public void RefreshZoom()
{
magnifier.Stop();
zoomer = new ZoomLens();
magnifier = CreateMagnifier();
zoomer.ResetZoomLens();
magnifier.ResetZoomValue();
EnterWaitState();
}
//The action state is responsible for completing each action that must take place during each state
public void Action()
{
switch (SystemFlags.currentState)
{
case SystemState.Wait:
scrollWorker.stopScroll();
if (SystemFlags.hasSelectedButtonColourBeenReset == false)
{
toolbar.resetButtonsColor();
SystemFlags.hasSelectedButtonColourBeenReset = true;
}
break;
case SystemState.ActionButtonSelected:
scrollWorker.stopScroll();
if (!SystemFlags.fixationRunning)
{
fixationWorker.StartDetectingFixation();
SystemFlags.fixationRunning = true;
}
if (Program.readSettings.selectionFeedback) //don't show the crosshair if selection feedback is off
{
zoomer.Start();
zoomer.Show();
zoomer.CrossHairPos = fixationWorker.getXY();
}
break;
case SystemState.Zooming:
scrollWorker.stopScroll();
fixationWorker.IsZoomerFixation(true);
if (SystemFlags.shortCutKeyPressed) //if a user defined click key is pressed
{
fixationPoint = shortCutKeyWorker.GetXY();
SystemFlags.shortCutKeyPressed = false;
}
else
{
fixationPoint = fixationWorker.getXY(); //get the location the user looked
}
magnifier.Timer.Enabled = true;
// magnifier.UpdatePosition(fixationPoint);
// Give the magnifier the point on screen to magnify
magnifier.FixationPoint = fixationPoint;
Point p1 = Utils.DividePoint(magnifier.Offset, magnifier.MagnifierDivAmount());
Point p2 = Utils.DividePoint(magnifier.SecondaryOffset, magnifier.MagnifierDivAmount());
Point o = Utils.SubtractPoints(p1, p2);
zoomer.Offset = o; // This initiate's the timer for drawing of the user feedback image
zoomer.Start();
zoomer.Show();
zoomer.CrossHairPos = magnifier.GetLookPosition();
//disable neccesary flags
SystemFlags.hasGaze = false;
SystemFlags.fixationRunning = false;
break;
case SystemState.ZoomWait: //waiting for user to fixate
if (!SystemFlags.fixationRunning)
{
fixationWorker.StartDetectingFixation();
SystemFlags.fixationRunning = true;
}
zoomer.CrossHairPos = magnifier.GetLookPosition();
//SetZoomerOffset();
break;
case SystemState.ApplyAction: //the fixation on the zoom lens has been detected
fixationPoint = fixationWorker.getXY();
//SetZoomerOffset();
fixationPoint.X += zoomer.Offset.X;
fixationPoint.Y += zoomer.Offset.Y;
fixationPoint = magnifier.GetLookPosition();
zoomer.ResetZoomLens(); //hide the lens
// MessageBox.Show(magnifier.SecondaryOffset.X + " " + magnifier.SecondaryOffset.Y);
//Set the magnification factor back to initial value
// This is done so that a "dynamic zoom in" feature can be
// implemented in the future
magnifier.ResetZoomValue();
magnifier.Stop();
//execute the appropriate action
if (SystemFlags.actionToBePerformed == ActionToBePerformed.LeftClick)
{
VirtualMouse.LeftMouseClick(fixationPoint.X, fixationPoint.Y);
}
else if (SystemFlags.actionToBePerformed == ActionToBePerformed.RightClick)
{
VirtualMouse.RightMouseClick(fixationPoint.X, fixationPoint.Y);
}
else if (SystemFlags.actionToBePerformed == ActionToBePerformed.DoubleClick)
{
VirtualMouse.LeftDoubleClick(fixationPoint.X, fixationPoint.Y);
}
else if (SystemFlags.actionToBePerformed == ActionToBePerformed.Scroll)
{
SystemFlags.currentState = SystemState.ScrollWait;
SystemFlags.scrolling = true;
VirtualMouse.SetCursorPos(fixationPoint.X, fixationPoint.Y);
scrollWorker.StartScroll();
}
else if (SystemFlags.actionToBePerformed == ActionToBePerformed.MicInput)
{
if (Program.readSettings.micInput != Constants.KEY_FUNCTION_UNASSIGNED_MESSAGE)
{
if (!micIsOn)
{
VirtualMouse.LeftMouseClick(fixationPoint.X, fixationPoint.Y);
SendKeys.Send(Program.readSettings.micInput);
SystemFlags.hasSelectedButtonColourBeenReset = true;
micIsOn = true;
}
else
{
SendKeys.Send(Program.readSettings.micInputOff);
SystemFlags.hasSelectedButtonColourBeenReset = false;
micIsOn = false;
}
}
}
fixationWorker = new FixationDetection();
break;
}
}
