reverse video mode. (thx Bert Münnich)

2 files changed, 24 insertions, 8 deletions

diff --git a/st.c b/st.c
index 1d01925..a4aca51 100644
--- a/st.c
+++ b/st.c
@@ -64,7 +64,7 @@ enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
 enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
 enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
-       MODE_CRLF=16, MODE_MOUSE=32 };
+       MODE_CRLF=16, MODE_MOUSE=32, MODE_REVERSE=64 };
 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
 
@@ -1103,7 +1103,11 @@ csihandle(void) {
                         case 1:
                                 term.mode &= ~MODE_APPKEYPAD;
                                 break;
-                        case 5: /* TODO: DECSCNM -- Remove reverse video */
+                        case 5: /* DECSCNM -- Remove reverse video */
+                                if(IS_SET(MODE_REVERSE)) {
+                                        term.mode &= ~MODE_REVERSE;
+                                        draw();
+                                }
                                 break;
                         case 7:
                                 term.mode &= ~MODE_WRAP;
@@ -1167,7 +1171,10 @@ csihandle(void) {
                                 term.mode |= MODE_APPKEYPAD;
                                 break;
                         case 5: /* DECSCNM -- Reverve video */
-                                /* TODO: set REVERSE on the whole screen (f) */
+                                if(!IS_SET(MODE_REVERSE)) {
+                                        term.mode |= MODE_REVERSE;
+                                        draw();
+                                }
                                 break;
                         case 7:
                                 term.mode |= MODE_WRAP;
@@ -1508,7 +1515,7 @@ xloadcols(void) {
 
 void
 xclear(int x1, int y1, int x2, int y2) {
-        XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
+        XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
         XFillRectangle(xw.dpy, xw.buf, dc.gc,
                        x1 * xw.cw, y1 * xw.ch,
                        (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
@@ -1640,14 +1647,20 @@ xinit(void) {
 
 void
 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
-        unsigned long xfg, xbg;
+        unsigned long xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
         int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
         int i;
+        
+        /* only switch default fg/bg if term is in RV mode */
+        if(IS_SET(MODE_REVERSE)) {
+                if(base.fg == DefaultFG)
+                        xfg = dc.col[DefaultBG];
+                if(base.bg == DefaultBG)
+                        xbg = dc.col[DefaultFG];
+        }
 
         if(base.mode & ATTR_REVERSE)
-                xfg = dc.col[base.bg], xbg = dc.col[base.fg];
-        else
-                xfg = dc.col[base.fg], xbg = dc.col[base.bg];
+                temp = xfg, xfg = xbg, xbg = temp;
 
         XSetBackground(xw.dpy, dc.gc, xbg);
         XSetForeground(xw.dpy, dc.gc, xfg);
@@ -1692,6 +1705,8 @@ xdrawcursor(void) {
         /* draw the new one */
         if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
                 sl = utf8size(g.c);
+                if(IS_SET(MODE_REVERSE))
+                        g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
                 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
                 oldx = term.c.x, oldy = term.c.y;
         }
diff --git a/st.info b/st.info
index 1cc6349..489908f 100644
--- a/st.info
+++ b/st.info
@@ -33,6 +33,7 @@ st| simpleterm,
         ed=\E[J,
         el=\E[K,
         el1=\E[1K,
+        flash=\E[?5h\E[?5l,
         fsl=^G,
         home=\E[H,
         hpa=\E[%i%p1%dG,