/// <summary>
/// Loads a sketch into this Panel. Possibly rescales the sketch to fit
/// the current display and/or resets this panel entirely. This method helps
/// both display recognition results and new sketch files.
/// </summary>
/// <param name="newSketch">The Skech to load</param>
/// <param name="rescale">True iff the sketch should be resized</param>
/// <param name="reset">True iff the panel should be reinitialized</param>
private void loadSketch(object newSketch, bool rescale, bool reset)
{
// Reinitialize the sketch panel if necessary
if (reset)
{
this.setDefaultInkPicProps();
}
// Load the Sketch into the InkPicture
inkPic.Enabled = false;
if (newSketch is string)
{
inkSketch.LoadSketch((string)newSketch);
}
else if (newSketch is Sketch.Sketch)
{
inkSketch.LoadSketch((Sketch.Sketch)newSketch);
}
// Rescale the ink if needed
if (rescale)
{
inkSketch.Recording = false;
// Move the Ink's origin to the upper top-left corner.
//inkPic.Ink.Strokes.Move(-1 * inkPic.Ink.GetBoundingBox().X + SketchPanelConstants.SketchPadding,
// -1 * inkPic.Ink.GetBoundingBox().Y + SketchPanelConstants.SketchPadding);
// Scale the sketch to fill the InkImage
Rectangle inkRect = inkPic.Ink.GetBoundingBox();
System.Drawing.Point rightBottom = new System.Drawing.Point(inkRect.Right, inkRect.Bottom);
using (Graphics g = inkPic.CreateGraphics())
{
inkPic.Renderer.InkSpaceToPixel(g, ref rightBottom);
}
System.Drawing.Point scalePt = new System.Drawing.Point(rightBottom.X - this.Left,
rightBottom.Y - this.Top);
// Scale the rendered strokes by the smallest (x or y) scaling factor
float xScale = (float)(this.Width - SketchPanelConstants.SketchPaddingScreen) / (float)scalePt.X;
float yScale = (float)(this.Height - SketchPanelConstants.SketchPaddingScreen) / (float)scalePt.Y;
float scale = xScale < yScale ? xScale : yScale;
inkPic.Renderer.Scale(scale, scale, true);
inkSketch.Recording = true;
}
inkPic.Enabled = true;
// Resize the InkPicture
this.resizeInkPicture();
}
/// <summary>
/// Loads a sketch into this Panel. Possibly rescales the sketch to fit
/// the current display and/or resets this panel entirely. This method helps
/// both display recognition results and new sketch files.
///
/// Precondition: newSketch is not null
/// </summary>
/// <param name="newSketch">The Skech to load</param>
/// <param name="rescale">True iff the sketch should be resized</param>
/// <param name="reset">True iff the panel should be reinitialized</param>
private void loadSketch(object newSketch, bool rescale, bool reset)
{
// Reinitialize the sketch panel if necessary
if (reset)
{
this.setDefaultInkPicProps();
}
// Load the Sketch into the InkPicture
inkPic.Enabled = false;
if (newSketch is string)
{
inkSketch.LoadSketch((string)newSketch);
}
else if (newSketch is Sketch.Sketch)
{
inkSketch.LoadSketch((Sketch.Sketch)newSketch);
}
else if (newSketch == null)
{
// We should never get here; fail quietly
Console.WriteLine("Error in SketchPanel#loadSketch(): "
+ "given null sketch. Breaking load operation");
return;
}
// Rescale the ink if needed
if (rescale)
{
ZoomToFit();
}
inkPic.Enabled = true;
// Resize the InkPicture
this.resizeInkPicture();
}