public TerminalEmulator(int cols, int lines)
{
_inv_lock = new object();
_font = new FontGroup(new Font[] { new UnicodeFont(new System.Drawing.Font("Consolas", 16.0F), new PointF()) }, new SizeF(10.0F, 20.0F));
_chars = new TerminalChars(this, cols, lines);
SetStyle(ControlStyles.ResizeRedraw, true);
DoubleBuffered = true;
InitializeComponent();
}
internal TerminalChars(TerminalEmulator parent, int cols, int lines, TerminalChars src)
{
_parent = parent;
_size.col = cols;
_size.line = lines;
_char = new TerminalChar[_size.line, _size.col];
am = src.am;
fg = src.fg;
bg = src.bg;
for (int i = 0; i < Math.Min(_size.line, src._size.line); i++)
{
for (int j = 0; j < Math.Min(_size.col, src._size.col); j++)
{
_char[i, j] = src._char[i, j];
}
for (int j = src._size.col; j < _size.col; j++)
{
_char[i, j] = new TerminalCharSpace(bg);
}
}
for (int i = src._size.line; i < _size.line; i++)
{
for (int j = 0; j < _size.col; j++)
{
_char[i, j] = _char[i, j] = new TerminalCharSpace(bg);
}
}
}
protected void DrawChar(TerminalChars chars, Graphics graphics, int i, int j, bool draw_second_part)
{
if (chars[i, j].DoubleWidth) // a width char
{
SizeF t = Font.Size;
t.Width *= 2;
RectangleF rec = new RectangleF(new PointF(j * Font.Size.Width, i * Font.Size.Height), t);
chars[i, j].Draw(graphics, Font, rec);
}
else if (draw_second_part && chars[i, j].Partial) // second part of width char
{
SizeF t = Font.Size;
t.Width *= 2;
RectangleF rec = new RectangleF(new PointF((j - 1) * Font.Size.Width, i * Font.Size.Height), t);
chars[i, j - 1].Draw(graphics, Font, rec);
}
else // a normal char
{
RectangleF rec = new RectangleF(new PointF(j * Font.Size.Width, i * Font.Size.Height), Font.Size);
chars[i, j].Draw(graphics, Font, rec);
}
}
internal void invalidate(TerminalChars.Cursor pos)
{
invalidate(pos.line, pos.col);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case WM_IME_STARTCOMPOSITION:
_ime = new TerminalChars(this, Color.Red, Color.Transparent, cols, lines);
return;
case WM_IME_ENDCOMPOSITION:
_ime = null;
Invalidate();
return;
case WM_IME_COMPOSITION:
if (_ime != null)
{
IntPtr hIMC = ImmGetContext(Handle);
if ((((int)m.LParam) & GCS_COMPSTR) != 0)
{
int dwSize = ImmGetCompositionString(hIMC, GCS_COMPSTR, null, 0);
byte[] bs = new byte[dwSize];
ImmGetCompositionString(hIMC, GCS_COMPSTR, bs, bs.Length);
string str = UnicodeEncoding.Unicode.GetString(bs);
_ime.clear();
_ime.cursor = _chars._cursor;
_ime.bg = Color.Black;
_ime.fg = Color.Red;
foreach (char c in str)
{
_ime.put(c, 0);
}
_ime.bg = Color.Transparent;
_ime.fg = Color.Red;
}
if ((((int)m.LParam) & GCS_CURSORPOS) != 0)
{
_ime.cursor = _chars._cursor;
for (int pos = ImmGetCompositionString(hIMC, GCS_CURSORPOS, null, 0); pos != 0; --pos)
{
_ime.advanceVisible();
}
}
CANDIDATEFORM l = new CANDIDATEFORM();
l.dwIndex = 0;
l.dwStyle = CFS_CANDIDATEPOS;
l.ptCurrentPos.X = (int)(10 + _ime.cursor.col * Font.Size.Width);
l.ptCurrentPos.Y = (int)(10 + _ime.cursor.line * Font.Size.Height);
ImmSetCandidateWindow(hIMC, ref l);
ImmReleaseContext(Handle, hIMC);
}
base.WndProc(ref m);
return;
default:
base.WndProc(ref m);
return;
}
}
private void SelectRange(out TerminalChars.Cursor begin, out TerminalChars.Cursor end)
{
if (_begin.GreaterThan(_end))
{
begin = _end;
end = _begin;
}
else
{
begin = _begin;
end = _end;
}
if (_chars[begin].Partial) begin.col -= 1;
if (_chars[end].DoubleWidth) end.col += 1;
}
