ardupilot/Tools/ArdupilotMegaPlanner/Controls/MyLabel.cs

89 lines
2.3 KiB
C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace ArdupilotMega
{
/// <summary>
/// profiling showed that the built in Label function was using alot ot call time.
/// </summary>
public partial class MyLabel : Control //: Label
{
string label = "";
int noofchars = 0;
bool autosize = false;
[System.ComponentModel.Browsable(true)]
public bool resize { get { return autosize; } set { autosize = value; } }
public MyLabel()
{
}
public override string Text
{
get
{
return label;
}
set
{
if (value == null)
return;
if (label == value)
return;
label = value;
if (noofchars != label.Length && resize)
{
noofchars = label.Length;
Size textSize = TextRenderer.MeasureText(value, this.Font);
this.Width = textSize.Width;
}
this.Invalidate();
}
}
SolidBrush s = new SolidBrush(Color.White);
SolidBrush b = new SolidBrush(Color.Black);
StringFormat stringFormat = new StringFormat();
protected override void OnPaint(PaintEventArgs e)
{
stringFormat.Alignment = StringAlignment.Near;
stringFormat.LineAlignment = StringAlignment.Center;
s = new SolidBrush(ForeColor);
e.Graphics.DrawString(label, this.Font, s, new PointF(0, this.Height / 2.0f), stringFormat);
}
protected override void OnPaintBackground(PaintEventArgs pevent)
{
b = new SolidBrush(BackColor);
pevent.Graphics.FillRectangle(b, this.ClientRectangle);
base.OnPaintBackground(pevent);
}
protected override void WndProc(ref Message m) // seems to crash here on linux... so try ignore it
{
try
{
base.WndProc(ref m);
}
catch { }
}
}
}