tadded draw.h, draw.c - dwm - [fork] customized build of dwm, the dynamic windo… | |
git clone git://src.adamsgaard.dk/dwm | |
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--- | |
commit e7d41cc18824114300a09d3bdb26c536f30b466e | |
parent 22d88188505b2f08296c32ca82a81cce2b59c909 | |
Author: Connor Lane Smith <[email protected]> | |
Date: Fri, 20 May 2011 19:10:26 +0100 | |
added draw.h, draw.c | |
Diffstat: | |
A draw.c | 176 +++++++++++++++++++++++++++++… | |
A draw.h | 35 +++++++++++++++++++++++++++++… | |
2 files changed, 211 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/draw.c b/draw.c | |
t@@ -0,0 +1,176 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+#include <locale.h> | |
+#include <stdarg.h> | |
+#include <stdio.h> | |
+#include <stdlib.h> | |
+#include <string.h> | |
+#include <X11/Xlib.h> | |
+#include "draw.h" | |
+ | |
+#define MAX(a, b) ((a) > (b) ? (a) : (b)) | |
+#define MIN(a, b) ((a) < (b) ? (a) : (b)) | |
+#define DEFAULTFN "fixed" | |
+ | |
+static Bool loadfont(DC *dc, const char *fontstr); | |
+ | |
+void | |
+drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsi… | |
+ XSetForeground(dc->dpy, dc->gc, color); | |
+ if(fill) | |
+ XFillRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y +… | |
+ else | |
+ XDrawRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y +… | |
+} | |
+ | |
+void | |
+drawtext(DC *dc, const char *text, unsigned long col[ColLast]) { | |
+ char buf[BUFSIZ]; | |
+ size_t mn, n = strlen(text); | |
+ | |
+ /* shorten text if necessary */ | |
+ for(mn = MIN(n, sizeof buf); textnw(dc, text, mn) + dc->font.height/2 … | |
+ if(mn == 0) | |
+ return; | |
+ memcpy(buf, text, mn); | |
+ if(mn < n) | |
+ for(n = MAX(mn-3, 0); n < mn; buf[n++] = '.'); | |
+ | |
+ drawrect(dc, 0, 0, dc->w, dc->h, True, BG(dc, col)); | |
+ drawtextn(dc, buf, mn, col); | |
+} | |
+ | |
+void | |
+drawtextn(DC *dc, const char *text, size_t n, unsigned long col[ColLast]) { | |
+ int x = dc->x + dc->font.height/2; | |
+ int y = dc->y + dc->font.ascent+1; | |
+ | |
+ XSetForeground(dc->dpy, dc->gc, FG(dc, col)); | |
+ if(dc->font.set) | |
+ XmbDrawString(dc->dpy, dc->canvas, dc->font.set, dc->gc, x, y,… | |
+ else { | |
+ XSetFont(dc->dpy, dc->gc, dc->font.xfont->fid); | |
+ XDrawString(dc->dpy, dc->canvas, dc->gc, x, y, text, n); | |
+ } | |
+} | |
+ | |
+void | |
+eprintf(const char *fmt, ...) { | |
+ va_list ap; | |
+ | |
+ va_start(ap, fmt); | |
+ vfprintf(stderr, fmt, ap); | |
+ va_end(ap); | |
+ | |
+ if(fmt[0] != '\0' && fmt[strlen(fmt)-1] == ':') { | |
+ fputc(' ', stderr); | |
+ perror(NULL); | |
+ } | |
+ exit(EXIT_FAILURE); | |
+} | |
+ | |
+void | |
+freedc(DC *dc) { | |
+ if(dc->font.set) | |
+ XFreeFontSet(dc->dpy, dc->font.set); | |
+ if(dc->font.xfont) | |
+ XFreeFont(dc->dpy, dc->font.xfont); | |
+ if(dc->canvas) | |
+ XFreePixmap(dc->dpy, dc->canvas); | |
+ XFreeGC(dc->dpy, dc->gc); | |
+ XCloseDisplay(dc->dpy); | |
+ free(dc); | |
+} | |
+ | |
+unsigned long | |
+getcolor(DC *dc, const char *colstr) { | |
+ Colormap cmap = DefaultColormap(dc->dpy, DefaultScreen(dc->dpy)); | |
+ XColor color; | |
+ | |
+ if(!XAllocNamedColor(dc->dpy, cmap, colstr, &color, &color)) | |
+ eprintf("cannot allocate color '%s'\n", colstr); | |
+ return color.pixel; | |
+} | |
+ | |
+DC * | |
+initdc(void) { | |
+ DC *dc; | |
+ | |
+ if(!setlocale(LC_CTYPE, "") || !XSupportsLocale()) | |
+ fprintf(stderr, "no locale support\n"); | |
+ if(!(dc = calloc(1, sizeof *dc))) | |
+ eprintf("cannot malloc %u bytes:", sizeof *dc); | |
+ if(!(dc->dpy = XOpenDisplay(NULL))) | |
+ eprintf("cannot open display\n"); | |
+ | |
+ dc->gc = XCreateGC(dc->dpy, DefaultRootWindow(dc->dpy), 0, NULL); | |
+ XSetLineAttributes(dc->dpy, dc->gc, 1, LineSolid, CapButt, JoinMiter); | |
+ return dc; | |
+} | |
+ | |
+void | |
+initfont(DC *dc, const char *fontstr) { | |
+ if(!loadfont(dc, fontstr ? fontstr : DEFAULTFN)) { | |
+ if(fontstr != NULL) | |
+ fprintf(stderr, "cannot load font '%s'\n", fontstr); | |
+ if(fontstr == NULL || !loadfont(dc, DEFAULTFN)) | |
+ eprintf("cannot load font '%s'\n", DEFAULTFN); | |
+ } | |
+ dc->font.height = dc->font.ascent + dc->font.descent; | |
+} | |
+ | |
+Bool | |
+loadfont(DC *dc, const char *fontstr) { | |
+ char *def, **missing, **names; | |
+ int i, n = 1; | |
+ XFontStruct **xfonts; | |
+ | |
+ if(!*fontstr) | |
+ return False; | |
+ if((dc->font.set = XCreateFontSet(dc->dpy, fontstr, &missing, &n, &def… | |
+ n = XFontsOfFontSet(dc->font.set, &xfonts, &names); | |
+ } | |
+ else { | |
+ dc->font.xfont = XLoadQueryFont(dc->dpy, fontstr); | |
+ xfonts = &dc->font.xfont; | |
+ } | |
+ for(i = 0; i < n; i++) { | |
+ dc->font.ascent = MAX(dc->font.ascent, xfonts[i]->ascent); | |
+ dc->font.descent = MAX(dc->font.descent, xfonts[i]->descent); | |
+ dc->font.width = MAX(dc->font.width, xfonts[i]->max_bounds… | |
+ } | |
+ if(missing) | |
+ XFreeStringList(missing); | |
+ return (dc->font.set || dc->font.xfont); | |
+} | |
+ | |
+void | |
+mapdc(DC *dc, Window win, unsigned int w, unsigned int h) { | |
+ XCopyArea(dc->dpy, dc->canvas, win, dc->gc, 0, 0, w, h, 0, 0); | |
+} | |
+ | |
+void | |
+resizedc(DC *dc, unsigned int w, unsigned int h) { | |
+ if(dc->canvas) | |
+ XFreePixmap(dc->dpy, dc->canvas); | |
+ | |
+ dc->canvas = XCreatePixmap(dc->dpy, DefaultRootWindow(dc->dpy), w, h, | |
+ DefaultDepth(dc->dpy, DefaultScreen(dc->dpy… | |
+ dc->w = w; | |
+ dc->h = h; | |
+} | |
+ | |
+int | |
+textnw(DC *dc, const char *text, size_t len) { | |
+ if(dc->font.set) { | |
+ XRectangle r; | |
+ | |
+ XmbTextExtents(dc->font.set, text, len, NULL, &r); | |
+ return r.width; | |
+ } | |
+ return XTextWidth(dc->font.xfont, text, len); | |
+} | |
+ | |
+int | |
+textw(DC *dc, const char *text) { | |
+ return textnw(dc, text, strlen(text)) + dc->font.height; | |
+} | |
diff --git a/draw.h b/draw.h | |
t@@ -0,0 +1,35 @@ | |
+/* See LICENSE file for copyright and license details. */ | |
+ | |
+#define FG(dc, col) ((col)[(dc)->invert ? ColBG : ColFG]) | |
+#define BG(dc, col) ((col)[(dc)->invert ? ColFG : ColBG]) | |
+ | |
+enum { ColBG, ColFG, ColBorder, ColLast }; | |
+ | |
+typedef struct { | |
+ int x, y, w, h; | |
+ Bool invert; | |
+ Display *dpy; | |
+ GC gc; | |
+ Pixmap canvas; | |
+ struct { | |
+ int ascent; | |
+ int descent; | |
+ int height; | |
+ int width; | |
+ XFontSet set; | |
+ XFontStruct *xfont; | |
+ } font; | |
+} DC; /* draw context */ | |
+ | |
+void drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill,… | |
+void drawtext(DC *dc, const char *text, unsigned long col[ColLast]); | |
+void drawtextn(DC *dc, const char *text, size_t n, unsigned long col[ColLast]); | |
+void eprintf(const char *fmt, ...); | |
+void freedc(DC *dc); | |
+unsigned long getcolor(DC *dc, const char *colstr); | |
+DC *initdc(void); | |
+void initfont(DC *dc, const char *fontstr); | |
+void mapdc(DC *dc, Window win, unsigned int w, unsigned int h); | |
+void resizedc(DC *dc, unsigned int w, unsigned int h); | |
+int textnw(DC *dc, const char *text, size_t len); | |
+int textw(DC *dc, const char *text); |