From 05c66cb37d9ff278a3e0c45682c4b5e7945deb42 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Fri, 23 Feb 2018 14:16:52 -0600
Subject: Split mode bits between Term and TermWindow

Moves the mode bits used by x.c from Term to TermWindow, absorbing
UI/input-related mode bits (visible/focused/numlock) along the way.

This is gradually reducing external references to Term.  Since
TermWindow is already internal to x.c, we add xsetmode() to allow st to
modify window bits in accordance with escape sequences.

IS_SET() is redefined accordingly (term.mode in st.c, win.mode in x.c).

Signed-off-by: Devin J. Pohly <djpohly@gmail.com>
---
 st.c | 64 ++++++++++++++++++++++++++++++++--------------------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

(limited to 'st.c')

diff --git a/st.c b/st.c
index 3ebf8c6..01791a5 100644
--- a/st.c
+++ b/st.c
@@ -42,6 +42,7 @@
 #define STR_ARG_SIZ   ESC_ARG_SIZ
 
 /* macros */
+#define IS_SET(flag)		((term.mode & (flag)) != 0)
 #define NUMMAXLEN(x)		((int)(sizeof(x) * 2.56 + 0.5) + 1)
 #define ISCONTROLC0(c)		(BETWEEN(c, 0, 0x1f) || (c) == '\177')
 #define ISCONTROLC1(c)		(BETWEEN(c, 0x80, 0x9f))
@@ -51,6 +52,17 @@
 /* constants */
 #define ISO14755CMD		"dmenu -w \"$WINDOWID\" -p codepoint: </dev/null"
 
+enum term_mode {
+	MODE_WRAP        = 1 << 0,
+	MODE_INSERT      = 1 << 1,
+	MODE_ALTSCREEN   = 1 << 2,
+	MODE_CRLF        = 1 << 3,
+	MODE_ECHO        = 1 << 4,
+	MODE_PRINT       = 1 << 5,
+	MODE_UTF8        = 1 << 6,
+	MODE_SIXEL       = 1 << 7,
+};
+
 enum cursor_movement {
 	CURSOR_SAVE,
 	CURSOR_LOAD
@@ -977,8 +989,6 @@ tnew(int col, int row)
 {
 	term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
 	tresize(col, row);
-	term.numlock = 1;
-
 	treset();
 }
 
@@ -1414,20 +1424,16 @@ tsetscroll(int t, int b)
 void
 tsetmode(int priv, int set, int *args, int narg)
 {
-	int *lim, mode;
-	int alt;
+	int alt, *lim;
 
 	for (lim = args + narg; args < lim; ++args) {
 		if (priv) {
 			switch (*args) {
 			case 1: /* DECCKM -- Cursor key */
-				MODBIT(term.mode, set, MODE_APPCURSOR);
+				xsetmode(set, MODE_APPCURSOR);
 				break;
 			case 5: /* DECSCNM -- Reverse video */
-				mode = term.mode;
-				MODBIT(term.mode, set, MODE_REVERSE);
-				if (mode != term.mode)
-					redraw();
+				xsetmode(set, MODE_REVERSE);
 				break;
 			case 6: /* DECOM -- Origin */
 				MODBIT(term.c.state, set, CURSOR_ORIGIN);
@@ -1447,36 +1453,36 @@ tsetmode(int priv, int set, int *args, int narg)
 			case 12: /* att610 -- Start blinking cursor (IGNORED) */
 				break;
 			case 25: /* DECTCEM -- Text Cursor Enable Mode */
-				MODBIT(term.mode, !set, MODE_HIDE);
+				xsetmode(!set, MODE_HIDE);
 				break;
 			case 9:    /* X10 mouse compatibility mode */
 				xsetpointermotion(0);
-				MODBIT(term.mode, 0, MODE_MOUSE);
-				MODBIT(term.mode, set, MODE_MOUSEX10);
+				xsetmode(0, MODE_MOUSE);
+				xsetmode(set, MODE_MOUSEX10);
 				break;
 			case 1000: /* 1000: report button press */
 				xsetpointermotion(0);
-				MODBIT(term.mode, 0, MODE_MOUSE);
-				MODBIT(term.mode, set, MODE_MOUSEBTN);
+				xsetmode(0, MODE_MOUSE);
+				xsetmode(set, MODE_MOUSEBTN);
 				break;
 			case 1002: /* 1002: report motion on button press */
 				xsetpointermotion(0);
-				MODBIT(term.mode, 0, MODE_MOUSE);
-				MODBIT(term.mode, set, MODE_MOUSEMOTION);
+				xsetmode(0, MODE_MOUSE);
+				xsetmode(set, MODE_MOUSEMOTION);
 				break;
 			case 1003: /* 1003: enable all mouse motions */
 				xsetpointermotion(set);
-				MODBIT(term.mode, 0, MODE_MOUSE);
-				MODBIT(term.mode, set, MODE_MOUSEMANY);
+				xsetmode(0, MODE_MOUSE);
+				xsetmode(set, MODE_MOUSEMANY);
 				break;
 			case 1004: /* 1004: send focus events to tty */
-				MODBIT(term.mode, set, MODE_FOCUS);
+				xsetmode(set, MODE_FOCUS);
 				break;
 			case 1006: /* 1006: extended reporting mode */
-				MODBIT(term.mode, set, MODE_MOUSESGR);
+				xsetmode(set, MODE_MOUSESGR);
 				break;
 			case 1034:
-				MODBIT(term.mode, set, MODE_8BIT);
+				xsetmode(set, MODE_8BIT);
 				break;
 			case 1049: /* swap screen & set/restore cursor as xterm */
 				if (!allowaltscreen)
@@ -1501,7 +1507,7 @@ tsetmode(int priv, int set, int *args, int narg)
 				tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
 				break;
 			case 2004: /* 2004: bracketed paste mode */
-				MODBIT(term.mode, set, MODE_BRCKTPASTE);
+				xsetmode(set, MODE_BRCKTPASTE);
 				break;
 			/* Not implemented mouse modes. See comments there. */
 			case 1001: /* mouse highlight mode; can hang the
@@ -1522,8 +1528,8 @@ tsetmode(int priv, int set, int *args, int narg)
 			switch (*args) {
 			case 0:  /* Error (IGNORED) */
 				break;
-			case 2:  /* KAM -- keyboard action */
-				MODBIT(term.mode, set, MODE_KBDLOCK);
+			case 2:
+				xsetmode(set, MODE_KBDLOCK);
 				break;
 			case 4:  /* IRM -- Insertion-replacement */
 				MODBIT(term.mode, set, MODE_INSERT);
@@ -2230,10 +2236,10 @@ eschandle(uchar ascii)
 		xloadcols();
 		break;
 	case '=': /* DECPAM -- Application keypad */
-		term.mode |= MODE_APPKEYPAD;
+		xsetmode(1, MODE_APPKEYPAD);
 		break;
 	case '>': /* DECPNM -- Normal keypad */
-		term.mode &= ~MODE_APPKEYPAD;
+		xsetmode(0, MODE_APPKEYPAD);
 		break;
 	case '7': /* DECSC -- Save Cursor */
 		tcursor(CURSOR_SAVE);
@@ -2526,9 +2532,3 @@ redraw(void)
 	tfulldirt();
 	draw();
 }
-
-void
-numlock(const Arg *dummy)
-{
-	term.numlock ^= 1;
-}
-- 
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