Initial revision

2007-04-27 17:58:48 +00:00
commit 3d12c94f42
42 changed files with 20753 additions and 0 deletions
--- a/font.c
+++ b/font.c
@@ -0,0 +1,159 @@
+/*
+ * font.c - cwm font abstraction
+ *
+ * Copyright (c) 2005 Marius Eriksen <marius@monkey.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "hash.h"
+#include "headers.h"
+#include "calmwm.h"
+
+static XftFont *_make_font(struct screen_ctx *sc, struct fontdesc *fdp);
+
+HASH_GENERATE(fonthash, fontdesc, node, fontdesc_cmp);
+
+int
+fontdesc_cmp(struct fontdesc *a, struct fontdesc *b)
+{
+	return strcmp(a->name, b->name);
+}
+
+/*
+ * Fowler/Noll/Vo hash
+ *    http://www.isthe.com/chongo/tech/comp/fnv/
+ */
+
+#define FNV_P_32 ((unsigned int)0x01000193) /* 16777619 */
+#define FNV_1_32 ((unsigned int)0x811c9dc5) /* 2166136261 */
+
+unsigned int
+fontdesc_hash(struct fontdesc *fdp)
+{
+        const unsigned char *p, *end, *start;
+        unsigned int hash = FNV_1_32;
+
+	start = fdp->name;
+	end = (const unsigned char *)fdp->name + strlen(fdp->name);
+
+        for (p = start; p < end; p++) {
+                hash *= FNV_P_32;
+                hash ^= (unsigned int)*p;
+        }
+
+        return (hash);
+}
+
+void
+font_init(struct screen_ctx *sc)
+{
+	XColor xcolor, tmp;
+
+	HASH_INIT(&sc->fonthash, fontdesc_hash);
+	sc->xftdraw = XftDrawCreate(G_dpy, sc->rootwin,
+	    DefaultVisual(G_dpy, sc->which), DefaultColormap(G_dpy, sc->which));
+	if (sc->xftdraw == NULL)
+		errx(1, "XftDrawCreate");
+
+	if (!XAllocNamedColor(G_dpy, DefaultColormap(G_dpy, sc->which),
+		"black", &xcolor, &tmp))
+		errx(1, "XAllocNamedColor");
+
+	sc->xftcolor.color.red = xcolor.red;
+	sc->xftcolor.color.green = xcolor.green;
+	sc->xftcolor.color.blue = xcolor.blue;
+	sc->xftcolor.color.alpha = 0x00ff00;
+	sc->xftcolor.pixel = xcolor.pixel;
+}
+
+struct fontdesc *
+font_getx(struct screen_ctx *sc, const char *name)
+{
+	struct fontdesc *fdp;
+
+	if ((fdp = font_get(sc, name)) == NULL)
+		errx(1, "font_get()");
+
+	return (fdp);
+}
+
+struct fontdesc *
+font_get(struct screen_ctx *sc, const char *name)
+{
+	struct fontdesc fd, *fdp;
+	XftFont *fn;
+
+	fd.name = name;
+
+	if ((fdp = HASH_FIND(fonthash, &sc->fonthash, &fd)) == NULL
+	    && (fn = _make_font(sc, &fd)) != NULL) {
+		fdp = xmalloc(sizeof(*fdp));
+		fdp->name = xstrdup(fd.name);
+		fdp->fn = fn;
+		fdp->sc = sc;
+		HASH_INSERT(fonthash, &sc->fonthash, fdp);
+	}
+
+	return (fdp);
+}
+
+int
+font_width(struct fontdesc *fdp, const char *text, int len)
+{
+    XGlyphInfo extents;
+    XftTextExtents8(G_dpy, fdp->fn, (const XftChar8*)text, len, &extents);
+
+    return (extents.xOff);
+}
+
+void
+font_draw(struct fontdesc *fdp, const char *text, int len,
+    Drawable d, int x, int y)
+{
+	XftDrawChange(fdp->sc->xftdraw, d);
+	/* Really needs to be UTF8'd. */
+	XftDrawString8(fdp->sc->xftdraw, &fdp->sc->xftcolor, fdp->fn, x, y,
+	    (const FcChar8*)text, len);
+}
+
+int
+font_ascent(struct fontdesc *fdp)
+{
+	return fdp->fn->ascent;
+}
+
+int
+font_descent(struct fontdesc *fdp)
+{
+	return fdp->fn->descent;
+}
+
+static XftFont *
+_make_font(struct screen_ctx *sc, struct fontdesc *fdp)
+{
+	XftFont *fn = NULL;
+	FcPattern *pat, *patx;
+	XftResult res;
+
+	if ((pat = FcNameParse(fdp->name)) == NULL)
+		return (NULL);
+
+	if ((patx = XftFontMatch(G_dpy, sc->which, pat, &res)) != NULL)
+		fn = XftFontOpenPattern(G_dpy, patx);
+
+	FcPatternDestroy(pat);
+
+	return (fn);
+}
+