public void SetValue(int value)
{
if (pb_color_bar.InvokeRequired)
{
valueChangeCallback a = new valueChangeCallback(SetValue);
pb_color_bar.Invoke(a, value);
}
else
{
this.value = value;
double perLength = (double)width / (double)maxValue;
int location = (int)(perLength * value);
circleLocation.X = location;
pb_color_bar.Width = location;
pb_circle.Location = circleLocation;
RunCallback();
}
}
public void AddValueChangeEvent(valueChangeCallback c)
{
callback = c;
}
public Ye0junSeekbar(Panel root, int width, int maxValue)
{
callback = null;
this.margin = 5;
this.width = width;
this.maxValue = maxValue;
this.value = 0;
bClick = false;
parent = new Panel();
parent.Width = width + margin * 2;
parent.Height = 9;
root.Controls.Add(parent);
root.Controls.SetChildIndex(parent, 0);
touch = new TransparentPanel();
touch.Width = width + margin * 2;
touch.Height = 9;
touch.Visible = false;
parent.Controls.Add(touch);
parent.Controls.SetChildIndex(touch, 0);
circleLocation = new Point(0, 0);
pb_circle = new PictureBox();
pb_circle.Width = 9;
pb_circle.Height = 9;
pb_circle.Location = circleLocation;
pb_circle.Image = Properties.Resources.circle;
pb_circle.BackColor = Color.Transparent;
parent.Controls.Add(pb_circle);
pb_color_bar = new PictureBox();
pb_color_bar.Width = 50;
pb_color_bar.Height = 1;
pb_color_bar.Location = new Point(4, 4);
pb_color_bar.BackColor = Color.FromArgb(255, 255, 255, 255);
parent.Controls.Add(pb_color_bar);
pb_bar = new PictureBox();
pb_bar.Width = width;
pb_bar.Height = 1;
pb_bar.Location = new Point(4, 4);
pb_bar.BackColor = Color.FromArgb(100, 255, 255, 255);
parent.Controls.Add(pb_bar);
touch.MouseDown += new MouseEventHandler((o, e) =>
{
bClick = true;
});
touch.MouseUp += new MouseEventHandler((o, e) =>
{
bClick = false;
});
touch.MouseMove += new MouseEventHandler(SeekbarMoveEvent);
void SeekbarMoveEvent(object o, MouseEventArgs e)
{
if (bClick)
{
SetValueByPoint(e.X);
}
}
}
