private void GotoLineNumberToolStripMenuItemClick(object sender, EventArgs e)
{
ReloadFromSourceView();
if (!IsSubtitleLoaded)
{
MessageBox.Show(_language.NoSubtitleLoaded, Title, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
var goToLine = new GoToLine();
if (tabControlSubtitle.SelectedIndex == TabControlListView)
{
goToLine.Initialize(1, SubtitleListview1.Items.Count);
}
else if (tabControlSubtitle.SelectedIndex == TabControlSourceView)
{
goToLine.Initialize(1, textBoxSource.Lines.Length);
}
if (goToLine.ShowDialog(this) == DialogResult.OK)
{
if (tabControlSubtitle.SelectedIndex == TabControlListView)
{
SubtitleListview1.SelectNone();
SubtitleListview1.Items[goToLine.LineNumber - 1].Selected = true;
SubtitleListview1.Items[goToLine.LineNumber - 1].EnsureVisible();
SubtitleListview1.Items[goToLine.LineNumber - 1].Focused = true;
ShowStatus(string.Format(_language.GoToLineNumberX, goToLine.LineNumber));
}
else if (tabControlSubtitle.SelectedIndex == TabControlSourceView)
{
// binary search
int start = 0;
int end = textBoxSource.Text.Length;
while (end - start > 10)
{
int middle = (end - start) / 2;
if (goToLine.LineNumber - 1 >= textBoxSource.GetLineFromCharIndex(start + middle))
start += middle;
else
end = start + middle;
}
// go before line, so we can find first char on line
start -= 100;
if (start < 0)
start = 0;
for (int i = start; i <= end; i++)
{
if (textBoxSource.GetLineFromCharIndex(i) == goToLine.LineNumber - 1)
{
// select line, scroll to line, and focus...
textBoxSource.SelectionStart = i;
textBoxSource.SelectionLength = textBoxSource.Lines[goToLine.LineNumber - 1].Length;
textBoxSource.ScrollToCaret();
ShowStatus(string.Format(_language.GoToLineNumberX, goToLine.LineNumber));
if (textBoxSource.CanFocus)
textBoxSource.Focus();
break;
}
}
ShowSourceLineNumber();
}
}
goToLine.Dispose();
}
