bool OnTouchOrHoverEvent (MotionEvent e, bool isTouch)
{
MotionEventButtonState buttonState = e.ButtonState;
MotionEventButtonState pressedButtons = buttonState & ~mOldButtonState;
mOldButtonState = buttonState;
if ((pressedButtons & MotionEventButtonState.Secondary) != 0) {
// Advance color when the right mouse button or first stylus button
// is pressed.
AdvanceColor ();
}
PaintMode mode;
if ((buttonState & MotionEventButtonState.Tertiary) != 0) {
// Splat paint when the middle mouse button or second stylus button is pressed.
mode = PaintMode.Splat;
} else if (isTouch || (buttonState & MotionEventButtonState.Primary) != 0) {
// Draw paint when touching or if the primary button is pressed.
mode = PaintMode.Draw;
} else {
// Otherwise, do not paint anything.
return false;
}
MotionEventActions action = e.ActionMasked;
if (action == MotionEventActions.Down || action == MotionEventActions.Move
|| action == MotionEventActions.HoverMove) {
int N = e.HistorySize;
int P = e.PointerCount;
for (int i = 0; i < N; i++) {
for (int j = 0; j < P; j++) {
Paint (GetPaintModeForTool (e.GetToolType (j), mode),
e.GetHistoricalX (j, i),
e.GetHistoricalY(j, i),
e.GetHistoricalPressure (j, i),
e.GetHistoricalTouchMajor (j, i),
e.GetHistoricalTouchMinor (j, i),
e.GetHistoricalOrientation (j, i),
e.GetHistoricalAxisValue (Axis.Distance, j, i),
e.GetHistoricalAxisValue (Axis.Tilt, j, i));
}
}
for (int j = 0; j < P; j++) {
Paint (GetPaintModeForTool (e.GetToolType (j), mode),
e.GetX (j),
e.GetY (j),
e.GetPressure (j),
e.GetTouchMajor (j),
e.GetTouchMinor (j),
e.GetOrientation (j),
e.GetAxisValue (Axis.Distance, j),
e.GetAxisValue (Axis.Tilt, j));
}
mCurX = e.GetX ();
mCurY = e.GetY ();
}
return true;
}