XftColor border;
XftColor separator;
- Drawable d;
GC gc;
XftFont *font;
};
/* menu geometry structure */
-struct MenuGeometry {
- int itemb; /* item border */
- int itemw; /* item width */
- int itemh; /* item height */
- int border; /* window border width */
- int separator; /* menu separator width */
-};
-
-/* screen geometry structure */
-struct ScreenGeometry {
+struct Geometry {
+ int border; /* window border width */
+ int separator; /* menu separator width */
+ int itemw, itemh; /* item width and height */
int cursx, cursy; /* cursor position */
int screenw, screenh; /* screen width and height */
};
Window win; /* menu window to map on the screen */
};
-/* function declarations */
-static void getcolor(const char *s, XftColor *color);
+/* functions declarations */
static void getresources(void);
+static void getcolor(const char *s, XftColor *color);
static void setupdc(void);
-static void setupgeom(void);
+static void calcgeom(struct Geometry *geom);
static struct Item *allocitem(const char *label, const char *output);
static struct Menu *allocmenu(struct Menu *parent, struct Item *list, unsigned level);
-static struct Menu *getmenu(Window win);
+static struct Menu *buildmenutree(unsigned level, const char *label, const char *output);
+static struct Menu *parsestdin(void);
+static void calcmenu(struct Geometry *geom, struct Menu *menu);
+static void grabpointer(void);
+static void grabkeyboard(void);
+static struct Menu *getmenu(struct Menu *currmenu, Window win);
static struct Item *getitem(struct Menu *menu, int y);
+static void mapmenu(struct Menu *currmenu);
static void drawseparator(struct Menu *menu, struct Item *item);
static void drawitem(struct Menu *menu, struct Item *item, XftColor *color);
-static void drawmenu(void);
-static void calcscreengeom(void);
-static void calcmenu(struct Menu *menu);
-static void grabpointer(void);
-static void grabkeyboard(void);
-static void setcurrmenu(struct Menu *currmenu_new);
-static void parsestdin(void);
-static void run(void);
-static void freewindow(struct Menu *menu);
+static void drawmenu(struct Menu *currmenu);
+static struct Item *itemcycle(struct Menu *currmenu, int direction);
+static void run(struct Menu *currmenu);
+static void freemenu(struct Menu *menu);
static void cleanup(void);
static void usage(void);
-/* X variables */
-static Colormap colormap;
+/* X stuff */
static Display *dpy;
+static int screen;
static Visual *visual;
static Window rootwin;
-static int screen;
+static Colormap colormap;
static struct DC dc;
-static struct ScreenGeometry screengeom;
-
-/* menu variables */
-static struct Menu *rootmenu = NULL;
-static struct Menu *currmenu = NULL;
-static struct MenuGeometry geom;
#include "config.h"
+/* xmenu: generate menu from stdin and print selected entry to stdout */
int
main(int argc, char *argv[])
{
+ struct Menu *rootmenu;
+ struct Geometry geom;
int ch;
while ((ch = getopt(argc, argv, "")) != -1) {
argc -= optind;
argv += optind;
+ if (argc != 0)
+ usage();
+
/* open connection to server and set X variables */
if ((dpy = XOpenDisplay(NULL)) == NULL)
errx(1, "cannot open display");
/* setup */
getresources();
setupdc();
- setupgeom();
+ calcgeom(&geom);
/* generate menus and recalculate them */
- parsestdin();
+ rootmenu = parsestdin();
if (rootmenu == NULL)
errx(1, "no menu generated");
- calcscreengeom();
- calcmenu(rootmenu);
+ calcmenu(&geom, rootmenu);
/* grab mouse and keyboard */
grabpointer();
grabkeyboard();
/* run event loop */
- run();
+ run(rootmenu);
+ /* freeing stuff */
+ freemenu(rootmenu);
cleanup();
+
return 0;
}
dc.gc = XCreateGC(dpy, rootwin, 0, NULL);
}
-/* init menu geometry values */
+/* calculate menu and screen geometry */
static void
-setupgeom(void)
+calcgeom(struct Geometry *geom)
{
- geom.itemb = padding_pixels;
- geom.itemh = dc.font->height + padding_pixels * 2;
- geom.itemw = width_pixels;
- geom.border = border_pixels;
- geom.separator = separator_pixels;
+ Window w1, w2; /* unused variables */
+ int a, b; /* unused variables */
+ unsigned mask; /* unused variable */
+
+ XQueryPointer(dpy, rootwin, &w1, &w2, &geom->cursx, &geom->cursy, &a, &b, &mask);
+ geom->screenw = DisplayWidth(dpy, screen);
+ geom->screenh = DisplayHeight(dpy, screen);
+ geom->itemh = dc.font->height + padding_pixels * 2;
+ geom->itemw = width_pixels;
+ geom->border = border_pixels;
+ geom->separator = separator_pixels;
}
/* allocate an item */
if ((item = malloc(sizeof *item)) == NULL)
err(1, "malloc");
- if (*label == '\0') {
+ if (label == NULL) {
item->label = NULL;
item->output = NULL;
} else {
if ((item->label = strdup(label)) == NULL)
err(1, "strdup");
- if ((item->output = strdup(output)) == NULL)
- err(1, "strdup");
+ if (label == output) {
+ item->output = item->label;
+ } else {
+ if ((item->output = strdup(output)) == NULL)
+ err(1, "strdup");
+ }
}
item->y = 0;
- item->h = item->label ? geom.itemh : geom.separator;
+ item->h = 0;
if (item->label == NULL)
item->labellen = 0;
else
menu->list = list;
menu->caller = NULL;
menu->selected = NULL;
- menu->w = geom.itemw;
+ menu->w = 0; /* calculated by calcmenu() */
menu->h = 0; /* calculated by calcmenu() */
menu->x = 0; /* calculated by calcmenu() */
menu->y = 0; /* calculated by calcmenu() */
swa.save_under = True; /* pop-up windows should save_under*/
swa.event_mask = ExposureMask | KeyPressMask | ButtonPressMask | ButtonReleaseMask
| PointerMotionMask | LeaveWindowMask;
- menu->win = XCreateWindow(dpy, rootwin, 0, 0, geom.itemw, geom.itemh, geom.border,
+ menu->win = XCreateWindow(dpy, rootwin, 0, 0, 1, 1, 0,
CopyFromParent, CopyFromParent, CopyFromParent,
CWOverrideRedirect | CWBackPixel |
CWBorderPixel | CWEventMask | CWSaveUnder,
return menu;
}
-/* create menus and items from the stdin */
-static void
-parsestdin(void)
+/* build the menu tree */
+static struct Menu *
+buildmenutree(unsigned level, const char *label, const char *output)
{
- char *s, buf[BUFSIZ];
- char *label, *output;
- unsigned level = 0;
+ static struct Menu *prevmenu = NULL; /* menu the previous item was added to */
+ static struct Menu *rootmenu = NULL; /* menu to be returned */
+ struct Item *curritem = NULL; /* item currently being read */
+ struct Item *item; /* dummy item for loops */
+ struct Menu *menu; /* dummy menu for loops */
unsigned i;
- struct Item *curritem = NULL; /* item currently being read */
- struct Menu *prevmenu = NULL; /* menu the previous item was added to */
- struct Item *item; /* dummy item for for loops */
- struct Menu *menu; /* dummy menu for for loops */
- size_t count = 0; /* number of items in the current menu */
-
- while (fgets(buf, BUFSIZ, stdin) != NULL) {
- level = 0;
- s = buf;
-
- while (*s == '\t') {
- level++;
- s++;
- }
-
- label = output = s;
-
- while (*s != '\0' && *s != '\t' && *s != '\n')
- s++;
-
- while (*s == '\t')
- *s++ = '\0';
-
- if (*s != '\0' && *s != '\n')
- output = s;
-
- while (*s != '\0' && *s != '\n')
- s++;
-
- if (*s == '\n')
- *s = '\0';
-
- curritem = allocitem(label, output);
-
- if (prevmenu == NULL) { /* there is no menu yet */
- menu = allocmenu(NULL, curritem, level);
- rootmenu = menu;
- prevmenu = menu;
- count = 1;
- curritem->prev = NULL;
- curritem->next = NULL;
- } else if (level < prevmenu->level) { /* item is continuation of a parent menu*/
- for (menu = prevmenu, i = level;
- menu != NULL && i < prevmenu->level;
- menu = menu->parent, i++)
- ;
- if (menu == NULL)
- errx(1, "reached NULL menu");
-
- for (item = menu->list; item->next != NULL; item = item->next)
- ;
+ /* create the item */
+ curritem = allocitem(label, output);
+
+ /* put the item in the menu tree */
+ if (prevmenu == NULL) { /* there is no menu yet */
+ menu = allocmenu(NULL, curritem, level);
+ rootmenu = menu;
+ prevmenu = menu;
+ curritem->prev = NULL;
+ } else if (level < prevmenu->level) { /* item is continuation of a parent menu */
+ /* go up the menu tree until find the menu this item continues */
+ for (menu = prevmenu, i = level;
+ menu != NULL && i != prevmenu->level;
+ menu = menu->parent, i++)
+ ;
+ if (menu == NULL)
+ errx(1, "reached NULL menu");
- item->next = curritem;
+ /* find last item in the new menu */
+ for (item = menu->list; item->next != NULL; item = item->next)
+ ;
- curritem->prev = item;
- curritem->next = NULL;
+ prevmenu = menu;
+ item->next = curritem;
+ curritem->prev = item;
+ } else if (level == prevmenu->level) { /* item is a continuation of current menu */
+ /* find last item in the previous menu */
+ for (item = prevmenu->list; item->next != NULL; item = item->next)
+ ;
- prevmenu = menu;
- } else if (level == prevmenu->level) { /* item is a continuation of current menu */
- for (item = prevmenu->list; item->next != NULL; item = item->next)
- ;
- item->next = curritem;
+ item->next = curritem;
+ curritem->prev = item;
+ } else if (level > prevmenu->level) { /* item begins a new menu */
+ menu = allocmenu(prevmenu, curritem, level);
- curritem->prev = item;
- curritem->next = NULL;
+ /* find last item in the previous menu */
+ for (item = prevmenu->list; item->next != NULL; item = item->next)
+ ;
- } else if (level > prevmenu->level) { /* item begins a new menu */
- menu = allocmenu(prevmenu, curritem, level);
+ prevmenu = menu;
+ menu->caller = item;
+ item->submenu = menu;
+ curritem->prev = NULL;
+ }
- for (item = prevmenu->list; item->next != NULL; item = item->next)
- ;
+ return rootmenu;
+}
- item->submenu = menu;
- menu->caller = item;
+/* create menus and items from the stdin */
+static struct Menu *
+parsestdin(void)
+{
+ struct Menu *rootmenu;
+ char *s, buf[BUFSIZ];
+ char *label, *output;
+ unsigned level = 0;
- curritem->prev = NULL;
- curritem->next = NULL;
+ rootmenu = NULL;
- prevmenu = menu;
+ while (fgets(buf, BUFSIZ, stdin) != NULL) {
+ /* get the indentation level */
+ level = strspn(buf, "\t");
+
+ /* get the label */
+ s = level + buf;
+ label = strtok(s, "\t\n");
+
+ /* get the output */
+ output = strtok(NULL, "\n");
+ if (output == NULL) {
+ output = label;
+ } else {
+ while (*output == '\t')
+ output++;
}
- count++;
- }
-}
-/* calculate screen geometry */
-static void
-calcscreengeom(void)
-{
- Window w1, w2; /* unused variables */
- int a, b; /* unused variables */
- unsigned mask; /* unused variable */
+ rootmenu = buildmenutree(level, label, output);
+ }
- XQueryPointer(dpy, rootwin, &w1, &w2, &screengeom.cursx, &screengeom.cursy, &a, &b, &mask);
- screengeom.screenw = DisplayWidth(dpy, screen);
- screengeom.screenh = DisplayHeight(dpy, screen);
+ return rootmenu;
}
/* recursivelly calculate menu geometry and set window hints */
static void
-calcmenu(struct Menu *menu)
+calcmenu(struct Geometry *geom, struct Menu *menu)
{
static XClassHint classh = {PROGNAME, PROGNAME};
XWindowChanges changes;
XGlyphInfo ext;
struct Item *item;
int labelwidth;
+ int width, height;
/* calculate items positions and menu width and height */
- menu->w = geom.itemw;
+ menu->w = geom->itemw;
for (item = menu->list; item != NULL; item = item->next) {
item->y = menu->h;
+
if (item->label == NULL) /* height for separator item */
- menu->h += geom.separator;
+ item->h = geom->separator;
else
- menu->h += geom.itemh;
+ item->h = geom->itemh;
+ menu->h += item->h;
XftTextExtentsUtf8(dpy, dc.font, (XftChar8 *)item->label,
item->labellen, &ext);
}
/* calculate menu's x and y positions */
+ width = menu->w + geom->border * 2;
+ height = menu->h + geom->border * 2;
if (menu->parent == NULL) { /* if root menu, calculate in respect to cursor */
- if (screengeom.screenw - screengeom.cursx >= menu->w)
- menu->x = screengeom.cursx;
- else if (screengeom.cursx > menu->w)
- menu->x = screengeom.cursx - menu->w;
-
- if (screengeom.screenh - screengeom.cursy >= menu->h)
- menu->y = screengeom.cursy;
- else if (screengeom.screenh > menu->h)
- menu->y = screengeom.screenh - menu->h;
+ if (geom->screenw - geom->cursx >= menu->w)
+ menu->x = geom->cursx;
+ else if (geom->cursx > width)
+ menu->x = geom->cursx - width;
+
+ if (geom->screenh - geom->cursy >= height)
+ menu->y = geom->cursy;
+ else if (geom->screenh > height)
+ menu->y = geom->screenh - height;
} else { /* else, calculate in respect to parent menu */
- if (screengeom.screenw - (menu->parent->x + menu->parent->w + geom.border) >= menu->w)
- menu->x = menu->parent->x + menu->parent->w + geom.border;
- else if (menu->parent->x > menu->w + geom.border)
- menu->x = menu->parent->x - menu->w - geom.border;
+ if (geom->screenw - (menu->parent->x + menu->parent->w + geom->border) >= width)
+ menu->x = menu->parent->x + menu->parent->w + geom->border;
+ else if (menu->parent->x > menu->w + geom->border)
+ menu->x = menu->parent->x - menu->w - geom->border;
- if (screengeom.screenh - (menu->caller->y + menu->parent->y) > menu->h)
+ if (geom->screenh - (menu->caller->y + menu->parent->y) > height)
menu->y = menu->caller->y + menu->parent->y;
- else if (screengeom.screenh - menu->parent->y > menu->h)
+ else if (geom->screenh - menu->parent->y > height)
menu->y = menu->parent->y;
- else if (screengeom.screenh > menu->h)
- menu->y = screengeom.screenh - menu->h;
+ else if (geom->screenh > height)
+ menu->y = geom->screenh - height;
}
/* update menu geometry */
+ changes.border_width = geom->border;
changes.height = menu->h;
changes.width = menu->w;
changes.x = menu->x;
changes.y = menu->y;
- XConfigureWindow(dpy, menu->win, CWWidth | CWHeight | CWX | CWY, &changes);
+ XConfigureWindow(dpy, menu->win, CWBorderWidth | CWWidth | CWHeight | CWX | CWY, &changes);
/* set window manager hints */
sizeh.flags = PMaxSize | PMinSize;
/* calculate positions of submenus */
for (item = menu->list; item != NULL; item = item->next) {
if (item->submenu != NULL)
- calcmenu(item->submenu);
+ calcmenu(geom, item->submenu);
}
}
/* get menu of given window */
static struct Menu *
-getmenu(Window win)
+getmenu(struct Menu *currmenu, Window win)
{
struct Menu *menu;
return NULL;
}
-/* set currentmenu to menu, umap previous menus and map current menu and its parents */
+/* umap previous menus and map current menu and its parents */
static void
-setcurrmenu(struct Menu *currmenu_new)
+mapmenu(struct Menu *currmenu)
{
+ static struct Menu *prevmenu = NULL;
struct Menu *menu, *menu_;
- struct Item *item;
struct Menu *lcamenu; /* lowest common ancestor menu */
unsigned minlevel; /* level of the closest to root menu */
unsigned maxlevel; /* level of the closest to root menu */
- /* do not update currmenu to itself */
- if (currmenu_new == currmenu)
+ /* do not remap current menu if it wasn't updated*/
+ if (prevmenu == currmenu)
return;
- /* if there was no currmenu, skip calculations */
- if (currmenu == NULL) {
- currmenu = currmenu_new;
+ /* if this is the first time mapping, skip calculations */
+ if (prevmenu == NULL) {
XMapWindow(dpy, currmenu->win);
+ prevmenu = currmenu;
return;
}
/* find lowest common ancestor menu */
- lcamenu = rootmenu;
- minlevel = MIN(currmenu_new->level, currmenu->level);
- maxlevel = MAX(currmenu_new->level, currmenu->level);
- if (currmenu_new->level == maxlevel) {
- menu = currmenu_new;
- menu_ = currmenu;
- } else {
+ minlevel = MIN(currmenu->level, prevmenu->level);
+ maxlevel = MAX(currmenu->level, prevmenu->level);
+ if (currmenu->level == maxlevel) {
menu = currmenu;
- menu_ = currmenu_new;
+ menu_ = prevmenu;
+ } else {
+ menu = prevmenu;
+ menu_ = currmenu;
}
while (menu->level > minlevel)
menu = menu->parent;
lcamenu = menu;
/* unmap menus from currmenu (inclusive) until lcamenu (exclusive) */
- for (menu = currmenu; menu != lcamenu; menu = menu->parent) {
+ for (menu = prevmenu; menu != lcamenu; menu = menu->parent) {
menu->selected = NULL;
XUnmapWindow(dpy, menu->win);
}
- currmenu = currmenu_new;
-
/* map menus from currmenu (inclusive) until lcamenu (exclusive) */
- item = NULL;
for (menu = currmenu; menu != lcamenu; menu = menu->parent) {
XMapWindow(dpy, menu->win);
}
+
+ prevmenu = currmenu;
}
/* draw separator item */
static void
drawseparator(struct Menu *menu, struct Item *item)
{
- int linex, liney, linew;
+ int y;
- linex = dc.font->height;
- liney = item->y + item->h/2;
- linew = menu->w - dc.font->height;
+ y = item->y + item->h/2;
XSetForeground(dpy, dc.gc, dc.separator.pixel);
- XDrawLine(dpy, menu->pixmap, dc.gc, linex, liney, linew, liney);
+ XDrawLine(dpy, menu->pixmap, dc.gc, 0, y, menu->w, y);
}
/* draw regular item */
{
int x, y;
- x = 0 + dc.font->height;
- y = item->y + dc.font->height + geom.itemb / 2;
+ x = dc.font->height;
+ y = item->y + item->h/2 + dc.font->ascent/2 - 1;
XSetForeground(dpy, dc.gc, color[ColorFG].pixel);
XftDrawStringUtf8(menu->draw, &color[ColorFG], dc.font,
x, y, item->label, item->labellen);
/* draw triangle, if item contains a submenu */
if (item->submenu != NULL) {
- x = menu->w - dc.font->height + geom.itemb - 1;
- y = item->y + geom.itemh/2 - triangle_height/2 - 1;
+ x = menu->w - dc.font->height/2 - triangle_width/2;
+ y = item->y + item->h/2 - triangle_height/2 - 1;
XPoint triangle[] = {
{x, y},
/* draw items of the current menu and of its ancestors */
static void
-drawmenu(void)
+drawmenu(struct Menu *currmenu)
{
struct Menu *menu;
struct Item *item;
/* cycle through the items; non-zero direction is next, zero is prev */
static struct Item *
-itemcycle(int direction)
+itemcycle(struct Menu *currmenu, int direction)
{
struct Item *item;
struct Item *lastitem;
/* run event loop */
static void
-run(void)
+run(struct Menu *currmenu)
{
struct Menu *menu;
struct Item *item;
KeySym ksym;
XEvent ev;
- setcurrmenu(rootmenu);
+ mapmenu(currmenu);
while (!XNextEvent(dpy, &ev)) {
switch(ev.type) {
case Expose:
if (ev.xexpose.count == 0)
- drawmenu();
+ drawmenu(currmenu);
break;
case MotionNotify:
- menu = getmenu(ev.xbutton.window);
+ menu = getmenu(currmenu, ev.xbutton.window);
item = getitem(menu, ev.xbutton.y);
- if (menu == NULL || item == NULL)
+ if (menu == NULL || item == NULL || previtem == item)
break;
- if (previtem != item) {
- menu->selected = item;
- if (item->submenu != NULL)
- setcurrmenu(item->submenu);
- else
- setcurrmenu(menu);
- previtem = item;
- drawmenu();
+ previtem = item;
+ menu->selected = item;
+ if (item->submenu != NULL) {
+ currmenu = item->submenu;
+ currmenu->selected = NULL;
+ } else {
+ currmenu = menu;
}
+ mapmenu(currmenu);
+ drawmenu(currmenu);
break;
case ButtonRelease:
- menu = getmenu(ev.xbutton.window);
+ menu = getmenu(currmenu, ev.xbutton.window);
item = getitem(menu, ev.xbutton.y);
if (menu == NULL || item == NULL)
break;
if (item->label == NULL)
break; /* ignore separators */
if (item->submenu != NULL) {
- setcurrmenu(item->submenu);
+ currmenu = item->submenu;
} else {
printf("%s\n", item->output);
return;
}
+ mapmenu(currmenu);
currmenu->selected = currmenu->list;
- drawmenu();
+ drawmenu(currmenu);
break;
case ButtonPress:
- menu = getmenu(ev.xbutton.window);
+ menu = getmenu(currmenu, ev.xbutton.window);
if (menu == NULL)
return;
break;
ksym = XkbKeycodeToKeysym(dpy, ev.xkey.keycode, 0, 0);
/* esc closes xmenu when current menu is the root menu */
- if (ksym == XK_Escape && currmenu == rootmenu)
+ if (ksym == XK_Escape && currmenu->parent == NULL)
return;
/* Shift-Tab = ISO_Left_Tab */
/* cycle through menu */
item = NULL;
if (ksym == XK_ISO_Left_Tab || ksym == XK_Up) {
- item = itemcycle(ITEMPREV);
+ item = itemcycle(currmenu, ITEMPREV);
} else if (ksym == XK_Tab || ksym == XK_Down) {
- item = itemcycle(ITEMNEXT);
+ item = itemcycle(currmenu, ITEMNEXT);
} else if ((ksym == XK_Return || ksym == XK_Right) &&
currmenu->selected != NULL) {
item = currmenu->selected;
} else if ((ksym == XK_Escape || ksym == XK_Left) &&
currmenu->parent != NULL) {
item = currmenu->parent->selected;
- setcurrmenu(currmenu->parent);
+ currmenu = currmenu->parent;
+ mapmenu(currmenu);
} else
break;
currmenu->selected = item;
- drawmenu();
+ drawmenu(currmenu);
break;
case LeaveNotify:
previtem = NULL;
currmenu->selected = NULL;
- drawmenu();
+ drawmenu(currmenu);
break;
}
}
/* recursivelly free pixmaps and destroy windows */
static void
-freewindow(struct Menu *menu)
+freemenu(struct Menu *menu)
{
struct Item *item;
+ struct Item *tmp;
- for (item = menu->list; item != NULL; item = item->next)
+ item = menu->list;
+ while (item != NULL) {
if (item->submenu != NULL)
- freewindow(item->submenu);
+ freemenu(item->submenu);
+ tmp = item;
+ item = item->next;
+ if (tmp->label != tmp->output)
+ free(tmp->label);
+ free(tmp->output);
+ free(tmp);
+ }
XFreePixmap(dpy, menu->pixmap);
XftDrawDestroy(menu->draw);
XDestroyWindow(dpy, menu->win);
+ free(menu);
}
/* cleanup and exit */
static void
cleanup(void)
{
- freewindow(rootmenu);
+ XUngrabPointer(dpy, CurrentTime);
+ XUngrabKeyboard(dpy, CurrentTime);
XftColorFree(dpy, visual, colormap, &dc.normal[ColorBG]);
XftColorFree(dpy, visual, colormap, &dc.normal[ColorFG]);
static void
usage(void)
{
- (void)fprintf(stderr, "usage: xmenu title...\n");
+ (void)fprintf(stderr, "usage: xmenu\n");
exit(1);
}