From dafcce6568b44457fe2e373d163a6b4d56e9866f Mon Sep 17 00:00:00 2001
From: Jaex <Jaex@users.noreply.github.com>
Date: Sun, 9 Aug 2015 02:15:46 +0300
Subject: [PATCH] Added region capture border glowing for non active regions

---
 .../Forms/RectangleRegion.cs                  |  8 +-
 .../RegionHelpers/GlowColorTimer.cs           | 77 +++++++++++++++++++
 .../ShareX.ScreenCaptureLib.csproj            |  1 +
 3 files changed, 85 insertions(+), 1 deletion(-)
 create mode 100644 ShareX.ScreenCaptureLib/RegionHelpers/GlowColorTimer.cs

diff --git a/ShareX.ScreenCaptureLib/Forms/RectangleRegion.cs b/ShareX.ScreenCaptureLib/Forms/RectangleRegion.cs
index 6d2d958ea..5749e38db 100644
--- a/ShareX.ScreenCaptureLib/Forms/RectangleRegion.cs
+++ b/ShareX.ScreenCaptureLib/Forms/RectangleRegion.cs
@@ -68,6 +68,8 @@ public Color CurrentColor
 
         #endregion Screen ruler
 
+        private GlowTimer glowTimer = new GlowTimer();
+
         public RectangleRegion()
         {
             AreaManager = new AreaManager(this);
@@ -183,6 +185,7 @@ public override void Prepare()
         protected override void Update()
         {
             base.Update();
+            glowTimer.Update();
             AreaManager.Update();
         }
 
@@ -206,7 +209,10 @@ protected override void Draw(Graphics g)
                         }
                     }
 
-                    g.DrawPath(borderPen, regionDrawPath);
+                    using (Pen glowingBorderPen = new Pen(glowTimer.GetColor()))
+                    {
+                        g.DrawPath(glowingBorderPen, regionDrawPath);
+                    }
 
                     /*
                     if (areas.Count > 1)
diff --git a/ShareX.ScreenCaptureLib/RegionHelpers/GlowColorTimer.cs b/ShareX.ScreenCaptureLib/RegionHelpers/GlowColorTimer.cs
new file mode 100644
index 000000000..3fefd583c
--- /dev/null
+++ b/ShareX.ScreenCaptureLib/RegionHelpers/GlowColorTimer.cs
@@ -0,0 +1,77 @@
+#region License Information (GPL v3)
+
+/*
+    ShareX - A program that allows you to take screenshots and share any file type
+    Copyright © 2007-2015 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 ShareX.HelpersLib;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+
+namespace ShareX.ScreenCaptureLib
+{
+    public class GlowTimer
+    {
+        public float Max = 1;
+        public float Min = 0;
+        public float Current = 0;
+
+        private Stopwatch timer;
+        private TimeSpan previousTime;
+        private int direction = 1;
+        private float increase = 0.75f;
+
+        public GlowTimer()
+        {
+            timer = Stopwatch.StartNew();
+        }
+
+        public void Update()
+        {
+            TimeSpan totalElapsed = timer.Elapsed;
+            TimeSpan elapsed = totalElapsed - previousTime;
+            previousTime = totalElapsed;
+
+            Current += (float)elapsed.TotalSeconds * increase * direction;
+
+            if (Current > Max)
+            {
+                Current = Max - (Current - Max);
+                direction = -1;
+            }
+            else if (Current < Min)
+            {
+                Current = Min + (Min - Current);
+                direction = 1;
+            }
+        }
+
+        public Color GetColor()
+        {
+            return ColorHelpers.Lerp(Color.FromArgb(30, 30, 30), Color.FromArgb(100, 100, 100), Current);
+        }
+    }
+}
\ No newline at end of file
diff --git a/ShareX.ScreenCaptureLib/ShareX.ScreenCaptureLib.csproj b/ShareX.ScreenCaptureLib/ShareX.ScreenCaptureLib.csproj
index 65a811a73..7adefb355 100644
--- a/ShareX.ScreenCaptureLib/ShareX.ScreenCaptureLib.csproj
+++ b/ShareX.ScreenCaptureLib/ShareX.ScreenCaptureLib.csproj
@@ -60,6 +60,7 @@
     <Compile Include="MonitorRegion.cs" />
     <Compile Include="MonitorRegionDefaultCreator.cs" />
     <Compile Include="RectangleAnnotateOptions.cs" />
+    <Compile Include="RegionHelpers\GlowColorTimer.cs" />
     <Compile Include="RegionHelpers\RegionInfo.cs" />
     <Compile Include="Screencast\FFmpegOptions.cs" />
     <Compile Include="Screencast\FFmpegHelper.cs" />