private void PopulateLookupList(LookupList lookupList)
{
_lookAheadText = lookupList.LookAheadText;
_insertionTemplates = lookupList.InsertionTemplates;
_listView.SuspendLayout();
foreach (LookupListItem item in lookupList.Items)
{
ListViewItem lvi = new ListViewItem();
lvi.Tag = item;
lvi.Text = " " + item.DisplayText;
lvi.ImageKey = item.Category;
lvi.ToolTipText = item.ToolTipText;
// Apply theme colors if available
if (_themeFlags != null)
{
if (_themeFlags.ViewAltBackColor != Color.Empty)
{
_listView.BackColor = _themeFlags.ViewAltBackColor;
}
if (_themeFlags.ViewAltForeColor != Color.Empty)
{
_listView.ForeColor = _themeFlags.ViewAltForeColor;
}
}
_listView.Items.Add(lvi);
}
_listView.ResumeLayout(true);
if (!String.IsNullOrEmpty(lookupList.LookAheadText) &&
(_listView.Items.Count > 0))
{
ListViewItem item = _listView.FindItemWithText(
" " + lookupList.LookAheadText, false, 0, true);
if (item != null)
{
item.Selected = true;
item.Focused = true;
item.EnsureVisible();
}
}
}
/// <summary>
/// Create the pop-up window.
/// </summary>
/// <param name="p">The location of the pop-up window.</param>
/// <param name="list">The code assist information to be presented.</param>
public LookupForm(Point p, LookupList list)
{
_themeFlags = ApplicationManager.GetInstance().
ClientProfile.ThemeFlags;
InitializeComponent();
_listView.MultiSelect = false;
_listView.Columns[0].Width = -1;
this.StartPosition = FormStartPosition.Manual;
this.Location = p;
PopulateLookupList(list);
// Remember items start with " " (it looks better)
_incrementalSearchText = " " + list.LookAheadText;
// Allow client apps to modify the form.
LookupFormProxy.GetInstance().UpdateFormControls(Controls);
}
/// <summary>
/// Invoke code assist on the current document.
/// </summary>
/// <param name="document">The current document.</param>
public void Invoke(ScintillaEditForm document)
{
if (document == null)
{
return;
}
LookupList lookupList = null;
try
{
_mainForm.Cursor = Cursors.WaitCursor;
lookupList = _codeAssistManager.GetLookupList(document);
}
catch
{
/*
* We want to ignore any exceptions that get this far
* for usability reasons. If the lookup fails we might
* as well just ignore it as there's nothing the user
* can do. We keep the command line option to allow
* debugging and testing.
*/
if (_applicationManager.HaveCommandLineSwitch(
Resources.SwitchDiagnostic))
{
throw;
}
}
finally
{
_mainForm.Cursor = Cursors.Default;
}
if (lookupList == null)
{
return;
}
if (lookupList.Items != null && lookupList.Items.Count > 0)
{
Point cursorLocation = GetCursorLocation(document);
if (cursorLocation.IsEmpty)
{
return;
}
/*
* Make sure the caret isn't too far out of bounds.
*/
if (cursorLocation.Y < _mainForm.Location.Y)
{
return;
}
if (cursorLocation.Y > _mainForm.Location.Y + _mainForm.Height)
{
return;
}
/*
* Move the lookup display point if the caret is
* close to the lower edge of the form.
*/
int threshold = GetWindowBottomEdge() -
Constants.LOOKUP_WINDOW_HEIGHT;
if (cursorLocation.Y > threshold)
{
cursorLocation.Y = threshold;
}
LookupForm lf;
try
{
_mainForm.Cursor = Cursors.WaitCursor;
lf = new LookupForm(cursorLocation, lookupList);
}
finally
{
_mainForm.Cursor = Cursors.Default;
}
if (lf.ShowDialog() == DialogResult.OK)
{
string selectedText = lf.SelectedText;
string lookAheadText = lf.LookAheadText;
if (!String.IsNullOrEmpty(lookAheadText))
{
document.Editor.Caret.Position -=
lookAheadText.Length;
document.Editor.Selection.Start =
document.Editor.Caret.Position;
document.Editor.Selection.End =
document.Editor.Caret.Position + lookAheadText.Length;
document.Editor.Selection.Text = String.Empty;
}
if (lf.InsertionTemplate == null)
{
document.Editor.InsertText(selectedText);
}
else
{
string template = lf.InsertionTemplate;
string insertionText = template.Replace(
Constants.INSERTION_TEMPLATE_TEXT_PLACEHOLDER,
selectedText);
int cursorOffset = insertionText.IndexOf(
Constants.INSERTION_TEMPLATE_CPOS_PLACEHOLDER);
insertionText = insertionText.Replace(
Constants.INSERTION_TEMPLATE_CPOS_PLACEHOLDER,
String.Empty);
document.Editor.InsertText(insertionText);
/*
* If offset is -1 the caret stays at the
* end of the inserted text.
*/
if (cursorOffset != -1)
{
document.Editor.Caret.Position -=
(insertionText.Length - cursorOffset);
document.Editor.Selection.Start =
document.Editor.Selection.End =
document.Editor.Caret.Position;
}
}
}
lf.Dispose();
}
}
