Manual event handling in main.c
Bert
parent
e8cf8da208
commit
12a94cc40e
301
main.c
301
main.c
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@ -32,17 +32,10 @@
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#include "util.h"
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#include "window.h"
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void on_keypress(XEvent*);
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void on_buttonpress(XEvent*);
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void on_buttonrelease(XEvent*);
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void on_motionnotify(XEvent*);
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void on_configurenotify(XEvent*);
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void update_title();
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void check_append(const char*);
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void read_dir_rec(const char*);
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static void (*handler[LASTEvent])(XEvent*);
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void run();
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img_t img;
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win_t win;
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@ -52,11 +45,6 @@ win_t win;
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const char **filenames;
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int filecnt, fileidx;
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unsigned char timeout;
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int mox;
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int moy;
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#define TITLE_LEN 256
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char win_title[TITLE_LEN];
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@ -69,39 +57,6 @@ void cleanup() {
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}
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}
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void run() {
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int xfd;
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fd_set fds;
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struct timeval t;
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XEvent ev;
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handler[KeyPress] = on_keypress;
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handler[ButtonPress] = on_buttonpress;
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handler[ButtonRelease] = on_buttonrelease;
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handler[MotionNotify] = on_motionnotify;
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handler[ConfigureNotify] = on_configurenotify;
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timeout = 0;
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while (1) {
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if (timeout) {
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t.tv_sec = 0;
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t.tv_usec = 250;
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xfd = ConnectionNumber(win.env.dpy);
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FD_ZERO(&fds);
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FD_SET(xfd, &fds);
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if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) {
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img_render(&img, &win);
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timeout = 0;
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}
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}
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if (!XNextEvent(win.env.dpy, &ev) && handler[ev.type])
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handler[ev.type](&ev);
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}
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}
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int main(int argc, char **argv) {
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int i;
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const char *filename;
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@ -158,15 +113,102 @@ int main(int argc, char **argv) {
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return 0;
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}
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void on_keypress(XEvent *ev) {
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void update_title() {
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int n;
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n = snprintf(win_title, TITLE_LEN, "sxiv: [%d/%d] <%d%%> %s", fileidx + 1,
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filecnt, (int) (img.zoom * 100.0), filenames[fileidx]);
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if (n >= TITLE_LEN) {
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win_title[TITLE_LEN - 2] = '.';
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win_title[TITLE_LEN - 3] = '.';
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win_title[TITLE_LEN - 4] = '.';
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}
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win_set_title(&win, win_title);
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}
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void check_append(const char *filename) {
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if (!filename)
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return;
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if (img_check(filename)) {
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if (fileidx == filecnt) {
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filecnt *= 2;
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filenames = (const char**) s_realloc(filenames,
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filecnt * sizeof(const char*));
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}
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filenames[fileidx++] = filename;
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}
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}
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void read_dir_rec(const char *dirname) {
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char *filename;
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const char **dirnames;
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int dircnt, diridx;
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unsigned char first;
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size_t len;
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DIR *dir;
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struct dirent *dentry;
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struct stat fstats;
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if (!dirname)
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return;
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dircnt = DNAME_CNT;
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diridx = first = 1;
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dirnames = (const char**) s_malloc(dircnt * sizeof(const char*));
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dirnames[0] = dirname;
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while (diridx > 0) {
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dirname = dirnames[--diridx];
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if (!(dir = opendir(dirname)))
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die("could not open directory: %s", dirname);
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while ((dentry = readdir(dir))) {
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if (!strcmp(dentry->d_name, ".") || !strcmp(dentry->d_name, ".."))
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continue;
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len = strlen(dirname) + strlen(dentry->d_name) + 2;
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filename = (char*) s_malloc(len * sizeof(char));
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snprintf(filename, len, "%s/%s", dirname, dentry->d_name);
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if (stat(filename, &fstats)) {
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warn("could not stat file: %s", filename);
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free(filename);
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} else if (S_ISDIR(fstats.st_mode)) {
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if (diridx == dircnt) {
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dircnt *= 2;
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dirnames = (const char**) s_realloc(dirnames,
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dircnt * sizeof(const char*));
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}
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dirnames[diridx++] = filename;
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} else {
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check_append(filename);
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}
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}
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closedir(dir);
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if (!first)
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free((void*) dirname);
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else
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first = 0;
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}
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free(dirnames);
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}
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/* event handling */
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unsigned char timeout;
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int mox, moy;
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void on_keypress(XKeyEvent *kev) {
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char key;
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KeySym ksym;
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int changed;
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if (!ev)
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if (!kev)
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return;
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XLookupString(&ev->xkey, &key, 1, &ksym, NULL);
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XLookupString(kev, &key, 1, &ksym, NULL);
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changed = 0;
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switch (ksym) {
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@ -271,17 +313,17 @@ void on_keypress(XEvent *ev) {
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}
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}
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void on_buttonpress(XEvent *ev) {
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void on_buttonpress(XButtonEvent *bev) {
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int changed;
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unsigned int mask;
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if (!ev)
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if (!bev)
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return;
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mask = CLEANMASK(ev->xbutton.state);
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mask = CLEANMASK(bev->state);
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changed = 0;
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switch (ev->xbutton.button) {
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switch (bev->button) {
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case Button1:
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if (fileidx + 1 < filecnt) {
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img_load(&img, filenames[++fileidx]);
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@ -289,8 +331,8 @@ void on_buttonpress(XEvent *ev) {
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}
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break;
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case Button2:
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mox = ev->xbutton.x;
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moy = ev->xbutton.y;
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mox = bev->x;
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moy = bev->y;
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win_set_cursor(&win, CURSOR_HAND);
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break;
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case Button3:
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@ -330,118 +372,63 @@ void on_buttonpress(XEvent *ev) {
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}
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}
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void on_buttonrelease(XEvent *ev) {
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if (!ev)
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void on_motionnotify(XMotionEvent *mev) {
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if (!mev)
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return;
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if (ev->xbutton.button == Button2)
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win_set_cursor(&win, CURSOR_ARROW);
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}
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void on_motionnotify(XEvent *ev) {
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XMotionEvent *m;
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if (!ev)
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return;
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m = &ev->xmotion;
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if (m->x >= 0 && m->x <= win.w && m->y >= 0 && m->y <= win.h) {
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if (img_move(&img, &win, m->x - mox, m->y - moy))
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if (mev->x >= 0 && mev->x <= win.w && mev->y >= 0 && mev->y <= win.h) {
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if (img_move(&img, &win, mev->x - mox, mev->y - moy))
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timeout = 1;
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mox = m->x;
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moy = m->y;
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mox = mev->x;
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moy = mev->y;
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}
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}
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void on_configurenotify(XEvent *ev) {
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if (!ev)
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return;
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void run() {
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int xfd;
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fd_set fds;
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struct timeval t;
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XEvent ev;
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if (win_configure(&win, &ev->xconfigure)) {
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img.checkpan = 1;
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timeout = 1;
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}
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}
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timeout = 0;
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void update_title() {
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int n;
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n = snprintf(win_title, TITLE_LEN, "sxiv: [%d/%d] <%d%%> %s", fileidx + 1,
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filecnt, (int) (img.zoom * 100.0), filenames[fileidx]);
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if (n >= TITLE_LEN) {
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win_title[TITLE_LEN - 2] = '.';
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win_title[TITLE_LEN - 3] = '.';
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win_title[TITLE_LEN - 4] = '.';
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}
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win_set_title(&win, win_title);
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}
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void check_append(const char *filename) {
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if (!filename)
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return;
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if (img_check(filename)) {
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if (fileidx == filecnt) {
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filecnt *= 2;
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filenames = (const char**) s_realloc(filenames,
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filecnt * sizeof(const char*));
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}
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filenames[fileidx++] = filename;
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}
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}
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void read_dir_rec(const char *dirname) {
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char *filename;
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const char **dirnames;
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int dircnt, diridx;
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unsigned char first;
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size_t len;
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DIR *dir;
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struct dirent *dentry;
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struct stat fstats;
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if (!dirname)
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return;
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dircnt = DNAME_CNT;
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diridx = first = 1;
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dirnames = (const char**) s_malloc(dircnt * sizeof(const char*));
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dirnames[0] = dirname;
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while (diridx > 0) {
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dirname = dirnames[--diridx];
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if (!(dir = opendir(dirname)))
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die("could not open directory: %s", dirname);
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while ((dentry = readdir(dir))) {
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if (!strcmp(dentry->d_name, ".") || !strcmp(dentry->d_name, ".."))
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continue;
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len = strlen(dirname) + strlen(dentry->d_name) + 2;
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filename = (char*) s_malloc(len * sizeof(char));
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snprintf(filename, len, "%s/%s", dirname, dentry->d_name);
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if (stat(filename, &fstats)) {
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warn("could not stat file: %s", filename);
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free(filename);
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} else if (S_ISDIR(fstats.st_mode)) {
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if (diridx == dircnt) {
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dircnt *= 2;
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dirnames = (const char**) s_realloc(dirnames,
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dircnt * sizeof(const char*));
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}
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dirnames[diridx++] = filename;
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} else {
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check_append(filename);
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while (1) {
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if (timeout) {
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t.tv_sec = 0;
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t.tv_usec = 250;
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xfd = ConnectionNumber(win.env.dpy);
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FD_ZERO(&fds);
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FD_SET(xfd, &fds);
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if (!XPending(win.env.dpy) && !select(xfd + 1, &fds, 0, 0, &t)) {
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img_render(&img, &win);
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timeout = 0;
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}
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}
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closedir(dir);
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if (!first)
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free((void*) dirname);
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else
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first = 0;
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}
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free(dirnames);
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if (!XNextEvent(win.env.dpy, &ev)) {
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switch (ev.type) {
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case KeyPress:
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on_keypress(&ev.xkey);
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break;
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case ButtonPress:
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on_buttonpress(&ev.xbutton);
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break;
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case ButtonRelease:
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if (ev.xbutton.button == Button2)
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win_set_cursor(&win, CURSOR_ARROW);
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break;
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case MotionNotify:
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on_motionnotify(&ev.xmotion);
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break;
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case ConfigureNotify:
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if (win_configure(&win, &ev.xconfigure)) {
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img.checkpan = 1;
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timeout = 1;
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}
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break;
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}
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}
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}
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}
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