bug in context system ?

Tom?? Stan?k <[email protected]> Thu, 20 Feb 2003 20:32:54 +0100

Newsgroups	gmane.comp.video.picogui.devel
Message-ID	<[email protected]>

hi

it seems, that context system won't delete (or perhaps any way work with(setcontext, etc.))(?) widgets in context higher than 127.

this state can be easily achieved becouse:
ctx = pgEnterContext();
pgDeleteHandleContext(ctx);

pgEnterContext() == ctx+1


(is it bug, or there cannot be more than 127 contexts ?)

attaching testcase app.

context.c (text/x-csrc, 1.5 KB)

#include <picogui.h>
#include <stdio.h>

pghandle left, right, main_w;
pghandle ctx;

int add(struct pgEvent *evt){
	pgNewWidget(PG_WIDGET_BUTTON, PG_DERIVE_INSIDE, left);
	pgSetWidget(PGDEFAULT, PG_WP_TEXT, pgNewString("x"), 0);
	return 0;
}

int rm(struct pgEvent *evt){
	printf("deleting: %ld\n",ctx);
	pgDeleteHandleContext(ctx);
	//pgLeaveContext();
	ctx = pgEnterContext();
	printf("entered: %ld\n",ctx);
	return 0;
}

int update(struct pgEvent *evt){
	pgUpdate();
	return 0;
}

int main(){
	int i;

	pgInit(0, NULL);
	pgRegisterApp(PG_APP_NORMAL, NULL, 0);

	main_w = pgNewWidget(PG_WIDGET_BOX, 0, 0);

	left = pgNewWidget(PG_WIDGET_LABEL, PG_DERIVE_INSIDE, main_w);
	pgSetWidget(PGDEFAULT, PG_WP_SIDE, PG_S_LEFT, 0);

	right = pgNewWidget(PG_WIDGET_LABEL, PG_DERIVE_INSIDE, main_w);
	pgSetWidget(PGDEFAULT, PG_WP_SIDE, PG_S_RIGHT, 0);

	pgNewWidget(PG_WIDGET_BUTTON, PG_DERIVE_INSIDE, right);
	pgSetWidget(PGDEFAULT, PG_WP_TEXT, pgNewString("add button"), 0);
	pgBind(PGDEFAULT, PGBIND_ANY, add, NULL);

	pgNewWidget(PG_WIDGET_BUTTON, PG_DERIVE_INSIDE, right);
	pgSetWidget(PGDEFAULT, PG_WP_TEXT, pgNewString("rm context"), 0);
	pgBind(PGDEFAULT, PGBIND_ANY, rm, NULL);

	pgNewWidget(PG_WIDGET_BUTTON, PG_DERIVE_INSIDE, right);
	pgSetWidget(PGDEFAULT, PG_WP_TEXT, pgNewString("update"), 0);
	pgBind(PGDEFAULT, PGBIND_ANY, update, NULL);

	pgNewWidget(PG_WIDGET_BUTTON, PG_DERIVE_INSIDE, right);
	pgSetWidget(PGDEFAULT, PG_WP_TEXT, pgNewString("dummy"), 0);

	pgUpdate();

	ctx = pgEnterContext();

	for (i=0; i<125; i++) rm(NULL);

	pgEventLoop();

	return 0;
}