initial commit - libsl - shared code master of various suckless projects | |
git clone git://git.suckless.org/libsl | |
Log | |
Files | |
Refs | |
LICENSE | |
--- | |
commit bfdec1e2d45497b6d53e366aa31e063214829023 | |
Author: Anselm R Garbe <[email protected]> | |
Date: Mon, 10 Dec 2012 10:04:58 +0100 | |
initial commit | |
Diffstat: | |
A arg.h | 41 +++++++++++++++++++++++++++++… | |
A drw.c | 202 +++++++++++++++++++++++++++++… | |
A drw.h | 61 +++++++++++++++++++++++++++++… | |
A util.c | 17 +++++++++++++++++ | |
A util.h | 6 ++++++ | |
5 files changed, 327 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/arg.h b/arg.h | |
@@ -0,0 +1,41 @@ | |
+/* | |
+ * Copy me if you can. | |
+ * by 20h | |
+ */ | |
+ | |
+#ifndef __ARG_H__ | |
+#define __ARG_H__ | |
+ | |
+extern char *argv0; | |
+ | |
+#define USED(x) ((void)(x)) | |
+ | |
+#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ | |
+ argv[0] && argv[0][1]\ | |
+ && argv[0][0] == '-';\ | |
+ argc--, argv++) {\ | |
+ char _argc;\ | |
+ char **_argv;\ | |
+ if (argv[0][1] == '-' && argv[0][2] == '\0') {\ | |
+ argv++;\ | |
+ argc--;\ | |
+ break;\ | |
+ }\ | |
+ for (argv[0]++, _argv = argv; argv[0][0];\ | |
+ argv[0]++) {\ | |
+ if (_argv != argv)\ | |
+ break;\ | |
+ _argc = argv[0][0];\ | |
+ switch (_argc) | |
+ | |
+#define ARGEND }\ | |
+ USED(_argc);\ | |
+ }\ | |
+ USED(argv);\ | |
+ USED(argc); | |
+ | |
+#define EARGF(x) ((argv[1] == NULL)? ((x), abort(), (char *)0) :\ | |
+ (argc--, argv++, argv[0])) | |
+ | |
+#endif | |
+ | |
diff --git a/drw.c b/drw.c | |
@@ -0,0 +1,202 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+#include <stdio.h> | |
+#include <stdlib.h> | |
+#include <string.h> | |
+#include <X11/Xlib.h> | |
+ | |
+#include "drw.h" | |
+#include "util.h" | |
+ | |
+Drw * | |
+drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int … | |
+ Drw *drw = (Drw *)calloc(1, sizeof(Drw)); | |
+ drw->dpy = dpy; | |
+ drw->screen = screen; | |
+ drw->win = win; | |
+ drw->w = w; | |
+ drw->h = h; | |
+ drw->drwable = XCreatePixmap(dpy, win, w, h, DefaultDepth(dpy, screen)… | |
+ drw->gc = XCreateGC(dpy, win, 0, NULL); | |
+ XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); | |
+ return drw; | |
+} | |
+ | |
+void | |
+drw_resize(Drw *drw, unsigned int w, unsigned int h) { | |
+ if(!drw) | |
+ return; | |
+ drw->w = w; | |
+ drw->h = h; | |
+ XFreePixmap(drw->dpy, drw->drwable); | |
+ drw->drwable = XCreatePixmap(drw->dpy, drw->win, w, h, DefaultDepth(dr… | |
+} | |
+ | |
+void | |
+drw_free(Drw *drw) { | |
+ XFreePixmap(drw->dpy, drw->drwable); | |
+ XFreeGC(drw->dpy, drw->gc); | |
+ free(drw); | |
+} | |
+ | |
+Fnt * | |
+drw_font_create(Drw *drw, const char *fontname) { | |
+ Fnt *font; | |
+ char *def, **missing; | |
+ int n; | |
+ | |
+ if(!drw) | |
+ return NULL; | |
+ font = (Fnt *)calloc(1, sizeof(Fnt)); | |
+ font->set = XCreateFontSet(drw->dpy, fontname, &missing, &n, &def); | |
+ if(missing) { | |
+ while(n--) | |
+ fprintf(stderr, "drw: missing fontset: %s\n", missing[… | |
+ XFreeStringList(missing); | |
+ } | |
+ if(font->set) { | |
+ XFontStruct **xfonts; | |
+ char **font_names; | |
+ XExtentsOfFontSet(font->set); | |
+ n = XFontsOfFontSet(font->set, &xfonts, &font_names); | |
+ while(n--) { | |
+ font->ascent = MAX(font->ascent, (*xfonts)->ascent); | |
+ font->descent = MAX(font->descent,(*xfonts)->descent); | |
+ xfonts++; | |
+ } | |
+ } | |
+ else { | |
+ if(!(font->xfont = XLoadQueryFont(drw->dpy, fontname)) | |
+ && !(font->xfont = XLoadQueryFont(drw->dpy, "fixed"))) | |
+ die("error, cannot load font: '%s'\n", fontname); | |
+ font->ascent = font->xfont->ascent; | |
+ font->descent = font->xfont->descent; | |
+ } | |
+ font->h = font->ascent + font->descent; | |
+ return font; | |
+} | |
+ | |
+void | |
+drw_font_free(Drw *drw, Fnt *font) { | |
+ if(!drw || !font) | |
+ return; | |
+ if(font->set) | |
+ XFreeFontSet(drw->dpy, font->set); | |
+ else | |
+ XFreeFont(drw->dpy, font->xfont); | |
+ free(font); | |
+} | |
+ | |
+Clr * | |
+drw_clr_create(Drw *drw, const char *clrname) { | |
+ Clr *clr = (Clr *)calloc(1, sizeof(Clr)); | |
+ Colormap cmap = DefaultColormap(drw->dpy, drw->screen); | |
+ XColor color; | |
+ | |
+ if(!XAllocNamedColor(drw->dpy, cmap, clrname, &color, &color)) | |
+ die("error, cannot allocate color '%s'\n", clrname); | |
+ clr->rgb = color.pixel; | |
+ return clr; | |
+} | |
+ | |
+void | |
+drw_clr_free(Drw *drw, Clr *clr) { | |
+ if(!clr) | |
+ return; | |
+ free(clr); | |
+} | |
+ | |
+void | |
+drw_setfont(Drw *drw, Fnt *font) { | |
+ if(!drw) | |
+ return; | |
+ drw->font = font; | |
+} | |
+ | |
+void | |
+drw_setfg(Drw *drw, Clr *clr) { | |
+ if(!drw) | |
+ return; | |
+ drw->fg = clr; | |
+} | |
+ | |
+void | |
+drw_setbg(Drw *drw, Clr *clr) { | |
+ if(!drw) | |
+ return; | |
+ drw->bg = clr; | |
+} | |
+ | |
+void | |
+drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, Bool filled, … | |
+ int dx; | |
+ | |
+ if(!drw || !drw->font || !drw->fg || !drw->bg) | |
+ return; | |
+ XSetForeground(drw->dpy, drw->gc, invert ? drw->bg->rgb : drw->fg->rgb… | |
+ dx = (drw->font->ascent + drw->font->descent + 2) / 4; | |
+ if(filled) | |
+ XFillRectangle(drw->dpy, drw->drwable, drw->gc, x+1, y+1, dx+1… | |
+ else if(empty) | |
+ XDrawRectangle(drw->dpy, drw->drwable, drw->gc, x+1, y+1, dx, … | |
+} | |
+ | |
+void | |
+drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const char *t… | |
+ char buf[256]; | |
+ int i, tx, ty, len, olen; | |
+ Extnts tex; | |
+ | |
+ if(!drw || !drw->fg || !drw->bg) | |
+ return; | |
+ XSetForeground(drw->dpy, drw->gc, invert ? drw->fg->rgb : drw->bg->rgb… | |
+ XFillRectangle(drw->dpy, drw->drwable, drw->gc, x, y, w, h); | |
+ if(!text || !drw->font) | |
+ return; | |
+ olen = strlen(text); | |
+ drw_getexts(drw, text, olen, &tex); | |
+ ty = y + (h / 2) - tex.yOff; | |
+ tx = x + tex.xOff; | |
+ /* shorten text if necessary */ | |
+ for(len = MIN(olen, sizeof buf); len && tex.w > w - tex.h; len--) | |
+ drw_getexts(drw, text, len, &tex); | |
+ if(!len) | |
+ return; | |
+ memcpy(buf, text, len); | |
+ if(len < olen) | |
+ for(i = len; i && i > len - 3; buf[--i] = '.'); | |
+ XSetForeground(drw->dpy, drw->gc, invert ? drw->bg->rgb : drw->fg->rgb… | |
+ if(drw->font->set) | |
+ XmbDrawString(drw->dpy, drw->drwable, drw->font->set, drw->gc,… | |
+ else | |
+ XDrawString(drw->dpy, drw->drwable, drw->gc, tx, ty, buf, len); | |
+} | |
+ | |
+void | |
+drw_map(Drw *drw, int x, int y, unsigned int w, unsigned int h) { | |
+ if(!drw) | |
+ return; | |
+ XCopyArea(drw->dpy, drw->drwable, drw->win, drw->gc, x, y, w, h, x, y); | |
+ XSync(drw->dpy, False); | |
+} | |
+ | |
+ | |
+void | |
+drw_getexts(Drw *drw, const char *text, unsigned int len, Extnts *tex) { | |
+ XRectangle r; | |
+ | |
+ if(!drw || !drw->font || !text) | |
+ return; | |
+ if(drw->font->set) { | |
+ XmbTextExtents(drw->font->set, text, len, NULL, &r); | |
+ tex->xOff = r.x; | |
+ tex->yOff = r.y; | |
+ tex->w = r.width; | |
+ tex->h = r.height; | |
+ } | |
+ else { | |
+ tex->h = drw->font->ascent + drw->font->descent; | |
+ tex->w = XTextWidth(drw->font->xfont, text, len); | |
+ tex->xOff = tex->h / 2; | |
+ tex->yOff = (tex->h / 2) + drw->font->ascent; | |
+ } | |
+} | |
diff --git a/drw.h b/drw.h | |
@@ -0,0 +1,61 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+ | |
+typedef struct { | |
+ unsigned long rgb; | |
+} Clr; | |
+ | |
+typedef struct { | |
+ int ascent; | |
+ int descent; | |
+ unsigned int h; | |
+ XFontSet set; | |
+ XFontStruct *xfont; | |
+} Fnt; | |
+ | |
+typedef struct { | |
+ unsigned int w, h; | |
+ Display *dpy; | |
+ int screen; | |
+ Window win; | |
+ Drawable drwable; | |
+ GC gc; | |
+ Clr *fg; | |
+ Clr *bg; | |
+ Fnt *font; | |
+} Drw; | |
+ | |
+typedef struct { | |
+ unsigned int w; | |
+ unsigned int h; | |
+ int xOff; | |
+ int yOff; | |
+} Extnts; | |
+ | |
+/* Drawable abstraction */ | |
+Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned… | |
+void drw_resize(Drw *drw, unsigned int w, unsigned int h); | |
+void drw_free(Drw *drw); | |
+ | |
+/* Fnt abstraction */ | |
+Fnt *drw_font_create(Drw *drw, const char *fontname); | |
+void drw_font_free(Drw *drw, Fnt *font); | |
+ | |
+/* Clrour abstraction */ | |
+Clr *drw_clr_create(Drw *drw, const char *clrname); | |
+void drw_clr_free(Drw *drw, Clr *clr); | |
+ | |
+/* Drawing context manipulation */ | |
+void drw_setfont(Drw *drw, Fnt *font); | |
+void drw_setfg(Drw *drw, Clr *clr); | |
+void drw_setbg(Drw *drw, Clr *clr); | |
+ | |
+/* Drawing functions */ | |
+void drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, Bool fil… | |
+void drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const ch… | |
+ | |
+/* Map functions */ | |
+void drw_map(Drw *drw, int x, int y, unsigned int w, unsigned int h); | |
+ | |
+/* Text functions */ | |
+void drw_getexts(Drw *drw, const char *text, unsigned int len, Extnts *extnts); | |
+ | |
diff --git a/util.c b/util.c | |
@@ -0,0 +1,17 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+#include <stdarg.h> | |
+#include <stdio.h> | |
+#include <stdlib.h> | |
+ | |
+#include "util.h" | |
+ | |
+void | |
+die(const char *errstr, ...) { | |
+ va_list ap; | |
+ | |
+ va_start(ap, errstr); | |
+ vfprintf(stderr, errstr, ap); | |
+ va_end(ap); | |
+ exit(EXIT_FAILURE); | |
+} | |
+ | |
diff --git a/util.h b/util.h | |
@@ -0,0 +1,6 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+ | |
+#define MAX(A, B) ((A) > (B) ? (A) : (B)) | |
+#define MIN(A, B) ((A) < (B) ? (A) : (B)) | |
+ | |
+void die(const char *errstr, ...); |