X-Git-Url: https://jasonwoof.com/gitweb/?p=dwm.git;a=blobdiff_plain;f=draw.c;h=341a26f0f9625746741f98e16cb21e729e469ecd;hp=cee56f9f94ced0a042d4ef9c035cd8ffdea37078;hb=e7d41cc18824114300a09d3bdb26c536f30b466e;hpb=7d168a262153dc6f3926804abcf19589a07e0899

diff --git a/draw.c b/draw.c
index cee56f9..341a26f 100644
--- a/draw.c
+++ b/draw.c
@@ -1,195 +1,176 @@
-/* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
- * See LICENSE file for license details.
- */
-#include "dwm.h"
+/* 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/Xlocale.h>
+#include <X11/Xlib.h>
+#include "draw.h"
 
-/* static */
+#define MAX(a, b)  ((a) > (b) ? (a) : (b))
+#define MIN(a, b)  ((a) < (b) ? (a) : (b))
+#define DEFAULTFN  "fixed"
 
-static unsigned int
-textnw(const char *text, unsigned int len) {
-	XRectangle r;
+static Bool loadfont(DC *dc, const char *fontstr);
 
-	if(dc.font.set) {
-		XmbTextExtents(dc.font.set, text, len, NULL, &r);
-		return r.width;
-	}
-	return XTextWidth(dc.font.xfont, text, len);
+void
+drawrect(DC *dc, int x, int y, unsigned int w, unsigned int h, Bool fill, unsigned long color) {
+	XSetForeground(dc->dpy, dc->gc, color);
+	if(fill)
+		XFillRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w, h);
+	else
+		XDrawRectangle(dc->dpy, dc->canvas, dc->gc, dc->x + x, dc->y + y, w-1, h-1);
 }
 
-static void
-drawtext(const char *text, unsigned long col[ColLast], Bool highlight) {
-	int x, y, w, h;
-	static char buf[256];
-	unsigned int len, olen;
-	XGCValues gcv;
-	XRectangle r = { dc.x, dc.y, dc.w, dc.h };
-
-	XSetForeground(dpy, dc.gc, col[ColBG]);
-	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-	if(!text)
-		return;
-	w = 0;
-	olen = len = strlen(text);
-	if(len >= sizeof(buf))
-		len = sizeof(buf) - 1;
-	memcpy(buf, text, len);
-	buf[len] = 0;
-	h = dc.font.ascent + dc.font.descent;
-	y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
-	x = dc.x + (h / 2);
+void
+drawtext(DC *dc, const char *text, unsigned long col[ColLast]) {
+	char buf[BUFSIZ];
+	size_t mn, n = strlen(text);
+
 	/* shorten text if necessary */
-	while(len && (w = textnw(buf, len)) > dc.w - h)
-		buf[--len] = 0;
-	if(len < olen) {
-		if(len > 1)
-			buf[len - 1] = '.';
-		if(len > 2)
-			buf[len - 2] = '.';
-		if(len > 3)
-			buf[len - 3] = '.';
-	}
-	if(w > dc.w)
-		return; /* too long */
-	gcv.foreground = col[ColFG];
-	if(dc.font.set) {
-		XChangeGC(dpy, dc.gc, GCForeground, &gcv);
-		XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
-	}
-	else {
-		gcv.font = dc.font.xfont->fid;
-		XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
-		XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
-	}
-	if(highlight) {
-		r.x = dc.x + 2;
-		r.y = dc.y + 2;
-		r.width = r.height = (h + 2) / 4;
-		XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
-	}
+	for(mn = MIN(n, sizeof buf); textnw(dc, text, mn) + dc->font.height/2 > dc->w; 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);
 }
 
-/* extern */
-
 void
-drawall(void) {
-	Client *c;
+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;
 
-	for(c = clients; c; c = getnext(c->next))
-		drawtitle(c);
-	drawstatus();
+	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
-drawstatus(void) {
-	int i, x;
-
-	dc.x = dc.y = 0;
-	for(i = 0; i < ntags; i++) {
-		dc.w = textw(tags[i]);
-		if(seltag[i])
-			drawtext(tags[i], dc.sel, sel && sel->tags[i]);
-		else
-			drawtext(tags[i], dc.norm, sel && sel->tags[i]);
-		dc.x += dc.w;
-	}
-	dc.w = bmw;
-	drawtext(arrange == dofloat ?  FLOATSYMBOL : TILESYMBOL, dc.status, False);
-	x = dc.x + dc.w;
-	dc.w = textw(stext);
-	dc.x = bw - dc.w;
-	if(dc.x < x) {
-		dc.x = x;
-		dc.w = bw - x;
-	}
-	drawtext(stext, dc.status, False);
-	if((dc.w = dc.x - x) > bh) {
-		dc.x = x;
-		drawtext(sel ? sel->name : NULL, sel ? dc.sel : dc.norm, False);
+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);
 	}
-	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
-	XSync(dpy, False);
+	exit(EXIT_FAILURE);
 }
 
 void
-drawtitle(Client *c) {
-	if(c == sel && issel) {
-		drawstatus();
-		XUnmapWindow(dpy, c->twin);
-		XSetWindowBorder(dpy, c->win, dc.sel[ColBG]);
-		return;
-	}
-	XSetWindowBorder(dpy, c->win, dc.norm[ColBG]);
-	XMapWindow(dpy, c->twin);
-	dc.x = dc.y = 0;
-	dc.w = c->tw;
-	drawtext(c->name, dc.norm, False);
-	XCopyArea(dpy, dc.drawable, c->twin, dc.gc, 0, 0, c->tw, c->th, 0, 0);
-	XSync(dpy, False);
+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(const char *colstr) {
-	Colormap cmap = DefaultColormap(dpy, screen);
+getcolor(DC *dc, const char *colstr) {
+	Colormap cmap = DefaultColormap(dc->dpy, DefaultScreen(dc->dpy));
 	XColor color;
 
-	if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
-		eprint("error, cannot allocate color '%s'\n", colstr);
+	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
-setfont(const char *fontstr) {
-	char **missing, *def;
-	int i, n;
-
-	missing = NULL;
-	setlocale(LC_ALL, "");
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
-	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
-	if(missing) {
-		while(n--)
-			fprintf(stderr, "missing fontset: %s\n", missing[n]);
-		XFreeStringList(missing);
-		if(dc.font.set) {
-			XFreeFontSet(dpy, dc.font.set);
-			dc.font.set = NULL;
-		}
+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);
 	}
-	if(dc.font.set) {
-		XFontSetExtents *font_extents;
-		XFontStruct **xfonts;
-		char **font_names;
-		dc.font.ascent = dc.font.descent = 0;
-		font_extents = XExtentsOfFontSet(dc.font.set);
-		n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
-		for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
-			if(dc.font.ascent < (*xfonts)->ascent)
-				dc.font.ascent = (*xfonts)->ascent;
-			if(dc.font.descent < (*xfonts)->descent)
-				dc.font.descent = (*xfonts)->descent;
-			xfonts++;
-		}
+	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 {
-		if(dc.font.xfont)
-			XFreeFont(dpy, dc.font.xfont);
-		dc.font.xfont = NULL;
-		dc.font.xfont = XLoadQueryFont(dpy, fontstr);
-		if (!dc.font.xfont)
-			dc.font.xfont = XLoadQueryFont(dpy, "fixed");
-		if (!dc.font.xfont)
-			eprint("error, cannot init 'fixed' font\n");
-		dc.font.ascent = dc.font.xfont->ascent;
-		dc.font.descent = dc.font.xfont->descent;
+		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.width);
+	}
+	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;
 	}
-	dc.font.height = dc.font.ascent + dc.font.descent;
+	return XTextWidth(dc->font.xfont, text, len);
 }
 
-unsigned int
-textw(const char *text) {
-	return textnw(text, strlen(text)) + dc.font.height;
+int
+textw(DC *dc, const char *text) {
+	return textnw(dc, text, strlen(text)) + dc->font.height;
 }