protected override void OnMouseDown(System.Windows.Forms.MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
SpanLayoutBox spanBox = this.Document.GetLayoutBoxByPosition(e.Location) as SpanLayoutBox;
this.BuildContextMenu(spanBox).Show(this, e.Location);
}
base.OnMouseDown(e);
}
private void ReplaceCurrentWord(SpanLayoutBox spanBox, string newWord)
{
this.Document.CaretPosition.MoveToInline(spanBox, 0);
DocumentPosition endPosition = new DocumentPosition(this.Document.CaretPosition);
endPosition.MoveToCurrentWordEnd();
this.Document.Selection.Clear();
this.Document.Selection.AddSelectionStart(this.Document.CaretPosition);
this.Document.Selection.AddSelectionEnd(endPosition);
this.Insert(newWord);
}
private void HighlightOccurrencesInVisibleBoxes(IEnumerable <SpanLayoutBox> spanList)
{
if (spanList.Count() == 0)
{
return;
}
SpanLayoutBox firstBox = spanList.First();
SpanLayoutBox lastBox = spanList.Last();
DocumentPosition searchStart = new DocumentPosition(this.Document);
DocumentPosition searchEnd = new DocumentPosition(this.Document);
searchStart.MoveToInline(firstBox, 0);
searchEnd.MoveToInline(lastBox, lastBox.PositionsCountInBox - 1);
DocumentTextSearch textSearch = new DocumentTextSearch(this.Document);
TextRange textRange = textSearch.Find(word, searchStart, searchEnd);
int count = 0;
while (textRange != null)
{
count++;
DocumentPosition lineStart = new DocumentPosition(textRange.StartPosition);
DocumentPosition lineEnd = new DocumentPosition(lineStart);
lineEnd.MoveToCurrentLineEnd();
while (lineEnd < textRange.EndPosition)
{
this.FlushBoxes(lineStart, lineEnd);
lineStart.MoveToCurrentLineEnd();
lineStart.MoveToNext();
lineEnd.MoveToNext();
lineEnd.MoveToCurrentLineEnd();
}
this.FlushBoxes(lineStart, textRange.EndPosition);
searchStart.MoveToPosition(textRange.EndPosition);
if (searchStart >= searchEnd)
{
break;
}
textRange = textSearch.Find(word, searchStart, searchEnd);
}
}
private RadDropDownMenu BuildContextMenu(SpanLayoutBox spanBox)
{
RadDropDownMenu menu = new RadDropDownMenu();
RadMenuItem menuItem;
if (this.Document.Selection.IsEmpty && this.IsSpellCheckingEnabled && spanBox != null)
{
this.Document.CaretPosition.MoveToInline(spanBox, 0);
string spanBoxTextAlphaNumericOnly = String.Concat(spanBox.Text.TakeWhile(c => char.IsLetterOrDigit(c)));
if (spanBoxTextAlphaNumericOnly.Length > 0 && !this.ControlSpellChecker.SpellChecker.CheckWordIsCorrect(spanBoxTextAlphaNumericOnly))
{
string[] suggestions = (string[])this.ControlSpellChecker.SpellChecker.GetSuggestions(spanBox.Text);
if (suggestions.Length <= 0)
{
menuItem = new RadMenuItem("(No Spelling Suggestions)");
menuItem.Enabled = false;
menu.Items.Add(menuItem);
}
foreach (string suggestion in suggestions)
{
menuItem = new RadMenuItem(suggestion);
menuItem.Click += (object sender, EventArgs e) => { this.ReplaceCurrentWord(spanBox, (sender as RadMenuItem).Text); };
menu.Items.Add(menuItem);
}
menu.Items.Add(new SeparatorElement());
menuItem = new RadMenuItem("Add to Dictionary");
menuItem.Click += (object sender, EventArgs e) => { this.ControlSpellChecker.SpellChecker.AddWord(spanBoxTextAlphaNumericOnly); };
menu.Items.Add(menuItem);
menu.Items.Add(new SeparatorElement());
}
}
menuItem = new RadMenuItem("Undo");
menuItem.Click += (object sender, EventArgs e) => { this.Undo(); };
menu.Items.Add(menuItem);
menu.Items.Add(new SeparatorElement());
menuItem = new RadMenuItem("Cut");
menuItem.Click += (object sender, EventArgs e) => { this.Cut(); };
menu.Items.Add(menuItem);
menuItem = new RadMenuItem("Copy");
menuItem.Click += (object sender, EventArgs e) => { this.Copy(); };
menu.Items.Add(menuItem);
menuItem = new RadMenuItem("Paste");
menuItem.Click += (object sender, EventArgs e) => { this.Paste(); };
menu.Items.Add(menuItem);
menuItem = new RadMenuItem("Delete");
menuItem.Click += (object sender, EventArgs e) => { this.Delete(false); };
menu.Items.Add(menuItem);
menu.Items.Add(new SeparatorElement());
menuItem = new RadMenuItem("Select All");
menuItem.Click += (object sender, EventArgs e) => { this.Document.Selection.SelectAll(); };
menu.Items.Add(menuItem);
return(menu);
}
