diff options
Diffstat (limited to 'menu.c')
| -rw-r--r-- | menu.c | 432 |
1 files changed, 0 insertions, 432 deletions
@@ -1,432 +0,0 @@ -/* - * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> - * (C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com> - * See LICENSE file for license details. - */ - -#include "config.h" -#include "draw.h" -#include "util.h" - -#include <ctype.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <X11/cursorfont.h> -#include <X11/Xutil.h> -#include <X11/keysym.h> - -typedef struct Item Item; - -struct Item { - Item *next; /* traverses all items */ - Item *left, *right; /* traverses items matching current search pattern */ - char *text; -}; - -static Display *dpy; -static Window root; -static Window win; -static Bool done = False; - -static Item *allitem = NULL; /* first of all items */ -static Item *item = NULL; /* first of pattern matching items */ -static Item *sel = NULL; -static Item *nextoff = NULL; -static Item *prevoff = NULL; -static Item *curroff = NULL; - -static int screen, mx, my, mw, mh; -static char *title = NULL; -static char text[4096]; -static int ret = 0; -static int nitem = 0; -static unsigned int cmdw = 0; -static unsigned int tw = 0; -static unsigned int cw = 0; -static const int seek = 30; /* 30px */ - -static Brush brush = {0}; - -static void draw_menu(); -static void kpress(XKeyEvent * e); - -static char version[] = "gridmenu - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n"; - -static void -usage() { error("usage: gridmenu [-v] [-t <title>]\n"); } - -static void -update_offsets() -{ - unsigned int tw, w = cmdw + 2 * seek; - - if(!curroff) - return; - - for(nextoff = curroff; nextoff; nextoff=nextoff->right) { - tw = textw(&brush.font, nextoff->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw + brush.font.height; - if(w > mw) - break; - } - - w = cmdw + 2 * seek; - for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) { - tw = textw(&brush.font, prevoff->left->text); - if(tw > mw / 3) - tw = mw / 3; - w += tw + brush.font.height; - if(w > mw) - break; - } -} - -static void -update_items(char *pattern) -{ - unsigned int plen = strlen(pattern); - Item *i, *j; - - if(!pattern) - return; - - if(!title || *pattern) - cmdw = cw; - else - cmdw = tw; - - item = j = NULL; - nitem = 0; - - for(i = allitem; i; i=i->next) - if(!plen || !strncmp(pattern, i->text, plen)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - for(i = allitem; i; i=i->next) - if(plen && strncmp(pattern, i->text, plen) - && strstr(i->text, pattern)) { - if(!j) - item = i; - else - j->right = i; - i->left = j; - i->right = NULL; - j = i; - nitem++; - } - - curroff = prevoff = nextoff = sel = item; - - update_offsets(); -} - -/* creates brush structs for brush mode drawing */ -static void -draw_menu() -{ - Item *i; - - brush.x = 0; - brush.y = 0; - brush.w = mw; - brush.h = mh; - draw(dpy, &brush, False, 0); - - /* print command */ - if(!title || text[0]) { - cmdw = cw; - if(cmdw && item) - brush.w = cmdw; - draw(dpy, &brush, False, text); - } - else { - cmdw = tw; - brush.w = cmdw; - draw(dpy, &brush, False, title); - } - brush.x += brush.w; - - if(curroff) { - brush.w = seek; - draw(dpy, &brush, False, (curroff && curroff->left) ? "<" : 0); - brush.x += brush.w; - - /* determine maximum items */ - for(i = curroff; i != nextoff; i=i->right) { - brush.border = False; - brush.w = textw(&brush.font, i->text); - if(brush.w > mw / 3) - brush.w = mw / 3; - brush.w += brush.font.height; - if(sel == i) { - swap((void **)&brush.fg, (void **)&brush.bg); - draw(dpy, &brush, True, i->text); - swap((void **)&brush.fg, (void **)&brush.bg); - } - else - draw(dpy, &brush, False, i->text); - brush.x += brush.w; - } - - brush.x = mw - seek; - brush.w = seek; - draw(dpy, &brush, False, nextoff ? ">" : 0); - } - XCopyArea(dpy, brush.drawable, win, brush.gc, 0, 0, mw, mh, 0, 0); - XFlush(dpy); -} - -static void -kpress(XKeyEvent * e) -{ - KeySym ksym; - char buf[32]; - int num, prev_nitem; - unsigned int i, len = strlen(text); - - buf[0] = 0; - num = XLookupString(e, buf, sizeof(buf), &ksym, 0); - - if(IsFunctionKey(ksym) || IsKeypadKey(ksym) - || IsMiscFunctionKey(ksym) || IsPFKey(ksym) - || IsPrivateKeypadKey(ksym)) - return; - - /* first check if a control mask is omitted */ - if(e->state & ControlMask) { - switch (ksym) { - default: /* ignore other control sequences */ - return; - break; - case XK_h: - ksym = XK_BackSpace; - break; - case XK_U: - case XK_u: - text[0] = 0; - update_items(text); - draw_menu(); - return; - break; - case XK_bracketleft: - ksym = XK_Escape; - break; - } - } - switch(ksym) { - case XK_Left: - if(!(sel && sel->left)) - return; - sel=sel->left; - if(sel->right == curroff) { - curroff = prevoff; - update_offsets(); - } - break; - case XK_Tab: - if(!sel) - return; - strncpy(text, sel->text, sizeof(text)); - update_items(text); - break; - case XK_Right: - if(!(sel && sel->right)) - return; - sel=sel->right; - if(sel == nextoff) { - curroff = nextoff; - update_offsets(); - } - break; - case XK_Return: - if(e->state & ShiftMask) { - if(text) - fprintf(stdout, "%s", text); - } - else if(sel) - fprintf(stdout, "%s", sel->text); - else if(text) - fprintf(stdout, "%s", text); - fflush(stdout); - done = True; - break; - case XK_Escape: - ret = 1; - done = True; - break; - case XK_BackSpace: - if((i = len)) { - prev_nitem = nitem; - do { - text[--i] = 0; - update_items(text); - } while(i && nitem && prev_nitem == nitem); - update_items(text); - } - break; - default: - if(num && !iscntrl((int) buf[0])) { - buf[num] = 0; - if(len > 0) - strncat(text, buf, sizeof(text)); - else - strncpy(text, buf, sizeof(text)); - update_items(text); - } - } - draw_menu(); -} - -static char * -read_allitems() -{ - static char *maxname = NULL; - char *p, buf[1024]; - unsigned int len = 0, max = 0; - Item *i, *new; - - i = 0; - while(fgets(buf, sizeof(buf), stdin)) { - len = strlen(buf); - if (buf[len - 1] == '\n') - buf[len - 1] = 0; - p = estrdup(buf); - if(max < len) { - maxname = p; - max = len; - } - - new = emalloc(sizeof(Item)); - new->next = new->left = new->right = NULL; - new->text = p; - if(!i) - allitem = new; - else - i->next = new; - i = new; - } - - return maxname; -} - -int -main(int argc, char *argv[]) -{ - int i; - XSetWindowAttributes wa; - char *maxname; - XEvent ev; - - /* command line args */ - for(i = 1; i < argc; i++) { - if (argv[i][0] == '-') - switch (argv[i][1]) { - case 'v': - fprintf(stdout, "%s", version); - exit(0); - break; - case 't': - if(++i < argc) - title = argv[i]; - else - usage(); - break; - default: - usage(); - break; - } - else - usage(); - } - - dpy = XOpenDisplay(0); - if(!dpy) - error("gridmenu: cannot open dpy\n"); - screen = DefaultScreen(dpy); - root = RootWindow(dpy, screen); - - maxname = read_allitems(); - - /* grab as early as possible, but after reading all items!!! */ - while(XGrabKeyboard(dpy, root, True, GrabModeAsync, - GrabModeAsync, CurrentTime) != GrabSuccess) - usleep(1000); - - /* style */ - loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR); - loadfont(dpy, &brush.font, FONT); - - wa.override_redirect = 1; - wa.background_pixmap = ParentRelative; - wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask; - - mx = my = 0; - mw = DisplayWidth(dpy, screen); - mh = texth(&brush.font); - - win = XCreateWindow(dpy, root, mx, my, mw, mh, 0, - DefaultDepth(dpy, screen), CopyFromParent, - DefaultVisual(dpy, screen), - CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); - XDefineCursor(dpy, win, XCreateFontCursor(dpy, XC_xterm)); - XFlush(dpy); - - /* pixmap */ - brush.gc = XCreateGC(dpy, root, 0, 0); - brush.drawable = XCreatePixmap(dpy, win, mw, mh, - DefaultDepth(dpy, screen)); - XFlush(dpy); - - if(maxname) - cw = textw(&brush.font, maxname) + brush.font.height; - if(cw > mw / 3) - cw = mw / 3; - - if(title) { - tw = textw(&brush.font, title) + brush.font.height; - if(tw > mw / 3) - tw = mw / 3; - } - - cmdw = title ? tw : cw; - - text[0] = 0; - update_items(text); - XMapRaised(dpy, win); - draw_menu(); - XFlush(dpy); - - /* main event loop */ - while(!done && !XNextEvent(dpy, &ev)) { - switch (ev.type) { - case KeyPress: - kpress(&ev.xkey); - break; - case Expose: - if(ev.xexpose.count == 0) - draw_menu(); - break; - default: - break; - } - } - - XUngrabKeyboard(dpy, CurrentTime); - XFreePixmap(dpy, brush.drawable); - XFreeGC(dpy, brush.gc); - XDestroyWindow(dpy, win); - XCloseDisplay(dpy); - - return ret; -} |