xenadmin/XenAdmin/Controls/HaNtolIndicator.cs

/* Copyright (c) Citrix Systems, Inc. 
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using System;
using System.Drawing;
using System.Windows.Forms;


namespace XenAdmin.Controls
{
    /// <summary>
    /// A control that displays Pool.ha_compute_max_host_failures_to_tolerate for a pool,
    /// automatically updating the displayed value
    /// </summary>
    public partial class HaNtolIndicator : HaNtolControl
    {
        public HaNtolIndicator()
        {
            InitializeComponent();
        }

        protected override void LoadCalculatingMode()
        {
            tableStatus.Enabled = false;
            labelNumberOfServers.Enabled = false;
            numericUpDownCapacity.Enabled = false;
            labelMax.Enabled = false;
            // load the spinner image if needed
            if (spinner.Image == null)
                spinner.Image = (Image)Properties.Resources.ajax_loader.Clone();
            spinner.Visible = true;
        }

        protected override void LoadCalculationSucceededMode(decimal value)
        {
            if (ntol == -1)
            {
                // first population or reset, set the ntol up-down to the pool
                //current or if HA is being initialised to the max possible
                numericUpDownCapacity.Value = value;
                ntol = (long)value;
                // Will normally be set by numericUpDownCapacity_ValueChanged:
                //but not if value = 0: this is the cause of CA-40907
            }

            labelMax.Text = string.Format(Messages.MAX_BRACKETS, ntolMax);

            labelNumberOfServers.Enabled = true;
            numericUpDownCapacity.Enabled = true;
            labelMax.Enabled = true;

            spinner.Visible = false;
            tableStatus.Visible = Overcommitted;
            tableStatus.Enabled = true;
        }

        protected override void LoadCalculationFailedMode()
        {
            groupBoxControls.Enabled = false;
            spinner.Visible = false;
            tableStatus.Visible = false;
        }

        private void numericUpDownCapacity_ValueChanged(object sender, EventArgs e)
        {
            ntol = (long)numericUpDownCapacity.Value;
            tableStatus.Visible = Overcommitted;
            OnNtolKnownChanged();
        }
    }
}