# st

Unnamed repository; edit this file 'description' to name the repository.

| Log | Files | Refs | README | LICENSE

    commit 0ba53e48c76a2a2668dfa270cfd0227461c3a91b
    parent e1ce89f2678628b1c0e904800822a553de2817de
    Author: pancake <pancake@nopcode.org>
    Date:   Mon, 30 Aug 2010 23:41:37 +0200

    initial implementation of selection and clipboard

    Diffstat:
    Mst.c | 111++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---

    1 file changed, 108 insertions(+), 3 deletions(-)
    diff --git a/st.c b/st.c
    @@ -177,6 +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 *) = {
    @@ -185,6 +188,9 @@ static void (*handler[LASTEvent])(XEvent *) = {
     	[ConfigureNotify] = resize,
     	[FocusIn] = focus,
     	[FocusOut] = focus,
    +	[MotionNotify] = bmotion,
    +	[ButtonPress] = bpress,
    +	[ButtonRelease] = brelease,
     };

     /* Globals */
    @@ -195,6 +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 if(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) {
    @@ -1210,7 +1313,7 @@ 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++) {
    @@ -1218,8 +1321,10 @@ 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;
     			}
    @@ -1335,7 +1440,7 @@ 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 (?) */