From 65b76df0f7517e52000908055cc98c0ad5bd9c67 Mon Sep 17 00:00:00 2001
From: Florian Kuepper <florian.kuepper@googlemail.com>
Date: Fri, 27 Jul 2012 12:17:00 +0200
Subject: [PATCH] Added DrawColorReflection-Method. Buggy with OpenGL - Need
 some help!

---
 Vocaluxe/Base/CDraw.cs            |  5 ++++
 Vocaluxe/Lib/Draw/CDirect3D.cs    | 13 +++++++++
 Vocaluxe/Lib/Draw/CDrawWinForm.cs |  5 ++++
 Vocaluxe/Lib/Draw/COpenGL.cs      | 48 +++++++++++++++++++++++++++++++
 Vocaluxe/Lib/Draw/IDraw.cs        |  1 +
 5 files changed, 72 insertions(+)

diff --git a/Vocaluxe/Base/CDraw.cs b/Vocaluxe/Base/CDraw.cs
index d1743b0a..e468162e 100644
--- a/Vocaluxe/Base/CDraw.cs
+++ b/Vocaluxe/Base/CDraw.cs
@@ -117,6 +117,11 @@ namespace Vocaluxe.Base
             _Draw.DrawColor(color, rect);
         }
 
+        public static void DrawColorReflection(SColorF color, SRectF rect, float space, float height)
+        {
+            _Draw.DrawColorReflection(color, rect, space, height);
+        }
+
         public static void ClearScreen()
         {
             _Draw.ClearScreen();
diff --git a/Vocaluxe/Lib/Draw/CDirect3D.cs b/Vocaluxe/Lib/Draw/CDirect3D.cs
index 3141d237..492834c9 100644
--- a/Vocaluxe/Lib/Draw/CDirect3D.cs
+++ b/Vocaluxe/Lib/Draw/CDirect3D.cs
@@ -836,6 +836,19 @@ namespace Vocaluxe.Lib.Draw
         {
             DrawTexture(_BlankTexture, rect, color);
         }
+
+        /// <summary>
+        /// Draws reflection of a colored rectangle
+        /// </summary>
+        /// <param name="color">The color in which the rectangle will be drawn in</param>
+        /// <param name="rect">The coordinates in a SRectF struct</param>
+        /// <param name="space">The space between the texture and the reflection</param>
+        /// <param name="height">The height of the reflection</param>
+        public void DrawColorReflection(SColorF color, SRectF rect, float space, float height)
+        {
+            DrawTextureReflection(_BlankTexture, rect, color, rect, space, height);
+        }
+            
         #endregion Basic Draw Methods
         #region Textures
         #region adding
diff --git a/Vocaluxe/Lib/Draw/CDrawWinForm.cs b/Vocaluxe/Lib/Draw/CDrawWinForm.cs
index c94f0073..51cc0c4f 100644
--- a/Vocaluxe/Lib/Draw/CDrawWinForm.cs
+++ b/Vocaluxe/Lib/Draw/CDrawWinForm.cs
@@ -352,6 +352,11 @@ namespace Vocaluxe.Lib.Draw
 
         }
 
+        public void DrawColorReflection(SColorF color, SRectF rect, float space, float height)
+        {
+
+        }
+
         public STexture AddTexture(Bitmap bmp)
         {
             Bitmap bmp2 = new Bitmap(bmp);
diff --git a/Vocaluxe/Lib/Draw/COpenGL.cs b/Vocaluxe/Lib/Draw/COpenGL.cs
index 54ee1fcf..0ae4ad0f 100644
--- a/Vocaluxe/Lib/Draw/COpenGL.cs
+++ b/Vocaluxe/Lib/Draw/COpenGL.cs
@@ -661,6 +661,54 @@ namespace Vocaluxe.Lib.Draw
             GL.Disable(EnableCap.Blend);
         }
 
+        public void DrawColorReflection(SColorF color, SRectF rect, float space, float height)
+        {
+            float rx1 = rect.X;
+            float rx2 = rect.X + rect.W;
+            float ry1 = rect.Y + rect.H + space;
+            float ry2 = rect.Y + rect.H + space + height;
+
+            if (rx1 < rect.X)
+                rx1 = rect.X;
+
+            if (rx2 > rect.X + rect.W)
+                rx2 = rect.X + rect.W;
+
+            if (ry1 < rect.Y + space)
+                ry1 = rect.Y + space;
+
+            if (ry2 > rect.Y + rect.H + space + height)
+                ry2 = rect.Y + rect.H + space + height;
+
+            GL.Enable(EnableCap.Blend);
+
+            if (rect.Rotation != 0f)
+            {
+                GL.Translate(0.5f, 0.5f, 0);
+                GL.Rotate(-rect.Rotation, 0f, 0f, 1f);
+                GL.Translate(-0.5f, -0.5f, 0);
+            }
+
+            GL.Begin(BeginMode.Quads);
+
+            GL.Color4(color.R, color.G, color.B, color.A * CGraphics.GlobalAlpha);
+            GL.Vertex3(rx2, ry1, rect.Z + CGraphics.ZOffset);
+
+            GL.Color4(color.R, color.G, color.B, 0f);
+            GL.Vertex3(rx2, ry2, rect.Z + CGraphics.ZOffset);
+
+            GL.Color4(color.R, color.G, color.B, 0f);
+            GL.Vertex3(rx1, ry2, rect.Z + CGraphics.ZOffset);
+
+            GL.Color4(color.R, color.G, color.B, color.A * CGraphics.GlobalAlpha);
+            GL.Vertex3(rx1, ry1, rect.Z + CGraphics.ZOffset);
+
+            GL.End();
+
+            GL.Disable(EnableCap.Blend);
+
+        }
+
         #endregion Basic Draw Methods
 
         #region Textures
diff --git a/Vocaluxe/Lib/Draw/IDraw.cs b/Vocaluxe/Lib/Draw/IDraw.cs
index 2f8bbc82..9a7bf1d6 100644
--- a/Vocaluxe/Lib/Draw/IDraw.cs
+++ b/Vocaluxe/Lib/Draw/IDraw.cs
@@ -125,6 +125,7 @@ namespace Vocaluxe.Lib.Draw
         // Basic Draw Methods
         void DrawLine(int a, int r, int g, int b, int w, int x1, int y1, int x2, int y2);
         void DrawColor(SColorF color, SRectF rect);
+        void DrawColorReflection(SColorF color, SRectF rect, float space, float height);
 
         void ClearScreen();
         STexture CopyScreen();