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initial implementation of selection and clipboard

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pancake 2010-08-30 23:41:37 +02:00
parent e1ce89f267
commit 0ba53e48c7
1 changed files with 108 additions and 3 deletions
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111
st.c
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@ -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 (?) */