private void AddOpaqueInkOverlay(double size, Image img)
{
//add the opaque ink overlay
if ((opaqueInk != null) && (opaqueInk.Strokes.Count > 0))
{
/// draw the slide data on a temporary graphics object in a temporary form
System.Windows.Forms.Form tempForm = new System.Windows.Forms.Form();
Graphics screenGraphics = tempForm.CreateGraphics();
DibGraphicsBuffer dib = new DibGraphicsBuffer();
Graphics tempGraphics = dib.RequestBuffer(screenGraphics, img.Width, img.Height);
//Add the background color
//First see if there is a Slide BG, if not, try the Deck. Otherwise, use transparent.
tempGraphics.DrawImage(img, 0, 0);
//System.Drawing.Drawing2D.GraphicsState oldState = tempGraphics.Save();
Microsoft.Ink.Renderer renderer = new Microsoft.Ink.Renderer();
Matrix transformation = new Matrix();
renderer.GetViewTransform(ref transformation);
transformation.Scale(((float)img.Width / 500f) * (float)size,
((float)img.Height / 500f) * (float)size);
renderer.SetViewTransform(transformation);
renderer.Draw(tempGraphics, opaqueInk.Strokes);
//tempGraphics.Restore(oldState);
Graphics toSave = Graphics.FromImage(img);
dib.PaintBuffer(toSave, 0, 0);
toSave.Dispose();
tempGraphics.Dispose();
dib.Dispose();
screenGraphics.Dispose();
tempForm.Dispose();
}
}
/// <summary>
/// Plays back ink data to a specified control
/// </summary>
/// <param name="destinationControl">
/// The control to play the Ink Data to.</param>
/// <param name="destinationRenderer">
/// The Ink Renderer used to convert ink data to display coordinates</param>
/// <param name="keepDestinationAspectRatio">
/// Specified whether to keep original aspect ratio of ink when scaling</param>
/// <param name="playbackRate">
/// The rate at which to play back the Ink Data</param>
protected void PlaybackRecordedData( Control destinationControl,
bool keepDestinationAspectRatio,
PacketPlaybackRate playbackRate,
System.Drawing.Drawing2D.Matrix iTrans)
{
if( null != PlaybackInk ) {
System.Drawing.Graphics g = destinationControl.CreateGraphics();
Microsoft.Ink.Renderer destinationRenderer = new Microsoft.Ink.Renderer();
destinationRenderer.SetViewTransform( iTrans );
// Set whether or not to keep ink aspect ratio in the display window
bool keepAspectRatio = keepDestinationAspectRatio;
// Declare scaling factors
float scaleFactorX = 1.0f;
float scaleFactorY = 1.0f;
// Get the size of the display window
System.Drawing.Size displayWindowSize = destinationControl.ClientSize;
// Get ink bounding box in ink space; convert the box's size to pixel;
System.Drawing.Rectangle inkBoundingBox = PlaybackInk.GetBoundingBox();
// Set the size and offset of the destination input
System.Drawing.Point inkBoundingBoxSize = new System.Drawing.Point(inkBoundingBox.Width, inkBoundingBox.Height);
// Convert the inkspace coordinate to pixels
destinationRenderer.InkSpaceToPixel(g, ref inkBoundingBoxSize);
// Get the offset of ink
System.Drawing.Point inkOffset = inkBoundingBox.Location;
// Determine what the scaling factor of the destination control is so
// we know how to correctly resize the ink data
getDisplayWindowScalingFactor(new System.Drawing.Size(inkBoundingBoxSize), displayWindowSize, keepAspectRatio, ref scaleFactorX, ref scaleFactorY);
// Iterate through all ink strokes and extract the packet data
foreach ( Microsoft.Ink.Stroke currentStroke in PlaybackInk.Strokes ) {
// Convert the stroke's packet data to INPUT structs
INPUT[] inputs = SendInputInterop.StrokeToInputs( currentStroke, destinationRenderer, g, scaleFactorX, scaleFactorY, destinationControl, inkOffset );
if ( null != inputs ) {
// Iterate through all the extracted INPUT data in order to send to destination control
for ( int i = 0; i < inputs.Length; i++ ) {
// Use the Win32 SendInput API to send the ink data point to the control
// Note that all playback will use the upper left of the destination control
// as the origin
SendInputInterop.SendInput( 1, new INPUT[] { inputs[i] }, System.Runtime.InteropServices.Marshal.SizeOf( inputs[i] ) );
// Determine the delay between packets (within a stroke)
switch( playbackRate ) {
case PacketPlaybackRate.Default:
default:
System.Threading.Thread.Sleep(5);
break;
case PacketPlaybackRate.Slow:
System.Threading.Thread.Sleep(100);
break;
case PacketPlaybackRate.Fast:
break;
}
}
}
// Reset the focus to the destination control in case it has been changed
if( destinationControl.InvokeRequired ) {
GenericVoidCallback func = new GenericVoidCallback( delegate { destinationControl.Focus(); } );
destinationControl.Invoke( func );
} else
destinationControl.Focus();
// Create a delay between each stroke
if ( 0 != InterStrokeDelay) {
System.Threading.Thread.Sleep((int)(InterStrokeDelay));
}
}
// dispose the graphics object
g.Dispose();
}
}
/// <summary>
/// Plays back ink data to a specified control
/// </summary>
/// <param name="destinationControl">
/// The control to play the Ink Data to.</param>
/// <param name="destinationRenderer">
/// The Ink Renderer used to convert ink data to display coordinates</param>
/// <param name="keepDestinationAspectRatio">
/// Specified whether to keep original aspect ratio of ink when scaling</param>
/// <param name="playbackRate">
/// The rate at which to play back the Ink Data</param>
protected void PlaybackRecordedData(Control destinationControl,
bool keepDestinationAspectRatio,
PacketPlaybackRate playbackRate,
System.Drawing.Drawing2D.Matrix iTrans)
{
if (null != PlaybackInk)
{
System.Drawing.Graphics g = destinationControl.CreateGraphics();
Microsoft.Ink.Renderer destinationRenderer = new Microsoft.Ink.Renderer();
destinationRenderer.SetViewTransform(iTrans);
// Set whether or not to keep ink aspect ratio in the display window
bool keepAspectRatio = keepDestinationAspectRatio;
// Declare scaling factors
float scaleFactorX = 1.0f;
float scaleFactorY = 1.0f;
// Get the size of the display window
System.Drawing.Size displayWindowSize = destinationControl.ClientSize;
// Get ink bounding box in ink space; convert the box's size to pixel;
System.Drawing.Rectangle inkBoundingBox = PlaybackInk.GetBoundingBox();
// Set the size and offset of the destination input
System.Drawing.Point inkBoundingBoxSize = new System.Drawing.Point(inkBoundingBox.Width, inkBoundingBox.Height);
// Convert the inkspace coordinate to pixels
destinationRenderer.InkSpaceToPixel(g, ref inkBoundingBoxSize);
// Get the offset of ink
System.Drawing.Point inkOffset = inkBoundingBox.Location;
// Determine what the scaling factor of the destination control is so
// we know how to correctly resize the ink data
getDisplayWindowScalingFactor(new System.Drawing.Size(inkBoundingBoxSize), displayWindowSize, keepAspectRatio, ref scaleFactorX, ref scaleFactorY);
// Iterate through all ink strokes and extract the packet data
foreach (Microsoft.Ink.Stroke currentStroke in PlaybackInk.Strokes)
{
// Convert the stroke's packet data to INPUT structs
INPUT[] inputs = SendInputInterop.StrokeToInputs(currentStroke, destinationRenderer, g, scaleFactorX, scaleFactorY, destinationControl, inkOffset);
if (null != inputs)
{
// Iterate through all the extracted INPUT data in order to send to destination control
for (int i = 0; i < inputs.Length; i++)
{
// Use the Win32 SendInput API to send the ink data point to the control
// Note that all playback will use the upper left of the destination control
// as the origin
SendInputInterop.SendInput(1, new INPUT[] { inputs[i] }, System.Runtime.InteropServices.Marshal.SizeOf(inputs[i]));
// Determine the delay between packets (within a stroke)
switch (playbackRate)
{
case PacketPlaybackRate.Default:
default:
System.Threading.Thread.Sleep(5);
break;
case PacketPlaybackRate.Slow:
System.Threading.Thread.Sleep(100);
break;
case PacketPlaybackRate.Fast:
break;
}
}
}
// Reset the focus to the destination control in case it has been changed
if (destinationControl.InvokeRequired)
{
GenericVoidCallback func = new GenericVoidCallback(delegate { destinationControl.Focus(); });
destinationControl.Invoke(func);
}
else
{
destinationControl.Focus();
}
// Create a delay between each stroke
if (0 != InterStrokeDelay)
{
System.Threading.Thread.Sleep((int)(InterStrokeDelay));
}
}
// dispose the graphics object
g.Dispose();
}
}
