dmenu

commit a0a99d10e1a019f74a8b2af4d5f8b47348e08a75
parent 7cf66b443ad1cc9a698db477401b843f3c14184b
Author: Connor Lane Smith <cls@lubutu.com>
Date:   Thu, 11 Nov 2010 23:56:39 +0000

removed libdc dependence
Diffstat:
Makefile
 | 
14
+++++++++-----
README
 | 
2
--
config.mk
 | 
2
+-
dmenu.c
 | 
52
++++++++++++++++++++++++++--------------------------
draw.c
 | 
196
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
draw.h
 | 
37
+++++++++++++++++++++++++++++++++++++

6 files changed, 269 insertions(+), 34 deletions(-)
diff --git a/Makefile b/Makefile
@@ -3,7 +3,7 @@
 
 include config.mk
 
-all: options dmenu dmenu_path
+all: options dmenu dmenu_path config.mk
 
 options:
 	@echo dmenu build options:
@@ -11,16 +11,20 @@ options:
 	@echo "LDFLAGS  = ${LDFLAGS}"
 	@echo "CC       = ${CC}"
 
-dmenu: dmenu.c config.mk
-dmenu_path: dmenu_path.c
+dmenu: dmenu.o draw.o
+dmenu_path: dmenu_path.o
+
+.c.o:
+	@echo CC -c $<
+	@${CC} -c $< ${CFLAGS}
 
 dmenu dmenu_path:
 	@echo CC -o $@
-	@${CC} -o $@ $< ${CFLAGS} ${LDFLAGS}
+	@${CC} -o $@ $+ ${LDFLAGS}
 
 clean:
 	@echo cleaning
-	@rm -f dmenu dmenu_path dmenu-${VERSION}.tar.gz
+	@rm -f dmenu dmenu.o draw.o dmenu_path dmenu_path.o dmenu-${VERSION}.tar.gz
 
 dist: clean
 	@echo creating dist tarball
diff --git a/README b/README
@@ -7,8 +7,6 @@ Requirements
 ------------
 In order to build dmenu you need the Xlib header files.
 
-You also need libdc, available from http://hg.suckless.org/libdraw
-
 
 Installation
 ------------
diff --git a/config.mk b/config.mk
@@ -16,7 +16,7 @@ XINERAMAFLAGS = -DXINERAMA
 
 # includes and libs
 INCS = -I${X11INC}
-LIBS = -L${X11LIB} -ldc -lX11 ${XINERAMALIBS}
+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS}
 
 # flags
 CPPFLAGS = -D_BSD_SOURCE -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
diff --git a/dmenu.c b/dmenu.c
@@ -10,7 +10,7 @@
 #ifdef XINERAMA
 #include <X11/extensions/Xinerama.h>
 #endif
-#include <dc.h>
+#include "draw.h"
 
 #define INRECT(x,y,rx,ry,rw,rh) ((x) >= (rx) && (x) < (rx)+(rw) && (y) >= (ry) && (y) < (ry)+(rh))
 #define MIN(a,b)                ((a) < (b) ? (a) : (b))
@@ -81,13 +81,13 @@ calcoffsets(void) {
 	if(lines > 0)
 		n = lines * bh;
 	else
-		n = mw - (promptw + inputw + dc_textw(dc, "<") + dc_textw(dc, ">"));
+		n = mw - (promptw + inputw + textw(dc, "<") + textw(dc, ">"));
 
 	for(i = 0, next = curr; next; next = next->right)
-		if((i += (lines > 0) ? bh : MIN(dc_textw(dc, next->text), n)) > n)
+		if((i += (lines > 0) ? bh : MIN(textw(dc, next->text), n)) > n)
 			break;
 	for(i = 0, prev = curr; prev && prev->left; prev = prev->left)
-		if((i += (lines > 0) ? bh : MIN(dc_textw(dc, prev->left->text), n)) > n)
+		if((i += (lines > 0) ? bh : MIN(textw(dc, prev->left->text), n)) > n)
 			break;
 }
 
@@ -99,41 +99,41 @@ drawmenu(void) {
 	dc->x = 0;
 	dc->y = 0;
 	dc->h = bh;
-	dc_drawrect(dc, 0, 0, mw, mh, True, BG(dc, normcol));
+	drawrect(dc, 0, 0, mw, mh, True, BG(dc, normcol));
 
 	if(prompt) {
 		dc->w = promptw;
-		dc_drawtext(dc, prompt, selcol);
+		drawtext(dc, prompt, selcol);
 		dc->x = dc->w;
 	}
 	dc->w = (lines > 0 || !matches) ? mw - dc->x : inputw;
-	dc_drawtext(dc, text, normcol);
-	if((curpos = dc_textnw(dc, text, cursor) + dc->h/2 - 2) < dc->w)
-		dc_drawrect(dc, curpos, 2, 1, dc->h - 4, True, FG(dc, normcol));
+	drawtext(dc, text, normcol);
+	if((curpos = textnw(dc, text, cursor) + dc->h/2 - 2) < dc->w)
+		drawrect(dc, curpos, 2, 1, dc->h - 4, True, FG(dc, normcol));
 
 	if(lines > 0) {
 		dc->w = mw - dc->x;
 		for(item = curr; item != next; item = item->right) {
 			dc->y += dc->h;
-			dc_drawtext(dc, item->text, (item == sel) ? selcol : normcol);
+			drawtext(dc, item->text, (item == sel) ? selcol : normcol);
 		}
 	}
 	else if(matches) {
 		dc->x += inputw;
-		dc->w = dc_textw(dc, "<");
+		dc->w = textw(dc, "<");
 		if(curr->left)
-			dc_drawtext(dc, "<", normcol);
+			drawtext(dc, "<", normcol);
 		for(item = curr; item != next; item = item->right) {
 			dc->x += dc->w;
-			dc->w = MIN(dc_textw(dc, item->text), mw - dc->x - dc_textw(dc, ">"));
-			dc_drawtext(dc, item->text, (item == sel) ? selcol : normcol);
+			dc->w = MIN(textw(dc, item->text), mw - dc->x - textw(dc, ">"));
+			drawtext(dc, item->text, (item == sel) ? selcol : normcol);
 		}
-		dc->w = dc_textw(dc, ">");
+		dc->w = textw(dc, ">");
 		dc->x = mw - dc->w;
 		if(next)
-			dc_drawtext(dc, ">", normcol);
+			drawtext(dc, ">", normcol);
 	}
-	dc_map(dc, win, mw, mh);
+	mapdc(dc, win, mw, mh);
 }
 
 char *
@@ -398,7 +398,7 @@ readstdin(void) {
 		if(!(item->text = strdup(buf)))
 			eprintf("cannot strdup %u bytes\n", strlen(buf)+1);
 		item->next = item->left = item->right = NULL;
-		inputw = MAX(inputw, dc_textw(dc, item->text));
+		inputw = MAX(inputw, textw(dc, item->text));
 	}
 }
 
@@ -439,10 +439,10 @@ setup(void) {
 	root = RootWindow(dc->dpy, screen);
 	utf8 = XInternAtom(dc->dpy, "UTF8_STRING", False);
 
-	normcol[ColBG] = dc_color(dc, normbgcolor);
-	normcol[ColFG] = dc_color(dc, normfgcolor);
-	selcol[ColBG] = dc_color(dc, selbgcolor);
-	selcol[ColFG] = dc_color(dc, selfgcolor);
+	normcol[ColBG] = getcolor(dc, normbgcolor);
+	normcol[ColFG] = getcolor(dc, normfgcolor);
+	selcol[ColBG] = getcolor(dc, selbgcolor);
+	selcol[ColFG] = getcolor(dc, selfgcolor);
 
 	/* menu geometry */
 	bh = dc->font.height + 2;
@@ -481,9 +481,9 @@ setup(void) {
 	                    CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 
 	grabkeyboard();
-	dc_resize(dc, mw, mh);
+	resizedc(dc, mw, mh);
 	inputw = MIN(inputw, mw/3);
-	promptw = prompt ? dc_textw(dc, prompt) : 0;
+	promptw = prompt ? textw(dc, prompt) : 0;
 	XMapRaised(dc->dpy, win);
 	text[0] = '\0';
 	match();
@@ -533,8 +533,8 @@ main(int argc, char *argv[]) {
 		else
 			usage();
 
-	dc = dc_init();
-	dc_font(dc, font);
+	dc = initdc();
+	initfont(dc, font);
 	readstdin();
 	setup();
 	run();
diff --git a/draw.c b/draw.c
@@ -0,0 +1,196 @@
+/* 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 FG(dc, col) ((col)[(dc)->invert ? ColBG : ColFG])
+#define BG(dc, col) ((col)[(dc)->invert ? ColFG : ColBG])
+#define DEFFONT     "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, unsigned long color) {
+	XRectangle r = { dc->x + x, dc->y + y, w, h };
+
+	if(!fill) {
+		r.width -= 1;
+		r.height -= 1;
+	}
+	XSetForeground(dc->dpy, dc->gc, color);
+	(fill ? XFillRectangles : XDrawRectangles)(dc->dpy, dc->canvas, dc->gc, &r, 1);
+}
+
+
+void
+drawtext(DC *dc, const char *text, unsigned long col[ColLast]) {
+	char buf[256];
+	size_t n, mn;
+
+	/* shorten text if necessary */
+	n = strlen(text);
+	for(mn = MIN(n, sizeof buf); textnw(dc, text, mn) > dc->w - dc->font.height/2; mn--)
+		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, y;
+
+	x = dc->x + dc->font.height/2;
+	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, text, n);
+	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;
+
+	fprintf(stderr, "%s: ", progname);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	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())
+		weprintf("no locale support\n");
+	if(!(dc = malloc(sizeof *dc)))
+		eprintf("cannot malloc %u bytes\n", 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);
+	dc->font.xfont = NULL;
+	dc->font.set = NULL;
+	dc->canvas = None;
+	return dc;
+}
+
+void
+initfont(DC *dc, const char *fontstr) {
+	if(!loadfont(dc, fontstr ? fontstr : DEFFONT)) {
+		if(fontstr != NULL)
+			weprintf("cannot load font '%s'\n", fontstr);
+		if(fontstr == NULL || !loadfont(dc, DEFFONT))
+			eprintf("cannot load font '%s'\n", DEFFONT);
+	}
+	dc->font.height = dc->font.ascent + dc->font.descent;
+}
+
+Bool
+loadfont(DC *dc, const char *fontstr) {
+	char *def, **missing;
+	int i, n;
+
+	if(!*fontstr)
+		return False;
+	if((dc->font.set = XCreateFontSet(dc->dpy, fontstr, &missing, &n, &def))) {
+		char **names;
+		XFontStruct **xfonts;
+
+		n = XFontsOfFontSet(dc->font.set, &xfonts, &names);
+		for(i = dc->font.ascent = dc->font.descent = 0; i < n; i++) {
+			dc->font.ascent = MAX(dc->font.ascent, xfonts[i]->ascent);
+			dc->font.descent = MAX(dc->font.descent, xfonts[i]->descent);
+		}
+	}
+	else if((dc->font.xfont = XLoadQueryFont(dc->dpy, fontstr))) {
+		dc->font.ascent = dc->font.xfont->ascent;
+		dc->font.descent = dc->font.xfont->descent;
+	}
+	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->x = dc->y = 0;
+	dc->w = w;
+	dc->h = h;
+	dc->invert = False;
+}
+
+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;
+}
+
+void
+weprintf(const char *fmt, ...) {
+	va_list ap;
+
+	fprintf(stderr, "%s: warning: ", progname);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+}
diff --git a/draw.h b/draw.h
@@ -0,0 +1,37 @@
+/* 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;
+		XFontSet set;
+		XFontStruct *xfont;
+	} font;
+} DC;  /* draw context */
+
+unsigned long getcolor(DC *dc, const char *colstr);
+void drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color);
+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 initfont(DC *dc, const char *fontstr);
+void freedc(DC *dc);
+DC *initdc(void);
+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);
+void eprintf(const char *fmt, ...);
+void weprintf(const char *fmt, ...);
+
+const char *progname;