Control SetCaret(TextArea textArea)
{
var control = new Button { Text = "Set Caret" };
control.Click += (sender, e) => {
textArea.CaretIndex = textArea.Text.Length / 2;
textArea.Focus();
};
return control;
}
Control ReplaceSelected(TextArea textArea)
{
var control = new Button { Text = "Replace selected text" };
control.Click += (sender, e) => {
textArea.SelectedText = "Some inserted text!";
textArea.Focus();
};
return control;
}
Control SelectAll(TextArea text)
{
var control = new Button { Text = "Select All" };
control.Click += (sender, e) => {
text.SelectAll();
text.Focus();
};
return control;
}
Control SetSelectedText(TextArea textArea)
{
var control = new Button { Text = "Set selected text" };
control.Click += (sender, e) => {
var text = textArea.Text;
// select the last half of the text
textArea.Selection = new Range(text.Length / 2, text.Length / 2 + 1);
textArea.Focus();
};
return control;
}
public NoteView(string dir)
{
directory = dir;
notes = new List<Note>();
ListBox = new ListBox { Style = "ListNative" };
TextArea = new TextArea { Style = "TextConsole" };
var updatingNote = false;
TextArea.TextChanged += delegate
{
if (ListBox.SelectedIndex < 0)
return;
var note = notes[ListBox.SelectedIndex];
bool changed = note.Changed;
note.Content = TextArea.Text;
if (changed != note.Changed)
ListBox.Invalidate();
};
TextArea.SelectionChanged += delegate
{
if (ListBox.SelectedIndex < 0 || updatingNote)
return;
notes[ListBox.SelectedIndex].Selection = TextArea.Selection;
};
ListBox.SelectedIndexChanged += delegate
{
if (ListBox.SelectedIndex < 0)
return;
var note = notes[ListBox.SelectedIndex];
updatingNote = true;
TextArea.Text = note.Content;
TextArea.Selection = note.Selection;
TextArea.Focus();
updatingNote = false;
};
}
/// <summary>
/// 查找字符串
/// </summary>
/// <param name="textArea"></param>
/// <param name="findContent"></param>
/// <param name="curIndex"></param>
/// <param name="caseSensitive"></param>
/// <param name="isUp"></param>
public void FindText(TextArea textArea, string findContent, int curIndex, bool caseSensitive, bool isUp)
{
string searchText;
// pre
if (isUp)
{
searchText = textArea.Text.Substring(0, curIndex);
}
else
{
curIndex += textArea.Selection.Length();
searchText = textArea.Text.Substring(curIndex);
}
if (!caseSensitive)
{
searchText = searchText.ToLower();
findContent = findContent.ToLower();
}
// find
var index = isUp
? searchText.LastIndexOf(findContent, StringComparison.Ordinal)
: searchText.IndexOf(findContent, StringComparison.Ordinal);
if (index != -1)
{
var selectionStart = isUp ? index : index + curIndex;
textArea.Selection = new Range<int>(selectionStart, selectionStart + findContent.Length - 1);
textArea.Focus();
}
else
{
MessageBox.Show(string.Format("Not Found \"{0}\" ", findContent));
}
}
