X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Fdrv%2Fvterm_vt100.c;h=4428b64ee4fc215d6299c26eaa5b60b090316e5f;hb=e2744a459d1c63435d7348d0bfd0e4b92b0ec9f9;hp=fb5e9734e1c02649517822051e2b636431943fbe;hpb=0247bf719b9a610776747221b8ed4c1343f5c93a;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/drv/vterm_vt100.c b/KernelLand/Kernel/drv/vterm_vt100.c
index fb5e9734..4428b64e 100644
--- a/KernelLand/Kernel/drv/vterm_vt100.c
+++ b/KernelLand/Kernel/drv/vterm_vt100.c
@@ -12,12 +12,17 @@
 #include "../../../Usermode/Applications/gui_terminal_src/vt100.c"
 
 void *Display_GetTermState(tTerminal *Term) {
-	return Term->VT100Info;;
+	return Term->VT100Info;
 }
 void Display_SetTermState(tTerminal *Term, void *State) {
 	Term->VT100Info = State;
 }
 
+void Display_SendInput(tTerminal *Term, const char *String)
+{
+	PTY_SendInput(Term->PTY, String, strlen(String));
+}
+
 void Display_AddText(tTerminal *Term, size_t Length, const char *UTF8Text)
 {
 	LOG("'%*C'", Length, UTF8Text);
@@ -42,51 +47,58 @@ void Display_ScrollDown(tTerminal *Term, int CountDown)
 		VT_int_ScrollText(Term, CountDown);
 	else
 	{
-		if(Term->ViewPos/Term->TextWidth + CountDown < 0)
+		if(Term->ViewTopRow + CountDown < 0)
 			return ;
-		if(Term->ViewPos/Term->TextWidth + CountDown  > Term->TextHeight * (giVT_Scrollback + 1))
+		if(Term->ViewTopRow + CountDown  > Term->TextHeight * (giVT_Scrollback + 1))
 			return ;
 		
-		Term->ViewPos += Term->TextWidth * CountDown;
+		Term->ViewTopRow += CountDown;
 	}
 }
 void Display_SetCursor(tTerminal *Term, int Row, int Col)
 {
 	LOG("(R%i,C%i)", Row, Col);
 	VT_int_UpdateScreen(Term, 0);
-	 int	maxrows = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight;
+	 int	maxrows = VT_int_GetBufferRows(Term);
 	ASSERTCR( Row, >=, 0, );
 	ASSERTCR( Row, <, maxrows, );
 	ASSERTCR( Col, >=, 0, );
 	ASSERTCR( Col, <, Term->TextWidth, );
-	*(Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos) = Row*Term->TextWidth + Col;
+	VT_int_GetWritePosPtr(Term)->Row = Row;
+	VT_int_GetWritePosPtr(Term)->Col = Col;
 }
 void Display_MoveCursor(tTerminal *Term, int RelRow, int RelCol)
 {
 	LOG("(R+%i,C+%i)", RelRow, RelCol);
-	int	*wrpos = (Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos);
+	tVT_Pos	*wrpos = VT_int_GetWritePosPtr(Term);
+
+	// TODO: Support scrolling if cursor goes offscreen
+	// if( bScrollIfNeeded )
+	//	Display_ScrollDown(extra);
+	// else
+	//	clip
 
 	if( RelCol != 0 )
 	{
 		// 
 		if( RelCol < 0 )
 		{
-			 int	avail = *wrpos % Term->TextWidth;
-			if( RelCol < -avail )
-				RelCol = -avail;
+			 int	max = wrpos->Col;
+			if( RelCol < -max )
+				RelCol = -max;
 		}
 		else
 		{
-			size_t	avail = Term->TextWidth - (*wrpos % Term->TextWidth);
-			if(RelCol > avail)
-				RelCol = avail;
+			size_t	max = Term->TextWidth - wrpos->Col - 1;
+			if(RelCol > max)
+				RelCol = max;
 		}
-		*wrpos += RelCol;
+		wrpos->Col += RelCol;
 	}
 	if( RelRow != 0 )
 	{
-		 int	currow = *wrpos / Term->TextWidth;
-		 int	maxrows = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight;
+		 int	currow = wrpos->Row;
+		 int	maxrows = VT_int_GetBufferRows(Term);
 		if( RelRow < 0 )
 		{
 			if( RelRow < -currow )
@@ -97,47 +109,46 @@ void Display_MoveCursor(tTerminal *Term, int RelRow, int RelCol)
 			if( currow + RelRow > maxrows-1 )
 				RelRow = maxrows-1 - currow;
 		}
-		*wrpos += RelRow*Term->TextWidth;
+		wrpos->Row += RelRow;
 	}
-	LOG("=(R%i,C%i)", *wrpos / Term->TextWidth, *wrpos % Term->TextWidth);
+	LOG("=(R%i,C%i)", wrpos->Row, wrpos->Col);
 }
 void Display_SaveCursor(tTerminal *Term)
 {
-	Term->SavedWritePos = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltWritePos : Term->WritePos;
+	Term->SavedWritePos = *VT_int_GetWritePosPtr(Term);
 	LOG("Saved = %i", Term->SavedWritePos);
 }
 void Display_RestoreCursor(tTerminal *Term)
 {
-	 int	max = ((Term->Flags & VT_FLAG_ALTBUF) ? 1 : (giVT_Scrollback+1))*Term->TextHeight * Term->TextWidth;
-	 int	*wrpos = ((Term->Flags & VT_FLAG_ALTBUF) ? &Term->AltWritePos : &Term->WritePos);
-	if( Term->SavedWritePos >= max )
-		*wrpos = max-1;
-	else
-		*wrpos = Term->SavedWritePos;
-	LOG("Restored %i", *wrpos);
+	size_t	maxrow = VT_int_GetBufferRows(Term);
+	tVT_Pos	*wrpos = VT_int_GetWritePosPtr(Term);
+	*wrpos = Term->SavedWritePos;
+	if(wrpos->Row >= maxrow)
+		wrpos->Row = maxrow-1;
+	if(wrpos->Col >= Term->TextWidth )
+		wrpos->Col = Term->TextWidth-1;
+	LOG("Restored (R%i,C%i)", wrpos->Row, wrpos->Col);
 }
 // 0: All, 1: Forward, -1: Reverse
 void Display_ClearLine(tTerminal *Term, int Dir)
 {
-	const int	wrpos = (Term->Flags & VT_FLAG_ALTBUF ? Term->AltWritePos : Term->WritePos);
-	const int	row = wrpos / Term->TextWidth;
-	const int	col = wrpos % Term->TextWidth;
+	const tVT_Pos	*wrpos = VT_int_GetWritePosPtr(Term);
 
 	LOG("(Dir=%i)", Dir);
 
 	// Erase all
 	if( Dir == 0 ) {
-		VT_int_ClearLine(Term, row);
+		VT_int_ClearLine(Term, wrpos->Row);
 		VT_int_UpdateScreen(Term, 0);
 	}
 	// Erase to right
 	else if( Dir == 1 ) {
-		VT_int_ClearInLine(Term, row, col, Term->TextWidth);
+		VT_int_ClearInLine(Term, wrpos->Row, wrpos->Col, Term->TextWidth);
 		VT_int_UpdateScreen(Term, 0);
 	}
 	// Erase to left
 	else if( Dir == -1 ) {
-		VT_int_ClearInLine(Term, row, 0, col);
+		VT_int_ClearInLine(Term, wrpos->Row, 0, wrpos->Col);
 		VT_int_UpdateScreen(Term, 0);
 	}
 	else {
@@ -149,31 +160,33 @@ void Display_ClearLine(tTerminal *Term, int Dir)
 void Display_ClearLines(tTerminal *Term, int Dir)
 {
 	LOG("(Dir=%i)", Dir);	
-	 int	*wrpos = (Term->Flags & VT_FLAG_ALTBUF ? &Term->AltWritePos : &Term->WritePos);
+	tVT_Pos	*wrpos = VT_int_GetWritePosPtr(Term);
+	size_t	height = VT_int_GetBufferRows(Term);
 	
 	// All
 	if( Dir == 0 ) {
-		int count;
 		
-		if( Term->Flags & VT_FLAG_ALTBUF ) {
-			count = Term->TextHeight;
-		}
-		else {
-			count = Term->TextHeight * (giVT_Scrollback + 1);
-			Term->ViewPos = 0;
+		if( !(Term->Flags & VT_FLAG_ALTBUF) ) {
+			Term->ViewTopRow = 0;
 		}
+		int count = height;
 		while( count -- )
 			VT_int_ClearLine(Term, count);
-		*wrpos = 0;
+		wrpos->Col = 0;
+		wrpos->Row = 0;
 		VT_int_UpdateScreen(Term, 1);
 	}
 	// Downwards
 	else if( Dir == 1 ) {
-		Log_Warning("VTerm", "TODO: ClearLines Down");
+		for( int row = wrpos->Row; row < height; row ++ )
+			VT_int_ClearLine(Term, row);
+		VT_int_UpdateScreen(Term, 1);
 	}
 	// Upwards
 	else if( Dir == -1 ) {
-		Log_Warning("VTerm", "TODO: ClearLines Up");
+		for( int row = 0; row < wrpos->Row; row ++ )
+			VT_int_ClearLine(Term, row);
+		VT_int_UpdateScreen(Term, 1);
 	}
 	else {
 		// ERROR!