3 * - By John Hodge (thePowersGang)
6 * - Virtual Terminal - VT100 (Kinda) Emulation
11 #define sTerminal sVTerm
12 #include "../../../Usermode/Applications/gui_terminal_src/vt100.c"
14 void *Display_GetTermState(tTerminal *Term) {
15 return Term->VT100Info;
17 void Display_SetTermState(tTerminal *Term, void *State) {
18 Term->VT100Info = State;
21 void Display_SendInput(tTerminal *Term, const char *String)
23 PTY_SendInput(Term->PTY, String, strlen(String));
26 void Display_AddText(tTerminal *Term, size_t Length, const char *UTF8Text)
28 LOG("'%*C'", Length, UTF8Text);
29 VT_int_PutRawString(Term, (const void*)UTF8Text, Length);
31 void Display_Newline(tTerminal *Term, bool bCarriageReturn)
34 VT_int_PutChar(Term, '\n');
36 void Display_SetScrollArea(tTerminal *Term, int Start, int Count)
38 LOG("(%i,+%i)", Start, Count);
39 Term->ScrollTop = Start;
40 Term->ScrollHeight = Count;
42 void Display_ScrollDown(tTerminal *Term, int CountDown)
44 LOG("(%i)", CountDown);
45 VT_int_UpdateScreen(Term, 0);
46 if( Term->Flags & VT_FLAG_ALTBUF )
47 VT_int_ScrollText(Term, CountDown);
50 if(Term->ViewPos/Term->TextWidth + CountDown < 0)
52 if(Term->ViewPos/Term->TextWidth + CountDown > Term->TextHeight * (giVT_Scrollback + 1))
55 Term->ViewPos += Term->TextWidth * CountDown;
58 void Display_SetCursor(tTerminal *Term, int Row, int Col)
60 LOG("(R%i,C%i)", Row, Col);
61 VT_int_UpdateScreen(Term, 0);
62 int maxrows = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight;
63 ASSERTCR( Row, >=, 0, );
64 ASSERTCR( Row, <, maxrows, );
65 ASSERTCR( Col, >=, 0, );
66 ASSERTCR( Col, <, Term->TextWidth, );
67 *(Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos) = Row*Term->TextWidth + Col;
69 void Display_MoveCursor(tTerminal *Term, int RelRow, int RelCol)
71 LOG("(R+%i,C+%i)", RelRow, RelCol);
72 int *wrpos = (Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos);
74 // TODO: Support scrolling if cursor goes offscreen
75 // if( bScrollIfNeeded )
76 // Display_ScrollDown(extra);
85 int avail = *wrpos % Term->TextWidth;
91 size_t avail = Term->TextWidth - (*wrpos % Term->TextWidth);
99 int currow = *wrpos / Term->TextWidth;
100 int maxrows = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight;
103 if( RelRow < -currow )
108 if( currow + RelRow > maxrows-1 )
109 RelRow = maxrows-1 - currow;
111 *wrpos += RelRow*Term->TextWidth;
113 LOG("=(R%i,C%i)", *wrpos / Term->TextWidth, *wrpos % Term->TextWidth);
115 void Display_SaveCursor(tTerminal *Term)
117 Term->SavedWritePos = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltWritePos : Term->WritePos;
118 LOG("Saved = %i", Term->SavedWritePos);
120 void Display_RestoreCursor(tTerminal *Term)
122 int max = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight * Term->TextWidth;
123 int *wrpos = ((Term->Flags & VT_FLAG_ALTBUF) ? &Term->AltWritePos : &Term->WritePos);
124 if( Term->SavedWritePos >= max )
127 *wrpos = Term->SavedWritePos;
128 LOG("Restored %i", *wrpos);
130 // 0: All, 1: Forward, -1: Reverse
131 void Display_ClearLine(tTerminal *Term, int Dir)
133 const int wrpos = (Term->Flags & VT_FLAG_ALTBUF ? Term->AltWritePos : Term->WritePos);
134 const int row = wrpos / Term->TextWidth;
135 const int col = wrpos % Term->TextWidth;
137 LOG("(Dir=%i)", Dir);
141 VT_int_ClearLine(Term, row);
142 VT_int_UpdateScreen(Term, 0);
145 else if( Dir == 1 ) {
146 VT_int_ClearInLine(Term, row, col, Term->TextWidth);
147 VT_int_UpdateScreen(Term, 0);
150 else if( Dir == -1 ) {
151 VT_int_ClearInLine(Term, row, 0, col);
152 VT_int_UpdateScreen(Term, 0);
156 ASSERTC(Dir, >=, -1);
160 void Display_ClearLines(tTerminal *Term, int Dir)
162 LOG("(Dir=%i)", Dir);
163 int *wrpos = (Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos);
164 int height = Term->TextHeight * (Term->Flags & VT_FLAG_ALTBUF ? 1 : giVT_Scrollback + 1);
169 if( !(Term->Flags & VT_FLAG_ALTBUF) ) {
174 VT_int_ClearLine(Term, count);
176 VT_int_UpdateScreen(Term, 1);
179 else if( Dir == 1 ) {
180 for( int row = *wrpos / Term->TextWidth; row < height; row ++ )
181 VT_int_ClearLine(Term, row);
182 VT_int_UpdateScreen(Term, 1);
185 else if( Dir == -1 ) {
186 for( int row = 0; row < *wrpos / Term->TextWidth; row ++ )
187 VT_int_ClearLine(Term, row);
188 VT_int_UpdateScreen(Term, 1);
192 ASSERTC(Dir, >=, -1);
196 void Display_ResetAttributes(tTerminal *Term)
199 Term->CurColour = DEFAULT_COLOUR;
201 void Display_SetForeground(tTerminal *Term, uint32_t RGB)
204 Term->CurColour &= 0x8000FFFF;
205 Term->CurColour |= (Uint32)VT_Colour24to12(RGB) << 16;
208 void Display_SetBackground(tTerminal *Term, uint32_t RGB)
211 Term->CurColour &= 0xFFFF8000;
212 Term->CurColour |= (Uint32)VT_Colour24to12(RGB) << 0;
214 void Display_Flush(tTerminal *Term)
217 VT_int_UpdateScreen(Term, 0);
219 void Display_ShowAltBuffer(tTerminal *Term, bool AltBufEnabled)
221 LOG("(%B)", AltBufEnabled);
222 VT_int_ToggleAltBuffer(Term, AltBufEnabled);
224 void Display_SetTitle(tTerminal *Term, const char *Title)