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#include <slang.h>
#include <stdlib.h>
#include <string.h>
#include "newt.h"
#include "newt_pr.h"
enum type { CHECK, RADIO };
struct checkbox {
char * text;
char * seq;
char * result;
newtComponent prevButton, lastButton;
enum type type;
char value;
int active, inactive;
const void * data;
int flags;
int hasFocus;
};
static void cbDraw(newtComponent c);
static void cbDestroy(newtComponent co);
struct eventResult cbEvent(newtComponent co, struct event ev);
static struct componentOps cbOps = {
cbDraw,
cbEvent,
cbDestroy,
newtDefaultPlaceHandler,
newtDefaultMappedHandler,
} ;
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;
if (!setMember)
return NULL;
rb = setMember->data;
}
return setMember;
}
void newtRadioSetCurrent(newtComponent setMember) {
struct checkbox * cb = setMember->data;
struct checkbox * rb;
newtComponent curr;
/* find the one that's turned on */
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];
cbDraw(curr);
}
cb->value = cb->seq[1];
cbDraw(setMember);
if (setMember->callback)
setMember->callback(setMember, setMember->callbackData);
}
char newtCheckboxGetValue(newtComponent co) {
struct checkbox * cb = co->data;
return cb->value;
}
void newtCheckboxSetValue(newtComponent co, char value) {
struct checkbox * cb = co->data;
*cb->result = value;
cbDraw(co);
}
/*
* returns NULL on error.
* FIXME: Check all calls.
*/
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));
if (co == NULL)
return NULL;
cb = malloc(sizeof(struct checkbox));
if (cb == NULL) {
free(co);
return NULL;
}
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->hasFocus = 0;
cb->inactive = COLORSET_CHECKBOX;
cb->active = COLORSET_ACTCHECKBOX;
defValue ? (*cb->result = defValue) : (*cb->result = cb->seq[0]);
co->ops = &cbOps;
co->callback = NULL;
co->destroyCallback = NULL;
co->height = 1;
co->width = wstrlen(text, -1) + 4;
co->top = top;
co->left = left;
co->takesFocus = 1;
co->isMapped = 0;
return co;
}
void newtCheckboxSetFlags(newtComponent co, int flags, enum newtFlagsSense sense) {
struct checkbox * cb = co->data;
int row, col;
cb->flags = newtSetFlags(cb->flags, flags, sense);
// If the flag just sets a property (eg. NEWT_FLAG_RETURNEXIT),
// don't redraw, etc. as the component might be 'hidden' and not to
// be drawn (eg. in a scrolled list)
if (flags == NEWT_FLAG_RETURNEXIT)
return;
if (!(cb->flags & NEWT_FLAG_DISABLED))
co->takesFocus = 1;
else
co->takesFocus = 0;
newtGetrc(&row, &col);
cbDraw(co);
newtGotorc(row, col);
}
static void cbDraw(newtComponent c) {
struct checkbox * cb = c->data;
if (!c->isMapped) return;
if (cb->flags & NEWT_FLAG_DISABLED) {
cb->inactive = NEWT_COLORSET_DISENTRY;
cb->active = NEWT_COLORSET_DISENTRY;
} else {
cb->inactive = COLORSET_CHECKBOX;
cb->active = COLORSET_ACTCHECKBOX;
}
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;
}
write_string_int(cb->text, NULL);
if (cb->hasFocus)
SLsmg_set_color(cb->active);
newtGotorc(c->top, c->left + 1);
SLsmg_write_char(*cb->result);
newtGotorc(c->top, c->left + 4);
}
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;
er.result = ER_IGNORED;
if (ev.when == EV_NORMAL) {
switch (ev.event) {
case EV_FOCUS:
cb->hasFocus = 1;
cbDraw(co);
er.result = ER_SWALLOWED;
break;
case EV_UNFOCUS:
cb->hasFocus = 0;
cbDraw(co);
er.result = ER_SWALLOWED;
break;
case EV_KEYPRESS:
if (ev.u.key == ' ') {
if (cb->type == RADIO) {
newtRadioSetCurrent(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;
}
cbDraw(co);
er.result = ER_SWALLOWED;
if (co->callback)
co->callback(co, co->callbackData);
} else {
er.result = ER_IGNORED;
}
} else if(ev.u.key == NEWT_KEY_ENTER) {
if (cb->flags & NEWT_FLAG_RETURNEXIT)
er.result = ER_EXITFORM;
else
er.result = ER_IGNORED;
} else {
er.result = ER_IGNORED;
}
break;
case EV_MOUSE:
if (ev.u.mouse.type == MOUSE_BUTTON_DOWN) {
if (cb->type == RADIO) {
newtRadioSetCurrent(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;
}
cbDraw(co);
er.result = ER_SWALLOWED;
if (co->callback)
co->callback(co, co->callbackData);
}
}
}
}
return er;
}
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