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, MODE_ALTSCREEN=8 };
+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 };
typedef struct {
char c; /* character code */
int bufh; /* pixmap height */
int ch; /* char height */
int cw; /* char width */
- int focus;
- int vis; /* is visible */
+ char state; /* focus, redraw, visible */
} XWindow;
typedef struct {
static void tinsertblankline(int);
static void tmoveto(int, int);
static void tnew(int, int);
-static void tnewline(void);
+static void tnewline(int);
static void tputtab(void);
static void tputc(char);
static void tputs(char*, int);
static void treset(void);
-static void tresize(int, int);
+static int tresize(int, int);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int*, int);
static void xinit(void);
static void xloadcols(void);
static void xseturgency(int);
+static void xresize(int, int);
static void expose(XEvent *);
static void visibility(XEvent *);
static void selection_notify(XEvent *e) {
unsigned long nitems;
- unsigned long length;
- int format, res;
+ unsigned long ofs, rem;
+ int format;
unsigned char *data;
Atom type;
- res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, 0, False,
- AnyPropertyType, &type, &format, &nitems, &length, &data);
- switch(res) {
- case BadAtom:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Invalid paste, XGetWindowProperty0");
+ ofs = 0;
+ do {
+ if(XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
+ False, AnyPropertyType, &type, &format,
+ &nitems, &rem, &data)) {
+ fprintf(stderr, "Clipboard allocation failed\n");
return;
- }
-
- res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, length, False,
- AnyPropertyType, &type, &format, &nitems, &length, &data);
- switch(res) {
- case BadAtom:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Invalid paste, XGetWindowProperty0");
- return;
- }
-
- if(data) {
+ }
ttywrite((const char *) data, nitems * format / 8);
XFree(data);
- }
+ /* number of 32-bit chunks returned */
+ ofs += nitems * format / 32;
+ } while(rem > 0);
}
static void selpaste() {
{
XSelectionRequestEvent *xsre;
XSelectionEvent xev;
- int res;
Atom xa_targets;
xsre = (XSelectionRequestEvent *) e;
if(xsre->target == xa_targets) {
/* respond with the supported type */
Atom string = XA_STRING;
- res = XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32,
- PropModeReplace, (unsigned char *) &string, 1);
- switch(res) {
- case BadAlloc:
- case BadAtom:
- case BadMatch:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_request, TARGETS");
- break;
- default:
- xev.property = xsre->property;
- }
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char *) &string, 1);
+ xev.property = xsre->property;
} else if(xsre->target == XA_STRING) {
- res = XChangeProperty(xsre->display, xsre->requestor, xsre->property,
- xsre->target, 8, PropModeReplace, (unsigned char *) sel.clip,
- strlen(sel.clip));
- switch(res) {
- case BadAlloc:
- case BadAtom:
- case BadMatch:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_request, XA_STRING");
- break;
- default:
- xev.property = xsre->property;
- }
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ xsre->target, 8, PropModeReplace,
+ (unsigned char *) sel.clip, strlen(sel.clip));
+ xev.property = xsre->property;
}
/* all done, send a notification to the listener */
- res = XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev);
- switch(res) {
- case 0:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_requested, XSendEvent");
- }
+ if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
+ fprintf(stderr, "Error sending SelectionNotify event\n");
}
static void selcopy(char *str) {
/* register the selection for both the clipboard and the primary */
Atom clipboard;
- int res;
free(sel.clip);
sel.clip = str;
- res = XSetSelectionOwner(xw.dis, XA_PRIMARY, xw.win, CurrentTime);
- switch(res) {
- case BadAtom:
- case BadWindow:
- fprintf(stderr, "Invalid copy, XSetSelectionOwner");
- return;
- }
+ XSetSelectionOwner(xw.dis, XA_PRIMARY, xw.win, CurrentTime);
clipboard = XInternAtom(xw.dis, "CLIPBOARD", 0);
- res = XSetSelectionOwner(xw.dis, clipboard, xw.win, CurrentTime);
- switch(res) {
- case BadAtom:
- case BadWindow:
- fprintf(stderr, "Invalid copy, XSetSelectionOwner");
- return;
- }
+ XSetSelectionOwner(xw.dis, clipboard, xw.win, CurrentTime);
XFlush(xw.dis);
}
}
void
-tnewline(void) {
- int x = term.c.x+1 < term.col ? term.c.x : 0;
+tnewline(int first_col) {
int y = term.c.y;
- if(term.c.y == term.bot)
+ if(y == term.bot)
tscrollup(term.top, 1);
else
y++;
- tmoveto(x, y);
+ tmoveto(first_col ? 0 : term.c.x, y);
}
void
case 'J': /* ED -- Clear screen */
switch(escseq.arg[0]) {
case 0: /* below */
- tclearregion(term.c.x, term.c.y, term.col-1, term.row-1);
+ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
+ if(term.c.y < term.row-1)
+ tclearregion(0, term.c.y+1, term.col-1, term.row-1);
break;
case 1: /* above */
- tclearregion(0, 0, term.c.x, term.c.y);
+ if(term.c.y > 1)
+ tclearregion(0, 0, term.col-1, term.c.y-1);
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
break;
case 2: /* all */
tclearregion(0, 0, term.col-1, term.row-1);
break;
case 12: /* att610 -- Stop blinking cursor (IGNORED) */
break;
+ case 20:
+ term.mode &= ~MODE_CRLF;
+ break;
case 25:
term.c.state |= CURSOR_HIDE;
break;
case 7:
term.mode |= MODE_WRAP;
break;
+ case 20:
+ term.mode |= MODE_CRLF;
+ break;
case 12: /* att610 -- Start blinking cursor (IGNORED) */
/* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
if(escseq.narg > 1 && escseq.arg[1] != 25)
term.esc = 0;
break;
case 'E': /* NEL -- Next line */
- tnewline();
+ tnewline(1); /* always go to first col */
term.esc = 0;
break;
case 'M': /* RI -- Reverse index */
case '\r':
tmoveto(0, term.c.y);
break;
+ case '\f':
+ case '\v':
case '\n':
- tnewline();
+ /* go to first col if the mode is set */
+ tnewline(IS_SET(MODE_CRLF));
break;
case '\a':
- if(!xw.focus)
+ if(!(xw.state & WIN_FOCUSED))
xseturgency(1);
break;
case '\033':
break;
default:
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
- tnewline();
+ tnewline(1); /* always go to first col */
tsetchar(c);
if(term.c.x+1 < term.col)
tmoveto(term.c.x+1, term.c.y);
tputc(*s++);
}
-void
+int
tresize(int col, int row) {
int i, x;
int minrow = MIN(row, term.row);
int slide = term.c.y - row + 1;
if(col < 1 || row < 1)
- return;
+ return 0;
/* free unneeded rows */
i = 0;
tmoveto(term.c.x, term.c.y);
/* reset scrolling region */
tsetscroll(0, row-1);
+ return (slide > 0);
+}
+
+void
+xresize(int col, int row) {
+ Pixmap newbuf;
+ int oldw, oldh;
+
+ oldw = xw.bufw;
+ oldh = xw.bufh;
+ xw.bufw = MAX(1, col * xw.cw);
+ xw.bufh = MAX(1, row * xw.ch);
+ newbuf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+ XCopyArea(xw.dis, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
+ XFreePixmap(xw.dis, xw.buf);
+ XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
+ if(xw.bufw > oldw)
+ XFillRectangle(xw.dis, newbuf, dc.gc, oldw, 0,
+ xw.bufw-oldw, MIN(xw.bufh, oldh));
+ else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
+ XClearArea(xw.dis, xw.win, BORDER+xw.bufw, BORDER,
+ xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
+ False);
+ if(xw.bufh > oldh)
+ XFillRectangle(xw.dis, newbuf, dc.gc, 0, oldh,
+ xw.bufw, xw.bufh-oldh);
+ else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
+ XClearArea(xw.dis, xw.win, BORDER, BORDER+xw.bufh,
+ xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
+ False);
+ xw.buf = newbuf;
}
void
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
- if(!(term.c.state & CURSOR_HIDE) && xw.focus) {
+ if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
xdraws(&g.c, g, term.c.x, term.c.y, 1);
oldx = term.c.x, oldy = term.c.y;
}
Glyph base, new;
char buf[DRAW_BUF_SIZ];
- if(!xw.vis)
+ if(!(xw.state & WIN_VISIBLE))
return;
xclear(0, 0, term.col-1, term.row-1);
}
xdrawcursor();
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
- XFlush(xw.dis);
}
#endif
void
expose(XEvent *ev) {
- draw(SCREEN_REDRAW);
+ XExposeEvent *e = &ev->xexpose;
+ if(xw.state & WIN_REDRAW) {
+ if(!e->count) {
+ xw.state &= ~WIN_REDRAW;
+ draw(SCREEN_REDRAW);
+ }
+ } else
+ XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
+ e->width, e->height, e->x, e->y);
}
void
visibility(XEvent *ev) {
XVisibilityEvent *e = &ev->xvisibility;
- /* XXX if this goes from 0 to 1, need a full redraw for next Expose,
- * not just a buf copy */
- xw.vis = e->state != VisibilityFullyObscured;
+ if(e->state == VisibilityFullyObscured)
+ xw.state &= ~WIN_VISIBLE;
+ else if(!(xw.state & WIN_VISIBLE))
+ /* need a full redraw for next Expose, not just a buf copy */
+ xw.state |= WIN_VISIBLE | WIN_REDRAW;
}
void
unmap(XEvent *ev) {
- xw.vis = 0;
+ xw.state &= ~WIN_VISIBLE;
}
void
void
focus(XEvent *ev) {
- if((xw.focus = ev->type == FocusIn))
+ if(ev->type == FocusIn) {
+ xw.state |= WIN_FOCUSED;
xseturgency(0);
+ } else
+ xw.state &= ~WIN_FOCUSED;
draw(SCREEN_UPDATE);
}
meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
-
+
+ /* 1. custom keys from config.h */
if((customkey = kmap(ksym)))
ttywrite(customkey, strlen(customkey));
- else if(len > 0) {
- buf[sizeof(buf)-1] = '\0';
- if(meta && len == 1)
- ttywrite("\033", 1);
- ttywrite(buf, len);
- } else
+ /* 2. hardcoded (overrides X lookup) */
+ else
switch(ksym) {
case XK_Up:
case XK_Down:
if(shift)
selpaste();
break;
+ case XK_Return:
+ if(IS_SET(MODE_CRLF))
+ ttywrite("\r\n", 2);
+ else
+ ttywrite("\r", 1);
+ break;
+ /* 3. X lookup */
default:
- fprintf(stderr, "errkey: %d\n", (int)ksym);
+ if(len > 0) {
+ buf[sizeof(buf)-1] = '\0';
+ if(meta && len == 1)
+ ttywrite("\033", 1);
+ ttywrite(buf, len);
+ } else /* 4. nothing to send */
+ fprintf(stderr, "errkey: %d\n", (int)ksym);
break;
}
}
xw.w = e->xconfigure.width;
xw.h = e->xconfigure.height;
- xw.bufw = xw.w - 2*BORDER;
- xw.bufh = xw.h - 2*BORDER;
- col = xw.bufw / xw.cw;
- row = xw.bufh / xw.ch;
- tresize(col, row);
+ col = (xw.w - 2*BORDER) / xw.cw;
+ row = (xw.h - 2*BORDER) / xw.ch;
+ if(col == term.col && row == term.row)
+ return;
+ if(tresize(col, row))
+ draw(SCREEN_REDRAW);
ttyresize(col, row);
- xw.bufh = MAX(1, xw.bufh);
- xw.bufw = MAX(1, xw.bufw);
- XFreePixmap(xw.dis, xw.buf);
- xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+ xresize(col, row);
}
void
Got questions, comments, patches, etc.? Contact Jason Woofenden