X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/326586ba434fb873ebdb81f385ebe838419a98a7..160bda1b60148ce8f7d3b001ada2b12f1da9e152:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index 73121ef..6a90176 100644
--- a/st.c
+++ b/st.c
@@ -50,7 +50,7 @@ enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
CURSOR_SAVE, CURSOR_LOAD };
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 };
+enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8 };
enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
enum { SCREEN_UPDATE, SCREEN_REDRAW };
@@ -86,7 +86,8 @@ typedef struct {
typedef struct {
int row; /* nb row */
int col; /* nb col */
- Line* line; /* screen */
+ Line* line; /* screen */
+ Line* alt; /* alternate screen */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
@@ -156,6 +157,7 @@ static void tscrolldown(int);
static void tsetattr(int*, int);
static void tsetchar(char);
static void tsetscroll(int, int);
+static void tswapscreen(void);
static void ttynew(void);
static void ttyread(void);
@@ -175,6 +177,9 @@ static char* kmap(KeySym);
static void kpress(XEvent *);
static void resize(XEvent *);
static void focus(XEvent *);
+static void brelease(XEvent *e);
+static void bpress(XEvent *e);
+static void bmotion(XEvent *e);
static void (*handler[LASTEvent])(XEvent *) = {
@@ -183,6 +188,9 @@ static void (*handler[LASTEvent])(XEvent *) = {
[ConfigureNotify] = resize,
[FocusIn] = focus,
[FocusOut] = focus,
+ [MotionNotify] = bmotion,
+ [ButtonPress] = bpress,
+ [ButtonRelease] = brelease,
};
/* Globals */
@@ -193,6 +201,103 @@ static CSIEscape escseq;
static int cmdfd;
static pid_t pid;
+/* selection */
+// TODO: use X11 clipboard
+static int selmode = 0;
+static int selbx = -1, selby;
+static int selex, seley;
+int sb[2], se[2];
+static const char *clipboard = NULL;
+
+static inline int selected(int x, int y) {
+ if ((seley==y && selby==y)) {
+ int bx = MIN(selbx, selex);
+ int ex = MAX(selbx, selex);
+ return (x>=bx && x<=ex);
+ }
+ return (((y>sb[1] && y<se[1]) || (y==se[1] && x<=se[0])) || \
+ (y==sb[1] && x>=sb[0] && (x<=se[0] || sb[1]!=se[1])));
+}
+
+static void getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
+ if(b) *b = e->xbutton.state,
+ *b=*b==4096?5:*b==2048?4:*b==1024?3:*b==512?2:*b==256?1:-1;
+ *x = e->xbutton.x/xw.cw;
+ *y = e->xbutton.y/xw.ch;
+ sb[0] = selby<seley?selbx:selex;
+ sb[1] = MIN(selby, seley);
+ se[0] = selby<seley?selex:selbx;
+ se[1] = MAX(selby, seley);
+}
+
+static void bpress(XEvent *e) {
+ selmode = 1;
+ selex = selbx = e->xbutton.x/xw.cw;
+ seley = selby = e->xbutton.y/xw.ch;
+}
+
+static char *getseltext() {
+ char *str, *ptr;
+ int ls, x, y, sz;
+ if(selbx==-1)
+ return NULL;
+ sz = ((xw.w/xw.ch) * (se[1]-sb[1]+2));
+ ptr = str = malloc (sz);
+ for(y = 0; y < term.row; y++) {
+ for(x = 0; x < term.col; x++) {
+ if(term.line[y][x].c && (ls=selected(x, y))) {
+ *ptr = term.line[y][x].c;
+ ptr++;
+ }
+ }
+ if (ls) {
+ *ptr = '\n';
+ ptr++;
+ }
+ }
+ *ptr = 0;
+ return str;
+}
+
+static void clipboard_copy(const char *str) {
+ free((void *)clipboard);
+ clipboard = str;
+}
+
+static void clipboard_paste() {
+ if(clipboard)
+ ttywrite(clipboard, strlen(clipboard));
+}
+
+// TODO: doubleclick to select word
+static void brelease(XEvent *e) {
+ int b;
+ selmode = 0;
+ getbuttoninfo(e, &b, &selex, &seley);
+ if(b==4)
+ tscrollup(1);
+ else
+ if(b==5)
+ tscrolldown(1);
+ else
+ if(selbx==selex && selby==seley) {
+ selbx = -1;
+ if(b==2)
+ clipboard_paste();
+ } else {
+ if(b==1)
+ clipboard_copy(getseltext());
+ }
+ draw(1);
+}
+
+static void bmotion(XEvent *e) {
+ if (selmode) {
+ getbuttoninfo(e, NULL, &selex, &seley);
+ draw(1);
+ }
+}
+
#ifdef DEBUG
void
tdump(void) {
@@ -226,7 +331,7 @@ die(const char *errstr, ...) {
void
execsh(void) {
char *args[3] = {getenv("SHELL"), "-i", NULL};
- DEFAULT(args[0], "/bin/sh"); /* if getenv() failed */
+ DEFAULT(args[0], SHELL); /* if getenv() failed */
putenv("TERM=" TNAME);
execvp(args[0], args);
}
@@ -337,12 +442,23 @@ tnew(int col, int row) {
/* set screen size */
term.row = row, term.col = col;
term.line = malloc(term.row * sizeof(Line));
- for(row = 0 ; row < term.row; row++)
+ term.alt = malloc(term.row * sizeof(Line));
+ for(row = 0 ; row < term.row; row++) {
term.line[row] = malloc(term.col * sizeof(Glyph));
+ term.alt [row] = malloc(term.col * sizeof(Glyph));
+ }
/* setup screen */
treset();
}
+void
+tswapscreen(void) {
+ Line* tmp = term.line;
+ term.line = term.alt;
+ term.alt = tmp;
+ term.mode ^= MODE_ALTSCREEN;
+}
+
void
tscrolldown (int n) {
int i;
@@ -712,10 +828,16 @@ csihandle(void) {
case 25:
term.c.state |= CURSOR_HIDE;
break;
- case 1048: /* XXX: no alt. screen to erase/save */
- case 1049:
+ case 1049: /* = 1047 and 1048 */
+ case 1047:
+ if(IS_SET(MODE_ALTSCREEN)) {
+ tclearregion(0, 0, term.col-1, term.row-1);
+ tswapscreen();
+ }
+ if(escseq.arg[0] == 1047)
+ break;
+ case 1048:
tcursor(CURSOR_LOAD);
- tclearregion(0, 0, term.col-1, term.row-1);
break;
default:
goto unknown;
@@ -761,10 +883,16 @@ csihandle(void) {
case 25:
term.c.state &= ~CURSOR_HIDE;
break;
- case 1048:
- case 1049: /* XXX: no alt. screen to erase/save */
+ case 1049: /* = 1047 and 1048 */
+ case 1047:
+ if(IS_SET(MODE_ALTSCREEN))
+ tclearregion(0, 0, term.col-1, term.row-1);
+ else
+ tswapscreen();
+ if(escseq.arg[0] == 1047)
+ break;
+ case 1048:
tcursor(CURSOR_SAVE);
- tclearregion(0, 0, term.col-1, term.row-1);
break;
default: goto unknown;
}
@@ -889,19 +1017,19 @@ tputc(char c) {
treset();
term.esc = 0;
break;
- case '=': /* DECPAM */
+ case '=': /* DECPAM -- Application keypad */
term.mode |= MODE_APPKEYPAD;
term.esc = 0;
break;
- case '>': /* DECPNM */
+ case '>': /* DECPNM -- Normal keypad */
term.mode &= ~MODE_APPKEYPAD;
term.esc = 0;
break;
- case '7':
+ case '7': /* DECSC -- Save Cursor*/
tcursor(CURSOR_SAVE);
term.esc = 0;
break;
- case '8':
+ case '8': /* DECRC -- Restore Cursor */
tcursor(CURSOR_LOAD);
term.esc = 0;
break;
@@ -961,21 +1089,28 @@ tresize(int col, int row) {
return;
/* free uneeded rows */
- for(i = row; i < term.row; i++)
+ for(i = row; i < term.row; i++) {
free(term.line[i]);
+ free(term.alt[i]);
+ }
/* resize to new height */
term.line = realloc(term.line, row * sizeof(Line));
+ term.alt = realloc(term.alt, row * sizeof(Line));
/* resize each row to new width, zero-pad if needed */
for(i = 0; i < minrow; i++) {
term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
+ term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
memset(term.line[i] + mincol, 0, (col - mincol) * sizeof(Glyph));
+ memset(term.alt[i] + mincol, 0, (col - mincol) * sizeof(Glyph));
}
/* allocate any new rows */
- for(/* i == minrow */; i < row; i++)
+ for(/* i == minrow */; i < row; i++) {
term.line[i] = calloc(col, sizeof(Glyph));
+ term.alt [i] = calloc(col, sizeof(Glyph));
+ }
/* update terminal size */
term.col = col, term.row = row;
@@ -1077,6 +1212,7 @@ xinit(void) {
xw.bufw = xw.w - 2*BORDER;
xw.bufh = xw.h - 2*BORDER;
xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+ xw.hasfocus = 1;
/* gc */
dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
XMapWindow(xw.dis, xw.win);
@@ -1168,7 +1304,7 @@ draw(int redraw_all) {
int i, x, y, ox;
Glyph base, new;
char buf[DRAW_BUF_SIZ];
-
+
XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
XFillRectangle(xw.dis, xw.buf, dc.gc, 0, 0, xw.bufw, xw.bufh);
for(y = 0; y < term.row; y++) {
@@ -1176,8 +1312,10 @@ draw(int redraw_all) {
i = ox = 0;
for(x = 0; x < term.col; x++) {
new = term.line[y][x];
+ if(selbx!=-1 && new.c && selected(x, y))
+ new.mode ^= ATTR_REVERSE;
if(i > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
- i >= DRAW_BUF_SIZ)) {
+ i >= DRAW_BUF_SIZ)) {
xdraws(buf, base, ox, y, i);
i = 0;
}
@@ -1293,7 +1431,7 @@ run(void) {
XEvent ev;
fd_set rfd;
int xfd = XConnectionNumber(xw.dis);
- long mask = ExposureMask | KeyPressMask | StructureNotifyMask | FocusChangeMask;
+ long mask = ExposureMask | KeyPressMask | StructureNotifyMask | FocusChangeMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
XSelectInput(xw.dis, xw.win, mask);
XResizeWindow(xw.dis, xw.win, xw.w, xw.h); /* XXX: fix resize bug in wmii (?) */