diff -r 2647ea8b9793 sys/man/1/tweak --- a/sys/man/1/tweak Sun Dec 06 21:52:01 2020 +0100 +++ b/sys/man/1/tweak Mon Dec 07 21:17:12 2020 +0100 @@ -155,6 +155,16 @@ Quit .IR tweak . The program will complain once about modified but unwritten files. +.PP +.I Tweak +listens to the +.I plumber +channel +.B imageedit +for filenames as well as image data. Plumbed image data is stored as files in +.B /tmp +and is automatically cleaned when exiting +.IR tweak . .SH SOURCE .B /sys/src/cmd/tweak.c .SH "SEE ALSO" diff -r 2647ea8b9793 sys/src/cmd/tweak.c --- a/sys/src/cmd/tweak.c Sun Dec 06 21:52:01 2020 +0100 +++ b/sys/src/cmd/tweak.c Mon Dec 07 21:17:12 2020 +0100 @@ -3,8 +3,11 @@ #include #include #include +#include #include +#define Eplumb 128 + typedef struct Thing Thing; struct Thing @@ -157,6 +160,8 @@ int but1val = 0; int but2val = 255; int invert = 0; +int blockinput = 0; +int tmpindex = 0; Image *values[256]; Image *greyvalues[256]; uchar data[8192]; @@ -172,12 +177,60 @@ void tclose1(Thing*); void +flushevents(ulong keys) +{ + Event e; + if(keys == 0) + return; + while(ecanread(keys)) + eread(keys, &e); +} + +char* +pshowdata(Plumbmsg *pm) +{ + int fd; + char *file; + file = smprint("/tmp/tweaktmp.%d.%d", getpid(), tmpindex++); + if(file == 0) + sysfatal("malloc failed: %r"); + fd = create(file, OWRITE|OEXCL, 0600); + if(fd < 0){ + free(file); + mesg("cannot create tmpfile."); + return nil; + } + if(write(fd, pm->data, pm->ndata) != pm->ndata){ + mesg("error writing tmpfile: %r"); + close(fd); + free(file); + return nil; + } + close(fd); + return file; +} + +char* +pfilename(Plumbmsg *pm) +{ + char *file; + if(pm->data[0] == '/') + file = cleanname(smprint("%.*s", pm->ndata, pm->data)); + else + file = cleanname(smprint("%s/%.*s", pm->wdir, pm->ndata, pm->data)); + return file; +} + +void main(int argc, char *argv[]) { int i; Event e; Thing *t; + Plumbmsg *pm; + char *s; + srand(time(0)); mag = Mag; if(initdraw(error, 0, "tweak") < 0){ fprint(2, "tweak: initdraw failed: %r\n"); @@ -190,6 +243,7 @@ drawerror(display, "can't allocate image"); } einit(Emouse|Ekeyboard); + eplumb(Eplumb, "imageedit"); eresized(0); i = 1; setjmp(err); @@ -214,6 +268,27 @@ } if(mouse.buttons & 4) menu(); + break; + case Eplumb: + pm = e.v; + if(pm->ndata == 0) + break; + s = plumblookup(pm->attr, "action"); + if(s && strcmp(s, "showdata") == 0) + file = pshowdata(pm); + else + file = pfilename(pm); + if(!file){ + mesg("invalid plumb data"); + plumbfree(pm); + break; + } + plumbfree(pm); + t = tget(file); + if(t) + drawthing(t, 1); + flushimage(display, 1); + file = 0; } } @@ -531,6 +606,12 @@ nt->tr.max.y = nt->tr.min.y + nl; nt->er.max.y = nt->tr.max.y + Border; text(nt); + + mesg(""); + if(blockinput){ + flushevents(Emouse|Ekeyboard); + blockinput = 0; + } } int @@ -557,6 +638,9 @@ uchar buf[256]; char *data; + mesg("reading %s", file); + blockinput = 1; + buf[0] = '\0'; errstr((char*)buf, sizeof buf); /* flush pending error message */ memmove(oerr, err, sizeof err); @@ -1992,6 +2076,17 @@ } void +cleantmpfiles(void) +{ + char *s; + for(tmpindex--; tmpindex >= 0; tmpindex--){ + s = smprint("/tmp/tweaktmp.%d.%d", getpid(), tmpindex); + remove(s); + free(s); + } +} + +void menu(void) { Thing *t; @@ -2041,6 +2136,7 @@ buttons(Down); if(mouse.buttons == 4){ buttons(Up); + cleantmpfiles(); exits(0); } buttons(Up);