#include <sys/wait.h>
#include <unistd.h>
#include <X11/Xlib.h>
+#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/Xutil.h>
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 */
Colormap cmap;
Window win;
Pixmap buf;
+ XIM xim;
+ XIC xic;
int scr;
int w; /* window width */
int h; /* window height */
int bufh; /* pixmap height */
int ch; /* char height */
int cw; /* char width */
- int hasfocus;
- 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 brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
-
+static void selection_notify(XEvent *);
+static void selection_request(XEvent *);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
[MotionNotify] = bmotion,
[ButtonPress] = bpress,
[ButtonRelease] = brelease,
+ [SelectionNotify] = selection_notify,
+ [SelectionRequest] = selection_request,
};
/* Globals */
}
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;
+ if(b)
+ *b = e->xbutton.button;
+
*x = e->xbutton.x/xw.cw;
*y = e->xbutton.y/xw.ch;
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
return str;
}
-/* TODO: use X11 clipboard */
+static void selection_notify(XEvent *e) {
+ unsigned long nitems;
+ unsigned long length;
+ int format, res;
+ 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");
+ 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);
+ }
+}
+
+static void selpaste() {
+ XConvertSelection(xw.dis, XA_PRIMARY, XA_STRING, XA_PRIMARY, xw.win, CurrentTime);
+}
+
+static void selection_request(XEvent *e)
+{
+ XSelectionRequestEvent *xsre;
+ XSelectionEvent xev;
+ int res;
+ Atom xa_targets;
+
+ xsre = (XSelectionRequestEvent *) e;
+ xev.type = SelectionNotify;
+ xev.requestor = xsre->requestor;
+ xev.selection = xsre->selection;
+ xev.target = xsre->target;
+ xev.time = xsre->time;
+ /* reject */
+ xev.property = None;
+
+ xa_targets = XInternAtom(xw.dis, "TARGETS", 0);
+ 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;
+ }
+ } 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;
+ }
+ }
+
+ /* 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");
+ }
+}
+
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;
-}
-static void selpaste() {
- if(sel.clip)
- ttywrite(sel.clip, strlen(sel.clip));
+ res = XSetSelectionOwner(xw.dis, XA_PRIMARY, xw.win, CurrentTime);
+ switch(res) {
+ case BadAtom:
+ case BadWindow:
+ fprintf(stderr, "Invalid copy, XSetSelectionOwner");
+ return;
+ }
+
+ 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;
+ }
+
+ XFlush(xw.dis);
}
/* TODO: doubleclick to select word */
}
void
-tnewline(void) {
+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(0, y);
+ tmoveto(first_col ? 0 : term.c.x, y);
}
void
void
tclearregion(int x1, int y1, int x2, int y2) {
- int y, temp;
+ int x, y, temp;
if(x1 > x2)
temp = x1, x1 = x2, x2 = temp;
LIMIT(y2, 0, term.row-1);
for(y = y1; y <= y2; y++)
- memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1));
+ for(x = x1; x <= x2; x++)
+ term.line[y][x].state = 0;
}
void
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 */
tmoveto(0, term.c.y);
break;
case '\n':
- tnewline();
+ /* go to first col if the mode is set */
+ tnewline(IS_SET(MODE_CRLF));
break;
case '\a':
- if(!xw.hasfocus)
+ 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);
void
tresize(int col, int row) {
- int i;
+ int i, x;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
int slide = term.c.y - row + 1;
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));
+ for(x = mincol; x < col; x++) {
+ term.line[i][x].state = 0;
+ term.alt[i][x].state = 0;
+ }
}
/* allocate any new rows */
| CWColormap,
&attrs);
xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+
+
+ /* input methods */
+ xw.xim = XOpenIM(xw.dis, NULL, NULL, NULL);
+ xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
+ | XIMStatusNothing, XNClientWindow, xw.win,
+ XNFocusWindow, xw.win, NULL);
/* gc */
dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
- if(!(term.c.state & CURSOR_HIDE) && xw.hasfocus) {
+ 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.hasfocus = ev->type == FocusIn))
+ if(ev->type == FocusIn) {
+ xw.state |= WIN_FOCUSED;
xseturgency(0);
+ } else
+ xw.state &= ~WIN_FOCUSED;
draw(SCREEN_UPDATE);
}
int len;
int meta;
int shift;
+ Status status;
meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
- len = XLookupString(e, buf, sizeof(buf), &ksym, NULL);
-
+ 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:
break;
case XK_Insert:
if(shift)
- selpaste(), draw(1);
+ 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;
}
}
}
while(XPending(xw.dis)) {
XNextEvent(xw.dis, &ev);
+ if (XFilterEvent(&ev, xw.win))
+ continue;
if(handler[ev.type])
(handler[ev.type])(&ev);
}
Got questions, comments, patches, etc.? Contact Jason Woofenden