shithub: guifs

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Add a basic textbox element

--- a/graphics.c

+++ b/graphics.c

@@ -54,6 +54,10 @@

 	}

 	if(Dx(g->rect) > 0 && Dy(g->rect) > 0){

+		/* Draw the background  */

+		Image *bg = getprop(g, Pbackground).colour->image;

+		draw(screen, g->rect, bg, nil, ZP);

+

 		spec.draw(g);

 		for(int i = 0; i < g->nchildren; i++)

@@ -65,8 +69,17 @@

 void

 drawcontainer(GuiElement *g)

 {

-	Image *bg = getprop(g, Pbackground).colour->image;

-	draw(screen, g->rect, bg, nil, ZP);

+	USED(g);

+}

+

+void

+drawtextbox(GuiElement *g)

+{

+	Rune *text = getprop(g, Ptext).text;

+	Image *fg = getprop(g, Ptextcolour).colour->image;

+	

+

+	runestring(screen, g->content.min, fg, ZP, font, text);

 }

 Colour *

--- a/guifs.h

+++ b/guifs.h

@@ -5,15 +5,18 @@

 	Ppadding,

 	Porientation,

 	Pbordercolour,

+	Ptext,

+	Ptextcolour,

 	Pmax,

 };

 enum {

-	nbaseprops = 4

+	nbaseprops = 5

 };

 enum {

 	Gcontainer,

+	Gtextbox,

 	Gmax,

 };

@@ -46,11 +49,12 @@

 	Colour *colour;

 	Spacing *spacing;

 	int orientation;

+	Rune *text;

 };

 struct PropSpec {

 	char *name;

-	PropVal (*def)(void);

+	PropVal (*def)(int, int);

 	char *(*print)(PropVal);

 	char *(*parse)(char *, PropVal *);

 };

@@ -65,6 +69,7 @@

 	char *name;

 	void (*draw)(GuiElement *);

 	void (*layout)(GuiElement *, Rectangle);

+	int leafnode;

 	int nprops;

 	int *proptags;

 };

@@ -91,6 +96,7 @@

 	Rectangle border;

 	Rectangle rect;

+	Rectangle content;

 };

 extern GuiElement *root;

@@ -99,6 +105,7 @@

 extern int baseprops[nbaseprops];

 void *emalloc(ulong);

+int allspace(char *);

 Colour *mkcolour(ulong);

 void initgraphics(void);

@@ -105,8 +112,10 @@

 void layout(GuiElement *, Rectangle);

 void updategui(int);

 void drawcontainer(GuiElement *);

+void drawtextbox(GuiElement *);

 void layoutcontainer(GuiElement *, Rectangle);

+void layouttextbox(GuiElement *, Rectangle);

 PropVal getprop(GuiElement *, int);

 void setprop(GuiElement *, int, PropVal);

\ No newline at end of file

--- a/guispec.c

+++ b/guispec.c

@@ -4,8 +4,10 @@

 #include "guifs.h"

-int containerprops[] = {Pbackground, Porientation};

+int containerprops[] = {Porientation};

+int textboxprops[] = {Ptext, Ptextcolour};

 GuiSpec guispecs[Gmax] = {

-	[Gcontainer] = { "container",	drawcontainer,	layoutcontainer,	nelem(containerprops),	containerprops}

+	[Gcontainer] = { "container",	drawcontainer,	layoutcontainer,	0,	nelem(containerprops),	containerprops},

+	[Gtextbox] = { "textbox",	drawtextbox,	layouttextbox,		1,	nelem(textboxprops),	textboxprops},

 };

\ No newline at end of file

--- a/layout.c

+++ b/layout.c

@@ -35,6 +35,7 @@

 	wlock(&g->lock);

 	g->border = r1;

 	g->rect = r2;

+	g->content = r3;

 	wunlock(&g->lock);

 	rlock(&g->lock);

@@ -65,4 +66,11 @@

 		layout(g->children[i], r);

 		r = rectaddpt(r, Pt(dx, dy));

 	}

+}

+

+void

+layouttextbox(GuiElement *g, Rectangle r)

+{

+	USED(g);

+	USED(r);

 }

\ No newline at end of file

--- a/main.c

+++ b/main.c

@@ -101,13 +101,13 @@

 	for(int i = 0; i < nbaseprops; i++){

 		int tag = baseprops[i];

 		props[i].tag = tag;

-		props[i].val = propspecs[tag].def();

+		props[i].val = propspecs[tag].def(type, tag);

 		props[i].qid = mkpropqid(tag);

 	}

 	for(int i = 0; i < spec.nprops; i++){

 		int tag = spec.proptags[i];

 		props[i+nbaseprops].tag = tag;

-		props[i+nbaseprops].val = propspecs[tag].def();

+		props[i+nbaseprops].val = propspecs[tag].def(type, tag);

 		props[i+nbaseprops].qid = mkpropqid(tag);

 	}

@@ -195,9 +195,14 @@

 				fid->aux = g->parent;

 				*qid = g->parent->qid;

 			}

-		}else if(strcmp(name, "clone") == 0)

-			*qid = g->qclone;

-		else if(strcmp(name, "event") == 0)

+		}else if(strcmp(name, "clone") == 0){

+			rlock(&g->lock);

+			if(guispecs[g->type].leafnode)

+				err = Eexist;

+			else

+				*qid = g->qclone;

+			runlock(&g->lock);

+		}else if(strcmp(name, "event") == 0)

 			*qid = g->qevent;

 		else if(strcmp(name, "type") == 0)

 			*qid = g->qtype;

@@ -304,6 +309,11 @@

 	d->gid = estrdup9p(username);

 	d->muid = estrdup9p(username);

+	rlock(&g->lock);

+	if(guispecs[g->type].leafnode)

+		n++;

+	runlock(&g->lock);

+

 	if(n < Fmax){

 		d->length = 0;

@@ -427,7 +437,31 @@

 	switch(QID_TYPE(r->fid->qid)){

 	case Qtype:

-		err = "Can't switch type";

+		{

+			char *buf = emalloc(r->ifcall.count + 1);

+			buf[r->ifcall.count] = 0;

+			memcpy(buf, r->ifcall.data, r->ifcall.count);

+

+			int type;

+			for(type = 0; type < Gmax; type++){

+				char *name = guispecs[type].name;

+				int len = strlen(name);

+				if(strncmp(buf, name, len) == 0 && allspace(buf+len)){

+					rlock(&g->lock);

+					int canswitch = (g->nchildren == 0 || guispecs[type].leafnode == 0);

+					runlock(&g->lock);

+

+					if(canswitch)

+						settype(g, type);

+					else

+						err = "old node has children, and new node type can't";

+					break;

+				}

+			}

+			if(type == Gmax)

+				err = "no such gui element type";

+			free(buf);

+		}

 		break;

 	case Qprop:

 		{

--- a/props.c

+++ b/props.c

@@ -22,24 +22,75 @@

 }

 PropVal

-defbackground(void)

+defcolour(int gtag, int ptag)

 {

 	PropVal v;

-	v.colour = mkcolour(DWhite);

+	ulong col = DTransparent;

+

+	switch(ptag){

+	case Pbackground:

+		switch(gtag){

+		case Gcontainer:

+			col = DWhite;

+			break;

+		case Gtextbox:

+			col = 0xFFFFEAFF;

+			break;

+		}

+		break;

+	case Pbordercolour:

+		switch(gtag){

+		case Gtextbox:

+			col = DYellowgreen;

+			break;

+		default:

+			col = DRed;

+			break;

+		}

+		break;

+	case Ptextcolour:

+		col = DBlack;

+		break;

+	}

+

+	v.colour = mkcolour(col);

 	return v;

 }

 PropVal

-defspacing(void)

+defspacing(int gtag, int ptag)

 {

 	PropVal v;

 	v.spacing = emalloc(sizeof(Spacing));

+

+	int space = 0;

+

+	switch(ptag){

+	case Pborder:

+		switch(gtag){

+		case Gtextbox:

+			space = 4;

+			break;

+		}

+		break;

+	case Ppadding:

+		switch(gtag){

+		case Gtextbox:

+			space = 2;

+			break;

+		}

+		break;

+	}

+	v.spacing->up = v.spacing->down = v.spacing->left = v.spacing->right = space;

 	return v;

 }

 PropVal

-deforientation(void)

+deforientation(int gtag, int ptag)

 {

+	USED(gtag);

+	USED(ptag);

+

 	PropVal v;

 	v.orientation = Horizontal;

 	return v;

@@ -46,10 +97,14 @@

 }

 PropVal

-defbordercolour(void)

+deftext(int gtag, int ptag)

 {

+	USED(gtag);

+	USED(ptag);

+

 	PropVal v;

-	v.colour = mkcolour(DRed);

+	v.text = emalloc(sizeof(Rune));

+	v.text[0] = 0;

 	return v;

 }

@@ -90,6 +145,15 @@

 }

 char *

+printtext(PropVal p)

+{

+	char *str = smprint("%S", p.text);

+	if(str == nil)

+		sysfatal("smprint failed");

+	return str;

+}

+

+char *

 parsecolour(char *str, PropVal *p)

 {

 	char *r;

@@ -151,6 +215,16 @@

 	return nil;

 }

+char *

+parsetext(char *str, PropVal *p)

+{

+	Rune *rstr = runesmprint("%s", str);

+	if(rstr == nil)

+		sysfatal("runesmprint failed");

+	(*p).text = rstr;

+	return nil;

+}

+

 PropVal

 getprop(GuiElement *g, int tag)

 {

@@ -180,12 +254,14 @@

 }

 PropSpec propspecs[Pmax] = {

-	[Pbackground] = {"background",	defbackground,	printcolour,	parsecolour},

+	[Pbackground] = {"background",	defcolour,	printcolour,	parsecolour},

 	[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},

+	[Pbordercolour] = {"bordercolour",	defcolour,	printcolour,	parsecolour},

+	[Ptext] = {"text",	deftext,	printtext,	parsetext},

+	[Ptextcolour] = {"textcolour",	defcolour,	printcolour,	parsecolour},

 };

-int baseprops[nbaseprops] = {Pborder, Pmargin, Ppadding, Pbordercolour};

\ No newline at end of file

+int baseprops[nbaseprops] = {Pbackground, Pborder, Pmargin, Ppadding, Pbordercolour};

\ No newline at end of file

--- a/test.rc

+++ b/test.rc

@@ -9,10 +9,22 @@

 dir=/mnt/gui

 sleep $delay

+# split the window vertically into two, and make the top one a textbox

+echo vertical >> $dir/props/orientation

+textdir=$dir/`{cat $dir/clone}

+echo textbox >> $textdir/type

+

+fn show {

+	echo -n $* >> $textdir/props/text

+}

+

+dir=$dir/`{cat $dir/clone}

+

 colours=(FF0000 00FF00 0000FF FFFF00 00FFFF FF00FF FFFFFF 333333)

 for(colour in $colours){

 	dir=$dir/`{cat $dir/clone}			# Create a new sub element in the gui (for now, always a "container")

 	echo $colour^FF >> $dir/props/background	# Set the background

+	show 'setting background of '^$dir^' to 0x'^$colour

 	sleep $delay					# Wait a bit

 }

@@ -20,6 +32,7 @@

 for(colour in $colours){

 	subdir=$dir/`{cat $dir/clone}

 	echo $colour^FF >> $subdir/props/background

+	show 'setting background of '^$subdir^' to 0x'^$colour

 	sleep $delay

 }

@@ -26,6 +39,7 @@

 # Add some padding to all elements

 for(f in `{walk /mnt/gui/ | grep 'padding$'}){

 	echo 10 >> $f

+	show 'echo 10 >> '^$f

 	sleep $delay

 }

@@ -33,6 +47,7 @@

 for(f in `{walk /mnt/gui | grep $dir'/[0-9]+/props/border$'}){

 	echo 8888CCFF >> $f^colour

 	echo 5 >> $f

+	show 'echo 5 >> '^$f

 	sleep $delay

 }

@@ -39,11 +54,13 @@

 # Add some margin to the innermost elements

 for(f in `{walk /mnt/gui | grep $dir'/[0-9]+/props/margin'}){

 	echo 5 >> $f

+	show 'echo 5 >> '^$f

 	sleep $delay

 }

 # Make the inner container vertical

 echo vertical >> $dir/props/orientation

+show 'echo vertical >> '^$dir/props/orientation

 # when the script ends, the old text window draws over the gui. I will fix that later.

 # For now, i just make the script sleep for a long time