private void ProcessKeyDownOnCodeEditor(PreviewKeyDownEventArgs e, FunctionBody body)
{
if (body == null)
{
return;
}
if (e.KeyCode == Keys.Enter)
{
if (body.Rows.Count == 0)
{
body.RowIndex = 0;
body.ColumnIndex = 0;
body.Rows.Add(new FunctionRow());
}
else
{
if (body.ColumnIndex > body.Rows[body.RowIndex].Name.Length)
{
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
}
if (body.ColumnIndex == body.Rows[body.RowIndex].Name.Length)
{
body.RowIndex++;
body.Rows.Insert(body.RowIndex, new FunctionRow());
body.ColumnIndex = 0;
}
else
{
var row = body.Rows[body.RowIndex];
var name = row.Name;
row.Name = name.Substring(0, body.ColumnIndex);
body.RowIndex++;
body.Rows.Insert(body.RowIndex, new FunctionRow()
{
Name = name.Substring(body.ColumnIndex)
});
body.ColumnIndex = 0;
}
}
Refresh();
}
else if (e.KeyCode == Keys.Up)
{
int prevCol = body.ColumnIndex;
int prevRow = body.RowIndex;
body.RowIndex--;
if (body.RowIndex < 0)
{
body.RowIndex = 0;
}
if (e.Shift)
{
if (body.SelectionRowIndex == -1)
{
body.SelectionRowIndex = prevRow;
body.SelectionColumnIndex = prevCol;
}
}
else
{
body.SelectionRowIndex = -1;
body.SelectionColumnIndex = -1;
}
Refresh();
}
else if (e.KeyCode == Keys.Down)
{
int prevCol = body.ColumnIndex;
int prevRow = body.RowIndex;
body.RowIndex++;
if (body.RowIndex >= body.Rows.Count)
{
body.RowIndex = body.Rows.Count - 1;
}
if (e.Shift)
{
if (body.SelectionRowIndex == -1)
{
body.SelectionRowIndex = prevRow;
body.SelectionColumnIndex = prevCol;
}
}
else
{
body.SelectionRowIndex = -1;
body.SelectionColumnIndex = -1;
}
Refresh();
}
else if (e.KeyCode == Keys.Left)
{
if (body.Rows.Count == 0)
{
return;
}
if (body.ColumnIndex > body.Rows[body.RowIndex].Name.Length)
{
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
}
int prevCol = body.ColumnIndex;
int prevRow = body.RowIndex;
body.ColumnIndex--;
if (body.ColumnIndex < 0)
{
body.RowIndex--;
if (body.RowIndex < 0)
{
body.RowIndex = 0;
body.ColumnIndex = 0;
}
else
{
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
}
}
if (e.Shift)
{
if (body.SelectionRowIndex == -1)
{
body.SelectionRowIndex = prevRow;
body.SelectionColumnIndex = prevCol;
}
}
else
{
body.SelectionRowIndex = -1;
body.SelectionColumnIndex = -1;
}
Refresh();
}
else if (e.KeyCode == Keys.Right)
{
if (body.Rows.Count == 0)
{
return;
}
if (body.ColumnIndex > body.Rows[body.RowIndex].Name.Length)
{
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
}
int prevCol = body.ColumnIndex;
int prevRow = body.RowIndex;
body.ColumnIndex++;
if (body.ColumnIndex > body.Rows[body.RowIndex].Name.Length)
{
body.RowIndex++;
if (body.RowIndex >= body.Rows.Count)
{
body.RowIndex = body.Rows.Count - 1;
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
}
else
{
body.ColumnIndex = 0;
}
}
if (e.Shift)
{
if (body.SelectionRowIndex == -1)
{
body.SelectionRowIndex = prevRow;
body.SelectionColumnIndex = prevCol;
}
}
else
{
body.SelectionRowIndex = -1;
body.SelectionColumnIndex = -1;
}
Refresh();
}
else if (e.KeyCode == Keys.End)
{
if (body.Rows.Count > 0)
{
body.ColumnIndex = body.Rows[body.RowIndex].Name.Length;
Refresh();
}
}
else if (e.KeyCode == Keys.Home)
{
body.ColumnIndex = 0;
Refresh();
}
else if (e.KeyCode == Keys.Delete)
{
if (body.Rows.Count == 0)
{
return;
}
var row = body.Rows[body.RowIndex];
if (row.Name.Length == 0)
{
// body.RowIndex++;
body.Rows.Remove(row);
body.ColumnIndex = 0;
}
else
{
int index = body.ColumnIndex;
if (body.ColumnIndex > row.Name.Length)
{
index = row.Name.Length;
}
if (index == row.Name.Length)
{
if (body.RowIndex == body.Rows.Count - 1)
{
// last row??
}
else
{
var row2 = body.Rows[body.RowIndex + 1];
body.Rows.Remove(row2);
row.Name += row2.Name;
}
}
else
{
row.Name = row.Name.Remove(index, 1);
}
}
Refresh();
}
}
private void ProcessKeyPressOnCodeEditor(KeyPressEventArgs e, FunctionBody body)
{
if (body == null)
{
return;
}
if (e.KeyChar == '\r')
{
return;
}
if (e.KeyChar == '\b')
{
if (body.Rows.Count == 0)
{
return;
}
var row = body.Rows[body.RowIndex];
if (row.Name.Length == 0)
{
body.RowIndex--;
body.Rows.Remove(row);
if (body.Rows.Count > 0)
{
body.ColumnIndex = body.Rows.Last().Name.Length;
}
else
{
body.ColumnIndex = 0;
}
}
else
{
int index = body.ColumnIndex;
if (body.ColumnIndex > row.Name.Length)
{
index = row.Name.Length;
}
if (index - 1 < 0)
{
if (body.RowIndex > 0)
{
body.RowIndex--;
body.Rows.Remove(row);
if (body.Rows.Count > 0)
{
body.ColumnIndex = body.Rows.Last().Name.Length;
}
else
{
body.ColumnIndex = 0;
}
if (body.RowIndex <= -1)
{
body.RowIndex = 0;
}
else
{
body.Rows[body.RowIndex].Name += row.Name;
}
}
}
else
{
row.Name = row.Name.Remove(index - 1, 1);
body.ColumnIndex--;
}
}
Refresh();
}
else
{
if (body.Rows.Count == 0)
{
body.RowIndex = 0;
body.ColumnIndex = 0;
body.Rows.Add(new FunctionRow());
}
var row = body.Rows[body.RowIndex];
int index = body.ColumnIndex;
if (body.ColumnIndex > row.Name.Length)
{
index = row.Name.Length;
}
row.Name = row.Name.Insert(index, e.KeyChar.ToString());
var size = this.CreateGraphics().MeasureString(row.Name, this.Font);
if (size.Width + 12 > body.Owner.Width)
{
body.Owner.Width = size.Width + 12;
}
body.ColumnIndex++;
Refresh();
}
}
public Function()
{
Body = new FunctionBody(this);
}
