/// <summary>
/// Writes collected data to console screen buffer, but paints specified rect only.
/// </summary>
public virtual void Flush(Rect affectedRect)
{
if (stdOutputHandle != IntPtr.Zero)
{
// we are in windows environment
SMALL_RECT rect = new SMALL_RECT((short)affectedRect.x, (short)affectedRect.y,
(short)(affectedRect.width + affectedRect.x), (short)(affectedRect.height + affectedRect.y));
if (!Win32.WriteConsoleOutputCore(stdOutputHandle, buffer, new COORD((short)size.Width, (short)size.Height),
new COORD((short)affectedRect.x, (short)affectedRect.y), ref rect))
{
throw new InvalidOperationException(string.Format("Cannot write to console : {0}", Win32.GetLastErrorMessage()));
}
}
else
{
// we are in linux
for (int i = 0; i < affectedRect.width; i++)
{
int x = i + affectedRect.x;
for (int j = 0; j < affectedRect.height; j++)
{
int y = j + affectedRect.y;
// todo : convert attributes and optimize rendering
bool fgIntensity;
short index = NCurses.winAttrsToNCursesAttrs(buffer[y, x].Attributes,
out fgIntensity);
if (fgIntensity)
{
NCurses.attrset(
(int)(NCurses.COLOR_PAIR(index) | NCurses.A_BOLD));
}
else
{
NCurses.attrset(
(int)NCurses.COLOR_PAIR(index));
}
char outChar = buffer[y, x].UnicodeChar != '\0' ? (buffer[y, x].UnicodeChar) : ' ';
NCurses.mvaddstr(y, x, new string(outChar, 1));
}
}
NCurses.refresh();
}
}
