private void presentationBtn_Click(object sender, EventArgs e)
{
if (!presentationMode)
{
presentationMode = true;
presentationBtn.Text = "Leave Presentation Mode";
try
{
pptApplication = Marshal.GetActiveObject("PowerPoint.Application") as PPT.Application;
}
catch
{
presentationMode = false;
presentationBtn.Text = "Presentation Mode";
MessageBox.Show("Please Launch PowerPoint First", "Error", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
}
AirNav.BalloonTipTitle = "Presentation Mode";
AirNav.BalloonTipText = "Actions will be optimized while presenting in PowerPoint.";
AirNav.ShowBalloonTip(2000);
}
else
{
presentationMode = false;
isPresenting = false;
presentationBtn.Text = "Presentation Mode";
}
}
void targettedTips()
{
Process[] processes = Process.GetProcesses();
if (processCount < processes.Length)
{
int randomizer = random.Next(1, 3);
switch (randomizer)
{
case 1:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Hold out three fingers for 2 seconds and then move your hand left or right to cycle through your active applications.";
AirNav.ShowBalloonTip(1000);
break;
case 2:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Close your fist, move it left or right and then open it to close an active application.";
AirNav.ShowBalloonTip(1000);
break;
default:
break;
}
processCount = processes.Length;
}
}
void scrollingTips()
{
int randomAmountOfTime = random.Next(1, 11);
string[] applications = { "chrome", "iexplore", "iexplorer", "firefox", "WINWORD", "AcroRdr32", "AcroRdr64" };
if (activeApplication == null)
{
foreach (string application in applications)
{
if (GetActiveFileNameTitle(application))
{
scrollingTipsTimer.Start();
activeApplication = GetActiveFileNameTitle();
}
}
}
if (scrollingTipsTimer.Elapsed >= new TimeSpan(0, randomAmountOfTime, 0))
{
if (GetActiveFileNameTitle(activeApplication))
{ // If the application is still active after a randomAmountOfTime
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "You can close your fist and move it up or down to start scrolling in this application.";
AirNav.ShowBalloonTip(1000);
}
scrollingTipsTimer.Reset();
activeApplication = null;
}
}
private void AirNavForm_FormClosing(object sender, FormClosingEventArgs e)
{
e.Cancel = true;
Hide();
AirNav.Text = "AirNav (Click to Restore)";
AirNav.BalloonTipTitle = "AirNav";
AirNav.BalloonTipText = "AirNav is Minimized to System Tray. Click to Restore.";
AirNav.ShowBalloonTip(3000);
}
void randomTips()
{
bool dontDoThisAgain = true;
for (int i = 1; i < 6; i++)
{
dontDoThisAgain = dontDoThisAgain && randomTipsShown[i];
}
if (!dontDoThisAgain)
{
if (randomTipsShown[0] == false)
{
randomTipsTimer.Start();
randomTipsShown[0] = true;
}
if (randomTipsTimer.Elapsed >= new TimeSpan(0, random.Next(1, 11), 0))
{
int randomizer = random.Next(1, 6);
if (randomTipsShown[randomizer] == true)
{
randomizer = random.Next(1, 6);
}
else
{
randomTipsTimer.Reset();
randomTipsShown[0] = false;
randomTipsShown[randomizer] = true;
switch (randomizer)
{
case 1:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Hold out three fingers for 2 seconds and move up or down to open the Start Menu. Continue this motion to return.";
AirNav.ShowBalloonTip(1000);
break;
case 2:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Close your fist for 2 seconds and open your hand to simulate a 'Right-Click'.";
AirNav.ShowBalloonTip(1000);
break;
case 3:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Hold out three fingers for 2 seconds and move up or down while in Presentation Mode to leave Presentation Mode.";
AirNav.ShowBalloonTip(1000);
break;
case 4:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Close your fist, move left or right and open your hand to navigate through your presentation while in Presentation Mode.";
AirNav.ShowBalloonTip(1000);
break;
case 5:
AirNav.BalloonTipTitle = "AirNav Tip";
AirNav.BalloonTipText = "Check out 'Glove Mode' in Settings if AirNav can't identify your hand properly.";
AirNav.ShowBalloonTip(1000);
break;
default:
break;
}
}
}
}
}
public void Navigate(int fingerCount, int currentX, int currentY)
{
if (pptApplication != null)
{
pptApplication.SlideShowBegin += pptApplication_SlideShowBegin;
pptApplication.SlideShowEnd += pptApplication_SlideShowEnd;
}
if (!disableTips && !presentationMode)
{
randomTips();
scrollingTips();
if (targettedTipsTimer.Elapsed >= new TimeSpan(0, 0, 30))
{
targettedTips();
targettedTipsTimer.Reset();
}
}
if ((fingerCount == 4 || fingerCount == 5))
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT") && threefingers)
{
StartLaser();
}
closedhand = false; // Hand is no longer closed
threefingers = false; // User can open hand to exit 'threefinger mode'
cycleApps = false;
if (!clicked && !rclicked && !isScrolling)
{
if (closingWindow)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
ReleaseLaser();
if (xDifference > 0)
{
System.Windows.Forms.SendKeys.Send("{LEFT}");
}
else if (xDifference < 0)
{
System.Windows.Forms.SendKeys.Send("{RIGHT}");
}
StartLaser();
}
else
{
AirNav.BalloonTipTitle = "Closing Application";
AirNav.BalloonTipText = "AirNav just attempted to close " + GetActiveFileNameTitle();
AirNav.ShowBalloonTip(2000);
System.Windows.Forms.SendKeys.Send("%{F4}");
}
closingWindow = false;
}
Cursor.Position = new Point(currentX * sensitivity, currentY * sensitivity);
outOfFrame = false; // Hand is no longer out of the frame
}
else if (clicked)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
ReleaseLaser();
DoMouseClick();
StartLaser();
}
else
{
DoMouseClick();
}
clicked = false;
yScience = false;
timer.Reset();
if (!disableTips && !presentationMode)
{
if (showTargettedTips)
{
showTargettedTips = false;
targettedTipsTimer.Start();
}
}
}
else if (rclicked)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
ReleaseLaser();
RightMouseClick();
StartLaser();
}
else
{
RightMouseClick();
}
rclicked = false;
timer.Reset();
}
else if (isScrolling)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
StartLaser();
}
isScrolling = false;
yScience = false;
timer.Reset();
}
}
if (fingerCount == 3 && !closedhand)
{
if (!cycleApps)
{
cycleApps = true;
cycleTimeOut.Start();
previousX = currentX;
previousY = currentY;
}
if (cycleTimeOut.Elapsed >= new TimeSpan(0, 0, 0, 0, 500) && cycleTimeOut.Elapsed <= new TimeSpan(0, 0, 0, 0, 800) && fingerCount == 3)
{
AirNav.BalloonTipTitle = "Three-Finger Mode";
AirNav.BalloonTipText = "Keep three fingers open in the same position for 2 seconds to enter Three-Finger Mode.";
AirNav.ShowBalloonTip(1000);
}
if (cycleTimeOut.Elapsed >= new TimeSpan(0, 0, 2) && !threefingers)
{
if (fingerCount == 3 && (Math.Abs(currentY - previousY)) <= 3 && (Math.Abs(currentX - previousX)) <= 3)
{
previousX = currentX;
previousY = currentY;
threefingers = true; // Program Mustn't Enter Closed Hand Case
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
ReleaseLaser();
}
AirNav.BalloonTipTitle = "Three-Finger Mode";
AirNav.BalloonTipText = "You are now in Three-Finger Mode. Open your hand to resume navigation.";
AirNav.ShowBalloonTip(1000);
}
else
{
cycleTimeOut.Reset();
cycleApps = false;
}
}
xDifference = currentX - previousX;
yDifference = currentY - previousY;
if (Math.Abs(yDifference) <= 5 && (Math.Abs(xDifference) % 5) == 0 && xDifference != 0 && threefingers)
{
if (xDifference > 0)
{
System.Windows.Forms.SendKeys.Send("%{ESC}");
cycleTimeOut.Reset();
}
else if (xDifference < 0)
{
System.Windows.Forms.SendKeys.Send("+(%{ESC})");
cycleTimeOut.Reset();
}
previousX = currentX;
previousY = currentY;
}
else if (Math.Abs(yDifference) >= 7 && Math.Abs(xDifference) <= 5 && threefingers)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
presentationMode = false;
isPresenting = false;
presentationBtn.Text = "Presentation Mode";
AirNav.BalloonTipTitle = "Presentation Mode";
AirNav.BalloonTipText = "You have just left Presentation Mode. To resume Presentation Mode, open AirNav and click on 'Presentation Mode'.";
AirNav.ShowBalloonTip(1000);
}
else
{
System.Windows.Forms.SendKeys.Send("^({ESC})");
}
previousX = currentX;
previousY = currentY;
cycleTimeOut.Reset();
cycleApps = false;
}
}
if (fingerCount <= 1 && !outOfFrame && !threefingers)
{
closedhand = true;
if (!clicked)
{
clicked = true;
}
if (!yScience)
{
previousX = currentX;
previousY = currentY;
timer.Start();
yScience = true;
}
if (timer.Elapsed > new TimeSpan(0, 0, 3))
{ // Hand has been out of the frame for too long
rclicked = false;
outOfFrame = true;
timer.Reset();
AirNav.BalloonTipTitle = "AirNav";
AirNav.BalloonTipText = "AirNav has detected that your hand is out of the scope of your webcam. Navigation will be resumed when your hand is back in scope.";
AirNav.ShowBalloonTip(2000);
}
else if (timer.Elapsed > new TimeSpan(0, 0, 2))
{
rclicked = true;
clicked = false;
}
else if (timer.Elapsed > new TimeSpan(0, 0, 1) && !isScrolling)
{
if (Math.Abs(currentY - previousY) <= 10 && Math.Abs(currentX - previousX) >= 10)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
xDifference = currentX - previousX;
}
closingWindow = true;
yScience = false;
}
else if (Math.Abs(currentX - previousX) <= 10 && Math.Abs(currentY - previousY) >= 5)
{
difference = currentY - previousY;
timer.Reset();
isScrolling = true;
AirNav.BalloonTipTitle = "Scrolling";
AirNav.BalloonTipText = "You can now scroll (up or down) while your fist is closed. Open your hand to resume navigation.";
AirNav.ShowBalloonTip(2000);
}
else
{
yScience = false;
}
previousX = currentX;
previousY = currentY;
clicked = false;
}
if (isScrolling)
{
if (presentationMode && isPresenting && GetActiveFileNameTitle("POWERPNT"))
{
ReleaseLaser();
}
MouseScroll((!invertScrolling) ? difference : (difference * -1));
difference = currentY - previousY;
previousY = currentY;
clicked = false;
rclicked = false;
}
}
}
public void ProcessFrameAndUpdateGUI(object sender, EventArgs e)
{
int fingerCount = 0;
Double contourArea = 0;
Double maxArea = 0;
imgFrame = WebCamFeed.QueryFrame();
sensitivity = sensitivitySlider.Value; //Defines scope for navigation ; changed from the SETTINGS page.
if (imgFrame == null)
{
return;
}
if (gloveMode.Checked) // Changes 'minRange' & 'maxRange' for Contrasting Backgrounds
{
gloveColor.Enabled = true;
}
else
{
gloveColor.Enabled = false;
}
Image <Ycc, Byte> currentYCrCbFrame = imgFrame.Convert <Ycc, byte>();
//Converts the original frame to a YCrCb frame for filtering.
Image <Gray, byte> skin = new Image <Gray, byte>(imgFrame.Width, imgFrame.Height);
//Stores Gray image of areas of interest
skin = currentYCrCbFrame.InRange(minRange, maxRange);
//Extracts areas within range for skin color
//Noise Filtering
StructuringElementEx rect_12 = new StructuringElementEx(10, 10, 5, 5, Emgu.CV.CvEnum.CV_ELEMENT_SHAPE.CV_SHAPE_RECT);
CvInvoke.cvErode(skin, skin, rect_12, 1);
StructuringElementEx rect_6 = new StructuringElementEx(6, 6, 3, 3, Emgu.CV.CvEnum.CV_ELEMENT_SHAPE.CV_SHAPE_RECT);
CvInvoke.cvDilate(skin, skin, rect_6, 2);
skin = skin.Flip(FLIP.HORIZONTAL);
skin = skin.SmoothGaussian(9);
imgFrame = imgFrame.Flip(FLIP.HORIZONTAL);
Contour <Point> contours = skin.FindContours();
Contour <Point> biggestContour = null;
while (contours != null)
{
contourArea = contours.Area;
if (contourArea > maxArea)
{
maxArea = contourArea;
biggestContour = contours;
}
contours = contours.HNext; //checks for the next contour
}
#region Convexity Defects Algorithm
if (biggestContour != null)
{
fingerCount = 0;
biggestContour = biggestContour.ApproxPoly(0.00025);
imgFrame.Draw(biggestContour, new Bgr(Color.LimeGreen), 2); //For debugging
Hull = biggestContour.GetConvexHull(ORIENTATION.CV_CLOCKWISE);
defects = biggestContour.GetConvexityDefacts(storage, ORIENTATION.CV_CLOCKWISE);
imgFrame.DrawPolyline(Hull.ToArray(), true, new Bgr(0, 0, 256), 2); //For debugging
box = biggestContour.GetMinAreaRect();
defectArray = defects.ToArray();
for (int i = 0; i < defects.Total; i++)
{
PointF startPoint = new PointF((float)defectArray[i].StartPoint.X,
(float)defectArray[i].StartPoint.Y);
PointF depthPoint = new PointF((float)defectArray[i].DepthPoint.X,
(float)defectArray[i].DepthPoint.Y);
PointF endPoint = new PointF((float)defectArray[i].EndPoint.X,
(float)defectArray[i].EndPoint.Y);
CircleF startCircle = new CircleF(startPoint, 5f);
CircleF depthCircle = new CircleF(depthPoint, 5f);
CircleF endCircle = new CircleF(endPoint, 5f);
if ((startCircle.Center.Y < box.center.Y || depthCircle.Center.Y < box.center.Y) &&
(startCircle.Center.Y < depthCircle.Center.Y) &&
(Math.Sqrt(Math.Pow(startCircle.Center.X - depthCircle.Center.X, 2) +
Math.Pow(startCircle.Center.Y - depthCircle.Center.Y, 2)) >
box.size.Height / 6.5))
{
fingerCount++;
}
}
}
#endregion
MCvMoments moment = new MCvMoments();
try
{
moment = biggestContour.GetMoments();
}
catch (NullReferenceException except)
{
AirNav.BalloonTipTitle = "AirNav";
AirNav.BalloonTipText = "Contour Not Found: " + except.Message;
AirNav.ShowBalloonTip(1000);
return;
}
try
{
CvInvoke.cvMoments(biggestContour, ref moment, 0);
}
catch (Exception)
{
throw;
}
double m00 = CvInvoke.cvGetSpatialMoment(ref moment, 0, 0);
double m10 = CvInvoke.cvGetSpatialMoment(ref moment, 1, 0);
double m01 = CvInvoke.cvGetSpatialMoment(ref moment, 0, 1);
int currentX = Convert.ToInt32(m10 / m00) / 10;
int currentY = Convert.ToInt32(m01 / m00) / 10;
// Current coordinates of the center of the palm
if (showCoordinates)
{
coordinatesTextBox.Text = "X: " + currentX.ToString() + " Y: " + currentY.ToString();
}
if (fingerCount >= 4 && !started && startPressed)
{
started = true;
}
if (started)
{
Navigate(fingerCount, currentX, currentY);
}
display.SetZoomScale(0.5, new Point(100, 100));
if (displayToggle)
{
display.Image = skin;
}
else
{
display.Image = imgFrame;
}
}