private void ShowChar(Graphics CurGraphics, Char CurChar, Int32 Y, Int32 X, CharAttribStruct CurAttribs)
{
if (CurChar == '\0')
{
return;
}
Color CurFGColor = Color.White;
Color CurBGColor = Color.Black;
this.AssignColors(CurAttribs, ref CurFGColor, ref CurBGColor);
if ((CurBGColor != this.BackColor && (this.Modes.Flags & uc_Mode.LightBackground) == 0) ||
(CurBGColor != this.ForeColor && (this.Modes.Flags & uc_Mode.LightBackground) > 0))
{
// Erase the current Character underneath the cursor postion
this.EraseBuffer.Clear(CurBGColor);
// paint a rectangle over the cursor position in the character's BGColor
CurGraphics.DrawImageUnscaled(this.EraseBitmap, X, Y);
}
if (CurAttribs.IsUnderscored)
{
CurGraphics.DrawLine(new Pen(CurFGColor, 1), X, Y + this.UnderlinePos, X + this.CharSize.Width,
Y + this.UnderlinePos);
}
if (CurAttribs.IsDECSG &&
(CurChar == 'l' ||
CurChar == 'q' ||
CurChar == 'w' ||
CurChar == 'k' ||
CurChar == 'x' ||
CurChar == 't' ||
CurChar == 'n' ||
CurChar == 'u' ||
CurChar == 'm' ||
CurChar == 'v' ||
CurChar == 'j' ||
CurChar == '`'))
{
this.ShowSpecialChar(CurGraphics, CurChar, Y, X, CurFGColor, CurBGColor);
return;
}
CurGraphics.DrawString(
CurChar.ToString(),
this.Font,
new SolidBrush(CurFGColor),
X - this.DrawStringOffset.X,
Y - this.DrawStringOffset.Y);
}
public uc_CaretAttribs(
Point p1,
uc_Chars.Sets p2,
uc_Chars.Sets p3,
uc_Chars.Sets p4,
uc_Chars.Sets p5,
CharAttribStruct p6)
{
this.Pos = p1;
this.G0Set = p2;
this.G1Set = p3;
this.G2Set = p4;
this.G3Set = p5;
this.Attribs = p6;
}
public uc_CaretAttribs(
Point p1,
uc_Chars.Sets p2,
uc_Chars.Sets p3,
uc_Chars.Sets p4,
uc_Chars.Sets p5,
CharAttribStruct p6)
{
this.Pos = p1;
this.G0Set = p2;
this.G1Set = p3;
this.G2Set = p4;
this.G3Set = p5;
this.Attribs = p6;
}
private void ShowCaret(Graphics CurGraphics)
{
Int32 X = this.Caret.Pos.X;
Int32 Y = this.Caret.Pos.Y;
if (this.Caret.IsOff == true)
{
return;
}
// paint a rectangle over the cursor position
CurGraphics.DrawImageUnscaled(this.Caret.Bitmap, X * (Int32)this.CharSize.Width, Y * (Int32)this.CharSize.Height);
// if we don't have a char to redraw then leave
if (this.CharGrid[Y][X] == '\0')
{
return;
}
CharAttribStruct CurAttribs = new CharAttribStruct();
CurAttribs.UseAltColor = true;
CurAttribs.GL = this.AttribGrid[Y][X].GL;
CurAttribs.GR = this.AttribGrid[Y][X].GR;
CurAttribs.GS = this.AttribGrid[Y][X].GS;
if (this.AttribGrid[Y][X].UseAltBGColor == false)
{
CurAttribs.AltColor = this.BackColor;
}
else if (this.AttribGrid[Y][X].UseAltBGColor == true)
{
CurAttribs.AltColor = this.AttribGrid[Y][X].AltBGColor;
}
CurAttribs.IsUnderscored = this.AttribGrid[Y][X].IsUnderscored;
CurAttribs.IsDECSG = this.AttribGrid[Y][X].IsDECSG;
// redispay the current char in the background colour
this.ShowChar(
CurGraphics,
this.CharGrid[Y][X],
Caret.Pos.Y * this.CharSize.Height,
Caret.Pos.X * this.CharSize.Width,
CurAttribs);
}
private void AssignColors(CharAttribStruct CurAttribs, ref Color CurFGColor, ref Color CurBGColor)
{
CurFGColor = this.ForeColor;
CurBGColor = this.BackColor;
if (CurAttribs.IsBlinking == true)
{
CurFGColor = this.BlinkColor;
}
// bold takes precedence over the blink color
if (CurAttribs.IsBold == true)
{
CurFGColor = this.BoldColor;
}
if (CurAttribs.UseAltColor == true)
{
CurFGColor = CurAttribs.AltColor;
}
// alternate color takes precedence over the bold color
if (CurAttribs.UseAltBGColor == true)
{
CurBGColor = CurAttribs.AltBGColor;
}
if (CurAttribs.IsInverse == true)
{
Color TmpColor = CurBGColor;
CurBGColor = CurFGColor;
CurFGColor = TmpColor;
}
// If light background is on and we're not using alt colors
// reverse the colors
if ((this.Modes.Flags & uc_Mode.LightBackground) > 0 &&
CurAttribs.UseAltColor == false && CurAttribs.UseAltBGColor == false)
{
Color TmpColor = CurBGColor;
CurBGColor = CurFGColor;
CurFGColor = TmpColor;
}
}
private void AssignColors(CharAttribStruct CurAttribs, ref Color CurFGColor, ref Color CurBGColor)
{
CurFGColor = this.ForeColor;
CurBGColor = this.BackColor;
if (CurAttribs.IsBlinking == true)
{
CurFGColor = this.BlinkColor;
}
// bold takes precedence over the blink color
if (CurAttribs.IsBold == true)
{
CurFGColor = this.BoldColor;
}
if (CurAttribs.UseAltColor == true)
{
CurFGColor = CurAttribs.AltColor;
}
// alternate color takes precedence over the bold color
if (CurAttribs.UseAltBGColor == true)
{
CurBGColor = CurAttribs.AltBGColor;
}
if (CurAttribs.IsInverse == true)
{
Color TmpColor = CurBGColor;
CurBGColor = CurFGColor;
CurFGColor = TmpColor;
}
// If light background is on and we're not using alt colors
// reverse the colors
if ((this.Modes.Flags & uc_Mode.LightBackground) > 0 &&
CurAttribs.UseAltColor == false && CurAttribs.UseAltBGColor == false)
{
Color TmpColor = CurBGColor;
CurBGColor = CurFGColor;
CurFGColor = TmpColor;
}
}
internal void ReplaceValues(int rowIndex, string newChars, CharAttribStruct[] newAttributes)
{
this.Characters[rowIndex] = newChars;
this.Attributes[rowIndex] = newAttributes;
}
internal void Insert(int index, string line, CharAttribStruct[] lineAttributes)
{
this.Characters.Insert(index, line);
this.Attributes.Insert(index, lineAttributes);
}
internal void Add(string line, CharAttribStruct[] lineAttributes)
{
this.Characters.Add(line);
this.Attributes.Add(lineAttributes);
}
private void ShowChar(System.Drawing.Graphics CurGraphics, System.Char CurChar, System.Int32 Y, System.Int32 X, CharAttribStruct CurAttribs)
{
if (CurChar == '\0')
{
return;
}
System.Drawing.Color CurFGColor = System.Drawing.Color.White;
System.Drawing.Color CurBGColor = System.Drawing.Color.Black;
this.AssignColors (CurAttribs, ref CurFGColor, ref CurBGColor);
if ((CurBGColor != this.BackColor && (this.Modes.Flags & uc_Mode.LightBackground) == 0) ||
(CurBGColor != this.FGColor && (this.Modes.Flags & uc_Mode.LightBackground) > 0))
{
// Erase the current Character underneath the cursor postion
this.EraseBuffer.Clear (CurBGColor);
// paint a rectangle over the cursor position in the character's BGColor
CurGraphics.DrawImageUnscaled (
this.EraseBitmap,
X,
Y);
}
if (CurAttribs.IsUnderscored)
{
CurGraphics.DrawLine (new System.Drawing.Pen (CurFGColor, 1),
X, Y + this.UnderlinePos,
X + this.CharSize.Width, Y + this.UnderlinePos);
}
if ((CurAttribs.IsDECSG == true) &&
(CurChar == 'l' ||
CurChar == 'q' ||
CurChar == 'w' ||
CurChar == 'k' ||
CurChar == 'x' ||
CurChar == 't' ||
CurChar == 'n' ||
CurChar == 'u' ||
CurChar == 'm' ||
CurChar == 'v' ||
CurChar == 'j' ||
CurChar == '`'))
{
this.ShowSpecialChar (
CurGraphics,
CurChar,
Y,
X,
CurFGColor,
CurBGColor);
return;
}
CurGraphics.DrawString (
CurChar.ToString (),
this.Font,
new System.Drawing.SolidBrush (CurFGColor),
X - this.DrawStringOffset.X,
Y - this.DrawStringOffset.Y);
}
private void ShowCaret(System.Drawing.Graphics CurGraphics)
{
System.Int32 X = this.Caret.Pos.X;
System.Int32 Y = this.Caret.Pos.Y;
if (this.Caret.IsOff == true)
{
return;
}
// paint a rectangle over the cursor position
CurGraphics.DrawImageUnscaled (
this.Caret.Bitmap,
X * (int) this.CharSize.Width,
Y * (int) this.CharSize.Height);
// if we don't have a char to redraw then leave
if (this.CharGrid[Y][X] == '\0')
{
return;
}
CharAttribStruct CurAttribs = new CharAttribStruct ();
CurAttribs.UseAltColor = true;
CurAttribs.GL = this.AttribGrid[Y][X].GL;
CurAttribs.GR = this.AttribGrid[Y][X].GR;
CurAttribs.GS = this.AttribGrid[Y][X].GS;
if (this.AttribGrid[Y][X].UseAltBGColor == false)
{
CurAttribs.AltColor = this.BackColor;
}
else if (this.AttribGrid[Y][X].UseAltBGColor == true)
{
CurAttribs.AltColor = this.AttribGrid[Y][X].AltBGColor;
}
CurAttribs.IsUnderscored = this.AttribGrid[Y][X].IsUnderscored;
CurAttribs.IsDECSG = this.AttribGrid[Y][X].IsDECSG;
// redispay the current char in the background colour
this.ShowChar (
CurGraphics,
this.CharGrid[Y][X],
Caret.Pos.Y * this.CharSize.Height,
Caret.Pos.X * this.CharSize.Width,
CurAttribs);
}
private void CommandRouter(object Sender, ParserEventArgs e)
{
switch (e.Action)
{
case Actions.Print:
this.PrintChar (e.CurChar);
//System.Console.Write ("{0}", e.CurChar);
break;
case Actions.Execute:
this.ExecuteChar (e.CurChar);
break;
case Actions.Dispatch:
break;
default:
break;
}
System.Int32 Param = 0;
System.Int32 Inc = 1; // increment
switch (e.CurSequence)
{
case "":
break;
case "\x1b" + "7": //DECSC Save Cursor position and attributes
this.SavedCarets.Add (new uc_CaretAttribs (
this.Caret.Pos,
this.G0.Set,
this.G1.Set,
this.G2.Set,
this.G3.Set,
this.CharAttribs));
break;
case "\x1b" + "8": //DECRC Restore Cursor position and attributes
this.Caret.Pos = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).Pos;
this.CharAttribs = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).Attribs;
this.G0.Set = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).G0Set;
this.G1.Set = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).G1Set;
this.G2.Set = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).G2Set;
this.G3.Set = ((uc_CaretAttribs) this.SavedCarets[this.SavedCarets.Count - 1]).G3Set;
this.SavedCarets.RemoveAt (this.SavedCarets.Count - 1);
break;
case "\x1b~": //LS1R Locking Shift G1 -> GR
this.CharAttribs.GR = G1;
break;
case "\x1bn": //LS2 Locking Shift G2 -> GL
this.CharAttribs.GL = G2;
break;
case "\x1b}": //LS2R Locking Shift G2 -> GR
this.CharAttribs.GR = G2;
break;
case "\x1bo": //LS3 Locking Shift G3 -> GL
this.CharAttribs.GL = G3;
break;
case "\x1b|": //LS3R Locking Shift G3 -> GR
this.CharAttribs.GR = G3;
break;
case "\x1b#8": //DECALN
e.CurParams.Elements.Add ("1");
e.CurParams.Elements.Add (this._rows.ToString ());
this.SetScrollRegion (e.CurParams);
// put E's on the entire screen
for (int y = 0; y < this._rows; y++)
{
this.CaretToAbs (y, 0);
for (int x = 0; x < this._cols; x++)
{
this.PrintChar ('E');
}
}
break;
case "\x1b=": // Keypad to Application mode
this.Modes.Flags = this.Modes.Flags | uc_Mode.KeypadAppln;
break;
case "\x1b>": // Keypad to Numeric mode
this.Modes.Flags = this.Modes.Flags ^ uc_Mode.KeypadAppln;
break;
case "\x1b[B": // CUD
if (e.CurParams.Count () > 0)
{
Inc = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
if (Inc == 0) Inc = 1;
this.CaretToAbs (this.Caret.Pos.Y + Inc, this.Caret.Pos.X);
break;
case "\x1b[A": // CUU
if (e.CurParams.Count () > 0)
{
Inc = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
if (Inc == 0) Inc = 1;
this.CaretToAbs (this.Caret.Pos.Y - Inc, this.Caret.Pos.X);
break;
case "\x1b[C": // CUF
if (e.CurParams.Count () > 0)
{
Inc = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
if (Inc == 0) Inc = 1;
this.CaretToAbs (this.Caret.Pos.Y, this.Caret.Pos.X + Inc);
break;
case "\x1b[D": // CUB
if (e.CurParams.Count () > 0)
{
Inc = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
if (Inc == 0) Inc = 1;
this.CaretToAbs (this.Caret.Pos.Y, this.Caret.Pos.X - Inc);
break;
case "\x1b[H": // CUP
case "\x1b[f": // HVP
System.Int32 X = 0;
System.Int32 Y = 0;
if (e.CurParams.Count () > 0)
{
Y = System.Convert.ToInt32 (e.CurParams.Elements[0]) - 1;
}
if (e.CurParams.Count () > 1)
{
X = System.Convert.ToInt32 (e.CurParams.Elements[1]) - 1;
}
this.CaretToRel (Y, X);
break;
case "\x1b[J":
if (e.CurParams.Count () > 0)
{
Param = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
this.ClearDown (Param);
break;
case "\x1b[K":
if (e.CurParams.Count () > 0)
{
Param = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
this.ClearRight (Param);
break;
case "\x1b[L": // INSERT LINE
this.InsertLine (e.CurParams);
break;
case "\x1b[M": // DELETE LINE
this.DeleteLine (e.CurParams);
break;
case "\x1bN": // SS2 Single Shift (G2 -> GL)
this.CharAttribs.GS = this.G2;
break;
case "\x1bO": // SS3 Single Shift (G3 -> GL)
this.CharAttribs.GS = this.G3;
//System.Console.WriteLine ("SS3: GS = {0}", this.CharAttribs.GS);
break;
case "\x1b[m":
this.SetCharAttribs (e.CurParams);
break;
case "\x1b[?h":
this.SetqmhMode (e.CurParams);
break;
case "\x1b[?l":
this.SetqmlMode (e.CurParams);
break;
case "\x1b[c": // DA Device Attributes
// this.DispatchMessage (this, "\x1b[?64;1;2;6;7;8;9c");
this.DispatchMessage (this, "\x1b[?6c");
break;
case "\x1b[g":
this.ClearTabs (e.CurParams);
break;
case "\x1b[h":
this.SethMode (e.CurParams);
break;
case "\x1b[l":
this.SetlMode (e.CurParams);
break;
case "\x1b[r": // DECSTBM Set Top and Bottom Margins
this.SetScrollRegion (e.CurParams);
break;
case "\x1b[t": // DECSLPP Set Lines Per Page
if (e.CurParams.Count () > 0)
{
Param = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
if (Param > 0) this.SetSize (Param, this._cols);
break;
case "\x1b" + "D": // IND
if (e.CurParams.Count () > 0)
{
Param = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
this.Index (Param);
break;
case "\x1b" + "E": // NEL
this.LineFeed ();
this.CarriageReturn ();
break;
case "\x1bH": // HTS
this.TabSet ();
break;
case "\x1bM": // RI
if (e.CurParams.Count () > 0)
{
Param = System.Convert.ToInt32 (e.CurParams.Elements[0]);
}
this.ReverseIndex (Param);
break;
default:
//System.Console.Write ("unsupported VT sequence {0} happened\n", e.CurSequence);
break;
}
if (e.CurSequence.StartsWith ("\x1b("))
{
this.SelectCharSet (ref this.G0.Set, e.CurSequence.Substring (2));
}
else if (e.CurSequence.StartsWith ("\x1b-") ||
e.CurSequence.StartsWith ("\x1b)"))
{
this.SelectCharSet (ref this.G1.Set, e.CurSequence.Substring (2));
}
else if (e.CurSequence.StartsWith ("\x1b.") ||
e.CurSequence.StartsWith ("\x1b*"))
{
this.SelectCharSet (ref this.G2.Set, e.CurSequence.Substring (2));
}
else if (e.CurSequence.StartsWith ("\x1b/") ||
e.CurSequence.StartsWith ("\x1b+"))
{
this.SelectCharSet (ref this.G3.Set, e.CurSequence.Substring (2));
}
}
