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#include <stdlib.h>
#include <string.h>
#include "eve.h"
#include "eve_kbd.h"
#include "eve_font.h"
#include "screen/window.h"
#include "screen/page.h"
#include "widget.h"
#define SELECTW_NOSELECT 0xffffffff
#define DIVC(x,y) ((x) / (y) + ((x) % (y) != 0))
static int selectw_verify(utf8_t *option, uint16_t option_size) {
size_t o_len;
uint16_t o_curr;
int rv;
o_curr = 0;
while (o_curr < option_size) {
rv = utf8_verify(option + o_curr, option_size - o_curr, &o_len);
if (rv) return EVE_ERR;
if (o_len == 0) return EVE_OK;
o_curr += o_len + 1;
}
return EVE_OK;
}
static int selectw_count(EVESelectWidget *widget) {
int o_len;
int o_curr;
int i;
o_curr = 0;
i = 0;
do {
o_len = strnlen(widget->option + o_curr, widget->option_size - o_curr);
if (o_len == widget->option_size - o_curr) return i;
if (o_len) {
o_curr += o_len + 1;
i++;
}
} while (o_len);
return i;
}
static void selectw_update_sz(EVESelectWidget *widget, int uievt) {
EVEWidget *_widget = &widget->w;
EVEPage *page = _widget->page;
_widget->g.h = widget->option_count * widget->font->h;
if (uievt) eve_view_uievt_push(&page->v, EVE_UIEVT_WIDGET_UPDATE_G, _widget);
}
void eve_selectw_init(EVESelectWidget *widget, EVERect *g, EVEPage *page, EVEFont *font, utf8_t *option, uint16_t option_size, uint8_t multi) {
EVEWidget *_widget = &widget->w;
int rv;
memset(widget, 0, sizeof(EVESelectWidget));
eve_widget_init(_widget, EVE_WIDGET_TYPE_SELECT, g, page, eve_selectw_draw, eve_selectw_touch, NULL);
widget->font = font;
rv = selectw_verify(option, option_size);
if (rv == EVE_OK) {
widget->option = option;
widget->option_size = option_size;
widget->option_count = selectw_count(widget);
selectw_update_sz(widget, 0);
}
widget->multi = multi;
widget->select = widget->multi ? 0 : SELECTW_NOSELECT;
}
int eve_selectw_create(EVEWidget *_widget, EVEWidgetSpec *spec, EVEPage *page) {
EVESelectWidget *widget = (EVESelectWidget *)_widget;
EVESelectSpec *tspec = &spec->tspec.select;
EVEFont *font = tspec->font ? tspec->font : eve_window_font(page->v.window);
utf8_t *option;
option = eve_malloc(tspec->option_size);
if (option == NULL) {
return EVE_ERR_NOMEM;
}
memset(option, 0, tspec->option_size);
eve_selectw_init(widget, &spec->g, page, font, option, tspec->option_size, tspec->multi);
return EVE_OK;
}
void eve_selectw_destroy(EVEWidget *_widget) {
EVESelectWidget *widget = (EVESelectWidget *)_widget;
eve_free(widget->option);
}
uint8_t eve_selectw_draw(EVEWidget *_widget, uint8_t tag0) {
EVESelectWidget *widget = (EVESelectWidget *)_widget;
EVEPage *page = _widget->page;
int o_len;
int o_curr;
int i, s;
int16_t x1, x2, y1, y2;
uint16_t new_h;
int line0, lineN;
line0 = -((int)eve_page_win_y(page, _widget->g.y)) / widget->font->h;
lineN = DIVC((-((int)eve_page_win_y(page, _widget->g.y)) + page->v.window->g.h), widget->font->h);
if (line0 < 0) line0 = 0;
if (lineN < 0) lineN = 0;
if (line0 > widget->option_count) line0 = widget->option_count;
if (lineN > widget->option_count) lineN = widget->option_count;
_widget->tag0 = tag0;
_widget->tagN = tag0;
widget->line0 = line0;
o_curr = 0;
i = 0;
do {
o_len = strnlen(widget->option + o_curr, widget->option_size - o_curr);
if (!o_len || (o_len == widget->option_size - o_curr)) break;
if ((i >= line0) && (i < lineN)) {
if (_widget->tagN != EVE_NOTAG) {
eve_cmd_dl(TAG(_widget->tagN));
_widget->tagN++;
}
s = widget->multi ? widget->select & (0x1 << i) : widget->select == i;
x1 = _widget->g.x;
x2 = x1 + _widget->g.w;
y1 = _widget->g.y + i * widget->font->h;
y2 = y1 + widget->font->h;
eve_cmd_dl(BEGIN(EVE_RECTS));
if (!s) eve_cmd_dl(COLOR_MASK(0 ,0 ,0 ,0));
eve_cmd_dl(VERTEX2F(x1, y1));
eve_cmd_dl(VERTEX2F(x2, y2));
if (!s) {
eve_cmd_dl(COLOR_MASK(1 ,1 ,1 ,1));
eve_cmd_dl(BEGIN(EVE_LINES));
eve_cmd_dl(VERTEX2F(x1, y2));
eve_cmd_dl(VERTEX2F(x2, y2));
}
eve_cmd_dl(END());
if (s) eve_cmd_dl(COLOR_RGBC(page->v.color_bg));
eve_cmd(CMD_TEXT, "hhhhs", x1, y1, widget->font->id, 0, widget->option + o_curr);
if (s) eve_cmd_dl(COLOR_RGBC(page->v.color_fg));
}
o_curr += o_len + 1;
i++;
} while (o_len);
return _widget->tagN;
}
int eve_selectw_touch(EVEWidget *_widget, EVETouch *touch, uint16_t evt) {
EVESelectWidget *widget = (EVESelectWidget *)_widget;
if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
int i = touch->tag0 - _widget->tag0 + widget->line0;
if (widget->multi) {
uint32_t f = (0x1 << i);
if (widget->select & f) {
widget->select &= ~f;
} else {
widget->select |= f;
}
} else {
if (widget->select == i) {
widget->select = SELECTW_NOSELECT;
} else {
widget->select = i;
}
}
return 1;
}
return 0;
}
utf8_t *eve_selectw_option(EVESelectWidget *widget, int idx) {
int o_len;
int o_curr;
int i;
o_curr = 0;
i = 0;
do {
o_len = strnlen(widget->option + o_curr, widget->option_size - o_curr);
if (o_len == widget->option_size - o_curr) return NULL;
if (o_len && (i == idx)) return widget->option + o_curr;
o_curr += o_len + 1;
i++;
} while (o_len);
return NULL;
}
utf8_t *eve_selectw_option_selected(EVESelectWidget *widget) {
if (widget->select != SELECTW_NOSELECT) return eve_selectw_option(widget, widget->select);
return NULL;
}
int eve_selectw_add_option(EVESelectWidget *widget, utf8_t *option) {
int o_len;
int o_curr;
int rv, i;
rv = utf8_verify(option, strlen(option) + 1, NULL);
if (rv) return EVE_ERR;
o_curr = 0;
i = 0;
do {
o_len = strnlen(widget->option + o_curr, widget->option_size - o_curr);
if (o_len == widget->option_size - o_curr) return EVE_ERR_FULL;
if (o_len) {
o_curr += o_len + 1;
i++;
}
} while (o_len);
if (o_curr + strlen(option) + 1 > widget->option_size) return EVE_ERR_FULL;
strcpy(widget->option + o_curr, option);
widget->option_count = i + 1;
selectw_update_sz(widget, 1);
return EVE_OK;
}
int eve_selectw_set_option(EVESelectWidget *widget, utf8_t *option, uint16_t option_size) {
int rv, i;
rv = selectw_verify(option, option_size);
if (rv) return rv;
if (option_size > widget->option_size) return EVE_ERR_FULL;
memcpy(widget->option, option, option_size);
memset(widget->option + option_size, 0, widget->option_size - option_size);
widget->option_count = selectw_count(widget);
selectw_update_sz(widget, 1);
return EVE_OK;
}
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