void pdfapp_onkey(pdfapp_t *app, int c)
{
int oldpage = app->pageno;
enum panning panto = PAN_TO_TOP;
int loadpage = 1;
if (app->isediting)
{
int n = strlen(app->search);
if (c < ' ')
{
if (c == '\b' && n > 0)
{
app->search[n - 1] = 0;
winrepaintsearch(app);
}
if (c == '\n' || c == '\r')
{
app->isediting = 0;
if (n > 0)
{
winrepaintsearch(app);
pdfapp_onkey(app, 'n');
}
else
winrepaint(app);
}
if (c == '\033')
{
app->isediting = 0;
winrepaint(app);
}
}
else
{
if (n + 2 < sizeof app->search)
{
app->search[n] = c;
app->search[n + 1] = 0;
winrepaintsearch(app);
}
}
return;
}
/*
* Save numbers typed for later
*/
if (c >= '0' && c <= '9')
{
app->number[app->numberlen++] = c;
app->number[app->numberlen] = '\0';
}
switch (c)
{
case '?':
winhelp(app);
break;
case 'q':
winclose(app);
break;
/*
* Zoom and rotate
*/
case '+':
case '=':
app->resolution *= ZOOMSTEP;
if (app->resolution > MAXRES)
app->resolution = MAXRES;
pdfapp_showpage(app, 0, 1, 1);
break;
case '-':
app->resolution /= ZOOMSTEP;
if (app->resolution < MINRES)
app->resolution = MINRES;
pdfapp_showpage(app, 0, 1, 1);
break;
case 'L':
app->rotate -= 90;
pdfapp_showpage(app, 0, 1, 1);
break;
case 'R':
app->rotate += 90;
pdfapp_showpage(app, 0, 1, 1);
break;
case 'c':
app->grayscale ^= 1;
pdfapp_showpage(app, 0, 1, 1);
break;
#ifndef NDEBUG
case 'a':
app->rotate -= 15;
pdfapp_showpage(app, 0, 1, 1);
break;
case 's':
app->rotate += 15;
pdfapp_showpage(app, 0, 1, 1);
break;
#endif
/*
* Pan view, but dont need to repaint image
*/
case 'w':
app->shrinkwrap = 1;
app->panx = app->pany = 0;
pdfapp_showpage(app, 0, 0, 1);
break;
case 'h':
app->panx += app->image->w / 10;
pdfapp_showpage(app, 0, 0, 1);
break;
case 'j':
app->pany -= app->image->h / 10;
pdfapp_showpage(app, 0, 0, 1);
break;
case 'k':
app->pany += app->image->h / 10;
pdfapp_showpage(app, 0, 0, 1);
break;
case 'l':
app->panx -= app->image->w / 10;
pdfapp_showpage(app, 0, 0, 1);
break;
/*
* Page navigation
*/
case 'g':
case '\n':
case '\r':
if (app->numberlen > 0)
app->pageno = atoi(app->number);
else
app->pageno = 1;
break;
case 'G':
app->pageno = app->pagecount;
break;
case 'm':
if (app->numberlen > 0)
{
int idx = atoi(app->number);
if (idx >= 0 && idx < nelem(app->marks))
app->marks[idx] = app->pageno;
}
else
{
if (app->histlen + 1 == 256)
{
memmove(app->hist, app->hist + 1, sizeof(int) * 255);
app->histlen --;
}
app->hist[app->histlen++] = app->pageno;
}
break;
case 't':
if (app->numberlen > 0)
{
int idx = atoi(app->number);
if (idx >= 0 && idx < nelem(app->marks))
if (app->marks[idx] > 0)
app->pageno = app->marks[idx];
}
else if (app->histlen > 0)
app->pageno = app->hist[--app->histlen];
break;
/*
* Back and forth ...
*/
case ',':
panto = PAN_TO_BOTTOM;
if (app->numberlen > 0)
app->pageno -= atoi(app->number);
else
app->pageno--;
break;
case '.':
panto = PAN_TO_TOP;
if (app->numberlen > 0)
app->pageno += atoi(app->number);
else
app->pageno++;
break;
case 'b':
panto = DONT_PAN;
if (app->numberlen > 0)
app->pageno -= atoi(app->number);
else
app->pageno--;
break;
case ' ':
panto = DONT_PAN;
if (app->numberlen > 0)
app->pageno += atoi(app->number);
else
app->pageno++;
break;
case '<':
panto = PAN_TO_TOP;
app->pageno -= 10;
break;
case '>':
panto = PAN_TO_TOP;
app->pageno += 10;
break;
/*
* Reloading the file...
*/
case 'r':
panto = DONT_PAN;
oldpage = -1;
winreloadfile(app);
break;
/*
* Searching
*/
case '/':
app->isediting = 1;
app->search[0] = 0;
app->hit = -1;
app->hitlen = 0;
winrepaintsearch(app);
break;
case 'n':
pdfapp_searchforward(app, &panto);
loadpage = 0;
break;
case 'N':
pdfapp_searchbackward(app, &panto);
loadpage = 0;
break;
}
if (c < '0' || c > '9')
app->numberlen = 0;
if (app->pageno < 1)
app->pageno = 1;
if (app->pageno > app->pagecount)
app->pageno = app->pagecount;
if (app->pageno != oldpage)
{
switch (panto)
{
case PAN_TO_TOP:
app->pany = 0;
break;
case PAN_TO_BOTTOM:
app->pany = -2000;
break;
case DONT_PAN:
break;
}
pdfapp_showpage(app, loadpage, 1, 1);
}
}
int main(int argc, char **argv)
{
int c;
int len;
char buf[128];
KeySym keysym;
int oldx = 0;
int oldy = 0;
int resolution = -1;
int pageno = 1;
fd_set fds;
int width = -1;
int height = -1;
fz_context *ctx;
struct timeval tmo_at;
struct timeval now;
struct timeval tmo;
struct timeval *timeout;
struct timeval tmo_advance_delay;
ctx = fz_new_context(NULL, NULL, FZ_STORE_DEFAULT);
if (!ctx)
{
fprintf(stderr, "cannot initialise context\n");
exit(1);
}
while ((c = fz_getopt(argc, argv, "p:r:b:")) != -1)
{
switch (c)
{
case 'p': password = fz_optarg; break;
case 'r': resolution = atoi(fz_optarg); break;
case 'b': fz_set_aa_level(ctx, atoi(fz_optarg)); break;
default: usage();
}
}
if (argc - fz_optind == 0)
usage();
filename = argv[fz_optind++];
if (argc - fz_optind == 1)
pageno = atoi(argv[fz_optind++]);
pdfapp_init(ctx, &gapp);
winopen();
if (resolution == -1)
resolution = winresolution();
if (resolution < MINRES)
resolution = MINRES;
if (resolution > MAXRES)
resolution = MAXRES;
gapp.transitions_enabled = 1;
gapp.scrw = DisplayWidth(xdpy, xscr);
gapp.scrh = DisplayHeight(xdpy, xscr);
gapp.resolution = resolution;
gapp.pageno = pageno;
pdfapp_open(&gapp, filename, 0);
FD_ZERO(&fds);
signal(SIGHUP, signal_handler);
tmo_at.tv_sec = 0;
tmo_at.tv_usec = 0;
while (!closing)
{
while (!closing && XPending(xdpy) && !transition_dirty)
{
XNextEvent(xdpy, &xevt);
switch (xevt.type)
{
case Expose:
dirty = 1;
break;
case ConfigureNotify:
if (gapp.image)
{
if (xevt.xconfigure.width != reqw ||
xevt.xconfigure.height != reqh)
gapp.shrinkwrap = 0;
}
width = xevt.xconfigure.width;
height = xevt.xconfigure.height;
break;
case KeyPress:
len = XLookupString(&xevt.xkey, buf, sizeof buf, &keysym, NULL);
if (!gapp.isediting)
switch (keysym)
{
case XK_Escape:
len = 1; buf[0] = '\033';
break;
case XK_Up:
len = 1; buf[0] = 'k';
break;
case XK_Down:
len = 1; buf[0] = 'j';
break;
case XK_Left:
len = 1; buf[0] = 'b';
break;
case XK_Right:
len = 1; buf[0] = ' ';
break;
case XK_Page_Up:
len = 1; buf[0] = ',';
break;
case XK_Page_Down:
len = 1; buf[0] = '.';
break;
}
if (xevt.xkey.state & ControlMask && keysym == XK_c)
docopy(&gapp, XA_CLIPBOARD);
else if (len)
onkey(buf[0]);
onmouse(oldx, oldy, 0, 0, 0);
break;
case MotionNotify:
oldx = xevt.xmotion.x;
oldy = xevt.xmotion.y;
onmouse(xevt.xmotion.x, xevt.xmotion.y, 0, xevt.xmotion.state, 0);
break;
case ButtonPress:
onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, 1);
break;
case ButtonRelease:
copytime = xevt.xbutton.time;
onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, -1);
break;
case SelectionRequest:
onselreq(xevt.xselectionrequest.requestor,
xevt.xselectionrequest.selection,
xevt.xselectionrequest.target,
xevt.xselectionrequest.property,
xevt.xselectionrequest.time);
break;
case ClientMessage:
if (xevt.xclient.format == 32 && xevt.xclient.data.l[0] == WM_DELETE_WINDOW)
closing = 1;
break;
}
}
if (closing)
continue;
if (width != -1 || height != -1)
{
pdfapp_onresize(&gapp, width, height);
width = -1;
height = -1;
}
if (dirty || dirtysearch)
{
if (dirty)
winblit(&gapp);
else if (dirtysearch)
winblitsearch(&gapp);
dirty = 0;
transition_dirty = 0;
dirtysearch = 0;
pdfapp_postblit(&gapp);
}
if (showingpage && !tmo_at.tv_sec && !tmo_at.tv_usec)
{
tmo.tv_sec = 2;
tmo.tv_usec = 0;
gettimeofday(&now, NULL);
timeradd(&now, &tmo, &tmo_at);
}
if (XPending(xdpy) || transition_dirty)
continue;
timeout = NULL;
if (tmo_at.tv_sec || tmo_at.tv_usec)
{
gettimeofday(&now, NULL);
timersub(&tmo_at, &now, &tmo);
if (tmo.tv_sec <= 0)
{
tmo_at.tv_sec = 0;
tmo_at.tv_usec = 0;
timeout = NULL;
showingpage = 0;
winrepaint(&gapp);
}
else
timeout = &tmo;
}
if (advance_scheduled)
{
gettimeofday(&now, NULL);
timersub(&tmo_advance, &now, &tmo_advance_delay);
if (tmo_advance_delay.tv_sec <= 0)
{
/* Too late already */
onkey(' ');
onmouse(oldx, oldy, 0, 0, 0);
advance_scheduled = 0;
}
else if (timeout == NULL)
{
timeout = &tmo_advance_delay;
}
else
{
struct timeval tmp;
timersub(&tmo_advance_delay, timeout, &tmp);
if (tmp.tv_sec < 0)
{
timeout = &tmo_advance_delay;
}
}
}
FD_SET(x11fd, &fds);
if (select(x11fd + 1, &fds, NULL, NULL, timeout) < 0)
{
if (reloading)
{
winreloadfile(&gapp);
reloading = 0;
}
}
if (!FD_ISSET(x11fd, &fds))
{
if (timeout == &tmo_advance_delay)
{
onkey(' ');
onmouse(oldx, oldy, 0, 0, 0);
advance_scheduled = 0;
}
else
{
tmo_at.tv_sec = 0;
tmo_at.tv_usec = 0;
timeout = NULL;
showingpage = 0;
winrepaint(&gapp);
}
}
}
cleanup(&gapp);
return 0;
}
int main(int argc, char **argv)
{
int c;
int len;
char buf[128];
KeySym keysym;
int oldx = 0;
int oldy = 0;
int resolution = 72;
int pageno = 1;
int pagemark = 0;
int accelerate = 1;
int fd;
fd_set fds;
int width = -1;
int height = -1;
while ((c = fz_getopt(argc, argv, "p:r:b:A")) != -1)
{
switch (c)
{
case 'p': password = fz_optarg; break;
case 'r': resolution = atoi(fz_optarg); break;
case 'A': accelerate = 0; break;
case 'b': fz_set_aa_level(atoi(fz_optarg)); break;
default: usage();
}
}
if (resolution < MINRES)
resolution = MINRES;
if (resolution > MAXRES)
resolution = MAXRES;
if (argc - fz_optind == 0)
usage();
if (accelerate)
fz_accelerate();
filename = argv[fz_optind++];
winopen();
pdfapp_init(&gapp);
gapp.scrw = DisplayWidth(xdpy, xscr);
gapp.scrh = DisplayHeight(xdpy, xscr);
gapp.resolution = resolution;
if (argc - fz_optind > 1)
pageno = atoi(argv[fz_optind++]);
gapp.pageno = pageno;
fd = open(filename, O_BINARY | O_RDONLY, 0666);
if (fd < 0)
winerror(&gapp, fz_throw("cannot open file '%s'", filename));
pdfapp_open(&gapp, filename, fd, 0);
if (pdfapp_calcfilehash(&gapp, fd))
{
pdfapp_getmarkfile(&gapp);
pagemark = pdfapp_getpgmark(&gapp);
if (pagemark > 0)
{
if (pagemark <= gapp.pagecount)
{
gapp.pageno = pagemark;
pdfapp_showpage(&gapp, 1, 1, 1);
}
else
pdfapp_closemarkfile(&gapp);
}
}
FD_ZERO(&fds);
FD_SET(x11fd, &fds);
signal(SIGHUP, signal_handler);
atexit(exit_cb);
while (!closing)
{
do
{
XNextEvent(xdpy, &xevt);
switch (xevt.type)
{
case Expose:
dirty = 1;
break;
case ConfigureNotify:
if (gapp.image)
{
if (xevt.xconfigure.width != reqw ||
xevt.xconfigure.height != reqh)
gapp.shrinkwrap = 0;
}
width = xevt.xconfigure.width;
height = xevt.xconfigure.height;
break;
case KeyPress:
len = XLookupString(&xevt.xkey, buf, sizeof buf, &keysym, NULL);
if (!gapp.isediting)
switch (keysym)
{
case XK_Escape:
len = 1; buf[0] = '\033';
break;
case XK_Up:
len = 1; buf[0] = 'k';
break;
case XK_Down:
len = 1; buf[0] = 'j';
break;
case XK_Left:
len = 1; buf[0] = 'b';
break;
case XK_Right:
len = 1; buf[0] = ' ';
break;
case XK_Page_Up:
len = 1; buf[0] = ',';
break;
case XK_Page_Down:
len = 1; buf[0] = '.';
break;
}
if (len)
onkey(buf[0]);
onmouse(oldx, oldy, 0, 0, 0);
break;
case MotionNotify:
oldx = xevt.xbutton.x;
oldy = xevt.xbutton.y;
onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, 0);
break;
case ButtonPress:
onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, 1);
break;
case ButtonRelease:
copytime = xevt.xbutton.time;
onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, -1);
break;
case SelectionRequest:
onselreq(xevt.xselectionrequest.requestor,
xevt.xselectionrequest.selection,
xevt.xselectionrequest.target,
xevt.xselectionrequest.property,
xevt.xselectionrequest.time);
break;
case ClientMessage:
if (xevt.xclient.format == 32 && xevt.xclient.data.l[0] == WM_DELETE_WINDOW)
closing = 1;
break;
}
}
while (!closing && XPending(xdpy));
if (closing)
continue;
if (width != -1 || height != -1)
{
pdfapp_onresize(&gapp, width, height);
width = -1;
height = -1;
}
if (dirty || dirtysearch)
{
if (dirty)
winblit(&gapp);
else if (dirtysearch)
winblitsearch(&gapp);
dirty = 0;
dirtysearch = 0;
}
if (XPending(xdpy))
continue;
if (select(x11fd + 1, &fds, NULL, NULL, NULL) < 0)
{
if (reloading)
{
winreloadfile(&gapp);
reloading = 0;
}
}
}
pdfapp_close(&gapp);
XDestroyWindow(xdpy, xwin);
XFreePixmap(xdpy, xicon);
XFreeCursor(xdpy, xcwait);
XFreeCursor(xdpy, xchand);
XFreeCursor(xdpy, xcarrow);
XFreeGC(xdpy, xgc);
XCloseDisplay(xdpy);
return 0;
}
