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1a1d492cd8
st/x.c
bakkeby 1a1d492cd8 Adding alpha-focus-highlight patch
2021-05-09 14:40:30 +02:00

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/* See LICENSE for license details. */
#include <errno.h>
#include <math.h>
#include <limits.h>
#include <locale.h>
#include <signal.h>
#include <sys/select.h>
#include <time.h>
#include <unistd.h>
#include <libgen.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xft/Xft.h>
#include <X11/XKBlib.h>
char *argv0;
#include "arg.h"
#include "st.h"
#include "win.h"
#if LIGATURES_PATCH
#include "hb.h"
#endif // LIGATURES_PATCH
#if THEMED_CURSOR_PATCH
#include <X11/Xcursor/Xcursor.h>
#endif // THEMED_CURSOR_PATCH
/* X modifiers */
#define XK_ANY_MOD UINT_MAX
#define XK_NO_MOD 0
#define XK_SWITCH_MOD (1<<13)
/* function definitions used in config.h */
static void clipcopy(const Arg *);
static void clippaste(const Arg *);
static void numlock(const Arg *);
static void selpaste(const Arg *);
static void ttysend(const Arg *);
static void zoom(const Arg *);
static void zoomabs(const Arg *);
static void zoomreset(const Arg *);
#include "patch/st_include.h"
#include "patch/x_include.h"
/* config.h for applying patches and the configuration. */
#include "config.h"
/* XEMBED messages */
#define XEMBED_FOCUS_IN 4
#define XEMBED_FOCUS_OUT 5
/* macros */
#define IS_SET(flag) ((win.mode & (flag)) != 0)
#define TRUERED(x) (((x) & 0xff0000) >> 8)
#define TRUEGREEN(x) (((x) & 0xff00))
#define TRUEBLUE(x) (((x) & 0xff) << 8)
static inline ushort sixd_to_16bit(int);
static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
#if WIDE_GLYPHS_PATCH
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
#else
static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
#endif // WIDE_GLYPHS_PATCH
static void xdrawglyph(Glyph, int, int);
static void xclear(int, int, int, int);
static int xgeommasktogravity(int);
static int ximopen(Display *);
static void ximinstantiate(Display *, XPointer, XPointer);
static void ximdestroy(XIM, XPointer, XPointer);
static int xicdestroy(XIC, XPointer, XPointer);
static void xinit(int, int);
static void cresize(int, int);
static void xresize(int, int);
static void xhints(void);
static int xloadcolor(int, const char *, Color *);
static int xloadfont(Font *, FcPattern *);
static void xloadfonts(char *, double);
static void xunloadfont(Font *);
static void xunloadfonts(void);
static void xsetenv(void);
static void xseturgency(int);
static int evcol(XEvent *);
static int evrow(XEvent *);
static void expose(XEvent *);
static void visibility(XEvent *);
static void unmap(XEvent *);
static void kpress(XEvent *);
static void cmessage(XEvent *);
static void resize(XEvent *);
static void focus(XEvent *);
static uint buttonmask(uint);
static void brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
static void propnotify(XEvent *);
static void selnotify(XEvent *);
static void selclear_(XEvent *);
static void selrequest(XEvent *);
static void setsel(char *, Time);
static int mouseaction(XEvent *, uint);
static void mousesel(XEvent *, int);
static void mousereport(XEvent *);
static char *kmap(KeySym, uint);
static int match(uint, uint);
static void run(void);
static void usage(void);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
[ClientMessage] = cmessage,
[ConfigureNotify] = resize,
[VisibilityNotify] = visibility,
[UnmapNotify] = unmap,
[Expose] = expose,
[FocusIn] = focus,
[FocusOut] = focus,
[MotionNotify] = bmotion,
[ButtonPress] = bpress,
[ButtonRelease] = brelease,
/*
* Uncomment if you want the selection to disappear when you select something
* different in another window.
*/
/* [SelectionClear] = selclear_, */
[SelectionNotify] = selnotify,
/*
* PropertyNotify is only turned on when there is some INCR transfer happening
* for the selection retrieval.
*/
[PropertyNotify] = propnotify,
[SelectionRequest] = selrequest,
#if ST_EMBEDDER_PATCH
[CreateNotify] = createnotify,
[DestroyNotify] = destroynotify,
#endif // ST_EMBEDDER_PATCH
};
/* Globals */
Term term;
DC dc;
XWindow xw;
XSelection xsel;
TermWindow win;
/* Font Ring Cache */
enum {
FRC_NORMAL,
FRC_ITALIC,
FRC_BOLD,
FRC_ITALICBOLD
};
typedef struct {
XftFont *font;
int flags;
Rune unicodep;
} Fontcache;
/* Fontcache is an array now. A new font will be appended to the array. */
static Fontcache *frc = NULL;
static int frclen = 0;
static int frccap = 0;
static char *usedfont = NULL;
static double usedfontsize = 0;
static double defaultfontsize = 0;
#if ALPHA_PATCH
static char *opt_alpha = NULL;
#endif // ALPHA_PATCH
static char *opt_class = NULL;
static char **opt_cmd = NULL;
static char *opt_embed = NULL;
static char *opt_font = NULL;
static char *opt_io = NULL;
static char *opt_line = NULL;
static char *opt_name = NULL;
static char *opt_title = NULL;
#if WORKINGDIR_PATCH
static char *opt_dir = NULL;
#endif // WORKINGDIR_PATCH
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
static int focused = 0;
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
static int oldbutton = 3; /* button event on startup: 3 = release */
#if BLINKING_CURSOR_PATCH
static int cursorblinks = 0;
#endif // BLINKING_CURSOR_PATCH
#if VISUALBELL_1_PATCH
static int bellon = 0; /* visual bell status */
#endif // VISUALBELL_1_PATCH
#if RELATIVEBORDER_PATCH
int borderpx;
#endif // RELATIVEBORDER_PATCH
#include "patch/x_include.c"
void
clipcopy(const Arg *dummy)
{
Atom clipboard;
free(xsel.clipboard);
xsel.clipboard = NULL;
if (xsel.primary != NULL) {
xsel.clipboard = xstrdup(xsel.primary);
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
}
}
void
clippaste(const Arg *dummy)
{
Atom clipboard;
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard,
xw.win, CurrentTime);
}
void
numlock(const Arg *dummy)
{
win.mode ^= MODE_NUMLOCK;
}
void
selpaste(const Arg *dummy)
{
XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,
xw.win, CurrentTime);
}
void
ttysend(const Arg *arg)
{
ttywrite(arg->s, strlen(arg->s), 1);
}
void
zoom(const Arg *arg)
{
Arg larg;
larg.f = usedfontsize + arg->f;
zoomabs(&larg);
}
void
zoomabs(const Arg *arg)
{
xunloadfonts();
xloadfonts(usedfont, arg->f);
#if FONT2_PATCH
xloadsparefonts();
#endif // FONT2_PATCH
cresize(0, 0);
redraw();
xhints();
}
void
zoomreset(const Arg *arg)
{
Arg larg;
if (defaultfontsize > 0) {
larg.f = defaultfontsize;
zoomabs(&larg);
}
}
int
evcol(XEvent *e)
{
#if ANYSIZE_PATCH
int x = e->xbutton.x - win.hborderpx;
#else
int x = e->xbutton.x - borderpx;
#endif // ANYSIZE_PATCH
LIMIT(x, 0, win.tw - 1);
return x / win.cw;
}
int
evrow(XEvent *e)
{
#if ANYSIZE_PATCH
int y = e->xbutton.y - win.vborderpx;
#else
int y = e->xbutton.y - borderpx;
#endif // ANYSIZE_PATCH
LIMIT(y, 0, win.th - 1);
return y / win.ch;
}
uint
buttonmask(uint button)
{
return button == Button1 ? Button1Mask
: button == Button2 ? Button2Mask
: button == Button3 ? Button3Mask
: button == Button4 ? Button4Mask
: button == Button5 ? Button5Mask
: 0;
}
int
mouseaction(XEvent *e, uint release)
{
MouseShortcut *ms;
/* ignore Button<N>mask for Button<N> - it's set on release */
uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
if (tisaltscr())
for (ms = maltshortcuts; ms < maltshortcuts + LEN(maltshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
return 1;
}
}
else
#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH
for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
if (ms->release == release &&
ms->button == e->xbutton.button &&
#if UNIVERSCROLL_PATCH
(!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&
#endif // UNIVERSCROLL_PATCH
(match(ms->mod, state) || /* exact or forced */
match(ms->mod, state & ~forcemousemod))) {
ms->func(&(ms->arg));
return 1;
}
}
return 0;
}
void
mousesel(XEvent *e, int done)
{
int type, seltype = SEL_REGULAR;
uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
for (type = 1; type < LEN(selmasks); ++type) {
if (match(selmasks[type], state)) {
seltype = type;
break;
}
}
selextend(evcol(e), evrow(e), seltype, done);
if (done)
setsel(getsel(), e->xbutton.time);
}
void
mousereport(XEvent *e)
{
int len, x = evcol(e), y = evrow(e),
button = e->xbutton.button, state = e->xbutton.state;
char buf[40];
static int ox, oy;
/* from urxvt */
if (e->xbutton.type == MotionNotify) {
if (x == ox && y == oy)
return;
if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
return;
/* MOUSE_MOTION: no reporting if no button is pressed */
if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
return;
button = oldbutton + 32;
ox = x;
oy = y;
} else {
if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
button = 3;
} else {
button -= Button1;
if (button >= 3)
button += 64 - 3;
}
if (e->xbutton.type == ButtonPress) {
oldbutton = button;
ox = x;
oy = y;
} else if (e->xbutton.type == ButtonRelease) {
oldbutton = 3;
/* MODE_MOUSEX10: no button release reporting */
if (IS_SET(MODE_MOUSEX10))
return;
if (button == 64 || button == 65)
return;
}
}
if (!IS_SET(MODE_MOUSEX10)) {
button += ((state & ShiftMask ) ? 4 : 0)
+ ((state & Mod4Mask ) ? 8 : 0)
+ ((state & ControlMask) ? 16 : 0);
}
if (IS_SET(MODE_MOUSESGR)) {
len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
button, x+1, y+1,
e->xbutton.type == ButtonRelease ? 'm' : 'M');
} else if (x < 223 && y < 223) {
len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
32+button, 32+x+1, 32+y+1);
} else {
return;
}
ttywrite(buf, len, 0);
}
void
bpress(XEvent *e)
{
struct timespec now;
int snap;
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e);
return;
}
if (mouseaction(e, 0))
return;
if (e->xbutton.button == Button1) {
/*
* If the user clicks below predefined timeouts specific
* snapping behaviour is exposed.
*/
clock_gettime(CLOCK_MONOTONIC, &now);
if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) {
snap = SNAP_LINE;
} else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) {
snap = SNAP_WORD;
} else {
snap = 0;
}
xsel.tclick2 = xsel.tclick1;
xsel.tclick1 = now;
selstart(evcol(e), evrow(e), snap);
}
}
void
propnotify(XEvent *e)
{
XPropertyEvent *xpev;
Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
xpev = &e->xproperty;
if (xpev->state == PropertyNewValue &&
(xpev->atom == XA_PRIMARY ||
xpev->atom == clipboard)) {
selnotify(e);
}
}
void
selnotify(XEvent *e)
{
ulong nitems, ofs, rem;
int format;
uchar *data, *last, *repl;
Atom type, incratom, property = None;
incratom = XInternAtom(xw.dpy, "INCR", 0);
ofs = 0;
if (e->type == SelectionNotify)
property = e->xselection.property;
else if (e->type == PropertyNotify)
property = e->xproperty.atom;
if (property == None)
return;
do {
if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
BUFSIZ/4, False, AnyPropertyType,
&type, &format, &nitems, &rem,
&data)) {
fprintf(stderr, "Clipboard allocation failed\n");
return;
}
if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
/*
* If there is some PropertyNotify with no data, then
* this is the signal of the selection owner that all
* data has been transferred. We won't need to receive
* PropertyNotify events anymore.
*/
MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
&xw.attrs);
}
if (type == incratom) {
/*
* Activate the PropertyNotify events so we receive
* when the selection owner does send us the next
* chunk of data.
*/
MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
&xw.attrs);
/*
* Deleting the property is the transfer start signal.
*/
XDeleteProperty(xw.dpy, xw.win, (int)property);
continue;
}
/*
* As seen in getsel:
* Line endings are inconsistent in the terminal and GUI world
* copy and pasting. When receiving some selection data,
* replace all '\n' with '\r'.
* FIXME: Fix the computer world.
*/
repl = data;
last = data + nitems * format / 8;
while ((repl = memchr(repl, '\n', last - repl))) {
*repl++ = '\r';
}
if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
ttywrite("\033[200~", 6, 0);
ttywrite((char *)data, nitems * format / 8, 1);
if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
ttywrite("\033[201~", 6, 0);
XFree(data);
/* number of 32-bit chunks returned */
ofs += nitems * format / 32;
} while (rem > 0);
/*
* Deleting the property again tells the selection owner to send the
* next data chunk in the property.
*/
XDeleteProperty(xw.dpy, xw.win, (int)property);
}
void
xclipcopy(void)
{
clipcopy(NULL);
}
void
selclear_(XEvent *e)
{
selclear();
}
void
selrequest(XEvent *e)
{
XSelectionRequestEvent *xsre;
XSelectionEvent xev;
Atom xa_targets, string, clipboard;
char *seltext;
xsre = (XSelectionRequestEvent *) e;
xev.type = SelectionNotify;
xev.requestor = xsre->requestor;
xev.selection = xsre->selection;
xev.target = xsre->target;
xev.time = xsre->time;
if (xsre->property == None)
xsre->property = xsre->target;
/* reject */
xev.property = None;
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
if (xsre->target == xa_targets) {
/* respond with the supported type */
string = xsel.xtarget;
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
XA_ATOM, 32, PropModeReplace,
(uchar *) &string, 1);
xev.property = xsre->property;
} else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) {
/*
* xith XA_STRING non ascii characters may be incorrect in the
* requestor. It is not our problem, use utf8.
*/
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
if (xsre->selection == XA_PRIMARY) {
seltext = xsel.primary;
} else if (xsre->selection == clipboard) {
seltext = xsel.clipboard;
} else {
fprintf(stderr,
"Unhandled clipboard selection 0x%lx\n",
xsre->selection);
return;
}
if (seltext != NULL) {
XChangeProperty(xsre->display, xsre->requestor,
xsre->property, xsre->target,
8, PropModeReplace,
(uchar *)seltext, strlen(seltext));
xev.property = xsre->property;
}
}
/* all done, send a notification to the listener */
if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev))
fprintf(stderr, "Error sending SelectionNotify event\n");
}
void
setsel(char *str, Time t)
{
if (!str)
return;
free(xsel.primary);
xsel.primary = str;
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
selclear();
#if CLIPBOARD_PATCH
clipcopy(NULL);
#endif // CLIPBOARD_PATCH
}
void
xsetsel(char *str)
{
setsel(str, CurrentTime);
}
void
brelease(XEvent *e)
{
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e);
return;
}
if (mouseaction(e, 1))
return;
if (e->xbutton.button == Button1)
mousesel(e, 1);
#if RIGHTCLICKTOPLUMB_PATCH
else if (e->xbutton.button == Button3)
plumb(xsel.primary);
#endif // RIGHTCLICKTOPLUMB_PATCH
}
void
bmotion(XEvent *e)
{
#if HIDECURSOR_PATCH
if (!xw.pointerisvisible) {
XDefineCursor(xw.dpy, xw.win, xw.vpointer);
xw.pointerisvisible = 1;
if (!IS_SET(MODE_MOUSEMANY))
xsetpointermotion(0);
}
#endif // HIDECURSOR_PATCH
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
mousereport(e);
return;
}
mousesel(e, 0);
}
void
cresize(int width, int height)
{
int col, row;
if (width != 0)
win.w = width;
if (height != 0)
win.h = height;
col = (win.w - 2 * borderpx) / win.cw;
row = (win.h - 2 * borderpx) / win.ch;
col = MAX(1, col);
row = MAX(1, row);
#if ANYSIZE_PATCH
win.hborderpx = (win.w - col * win.cw) / 2;
win.vborderpx = (win.h - row * win.ch) / 2;
#endif // ANYSIZE_PATCH
tresize(col, row);
xresize(col, row);
ttyresize(win.tw, win.th);
}
void
xresize(int col, int row)
{
win.tw = col * win.cw;
win.th = row * win.ch;
#if !SINGLE_DRAWABLE_BUFFER_PATCH
XFreePixmap(xw.dpy, xw.buf);
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
#if ALPHA_PATCH
xw.depth
#else
DefaultDepth(xw.dpy, xw.scr)
#endif // ALPHA_PATCH
);
XftDrawChange(xw.draw, xw.buf);
#endif // SINGLE_DRAWABLE_BUFFER_PATCH
xclear(0, 0, win.w, win.h);
/* resize to new width */
xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec));
}
ushort
sixd_to_16bit(int x)
{
return x == 0 ? 0 : 0x3737 + 0x2828 * x;
}
int
xloadcolor(int i, const char *name, Color *ncolor)
{
XRenderColor color = { .alpha = 0xffff };
if (!name) {
if (BETWEEN(i, 16, 255)) { /* 256 color */
if (i < 6*6*6+16) { /* same colors as xterm */
color.red = sixd_to_16bit( ((i-16)/36)%6 );
color.green = sixd_to_16bit( ((i-16)/6) %6 );
color.blue = sixd_to_16bit( ((i-16)/1) %6 );
} else { /* greyscale */
color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
color.green = color.blue = color.red;
}
return XftColorAllocValue(xw.dpy, xw.vis,
xw.cmap, &color, ncolor);
} else
name = colorname[i];
}
return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
}
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
void
xloadalpha(void)
{
float const usedAlpha = focused ? alpha : alphaUnfocused;
if (opt_alpha) alpha = strtof(opt_alpha, NULL);
dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * usedAlpha);
dc.col[defaultbg].pixel &= 0x00FFFFFF;
dc.col[defaultbg].pixel |= (unsigned char)(0xff * usedAlpha) << 24;
}
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
void
xloadcols(void)
{
static int loaded;
Color *cp;
if (!loaded) {
dc.collen = 1 + (defaultbg = MAX(LEN(colorname), 256));
dc.col = xmalloc((dc.collen) * sizeof(Color));
}
for (int i = 0; i+1 < dc.collen; ++i)
if (!xloadcolor(i, NULL, &dc.col[i])) {
if (colorname[i])
die("could not allocate color '%s'\n", colorname[i]);
else
die("could not allocate color %d\n", i);
}
if (dc.collen) // cannot die, as the color is already loaded.
xloadcolor(focused ? bg : bgUnfocused, NULL, &dc.col[defaultbg]);
xloadalpha();
loaded = 1;
}
#else
void
xloadcols(void)
{
int i;
static int loaded;
Color *cp;
if (loaded) {
for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
} else {
dc.collen = MAX(LEN(colorname), 256);
dc.col = xmalloc(dc.collen * sizeof(Color));
}
for (i = 0; i < dc.collen; i++)
if (!xloadcolor(i, NULL, &dc.col[i])) {
if (colorname[i])
die("could not allocate color '%s'\n", colorname[i]);
else
die("could not allocate color %d\n", i);
}
#if ALPHA_PATCH
/* set alpha value of bg color */
if (opt_alpha)
alpha = strtof(opt_alpha, NULL);
dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
dc.col[defaultbg].pixel &= 0x00FFFFFF;
dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
#endif // ALPHA_PATCH
loaded = 1;
}
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
int
xsetcolorname(int x, const char *name)
{
Color ncolor;
if (!BETWEEN(x, 0, dc.collen))
return 1;
if (!xloadcolor(x, name, &ncolor))
return 1;
XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
dc.col[x] = ncolor;
#if ALPHA_PATCH
/* set alpha value of bg color */
if (x == defaultbg) {
if (opt_alpha)
alpha = strtof(opt_alpha, NULL);
dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
dc.col[defaultbg].pixel &= 0x00FFFFFF;
dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
}
#endif // ALPHA_PATCH
return 0;
}
/*
* Absolute coordinates.
*/
void
xclear(int x1, int y1, int x2, int y2)
{
#if INVERT_PATCH
Color c;
c = dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg];
if (invertcolors) {
c = invertedcolor(&c);
}
XftDrawRect(xw.draw, &c, x1, y1, x2-x1, y2-y1);
#else
XftDrawRect(xw.draw,
&dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
x1, y1, x2-x1, y2-y1);
#endif // INVERT_PATCH
}
void
xclearwin(void)
{
xclear(0, 0, win.w, win.h);
}
void
xhints(void)
{
#if XRESOURCES_PATCH
XClassHint class = {opt_name ? opt_name : "st",
opt_class ? opt_class : "St"};
#else
XClassHint class = {opt_name ? opt_name : termname,
opt_class ? opt_class : termname};
#endif // XRESOURCES_PATCH
XWMHints wm = {.flags = InputHint, .input = 1};
XSizeHints *sizeh;
sizeh = XAllocSizeHints();
sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
sizeh->height = win.h;
sizeh->width = win.w;
#if ANYSIZE_PATCH
sizeh->height_inc = 1;
sizeh->width_inc = 1;
#else
sizeh->height_inc = win.ch;
sizeh->width_inc = win.cw;
#endif // ANYSIZE_PATCH
sizeh->base_height = 2 * borderpx;
sizeh->base_width = 2 * borderpx;
sizeh->min_height = win.ch + 2 * borderpx;
sizeh->min_width = win.cw + 2 * borderpx;
if (xw.isfixed) {
sizeh->flags |= PMaxSize;
sizeh->min_width = sizeh->max_width = win.w;
sizeh->min_height = sizeh->max_height = win.h;
}
if (xw.gm & (XValue|YValue)) {
sizeh->flags |= USPosition | PWinGravity;
sizeh->x = xw.l;
sizeh->y = xw.t;
sizeh->win_gravity = xgeommasktogravity(xw.gm);
}
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
&class);
XFree(sizeh);
}
int
xgeommasktogravity(int mask)
{
switch (mask & (XNegative|YNegative)) {
case 0:
return NorthWestGravity;
case XNegative:
return NorthEastGravity;
case YNegative:
return SouthWestGravity;
}
return SouthEastGravity;
}
int
ximopen(Display *dpy)
{
XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
if (xw.ime.xim == NULL)
return 0;
if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
fprintf(stderr, "XSetIMValues: "
"Could not set XNDestroyCallback.\n");
xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
NULL);
if (xw.ime.xic == NULL) {
xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, xw.win,
XNDestroyCallback, &icdestroy,
NULL);
}
if (xw.ime.xic == NULL)
fprintf(stderr, "XCreateIC: Could not create input context.\n");
return 1;
}
void
ximinstantiate(Display *dpy, XPointer client, XPointer call)
{
if (ximopen(dpy))
XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
}
void
ximdestroy(XIM xim, XPointer client, XPointer call)
{
xw.ime.xim = NULL;
XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
XFree(xw.ime.spotlist);
}
int
xicdestroy(XIC xim, XPointer client, XPointer call)
{
xw.ime.xic = NULL;
return 1;
}
int
xloadfont(Font *f, FcPattern *pattern)
{
FcPattern *configured;
FcPattern *match;
FcResult result;
XGlyphInfo extents;
int wantattr, haveattr;
/*
* Manually configure instead of calling XftMatchFont
* so that we can use the configured pattern for
* "missing glyph" lookups.
*/
configured = FcPatternDuplicate(pattern);
if (!configured)
return 1;
FcConfigSubstitute(NULL, configured, FcMatchPattern);
XftDefaultSubstitute(xw.dpy, xw.scr, configured);
match = FcFontMatch(NULL, configured, &result);
if (!match) {
FcPatternDestroy(configured);
return 1;
}
if (!(f->match = XftFontOpenPattern(xw.dpy, match))) {
FcPatternDestroy(configured);
FcPatternDestroy(match);
return 1;
}
if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) ==
XftResultMatch)) {
/*
* Check if xft was unable to find a font with the appropriate
* slant but gave us one anyway. Try to mitigate.
*/
if ((XftPatternGetInteger(f->match->pattern, "slant", 0,
&haveattr) != XftResultMatch) || haveattr < wantattr) {
f->badslant = 1;
fputs("font slant does not match\n", stderr);
}
}
if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) ==
XftResultMatch)) {
if ((XftPatternGetInteger(f->match->pattern, "weight", 0,
&haveattr) != XftResultMatch) || haveattr != wantattr) {
f->badweight = 1;
fputs("font weight does not match\n", stderr);
}
}
XftTextExtentsUtf8(xw.dpy, f->match,
(const FcChar8 *) ascii_printable,
strlen(ascii_printable), &extents);
f->set = NULL;
f->pattern = configured;
f->ascent = f->match->ascent;
f->descent = f->match->descent;
f->lbearing = 0;
f->rbearing = f->match->max_advance_width;
f->height = f->ascent + f->descent;
#if WIDE_GLYPH_SPACING_PATCH
f->width = DIVCEIL(extents.xOff > 18 ? extents.xOff / 3 : extents.xOff, strlen(ascii_printable));
#else
f->width = DIVCEIL(extents.xOff, strlen(ascii_printable));
#endif //WIDE_GLYPH_SPACING_PATCH
return 0;
}
void
xloadfonts(char *fontstr, double fontsize)
{
FcPattern *pattern;
double fontval;
if (fontstr[0] == '-')
pattern = XftXlfdParse(fontstr, False, False);
else
pattern = FcNameParse((FcChar8 *)fontstr);
if (!pattern)
die("can't open font %s\n", fontstr);
if (fontsize > 1) {
FcPatternDel(pattern, FC_PIXEL_SIZE);
FcPatternDel(pattern, FC_SIZE);
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
usedfontsize = fontsize;
} else {
if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
FcResultMatch) {
usedfontsize = fontval;
} else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
FcResultMatch) {
usedfontsize = -1;
} else {
/*
* Default font size is 12, if none given. This is to
* have a known usedfontsize value.
*/
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
usedfontsize = 12;
}
defaultfontsize = usedfontsize;
}
if (xloadfont(&dc.font, pattern))
die("can't open font %s\n", fontstr);
if (usedfontsize < 0) {
FcPatternGetDouble(dc.font.match->pattern,
FC_PIXEL_SIZE, 0, &fontval);
usedfontsize = fontval;
if (fontsize == 0)
defaultfontsize = fontval;
}
/* Setting character width and height. */
win.cw = ceilf(dc.font.width * cwscale);
win.ch = ceilf(dc.font.height * chscale);
#if VERTCENTER_PATCH
win.cyo = ceilf(dc.font.height * (chscale - 1) / 2);
#endif // VERTCENTER_PATCH
#if RELATIVEBORDER_PATCH
borderpx = (int) ceilf(((float)borderperc / 100) * win.cw);
#endif // RELATIVEBORDER_PATCH
FcPatternDel(pattern, FC_SLANT);
#if !DISABLE_ITALIC_FONTS_PATCH
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
#endif // DISABLE_ITALIC_FONTS_PATCH
if (xloadfont(&dc.ifont, pattern))
die("can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_WEIGHT);
#if !DISABLE_BOLD_FONTS_PATCH
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
#endif // DISABLE_BOLD_FONTS_PATCH
if (xloadfont(&dc.ibfont, pattern))
die("can't open font %s\n", fontstr);
FcPatternDel(pattern, FC_SLANT);
#if !DISABLE_ROMAN_FONTS_PATCH
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
#endif // DISABLE_ROMAN_FONTS_PATCH
if (xloadfont(&dc.bfont, pattern))
die("can't open font %s\n", fontstr);
FcPatternDestroy(pattern);
}
void
xunloadfont(Font *f)
{
XftFontClose(xw.dpy, f->match);
FcPatternDestroy(f->pattern);
if (f->set)
FcFontSetDestroy(f->set);
}
void
xunloadfonts(void)
{
#if LIGATURES_PATCH
/* Clear Harfbuzz font cache. */
hbunloadfonts();
#endif // LIGATURES_PATCH
/* Free the loaded fonts in the font cache. */
while (frclen > 0)
XftFontClose(xw.dpy, frc[--frclen].font);
xunloadfont(&dc.font);
xunloadfont(&dc.bfont);
xunloadfont(&dc.ifont);
xunloadfont(&dc.ibfont);
}
void
xinit(int cols, int rows)
{
XGCValues gcvalues;
#if HIDECURSOR_PATCH
Pixmap blankpm;
#else
Cursor cursor;
#endif // HIDECURSOR_PATCH
Window parent;
pid_t thispid = getpid();
XColor xmousefg, xmousebg;
#if ALPHA_PATCH
XWindowAttributes attr;
XVisualInfo vis;
#endif // ALPHA_PATCH
if (!(xw.dpy = XOpenDisplay(NULL)))
die("can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
#if ALPHA_PATCH
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
parent = XRootWindow(xw.dpy, xw.scr);
xw.depth = 32;
} else {
XGetWindowAttributes(xw.dpy, parent, &attr);
xw.depth = attr.depth;
}
XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
xw.vis = vis.visual;
#else
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
#endif // ALPHA_PATCH
/* font */
if (!FcInit())
die("could not init fontconfig.\n");
usedfont = (opt_font == NULL)? font : opt_font;
xloadfonts(usedfont, 0);
#if FONT2_PATCH
/* spare fonts */
xloadsparefonts();
#endif // FONT2_PATCH
/* colors */
#if ALPHA_PATCH
xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
#else
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
#endif // ALPHA_PATCH
xloadcols();
/* adjust fixed window geometry */
#if ANYSIZE_PATCH
win.w = 2 * win.hborderpx + cols * win.cw;
win.h = 2 * win.vborderpx + rows * win.ch;
#else
win.w = 2 * borderpx + cols * win.cw;
win.h = 2 * borderpx + rows * win.ch;
#endif // ANYSIZE_PATCH
if (xw.gm & XNegative)
xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
if (xw.gm & YNegative)
xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2;
/* Events */
xw.attrs.background_pixel = dc.col[defaultbg].pixel;
xw.attrs.border_pixel = dc.col[defaultbg].pixel;
xw.attrs.bit_gravity = NorthWestGravity;
xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
#if ST_EMBEDDER_PATCH
| SubstructureNotifyMask | SubstructureRedirectMask
#endif // ST_EMBEDDER_PATCH
;
xw.attrs.colormap = xw.cmap;
#if !ALPHA_PATCH
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
parent = XRootWindow(xw.dpy, xw.scr);
#endif // ALPHA_PATCH
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
#if ALPHA_PATCH
win.w, win.h, 0, xw.depth, InputOutput,
#else
win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
#endif // ALPHA_PATCH
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
| CWEventMask | CWColormap, &xw.attrs);
memset(&gcvalues, 0, sizeof(gcvalues));
gcvalues.graphics_exposures = False;
#if ALPHA_PATCH
#if SINGLE_DRAWABLE_BUFFER_PATCH
xw.buf = xw.win;
#else
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
#endif // SINGLE_DRAWABLE_BUFFER_PATCH
dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
#else
dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
&gcvalues);
#if SINGLE_DRAWABLE_BUFFER_PATCH
xw.buf = xw.win;
#else
xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,
DefaultDepth(xw.dpy, xw.scr));
#endif // SINGLE_DRAWABLE_BUFFER_PATCH
#endif // ALPHA_PATCH
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
/* font spec buffer */
xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec));
/* Xft rendering context */
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
/* input methods */
if (!ximopen(xw.dpy)) {
XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
ximinstantiate, NULL);
}
/* white cursor, black outline */
#if HIDECURSOR_PATCH
xw.pointerisvisible = 1;
#if THEMED_CURSOR_PATCH
xw.vpointer = XcursorLibraryLoadCursor(xw.dpy, mouseshape);
#else
xw.vpointer = XCreateFontCursor(xw.dpy, mouseshape);
#endif // THEMED_CURSOR_PATCH
XDefineCursor(xw.dpy, xw.win, xw.vpointer);
#elif THEMED_CURSOR_PATCH
cursor = XcursorLibraryLoadCursor(xw.dpy, mouseshape);
XDefineCursor(xw.dpy, xw.win, cursor);
#else
cursor = XCreateFontCursor(xw.dpy, mouseshape);
XDefineCursor(xw.dpy, xw.win, cursor);
#endif // HIDECURSOR_PATCH
#if !THEMED_CURSOR_PATCH
if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
xmousefg.red = 0xffff;
xmousefg.green = 0xffff;
xmousefg.blue = 0xffff;
}
if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) {
xmousebg.red = 0x0000;
xmousebg.green = 0x0000;
xmousebg.blue = 0x0000;
}
#endif // THEMED_CURSOR_PATCH
#if HIDECURSOR_PATCH
#if !THEMED_CURSOR_PATCH
XRecolorCursor(xw.dpy, xw.vpointer, &xmousefg, &xmousebg);
#endif // THEMED_CURSOR_PATCH
blankpm = XCreateBitmapFromData(xw.dpy, xw.win, &(char){0}, 1, 1);
xw.bpointer = XCreatePixmapCursor(xw.dpy, blankpm, blankpm,
&xmousefg, &xmousebg, 0, 0);
#elif !THEMED_CURSOR_PATCH
XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
#endif // HIDECURSOR_PATCH
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
#if NETWMICON_PATCH
xw.netwmicon = XInternAtom(xw.dpy, "_NET_WM_ICON", False);
XChangeProperty(xw.dpy, xw.win, xw.netwmicon, XA_CARDINAL, 32,
PropModeReplace, (uchar *)&icon, LEN(icon));
#endif //NETWMICON_PATCH
xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
PropModeReplace, (uchar *)&thispid, 1);
win.mode = MODE_NUMLOCK;
resettitle();
xhints();
XMapWindow(xw.dpy, xw.win);
XSync(xw.dpy, False);
clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2);
xsel.primary = NULL;
xsel.clipboard = NULL;
xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
if (xsel.xtarget == None)
xsel.xtarget = XA_STRING;
#if BOXDRAW_PATCH
boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis);
#endif // BOXDRAW_PATCH
}
int
xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
{
#if ANYSIZE_PATCH
float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
#else
float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp;
#endif // ANYSIZE_PATCH
ushort mode, prevmode = USHRT_MAX;
Font *font = &dc.font;
int frcflags = FRC_NORMAL;
float runewidth = win.cw;
Rune rune;
FT_UInt glyphidx;
FcResult fcres;
FcPattern *fcpattern, *fontpattern;
FcFontSet *fcsets[] = { NULL };
FcCharSet *fccharset;
int i, f, numspecs = 0;
#if VERTCENTER_PATCH
for (i = 0, xp = winx, yp = winy + font->ascent + win.cyo; i < len; ++i)
#else
for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i)
#endif // VERTCENTER_PATCH
{
/* Fetch rune and mode for current glyph. */
rune = glyphs[i].u;
mode = glyphs[i].mode;
/* Skip dummy wide-character spacing. */
#if LIGATURES_PATCH
if (mode & ATTR_WDUMMY)
#else
if (mode == ATTR_WDUMMY)
#endif // LIGATURES_PATCH
continue;
/* Determine font for glyph if different from previous glyph. */
if (prevmode != mode) {
prevmode = mode;
font = &dc.font;
frcflags = FRC_NORMAL;
runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f);
if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
font = &dc.ibfont;
frcflags = FRC_ITALICBOLD;
} else if (mode & ATTR_ITALIC) {
font = &dc.ifont;
frcflags = FRC_ITALIC;
} else if (mode & ATTR_BOLD) {
font = &dc.bfont;
frcflags = FRC_BOLD;
}
#if VERTCENTER_PATCH
yp = winy + font->ascent + win.cyo;
#else
yp = winy + font->ascent;
#endif // VERTCENTER_PATCH
}
#if BOXDRAW_PATCH
if (mode & ATTR_BOXDRAW) {
/* minor shoehorning: boxdraw uses only this ushort */
glyphidx = boxdrawindex(&glyphs[i]);
} else {
/* Lookup character index with default font. */
glyphidx = XftCharIndex(xw.dpy, font->match, rune);
}
#else
/* Lookup character index with default font. */
glyphidx = XftCharIndex(xw.dpy, font->match, rune);
#endif // BOXDRAW_PATCH
if (glyphidx) {
specs[numspecs].font = font->match;
specs[numspecs].glyph = glyphidx;
specs[numspecs].x = (short)xp;
specs[numspecs].y = (short)yp;
xp += runewidth;
numspecs++;
continue;
}
/* Fallback on font cache, search the font cache for match. */
for (f = 0; f < frclen; f++) {
glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
/* Everything correct. */
if (glyphidx && frc[f].flags == frcflags)
break;
/* We got a default font for a not found glyph. */
if (!glyphidx && frc[f].flags == frcflags
&& frc[f].unicodep == rune) {
break;
}
}
/* Nothing was found. Use fontconfig to find matching font. */
if (f >= frclen) {
if (!font->set)
font->set = FcFontSort(0, font->pattern,
1, 0, &fcres);
fcsets[0] = font->set;
/*
* Nothing was found in the cache. Now use
* some dozen of Fontconfig calls to get the
* font for one single character.
*
* Xft and fontconfig are design failures.
*/
fcpattern = FcPatternDuplicate(font->pattern);
fccharset = FcCharSetCreate();
FcCharSetAddChar(fccharset, rune);
FcPatternAddCharSet(fcpattern, FC_CHARSET,
fccharset);
FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
FcConfigSubstitute(0, fcpattern,
FcMatchPattern);
FcDefaultSubstitute(fcpattern);
fontpattern = FcFontSetMatch(0, fcsets, 1,
fcpattern, &fcres);
/* Allocate memory for the new cache entry. */
if (frclen >= frccap) {
frccap += 16;
frc = xrealloc(frc, frccap * sizeof(Fontcache));
}
frc[frclen].font = XftFontOpenPattern(xw.dpy,
fontpattern);
if (!frc[frclen].font)
die("XftFontOpenPattern failed seeking fallback font: %s\n",
strerror(errno));
frc[frclen].flags = frcflags;
frc[frclen].unicodep = rune;
glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
f = frclen;
frclen++;
FcPatternDestroy(fcpattern);
FcCharSetDestroy(fccharset);
}
specs[numspecs].font = frc[f].font;
specs[numspecs].glyph = glyphidx;
specs[numspecs].x = (short)xp;
specs[numspecs].y = (short)yp;
xp += runewidth;
numspecs++;
}
#if LIGATURES_PATCH
/* Harfbuzz transformation for ligatures. */
hbtransform(specs, glyphs, len, x, y);
#endif // LIGATURES_PATCH
return numspecs;
}
void
#if WIDE_GLYPHS_PATCH
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
#else
xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
#endif // WIDE_GLYPHS_PATCH
{
int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
#if ANYSIZE_PATCH
int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch;
#else
int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch;
#endif // ANYSIZE_PATCH
int width = charlen * win.cw;
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
XRectangle r;
/* Fallback on color display for attributes not supported by the font */
if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
if (dc.ibfont.badslant || dc.ibfont.badweight)
base.fg = defaultattr;
} else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) ||
(base.mode & ATTR_BOLD && dc.bfont.badweight)) {
base.fg = defaultattr;
}
if (IS_TRUECOL(base.fg)) {
colfg.alpha = 0xffff;
colfg.red = TRUERED(base.fg);
colfg.green = TRUEGREEN(base.fg);
colfg.blue = TRUEBLUE(base.fg);
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
fg = &truefg;
} else {
fg = &dc.col[base.fg];
}
if (IS_TRUECOL(base.bg)) {
colbg.alpha = 0xffff;
colbg.green = TRUEGREEN(base.bg);
colbg.red = TRUERED(base.bg);
colbg.blue = TRUEBLUE(base.bg);
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
bg = &truebg;
} else {
bg = &dc.col[base.bg];
}
#if !BOLD_IS_NOT_BRIGHT_PATCH
/* Change basic system colors [0-7] to bright system colors [8-15] */
if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7))
fg = &dc.col[base.fg + 8];
#endif // BOLD_IS_NOT_BRIGHT_PATCH
if (IS_SET(MODE_REVERSE)) {
if (fg == &dc.col[defaultfg]) {
fg = &dc.col[defaultbg];
} else {
colfg.red = ~fg->color.red;
colfg.green = ~fg->color.green;
colfg.blue = ~fg->color.blue;
colfg.alpha = fg->color.alpha;
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
&revfg);
fg = &revfg;
}
if (bg == &dc.col[defaultbg]) {
bg = &dc.col[defaultfg];
} else {
colbg.red = ~bg->color.red;
colbg.green = ~bg->color.green;
colbg.blue = ~bg->color.blue;
colbg.alpha = bg->color.alpha;
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
&revbg);
bg = &revbg;
}
}
if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) {
colfg.red = fg->color.red / 2;
colfg.green = fg->color.green / 2;
colfg.blue = fg->color.blue / 2;
colfg.alpha = fg->color.alpha;
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
fg = &revfg;
}
if (base.mode & ATTR_REVERSE) {
#if SPOILER_PATCH
if (bg == fg) {
bg = &dc.col[defaultfg];
fg = &dc.col[defaultbg];
} else {
temp = fg;
fg = bg;
bg = temp;
}
#else
temp = fg;
fg = bg;
bg = temp;
#endif // SPOILER_PATCH
}
if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK)
fg = bg;
if (base.mode & ATTR_INVISIBLE)
fg = bg;
#if INVERT_PATCH
if (invertcolors) {
revfg = invertedcolor(fg);
revbg = invertedcolor(bg);
fg = &revfg;
bg = &revbg;
}
#endif // INVERT_PATCH
#if ALPHA_PATCH && ALPHA_GRADIENT_PATCH
// gradient
bg->color.alpha = grad_alpha * 0xffff * (win.h - y*win.ch) / win.h + stat_alpha * 0xffff;
// uncomment to invert the gradient
// bg->color.alpha = grad_alpha * 0xffff * (y*win.ch) / win.h + stat_alpha * 0xffff;
#endif // ALPHA_PATCH | ALPHA_GRADIENT_PATCH
#if WIDE_GLYPHS_PATCH
if (dmode & DRAW_BG) {
#endif // WIDE_GLYPHS_PATCH
/* Intelligent cleaning up of the borders. */
#if ANYSIZE_PATCH
if (x == 0) {
xclear(0, (y == 0)? 0 : winy, win.vborderpx,
winy + win.ch +
((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
}
if (winx + width >= win.hborderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
xclear(winx, 0, winx + width, win.hborderpx);
if (winy + win.ch >= win.vborderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
#else
if (x == 0) {
xclear(0, (y == 0)? 0 : winy, borderpx,
winy + win.ch +
((winy + win.ch >= borderpx + win.th)? win.h : 0));
}
if (winx + width >= borderpx + win.tw) {
xclear(winx + width, (y == 0)? 0 : winy, win.w,
((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
}
if (y == 0)
xclear(winx, 0, winx + width, borderpx);
if (winy + win.ch >= borderpx + win.th)
xclear(winx, winy + win.ch, winx + width, win.h);
#endif // ANYSIZE_PATCH
/* Clean up the region we want to draw to. */
XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
#if WIDE_GLYPHS_PATCH
}
#endif // WIDE_GLYPHS_PATCH
/* Set the clip region because Xft is sometimes dirty. */
r.x = 0;
r.y = 0;
r.height = win.ch;
r.width = width;
XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
#if WIDE_GLYPHS_PATCH
if (dmode & DRAW_FG) {
#endif // WIDE_GLYPHS_PATCH
#if BOXDRAW_PATCH
if (base.mode & ATTR_BOXDRAW) {
drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
} else {
/* Render the glyphs. */
XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
}
#else
/* Render the glyphs. */
XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
#endif // BOXDRAW_PATCH
/* Render underline and strikethrough. */
if (base.mode & ATTR_UNDERLINE) {
#if UNDERCURL_PATCH
// Underline Color
int wlw = 1; // Wave Line Width
int linecolor;
if ((base.ucolor[0] >= 0) &&
!(base.mode & ATTR_BLINK && win.mode & MODE_BLINK) &&
!(base.mode & ATTR_INVISIBLE)
) {
// Special color for underline
// Index
if (base.ucolor[1] < 0) {
linecolor = dc.col[base.ucolor[0]].pixel;
}
// RGB
else {
XColor lcolor;
lcolor.red = base.ucolor[0] * 257;
lcolor.green = base.ucolor[1] * 257;
lcolor.blue = base.ucolor[2] * 257;
lcolor.flags = DoRed | DoGreen | DoBlue;
XAllocColor(xw.dpy, xw.cmap, &lcolor);
linecolor = lcolor.pixel;
}
} else {
// Foreground color for underline
linecolor = fg->pixel;
}
XGCValues ugcv = {
.foreground = linecolor,
.line_width = wlw,
.line_style = LineSolid,
.cap_style = CapNotLast
};
GC ugc = XCreateGC(xw.dpy, XftDrawDrawable(xw.draw),
GCForeground | GCLineWidth | GCLineStyle | GCCapStyle,
&ugcv);
// Underline Style
if (base.ustyle != 3) {
//XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1);
XFillRectangle(xw.dpy, XftDrawDrawable(xw.draw), ugc, winx,
winy + dc.font.ascent + 1, width, wlw);
} else if (base.ustyle == 3) {
int ww = win.cw;//width;
int wh = dc.font.descent - wlw/2 - 1;//r.height/7;
int wx = winx;
int wy = winy + win.ch - dc.font.descent;
#if VERTCENTER_PATCH
wy += win.cyo;
#endif // VERTCENTER_PATCH
// Draw waves
int narcs = charlen * 2 + 1;
XArc *arcs = xmalloc(sizeof(XArc) * narcs);
int i = 0;
for (i = 0; i < charlen-1; i++) {
arcs[i*2] = (XArc) {
.x = wx + win.cw * i + ww / 4,
.y = wy,
.width = win.cw / 2,
.height = wh,
.angle1 = 0,
.angle2 = 180 * 64
};
arcs[i*2+1] = (XArc) {
.x = wx + win.cw * i + ww * 0.75,
.y = wy,
.width = win.cw/2,
.height = wh,
.angle1 = 180 * 64,
.angle2 = 180 * 64
};
}
// Last wave
arcs[i*2] = (XArc) {wx + ww * i + ww / 4, wy, ww / 2, wh,
0, 180 * 64 };
// Last wave tail
arcs[i*2+1] = (XArc) {wx + ww * i + ww * 0.75, wy, ceil(ww / 2.),
wh, 180 * 64, 90 * 64};
// First wave tail
i++;
arcs[i*2] = (XArc) {wx - ww/4 - 1, wy, ceil(ww / 2.), wh, 270 * 64,
90 * 64 };
XDrawArcs(xw.dpy, XftDrawDrawable(xw.draw), ugc, arcs, narcs);
free(arcs);
}
XFreeGC(xw.dpy, ugc);
#elif VERTCENTER_PATCH
XftDrawRect(xw.draw, fg, winx, winy + win.cyo + dc.font.ascent + 1,
width, 1);
#else
XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
width, 1);
#endif
}
if (base.mode & ATTR_STRUCK) {
#if VERTCENTER_PATCH
XftDrawRect(xw.draw, fg, winx, winy + win.cyo + 2 * dc.font.ascent / 3,
width, 1);
#else
XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
width, 1);
#endif // VERTCENTER_PATCH
}
#if WIDE_GLYPHS_PATCH
}
#endif // WIDE_GLYPHS_PATCH
/* Reset clip to none. */
XftDrawSetClip(xw.draw, 0);
}
void
xdrawglyph(Glyph g, int x, int y)
{
int numspecs;
XftGlyphFontSpec spec;
numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
#if WIDE_GLYPHS_PATCH
xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
#else
xdrawglyphfontspecs(&spec, g, numspecs, x, y);
#endif // WIDE_GLYPHS_PATCH
}
void
#if LIGATURES_PATCH
xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len)
#else
xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
#endif // LIGATURES_PATCH
{
Color drawcol;
#if DYNAMIC_CURSOR_COLOR_PATCH
XRenderColor colbg;
#endif // DYNAMIC_CURSOR_COLOR_PATCH
/* remove the old cursor */
if (selected(ox, oy))
og.mode ^= ATTR_REVERSE;
#if LIGATURES_PATCH
/* Redraw the line where cursor was previously.
* It will restore the ligatures broken by the cursor. */
xdrawline(line, 0, oy, len);
#else
xdrawglyph(og, ox, oy);
#endif // LIGATURES_PATCH
if (IS_SET(MODE_HIDE))
return;
/*
* Select the right color for the right mode.
*/
#if BOXDRAW_PATCH
g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW;
#else
g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
#endif // BOXDRAW_PATCH
if (IS_SET(MODE_REVERSE)) {
g.mode |= ATTR_REVERSE;
g.bg = defaultfg;
if (selected(cx, cy)) {
drawcol = dc.col[defaultcs];
g.fg = defaultrcs;
} else {
drawcol = dc.col[defaultrcs];
g.fg = defaultcs;
}
} else {
if (selected(cx, cy)) {
g.fg = defaultfg;
g.bg = defaultrcs;
} else {
#if DYNAMIC_CURSOR_COLOR_PATCH
g.bg = g.fg;
g.fg = defaultbg;
#else
g.fg = defaultbg;
g.bg = defaultcs;
#endif // DYNAMIC_CURSOR_COLOR_PATCH
}
#if DYNAMIC_CURSOR_COLOR_PATCH
if (IS_TRUECOL(g.bg)) {
colbg.alpha = 0xffff;
colbg.red = TRUERED(g.bg);
colbg.green = TRUEGREEN(g.bg);
colbg.blue = TRUEBLUE(g.bg);
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &drawcol);
} else
drawcol = dc.col[g.bg];
#else
drawcol = dc.col[g.bg];
#endif // DYNAMIC_CURSOR_COLOR_PATCH
}
/* draw the new one */
if (IS_SET(MODE_FOCUSED)) {
switch (win.cursor) {
#if !BLINKING_CURSOR_PATCH
case 7: /* st extension */
g.u = 0x2603; /* snowman (U+2603) */
/* FALLTHROUGH */
#endif // BLINKING_CURSOR_PATCH
case 0: /* Blinking block */
case 1: /* Blinking block (default) */
#if BLINKING_CURSOR_PATCH
if (IS_SET(MODE_BLINK))
break;
/* FALLTHROUGH */
#endif // BLINKING_CURSOR_PATCH
case 2: /* Steady block */
xdrawglyph(g, cx, cy);
break;
case 3: /* Blinking underline */
#if BLINKING_CURSOR_PATCH
if (IS_SET(MODE_BLINK))
break;
/* FALLTHROUGH */
#endif // BLINKING_CURSOR_PATCH
case 4: /* Steady underline */
#if ANYSIZE_PATCH
XftDrawRect(xw.draw, &drawcol,
win.hborderpx + cx * win.cw,
win.vborderpx + (cy + 1) * win.ch - \
cursorthickness,
win.cw, cursorthickness);
#else
XftDrawRect(xw.draw, &drawcol,
borderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - \
cursorthickness,
win.cw, cursorthickness);
#endif // ANYSIZE_PATCH
break;
case 5: /* Blinking bar */
#if BLINKING_CURSOR_PATCH
if (IS_SET(MODE_BLINK))
break;
/* FALLTHROUGH */
#endif // BLINKING_CURSOR_PATCH
case 6: /* Steady bar */
XftDrawRect(xw.draw, &drawcol,
#if ANYSIZE_PATCH
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
#else
borderpx + cx * win.cw,
borderpx + cy * win.ch,
#endif // ANYSIZE_PATCH
cursorthickness, win.ch);
break;
#if BLINKING_CURSOR_PATCH
case 7: /* Blinking st cursor */
if (IS_SET(MODE_BLINK))
break;
/* FALLTHROUGH */
case 8: /* Steady st cursor */
g.u = stcursor;
xdrawglyph(g, cx, cy);
break;
#endif // BLINKING_CURSOR_PATCH
}
} else {
XftDrawRect(xw.draw, &drawcol,
#if ANYSIZE_PATCH
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
#else
borderpx + cx * win.cw,
borderpx + cy * win.ch,
#endif // ANYSIZE_PATCH
win.cw - 1, 1);
XftDrawRect(xw.draw, &drawcol,
#if ANYSIZE_PATCH
win.hborderpx + cx * win.cw,
win.vborderpx + cy * win.ch,
#else
borderpx + cx * win.cw,
borderpx + cy * win.ch,
#endif // ANYSIZE_PATCH
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
#if ANYSIZE_PATCH
win.hborderpx + (cx + 1) * win.cw - 1,
win.vborderpx + cy * win.ch,
#else
borderpx + (cx + 1) * win.cw - 1,
borderpx + cy * win.ch,
#endif // ANYSIZE_PATCH
1, win.ch - 1);
XftDrawRect(xw.draw, &drawcol,
#if ANYSIZE_PATCH
win.hborderpx + cx * win.cw,
win.vborderpx + (cy + 1) * win.ch - 1,
#else
borderpx + cx * win.cw,
borderpx + (cy + 1) * win.ch - 1,
#endif // ANYSIZE_PATCH
win.cw, 1);
}
}
void
xsetenv(void)
{
char buf[sizeof(long) * 8 + 1];
snprintf(buf, sizeof(buf), "%lu", xw.win);
setenv("WINDOWID", buf, 1);
}
void
xsettitle(char *p)
{
XTextProperty prop;
DEFAULT(p, opt_title);
Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
&prop);
XSetWMName(xw.dpy, xw.win, &prop);
XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
XFree(prop.value);
}
int
xstartdraw(void)
{
#if W3M_PATCH
if (IS_SET(MODE_VISIBLE))
XCopyArea(xw.dpy, xw.win, xw.buf, dc.gc, 0, 0, win.w, win.h, 0, 0);
#endif // W3M_PATCH
return IS_SET(MODE_VISIBLE);
}
void
xdrawline(Line line, int x1, int y1, int x2)
{
int i, x, ox, numspecs;
#if WIDE_GLYPHS_PATCH
int numspecs_cached;
#endif // WIDE_GLYPHS_PATCH
Glyph base, new;
#if WIDE_GLYPHS_PATCH
XftGlyphFontSpec *specs;
numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
/* Draw line in 2 passes: background and foreground. This way wide glyphs
won't get truncated (#223) */
for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
specs = xw.specbuf;
numspecs = numspecs_cached;
i = ox = 0;
for (x = x1; x < x2 && i < numspecs; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
new.mode ^= ATTR_REVERSE;
if (i > 0 && ATTRCMP(base, new)) {
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
specs += i;
numspecs -= i;
i = 0;
}
if (i == 0) {
ox = x;
base = new;
}
i++;
}
if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
}
#else
XftGlyphFontSpec *specs = xw.specbuf;
numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
i = ox = 0;
for (x = x1; x < x2 && i < numspecs; x++) {
new = line[x];
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
new.mode ^= ATTR_REVERSE;
if (i > 0 && ATTRCMP(base, new)) {
xdrawglyphfontspecs(specs, base, i, ox, y1);
specs += i;
numspecs -= i;
i = 0;
}
if (i == 0) {
ox = x;
base = new;
}
i++;
}
if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y1);
#endif // WIDE_GLYPHS_PATCH
}
void
xfinishdraw(void)
{
#if SIXEL_PATCH
ImageList *im;
int x, y;
int n = 0;
int nlimit = 256;
XRectangle *rects = NULL;
XGCValues gcvalues;
GC gc;
#endif // SIXEL_PATCH
#if !SINGLE_DRAWABLE_BUFFER_PATCH
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
win.h, 0, 0);
#endif // SINGLE_DRAWABLE_BUFFER_PATCH
XSetForeground(xw.dpy, dc.gc,
dc.col[IS_SET(MODE_REVERSE)?
defaultfg : defaultbg].pixel);
#if SIXEL_PATCH
for (im = term.images; im; im = im->next) {
if (term.images == NULL) {
/* last image was deleted, bail out */
break;
}
if (im->should_delete) {
delete_image(im);
/* prevent the next iteration from accessing an invalid image pointer */
im = term.images;
if (im == NULL) {
break;
} else {
continue;
}
}
if (!im->pixmap) {
im->pixmap = (void *)XCreatePixmap(xw.dpy, xw.win, im->width, im->height,
#if ALPHA_PATCH
xw.depth
#else
DefaultDepth(xw.dpy, xw.scr)
#endif // ALPHA_PATCH
);
XImage ximage = {
.format = ZPixmap,
.data = (char *)im->pixels,
.width = im->width,
.height = im->height,
.xoffset = 0,
.byte_order = LSBFirst,
.bitmap_bit_order = MSBFirst,
.bits_per_pixel = 32,
.bytes_per_line = im->width * 4,
.bitmap_unit = 32,
.bitmap_pad = 32,
#if ALPHA_PATCH
.depth = xw.depth
#else
.depth = 24
#endif // ALPHA_PATCH
};
XPutImage(xw.dpy, (Drawable)im->pixmap, dc.gc, &ximage, 0, 0, 0, 0, im->width, im->height);
free(im->pixels);
im->pixels = NULL;
}
n = 0;
memset(&gcvalues, 0, sizeof(gcvalues));
gc = XCreateGC(xw.dpy, xw.win, 0, &gcvalues);
XCopyArea(xw.dpy, (Drawable)im->pixmap, xw.buf, gc, 0, 0, im->width, im->height, borderpx + im->x * win.cw, borderpx + im->y * win.ch);
XFreeGC(xw.dpy, gc);
}
free(rects);
drawregion(0, 0, term.col, term.row);
#endif // SIXEL_PATCH
}
void
xximspot(int x, int y)
{
if (xw.ime.xic == NULL)
return;
xw.ime.spot.x = borderpx + x * win.cw;
xw.ime.spot.y = borderpx + (y + 1) * win.ch;
XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
}
void
expose(XEvent *ev)
{
redraw();
}
void
visibility(XEvent *ev)
{
XVisibilityEvent *e = &ev->xvisibility;
MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE);
}
void
unmap(XEvent *ev)
{
#if ST_EMBEDDER_PATCH
if (embed == ev->xunmap.window) {
embed = 0;
XRaiseWindow(xw.dpy, xw.win);
XSetInputFocus(xw.dpy, xw.win, RevertToParent, CurrentTime);
}
#endif // ST_EMBEDDER_PATCH
win.mode &= ~MODE_VISIBLE;
}
void
xsetpointermotion(int set)
{
#if HIDECURSOR_PATCH
if (!set && !xw.pointerisvisible)
return;
#endif // HIDECURSOR_PATCH
MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
}
void
xsetmode(int set, unsigned int flags)
{
int mode = win.mode;
MODBIT(win.mode, set, flags);
if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE))
redraw();
}
int
xsetcursor(int cursor)
{
#if BLINKING_CURSOR_PATCH
if (!BETWEEN(cursor, 0, 8)) /* 7-8: st extensions */
#else
if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */
#endif // BLINKING_CURSOR_PATCH
return 1;
win.cursor = cursor;
#if BLINKING_CURSOR_PATCH
cursorblinks = win.cursor == 0 || win.cursor == 1 ||
win.cursor == 3 || win.cursor == 5 ||
win.cursor == 7;
#endif // BLINKING_CURSOR_PATCH
return 0;
}
void
xseturgency(int add)
{
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
MODBIT(h->flags, add, XUrgencyHint);
XSetWMHints(xw.dpy, xw.win, h);
XFree(h);
}
void
xbell(void)
{
if (!(IS_SET(MODE_FOCUSED)))
xseturgency(1);
if (bellvolume)
XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
#if VISUALBELL_1_PATCH
if (!bellon) /* turn visual bell on */
bellon = 1;
#endif // VISUALBELL_1_PATCH
}
void
focus(XEvent *ev)
{
XFocusChangeEvent *e = &ev->xfocus;
#if ST_EMBEDDER_PATCH
if (embed && ev->type == FocusIn) {
XRaiseWindow(xw.dpy, embed);
XSetInputFocus(xw.dpy, embed, RevertToParent, CurrentTime);
sendxembed(XEMBED_FOCUS_IN, XEMBED_FOCUS_CURRENT, 0, 0);
sendxembed(XEMBED_WINDOW_ACTIVATE, 0, 0, 0);
}
#endif // ST_EMBEDDER_PATCH
if (e->mode == NotifyGrab)
return;
if (ev->type == FocusIn) {
if (xw.ime.xic)
XSetICFocus(xw.ime.xic);
win.mode |= MODE_FOCUSED;
xseturgency(0);
if (IS_SET(MODE_FOCUS))
ttywrite("\033[I", 3, 0);
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
if (!focused) {
focused = 1;
xloadcols();
redraw();
}
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
} else {
if (xw.ime.xic)
XUnsetICFocus(xw.ime.xic);
win.mode &= ~MODE_FOCUSED;
if (IS_SET(MODE_FOCUS))
ttywrite("\033[O", 3, 0);
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
if (focused) {
focused = 0;
xloadcols();
redraw();
}
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
}
}
int
match(uint mask, uint state)
{
return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
}
char*
kmap(KeySym k, uint state)
{
Key *kp;
int i;
/* Check for mapped keys out of X11 function keys. */
for (i = 0; i < LEN(mappedkeys); i++) {
if (mappedkeys[i] == k)
break;
}
if (i == LEN(mappedkeys)) {
if ((k & 0xFFFF) < 0xFD00)
return NULL;
}
for (kp = key; kp < key + LEN(key); kp++) {
if (kp->k != k)
continue;
if (!match(kp->mask, state))
continue;
if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
continue;
if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2)
continue;
if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
continue;
return kp->s;
}
return NULL;
}
void
kpress(XEvent *ev)
{
XKeyEvent *e = &ev->xkey;
KeySym ksym;
char buf[64], *customkey;
int len;
Rune c;
Status status;
Shortcut *bp;
#if HIDECURSOR_PATCH
if (xw.pointerisvisible) {
XDefineCursor(xw.dpy, xw.win, xw.bpointer);
xsetpointermotion(1);
xw.pointerisvisible = 0;
}
#endif // HIDECURSOR_PATCH
if (IS_SET(MODE_KBDLOCK))
return;
if (xw.ime.xic)
len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
else
len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
#if KEYBOARDSELECT_PATCH
if ( IS_SET(MODE_KBDSELECT) ) {
if ( match(XK_NO_MOD, e->state) ||
(XK_Shift_L | XK_Shift_R) & e->state )
win.mode ^= trt_kbdselect(ksym, buf, len);
return;
}
#endif // KEYBOARDSELECT_PATCH
/* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) {
bp->func(&(bp->arg));
return;
}
}
/* 2. custom keys from config.h */
if ((customkey = kmap(ksym, e->state))) {
ttywrite(customkey, strlen(customkey), 1);
return;
}
/* 3. composed string from input method */
if (len == 0)
return;
if (len == 1 && e->state & Mod1Mask) {
if (IS_SET(MODE_8BIT)) {
if (*buf < 0177) {
c = *buf | 0x80;
len = utf8encode(c, buf);
}
} else {
buf[1] = buf[0];
buf[0] = '\033';
len = 2;
}
}
ttywrite(buf, len, 1);
}
void
cmessage(XEvent *e)
{
/*
* See xembed specs
* http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
*/
if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
win.mode |= MODE_FOCUSED;
xseturgency(0);
} else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
win.mode &= ~MODE_FOCUSED;
}
} else if (e->xclient.data.l[0] == xw.wmdeletewin) {
ttyhangup();
exit(0);
}
}
void
resize(XEvent *e)
{
#if ST_EMBEDDER_PATCH
XWindowChanges wc;
#endif // ST_EMBEDDER_PATCH
if (e->xconfigure.width == win.w && e->xconfigure.height == win.h)
return;
#if ST_EMBEDDER_PATCH
if (embed) {
wc.width = e->xconfigure.width;
wc.height = e->xconfigure.height;
XConfigureWindow(xw.dpy, embed, CWWidth | CWHeight, &wc);
}
#endif // ST_EMBEDDER_PATCH
cresize(e->xconfigure.width, e->xconfigure.height);
}
void
run(void)
{
XEvent ev;
int w = win.w, h = win.h;
fd_set rfd;
int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing;
struct timespec seltv, *tv, now, lastblink, trigger;
double timeout;
/* Waiting for window mapping */
do {
XNextEvent(xw.dpy, &ev);
/*
* This XFilterEvent call is required because of XOpenIM. It
* does filter out the key event and some client message for
* the input method too.
*/
if (XFilterEvent(&ev, None))
continue;
if (ev.type == ConfigureNotify) {
w = ev.xconfigure.width;
h = ev.xconfigure.height;
}
} while (ev.type != MapNotify);
ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd);
cresize(w, h);
for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) {
FD_ZERO(&rfd);
FD_SET(ttyfd, &rfd);
FD_SET(xfd, &rfd);
#if SYNC_PATCH
if (XPending(xw.dpy) || ttyread_pending())
#else
if (XPending(xw.dpy))
#endif // SYNC_PATCH
timeout = 0; /* existing events might not set xfd */
seltv.tv_sec = timeout / 1E3;
seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec);
tv = timeout >= 0 ? &seltv : NULL;
if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
if (errno == EINTR)
continue;
die("select failed: %s\n", strerror(errno));
}
clock_gettime(CLOCK_MONOTONIC, &now);
#if SYNC_PATCH
int ttyin = FD_ISSET(ttyfd, &rfd) || ttyread_pending();
if (ttyin)
ttyread();
#else
if (FD_ISSET(ttyfd, &rfd))
ttyread();
#endif // SYNC_PATCH
xev = 0;
while (XPending(xw.dpy)) {
xev = 1;
XNextEvent(xw.dpy, &ev);
if (XFilterEvent(&ev, None))
continue;
if (handler[ev.type])
(handler[ev.type])(&ev);
}
/*
* To reduce flicker and tearing, when new content or event
* triggers drawing, we first wait a bit to ensure we got
* everything, and if nothing new arrives - we draw.
* We start with trying to wait minlatency ms. If more content
* arrives sooner, we retry with shorter and shorter periods,
* and eventually draw even without idle after maxlatency ms.
* Typically this results in low latency while interacting,
* maximum latency intervals during `cat huge.txt`, and perfect
* sync with periodic updates from animations/key-repeats/etc.
*/
#if SYNC_PATCH
if (ttyin || xev)
#else
if (FD_ISSET(ttyfd, &rfd) || xev)
#endif // SYNC_PATCH
{
if (!drawing) {
trigger = now;
#if BLINKING_CURSOR_PATCH
if (IS_SET(MODE_BLINK)) {
win.mode ^= MODE_BLINK;
}
lastblink = now;
#endif // BLINKING_CURSOR_PATCH
drawing = 1;
}
timeout = (maxlatency - TIMEDIFF(now, trigger)) \
/ maxlatency * minlatency;
if (timeout > 0)
continue; /* we have time, try to find idle */
}
#if SYNC_PATCH
if (tinsync(su_timeout)) {
/*
* on synchronized-update draw-suspension: don't reset
* drawing so that we draw ASAP once we can (just after
* ESU). it won't be too soon because we already can
* draw now but we skip. we set timeout > 0 to draw on
* SU-timeout even without new content.
*/
timeout = minlatency;
continue;
}
#endif // SYNC_PATCH
/* idle detected or maxlatency exhausted -> draw */
timeout = -1;
#if BLINKING_CURSOR_PATCH
if (blinktimeout && (cursorblinks || tattrset(ATTR_BLINK)))
#else
if (blinktimeout && tattrset(ATTR_BLINK))
#endif // BLINKING_CURSOR_PATCH
{
timeout = blinktimeout - TIMEDIFF(now, lastblink);
if (timeout <= 0) {
if (-timeout > blinktimeout) /* start visible */
win.mode |= MODE_BLINK;
win.mode ^= MODE_BLINK;
tsetdirtattr(ATTR_BLINK);
lastblink = now;
timeout = blinktimeout;
}
}
#if ANYSIZE_NOBAR_PATCH
/* Refresh before drawing */
cresize(0, 0);
redraw();
xhints();
#endif // ANYSIZE_NOBAR_PATCH
#if VISUALBELL_1_PATCH
if (bellon) {
bellon++;
bellon %= 3;
MODBIT(win.mode, !IS_SET(MODE_REVERSE), MODE_REVERSE);
redraw();
}
else
draw();
#else
draw();
#endif // VISUALBELL_1_PATCH
XFlush(xw.dpy);
drawing = 0;
}
}
void
usage(void)
{
die("usage: %s [-aiv] [-c class]"
#if WORKINGDIR_PATCH
" [-d path]"
#endif // WORKINGDIR_PATCH
" [-f font] [-g geometry]"
" [-n name] [-o file]\n"
" [-T title] [-t title] [-w windowid]"
" [[-e] command [args ...]]\n"
" %s [-aiv] [-c class]"
#if WORKINGDIR_PATCH
" [-d path]"
#endif // WORKINGDIR_PATCH
" [-f font] [-g geometry]"
" [-n name] [-o file]\n"
" [-T title] [-t title] [-w windowid] -l line"
" [stty_args ...]\n", argv0, argv0);
}
int
main(int argc, char *argv[])
{
xw.l = xw.t = 0;
xw.isfixed = False;
#if BLINKING_CURSOR_PATCH
xsetcursor(cursorstyle);
#else
xsetcursor(cursorshape);
#endif // BLINKING_CURSOR_PATCH
ARGBEGIN {
case 'a':
allowaltscreen = 0;
break;
#if ALPHA_PATCH
case 'A':
opt_alpha = EARGF(usage());
break;
#endif // ALPHA_PATCH
case 'c':
opt_class = EARGF(usage());
break;
#if WORKINGDIR_PATCH
case 'd':
opt_dir = EARGF(usage());
break;
#endif // WORKINGDIR_PATCH
case 'e':
if (argc > 0)
--argc, ++argv;
goto run;
case 'f':
opt_font = EARGF(usage());
break;
case 'g':
xw.gm = XParseGeometry(EARGF(usage()),
&xw.l, &xw.t, &cols, &rows);
break;
case 'i':
xw.isfixed = 1;
break;
case 'o':
opt_io = EARGF(usage());
break;
case 'l':
opt_line = EARGF(usage());
break;
case 'n':
opt_name = EARGF(usage());
break;
case 't':
case 'T':
opt_title = EARGF(usage());
break;
case 'w':
opt_embed = EARGF(usage());
break;
case 'v':
die("%s " VERSION "\n", argv0);
break;
default:
usage();
} ARGEND;
run:
if (argc > 0) /* eat all remaining arguments */
opt_cmd = argv;
if (!opt_title)
opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0];
setlocale(LC_CTYPE, "");
XSetLocaleModifiers("");
#if XRESOURCES_RELOAD_PATCH && XRESOURCES_PATCH
reload_config(-1);
#elif XRESOURCES_PATCH
if (!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
config_init();
#endif // XRESOURCES_RELOAD_PATCH
cols = MAX(cols, 1);
rows = MAX(rows, 1);
#if ALPHA_PATCH && ALPHA_FOCUS_HIGHLIGHT_PATCH
defaultbg = MAX(LEN(colorname), 256);
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH
tnew(cols, rows);
xinit(cols, rows);
xsetenv();
selinit();
#if WORKINGDIR_PATCH
if (opt_dir && chdir(opt_dir))
die("Can't change to working directory %s\n", opt_dir);
#endif // WORKINGDIR_PATCH
run();
return 0;
}
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