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-/*
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- * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
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- * (C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>
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- * See LICENSE file for license details.
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- */
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-
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-#include "config.h"
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-#include "draw.h"
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-#include "util.h"
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-
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-#include <ctype.h>
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-#include <stdlib.h>
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-#include <stdio.h>
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-#include <string.h>
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-#include <unistd.h>
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-#include <X11/cursorfont.h>
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-#include <X11/Xutil.h>
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-#include <X11/keysym.h>
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-
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-typedef struct Item Item;
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-
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-struct Item {
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- Item *next; /* traverses all items */
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- Item *left, *right; /* traverses items matching current search pattern */
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- char *text;
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-};
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-
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-static Display *dpy;
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-static Window root;
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-static Window win;
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-static Bool done = False;
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-
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-static Item *allitem = NULL; /* first of all items */
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-static Item *item = NULL; /* first of pattern matching items */
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-static Item *sel = NULL;
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-static Item *nextoff = NULL;
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-static Item *prevoff = NULL;
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-static Item *curroff = NULL;
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-
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-static int screen, mx, my, mw, mh;
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-static char *title = NULL;
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-static char text[4096];
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-static int ret = 0;
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-static int nitem = 0;
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-static unsigned int cmdw = 0;
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-static unsigned int tw = 0;
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-static unsigned int cw = 0;
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-static const int seek = 30; /* 30px */
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-
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-static Brush brush = {0};
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-
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-static void draw_menu();
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-static void kpress(XKeyEvent * e);
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-
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-static char version[] = "gridmenu - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
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-
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-static void
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-usage() { error("usage: gridmenu [-v] [-t <title>]\n"); }
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-
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-static void
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-update_offsets()
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-{
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- unsigned int tw, w = cmdw + 2 * seek;
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-
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- if(!curroff)
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- return;
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-
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- for(nextoff = curroff; nextoff; nextoff=nextoff->right) {
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- tw = textw(&brush.font, nextoff->text);
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- if(tw > mw / 3)
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- tw = mw / 3;
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- w += tw + brush.font.height;
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- if(w > mw)
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- break;
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- }
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-
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- w = cmdw + 2 * seek;
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- for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) {
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- tw = textw(&brush.font, prevoff->left->text);
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- if(tw > mw / 3)
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- tw = mw / 3;
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- w += tw + brush.font.height;
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- if(w > mw)
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- break;
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- }
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-}
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-
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-static void
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-update_items(char *pattern)
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-{
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- unsigned int plen = strlen(pattern);
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- Item *i, *j;
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-
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- if(!pattern)
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- return;
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-
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- if(!title || *pattern)
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- cmdw = cw;
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- else
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- cmdw = tw;
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-
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- item = j = NULL;
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- nitem = 0;
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-
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- for(i = allitem; i; i=i->next)
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- if(!plen || !strncmp(pattern, i->text, plen)) {
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- if(!j)
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- item = i;
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- else
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- j->right = i;
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- i->left = j;
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- i->right = NULL;
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- j = i;
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- nitem++;
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- }
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- for(i = allitem; i; i=i->next)
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- if(plen && strncmp(pattern, i->text, plen)
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- && strstr(i->text, pattern)) {
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- if(!j)
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- item = i;
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- else
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- j->right = i;
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- i->left = j;
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- i->right = NULL;
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- j = i;
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- nitem++;
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- }
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-
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- curroff = prevoff = nextoff = sel = item;
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-
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- update_offsets();
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-}
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-
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-/* creates brush structs for brush mode drawing */
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-static void
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-draw_menu()
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-{
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- Item *i;
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-
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- brush.x = 0;
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- brush.y = 0;
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- brush.w = mw;
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- brush.h = mh;
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- draw(dpy, &brush, False, 0);
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-
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- /* print command */
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- if(!title || text[0]) {
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- cmdw = cw;
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- if(cmdw && item)
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- brush.w = cmdw;
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- draw(dpy, &brush, False, text);
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- }
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- else {
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- cmdw = tw;
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- brush.w = cmdw;
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- draw(dpy, &brush, False, title);
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- }
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- brush.x += brush.w;
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-
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- if(curroff) {
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- brush.w = seek;
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- draw(dpy, &brush, False, (curroff && curroff->left) ? "<" : 0);
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- brush.x += brush.w;
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-
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- /* determine maximum items */
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- for(i = curroff; i != nextoff; i=i->right) {
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- brush.border = False;
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- brush.w = textw(&brush.font, i->text);
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- if(brush.w > mw / 3)
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- brush.w = mw / 3;
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- brush.w += brush.font.height;
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- if(sel == i) {
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- swap((void **)&brush.fg, (void **)&brush.bg);
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- draw(dpy, &brush, True, i->text);
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- swap((void **)&brush.fg, (void **)&brush.bg);
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- }
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- else
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- draw(dpy, &brush, False, i->text);
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- brush.x += brush.w;
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- }
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-
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- brush.x = mw - seek;
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- brush.w = seek;
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- draw(dpy, &brush, False, nextoff ? ">" : 0);
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- }
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- XCopyArea(dpy, brush.drawable, win, brush.gc, 0, 0, mw, mh, 0, 0);
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- XFlush(dpy);
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-}
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-
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-static void
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-kpress(XKeyEvent * e)
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-{
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- KeySym ksym;
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- char buf[32];
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- int num, prev_nitem;
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- unsigned int i, len = strlen(text);
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-
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- buf[0] = 0;
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- num = XLookupString(e, buf, sizeof(buf), &ksym, 0);
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-
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- if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
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- || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
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- || IsPrivateKeypadKey(ksym))
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- return;
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-
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- /* first check if a control mask is omitted */
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- if(e->state & ControlMask) {
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- switch (ksym) {
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- default: /* ignore other control sequences */
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- return;
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- break;
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- case XK_h:
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- ksym = XK_BackSpace;
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- break;
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- case XK_U:
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- case XK_u:
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- text[0] = 0;
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- update_items(text);
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- draw_menu();
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- return;
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- break;
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- case XK_bracketleft:
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- ksym = XK_Escape;
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- break;
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- }
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- }
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- switch(ksym) {
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- case XK_Left:
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- if(!(sel && sel->left))
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- return;
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- sel=sel->left;
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- if(sel->right == curroff) {
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- curroff = prevoff;
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- update_offsets();
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- }
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- break;
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- case XK_Tab:
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- if(!sel)
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- return;
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- strncpy(text, sel->text, sizeof(text));
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- update_items(text);
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- break;
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- case XK_Right:
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- if(!(sel && sel->right))
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- return;
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- sel=sel->right;
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- if(sel == nextoff) {
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- curroff = nextoff;
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- update_offsets();
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- }
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- break;
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- case XK_Return:
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- if(e->state & ShiftMask) {
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- if(text)
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- fprintf(stdout, "%s", text);
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- }
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- else if(sel)
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- fprintf(stdout, "%s", sel->text);
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- else if(text)
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- fprintf(stdout, "%s", text);
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- fflush(stdout);
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- done = True;
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- break;
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- case XK_Escape:
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- ret = 1;
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- done = True;
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- break;
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- case XK_BackSpace:
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- if((i = len)) {
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- prev_nitem = nitem;
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- do {
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- text[--i] = 0;
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- update_items(text);
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- } while(i && nitem && prev_nitem == nitem);
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- update_items(text);
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- }
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- break;
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- default:
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- if(num && !iscntrl((int) buf[0])) {
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- buf[num] = 0;
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- if(len > 0)
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- strncat(text, buf, sizeof(text));
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- else
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- strncpy(text, buf, sizeof(text));
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- update_items(text);
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- }
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- }
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- draw_menu();
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-}
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-
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-static char *
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-read_allitems()
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-{
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- static char *maxname = NULL;
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- char *p, buf[1024];
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- unsigned int len = 0, max = 0;
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- Item *i, *new;
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-
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- i = 0;
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- while(fgets(buf, sizeof(buf), stdin)) {
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- len = strlen(buf);
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- if (buf[len - 1] == '\n')
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- buf[len - 1] = 0;
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- p = estrdup(buf);
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- if(max < len) {
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- maxname = p;
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- max = len;
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- }
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-
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- new = emalloc(sizeof(Item));
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- new->next = new->left = new->right = NULL;
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- new->text = p;
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- if(!i)
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- allitem = new;
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- else
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- i->next = new;
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- i = new;
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- }
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-
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- return maxname;
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-}
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-
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-int
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-main(int argc, char *argv[])
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-{
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- int i;
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- XSetWindowAttributes wa;
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- char *maxname;
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- XEvent ev;
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-
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- /* command line args */
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- for(i = 1; i < argc; i++) {
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- if (argv[i][0] == '-')
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- switch (argv[i][1]) {
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- case 'v':
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- fprintf(stdout, "%s", version);
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- exit(0);
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- break;
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|
|
- 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;
|
|
|
|
|
-}
|
|
|