shithub: mongrel

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show a progress bar when loading a mailbox

	this gives a visual feedback that something is actually happening

--- a/a.h

+++ b/a.h

@@ -65,7 +65,7 @@

 };

 Mailbox* mboxinit(char *name);

-void mboxload(Mailbox*);

+void mboxload(Mailbox*, Channel *c);

 void mesgloadbody(Message*);

 int mesgmarkseen(Mailbox*, Message*);

 int mboxadd(Mailbox *mbox, char *path);

--- a/main.c

+++ b/main.c

@@ -30,6 +30,8 @@

 	BACK,

 	TEXT,

 	BORD,

+	PBRD,

+	PBCK,

 	NCOLS,

 };

@@ -38,6 +40,7 @@

 Channel *showc;

 Channel *selc;

 Channel *eventc;

+Channel *loadc;

 Mailbox *mboxes[16];

 int nmboxes;

 char *mbmenustr[16] = {0};

@@ -97,6 +100,59 @@

 }

 void

+loadproc(void *v)

+{

+	Channel *c;

+

+	c = v;

+	mboxload(mbox, c);

+}

+

+void

+drawprogress(Rectangle r, Rectangle pr)

+{

+	draw(screen, pr, cols[PBCK], nil, ZP);

+	border(screen, r, 2, cols[PBRD], ZP);	

+	flushimage(display, 1);

+}

+

+void

+loadmbox(void)

+{

+	ulong total, count, n;

+	Point sp, p;

+	Rectangle r, pr;

+	int pc;

+	char buf[255] = {0};

+

+	draw(screen, screen->r, cols[BACK], nil, ZP);

+	p.x = (Dx(screen->r)-200)/2;

+	p.y = (Dy(screen->r)-25)/2;

+	r = rectaddpt(rectaddpt(Rect(0, 0, 200, 25), p), screen->r.min);

+	snprint(buf, sizeof buf, "Loading %s...", mbox->name);

+	sp.x = (Dx(screen->r)-stringwidth(font, buf))/2;

+	sp.y = r.min.y - font->height - 12 - screen->r.min.y;

+	string(screen, addpt(screen->r.min, sp), cols[TEXT], ZP, font, buf);

+	replclipr(screen, 1, insetrect(r, -2));

+	loadc = chancreate(sizeof(ulong), 1);

+	proccreate(loadproc, loadc, 8192);

+	total = recvul(loadc);

+	count = 0;

+	for(;;){

+		n = recvul(loadc);

+		if(n == 0)

+			break;

+		count += 1;

+		pc = 200*((double)count/total);

+		pr = rectaddpt(rectaddpt(Rect(0, 0, pc, 25), p), screen->r.min);

+		if(count % (total/100) == 0)

+			drawprogress(r, pr);

+	}

+	chanfree(loadc);

+	replclipr(screen, 1, screen->r);

+}

+

+void

 switchmbox(int n)

 {

 	if(mbox==mboxes[n])

@@ -103,7 +159,7 @@

 		return;

 	mbox = mboxes[n];

 	if(!mbox->loaded)

-		mboxload(mbox);

+		loadmbox();

 	indexswitch(mbox);

 	collapsed = 0;

 	resize();

@@ -194,6 +250,8 @@

 		cols[BACK] = theme->back;

 		cols[TEXT] = theme->text;

 		cols[BORD] = theme->title;

+		cols[PBRD] = theme->menubord;

+		cols[PBCK] = theme->menuback;

 	}else{

 		r = Rect(0, 0, 1, 1);

 		cols[BACK] = allocimage(display, r, screen->chan, 1, 0xFFFFFFFF);

--- a/mbox.c

+++ b/mbox.c

@@ -200,7 +200,7 @@

 }

 void

-mboxload(Mailbox *mb)

+mboxload(Mailbox *mb, Channel *c)

 {

 	Dir *d;

 	int n, fd, i;

@@ -214,6 +214,7 @@

 	close(fd);

 	qsort(d, n, sizeof *d, (int(*)(void*,void*))dircmp);

 	mb->list = mkmlist(n*1.5);

+	sendul(c, n-1); /* don't count ctl file */

 	for(i = 1; i < n; i++){

 		snprint(buf, sizeof buf, "%s/%s", mb->path, d[i].name);

 		if((d[i].qid.type & QTDIR)==0)

@@ -224,9 +225,11 @@

 		if((m->flags & Fseen) == 0)

 			++mb->unseen;

 		++mb->count;

+		sendul(c, 1);

 	}

 	free(d);

 	mb->loaded = 1;

+	sendul(c, 0);

 }

 int