public void HideGroup(GroupBase group)
{
if (_layout != null)
{
if (_layout.Group != group)
{
return;
}
_groupScrollPosition[group] = _verticalScrollBar.Value;
try
{
ServerLabel serverLabel = Program.TheForm.ActiveControl as ServerLabel;
ServerLabel[] labelArray = _layout.LabelArray;
foreach (ServerLabel serverLabel2 in labelArray)
{
if (serverLabel == serverLabel2)
{
Program.TheForm.ActiveControl = this;
}
serverLabel2.Server.Hide();
base.Controls.Remove(serverLabel2);
}
}
finally
{
_layout = null;
}
}
_verticalScrollBar.Hide();
}
public void ShowGroup(GroupBase group)
{
bool flag = true;
if (_layout != null && _layout.Group == group)
{
flag = false;
}
if (!_layoutHash.TryGetValue(group, out _layout))
{
_layout = CreateThumbnailLayout(group);
_layoutHash.Add(group, _layout);
}
ComputeScrollBarLimits();
if (flag)
{
if (!_groupScrollPosition.TryGetValue(group, out int value))
{
value = 0;
}
SetScrollPosition(value);
}
_thumbnailDrawn = new bool[_layout.NodeCount];
DrawThumbnails(group);
}
private void UpdateNonLayoutSettings(ThumbnailLayout shownLayout)
{
shownLayout.LabelArray.ForEach(delegate(ServerLabel l)
{
UpdateNonLayoutSettings(l.Server);
});
}
private ThumbnailLayout CreateThumbnailLayout(GroupBase group)
{
using (Helpers.Timer("creating thumbnail layout for {0}", group.Text))
{
ThumbnailLayout thumbnailLayout = new ThumbnailLayout(group);
int num;
if (Program.Preferences.ThumbnailSizeIsInPixels)
{
Size thumbnailSize = Program.Preferences.ThumbnailSize;
_thumbnailUnitWidth = thumbnailSize.Width;
_thumbnailUnitHeight = thumbnailSize.Height;
num = ComputeNumAcross(base.ClientSize.Width, _thumbnailUnitWidth);
}
else
{
num = 100 / Program.Preferences.ThumbnailPercentage;
_thumbnailUnitWidth = (base.ClientSize.Width - _verticalScrollBar.Width - 8) / num - 8;
_thumbnailUnitHeight = (base.ClientSize.Height - 6) / num - ThumbnailLabelHeight - 6;
Program.Preferences.ThumbnailSize = new Size(_thumbnailUnitWidth, _thumbnailUnitHeight);
}
thumbnailLayout.Compute(num);
return(thumbnailLayout);
}
}
private void OnGroupChanged(GroupChangedEventArgs obj)
{
if ((obj.Group == ServerTree.Instance.RootNode && !obj.ChangeType.HasFlag(ChangeType.PropertyChanged)) || (obj.Group != ServerTree.Instance.RootNode && !obj.ChangeType.HasFlag(ChangeType.InvalidateUI)))
{
return;
}
ThumbnailLayout layout = _layout;
GroupBase groupBase = layout?.Group;
bool flag = false;
if (layout != null)
{
ThumbnailLayout thumbnailLayout = CreateThumbnailLayout(groupBase);
if (!obj.ChangeType.HasFlag(ChangeType.PropertyChanged) && thumbnailLayout.Equals(layout))
{
Log.Write("布局不变,不重绘");
thumbnailLayout.Dispose();
UpdateNonLayoutSettings(layout);
}
else
{
HideGroup(groupBase);
layout.Dispose();
_layoutHash[groupBase] = thumbnailLayout;
ShowGroup(groupBase);
flag = true;
}
}
TreeNode treeNode = obj.Group;
if (treeNode != ServerTree.Instance.RootNode)
{
while (treeNode != null)
{
ThumbnailLayout value;
if (treeNode == groupBase)
{
if (!flag)
{
break;
}
}
else if (_layoutHash.TryGetValue(treeNode, out value))
{
_layoutHash.Remove(treeNode);
value.Dispose();
}
treeNode = treeNode.Parent;
}
}
else
{
ResetLayout();
}
if (layout == null)
{
ServerBase serverBase = ServerTree.Instance.SelectedNode as ServerBase;
if (serverBase != null)
{
UpdateNonLayoutSettings(serverBase.ServerNode);
}
}
}
