selection clicks, shift+arrow keys, fast(er) redraw, key mask in config.h (thx Magnus Leuthner)

2011-04-22 00:18:53 +02:00
parent d3c5aba2d9
commit 9d5ea14b9d
3 changed files with 126 additions and 61 deletions
--- a/config.def.h
+++ b/config.def.h
@@ -31,27 +31,28 @@ static const char *colorname[] = {
 #define DefaultBG 0
 #define DefaultCS 1

-/* Special keys */
+/* Special keys (change & recompile st.info accordingly) */
+/*    key,        mask,  output */
 static Key key[] = {
-	{ XK_BackSpace, "\177" },
-	{ XK_Insert,    "\033[2~" },
-	{ XK_Delete,    "\033[3~" },
-	{ XK_Home,      "\033[1~" },
-	{ XK_End,       "\033[4~" },
-	{ XK_Prior,     "\033[5~" },
-	{ XK_Next,      "\033[6~" },
-	{ XK_F1,        "\033OP"   },
-	{ XK_F2,        "\033OQ"   },
-	{ XK_F3,        "\033OR"   },
-	{ XK_F4,        "\033OS"   },
-	{ XK_F5,        "\033[15~" },
-	{ XK_F6,        "\033[17~" },
-	{ XK_F7,        "\033[18~" },
-	{ XK_F8,        "\033[19~" },
-	{ XK_F9,        "\033[20~" },
-	{ XK_F10,       "\033[21~" },
-	{ XK_F11,       "\033[23~" },
-	{ XK_F12,       "\033[24~" },
+	{ XK_BackSpace, 0, "\177" },
+	{ XK_Insert,    0, "\033[2~" },
+	{ XK_Delete,    0, "\033[3~" },
+	{ XK_Home,      0, "\033[1~" },
+	{ XK_End,       0, "\033[4~" },
+	{ XK_Prior,     0, "\033[5~" },
+	{ XK_Next,      0, "\033[6~" },
+	{ XK_F1,        0, "\033OP"   },
+	{ XK_F2,        0, "\033OQ"   },
+	{ XK_F3,        0, "\033OR"   },
+	{ XK_F4,        0, "\033OS"   },
+	{ XK_F5,        0, "\033[15~" },
+	{ XK_F6,        0, "\033[17~" },
+	{ XK_F7,        0, "\033[18~" },
+	{ XK_F8,        0, "\033[19~" },
+	{ XK_F9,        0, "\033[20~" },
+	{ XK_F10,       0, "\033[21~" },
+	{ XK_F11,       0, "\033[23~" },
+	{ XK_F12,       0, "\033[24~" },
 };

 /* Line drawing characters (sometime specific to each font...) */
@@ -61,3 +62,7 @@ static char gfx[] = {
 	['i'] = '#',
 	[255] = 0,
 };
+
+/* double-click timeout (in milliseconds) between clicks for selection */
+#define DOUBLECLICK_TIMEOUT 300
+#define TRIPLECLICK_TIMEOUT (2*DOUBLECLICK_TIMEOUT)
--- a/st.c
+++ b/st.c
@@ -22,6 +22,9 @@
 #include <X11/cursorfont.h>
 #include <X11/keysym.h>

+#include <sys/time.h>
+#include <time.h>
+
 #if   defined(__linux)
 #include <pty.h>
 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
@@ -50,6 +53,7 @@
 #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)

 /* 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 };
@@ -60,7 +64,6 @@ enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
       MODE_CRLF=16 };
 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
-enum { SCREEN_UPDATE, SCREEN_REDRAW };
 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };

 #undef B0
@@ -129,6 +132,7 @@ typedef struct {

 typedef struct {
 	KeySym k;
+	unsigned int mask;
 	char s[ESC_BUF_SIZ];
 } Key;

@@ -153,12 +157,15 @@ typedef struct {
 	struct {int x, y;} b, e;
 	char *clip;
 	Atom xtarget;
+	struct timeval tclick1;
+	struct timeval tclick2;
 } Selection;

 #include "config.h"

 static void die(const char *errstr, ...);
-static void draw(int);
+static void draw();
+static void drawregion(int, int, int, int);
 static void execsh(void);
 static void sigchld(int);
 static void run(void);
@@ -206,7 +213,7 @@ static void xresize(int, int);
 static void expose(XEvent *);
 static void visibility(XEvent *);
 static void unmap(XEvent *);
-static char* kmap(KeySym);
+static char* kmap(KeySym, unsigned int state);
 static void kpress(XEvent *);
 static void resize(XEvent *);
 static void focus(XEvent *);
@@ -219,7 +226,7 @@ static void selrequest(XEvent *);
 static void selinit(void);
 static inline int selected(int, int);
 static void selcopy(void);
-static void selpaste(void);
+static void selpaste();

 static int utf8decode(char *, long *);
 static int utf8encode(long *, char *);
@@ -368,6 +375,8 @@ utf8size(char *s) {

 void
 selinit(void) {
+	sel.tclick1.tv_sec = 0;
+	sel.tclick1.tv_usec = 0;
 	sel.mode = 0;
 	sel.bx = -1;
 	sel.clip = NULL;
@@ -511,30 +520,63 @@ xsetsel(char *str) {
 	XFlush(xw.dpy);
 }

-/* TODO: doubleclick to select word */
 void
 brelease(XEvent *e) {
 	int b;
 	sel.mode = 0;
 	getbuttoninfo(e, &b, &sel.ex, &sel.ey);
-	if(sel.bx==sel.ex && sel.by==sel.ey) {
+	
+	if(sel.bx == sel.ex && sel.by == sel.ey) {
 		sel.bx = -1;
-		if(b==2)
+		if(b == 2)
 			selpaste();
-	} else {
-		if(b==1)
+
+		else if(b == 1) {
+			/* double click to select word */
+			struct timeval now;
+			gettimeofday(&now, NULL);
+
+			if(TIMEDIFFERENCE(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
+				sel.bx = sel.ex;
+				while(term.line[sel.ey][sel.bx-1].state & GLYPH_SET && 
+					  term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
+				sel.b.x = sel.bx;
+				while(term.line[sel.ey][sel.ex+1].state & GLYPH_SET && 
+					  term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
+				sel.e.x = sel.ex;
+				sel.b.y = sel.e.y = sel.ey;
 				selcopy();
 			}
-	draw(1);
+
+			/* triple click on the line */
+			if(TIMEDIFFERENCE(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
+				sel.b.x = sel.bx = 0;
+				sel.e.x = sel.ex = term.col;
+				sel.b.y = sel.e.y = sel.ey;
+				selcopy();
+			}
+		}
+	} else {
+		if(b == 1) 
+			selcopy();
+	}
+	memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
+	gettimeofday(&sel.tclick1, NULL);
+	draw();
 }

 void
 bmotion(XEvent *e) {
-	if (sel.mode) {
+	if(sel.mode) {
+		int oldey = sel.ey, 
+			oldex = sel.ex;
 		getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
-		/* XXX: draw() can't keep up, disabled for now.
-		   selection is visible on button release.
-		   draw(1); */
+
+		if(oldey != sel.ey || oldex != sel.ex) {
+			int starty = MIN(oldey, sel.ey);
+			int endy = MAX(oldey, sel.ey);
+			drawregion(0, (starty > 0 ? starty : 0), term.col, (sel.ey < term.row ? endy+1 : term.row));
+		}
 	}
 }

@@ -641,6 +683,10 @@ ttyread(void) {

 void
 ttywrite(const char *s, size_t n) {
+	{size_t nn;
+		for(nn = 0; nn < n; nn++)
+			dump(s[nn]);
+	}
 	if(write(cmdfd, s, n) == -1)
 		die("write error on tty: %s\n", SERRNO);
 }
@@ -1641,7 +1687,12 @@ xdrawc(int x, int y, Glyph g) {
 }

 void 
-draw(int dummy) {
+drawregion(int x0, int x1, int y0, int y1) {
+	draw();
+}
+
+void
+draw() {
 	int x, y;

 	xclear(0, 0, term.col-1, term.row-1);
@@ -1658,7 +1709,12 @@ draw(int dummy) {
 #else
 /* optimized drawing routine */
 void 
-draw(int redraw_all) {
+draw() {
+	drawregion(0, 0, term.col, term.row);
+}
+
+void
+drawregion(int x1, int y1, int x2, int y2) {
 	int ic, ib, x, y, ox, sl;
 	Glyph base, new;
 	char buf[DRAW_BUF_SIZ];
@@ -1666,13 +1722,13 @@ draw(int redraw_all) {
 	if(!(xw.state & WIN_VISIBLE))
 		return;

-	xclear(0, 0, term.col-1, term.row-1);
-	for(y = 0; y < term.row; y++) {
+	xclear(x1, y1, x2-1, y2-1);
+	for(y = y1; y < y2; y++) {
 		base = term.line[y][0];
 		ic = ib = ox = 0;
-		for(x = 0; x < term.col; x++) {
+		for(x = x1; x < x2; x++) {
 			new = term.line[y][x];
-			if(sel.bx!=-1 && *(new.c) && selected(x, y))
+			if(sel.bx != -1 && *(new.c) && selected(x, y))
 				new.mode ^= ATTR_REVERSE;
 			if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
 					ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
@@ -1705,7 +1761,7 @@ expose(XEvent *ev) {
 	if(xw.state & WIN_REDRAW) {
 		if(!e->count) {
 			xw.state &= ~WIN_REDRAW;
-			draw(SCREEN_REDRAW);
+			draw();
 		}
 	} else
 		XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
@@ -1742,14 +1798,14 @@ focus(XEvent *ev) {
 		xseturgency(0);
 	} else
 		xw.state &= ~WIN_FOCUSED;
-	draw(SCREEN_UPDATE);
+	draw();
 }

 char*
-kmap(KeySym k) {
+kmap(KeySym k, unsigned int state) {
 	int i;
 	for(i = 0; i < LEN(key); i++)
-		if(key[i].k == k)
+		if(key[i].k == k && (key[i].mask == 0 || key[i].mask & state))
 			return (char*)key[i].s;
 	return NULL;
 }
@@ -1770,7 +1826,7 @@ kpress(XEvent *ev) {
 	len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
 	
 	/* 1. custom keys from config.h */
-	if((customkey = kmap(ksym)))
+	if((customkey = kmap(ksym, e->state)))
 		ttywrite(customkey, strlen(customkey));
 	/* 2. hardcoded (overrides X lookup) */
 	else
@@ -1779,7 +1835,7 @@ kpress(XEvent *ev) {
 		case XK_Down:
 		case XK_Left:
 		case XK_Right:
-			sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', "DACB"[ksym - XK_Left]);
+			sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
 			ttywrite(buf, 3);
 			break;
 		case XK_Insert:
@@ -1817,7 +1873,7 @@ resize(XEvent *e) {
 	if(col == term.col && row == term.row)
 		return;
 	if(tresize(col, row))
-		draw(SCREEN_REDRAW);
+		draw();
 	ttyresize(col, row);
 	xresize(col, row);
 }
@@ -1839,7 +1895,7 @@ run(void) {
 		}
 		if(FD_ISSET(cmdfd, &rfd)) {
 			ttyread();
-			draw(SCREEN_UPDATE); 
+			draw(); 
 		}
 		while(XPending(xw.dpy)) {
 			XNextEvent(xw.dpy, &ev);
--- a/st.info
+++ b/st.info
@@ -49,6 +49,10 @@ st| simpleterm,
 	kcud1=\E[B,
 	kcuf1=\E[C,
 	kcuu1=\E[A,
+	kLFT=\E[d,
+	kRIT=\E[c,
+	kind=\E[a,
+	kri=\E[b,
 	kdch1=\E[3~,
 	kich1=\E[2~,
 	kend=\E[4~,