/// <summary>
/// Decode object message
/// </summary>
private void DecodeObjMessage(ref byte[] data)
{
// Fill-in object message
this.touch.filldata(ref data);
// Object T9 messge valid id number equal and large 3
if (this.touch.get_id >= 3 && this.touch.get_id < this.touch.skip_id)
{
bool IsPrimaryContact = ((this.touch.get_id & 0x03) == 1);
int id = this.touch.get_id;
// Touch pad coordination get back
int x = (this.touch.get_t9_x);
int y = (this.touch.get_t9_y);
int LocationX;
int LocationY;
// Touch point coordinates and contact size is in of a pixel; convert it to pixels.
// Also convert screen to client coordinates.
Point pt = PointToClient(new Point(x, y));
LocationX = pt.X;
LocationY = pt.Y;
switch (this.touch.get_t9_event)
{
case T9_TOUCH_MOVE:
{
// Find the stroke in the collection of the strokes in drawing.
Stroke stroke = ActiveStrokes.Get(id);
// Add contact point to the stroke
stroke.Add(new Point(LocationX, LocationY));
// Partial redraw: only the last line segment
Graphics g = this.CreateGraphics();
stroke.DrawLast(g);
}
break;
case T9_TOUCH_DOWN:
{
// Create new stroke, add point and assign a color to it.
Stroke newStroke = new Stroke();
newStroke.Color = touchColor.GetColor(IsPrimaryContact);
newStroke.Id = id;
// Add new stroke to the collection of strokes in drawing.
ActiveStrokes.Add(newStroke);
DebugLocationXY(id, "d", LocationX, LocationY);
BoundaryCheck(id, 1, LocationX, LocationY);
}
break;
case T9_TOUCH_UP:
{
// Find the stroke in the collection of the strokes in drawing
// and remove it from this collection.
Stroke stroke = ActiveStrokes.Remove(id);
// Add this stroke to the collection of finished strokes.
FinishedStrokes.Add(stroke);
// Request full redraw.
Invalidate();
DebugLocationXY(id, "u", LocationX, LocationY);
BoundaryCheck(id, 0, LocationX, LocationY);
}
break;
}
}
// Object T100 valid id number equal and large 41
// Skip id 39 not used
if (this.touch.get_id > this.touch.skip_id)
{
bool IsPrimaryContact = ((this.touch.get_id & 0x01) == 1);
int id = this.touch.get_id;
// The minimum and maximun values of the absolutely coordination
// define the bounds of the activate area of the device in device-specific surface.
int minX = 0; // ABS min x
int minY = 0; // ABS min y
int maxX = 1365; // ABS max x
int maxY = 767; // ABS max y
int displayWidth = 1024; // target resolution x
int displayHeight = 638; // target resolution y
int displayX = ((this.touch.get_x) - minX) * displayWidth / (maxX - minX + 1);
int displayY = ((this.touch.get_y) - minY) * displayHeight / (maxY - minY + 1);
int LocationX;
int LocationY;
// touch point coordinates and contact size is in of a pixel; convert it to pixels.
// Also convert screen to client coordinates.
Point pt = PointToClient(new Point(displayX, displayY));
LocationX = pt.X;
LocationY = pt.Y;
switch (this.touch.get_event)
{
case TOUCH_MOVE:
{
// Find the stroke in the collection of the strokes in drawing.
Stroke stroke = ActiveStrokes.Get(id);
// Add contact point to the stroke
stroke.Add(new Point(LocationX, LocationY));
// Partial redraw: only the last line segment
Graphics g = this.CreateGraphics();
stroke.DrawLast(g);
}
break;
case TOUCH_DOWN:
{
// Create new stroke, add point and assign a color to it.
Stroke newStroke = new Stroke();
newStroke.Color = touchColor.GetColor(IsPrimaryContact);
newStroke.Id = id;
// Add new stroke to the collection of strokes in drawing.
ActiveStrokes.Add(newStroke);
//DebugLocationXY(id, "d", LocationX, LocationY);
BoundaryCheck(id, 1, LocationX, LocationY);
}
break;
case TOUCH_UP:
{
// Find the stroke in the collection of the strokes in drawing
// and remove it from this collection.
Stroke stroke = ActiveStrokes.Remove(id);
// Add this stroke to the collection of finished strokes.
FinishedStrokes.Add(stroke);
//DebugLocationXY(id, "u", LocationX, LocationY);
if (false == BoundaryCheck(id, 0, LocationX, LocationY))
{
// Request full redraw.
Invalidate();
}
}
break;
}
}
}
