private void UpdateStatusBar(object sender, RoutedEventArgs e) //更新状态栏
{
//行列
int row = NotepadTextBox.GetLineIndexFromCharacterIndex(NotepadTextBox.CaretIndex);
int col = NotepadTextBox.CaretIndex - NotepadTextBox.GetCharacterIndexFromLineIndex(row);
CursorPosition.Text = "第 " + (row + 1) + " 行，" + "第 " + (col + 1) + " 列";
//缩放值
ZoomScaleDisplayer.Text = ZoomScale.ToString() + "%";
}
private void InsertDateTime(object sender, RoutedEventArgs e) //菜单-编辑-时间日期
{
if (NotepadTextBox.SelectionLength > 0) //若选中文本
{
this.TextDelete(this, null);
}
string result = NotepadTextBox.Text; //复制原编辑区副本
int cursorPos = NotepadTextBox.SelectionStart; //获取光标位置
string nowTime = DateTime.Now.ToString(); //获取当前时间
result = result.Insert(cursorPos, nowTime); //计算结果
NotepadTextBox.Text = result; //将结果放入编辑区
NotepadTextBox.SelectionStart = cursorPos + nowTime.Length; //重新定位光标
NotepadTextBox.Focus();
}
private void TextDelete(object sender, RoutedEventArgs e) //菜单-编辑-删除
{
int delNum = NotepadTextBox.SelectedText.Length;
if (delNum == 0)
{
return;
}
string result = NotepadTextBox.Text;
int cursorPos = NotepadTextBox.SelectionStart;
result = result.Remove(cursorPos, delNum);
NotepadTextBox.Text = result;
NotepadTextBox.SelectionStart = cursorPos;
NotepadTextBox.Focus();
}
private void SelectAll(object sender, RoutedEventArgs e) //菜单-编辑-全选
{
NotepadTextBox.SelectAll();
}
private void TextPaste(object sender, RoutedEventArgs e) //菜单-编辑-粘贴
{
NotepadTextBox.Paste();
}
private void TextCopy(object sender, RoutedEventArgs e) //菜单-编辑-复制
{
NotepadTextBox.Copy();
}
private void TextCut(object sender, RoutedEventArgs e) //菜单-编辑-剪切
{
NotepadTextBox.Cut();
}
private void Undo(object sender, RoutedEventArgs e) //菜单-编辑-撤销
{
NotepadTextBox.Undo();
}
