removed libdc dependence

6 files changed, 269 insertions, 34 deletions

diff --git a/Makefile b/Makefile
index c183779..6775a10 100644
--- 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
index 840e677..a8fcdfe 100644
--- 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
index 6e1b95f..4264514 100644
--- 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
index f0be02a..9d6088b 100644
--- 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
new file mode 100644
index 0000000..85c1279
--- /dev/null
+++ 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
new file mode 100644
index 0000000..ac3943f
--- /dev/null
+++ 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;