/// <summary>
/// Used to control dragging options
/// </summary>
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown (e);
if (backup != null && resized != null)
{
// Determine if the selected coord is on top of an annotation
selectedAnnote = GetAnnotationAt(e.X, e.Y);
if (selectedAnnote != null)
{
_annotations.Remove(selectedAnnote);
selectedAnnote.Location = new Point(e.X, e.Y);
}
else if (_allowDrag)
{
lmbDown = true;
dragStart = new Point(e.X, e.Y);
}
}
}
/// <summary>
/// Used to control dragging options
/// </summary>
protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp (e);
if (selectedAnnote != null)
{
_annotations.Add(selectedAnnote, true);
selectedAnnote = null;
}
else if (lmbDown && e.Button == MouseButtons.Right)
{
// Cancel the current drag
dragWindow = Rectangle.Empty;
lmbDown = false;
}
else if (lmbDown && e.Button == MouseButtons.Left)
{
// End the drag
lmbDown = false;
if (dragStart == dragEnd)
return;
dragEnd = new Point(e.X, e.Y);
if (dragStart != Point.Empty && ValidateDragWindowSize(dragEnd))
{
switch (_dragOptions)
{
case DragOptions.Prompt :
dragWindowSave = dragWindow;
cmnuPrompt.Show(this, dragEnd);
break;
case DragOptions.Copy :
Copy();
break;
case DragOptions.Zoom :
Zoom();
break;
}
}
dragWindow = Rectangle.Empty;
dragStart = Point.Empty;
dragEnd = Point.Empty;
}
}
/// <summary>
/// Removes an annotation from the collection
/// </summary>
/// <param name="annotation"></param>
/// <returns></returns>
public bool Remove(Annotation annotation)
{
foreach (Annotation annote in InnerList)
if (annote.Guid == annotation.Guid)
{
annotation.Changed -= new EventHandler(annotation_Changed);
InnerList.Remove(annote);
AnnotationsChanged(this, new EventArgs());
return true;
}
return false;
}
//public event menuclicked meventmenuclicked;
/// <summary>
/// Create a new extended picturebox
/// </summary>
public PictureBoxEx()
{
InitComponent();
base.SetStyle(ControlStyles.DoubleBuffer, true);
base.SetStyle(ControlStyles.UserPaint, true);
base.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
base.AutoScroll = true;
this.Size = new Size(200, 200);
this.Paint += new PaintEventHandler(PictureBoxEx_Paint);
_diagnosticMode = false;
_doubleClickRestore = true;
_borderStyle = BorderStyle.None;
_drawMode = InterpolationMode.Default;
// Init zoom fields
_currentZoom = 1.0F;
_defaultZoom = 1.0F;
_maximumZoom = 3.0F;
_minimumZoom = 0.10F;
// Init drag window fields
dashPattern = new Single[]{ 5, 2, 5, 2};
dragWindow = Rectangle.Empty;
dragStart = Point.Empty;
dragEnd = Point.Empty;
dragPen = new Pen(Color.Black, 1);
dragPen.DashStyle = DashStyle.Custom;
dragPen.DashPattern = dashPattern;
_dragOptions = DragOptions.Prompt;
_dragWindowMinimum = SystemInformation.DragSize;
lmbDown = false;
// Annotation fields
_annotations = new AnnotationCollection(this);
_annotations.AnnotationsChanged += new EventHandler(Annotations_AnnotationsChanged);
selectedAnnote = null;
generateTime = 0L;
drawTime = 0L;
setTime = 0L;
}
/// <summary>
/// Adds one or more annotations to the collection w/o adjustment
/// </summary>
/// <param name="annotations"></param>
public void AddRange(Annotation[] annotations)
{
foreach (Annotation annotation in annotations)
{
bool found = Remove(annotation);
InnerList.Add(annotation);
if (!found)
annotation.Changed += new EventHandler(annotation_Changed);
}
AnnotationsChanged(this, new EventArgs());
}
/// <summary>
/// Add an annotation to the collection
/// </summary>
/// <param name="text">The annotations desired text</param>
/// <param name="font">The annotations desired font</param>
/// <param name="color">The annotations desired color</param>
/// <param name="location">The annotations desired location</param>
/// <param name="adjustLocation">True if the annotation should be adjusted for the picturebox's current zoom</param>
/// <returns>The index of the newly added annotation</returns>
public int Add(string text, Font font, Color color, Point location, bool adjustLocation)
{
Annotation newAnnote = new Annotation(text, font, color, location);
newAnnote.Changed += new EventHandler(annotation_Changed);
return Add(newAnnote, adjustLocation);
}
/// <summary>
/// Add an annotation to the collection
/// </summary>
/// <param name="annotation">Annotation to be added</param>
/// <param name="adjustLocation">True if the annotation should be adjusted for the picturebox's current zoom</param>
/// <returns>The index of the newly added annotation</returns>
public int Add(Annotation annotation, bool adjustLocation)
{
bool found = Remove(annotation);
annotation.Changed += new EventHandler(annotation_Changed);
if (adjustLocation && owner != null)
{
float ratio = 1F / owner._currentZoom;
int adjustedX = Convert.ToInt32((annotation.X + -owner.AutoScrollPosition.X) * ratio);
int adjustedY = Convert.ToInt32((annotation.Y + -owner.AutoScrollPosition.Y) * ratio);
annotation.Location = new Point(adjustedX, adjustedY);
}
int index = InnerList.Add(annotation);
if (!found)
AnnotationsChanged(this, new EventArgs());
return index;
}
/// <summary>
/// Creates a new annotation collection
/// </summary>
public AnnotationCollection(PictureBoxEx owner, Annotation[] annotations)
: this(annotations)
{
this.owner = owner;
}
/// <summary>
/// Creates a new annotation collection
/// </summary>
public AnnotationCollection(Annotation[] annotations)
{
AnnotationsChanged += new EventHandler(OnAnnotationCollection_AnnotationsChanged);
foreach (Annotation annote in annotations)
Add(annote, false);
}