private void Editor_KeyUp(object sender, KeyEventArgs e)
{
try
{
if (AutoComplete)
{
if (e.Control)
{
switch (e.KeyCode)
{
case Keys.Space:
// Remove the space that has just been added
EditionTextBox.Select(EditionTextBox.SelectionStart - 1, 1);
EditionTextBox.SelectedText = "";
DisplayComboBox();
e.Handled = true;
break;
case Keys.I:
// Remove the space that has just been added
EditionTextBox.Select(EditionTextBox.SelectionStart - 1, 1);
EditionTextBox.SelectedText = "";
EditionTextBox.Indent();
e.Handled = true;
break;
}
}
}
}
catch (Exception)
{
}
if (!e.Handled)
{
if (e.Control)
{
switch (e.KeyCode)
{
case Keys.A:
EditionTextBox.SelectAll();
e.Handled = true;
break;
case Keys.C:
EditionTextBox.Copy();
e.Handled = true;
break;
case Keys.V:
e.Handled = true;
break;
}
}
}
}
private void ConfirmComboBoxSelection()
{
if (PendingSelection)
{
PendingSelection = false;
EditionTextBox.Select(_selectionStart, _selectionLength);
EditionTextBox.SelectedText = SelectionComboBox.Text;
EditionTextBox.SelectionStart = EditionTextBox.SelectionStart;
SelectionComboBox.Text = "";
SelectionComboBox.Items.Clear();
SelectionComboBox.Hide();
explainRichTextBox.Hide();
}
}
/// <summary>
/// Displays the combo box if required and updates the edotor's text
/// </summary>
private void DisplayComboBox()
{
int index = EditionTextBox.SelectionStart - 1;
string prefix = CurrentPrefix(index).Trim();
index = Math.Max(0, index - prefix.Length);
SortedSet <ObjectReference> allChoices = AllChoices(index, prefix);
if (prefix.Length <= EditionTextBox.SelectionStart)
{
// It seems that selection start and length may be lost when losing the focus.
// Store them to be able to reapply them
_selectionStart = EditionTextBox.SelectionStart - prefix.Length;
_selectionLength = prefix.Length;
EditionTextBox.Select(_selectionStart, _selectionLength);
if (allChoices.Count == 1)
{
EditionTextBox.SelectedText = allChoices.First().DisplayName;
}
else if (allChoices.Count > 1)
{
SelectionComboBox.Items.Clear();
foreach (ObjectReference choice in allChoices)
{
SelectionComboBox.Items.Add(choice);
}
if (prefix.Length > 0)
{
SelectionComboBox.Text = prefix;
}
else
{
SelectionComboBox.Text = allChoices.First().DisplayName;
}
// Try to compute the combo box location
// TODO : Hypothesis. The first displayed line is the first line of the text
int line = 1;
string lineData = "";
for (int i = 0; i < EditionTextBox.SelectionStart; i++)
{
switch (EditionTextBox.Text[i])
{
case '\n':
line += 1;
lineData = "";
break;
default:
lineData += EditionTextBox.Text[i];
break;
}
}
SizeF size = CreateGraphics().MeasureString(lineData, EditionTextBox.Font);
int x = Math.Min((int)size.Width, Location.X + Size.Width - SelectionComboBox.Width);
int y = (line - 1) * EditionTextBox.Font.Height + 5;
Point comboBoxLocation = new Point(x, y);
SelectionComboBox.Location = comboBoxLocation;
PendingSelection = true;
EditionTextBox.SendToBack();
SelectionComboBox.Show();
SelectionComboBox.Focus();
}
}
}