private void addBtn_Click(object sender, EventArgs e)
{
float scaleX = (float)this.xScale.Value;
if (scaleX == 0)
{
scaleX = 1f;
}
float scaleY = (float)this.yScale.Value;
if (scaleY == 0)
{
scaleY = 1f;
}
//the created instance can always be cast to ILineGraphProvider, because the items in sourceBox.DataSource are only added
//by AddProviderType<T>() where T : ILineGraphProvider
ILineGraphProvider provider = (ILineGraphProvider)Activator.CreateInstance((Type)sourceBox.SelectedItem);
if (provider.AskForParameters())
{
this.drawer = new LineGraphDrawer(provider, scaleX, scaleY, this.colorBtn.BackColor, this.markPointsBox.Checked);
this.DialogResult = DialogResult.OK;
}
else
{
this.DialogResult = DialogResult.Cancel;
}
this.Close();
}
public LineGraphDrawer(ILineGraphProvider provider, float scaleX, float scaleY, Color color, bool markPoints)
{
this.provider = provider;
this.color = color;
this.scaleX = scaleX;
this.scaleY = scaleY;
this.markPoints = markPoints;
}
