public void SetData(Pen pen)
{
_pen = new PenWrapper(pen);
textBoxWidth.Text = _pen.Width.ToString();
lblColor.BackColor = _pen.Color;
updateSample();
}
private void comboBox1_DrawItem(object sender, DrawItemEventArgs e)
{
if (e.Index > 0)
{
PenWrapper pw = comboBox1.Items[e.Index] as PenWrapper;
bool selected = ((e.State & DrawItemState.Selected) != DrawItemState.None);
if (selected)
{
e.Graphics.FillRectangle(Brushes.Blue, e.Bounds);
}
else
{
e.Graphics.FillRectangle(Brushes.White, e.Bounds);
}
e.Graphics.FillRectangle(new SolidBrush(pw.Pen.Color), e.Bounds.Left + 2, e.Bounds.Top + 2, 16, 16);
if (selected)
{
e.Graphics.DrawString(pw.ToString(), this.Font, Brushes.White, e.Bounds.Left + (float)20, e.Bounds.Top + (float)2);
}
else
{
e.Graphics.DrawString(pw.ToString(), this.Font, Brushes.Black, e.Bounds.Left + (float)20, e.Bounds.Top + (float)2);
}
}
}
public override object EditValue(System.ComponentModel.ITypeDescriptorContext context, IServiceProvider provider, object value)
{
if (context != null && context.Instance != null && provider != null)
{
IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
if (edSvc != null)
{
DlgSelectPen dlg = new DlgSelectPen();
Pen p = value as Pen;
if (p != null)
{
dlg.SetData(p);
}
PenWrapper pw = value as PenWrapper;
if (pw != null)
{
dlg.SetData(pw.Pen);
}
if (edSvc.ShowDialog(dlg) == System.Windows.Forms.DialogResult.OK)
{
if (context.PropertyDescriptor.PropertyType.Equals(typeof(Pen)))
{
return(dlg._pen.Pen);
}
return(dlg._pen);
}
}
}
return(value);
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
int n = comboBox1.SelectedIndex;
if (n > 0)
{
_pen = comboBox1.Items[n] as PenWrapper;
textBoxWidth.Text = "1";
lblColor.BackColor = _pen.Color;
updateSample();
}
}
private void btColor_Click(object sender, EventArgs e)
{
ColorDialog dlg = new ColorDialog();
dlg.Color = _pen.Color;
if (dlg.ShowDialog(this) == DialogResult.OK)
{
_pen = new PenWrapper(dlg.Color, _pen.Width);
lblColor.BackColor = dlg.Color;
updateSample();
}
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
// other TypeConverter operations go here...
//
PenWrapper pt = value as PenWrapper;
if (destinationType == typeof(InstanceDescriptor) && pt != null)
{
ConstructorInfo ctor = typeof(PenWrapper).GetConstructor(new Type[] { typeof(Color), typeof(float) });
if (ctor != null)
{
return(new InstanceDescriptor(ctor, new object[] { pt.Color, pt.Width }));
}
}
return(base.ConvertTo(context, culture, value, destinationType));
}
private void textBoxWidth_TextChanged(object sender, EventArgs e)
{
float n = _pen.Width;
try
{
n = Convert.ToSingle(textBoxWidth.Text);
if (n > 0 && n < 30)
{
_pen = new PenWrapper(_pen.Color, n);
updateSample();
}
}
catch
{
}
}
public override void PaintValue(PaintValueEventArgs e)
{
Pen p = e.Value as Pen;
if (p != null)
{
e.Graphics.FillRectangle(new SolidBrush(p.Color), e.Bounds.Left, e.Bounds.Top, 16, 16);
e.Graphics.DrawString(string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0} {1}", p.Width, p.Color.Name), _font, Brushes.Black, (float)(e.Bounds.Left + 20), (float)(e.Bounds.Top + 2));
}
else
{
PenWrapper pw = e.Value as PenWrapper;
if (pw != null)
{
e.Graphics.FillRectangle(new SolidBrush(pw.Color), e.Bounds.Left, e.Bounds.Top, 16, 16);
}
else
{
base.PaintValue(e);
}
}
}
