/* See LICENSE for license details. */

#include <errno.h>

#include <math.h>

#include <limits.h>

#include <locale.h>

#include <signal.h>

#include <stdio.h>

#include <stdlib.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>

#include <X11/Xresource.h>

char *argv0;

#include "arg.h"

#include "st.h"

#include "win.h"

#include "graphics.h"

#include "hb.h"

typedef struct {

KeySym k;

uint mask;

char *s;

/* three-valued logic variables: 0 indifferent, 1 on, -1 off */

signed char appkey; /* application keypad */

signed char appcursor; /* application cursor */

} Key;

/* X modifiers */

#define XK_ANY_MOD UINT_MAX

#define XK_NO_MOD 0

#define XK_SWITCH_MOD (1<<13|1<<14)

/* 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 zoom(const Arg *);

static void zoomabs(const Arg *);

static void zoomreset(const Arg *);

static void ttysend(const Arg *);

static void changealpha(const Arg *);

void kscrollup(const Arg *);

void kscrolldown(const Arg *);

static void previewimage(const Arg *);

static void showimageinfo(const Arg *);

static void togglegrdebug(const Arg *);

static void dumpgrstate(const Arg *);

static void unloadimages(const Arg *);

static void toggleimages(const Arg *);

/* 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)

typedef XftDraw *Draw;

typedef XftColor Color;

typedef XftGlyphFontSpec GlyphFontSpec;

/* Purely graphic info */

typedef struct {

int tw, th; /* tty width and height */

int w, h; /* window width and height */

int hborderpx, vborderpx;

int ch; /* char height */

int cw; /* char width */

int mode; /* window state/mode flags */

int cursor; /* cursor style */

} TermWindow;

typedef struct {

Display *dpy;

Colormap cmap;

Window win;

Drawable buf;

GlyphFontSpec *specbuf; /* font spec buffer used for rendering */

Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;

Atom XdndTypeList, XdndSelection, XdndEnter, XdndPosition, XdndStatus,

XdndLeave, XdndDrop, XdndFinished, XdndActionCopy, XdndActionMove,

XdndActionLink, XdndActionAsk, XdndActionPrivate, XtextUriList,

XtextPlain, XdndAware;

int64_t XdndSourceWin, XdndSourceVersion;

int32_t XdndSourceFormat;

struct {

XIM xim;

XIC xic;

XPoint spot;

XVaNestedList spotlist;

} ime;

Draw draw;

Visual *vis;

XSetWindowAttributes attrs;

int scr;

int isfixed; /* is fixed geometry? */

int depth; /* bit depth */

int l, t; /* left and top offset */

int gm; /* geometry mask */

} XWindow;

typedef struct {

Atom xtarget;

char *primary, *clipboard;

struct timespec tclick1;

struct timespec tclick2;

} XSelection;

/* Font structure */

#define Font Font_

typedef struct {

int height;

int width;

int ascent;

int descent;

int badslant;

int badweight;

short lbearing;

short rbearing;

XftFont *match;

FcFontSet *set;

FcPattern *pattern;

} Font;

/* Drawing Context */

typedef struct {

Color *col;

size_t collen;

Font font, bfont, ifont, ibfont;

GC gc;

} DC;

static inline ushort sixd_to_16bit(int);

static void xresetfontsettings(ushort mode, Font **font, int *frcflags);

static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);

static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int, int);

static void xdrawglyph(Glyph, int, int);

static void xdrawimages(Glyph, Line, int x1, int y1, int x2);

static void xdrawoneimagecell(Glyph, int x, int y);

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(const char *, double);

static int xloadsparefont(FcPattern *, int);

static void xloadsparefonts(void);

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 xdndenter(XEvent *);

static void xdndpos(XEvent *);

static void xdnddrop(XEvent *);

static void resize(XEvent *);

static void focus(XEvent *);

static uint buttonmask(uint);

static int mouseaction(XEvent *, uint);

static void brelease(XEvent *);

static void bpress(XEvent *);

static void bmotion(XEvent *);

static void propnotify(XEvent *);

static void selnotify(XEvent *);

static void xdndsel(XEvent *);

static void xdndpastedata(char *);

static void selclear_(XEvent *);

static void selrequest(XEvent *);

static void setsel(char *, Time);

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,

};

/* Globals */

static DC dc;

static XWindow xw;

static XSelection xsel;

static TermWindow win;

const char XdndVersion = 5;

static unsigned int mouse_col = 0, mouse_row = 0;

/* 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;

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;

static uint buttons; /* bit field of pressed buttons */

static int cursorblinks = 0;

static Cursor cursor;

static XColor xmousefg, xmousebg;

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

selpaste(const Arg *dummy)

{

XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,

xw.win, CurrentTime);

}

void

numlock(const Arg *dummy)

{

win.mode ^= MODE_NUMLOCK;

}

void

zoom(const Arg *arg)

{

Arg larg;

larg.f = usedfontsize + arg->f;

zoomabs(&larg);

}

void

zoomabs(const Arg *arg)

{

xunloadfonts();

xloadfonts(usedfont, arg->f);

xloadsparefonts();

cresize(0, 0);

redraw();

xhints();

}

void

zoomreset(const Arg *arg)

{

Arg larg;

if (defaultfontsize > 0) {

larg.f = defaultfontsize;

zoomabs(&larg);

}

}

void

ttysend(const Arg *arg)

{

ttywrite(arg->s, strlen(arg->s), 1);

}

void

previewimage(const Arg *arg)

{

Glyph g = getglyphat(mouse_col, mouse_row);

if (g.mode & ATTR_IMAGE) {

uint32_t image_id = tgetimgid(&g);

fprintf(stderr, "Clicked on placeholder %u/%u, x=%d, y=%d\n",

image_id, tgetimgplacementid(&g), tgetimgcol(&g),

tgetimgrow(&g));

gr_preview_image(image_id, arg->s);

}

}

void

showimageinfo(const Arg *arg)

{

Glyph g = getglyphat(mouse_col, mouse_row);

if (g.mode & ATTR_IMAGE) {

uint32_t image_id = tgetimgid(&g);

fprintf(stderr, "Clicked on placeholder %u/%u, x=%d, y=%d\n",

image_id, tgetimgplacementid(&g), tgetimgcol(&g),

tgetimgrow(&g));

char stcommand[256] = {0};

size_t len = snprintf(stcommand, sizeof(stcommand), "%s -e less", argv0);

if (len > sizeof(stcommand) - 1) {

fprintf(stderr, "Executable name too long: %s\n",

argv0);

return;

}

gr_show_image_info(image_id, tgetimgplacementid(&g),

tgetimgcol(&g), tgetimgrow(&g),

tgetisclassicplaceholder(&g),

tgetimgdiacriticcount(&g), argv0);

}

}

void

togglegrdebug(const Arg *arg)

{

graphics_debug_mode = (graphics_debug_mode + 1) % 3;

redraw();

}

void

dumpgrstate(const Arg *arg)

{

gr_dump_state();

}

void

unloadimages(const Arg *arg)

{

gr_unload_images_to_reduce_ram();

}

void

toggleimages(const Arg *arg)

{

graphics_display_images = !graphics_display_images;

redraw();

}

int

evcol(XEvent *e)

{

int x = e->xbutton.x - win.hborderpx;

LIMIT(x, 0, win.tw - 1);

return x / win.cw;

}

int

evrow(XEvent *e)

{

int y = e->xbutton.y - win.vborderpx;

LIMIT(y, 0, win.th - 1);

return y / win.ch;

}

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, btn, code;

int x = evcol(e), y = evrow(e);

int state = e->xbutton.state;

char buf[40];

static int ox, oy;

if (e->type == MotionNotify) {

if (x == ox && y == oy)

return;

if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))

return;

/* MODE_MOUSEMOTION: no reporting if no button is pressed */

if (IS_SET(MODE_MOUSEMOTION) && buttons == 0)

return;

/* Set btn to lowest-numbered pressed button, or 12 if no

* buttons are pressed. */

for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++)

;

code = 32;

} else {

btn = e->xbutton.button;

/* Only buttons 1 through 11 can be encoded */

if (btn < 1 || btn > 11)

return;

if (e->type == ButtonRelease) {

/* MODE_MOUSEX10: no button release reporting */

if (IS_SET(MODE_MOUSEX10))

return;

/* Don't send release events for the scroll wheel */

if (btn == 4 || btn == 5)

return;

}

code = 0;

}

ox = x;

oy = y;

/* Encode btn into code. If no button is pressed for a motion event in

* MODE_MOUSEMANY, then encode it as a release. */

if ((!IS_SET(MODE_MOUSESGR) && e->type == ButtonRelease) || btn == 12)

code += 3;

else if (btn >= 8)

code += 128 + btn - 8;

else if (btn >= 4)

code += 64 + btn - 4;

else

code += btn - 1;

if (!IS_SET(MODE_MOUSEX10)) {

code += ((state & ShiftMask ) ? 4 : 0)

+ ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */

+ ((state & ControlMask) ? 16 : 0);

}

if (IS_SET(MODE_MOUSESGR)) {

len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",

code, x+1, y+1,

e->type == ButtonRelease ? 'm' : 'M');

} else if (x < 223 && y < 223) {

len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",

32+code, 32+x+1, 32+y+1);

} else {

return;

}

ttywrite(buf, len, 0);

}

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);

mouse_col = evcol(e);

mouse_row = evrow(e);

for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {

if (ms->release == release &&

ms->button == e->xbutton.button &&

(!ms->altscrn || (ms->altscrn == (tisaltscr() ? 1 : -1))) &&

(match(ms->mod, state) || /* exact or forced */

match(ms->mod, state & ~forcemousemod))) {

ms->func(&(ms->arg));

return 1;

}

}

return 0;

}

void

bpress(XEvent *e)

{

int btn = e->xbutton.button;

struct timespec now;

int snap;

if (1 <= btn && btn <= 11)

buttons |= 1 << (btn-1);

if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {

mousereport(e);

return;

}

if (mouseaction(e, 0))

return;

if (btn == 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;

if (property == xw.XdndSelection) {

xdndsel(e);

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

xdndsel(XEvent *e)

{

char* data;

unsigned long result;

Atom actualType;

int32_t actualFormat;

unsigned long bytesAfter;

XEvent reply = { ClientMessage };

reply.xclient.window = xw.XdndSourceWin;

reply.xclient.format = 32;

reply.xclient.data.l[0] = (long) xw.win;

reply.xclient.data.l[2] = 0;

reply.xclient.data.l[3] = 0;

XGetWindowProperty((Display*) xw.dpy, e->xselection.requestor,

e->xselection.property, 0, LONG_MAX, False,

e->xselection.target, &actualType, &actualFormat, &result,

&bytesAfter, (unsigned char**) &data);

if (result == 0)

return;

if (data) {

xdndpastedata(data);

XFree(data);

}

if (xw.XdndSourceVersion >= 2) {

reply.xclient.message_type = xw.XdndFinished;

reply.xclient.data.l[1] = result;

reply.xclient.data.l[2] = xw.XdndActionCopy;

XSendEvent((Display*) xw.dpy, xw.XdndSourceWin, False, NoEventMask,

&reply);

XFlush((Display*) xw.dpy);

}

}

int

xdndurldecode(char *src, char *dest)

{

char c;

int i = 0;

while (*src) {

if (*src == '%' && HEX_TO_INT(src[1]) != -1 && HEX_TO_INT(src[2]) != -1) {

/* handle %xx escape sequences in url e.g. %20 == ' ' */

c = (char)((HEX_TO_INT(src[1]) << 4) | HEX_TO_INT(src[2]));

src += 3;

} else {

c = *src++;

}

if (strchr(xdndescchar, c) != NULL) {

*dest++ = '\\';

i++;

}

*dest++ = c;

i++;

}

*dest++ = ' ';

*dest = '\0';

return i + 1;

}

void

xdndpastedata(char *data)

{

char *pastedata, *t;

int i = 0;

pastedata = (char *)malloc(strlen(data) * 2 + 1);

*pastedata = '\0';

t = strtok(data, "\n\r");

while(t != NULL) {

/* remove 'file://' prefix if it exists */

if (strncmp(data, "file://", 7) == 0)

t += 7;

i += xdndurldecode(t, pastedata + i);

t = strtok(NULL, "\n\r");

}

xsetsel(pastedata);

selpaste(0);

}

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();

}

void

xsetsel(char *str)

{

setsel(str, CurrentTime);

}

void

brelease(XEvent *e)

{

int btn = e->xbutton.button;

if (1 <= btn && btn <= 11)

buttons &= ~(1 << (btn-1));

if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {

mousereport(e);

return;

}

if (mouseaction(e, 1))

return;

if (btn == Button1)

mousesel(e, 1);

}

void

bmotion(XEvent *e)

{

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);

win.hborderpx = (win.w - col * win.cw) * anysize_halign / 100;

win.vborderpx = (win.h - row * win.ch) * anysize_valign / 100;

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;

XFreePixmap(xw.dpy, xw.buf);

xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h,

xw.depth);

XftDrawChange(xw.draw, xw.buf);

xclear(0, 0, win.w, win.h);

/* resize to new width */

xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4);

}

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);

}

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);

}