mirror of
https://github.com/xcp-ng/xenadmin.git
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381 lines
13 KiB
C#
381 lines
13 KiB
C#
/* Copyright (c) Citrix Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Text;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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using XenAdmin.Controls;
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using XenAdmin.Core;
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using XenAdmin.Network;
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using XenAPI;
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using XenAdmin.Commands;
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using XenAdmin.Dialogs;
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namespace XenAdmin.TabPages
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{
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public partial class PhysicalStoragePage : BaseTabPage
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{
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private IXenConnection connection;
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private Host host;
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private bool NeedBuildList;
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private readonly ListViewColumnSorter lvwColumnSorter = new ListViewColumnSorter();
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public PhysicalStoragePage()
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{
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InitializeComponent();
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listViewSrs.SmallImageList = Images.ImageList16;
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listViewSrs.ListViewItemSorter = lvwColumnSorter;
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listViewSrs.SelectedIndexChanged += new EventHandler(listViewSrs_SelectedIndexChanged);
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base.Text = Messages.STORAGE_TAB_TITLE;
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PBD_CollectionChangedWithInvoke=Program.ProgramInvokeHandler(PBD_CollectionChanged);
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}
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/// <summary>
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/// Make sure you set this before you set the connection,
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/// as the connection is the one which rebuilds the list
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/// </summary>
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public Host Host
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{
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set
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{
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if (host != null)
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{
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host.PropertyChanged -= host_PropertyChanged;
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}
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host = value;
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if (host != null)
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{
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host.PropertyChanged += host_PropertyChanged;
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}
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}
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}
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private readonly CollectionChangeEventHandler PBD_CollectionChangedWithInvoke;
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public IXenConnection Connection
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{
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set
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{
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if (connection != null)
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{
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connection.Cache.DeregisterCollectionChanged<PBD>(PBD_CollectionChangedWithInvoke);
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connection.XenObjectsUpdated -= XenObjectUpdated;
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foreach (SR sr in connection.Cache.SRs)
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{
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sr.PropertyChanged -= sr_PropertyChanged;
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}
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Pool pool = Helpers.GetPoolOfOne(connection);
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if(pool != null)
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pool.PropertyChanged -= pool_PropertyChanged;
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}
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connection = value;
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if (connection != null)
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{
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connection.Cache.RegisterCollectionChanged<PBD>(PBD_CollectionChangedWithInvoke);
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connection.XenObjectsUpdated += XenObjectUpdated;
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Pool pool = Helpers.GetPoolOfOne(connection);
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if (pool != null)
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pool.PropertyChanged += pool_PropertyChanged;
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}
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BuildList();
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}
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}
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internal void SetSelectionBroadcaster(SelectionBroadcaster selectionBroadcaster, IMainWindow mainWindow)
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{
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selectionBroadcaster.BindTo(newSRButton, mainWindow);
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}
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private void contextMenuStrip_Opening(object sender, CancelEventArgs e)
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{
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if (listViewSrs.SelectedItems.Count != 1)
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{
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e.Cancel = true;
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return;
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}
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contextMenuStrip.Items.Clear();
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SR sr = (SR)listViewSrs.SelectedItems[0].Tag;
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contextMenuStrip.Items.AddRange(Program.MainWindow.ContextMenuBuilder.Build(sr));
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}
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private void XenObjectUpdated(object sender, EventArgs e)
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{
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if (NeedBuildList)
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{
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BuildList();
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}
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}
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private void PBD_CollectionChanged(object sender, CollectionChangeEventArgs e)
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{
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Program.AssertOnEventThread();
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NeedBuildList = true;
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BuildList();
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}
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private void pool_PropertyChanged(object sender1, PropertyChangedEventArgs e)
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{
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if (e.PropertyName == "default_SR")
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NeedBuildList = true;
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}
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private void host_PropertyChanged(object sender1, PropertyChangedEventArgs e)
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{
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if (e.PropertyName == "PBDs")
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NeedBuildList = true;
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}
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private void sr_PropertyChanged(object sender, PropertyChangedEventArgs e)
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{
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if (e.PropertyName == "PBDs")
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{
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NeedBuildList = true;
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}
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else
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{
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RefreshRowForSr((SR)sender);
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}
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}
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/// <summary>
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/// Finds the ListView row for the given SR, and calls RefreshRow on it.
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/// </summary>
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private void RefreshRowForSr(SR sr)
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{
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foreach (ListViewItem row in listViewSrs.Items)
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{
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if ((SR)row.Tag == sr)
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{
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RefreshRow(row);
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return;
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}
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}
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}
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/// <summary>
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/// Fills in the subitems for the given row based on the SR it is Tag'd with.
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/// </summary>
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/// <param name="row"></param>
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private void RefreshRow(ListViewItem row)
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{
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SR sr = (SR)row.Tag;
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// Work out percent usage
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int percent = 0;
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double ratio = 0;
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if (sr.physical_size > 0)
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{
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ratio = sr.physical_utilisation / (double)sr.physical_size;
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percent = (int)(100.0 * ratio);
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}
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string percentString = string.Format(Messages.DISK_PERCENT_USED, percent.ToString(), Util.DiskSizeString(sr.physical_utilisation));
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row.SubItems.Clear();
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row.SubItems.AddRange(new string[] {
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sr.Name,
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sr.Description,
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sr.FriendlyTypeName,
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sr.shared ? Messages.YES : Messages.NO,
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percentString,
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Util.DiskSizeString(sr.physical_size),
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Util.DiskSizeString(sr.virtual_allocation)
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});
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// SubItems.Clear() always leaves 1 element in the collection,
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// so when we do the AddRange we're left with an unwanted element at the start
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// of the collection. Remove it below.
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row.SubItems.RemoveAt(0);
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// Tag for the benefit of our Comparison<ListViewItem.ListViewSubItem> below.
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row.SubItems[4].Tag = ratio;
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row.SubItems[5].Tag = sr.physical_size;
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row.SubItems[6].Tag = sr.virtual_allocation;
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row.ImageIndex = (int)sr.GetIcon;
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}
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private void BuildList()
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{
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if (!this.Visible)
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return;
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int selectedIndex = listViewSrs.SelectedIndices.Count == 1 ? listViewSrs.SelectedIndices[0] : -1;
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listViewSrs.BeginUpdate();
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try
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{
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listViewSrs.Items.Clear();
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if (connection == null)
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return;
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List<PBD> pbds = host != null ? new List<PBD>(connection.ResolveAll(host.PBDs))
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: new List<PBD>(connection.Cache.PBDs);
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List<String> srs = new List<String>();
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foreach (PBD pbd in pbds)
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{
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SR sr = pbd.Connection.Resolve(pbd.SR);
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if (sr == null || sr.IsToolsSR || !sr.Show(Properties.Settings.Default.ShowHiddenVMs))
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continue;
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// From MSDN:
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// Returns the zero-based index of item in the sorted List<T>, if item is found;
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// otherwise, a negative number that is the bitwise complement of the index of
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// the next element that is larger than item or, if there is no larger element,
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// the bitwise complement of Count.
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int index = srs.BinarySearch(sr.opaque_ref);
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// Don't allow duplicates
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if (index >= 0)
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continue;
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sr.PropertyChanged -= sr_PropertyChanged;
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sr.PropertyChanged += sr_PropertyChanged;
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index = ~index;
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srs.Insert(index, sr.opaque_ref);
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ListViewItem item = new ListViewItem();
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item.Tag = sr;
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RefreshRow(item);
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listViewSrs.Items.Add(item);
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}
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if (selectedIndex >= 0 && selectedIndex < listViewSrs.Items.Count)
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{
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// Select previously selected item
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listViewSrs.SelectedIndices.Clear();
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listViewSrs.SelectedIndices.Add(selectedIndex);
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}
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}
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finally
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{
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listViewSrs.EndUpdate();
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}
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RefreshButtons();
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NeedBuildList = false;
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}
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private void newSRButton_Click(object sender, EventArgs e)
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{
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new NewSRCommand(Program.MainWindow.CommandInterface, connection).Execute();
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}
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/// <summary>
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/// Taken from http://support.microsoft.com/kb/319401.
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void listViewSrs_ColumnClick(object sender, ColumnClickEventArgs e)
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{
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// Determine if clicked column is already the column that is being sorted.
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if (e.Column == lvwColumnSorter.SortColumn)
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{
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// Reverse the current sort direction for this column.
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if (lvwColumnSorter.Order == SortOrder.Ascending)
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{
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lvwColumnSorter.Order = SortOrder.Descending;
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}
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else
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{
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lvwColumnSorter.Order = SortOrder.Ascending;
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}
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}
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else
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{
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// Set the column number that is to be sorted; default to ascending.
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lvwColumnSorter.SortColumn = e.Column;
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lvwColumnSorter.Order = SortOrder.Ascending;
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}
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if (4 <= e.Column && e.Column <= 6)
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{
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// Use a custom comparer that sorts by the subitem's tag
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lvwColumnSorter.Comparer = (Comparison<ListViewItem.ListViewSubItem>)delegate(ListViewItem.ListViewSubItem a, ListViewItem.ListViewSubItem b)
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{
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return ((IComparable)a.Tag).CompareTo((IComparable)b.Tag);
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};
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}
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else
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{
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// Use the default comparer (Helpers.NatualCompare)
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lvwColumnSorter.Comparer = null;
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}
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// Perform the sort with these new sort options.
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listViewSrs.Sort();
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}
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private void buttonProperties_Click(object sender, EventArgs e)
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{
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if (listViewSrs.SelectedItems.Count != 1)
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return;
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SR sr = (SR)listViewSrs.SelectedItems[0].Tag;
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new PropertiesDialog(sr).ShowDialog(this);
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}
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void listViewSrs_SelectedIndexChanged(object sender, EventArgs e)
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{
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RefreshButtons();
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}
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private void RefreshButtons()
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{
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buttonProperties.Enabled = listViewSrs.SelectedItems.Count == 1;
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}
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}
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}
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