diff options
Diffstat (limited to 'bar.c')
| -rw-r--r-- | bar.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/bar.c b/bar.c new file mode 100644 index 0000000..9e3c386 --- /dev/null +++ b/bar.c @@ -0,0 +1,258 @@ +/* See LICENSE file for copyright and license details. */ +#include "dwm.h" +#include <string.h> +#include <stdio.h> + +/* static */ + +static void +drawsquare(Bool filled, Bool empty, unsigned long col[ColLast]) { + int x; + XGCValues gcv; + XRectangle r = { dc.x, dc.y, dc.w, dc.h }; + + gcv.foreground = col[ColFG]; + XChangeGC(dpy, dc.gc, GCForeground, &gcv); + x = (dc.font.ascent + dc.font.descent + 2) / 4; + r.x = dc.x + 1; + r.y = dc.y + 1; + if(filled) { + r.width = r.height = x + 1; + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); + } + else if(empty) { + r.width = r.height = x; + XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1); + } +} + +static unsigned long +initcolor(const char *colstr) { + Colormap cmap = DefaultColormap(dpy, screen); + XColor color; + + if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) + eprint("error, cannot allocate color '%s'\n", colstr); + return color.pixel; +} + +static void +initfont(const char *fontstr) { + char *def, **missing; + int i, n; + + missing = NULL; + if(dc.font.set) + XFreeFontSet(dpy, dc.font.set); + dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); + if(missing) { + while(n--) + fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]); + XFreeStringList(missing); + } + if(dc.font.set) { + XFontSetExtents *font_extents; + XFontStruct **xfonts; + char **font_names; + dc.font.ascent = dc.font.descent = 0; + font_extents = XExtentsOfFontSet(dc.font.set); + n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); + for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { + if(dc.font.ascent < (*xfonts)->ascent) + dc.font.ascent = (*xfonts)->ascent; + if(dc.font.descent < (*xfonts)->descent) + dc.font.descent = (*xfonts)->descent; + xfonts++; + } + } + else { + if(dc.font.xfont) + XFreeFont(dpy, dc.font.xfont); + dc.font.xfont = NULL; + if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) + eprint("error, cannot load font: '%s'\n", fontstr); + dc.font.ascent = dc.font.xfont->ascent; + dc.font.descent = dc.font.xfont->descent; + } + dc.font.height = dc.font.ascent + dc.font.descent; +} + +static Bool +isoccupied(unsigned int t) { + Client *c; + + for(c = clients; c; c = c->next) + if(c->tags[t]) + return True; + return False; +} + +static unsigned int +textnw(const char *text, unsigned int len) { + XRectangle r; + + if(dc.font.set) { + XmbTextExtents(dc.font.set, text, len, NULL, &r); + return r.width; + } + return XTextWidth(dc.font.xfont, text, len); +} + +static void +drawtext(const char *text, unsigned long col[ColLast]) { + int x, y, w, h; + static char buf[256]; + unsigned int len, olen; + XRectangle r = { dc.x, dc.y, dc.w, dc.h }; + + XSetForeground(dpy, dc.gc, col[ColBG]); + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); + if(!text) + return; + w = 0; + olen = len = strlen(text); + if(len >= sizeof buf) + len = sizeof buf - 1; + memcpy(buf, text, len); + buf[len] = 0; + h = dc.font.ascent + dc.font.descent; + y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent; + x = dc.x + (h / 2); + /* shorten text if necessary */ + while(len && (w = textnw(buf, len)) > dc.w - h) + buf[--len] = 0; + if(len < olen) { + if(len > 1) + buf[len - 1] = '.'; + if(len > 2) + buf[len - 2] = '.'; + if(len > 3) + buf[len - 3] = '.'; + } + if(w > dc.w) + return; /* too long */ + XSetForeground(dpy, dc.gc, col[ColFG]); + if(dc.font.set) + XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); + else + XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); +} + +/* extern */ + +unsigned int bh; +unsigned int bpos = BARPOS; +DC dc = {0}; +Window barwin; + +void +drawbar(void) { + int i, x; + + dc.x = dc.y = 0; + for(i = 0; i < ntags; i++) { + dc.w = textw(tags[i]); + if(seltags[i]) { + drawtext(tags[i], dc.sel); + drawsquare(sel && sel->tags[i], isoccupied(i), dc.sel); + } + else { + drawtext(tags[i], dc.norm); + drawsquare(sel && sel->tags[i], isoccupied(i), dc.norm); + } + dc.x += dc.w; + } + dc.w = blw; + drawtext(getsymbol(), dc.norm); + x = dc.x + dc.w; + dc.w = textw(stext); + dc.x = sw - dc.w; + if(dc.x < x) { + dc.x = x; + dc.w = sw - x; + } + drawtext(stext, dc.norm); + if((dc.w = dc.x - x) > bh) { + dc.x = x; + if(sel) { + drawtext(sel->name, dc.sel); + drawsquare(sel->ismax, sel->isfloating, dc.sel); + } + else + drawtext(NULL, dc.norm); + } + XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, sw, bh, 0, 0); + XSync(dpy, False); +} + +void +initbar(void) { + XSetWindowAttributes wa; + + dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR); + dc.norm[ColBG] = initcolor(NORMBGCOLOR); + dc.norm[ColFG] = initcolor(NORMFGCOLOR); + dc.sel[ColBorder] = initcolor(SELBORDERCOLOR); + dc.sel[ColBG] = initcolor(SELBGCOLOR); + dc.sel[ColFG] = initcolor(SELFGCOLOR); + initfont(FONT); + dc.h = bh = dc.font.height + 2; + wa.override_redirect = 1; + wa.background_pixmap = ParentRelative; + wa.event_mask = ButtonPressMask | ExposureMask; + barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0, + DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), + CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); + XDefineCursor(dpy, barwin, cursor[CurNormal]); + updatebarpos(); + XMapRaised(dpy, barwin); + strcpy(stext, "dwm-"VERSION); + dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); + dc.gc = XCreateGC(dpy, root, 0, 0); + XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); + if(!dc.font.set) + XSetFont(dpy, dc.gc, dc.font.xfont->fid); +} + +unsigned int +textw(const char *text) { + return textnw(text, strlen(text)) + dc.font.height; +} + +void +togglebar(const char *arg) { + if(bpos == BarOff) + bpos = (BARPOS == BarOff) ? BarTop : BARPOS; + else + bpos = BarOff; + updatebarpos(); + arrange(); +} + +void +updatebarpos(void) { + XEvent ev; + + wax = sx; + way = sy; + wah = sh; + waw = sw; + switch(bpos) { + default: + wah -= bh; + way += bh; + XMoveWindow(dpy, barwin, sx, sy); + break; + case BarBot: + wah -= bh; + XMoveWindow(dpy, barwin, sx, sy + wah); + break; + case BarOff: + XMoveWindow(dpy, barwin, sx, sy - bh); + break; + } + XSync(dpy, False); + while(XCheckMaskEvent(dpy, EnterWindowMask, &ev)); +} + + |