/// <summary>
/// Clear text screen.
/// </summary>
public override void Clear()
{
TextScreenHelpers.Debug("Clearing screen with value ");
TextScreenHelpers.DebugNumber(mTextClearCellValue);
IO.Memory.Fill(mTextClearCellValue);
mBackgroundClearCellValue = mTextClearCellValue;
}
/// <summary>
/// Creat new instance of the <see cref="TextScreen"/> class.
/// </summary>
public TextScreen()
{
mRAM = IO.Memory.Bytes;
// Set the Console default colors: White foreground on Black background, the default value of mClearCellValue is set there too as it is linked with the Color
SetColors(ConsoleColor.White, ConsoleColor.Black);
mBackgroundClearCellValue = mTextClearCellValue;
mRow2Addr = (uint)(Cols * 2);
mScrollSize = (uint)(Cols * (Rows - 1) * 2);
SetCursorSize(mCursorSize);
SetCursorVisible(mCursorVisible);
TextScreenHelpers.Debug("End of TextScreen..ctor");
}
public override void SetCursorSize(int value)
{
mCursorSize = value;
TextScreenHelpers.Debug("Changing cursor size to", value, "%");
// We need to transform value from a percentage to a value from 15 to 0
value = 16 - ((16 * value) / 100);
// This is the case in which value is in reality 1% and a for a truncation error we get 16 (invalid value)
if (value >= 16)
value = 15;
TextScreenHelpers.Debug("verticalSize is", value);
// Cursor Vertical Size Register here a value between 0x00 and 0x0F must be set with 0x00 meaning maximum size and 0x0F minimum
IO.Idx3.Byte = 0x0A;
IO.Data3.Byte = (byte)value;
// Cursor Horizontal Size Register we set it to 0x0F (100%) as a security measure is probably so already
IO.Idx3.Byte = 0x0B;
IO.Data3.Byte = 0x0F;
}
public TextScreen() {
if (this is TextScreen)
{
TextScreenHelpers.Debug("this is TextScreen");
}
else
{
TextScreenHelpers.Debug("ERROR: This is not of type TextScreen!");
}
mRAM = IO.Memory.Bytes;
// Set the Console default colors: White foreground on Black background, the default value of mClearCellValue is set there too as it is linked with the Color
SetColors(ConsoleColor.White, ConsoleColor.Black);
mRow2Addr = (UInt32)(Cols * 2);
mScrollSize = (UInt32)(Cols * (Rows - 1) * 2);
SetCursorSize(mCursorSize);
SetCursorVisible(mCursorVisible);
TextScreenHelpers.Debug("End of TextScreen..ctor");
}
