private void InitializeComponent()
{
this.pictureTracker = new PictureTracker();
this.scalablePictureBoxImpNew1 = new scalablePictureBoxImpNew();
this.SuspendLayout();
//
// pictureTracker
//
this.pictureTracker.BackColor = System.Drawing.Color.Lavender;
this.pictureTracker.Location = new System.Drawing.Point(550, 10);
this.pictureTracker.Name = "pictureTracker";
this.pictureTracker.Size = new System.Drawing.Size(137, 102);
this.pictureTracker.TabIndex = 0;
this.pictureTracker.ZoomRate = 0D;
this.pictureTracker.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureTracker_MouseDown);
this.pictureTracker.MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureTracker_MouseMove);
this.pictureTracker.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureTracker_MouseUp);
//
// scalablePictureBoxImpNew1
//
this.scalablePictureBoxImpNew1.AutoScroll = true;
this.scalablePictureBoxImpNew1.AutoScrollMinSize = new System.Drawing.Size(0, 8);
this.scalablePictureBoxImpNew1.CurrentImage = null;
this.scalablePictureBoxImpNew1.Dock = System.Windows.Forms.DockStyle.Fill;
this.scalablePictureBoxImpNew1.Document = null;
this.scalablePictureBoxImpNew1.ImagePreviewMode = PreviewMode.PAN;
this.scalablePictureBoxImpNew1.Location = new System.Drawing.Point(0, 0);
this.scalablePictureBoxImpNew1.Name = "scalablePictureBoxImpNew1";
this.scalablePictureBoxImpNew1.Size = new System.Drawing.Size(586, 417);
this.scalablePictureBoxImpNew1.TabIndex = 1;
//
// HTFImageViewerNew
//
this.Controls.Add(this.pictureTracker);
this.Controls.Add(this.scalablePictureBoxImpNew1);
this.Name = "HTFImageViewerNew";
this.Size = new System.Drawing.Size(586, 417);
this.ResumeLayout(false);
}
//Inertia is completed, we can reuse the object
public void Completed(PictureTracker pictureTracker)
{
pictureTracker.Picture = null;
_pictureTrackers.Push(pictureTracker);
}
//We remove the touchID from the tracking map since the fingers are no longer touch
//the picture
public void InInertia(PictureTracker pictureTracker)
{
//remove all touch id from the map
foreach (uint id in
(from KeyValuePair<uint, PictureTracker> entry in _pictureTrackerMap
where entry.Value == pictureTracker
select entry.Key).ToList())
{
_pictureTrackerMap.Remove(id);
}
}
private PictureTracker GetPictureTracker(uint touchId, System.Drawing.Point location)
{
PictureTracker pictureTracker;
//See if we already track the picture with the touchId
if (_pictureTrackerMap.TryGetValue(touchId, out pictureTracker))
return pictureTracker;
//Get the picture under the touch location
Picture picture = FindPicture(location);
if (picture == null)
return null;
//See if we track the picture with other ID
pictureTracker = (from KeyValuePair<uint, PictureTracker> entry in _pictureTrackerMap
where entry.Value.Picture == picture
select entry.Value).FirstOrDefault();
//First time
if (pictureTracker == null)
{
//take from stack
if (_pictureTrackers.Count > 0)
pictureTracker = _pictureTrackers.Pop();
else //create new
pictureTracker = new PictureTracker(this, _form);
pictureTracker.Picture = picture;
BringPictureToFront(picture);
}
//remember the corelation between the touch id and the picture
_pictureTrackerMap[touchId] = pictureTracker;
return pictureTracker;
}
