/* sxiv: main.c * Copyright (c) 2011 Bert Muennich * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include "sxiv.h" #include "image.h" #include "window.h" void on_keypress(XEvent*); void on_buttonpress(XEvent*); void on_buttonrelease(XEvent*); void on_motionnotify(XEvent*); void on_configurenotify(XEvent*); void update_title(); static void (*handler[LASTEvent])(XEvent*) = { [KeyPress] = on_keypress, [ButtonPress] = on_buttonpress, [ButtonRelease] = on_buttonrelease, [MotionNotify] = on_motionnotify, [ConfigureNotify] = on_configurenotify }; img_t img; win_t win; const char **filenames; int filecnt, fileidx; unsigned char timeout; int mox; int moy; #define TITLE_LEN 256 char win_title[TITLE_LEN]; void run() { int xfd; fd_set fds; struct timeval t; XEvent ev; timeout = 0; while (1) { if (timeout) { t.tv_sec = 0; t.tv_usec = 250; xfd = ConnectionNumber(win.env.dpy); FD_ZERO(&fds); FD_SET(xfd, &fds); if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) { img_render(&img, &win); timeout = 0; } } if (!XNextEvent(win.env.dpy, &ev) && handler[ev.type]) handler[ev.type](&ev); } } int main(int argc, char **argv) { int i; parse_options(argc, argv); if (!options->filecnt) { print_usage(); exit(1); } if (!(filenames = (const char**) malloc(options->filecnt * sizeof(char*)))) DIE("could not allocate memory"); fileidx = 0; filecnt = 0; for (i = 0; i < options->filecnt; ++i) { if (!(img_load(&img, options->filenames[i]) < 0)) filenames[filecnt++] = options->filenames[i]; } if (!filecnt) { fprintf(stderr, "sxiv: no valid image filename given, aborting\n"); exit(1); } win_open(&win); img_init(&img, &win); img_load(&img, filenames[fileidx]); img_render(&img, &win); update_title(); run(); cleanup(); return 0; } void cleanup() { static int in = 0; if (!in++) { img_free(&img); win_close(&win); } } void on_keypress(XEvent *ev) { char key; KeySym ksym; int changed; if (!ev) return; XLookupString(&ev->xkey, &key, 1, &ksym, NULL); changed = 0; switch (ksym) { case XK_Escape: cleanup(); exit(2); case XK_q: cleanup(); exit(0); /* navigate image list */ case XK_n: case XK_space: if (fileidx + 1 < filecnt) { img_load(&img, filenames[++fileidx]); changed = 1; } break; case XK_p: case XK_BackSpace: if (fileidx > 0) { img_load(&img, filenames[--fileidx]); changed = 1; } break; case XK_bracketleft: if (fileidx != 0) { fileidx = MAX(0, fileidx - 10); img_load(&img, filenames[fileidx]); changed = 1; } break; case XK_bracketright: if (fileidx != filecnt - 1) { fileidx = MIN(fileidx + 10, filecnt - 1); img_load(&img, filenames[fileidx]); changed = 1; } break; case XK_g: if (fileidx != 0) { fileidx = 0; img_load(&img, filenames[fileidx]); changed = 1; } break; case XK_G: if (fileidx != filecnt - 1) { fileidx = filecnt - 1; img_load(&img, filenames[fileidx]); changed = 1; } break; /* zooming */ case XK_plus: case XK_equal: changed = img_zoom_in(&img); break; case XK_minus: changed = img_zoom_out(&img); break; /* panning */ case XK_h: case XK_Left: changed = img_pan(&img, &win, PAN_LEFT); break; case XK_j: case XK_Down: changed = img_pan(&img, &win, PAN_DOWN); break; case XK_k: case XK_Up: changed = img_pan(&img, &win, PAN_UP); break; case XK_l: case XK_Right: changed = img_pan(&img, &win, PAN_RIGHT); break; /* rotation */ case XK_less: changed = img_rotate_left(&img, &win); break; case XK_greater: changed = img_rotate_right(&img, &win); break; /* control window */ case XK_f: win_toggle_fullscreen(&win); break; /* miscellaneous */ case XK_a: changed = img_toggle_antialias(&img); break; } if (changed) { img_render(&img, &win); update_title(); timeout = 0; } } void on_buttonpress(XEvent *ev) { int changed; unsigned int mask; if (!ev) return; mask = CLEANMASK(ev->xbutton.state); changed = 0; switch (ev->xbutton.button) { case Button1: if (fileidx + 1 < filecnt) { img_load(&img, filenames[++fileidx]); changed = 1; } break; case Button2: mox = ev->xbutton.x; moy = ev->xbutton.y; win_set_cursor(&win, CURSOR_HAND); break; case Button3: if (fileidx > 0) { img_load(&img, filenames[--fileidx]); changed = 1; } break; case Button4: if (mask == ControlMask) changed = img_zoom_in(&img); else if (mask == ShiftMask) changed = img_pan(&img, &win, PAN_LEFT); else changed = img_pan(&img, &win, PAN_UP); break; case Button5: if (mask == ControlMask) changed = img_zoom_out(&img); else if (mask == ShiftMask) changed = img_pan(&img, &win, PAN_RIGHT); else changed = img_pan(&img, &win, PAN_DOWN); break; case 6: changed = img_pan(&img, &win, PAN_LEFT); break; case 7: changed = img_pan(&img, &win, PAN_RIGHT); break; } if (changed) { img_render(&img, &win); update_title(); timeout = 0; } } void on_buttonrelease(XEvent *ev) { if (!ev) return; if (ev->xbutton.button == Button2) win_set_cursor(&win, CURSOR_ARROW); } void on_motionnotify(XEvent *ev) { XMotionEvent *m; if (!ev) return; m = &ev->xmotion; if (m->x >= 0 && m->x <= win.w && m->y >= 0 && m->y <= win.h) { if (img_move(&img, &win, m->x - mox, m->y - moy)) timeout = 1; mox = m->x; moy = m->y; } } void on_configurenotify(XEvent *ev) { if (!ev) return; if (win_configure(&win, &ev->xconfigure)) { img.checkpan = 1; timeout = 1; } } void update_title() { int n; n = snprintf(win_title, TITLE_LEN, "sxiv: [%d/%d] <%d%%> %s", fileidx + 1, filecnt, (int) (img.zoom * 100.0), filenames[fileidx]); if (n >= TITLE_LEN) { win_title[TITLE_LEN - 2] = '.'; win_title[TITLE_LEN - 3] = '.'; win_title[TITLE_LEN - 4] = '.'; } win_set_title(&win, win_title); }