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#include "string_manip.h"
#include "calculator.h"
#include "list.h"
#include "PersVarList.h"
#ifdef MEMWATCH
#include "memwatch.h"
#endif
struct pers_var {
char *name;
char *exp;
};
static List persVars = NULL;
@implementation PersVarList
- (int)numberOfRowsInTableView:(NSTableView *)aTableView
{
return listLen(persVars);
}
- (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn*)col row:(int)rowIndex
{
struct pers_var * cursor = peekListElement(persVars, rowIndex);
if (! cursor) {
return @"BAD ROW";
}
if ([[col identifier] isEqualToString:@"value"]) {
return [NSString stringWithUTF8String:cursor->exp];
} else if ([[col identifier] isEqualToString:@"name"]) {
return [NSString stringWithUTF8String:(cursor->name)];
} else {
return @"BAD COLUMN";
}
}
- (void)tableView:(NSTableView*)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn*)col row:(int)rowIndex
{
struct pers_var *cursor = peekListElement(persVars, rowIndex);
NSMutableDictionary *temp = [NSMutableDictionary dictionaryWithCapacity:listLen(persVars)];
ListIterator li = NULL;
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
if ([[col identifier] isEqualToString:@"value"]) {
free(cursor->exp);
cursor->exp = strdup([anObject UTF8String]);
} else if ([[col identifier] isEqualToString:@"name"]) {
free(cursor->name);
cursor->name = strdup([anObject UTF8String]);
strstrip(' ',cursor->name);
}
li = getListIterator(persVars);
while ((cursor = (struct pers_var *)nextListElement(li)) != NULL) {
[temp setObject:[NSString stringWithUTF8String:cursor->exp]
forKey:[NSString stringWithUTF8String:cursor->name]];
}
[prefs setObject:temp forKey:@"persistentVariables"];
}
struct pers_var *getpersvar(char *key)
{
struct pers_var *cursor = NULL;
ListIterator li = NULL;
if (!persVars || key == NULL || *key == 0 || listLen(persVars) == 0) {
return NULL;
}
li = getListIterator(persVars);
while ((cursor = (struct pers_var *)nextListElement(li)) != NULL) {
if (!strncmp(cursor->name, key, strlen(cursor->name)+1))
break;
else
cursor = NULL;
}
freeListIterator(li);
return cursor;
}
int putpersvar(char *name, char *exp)
{
struct pers_var *cursor = NULL;
if (name == NULL || *name == 0) {
return -1;
}
cursor = getpersvar(name);
if (!cursor) {
cursor = calloc(1, sizeof(struct pers_var));
addToList(&persVars, cursor);
}
if (!cursor->name) {
cursor->name = strdup(name);
} else if (cursor->exp) {
free(cursor->exp);
}
cursor->exp = strdup(exp);
return 0;
}
int persvarexists(char* key)
{
struct pers_var *cursor = NULL;
ListIterator li = NULL;
if (!persVars || !strlen(key) || listLen(persVars) == 0) {
return 0;
}
li = getListIterator(persVars);
while ((cursor = (struct pers_var *)nextListElement(li)) != NULL) {
if (!strncmp(cursor->name, key, strlen(cursor->name) + 1))
break;
else
cursor = NULL;
}
freeListIterator(li);
return cursor ? 1 : 0;
}
- (IBAction)addVar:(id)sender
{
char varname[20];
int i=1;
sprintf(varname,"NewVariable%i",i);
while(persvarexists(varname)) {
++i;
sprintf(varname,"NewVariable%i",i);
}
putpersvar(varname,"0");
[theList reloadData];
}
- (IBAction)clearVars:(id)sender
{
while (listLen(persVars) > 0) {
getListElement(persVars,0);
}
[theList reloadData];
}
- (IBAction)delVar:(id)sender
{
if ([theList selectedRow] > -1) {
getListElement(persVars,[theList selectedRow]);
[theList reloadData];
}
}
- (IBAction)showList:(id)sender
{
if (persVars == NULL) {
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSDictionary *temp = [prefs dictionaryForKey:@"persistentVariables"];
NSEnumerator *enumerator = [temp keyEnumerator];
id key;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onClose:) name:NSWindowWillCloseNotification object:theWindow];
while ((key = [enumerator nextObject])) {
putpersvar(strdup([key UTF8String]),strdup([[temp objectForKey:key] UTF8String]));
}
}
[theWindow makeKeyAndOrderFront:self];
}
- (IBAction)onClose:(id)sender
{
struct pers_var *cursor = NULL;
NSMutableDictionary *temp = [NSMutableDictionary dictionaryWithCapacity:listLen(persVars)];
ListIterator li = NULL;
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowWillCloseNotification object:theWindow];
li = getListIterator(persVars);
while ((cursor = (struct pers_var *)nextListElement(li)) != NULL) {
[temp setObject:[NSString stringWithUTF8String:cursor->exp]
forKey:[NSString stringWithUTF8String:cursor->name]];
}
[prefs setObject:temp forKey:@"persistentVariables"];
freeListIterator(li);
}
@end
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