private void Button_DeDent_Click(object sender, RoutedEventArgs e)
{
bool isFirstLine = true;
int dedentedAmount = 0;
int firstLine = 0, lastLine = 0;
int savedSelectionLength = TextBox_Code.SelectionLength;
int newSelectionStart = TextBox_Code.SelectionStart;
int charCount = 0;
SwapTabsForSpaces();
string[] lines = ToArray(TextBox_Code.Text);
GetLineRange(lines, ref firstLine, ref lastLine);
for (int i = 0; i < lines.Length; i++)
{
if (i >= firstLine && i <= lastLine)
{
int leadingCount = GetLeadingWhiteSpaceCount(lines[i]);
if (leadingCount >= TAB_SIZE)
{
lines[i] = lines[i].Substring(TAB_SIZE);
dedentedAmount = TAB_SIZE;
}
else if (leadingCount > 0)
{
lines[i] = lines[i].Substring(leadingCount);
dedentedAmount = leadingCount;
}
charCount += lines[i].Length + Environment.NewLine.Length;
if (isFirstLine)
{
newSelectionStart = (charCount - (lines[i].Length + Environment.NewLine.Length)) + GetLeadingWhiteSpaceCount(lines[i]);
isFirstLine = false;
}
else
{
if (savedSelectionLength > dedentedAmount)
{
savedSelectionLength -= dedentedAmount;
}
}
dedentedAmount = 0;
}
else
{
charCount += lines[i].Length + Environment.NewLine.Length;
}
}
TextBox_Code.Text = ToText(lines);
TextBox_Code.SelectionStart = newSelectionStart;
TextBox_Code.SelectionLength = savedSelectionLength;
TextBox_Code.Focus();
}
private void Button_FixIndentation_Click(object sender, RoutedEventArgs e)
{
SwapTabsForSpaces();
if (TextBox_Code.LineCount > 1)
{
string[] lines = ToArray(TextBox_Code.Text);
int firsLineOffset = GetLeadingWhiteSpaceCount(lines[0]);
if (firsLineOffset > 0)
{
DeDent(firsLineOffset);
}
lines = ToArray(TextBox_Code.Text);
int lastLineOffset = GetLeadingWhiteSpaceCount(lines[lines.Length - 1]);
if (lastLineOffset > 0)
{
DeDent(lastLineOffset);
}
}
TextBox_Code.Focus();
}
