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From: | Fu Steve X |
Subject: | addCDKScrollItem function in CDK |
Date: | Wed, 23 Mar 2005 13:37:25 -0500 |
Hi,
The simple test code is based on scroll_ex.c. I just bind a callback to 'a' to invoke the addCDKScrollItem function. The items in the SCROLL starts to get garbled from top down if I keep pressing 'a' for 4 or 5 times. Scrolling the items up and down doesn't refresh the list correctly either. But it looks OK if I dump out chtype2Char(scrollp->item[0]).
Is that a bug?
Thanks!
Steve
/* $Id: scroll_ex.c,v 1.16 2004/08/28 01:02:30 tom Exp $ */
#include <cdk.h>
#ifdef HAVE_XCURSES
char *XCursesProgramName="scroll_ex";
#endif
static int addItemCB(EObjectType cdktype GCC_UNUSED, void *object, void *clientData
, chtype input GCC_UNUSED)
{
CDKSCROLL *s = (CDKSCROLL*) object;
addCDKScrollItem(s, "junk");
refreshCDKScreen(ScreenOf(s));
return (TRUE);
}
/*
* This program demonstrates the Cdk scrolling list widget.
*/
int main(int argc, char **argv)
{
/* Declare variables. */
CDKSCREEN *cdkscreen = 0;
CDKSCROLL *scrollList = 0;
CDKSCROLL *scrollList2 = 0;
WINDOW *cursesWin = 0;
char *title = "<C></5>Pick a file";
char **item = 0;
char *mesg[5], temp[256];
int selection, count;
CDK_PARAMS params;
CDKparseParams(argc, argv, ¶ms, CDK_CLI_PARAMS);
/* Set up CDK. */
cursesWin = initscr();
cdkscreen = initCDKScreen (cursesWin);
/* Set up CDK Colors. */
initCDKColor();
/* Use the current diretory list to fill the radio list. */
count = CDKgetDirectoryContents (".", &item);
/* Create the scrolling list. */
scrollList = newCDKScroll (cdkscreen,
CDKparamValue(¶ms, 'X', CENTER),
CDKparamValue(¶ms, 'Y', 0),
RIGHT,
CDKparamValue(¶ms, 'H', 10),
CDKparamValue(¶ms, 'W', 50),
title, item, count,
FALSE,
A_REVERSE,
CDKparamValue(¶ms, 'N', TRUE),
CDKparamValue(¶ms, 'S', FALSE));
bindCDKObject (vSCROLL, scrollList, 'a', addItemCB, NULL);
/* Activate the scrolling list. */
selection = activateCDKScroll (scrollList, 0);
/* Determine how the widget was exited. */
if (scrollList->exitType == vESCAPE_HIT)
{
mesg[0] = "<C>You hit escape. No file selected.";
mesg[1] = "",
mesg[2] = "<C>Press any key to continue.";
popupLabel (cdkscreen, mesg, 3);
}
else if (scrollList->exitType == vNORMAL)
{
mesg[0] = "<C>You selected the following file";
sprintf (temp, "<C>%.*s", (int)(sizeof(temp) - 20), item[selection]);
mesg[1] = copyChar (temp);
mesg[2] = "<C>Press any key to continue.";
popupLabel (cdkscreen, mesg, 3);
freeChar (mesg[1]);
}
/* Clean up. */
CDKfreeStrings (item);
destroyCDKScroll (scrollList);
destroyCDKScreen (cdkscreen);
endCDK();
exit (EXIT_SUCCESS);
}
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