From ac4e197e22b67b4d1166d7acf32a448224e88597 Mon Sep 17 00:00:00 2001
From: jdpurcell <jdpurcell@gmail.com>
Date: Sun, 18 Jan 2015 19:44:51 +0000
Subject: [PATCH] Fix trackbars in Display config having different background
 color than their container (workaround applied only at runtime to avoid
 breaking designer).

---
 .../BizHawk.Client.EmuHawk.csproj             |  3 +++
 .../CustomControls/TransparentTrackbar.cs     | 20 +++++++++++++++++++
 .../config/DisplayConfigLite.Designer.cs      |  8 ++++----
 3 files changed, 27 insertions(+), 4 deletions(-)
 create mode 100644 BizHawk.Client.EmuHawk/CustomControls/TransparentTrackbar.cs

diff --git a/BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj b/BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj
index 8babca9ac3..492232d499 100644
--- a/BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj
+++ b/BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj
@@ -488,6 +488,9 @@
     <Compile Include="CustomControls\QuickProgressPopup.Designer.cs">
       <DependentUpon>QuickProgressPopup.cs</DependentUpon>
     </Compile>
+    <Compile Include="CustomControls\TransparentTrackbar.cs">
+      <SubType>Component</SubType>
+    </Compile>
     <Compile Include="CustomControls\ReadonlyCheckbox.cs">
       <SubType>Component</SubType>
     </Compile>
diff --git a/BizHawk.Client.EmuHawk/CustomControls/TransparentTrackbar.cs b/BizHawk.Client.EmuHawk/CustomControls/TransparentTrackbar.cs
new file mode 100644
index 0000000000..2ac7c1104f
--- /dev/null
+++ b/BizHawk.Client.EmuHawk/CustomControls/TransparentTrackbar.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Windows.Forms;
+
+namespace BizHawk.Client.EmuHawk
+{
+	public class TransparentTrackBar : TrackBar
+	{
+		protected override void OnCreateControl()
+		{
+			if (!DesignMode)
+			{
+				SetStyle(ControlStyles.SupportsTransparentBackColor, true);
+				if (Parent != null)
+					BackColor = Parent.BackColor;
+			}
+
+			base.OnCreateControl();
+		}
+	}
+}
diff --git a/BizHawk.Client.EmuHawk/config/DisplayConfigLite.Designer.cs b/BizHawk.Client.EmuHawk/config/DisplayConfigLite.Designer.cs
index 43f5ee8ed5..f4aafe814b 100644
--- a/BizHawk.Client.EmuHawk/config/DisplayConfigLite.Designer.cs
+++ b/BizHawk.Client.EmuHawk/config/DisplayConfigLite.Designer.cs
@@ -36,7 +36,7 @@
 			this.lblUserFilterName = new System.Windows.Forms.Label();
 			this.btnSelectUserFilter = new System.Windows.Forms.Button();
 			this.rbUser = new System.Windows.Forms.RadioButton();
-			this.tbScanlineIntensity = new System.Windows.Forms.TrackBar();
+			this.tbScanlineIntensity = new BizHawk.Client.EmuHawk.TransparentTrackBar();
 			this.rbNone = new System.Windows.Forms.RadioButton();
 			this.rbScanlines = new System.Windows.Forms.RadioButton();
 			this.rbHq2x = new System.Windows.Forms.RadioButton();
@@ -69,7 +69,7 @@
 			this.rbGDIPlus = new System.Windows.Forms.RadioButton();
 			this.tpMisc = new System.Windows.Forms.TabPage();
 			this.tabPage1 = new System.Windows.Forms.TabPage();
-			this.trackbarFrameSizeWindowed = new System.Windows.Forms.TrackBar();
+			this.trackbarFrameSizeWindowed = new BizHawk.Client.EmuHawk.TransparentTrackBar();
 			this.label9 = new System.Windows.Forms.Label();
 			this.cbStatusBarWindowed = new System.Windows.Forms.CheckBox();
 			this.cbCaptionWindowed = new System.Windows.Forms.CheckBox();
@@ -710,7 +710,7 @@
 		private System.Windows.Forms.RadioButton rbNone;
 		private System.Windows.Forms.RadioButton rbScanlines;
 		private System.Windows.Forms.RadioButton rbHq2x;
-		private System.Windows.Forms.TrackBar tbScanlineIntensity;
+		private BizHawk.Client.EmuHawk.TransparentTrackBar tbScanlineIntensity;
 		private System.Windows.Forms.CheckBox checkLetterbox;
 		private System.Windows.Forms.CheckBox checkPadInteger;
 		private System.Windows.Forms.GroupBox grpFinalFilter;
@@ -746,7 +746,7 @@
 		private System.Windows.Forms.TabPage tabPage1;
 		private System.Windows.Forms.CheckBox cbStatusBarWindowed;
 		private System.Windows.Forms.Label label9;
-		private System.Windows.Forms.TrackBar trackbarFrameSizeWindowed;
+		private BizHawk.Client.EmuHawk.TransparentTrackBar trackbarFrameSizeWindowed;
 		private System.Windows.Forms.CheckBox cbMenuWindowed;
 		private System.Windows.Forms.CheckBox cbCaptionWindowed;
 		private System.Windows.Forms.GroupBox groupBox4;