private void LoadCache()
{
lock (m_SyncRoot)
{
string cacheFile = System.IO.Path.GetFullPath(PositionMemento.DATABASE_PATH + "\\Controls.cache");
if (File.Exists(cacheFile))
{
m_SavedControl.Clear();
try
{
using (FileStream cachFile = new FileStream(cacheFile, FileMode.Open, FileAccess.Read))
{
BinaryFormatter frm = new BinaryFormatter();
int NumEvents = (int)frm.Deserialize(cachFile);
for (int i = 0; i < NumEvents; i++)
{
ControlMemento entry = (ControlMemento)frm.Deserialize(cachFile);
m_SavedControl.Add(entry.ControlType, entry);
}
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.GetFullStackTrace());
m_CacheReset = true;
}
}
else
{
m_CacheReset = true;
}
}
}
private static bool LoadDataGridView(ControlMemento memento, DataGridView dgv)
{
if (memento.IsNew)
{
SaveDataGridView(memento, dgv, null);
memento.IsNew = false;
}
if (memento.Properties.Count == dgv.Columns.Count + 1)
{
int idx = 0;
foreach (DataGridViewColumn column in dgv.Columns)
{
string key = string.Format("Width-{0}", idx);
int val = memento.Properties[key];
column.Width = val;
idx++;
}
return(true);
}
else
{
//Trace.WriteLineIf(Config.TraceSwitches.UIEvents.TraceVerbose, "FAILED: '" + memento.Properties.Count.ToString() + "' props and '" + dgv.Columns.Count.ToString() + "' columns", "ControlMemento");
return(false);
}
}
public static bool LoadControlPosition(Control ctl)
{
if (ctl != null)
{
ControlMemento memento = m_Cache.GetControlMemento(ctl);
if (ctl is Form)
{
return(LoadForm(memento, ctl as Form));
}
else if (ctl is ListView)
{
return(LoadListView(memento, ctl as ListView));
}
else if (ctl is DataGridView)
{
return(LoadDataGridView(memento, ctl as DataGridView));
}
else
{
Debug.Assert(false, "Control type not supported.");
}
}
return(false);
}
private static bool LoadListView(ControlMemento memento, ListView lv)
{
if (memento.IsNew)
{
SaveListView(memento, lv, null);
memento.IsNew = false;
}
if (memento.Properties.Count <= lv.Columns.Count + 1)
{
int idx = 0;
foreach (ColumnHeader col in lv.Columns)
{
string key = string.Format("Width-{0}", idx);
if (memento.Properties.ContainsKey(key))
{
int val = memento.Properties[key];
col.Width = val;
}
else
{
idx++;
}
}
return(true);
}
else
{
return(false);
}
}
public static void SaveControlPosition(Control ctl, object argument)
{
if (ctl != null)
{
ControlMemento memento = m_Cache.GetControlMemento(ctl);
if (ctl is Form)
{
SaveForm(memento, ctl as Form);
}
else if (ctl is ListView)
{
SaveListView(memento, ctl as ListView, argument);
}
else if (ctl is DataGridView)
{
SaveDataGridView(memento, ctl as DataGridView, argument);
}
else
{
Debug.Assert(false, "Control type not supported.");
}
m_Cache.Save();
}
}
private static void SaveForm(ControlMemento memento, Form form)
{
memento.Properties.Clear();
memento.Properties.Add("Version", 1);
memento.Properties.Add("Height", form.Height);
memento.Properties.Add("Width", form.Width);
memento.Properties.Add("Top", form.Top);
memento.Properties.Add("Left", form.Left);
}
public ControlMemento GetControlMemento(Control ctl)
{
string key = ctl.GetType().ToString() + "*" + ctl.Name;
ControlMemento outVal;
if (m_SavedControl.TryGetValue(key, out outVal))
{
return(outVal);
}
else
{
ControlMemento newMemento = new ControlMemento(key);
m_SavedControl.Add(key, newMemento);
return(newMemento);
}
}
private static void SaveListView(ControlMemento memento, ListView lv, object argument)
{
memento.Properties.Clear();
memento.Properties.Add("Version", 1);
int idx = 0;
foreach (ColumnHeader col in lv.Columns)
{
string key = string.Format("Width-{0}", idx);
int val = col.Width;
memento.Properties.Add(key, val);
idx++;
}
}
private static void SaveDataGridView(ControlMemento memento, DataGridView dgv, object argument)
{
memento.Properties.Clear();
memento.Properties.Add("Version", 1);
int idx = 0;
foreach (DataGridViewColumn column in dgv.Columns)
{
string key = string.Format("Width-{0}", idx);
int val = column.Width;
memento.Properties.Add(key, val);
idx++;
}
}
private static bool LoadForm(ControlMemento memento, Form form)
{
if (memento.IsNew)
{
memento.Properties["Height"] = form.Height;
memento.Properties["Width"] = form.Width;
memento.Properties["Top"] = form.Top;
memento.Properties["Left"] = form.Left;
memento.IsNew = false;
}
form.Height = memento.Properties["Height"];
form.Width = memento.Properties["Width"];
form.Top = memento.Properties["Top"];
form.Left = memento.Properties["Left"];
return(true);
}
