From aafeaf731701e528f4ae9d7c7432b3e92fee4392 Mon Sep 17 00:00:00 2001
From: Anselm R Garbe <anselm@garbe.us>
Date: Sun, 9 Dec 2012 19:11:11 +0100
Subject: continued with draw.c and draw.h implementation, now the integration
 begins

---
 draw.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 61 insertions(+), 14 deletions(-)

(limited to 'draw.c')

diff --git a/draw.c b/draw.c
index e88a70c..fa340ff 100644
--- a/draw.c
+++ b/draw.c
@@ -1,6 +1,7 @@
 /* See LICENSE file for copyright and license details. */
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <X11/Xlib.h>
 
 #include "draw.h"
@@ -55,7 +56,6 @@ draw_font_create(Draw *draw, const char *fontname) {
 	if(font->set) {
 		XFontStruct **xfonts;
 		char **font_names;
-
 		XExtentsOfFontSet(font->set);
 		n = XFontsOfFontSet(font->set, &xfonts, &font_names);
 		while(n--) {
@@ -107,49 +107,96 @@ draw_col_free(Draw *draw, Col *col) {
 
 void
 draw_setfont(Draw *draw, Fnt *font) {
-	if(!draw || !font)
+	if(!draw)
 		return;
 	draw->font = font;
 }
 
 void
 draw_setfg(Draw *draw, Col *col) {
-	if(!draw || !col) 
+	if(!draw) 
 		return;
 	draw->fg = col;
 }
 
 void
 draw_setbg(Draw *draw, Col *col) {
-	if(!draw || !col)
+	if(!draw)
 		return;
 	draw->bg = col;
 }
 
 void
-draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
-	if(!draw)
+draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h, Bool filled, Bool empty, Bool invert) {
+	int dx;
+
+	if(!draw || !draw->font || !draw->fg || !draw->bg)
 		return;
-	/* TODO: draw the rectangle */
+	XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+	dx = (draw->font->ascent + draw->font->descent + 2) / 4;
+	if(filled)
+		XFillRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx+1, dx+1);
+	else if(empty)
+		XDrawRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx, dx);
 }
 
 void
-draw_text(Draw *draw, int x, int y, const char *text) {
-	if(!draw)
+draw_text(Draw *draw, int x, int y, unsigned int w, unsigned int h, const char *text, Bool invert) {
+	char buf[256];
+	int i, tx, ty, len, olen;
+	TextExtents tex;
+
+	if(!draw || !draw->fg || !draw->bg)
 		return;
-	/* TODO: draw the text */
+	XSetForeground(draw->dpy, draw->gc, invert ? draw->fg->rgb : draw->bg->rgb);
+	XFillRectangle(draw->dpy, draw->drawable, draw->gc, x, y, w, h);
+	if(!text || !draw->font)
+		return;
+	olen = strlen(text);
+	draw_getextents(draw, text, olen, &tex);
+	ty = y + (h / 2) - tex.yOff;
+	tx = x + tex.xOff;
+	/* shorten text if necessary */
+	for(len = MIN(olen, sizeof buf); len && tex.w > w - tex.h; len--)
+		draw_getextents(draw, text, len, &tex);
+	if(!len)
+		return;
+	memcpy(buf, text, len);
+	if(len < olen)
+		for(i = len; i && i > len - 3; buf[--i] = '.');
+	XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+	if(draw->font->set)
+		XmbDrawString(draw->dpy, draw->drawable, draw->font->set, draw->gc, tx, ty, buf, len);
+	else
+		XDrawString(draw->dpy, draw->drawable, draw->gc, tx, ty, buf, len);
 }
 
 void
 draw_map(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
 	if(!draw)
 		return;
-	/* TODO: map the draw contents in the region */
+	XCopyArea(draw->dpy, draw->drawable, draw->win, draw->gc, x, y, w, h, x, y);
+	XSync(draw->dpy, False);
 }
 
+
 void
-draw_getextents(Draw *draw, const char *text, TextExtents *extents) {
-	if(!draw || !extents)
+draw_getextents(Draw *draw, const char *text, unsigned int len, TextExtents *extents) {
+	XRectangle r;
+
+	if(!draw || !draw->font || !text)
 		return;
-	/* TODO: get extents */
+	if(draw->font->set) {
+		XmbTextExtents(draw->font->set, text, len, NULL, &r);
+		extents->xOff = r.x;
+		extents->yOff = r.y;
+		extents->w = r.width;
+		extents->h = r.height;
+	}
+	else {
+		extents->h = draw->font->ascent + draw->font->descent;
+		extents->w = XTextWidth(draw->font->xfont, text, len);
+		extents->xOff = extents->h / 2;
+		extents->yOff = (extents->h / 2) + draw->font->ascent;
+	}
 }
-- 
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