public DashStyleComboBox(DashStyleEx selected)
: this()
{
SetDataSource(selected);
}
void SetDataSource(DashStyleEx selected)
{
if (_dashStyles == null)
SetDefaultValues();
if (!_dashStyles.Contains(selected))
_dashStyles.Add(selected.Clone());
this.BeginUpdate();
Items.Clear();
foreach (DashStyleEx o in _dashStyles)
Items.Add(o);
SelectedItem = selected;
this.EndUpdate();
}
public void CopyFrom(DashStyleEx from)
{
if (object.ReferenceEquals(this, from))
return;
this._knownStyle = from.KnownStyle;
this._customStyle = from._customStyle == null ? null : (float[])from._customStyle.Clone();
}
public DashStyleEx(DashStyleEx from)
{
CopyFrom(from);
}
public static ImageSource GetImage(DashStyleEx val)
{
const double height = 1;
const double width = 2;
const double lineWidth = height / 5;
DashStyle dashStyle = DashStyles.Solid;
if (val.IsKnownStyle)
{
if (val == DashStyleEx.Solid)
dashStyle = DashStyles.Solid;
else if (val == DashStyleEx.Dash)
dashStyle = DashStyles.Dash;
else if (val == DashStyleEx.Dot)
dashStyle = DashStyles.Dot;
else if (val == DashStyleEx.DashDot)
dashStyle = DashStyles.DashDot;
else if (val == DashStyleEx.DashDotDot)
dashStyle = DashStyles.DashDotDot;
else if (val == DashStyleEx.LongDash)
dashStyle = new DashStyle(new double[] { 5, 2 }, 0);
}
else if (val.IsCustomStyle)
{
var list = new List<double>();
foreach (var e in val.CustomStyle)
list.Add(e);
dashStyle = new DashStyle(list, 0);
}
// draws a transparent outline to fix the borders
var drawingGroup = new DrawingGroup();
var geometryDrawing = new GeometryDrawing();
geometryDrawing.Geometry = new RectangleGeometry(new Rect(0, 0, width, height));
geometryDrawing.Pen = new Pen(Brushes.Transparent, 0);
drawingGroup.Children.Add(geometryDrawing);
geometryDrawing = new GeometryDrawing() { Geometry = new LineGeometry(new Point(0, height / 2), new Point(width, height / 2)) };
geometryDrawing.Pen = new Pen(Brushes.Black, lineWidth) { DashStyle = dashStyle };
drawingGroup.Children.Add(geometryDrawing);
var geometryImage = new DrawingImage(drawingGroup);
// Freeze the DrawingImage for performance benefits.
geometryImage.Freeze();
return geometryImage;
}
public void CopyFrom(DashStyleEx from)
{
this._knownStyle = from.KnownStyle;
this._customStyle = from._customStyle == null ? null : (float[])from._customStyle.Clone();
}
