/// <summary>
/// 切换当前信区
/// </summary>
/// <param name="iIndex"></param>
private void ChangeCurrentAreaTo(int iIndex)
{
if (this.iCurrentArea == iIndex)
{
return;
}
if (this.lvArea.Items.Count <= iIndex)
{
return;
}
if (this.lvArea.Items[iIndex].Tag == null)
{
return;
}
// 更新查找书签
this.iFindRecord = 0;
this.iFindArea = iIndex;
this.iCurrentArea = iIndex;
// 滚动ＬＩＳＴ
this.lvArea.SelectedItems.Clear();
this.lvArea.Items[iIndex].Selected = true;
this.lvArea.EnsureVisible(this.iCurrentArea);
this.Cursor = Cursors.WaitCursor;
this.lvMail.Items.Clear();
MailArea m = (MailArea)this.lvArea.Items[iIndex].Tag;
this.arCurrentMails = m.LoadMails();
if (this.arCurrentMails == null || this.arCurrentMails.Length == 0)
{
ListViewItem lvi = this.lvMail.Items.Add("空信区");
this.Cursor = Cursors.Default;
return;
}
for (int i = 0; i < this.arCurrentMails.Length; i++)
{
JamMail jm = this.arCurrentMails[i];
ListViewItem lvi = this.lvMail.Items.Add(jm.sFrom);
lvi.SubItems.Add(jm.sTo);
lvi.SubItems.Add(jm.sSubject);
lvi.SubItems.Add(jm.uSize.ToString("#,0"));
lvi.SubItems.Add(jm.dtSendTime.ToString());
lvi.SubItems.Add(jm.dtReciveTime.ToString());
lvi.Tag = jm;
}
this.Cursor = Cursors.Default;
}
public JamMail[] LoadMails()
{
JamMail[] arMails = null;
FileStream fs = null;
try
{
fs = new FileStream(this.sFullPathName + ".jhr", FileMode.Open, FileAccess.Read);
}
catch
{
return(null);
}
BinaryReader br = new BinaryReader(fs);
fs.Seek(0x400, SeekOrigin.Begin);
ArrayList alMails = new ArrayList((int)this.lMailCount);
while (fs.Position < fs.Length && alMails.Count < this.lMailCount)
{
JamMail jm = new JamMail();
jm.sFileName = this.sFullPathName;
try
{
jm.LoadInfoFromStream(br);
}
catch
{
br.Close();
arMails = new JamMail[alMails.Count];
alMails.CopyTo(arMails);
return(arMails);
}
alMails.Add(jm);
}
br.Close();
arMails = new JamMail[alMails.Count];
alMails.CopyTo(arMails);
return(arMails);
}
private void ShowCurrentMail()
{
if (this.lvMail.SelectedItems.Count == 0)
{
return;
}
if (this.lvMail.SelectedItems[0].Tag == null)
{
return;
}
JamMail jm = (JamMail)this.lvMail.SelectedItems[0].Tag;
this.lbInfo.Text = jm.GetInfoString();
this.txtContent.Clear();
this.txtContent.ClearUndo();
this.txtContent.Text = jm.LoadText();
// this.txtContent.Text = jm.LoadText();
this.iFindRecord = this.lvMail.SelectedItems[0].Index + 1;
this.iFindArea = this.lvArea.SelectedItems[0].Index;
}
private void mnFindNext_Click(object sender, System.EventArgs e)
{
string sFindText = this.frmFind.txtFindText.Text;
if (this.frmFind.chkNoCase.Checked)
{
sFindText = sFindText.ToLower();
}
bool bFound = false;
int i = 0, j;
int iEndArea = this.frmFind.chkAllArea.Checked ?
this.lvArea.Items.Count - 1: this.iFindArea;
for (j = this.iFindArea; j < iEndArea; j++)
{
MailArea m = (MailArea)this.lvArea.Items[j].Tag;
JamMail [] jms;
// 如果是当前信区，那么不需要再读文件了．
if (this.iCurrentArea != j)
{
jms = m.LoadMails();
}
else
{
jms = this.arCurrentMails;
}
if (jms == null)
{
continue;
}
#region look up a mail in a area
for (i = this.iFindRecord; i < jms.Length; i++)
{
JamMail jm = (JamMail)jms[i];
bFound = jm.FindText(
this.frmFind.txtFindText.Text,
this.frmFind.chkFrom.Checked,
this.frmFind.chkTo.Checked,
this.frmFind.chkSubject.Checked,
this.frmFind.chkContent.Checked,
this.frmFind.chkNoCase.Checked,
false
);
if (bFound)
{
// 找到了．
break;
}
}
if (bFound)
{
break;
}
else
{
// 从下个区的开始找．
this.iFindRecord = 0;
}
#endregion
}
if (!bFound)
{
MessageBox.Show("没有了．");
return;
}
// 要切换到找到的信区和信里．
if (j != this.iCurrentArea)
{
//不是当前区，要切换到Ｊ信区里
this.ChangeCurrentAreaTo(j);
}
this.lvMail.SelectedItems.Clear();
this.lvMail.Items[i].Selected = true;
this.ShowCurrentMail();
this.lvMail.Items[i].EnsureVisible();
this.txtContent.Focus();
}