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-rw-r--r--gridmenu.c498
1 files changed, 498 insertions, 0 deletions
diff --git a/gridmenu.c b/gridmenu.c
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index 00000000..962fa224
--- /dev/null
+++ b/gridmenu.c
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+/*
+ * (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 <ctype.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include <X11/Xlib.h>
+#include <X11/cursorfont.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+
+#include <blitz.h>
+#include <cext.h>
+
+typedef struct Item Item;
+
+struct Item {
+ Item *next; /* traverses all items */
+ Item *left, *right; /* traverses items matching current search pattern */
+ char *text;
+};
+
+static char *title = nil;
+static Bool done = False;
+static int ret = 0;
+static char text[4096];
+static BlitzColor selcolor;
+static BlitzColor normcolor;
+static Window win;
+static XRectangle mrect;
+static Item *allitem = nil; /* first of all items */
+static Item *item = nil; /* first of pattern matching items */
+static Item *sel = nil;
+static Item *nextoff = nil;
+static Item *prevoff = nil;
+static Item *curroff = nil;
+static int nitem = 0;
+static unsigned int cmdw = 0;
+static unsigned int twidth = 0;
+static unsigned int cwidth = 0;
+static Blitz blz = {0};
+static BlitzBrush brush = {0};
+static const int seek = 30; /* 30px */
+
+static void draw_menu(void);
+static void handle_kpress(XKeyEvent * e);
+
+static char version[] = "wmiimenu - " VERSION ", (C)opyright MMIV-MMVI Anselm R. Garbe\n";
+
+static void
+usage()
+{
+ fprintf(stderr, "%s", "usage: wmiimenu [-v] [-t <title>]\n");
+ exit(1);
+}
+
+static void
+update_offsets()
+{
+ unsigned int tw, w = cmdw + 2 * seek;
+
+ if(!curroff)
+ return;
+
+ for(nextoff = curroff; nextoff; nextoff=nextoff->right) {
+ tw = blitz_textwidth(brush.font, nextoff->text);
+ if(tw > mrect.width / 3)
+ tw = mrect.width / 3;
+ w += tw + mrect.height;
+ if(w > mrect.width)
+ break;
+ }
+
+ w = cmdw + 2 * seek;
+ for(prevoff = curroff; prevoff && prevoff->left; prevoff=prevoff->left) {
+ tw = blitz_textwidth(brush.font, prevoff->left->text);
+ if(tw > mrect.width / 3)
+ tw = mrect.width / 3;
+ w += tw + mrect.height;
+ if(w > mrect.width)
+ break;
+ }
+}
+
+static void
+update_items(char *pattern)
+{
+ unsigned int plen = strlen(pattern);
+ Item *i, *j;
+
+ if(!pattern)
+ return;
+
+ if(!title || *pattern)
+ cmdw = cwidth;
+ else
+ cmdw = twidth;
+
+ item = j = nil;
+ 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 = nil;
+ 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 = nil;
+ j = i;
+ nitem++;
+ }
+
+ curroff = prevoff = nextoff = sel = item;
+
+ update_offsets();
+}
+
+/* creates brush structs for brush mode drawing */
+static void
+draw_menu()
+{
+ unsigned int offx = 0;
+
+ Item *i;
+
+ brush.align = WEST;
+
+ brush.rect = mrect;
+ brush.rect.x = 0;
+ brush.rect.y = 0;
+ brush.color = normcolor;
+ brush.border = False;
+ blitz_draw_tile(&brush);
+
+ /* print command */
+ if(!title || text[0]) {
+ brush.color = normcolor;
+ cmdw = cwidth;
+ if(cmdw && item)
+ brush.rect.width = cmdw;
+ blitz_draw_label(&brush, text);
+ }
+ else {
+ cmdw = twidth;
+ brush.color = selcolor;
+ brush.rect.width = cmdw;
+ blitz_draw_label(&brush, title);
+ }
+ offx += brush.rect.width;
+
+ brush.align = CENTER;
+ if(curroff) {
+ brush.color = normcolor;
+ brush.rect.x = offx;
+ brush.rect.width = seek;
+ offx += brush.rect.width;
+ blitz_draw_label(&brush, (curroff && curroff->left) ? "<" : nil);
+
+ /* determine maximum items */
+ for(i = curroff; i != nextoff; i=i->right) {
+ brush.color = normcolor;
+ brush.border = False;
+ brush.rect.x = offx;
+ brush.rect.width = blitz_textwidth(brush.font, i->text);
+ if(brush.rect.width > mrect.width / 3)
+ brush.rect.width = mrect.width / 3;
+ brush.rect.width += mrect.height;
+ if(sel == i) {
+ brush.color = selcolor;
+ brush.border = True;
+ }
+ blitz_draw_label(&brush, i->text);
+ offx += brush.rect.width;
+ }
+
+ brush.color = normcolor;
+ brush.border = False;
+ brush.rect.x = mrect.width - seek;
+ brush.rect.width = seek;
+ blitz_draw_label(&brush, nextoff ? ">" : nil);
+ }
+ XCopyArea(blz.dpy, brush.drawable, win, brush.gc, 0, 0, mrect.width,
+ mrect.height, 0, 0);
+ XSync(blz.dpy, False);
+}
+
+static void
+handle_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) {
+ case XK_H:
+ case XK_h:
+ ksym = XK_BackSpace;
+ break;
+ case XK_I:
+ case XK_i:
+ ksym = XK_Tab;
+ break;
+ case XK_J:
+ case XK_j:
+ ksym = XK_Return;
+ break;
+ case XK_N:
+ case XK_n:
+ ksym = XK_Right;
+ break;
+ case XK_P:
+ case XK_p:
+ ksym = XK_Left;
+ break;
+ case XK_U:
+ case XK_u:
+ text[0] = 0;
+ update_items(text);
+ draw_menu();
+ return;
+ break;
+ case XK_bracketleft:
+ ksym = XK_Escape;
+ break;
+ default: /* ignore other control sequences */
+ return;
+ 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;
+ cext_strlcpy(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 == 1) && !iscntrl((int) buf[0])) {
+ buf[num] = 0;
+ if(len > 0)
+ cext_strlcat(text, buf, sizeof(text));
+ else
+ cext_strlcpy(text, buf, sizeof(text));
+ update_items(text);
+ }
+ }
+ draw_menu();
+}
+
+static char *
+read_allitems()
+{
+ static char *maxname = nil;
+ char *p, buf[1024];
+ unsigned int len = 0, max = 0;
+ Item *i, *new;
+
+ i = nil;
+ while(fgets(buf, sizeof(buf), stdin)) {
+ len = strlen(buf);
+ if (buf[len - 1] == '\n')
+ buf[len - 1] = 0;
+ p = cext_estrdup(buf);
+ if(max < len) {
+ maxname = p;
+ max = len;
+ }
+
+ new = cext_emalloc(sizeof(Item));
+ new->next = new->left = new->right = nil;
+ 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, *p;
+ BlitzFont font = {0};
+ GC gc;
+ Drawable pmap;
+ 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();
+ }
+
+ blz.dpy = XOpenDisplay(0);
+ if(!blz.dpy) {
+ fprintf(stderr, "%s", "wmiimenu: cannot open dpy\n");
+ exit(1);
+ }
+ blz.screen = DefaultScreen(blz.dpy);
+ blz.root = RootWindow(blz.dpy, blz.screen);
+
+ maxname = read_allitems();
+
+ /* grab as early as possible, but after reading all items!!! */
+ while(XGrabKeyboard
+ (blz.dpy, blz.root, True, GrabModeAsync,
+ GrabModeAsync, CurrentTime) != GrabSuccess)
+ usleep(1000);
+
+ font.fontstr = getenv("WMII_FONT");
+ if (!font.fontstr)
+ font.fontstr = cext_estrdup(BLITZ_FONT);
+ blitz_loadfont(&blz, &font);
+
+ if((p = getenv("WMII_NORMCOLORS")))
+ cext_strlcpy(normcolor.colstr, p, sizeof(normcolor.colstr));
+ if(strlen(normcolor.colstr) != 23)
+ cext_strlcpy(normcolor.colstr, BLITZ_NORMCOLORS, sizeof(normcolor.colstr));
+ blitz_loadcolor(&blz, &normcolor);
+
+ if((p = getenv("WMII_SELCOLORS")))
+ cext_strlcpy(selcolor.colstr, p, sizeof(selcolor.colstr));
+ if(strlen(selcolor.colstr) != 23)
+ cext_strlcpy(selcolor.colstr, BLITZ_SELCOLORS, sizeof(selcolor.colstr));
+ blitz_loadcolor(&blz, &selcolor);
+
+ wa.override_redirect = 1;
+ wa.background_pixmap = ParentRelative;
+ wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask
+ | SubstructureRedirectMask | SubstructureNotifyMask;
+
+ mrect.width = DisplayWidth(blz.dpy, blz.screen);
+ mrect.height = font.ascent + font.descent + 4;
+ mrect.y = DisplayHeight(blz.dpy, blz.screen) - mrect.height;
+ mrect.x = 0;
+
+ win = XCreateWindow(blz.dpy, blz.root, mrect.x, mrect.y,
+ mrect.width, mrect.height, 0, DefaultDepth(blz.dpy, blz.screen),
+ CopyFromParent, DefaultVisual(blz.dpy, blz.screen),
+ CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
+ XDefineCursor(blz.dpy, win, XCreateFontCursor(blz.dpy, XC_xterm));
+ XSync(blz.dpy, False);
+
+ /* pixmap */
+ gc = XCreateGC(blz.dpy, win, 0, 0);
+ pmap = XCreatePixmap(blz.dpy, win, mrect.width, mrect.height,
+ DefaultDepth(blz.dpy, blz.screen));
+
+ XSync(blz.dpy, False);
+
+ brush.blitz = &blz;
+ brush.color = normcolor;
+ brush.drawable = pmap;
+ brush.gc = gc;
+ brush.font = &font;
+
+ if(maxname)
+ cwidth = blitz_textwidth(brush.font, maxname) + mrect.height;
+ if(cwidth > mrect.width / 3)
+ cwidth = mrect.width / 3;
+
+ if(title) {
+ twidth = blitz_textwidth(brush.font, title) + mrect.height;
+ if(twidth > mrect.width / 3)
+ twidth = mrect.width / 3;
+ }
+
+ cmdw = title ? twidth : cwidth;
+
+ text[0] = 0;
+ update_items(text);
+ XMapRaised(blz.dpy, win);
+ draw_menu();
+ XSync(blz.dpy, False);
+
+ /* main event loop */
+ while(!XNextEvent(blz.dpy, &ev)) {
+ switch (ev.type) {
+ case KeyPress:
+ handle_kpress(&ev.xkey);
+ break;
+ case Expose:
+ if(ev.xexpose.count == 0) {
+ draw_menu();
+ }
+ break;
+ default:
+ break;
+ }
+ if(done)
+ break;
+ }
+
+ XUngrabKeyboard(blz.dpy, CurrentTime);
+ XFreePixmap(blz.dpy, pmap);
+ XFreeGC(blz.dpy, gc);
+ XDestroyWindow(blz.dpy, win);
+ XCloseDisplay(blz.dpy);
+
+ return ret;
+}
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