patch: fuzzymatch

[dmenu.git] / drw.c

diff --git a/drw.c b/drw.c
index e65d069..1630777 100644 (file)
--- a/drw.c
+++ b/drw.c
@@ -61,7 +61,7 @@ utf8decode(const char *c, long *u, size_t clen)
 }
 
 Drw *
-drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
+drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap)
 {
        Drw *drw = ecalloc(1, sizeof(Drw));
 
@@ -70,8 +70,11 @@ drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h
        drw->root = root;
        drw->w = w;
        drw->h = h;
-       drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
-       drw->gc = XCreateGC(dpy, root, 0, NULL);
+       drw->visual = visual;
+       drw->depth = depth;
+       drw->cmap = cmap;
+       drw->drawable = XCreatePixmap(dpy, root, w, h, depth);
+       drw->gc = XCreateGC(dpy, drw->drawable, 0, NULL);
        XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
 
        return drw;
@@ -87,7 +90,7 @@ drw_resize(Drw *drw, unsigned int w, unsigned int h)
        drw->h = h;
        if (drw->drawable)
                XFreePixmap(drw->dpy, drw->drawable);
-       drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
+       drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, drw->depth);
 }
 
 void
@@ -194,21 +197,22 @@ drw_fontset_free(Fnt *font)
 }
 
 void
-drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
+drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha)
 {
        if (!drw || !dest || !clrname)
                return;
 
-       if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
-                              DefaultColormap(drw->dpy, drw->screen),
+       if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap,
                               clrname, dest))
                die("error, cannot allocate color '%s'", clrname);
+
+       dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24);
 }
 
 /* Wrapper to create color schemes. The caller has to call free(3) on the
  * returned color scheme when done using it. */
 Clr *
-drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
+drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount)
 {
        size_t i;
        Clr *ret;
@@ -218,7 +222,7 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
                return NULL;
 
        for (i = 0; i < clrcount; i++)
-               drw_clr_create(drw, &ret[i], clrnames[i]);
+               drw_clr_create(drw, &ret[i], clrnames[i], alphas[i]);
        return ret;
 }
 
@@ -251,7 +255,7 @@ drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int
 int
 drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
 {
-       int ty, ellipsis_x = 0;
+       int i, ty, ellipsis_x = 0;
        unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len, ellipsis_width;
        XftDraw *d = NULL;
        Fnt *usedfont, *curfont, *nextfont;
@@ -263,18 +267,19 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
        FcPattern *match;
        XftResult result;
        int charexists = 0, overflow = 0;
+       /* keep track of a couple codepoints for which we have no match. */
+       enum { nomatches_len = 64 };
+       static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
 
        if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
                return 0;
 
        if (!render) {
-               w = ~w;
+               w = invert ? invert : ~invert;
        } else {
                XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
                XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
-               d = XftDrawCreate(drw->dpy, drw->drawable,
-                                 DefaultVisual(drw->dpy, drw->screen),
-                                 DefaultColormap(drw->dpy, drw->screen));
+               d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap);
                x += lpad;
                w -= lpad;
        }
@@ -300,7 +305,13 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
 
                                        if (ew + tmpw > w) {
                                                overflow = 1;
-                                               utf8strlen = ellipsis_len;
+                                               /* called from drw_fontset_getwidth_clamp():
+                                                * it wants the width AFTER the overflow
+                                                */
+                                               if (!render)
+                                                       x += tmpw;
+                                               else
+                                                       utf8strlen = ellipsis_len;
                                        } else if (curfont == usedfont) {
                                                utf8strlen += utf8charlen;
                                                text += utf8charlen;
@@ -340,6 +351,12 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
                         * character must be drawn. */
                        charexists = 1;
 
+                       for (i = 0; i < nomatches_len; ++i) {
+                               /* avoid calling XftFontMatch if we know we won't find a match */
+                               if (utf8codepoint == nomatches.codepoint[i])
+                                       goto no_match;
+                       }
+
                        fccharset = FcCharSetCreate();
                        FcCharSetAddChar(fccharset, utf8codepoint);
 
@@ -368,6 +385,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
                                        curfont->next = usedfont;
                                } else {
                                        xfont_free(usedfont);
+                                       nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint;
+no_match:
                                        usedfont = drw->fonts;
                                }
                        }
@@ -397,6 +416,15 @@ drw_fontset_getwidth(Drw *drw, const char *text)
        return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
 }
 
+unsigned int
+drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n)
+{
+       unsigned int tmp = 0;
+       if (drw && drw->fonts && text && n)
+               tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n);
+       return MIN(n, tmp);
+}
+
 void
 drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
 {