From 7aeae86d36a1a04e93bb4be2216cb735acfab714 Mon Sep 17 00:00:00 2001
From: Peter Mikkelsen <petermikkelsen10@gmail.com>
Date: Sun, 11 Feb 2024 15:18:27 +0000
Subject: More work

---
 props.c | 151 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 141 insertions(+), 10 deletions(-)

(limited to 'props.c')

diff --git a/props.c b/props.c
index 40ebcdd..c36144d 100644
--- a/props.c
+++ b/props.c
@@ -1,16 +1,55 @@
 #include <u.h>
 #include <libc.h>
 #include <draw.h>
+#include <ctype.h>
+#include <fcall.h>
+#include <thread.h>
+#include <9p.h>
 
 #include "guifs.h"
 
 #define Eparse "could not parse property"
 
+int
+allspace(char *r)
+{
+	while(*r){
+		if(!isspace(*r))
+			return 0;
+		r++;
+	}
+	return 1;
+}
+
 PropVal
 defbackground(void)
 {
 	PropVal v;
-	v.colour = mkcolour(DBlack);
+	v.colour = mkcolour(DWhite);
+	return v;
+}
+
+PropVal
+defspacing(void)
+{
+	PropVal v;
+	v.spacing = emalloc(sizeof(Spacing));
+	return v;
+}
+
+PropVal
+deforientation(void)
+{
+	PropVal v;
+	v.orientation = Horizontal;
+	return v;
+}
+
+PropVal
+defbordercolour(void)
+{
+	PropVal v;
+	v.colour = mkcolour(DRed);
 	return v;
 }
 
@@ -23,38 +62,130 @@ printcolour(PropVal p)
 	return buf;
 }
 
+char *
+printspacing(PropVal p)
+{
+	int bufsize = 256;
+	char *buf = emalloc(bufsize);
+	snprint(buf, bufsize, "%d %d %d %d\n", p.spacing->up, p.spacing->right, p.spacing->down, p.spacing->left);
+	return buf;
+}
+
+char *
+printorientation(PropVal p)
+{
+	char *str;
+	switch(p.orientation){
+	case Horizontal:
+		str = estrdup9p("horizontal\n");
+		break;
+	case Vertical:
+		str = estrdup9p("vertical\n");
+		break;
+	default:
+		str = estrdup9p("???\n");
+		break;
+	}
+	return str;
+}
+
 char *
 parsecolour(char *str, PropVal *p)
 {
 	char *r;
 	ulong c = strtoul(str, &r, 16);
-	if((r - str) != 8)
+	if((r - str) != 8 || !allspace(r))
 		return Eparse;
 	(*p).colour = mkcolour(c);
 	return nil;
 }
 
+char *
+parsespacing(char *str, PropVal *p)
+{
+	USED(p);
+	char *fields[5];
+	int spacings[4];
+
+	int n = getfields(str, fields, nelem(fields), 0, " ");
+	if(!(n == 4 || n == 2 || n == 1))
+		return Eparse;
+
+	for(int i = 0; i < n; i++){
+		char *r;
+		spacings[i] = strtol(fields[i], &r, 10);
+		if(!allspace(r))
+			return Eparse;
+	}
+
+	Spacing *s = emalloc(sizeof(Spacing));
+	switch(n){
+	case 1:
+		s->up = s->down = s->left = s->right = spacings[0];
+		break;
+	case 2:
+		s->up = s->down = spacings[0];
+		s->left = s->right = spacings[1];
+		break;
+	case 4:
+		s->up = spacings[0];
+		s->right = spacings[1];
+		s->down = spacings[2];
+		s->left = spacings[3];
+		break;
+	}
+	(*p).spacing = s;
+
+	return nil;
+}
+
+char *
+parseorientation(char *str, PropVal *p)
+{
+	if(strncmp(str, "horizontal", 10) == 0 && allspace(str+10))
+		(*p).orientation = Horizontal;
+	else if(strncmp(str, "vertical", 8) == 0 && allspace(str+8))
+		(*p).orientation = Vertical;
+	else
+		return Eparse;
+	return nil;
+}
+
 PropVal
 getprop(GuiElement *g, int tag)
 {
-	for(int i = 0; i < g->nprops; i++)
+	PropVal *v = nil;
+	rlock(&g->lock);
+	for(int i = 0; i < g->nprops && v == nil; i++)
 		if(g->props[i].tag == tag)
-			return g->props[i].val;
-	sysfatal("invalid prop for this gui element");
+			v = &g->props[i].val;
+	runlock(&g->lock);
+
+	if(v == nil)
+		sysfatal("invalid prop for this gui element");
+	else
+		return *v;
 }
 
 void
 setprop(GuiElement *g, int tag, PropVal val)
 {
+	wlock(&g->lock);
 	/* TODO: free old propval */
 	for(int i = 0; i < g->nprops; i++)
-		if(g->props[i].tag == tag){
+		if(g->props[i].tag == tag)
 			g->props[i].val = val;
-			updategui(0);
-			return;
-		}
+	wunlock(&g->lock);
+	updategui(0);
 }
 
 PropSpec propspecs[Pmax] = {
 	[Pbackground] = {"background",	defbackground,	printcolour,	parsecolour},
-};
\ No newline at end of file
+	[Pborder] = {"border", 	defspacing,	printspacing,	parsespacing},
+	[Pmargin] = {"margin", 	defspacing,	printspacing,	parsespacing},
+	[Ppadding] = {"padding", defspacing,	printspacing,	parsespacing},
+	[Porientation] = {"orientation",	deforientation,	printorientation,	parseorientation},
+	[Pbordercolour] = {"bordercolour",	defbordercolour,	printcolour,	parsecolour},
+};
+
+int baseprops[nbaseprops] = {Pborder, Pmargin, Ppadding, Pbordercolour};
\ No newline at end of file
-- 
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