Implemented Tango.RemoteDesktop.

Implemented png 8 bit quantization.
Implemented RasterFrame bounds clipping.
Refactored VectorFrame to use indexed colors.

1 files changed, 91 insertions, 0 deletions

diff --git a/Software/Visual_Studio/Tango.RemoteDesktop/ScreenCaptureFrame.cs b/Software/Visual_Studio/Tango.RemoteDesktop/ScreenCaptureFrame.cs
new file mode 100644
index 000000000..75e7a961f
--- /dev/null
+++ b/Software/Visual_Studio/Tango.RemoteDesktop/ScreenCaptureFrame.cs
@@ -0,0 +1,91 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media.Imaging;
+using Tango.RemoteDesktop.Frames;
+
+namespace Tango.RemoteDesktop
+{
+    /// <summary>
+    /// Represents a screen capture frame for holding the original bitmap and difference frame.
+    /// </summary>
+    /// <typeparam name="TFrame">The type of the frame.</typeparam>
+    /// <seealso cref="Tango.RemoteDesktop.Frames.RasterFrame" />
+    /// <seealso cref="System.IDisposable" />
+    public class ScreenCaptureFrame<TFrame> : RasterFrame, IDisposable where TFrame : IFrame
+    {
+        private TFrame _diffFrame;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ScreenCaptureFrame{TFrame}"/> class.
+        /// </summary>
+        /// <param name="bitmap">The bitmap.</param>
+        public ScreenCaptureFrame(Bitmap bitmap) : base(bitmap)
+        {
+
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ScreenCaptureFrame{TFrame}"/> class.
+        /// </summary>
+        /// <param name="bitmap">The bitmap.</param>
+        /// <param name="diffFrame">The difference frame.</param>
+        public ScreenCaptureFrame(Bitmap bitmap, TFrame diffFrame) : this(bitmap)
+        {
+            _diffFrame = diffFrame;
+        }
+
+        /// <summary>
+        /// Gets a value indicating whether a difference frame is available.
+        /// </summary>
+        public bool DifferenceAvailable
+        {
+            get { return _diffFrame != null; }
+        }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the difference frame is available and contains any differences.
+        /// </summary>
+        private bool _hasDifference;
+        public bool HasDifference
+        {
+            get
+            {
+                return DifferenceAvailable && _hasDifference;
+            }
+            set { _hasDifference = value; }
+        }
+
+        /// <summary>
+        /// Returns the difference frame.
+        /// </summary>
+        /// <returns></returns>
+        /// <exception cref="InvalidOperationException">No difference is available at this point. Please use the 'DifferenceAvailable' property before attempting to get the difference.</exception>
+        public TFrame ToDifference()
+        {
+            if (!DifferenceAvailable)
+            {
+                throw new InvalidOperationException("No difference is available at this point. Please use the 'DifferenceAvailable' property before attempting to get the difference.");
+            }
+
+            return _diffFrame;
+        }
+
+        /// <summary>
+        /// Releases unmanaged and - optionally - managed resources.
+        /// </summary>
+        public override void Dispose()
+        {
+            base.Dispose();
+
+            if (_diffFrame != null)
+            {
+                _diffFrame.Dispose();
+            }
+        }
+    }
+}