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/*
 * (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */
#include "dwm.h"

#include <stdio.h>
#include <string.h>
#include <X11/Xlocale.h>

/* static */

static void
drawborder(void)
{
	XPoint points[5];

	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
	XSetForeground(dpy, dc.gc, dc.border);
	points[0].x = dc.x;
	points[0].y = dc.y;
	points[1].x = dc.w - 1;
	points[1].y = 0;
	points[2].x = 0;
	points[2].y = dc.h - 1;
	points[3].x = -(dc.w - 1);
	points[3].y = 0;
	points[4].x = 0;
	points[4].y = -(dc.h - 1);
	XDrawLines(dpy, dc.drawable, dc.gc, points, 5, CoordModePrevious);
}

static unsigned int
textnw(char *text, unsigned int len)
{
	XRectangle r;

	if(dc.font.set) {
		XmbTextExtents(dc.font.set, text, len, NULL, &r);
		return r.width;
	}
	return XTextWidth(dc.font.xfont, text, len);
}

static void
drawtext(const char *text, Bool invert, Bool border)
{
	int x, y, w, h;
	static char buf[256];
	unsigned int len;
	XGCValues gcv;
	XRectangle r = { dc.x, dc.y, dc.w, dc.h };

	XSetForeground(dpy, dc.gc, invert ? dc.fg : dc.bg);
	XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);

	w = 0;
	if(border)
		drawborder();

	if(!text)
		return;

	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);

	/* shorten text if necessary */
	while(len && (w = textnw(buf, len)) > dc.w - h)
		buf[--len] = 0;

	if(w > dc.w)
		return; /* too long */

	gcv.foreground = invert ? dc.bg : dc.fg;
	gcv.background = invert ? dc.fg : dc.bg;
	if(dc.font.set) {
		XChangeGC(dpy, dc.gc, GCForeground | GCBackground, &gcv);
		XmbDrawImageString(dpy, dc.drawable, dc.font.set, dc.gc,
				x, y, buf, len);
	}
	else {
		gcv.font = dc.font.xfont->fid;
		XChangeGC(dpy, dc.gc, GCForeground | GCBackground | GCFont, &gcv);
		XDrawImageString(dpy, dc.drawable, dc.gc, x, y, buf, len);
	}
}

/* extern */

void
drawall()
{
	Client *c;

	for(c = clients; c; c = getnext(c->next))
		drawtitle(c);
	drawstatus();
}

void
drawstatus()
{
	int i, x;
	Bool istile = arrange == dotile;

	dc.x = dc.y = 0;
	dc.w = bw;
	drawtext(NULL, !istile, False);

	dc.w = 0;
	for(i = 0; i < TLast; i++) {
		dc.x += dc.w;
		dc.w = textw(tags[i]);
		if(istile)
			drawtext(tags[i], (i == tsel), True);
		else
			drawtext(tags[i], (i != tsel), True);
	}
	x = dc.x + dc.w;
	dc.w = textw(stext);
	dc.x = bx + bw - dc.w;
	drawtext(stext, !istile, False);
	if(sel && ((dc.w = dc.x - x) >= bh)) {
		dc.x = x;
		drawtext(sel->name, istile, True);
	}
	XCopyArea(dpy, dc.drawable, barwin, dc.gc, 0, 0, bw, bh, 0, 0);
	XSync(dpy, False);
}

void
drawtitle(Client *c)
{
	int i;
	Bool istile = arrange == dotile;

	if(c == sel) {
		drawstatus();
		XUnmapWindow(dpy, c->title);
		XSetWindowBorder(dpy, c->win, dc.fg);
		return;
	}

	XSetWindowBorder(dpy, c->win, dc.bg);
	XMapWindow(dpy, c->title);

	dc.x = dc.y = 0;

	dc.w = 0;
	for(i = 0; i < TLast; i++) {
		if(c->tags[i]) {
			dc.x += dc.w;
			dc.w = textw(c->tags[i]);
			drawtext(c->tags[i], !istile, True);
		}
	}
	dc.x += dc.w;
	dc.w = textw(c->name);
	drawtext(c->name, !istile, True);
	XCopyArea(dpy, dc.drawable, c->title, dc.gc, 0, 0, c->tw, c->th, 0, 0);
	XSync(dpy, False);
}

unsigned long
getcolor(const char *colstr)
{
	Colormap cmap = DefaultColormap(dpy, screen);
	XColor color;

	XAllocNamedColor(dpy, cmap, colstr, &color, &color);
	return color.pixel;
}

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;
		}
	}
	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++;
		}
	}
	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.height = dc.font.ascent + dc.font.descent;
}

unsigned int
textw(char *text)
{
	return textnw(text, strlen(text)) + dc.font.height;
}
span class="w"> ShortcutNum++; } if (ShortcutNum >= ShortcutTotal) /* * Roll around to the last Shortcut in the list. - FM */ ShortcutNum = 0; if ((cp = (char *) HTList_objectAt(jtp->history, ShortcutNum)) != NULL) { LYStrNCpy(buf, cp, sizeof(buf) - 1); if (jump_buffer && jtp->shortcut && !strcmp(buf, jtp->shortcut)) { _statusline(EDIT_CURRENT_SHORTCUT); } else if ((jump_buffer && ShortcutTotal == 2) || (!jump_buffer && ShortcutTotal == 1)) { _statusline(EDIT_THE_PREV_SHORTCUT); } else { _statusline(EDIT_A_PREV_SHORTCUT); } if ((ch = LYGetStr(buf, VISIBLE, sizeof(buf), recall)) < 0) { /* * User cancelled the jump via ^G. */ HTInfoMsg(CANCELLED); return NULL; } goto check_recall; } } else if (recall && ch == DNARROW) { if (FirstShortcutRecall) { /* * Use the first Shortcut in the list. - FM */ FirstShortcutRecall = FALSE; ShortcutNum = ShortcutTotal - 1; } else { /* * Advance to the next Shortcut in the list. - FM */ ShortcutNum--; } if (ShortcutNum < 0) /* * Roll around to the first Shortcut in the list. - FM */ ShortcutNum = ShortcutTotal - 1; if ((cp = (char *) HTList_objectAt(jtp->history, ShortcutNum)) != NULL) { LYStrNCpy(buf, cp, sizeof(buf) - 1); if (jump_buffer && jtp->shortcut && !strcmp(buf, jtp->shortcut)) { _statusline(EDIT_CURRENT_SHORTCUT); } else if ((jump_buffer && ShortcutTotal == 2) || (!jump_buffer && ShortcutTotal == 1)) { _statusline(EDIT_THE_PREV_SHORTCUT); } else { _statusline(EDIT_A_PREV_SHORTCUT); } if ((ch = LYGetStr(buf, VISIBLE, sizeof(buf), recall)) < 0) { /* * User cancelled the jump via ^G. */ HTInfoMsg(CANCELLED); return NULL; } goto check_recall; } } seeking.key = bp; found = (JumpDatum *) bsearch((char *) &seeking, (char *) jtp->table, (size_t) jtp->nel, sizeof(JumpDatum), LYCompare); if (!found) { user_message("Unknown target '%s'", buf); LYSleepAlert(); } StrAllocCopy(jtp->shortcut, bp); LYAddJumpShortcut(jtp->history, jtp->shortcut); return found ? found->url : NULL; } static unsigned LYRead_Jumpfile(struct JumpTable *jtp) { struct stat st; unsigned int nel; char *mp; int fd; #ifdef VMS int blocksize = 1024; FILE *fp; BOOL IsStream_LF = TRUE; #endif /* VMS */ char *cp; unsigned i; if (isEmpty(jtp->file)) return 0; CTRACE((tfp, "Read Jumpfile %s\n", jtp->file)); if (stat(jtp->file, &st) < 0) { HTAlert(CANNOT_LOCATE_JUMP_FILE); return 0; } /* allocate storage to read entire file */ if ((mp = typecallocn(char, (size_t) st.st_size + 1)) == NULL) { HTAlert(OUTOF_MEM_FOR_JUMP_FILE); return 0; } #ifdef VMS if (st.st_fab_rfm != (char) FAB$C_STMLF) { /** It's a record-oriented file. **/ IsStream_LF = FALSE; if ((fp = fopen(jtp->file, "r", "mbc=32")) == NULL) { HTAlert(CANNOT_OPEN_JUMP_FILE); FREE(mp); return 0; } } else if ((fd = open(jtp->file, O_RDONLY, "mbc=32")) < 0) #else if ((fd = open(jtp->file, O_RDONLY)) < 0) #endif /* VMS */ { HTAlert(CANNOT_OPEN_JUMP_FILE); FREE(mp); return 0; } #ifdef VMS if (IsStream_LF) { /** Handle as a stream. **/ #endif /* VMS */ if (read(fd, mp, (size_t) st.st_size) < st.st_size) { HTAlert(ERROR_READING_JUMP_FILE); FREE(mp); return 0; } mp[st.st_size] = '\0'; close(fd); #ifdef VMS } else { /** Handle as a series of records. **/ if (fgets(mp, blocksize, fp) == NULL) { HTAlert(ERROR_READING_JUMP_FILE); FREE(mp); return 0; } else while (fgets(mp + strlen(mp), blocksize, fp) != NULL) { ; } LYCloseInput(fp); } #endif /* VMS */ /* quick scan for approximate number of entries */ nel = 0; cp = mp; while ((cp = strchr(cp, '\n')) != NULL) { nel++; cp++; } jtp->table = (JumpDatum *) malloc(nel * sizeof(JumpDatum)); if (jtp->table == NULL) { HTAlert(OUTOF_MEM_FOR_JUMP_TABLE); FREE(mp); return 0; } cp = jtp->mp = mp; for (i = 0; i < nel;) { if (StrNCmp(cp, "<!--", 4) == 0 || StrNCmp(cp, "<dl>", 4) == 0) { cp = strchr(cp, '\n'); if (cp == NULL) break; cp++; continue; } cp = LYstrstr(cp, "<dt>"); if (cp == NULL) break; cp += 4; jtp->table[i].key = cp; cp = LYstrstr(cp, "<dd>"); if (cp == NULL) break; *cp = '\0'; cp += 4; cp = LYstrstr(cp, "href=\""); if (cp == NULL) break; cp += 6; jtp->table[i].url = cp; cp = strchr(cp, '"'); if (cp == NULL) break; *cp = '\0'; cp++; cp = strchr(cp, '\n'); if (cp == NULL) break; cp++; CTRACE((tfp, "Read jumpfile[%u] key='%s', url='%s'\n", i, jtp->table[i].key, jtp->table[i].url)); i++; if (!cp) break; } return i; } static int LYCompare(const void *e1, const void *e2) { return strcasecomp(((const JumpDatum *) e1)->key, ((const JumpDatum *) e2)->key); }