applied parts of Connor Lane Smith's cleanup patch.

[st.git] / st.c

diff --git a/st.c b/st.c
index 56c3c6b..01ffa21 100644 (file)
--- a/st.c
+++ b/st.c
@@ -34,8 +34,8 @@
 #endif
 
 #define USAGE \
-       "st-" VERSION ", (c) 2010 st engineers\n" \
-       "usage: st [-t title] [-c class] [-v] [-e cmd]\n"
+       "st-" VERSION ", (c) 2010-2011 st engineers\n" \
+       "usage: st [-t title] [-c class] [-v] [-e command...]\n"
 
 /* Arbitrary sizes */
 #define ESC_TITLE_SIZ 256
@@ -53,7 +53,9 @@
 #define LIMIT(x, a, b)    (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
 #define IS_SET(flag) (term.mode & (flag))
-#define TIMEDIFFERENCE(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
+#define X2COL(x) (((x) - BORDER)/xw.cw)
+#define Y2ROW(y) (((y) - BORDER)/xw.ch)
 
 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
 enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
@@ -62,7 +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_CRLF=16, MODE_MOUSE=32 };
 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 };
 
@@ -401,19 +403,47 @@ getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
        if(b)
                *b = e->xbutton.button;
 
-       *x = (e->xbutton.x - BORDER)/xw.cw;
-       *y = (e->xbutton.y - BORDER)/xw.ch;
+       *x = X2COL(e->xbutton.x);
+       *y = Y2ROW(e->xbutton.y);
        sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
        sel.b.y = MIN(sel.by, sel.ey);
        sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
        sel.e.y = MAX(sel.by, sel.ey);
 }
 
+void
+mousereport(XEvent *e) {
+       int x = X2COL(e->xbutton.x);
+       int y = Y2ROW(e->xbutton.y);
+       int button = e->xbutton.button;
+       int state = e->xbutton.state;
+       char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
+       
+       if(!IS_SET(MODE_MOUSE))
+               return;
+       
+       /* from urxvt */
+       if(e->xbutton.type == ButtonRelease || button == AnyButton)
+               button = 3;
+       else {
+               button -= Button1;
+               if(button >= 3)
+                       button += 64 - 3;
+       }
+       
+       buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
+               + (state & Mod4Mask    ? 8  : 0)
+               + (state & ControlMask ? 16 : 0);
+       
+       ttywrite(buf, sizeof(buf));
+}
+
 void
 bpress(XEvent *e) {
+       mousereport(e);
        sel.mode = 1;
-       sel.ex = sel.bx = (e->xbutton.x - BORDER)/xw.cw;
-       sel.ey = sel.by = (e->xbutton.y - BORDER)/xw.ch;
+       sel.ex = sel.bx = X2COL(e->xbutton.x);
+       sel.ey = sel.by = Y2ROW(e->xbutton.y);
 }
 
 void
@@ -526,6 +556,7 @@ brelease(XEvent *e) {
 
        sel.mode = 0;
        getbuttoninfo(e, &b, &sel.ex, &sel.ey);
+       mousereport(e);
        if(sel.bx == sel.ex && sel.by == sel.ey) {
                sel.bx = -1;
                if(b == 2)
@@ -534,13 +565,13 @@ brelease(XEvent *e) {
                        struct timeval now;
                        gettimeofday(&now, NULL);
 
-                       if(TIMEDIFFERENCE(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
+                       if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
                                /* triple click on the line */
                                sel.b.x = sel.bx = 0;
                                sel.e.x = sel.ex = term.col;
                                sel.b.y = sel.e.y = sel.ey;
                                selcopy();
-                       } else if(TIMEDIFFERENCE(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
+                       } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
                                /* double click to select word */
                                sel.bx = sel.ex;
                                while(term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
@@ -1085,6 +1116,9 @@ csihandle(void) {
                        case 25:
                                term.c.state |= CURSOR_HIDE;
                                break;
+                       case 1000: /* disable X11 xterm mouse reporting */
+                               term.mode &= ~MODE_MOUSE;
+                               break;
                        case 1049: /* = 1047 and 1048 */
                        case 1047:
                                if(IS_SET(MODE_ALTSCREEN)) {
@@ -1148,6 +1182,9 @@ csihandle(void) {
                        case 25:
                                term.c.state &= ~CURSOR_HIDE;
                                break;
+                       case 1000: /* enable X11 xterm mouse reporting */
+                               term.mode |= MODE_MOUSE;
+                               break;
                        case 1049: /* = 1047 and 1048 */
                        case 1047:
                                if(IS_SET(MODE_ALTSCREEN))
@@ -1870,17 +1907,17 @@ main(int argc, char *argv[]) {
                case 'c':
                        if(++i < argc) opt_class = argv[i];
                        break;
-               case 'e':
+               case 'e': 
+                       /* eat every remaining arguments */
                        if(++i < argc) opt_cmd = &argv[i];
-                       break;
+                       goto run;
                case 'v':
                default:
                        die(USAGE);
                }
-               /* -e eats every remaining arguments */
-               if(opt_cmd)
-                       break;
        }
+
+ run:
        setlocale(LC_CTYPE, "");
        tnew(80, 24);
        ttynew();