary>
         /// Returns a random number between 0 and <c>max</c> (inclusive) generated with a cryptographic PRNG.
         /// </summary>

ShareX/Controls/TaskPanel.Designer.cs

@@ -31,7 +31,7 @@ protected override void Dispose(bool disposing)
         /// </summary>
         private void InitializeComponent()
         {
-            this.pThumbnail = new ShareX.HelpersLib.RoundedCornerPanel();
+            this.pThumbnail = new ShareX.TaskRoundedCornerPanel();
             this.pbProgress = new ShareX.HelpersLib.BlackStyleProgressBar();
             this.pbThumbnail = new System.Windows.Forms.PictureBox();
             this.lblFilename = new ShareX.HelpersLib.BlackStyleLabel();
@@ -115,7 +115,7 @@ private void InitializeComponent()
 
         #endregion
 
-        private HelpersLib.RoundedCornerPanel pThumbnail;
+        private ShareX.TaskRoundedCornerPanel pThumbnail;
         private HelpersLib.BlackStyleLabel lblFilename;
         private HelpersLib.BlackStyleProgressBar pbProgress;
         private System.Windows.Forms.PictureBox pbThumbnail;

ShareX/Controls/TaskPanel.cs

@@ -225,6 +225,14 @@ public void UpdateProgress()
             }
         }
 
+        public void UpdateStatus()
+        {
+            if (Task.Info != null)
+            {
+                pThumbnail.UpdateStatusColor(Task.Status);
+            }
+        }
+
         public void ClearThumbnail()
         {
             Image temp = pbThumbnail.Image;

ShareX/Controls/TaskRoundedCornerPanel.cs

@@ -0,0 +1,95 @@
+#region License Information (GPL v3)
+
+/*
+    ShareX - A program that allows you to take screenshots and share any file type
+    Copyright (c) 2007-2019 ShareX Team
+
+    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 ShareX.HelpersLib;
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Drawing.Drawing2D;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ShareX
+{
+    public class TaskRoundedCornerPanel : RoundedCornerPanel
+    {
+        public Color StatusColor { get; private set; } = Color.Transparent;
+
+        public void UpdateStatusColor(TaskStatus status)
+        {
+            Color previousStatusColor = StatusColor;
+
+            switch (status)
+            {
+                case TaskStatus.Completed:
+                case TaskStatus.Stopped:
+                    StatusColor = Color.CornflowerBlue;
+                    break;
+                case TaskStatus.Failed:
+                    StatusColor = Color.IndianRed;
+                    break;
+                case TaskStatus.History:
+                    StatusColor = Color.Transparent;
+                    break;
+                default:
+                    StatusColor = Color.PaleGreen;
+                    break;
+            }
+
+            if (previousStatusColor != StatusColor)
+            {
+                Invalidate();
+            }
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            base.OnPaint(e);
+
+            if (StatusColor.A > 0)
+            {
+                Graphics g = e.Graphics;
+
+                g.PixelOffsetMode = PixelOffsetMode.Half;
+
+                using (LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, ClientRectangle.Width, 1), Color.Black, Color.Black,
+                    LinearGradientMode.Horizontal))
+                {
+                    ColorBlend cb = new ColorBlend();
+                    cb.Positions = new float[] { 0, 0.3f, 0.7f, 1 };
+                    cb.Colors = new Color[] { Color.Transparent, StatusColor, StatusColor, Color.Transparent };
+                    brush.InterpolationColors = cb;
+
+                    using (Pen pen = new Pen(brush))
+                    {
+                        g.DrawLine(pen, new Point(0, 0), new Point(ClientRectangle.Width - 1, 0));
+                    }
+                }
+            }
+        }
+    }
+}

ShareX/Controls/TaskView.cs

@@ -143,5 +143,10 @@ public void UpdateProgressVisible(WorkerTask task, bool visible)
                 panel.ProgressVisible = visible;
             }
         }
+
+        public void UpdateStatus(WorkerTask task)
+        {
+            FindPanel(task)?.UpdateStatus();
+        }
     }
 }

ShareX/ShareX.csproj

@@ -167,6 +167,9 @@
     <Compile Include="Controls\TaskPanel.Designer.cs">
       <DependentUpon>TaskPanel.cs</DependentUpon>
     </Compile>
+    <Compile Include="Controls\TaskRoundedCornerPanel.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="Controls\TaskView.cs">
       <SubType>UserControl</SubType>
     </Compile>

ShareX/TaskManager.cs

@@ -265,6 +265,7 @@ private static void task_UploadStarted(WorkerTask task)
                 TaskView.UpdateFilename(task);
                 TaskView.UpdateThumbnail(task);
                 TaskView.UpdateProgressVisible(task, true);
+                TaskView.UpdateStatus(task);
             }
         }
 
@@ -360,6 +361,7 @@ private static void task_TaskCompleted(WorkerTask task)
                             TaskView.UpdateFilename(task);
                             TaskView.UpdateThumbnail(task);
                             TaskView.UpdateProgressVisible(task, false);
+                            TaskView.UpdateStatus(task);
                         }
 
                         ListViewItem lvi = FindListViewItem(task);