/// <summary>
/// Performs custom actions on adaptable control MouseMove events; base method should
/// be called first</summary>
/// <param name="sender">Adaptable control</param>
/// <param name="e">Mouse event args</param>
protected override void OnMouseMove(object sender, MouseEventArgs e)
{
base.OnMouseMove(sender, e);
if (e.Button == MouseButtons.None)
{
AnnotationHitEventArgs hitRecord = Pick(CurrentPoint);
if ((hitRecord.Annotation != null && hitRecord.Label == null) &&
AdaptedControl.Cursor == Cursors.Default)
{
AdaptedControl.Cursor = Cursors.SizeAll;
}
}
}
/// <summary>
/// Performs hit test for a point, in client coordinates</summary>
/// <param name="p">Pick point, in client coordinates</param>
/// <returns>Hit record for a point, in client coordinates</returns>
DiagramHitRecord IPickingAdapter2.Pick(Point p)
{
if (m_annotatedDiagram != null && !PickingDisabled)
{
if (m_transformAdapter != null)
p = GdiUtil.InverseTransform(m_transformAdapter.Transform, p);
foreach (IAnnotation annotation in m_annotatedDiagram.Annotations.Reverse())
{
TextEditor textEditor;
m_annotationEditors.TryGetValue(annotation, out textEditor);
Rectangle bounds = GetBounds(annotation);
if (bounds.IsEmpty && textEditor == null)
continue;
var inflated = bounds;
int tolerance = m_theme.PickTolerance;
inflated.Inflate(tolerance, tolerance);
if (!inflated.Contains(p)) continue;
Rectangle contentRect = bounds;
contentRect.X += Margin.Left;
contentRect.Y += Margin.Right;
contentRect.Size -= Margin.Size;
if (contentRect.Contains(p))
{
// check scroll bar
if (textEditor != null && textEditor.VerticalScrollBarVisibe)
{
var scrollbarRect = new Rectangle(bounds.Right - Margin.Right - ScrollBarWidth - 2 * ScrollBarMargin, bounds.Y,
ScrollBarWidth + 2 * ScrollBarMargin, bounds.Height);
if (scrollbarRect.Contains(p))
return new AnnotationHitEventArgs(annotation, new DiagramScrollBar(annotation, Orientation.Vertical));
}
//var textBounds = new Rectangle(contentRect.X, contentRect.Y,
// contentRect.Width, contentRect.Height);
var textBounds = contentRect;
DiagramLabel label = new DiagramLabel(textBounds, TextFormatFlags.LeftAndRightPadding);
PointF origin = textEditor != null ?
new PointF(contentRect.X, contentRect.Y - textEditor.GetLineYOffset(textEditor.TopLine))
: contentRect.Location;
var result = new AnnotationHitEventArgs(annotation, label);
result.Position = new PointF(p.X - origin.X, p.Y - origin.Y);
return result;
}
//// check titlebar
//var titlebarRect = new RectangleF(bounds.Left + 2 * tolerance, bounds.Y - tolerance,
// bounds.Width - 4 * tolerance, Margin.Top + tolerance);
//if (titlebarRect.Contains(p))
//{
// return new AnnotationHitEventArgs(annotation, new DiagramTitleBar(annotation));
//}
// margin between inflated bounds and content bound.
int leftPad = contentRect.X - inflated.X;
int rightPad = inflated.Right - contentRect.Right;
int topPad = contentRect.Y - inflated.Y;
int bottomPad = inflated.Bottom - contentRect.Bottom;
// lower right
var corner = new Rectangle(contentRect.Right, contentRect.Bottom, rightPad, bottomPad);
if (corner.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.LowerRightCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// upper left
corner = new Rectangle(inflated.X, inflated.Y, leftPad, topPad);
if (corner.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.UpperLeftCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// upper right
corner = new Rectangle(contentRect.Right, inflated.Y, rightPad, topPad);
if (corner.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.UpperRightCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// lower left.
corner = new Rectangle(inflated.X, contentRect.Bottom, leftPad, bottomPad);
if (corner.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.LowerLeftCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// right border.
if (p.X >= contentRect.Right)
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Right
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// bottom border
if (p.Y >= contentRect.Bottom)
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Bottom
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// left border
if (p.X <= contentRect.X)
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Left
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// top border
if (p.Y <= contentRect.Y)
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Top
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
}
}
return new AnnotationHitEventArgs();
}
/// <summary>
/// Performs a pick operation on the diagram annotations</summary>
/// <param name="p">Picking point</param>
/// <returns>Information about which annotation, if any, was hit by point</returns>
public AnnotationHitEventArgs Pick(Point p)
{
if (m_annotatedDiagram != null)
{
if (m_transformAdapter != null)
p = GdiUtil.InverseTransform(m_transformAdapter.Transform, p);
foreach (IAnnotation annotation in m_annotatedDiagram.Annotations.Reverse())
{
Rectangle bounds = GetBounds(annotation);
if (bounds.IsEmpty)
continue;
var inflated = bounds;
int tolerance = m_theme.PickTolerance;
inflated.Inflate(tolerance, tolerance);
if (inflated.Contains(p) && m_annotationEditors.ContainsKey(annotation))
{
// check titlebar
var titlebarRect = new RectangleF(bounds.Left + 2 * tolerance, bounds.Y - tolerance,
bounds.Width - 4 * tolerance, Margin.Top + tolerance);
if (titlebarRect.Contains(p))
{
return new AnnotationHitEventArgs(annotation, new DiagramTitleBar(annotation));
}
var annotationData = m_annotationEditors[annotation];
// check scroll bar
if (annotationData.VerticalScrollBarVisibe)
{
var scrollbarRect = new RectangleF(bounds.Right - Margin.Right - ScrollBarWidth - 2 * ScrollBarMargin, bounds.Y,
ScrollBarWidth + 2 * ScrollBarMargin, bounds.Height);
if (scrollbarRect.Contains(p))
return new AnnotationHitEventArgs(annotation, new DiagramScrollBar(annotation, Orientation.Vertical));
}
// check borders
// check corners first
var border = new RectangleF(bounds.Right - 2 * tolerance, bounds.Bottom - 2 * tolerance, 4 * tolerance, 4 * tolerance);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.LowerRightCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border = new RectangleF(bounds.Left - 2 * tolerance, bounds.Top - 2 * m_theme.PickTolerance, 4 * tolerance, 4 * tolerance);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.UpperLeftCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border = new RectangleF(bounds.Right - 2 * m_theme.PickTolerance, bounds.Top - 2 * m_theme.PickTolerance, 4 * tolerance, 4 * tolerance);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.UpperRightCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border = new RectangleF(bounds.Left - 2 * m_theme.PickTolerance, bounds.Bottom - 2 * m_theme.PickTolerance, 4 * tolerance, 4 * tolerance);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.LowerLeftCorner
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border = new RectangleF(bounds.Left - m_theme.PickTolerance, bounds.Y, 2 * m_theme.PickTolerance, bounds.Height);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Left
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border.Offset(bounds.Width, 0);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Right
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border = new RectangleF(bounds.Left, bounds.Y - m_theme.PickTolerance, bounds.Width, 2 * m_theme.PickTolerance);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Top
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
border.Offset(0, bounds.Height);
if (border.Contains(p))
{
var borderPart = new DiagramBorder(annotation)
{
Border = DiagramBorder.BorderType.Bottom
};
return new AnnotationHitEventArgs(annotation, borderPart);
}
// check label
inflated.Inflate(tolerance, tolerance);
DiagramLabel label = null;
if (inflated.Contains(p))
{
var textBounds = new Rectangle(bounds.X + Margin.Left, bounds.Y + Margin.Top,
(int)annotationData.TextLayout.LayoutWidth + SystemInformation.VerticalScrollBarWidth, (int)annotationData.TextLayout.LayoutHeight);
label = new DiagramLabel(textBounds, TextFormatFlags.LeftAndRightPadding);
// set initial editing position
var contentBounds = new RectangleF(bounds.X + Margin.Left, bounds.Y + Margin.Top,
bounds.Width - Margin.Size.Width, bounds.Height - Margin.Size.Height);
contentBounds.Width = Math.Max(contentBounds.Width, MinimumWidth);
contentBounds.Height = Math.Max(contentBounds.Height, MinimumHeight);
PointF origin = new PointF(contentBounds.Location.X, contentBounds.Location.Y - annotationData.TopLine * m_theme.TextFormat.FontHeight);
var result = new AnnotationHitEventArgs(annotation, label);
result.Position = new PointF(p.X - origin.X, p.Y - origin.Y);
return result;
}
}
}
}
return new AnnotationHitEventArgs();
}
/// <summary>
/// Pick using all bound IPickingAdapter2s</summary>
private AnnotationHitEventArgs PickAll(Point p)
{
DiagramHitRecord hitRecord = null;
if (AdaptedControl.Context != null)
{
foreach (IPickingAdapter2 pickingAdapter in m_pickingAdapters)
{
hitRecord = pickingAdapter.Pick(p);
if (hitRecord != null && hitRecord.Item != null)
break;
}
}
AnnotationHitEventArgs annotHit = hitRecord as AnnotationHitEventArgs;
if (annotHit == null) annotHit = new AnnotationHitEventArgs();
return annotHit;
}
