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#include <slang.h>
#include <stdlib.h>
#include <string.h>
#include "newt.h"
#include "newt_pr.h"
enum type { CHECK, RADIO, LISTITEM };
struct checkbox {
char * text;
char * seq;
char * result;
newtComponent prevButton, lastButton;
enum type type;
char value;
int active, inactive;
const void * data;
int flags;
};
static void cbDrawIt(newtComponent c, int active);
static void makeActive(newtComponent co);
static void cbDraw(newtComponent c);
static void cbDestroy(newtComponent co);
struct eventResult cbEvent(newtComponent co, struct event ev);
static const struct componentOps cbOps = {
cbDraw,
cbEvent,
cbDestroy,
NULL,
} ;
newtComponent newtListitem(int left, int top, const char * text, int isDefault,
newtComponent prevItem, const void * data, int flags) {
newtComponent co;
struct checkbox * li;
co = newtRadiobutton(left, top, text, isDefault, prevItem);
li = co->data;
li->type = LISTITEM;
li->flags = flags & (NEWT_FLAG_RETURNEXIT);
li->inactive = COLORSET_LISTBOX;
li->active = COLORSET_ACTLISTBOX;
li->data = data;
return co;
}
void * newtListitemGetData(newtComponent co) {
struct checkbox * rb = co->data;
return (void *)rb->data;
}
void newtListitemSet(newtComponent co, const char * text) {
struct checkbox * li = co->data;
free(li->text);
li->text = strdup(text);
if (strlen(text) + 4 > (unsigned int)co->width)
co->width = strlen(text) + 4;
}
newtComponent newtRadiobutton(int left, int top, const char * text, int isDefault,
newtComponent prevButton) {
newtComponent co;
newtComponent curr;
struct checkbox * rb;
char initialValue;
if (isDefault)
initialValue = '*';
else
initialValue = ' ';
co = newtCheckbox(left, top, text, initialValue, " *", NULL);
rb = co->data;
rb->type = RADIO;
rb->prevButton = prevButton;
for (curr = co; curr; curr = rb->prevButton) {
rb = curr->data;
rb->lastButton = co;
}
return co;
}
newtComponent newtRadioGetCurrent(newtComponent setMember) {
struct checkbox * rb = setMember->data;
setMember = rb->lastButton;
rb = setMember->data;
while (rb && rb->value != '*') {
setMember = rb->prevButton;
rb = setMember->data;
}
return setMember;
}
newtComponent newtCheckbox(int left, int top, const char * text, char defValue,
const char * seq, char * result) {
newtComponent co;
struct checkbox * cb;
if (!seq) seq = " *";
co = malloc(sizeof(*co));
cb = malloc(sizeof(struct checkbox));
co->data = cb;
cb->flags = 0;
if (result)
cb->result = result;
else
cb->result = &cb->value;
cb->text = strdup(text);
cb->seq = strdup(seq);
cb->type = CHECK;
cb->inactive = COLORSET_CHECKBOX;
cb->active = COLORSET_ACTCHECKBOX;
defValue ? (*cb->result = defValue) : (*cb->result = cb->seq[0]);
co->ops = &cbOps;
co->callback = NULL;
co->height = 1;
co->width = strlen(text) + 4;
co->top = top;
co->left = left;
co->takesFocus = 1;
return co;
}
static void cbDraw(newtComponent c) {
cbDrawIt(c, 0);
}
static void cbDrawIt(newtComponent c, int active) {
struct checkbox * cb = c->data;
if (c->top == -1) return;
if (cb->type == LISTITEM && *cb->result != ' ')
SLsmg_set_color(cb->active);
else
SLsmg_set_color(cb->inactive);
newtGotorc(c->top, c->left);
switch (cb->type) {
case RADIO:
SLsmg_write_string("( ) ");
break;
case CHECK:
SLsmg_write_string("[ ] ");
break;
default:
break;
}
SLsmg_write_string(cb->text);
if (active)
SLsmg_set_color(cb->active);
if (cb->type != LISTITEM) {
newtGotorc(c->top, c->left + 1);
SLsmg_write_char(*cb->result);
}
}
static void cbDestroy(newtComponent co) {
struct checkbox * cb = co->data;
free(cb->text);
free(cb->seq);
free(cb);
free(co);
}
struct eventResult cbEvent(newtComponent co, struct event ev) {
struct checkbox * cb = co->data;
struct eventResult er;
const char * cur;
if (ev.when == EV_NORMAL) {
switch (ev.event) {
case EV_FOCUS:
if (cb->type == LISTITEM)
makeActive(co);
else
cbDrawIt(co, 1);
er.result = ER_SWALLOWED;
break;
case EV_UNFOCUS:
cbDrawIt(co, 0);
er.result = ER_SWALLOWED;
break;
case EV_KEYPRESS:
if (ev.u.key == ' ') {
if (cb->type == RADIO) {
makeActive(co);
} else if (cb->type == CHECK) {
cur = strchr(cb->seq, *cb->result);
if (!cur)
*cb->result = *cb->seq;
else {
cur++;
if (! *cur)
*cb->result = *cb->seq;
else
*cb->result = *cur;
}
cbDrawIt(co, 1);
er.result = ER_SWALLOWED;
} else {
er.result = ER_IGNORED;
}
} else if(ev.u.key == NEWT_KEY_ENTER) {
if((cb->type == LISTITEM)
&& (cb->flags | NEWT_FLAG_RETURNEXIT)) {
er.u.focus = co;
er.result = ER_EXITFORM;
} else
er.result = ER_IGNORED;
} else {
er.result = ER_IGNORED;
}
break;
}
} else
er.result = ER_IGNORED;
if (er.result == ER_SWALLOWED && co->callback)
co->callback(co, co->callbackData);
return er;
}
static void makeActive(newtComponent co) {
struct checkbox * cb = co->data;
struct checkbox * rb;
newtComponent curr;
/* find the one that's turned off */
curr = cb->lastButton;
rb = curr->data;
while (curr && rb->value == rb->seq[0]) {
curr = rb->prevButton;
if (curr) rb = curr->data;
}
if (curr) {
rb->value = rb->seq[0];
cbDrawIt(curr, 0);
}
cb->value = cb->seq[1];
cbDrawIt(co, 1);
}
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