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#include <stdlib.h>
#include <string.h>
#include "unicode.h"
#include "eve.h"
#include "eve_kbd.h"
#include "eve_font.h"
#include "screen.h"
#include "window.h"
#include "view.h"
#include "page.h"
#include "form.h"
#include "widget/label.h"
#include "widget/widget.h"
#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
#define MAX(X, Y) (((X) > (Y)) ? (X) : (Y))
static void form_update_g(EVEForm *form, EVEWidget *_widget) {
EVEWidget *widget = form->widget;
int i;
uint16_t w = 0;
uint16_t h = 0;
uint16_t _h = 0;
for (i=0; i<form->widget_size; i++) {
if (widget->label) {
h += _h;
w = widget->label->g.w;
_h = widget->label->g.h;
widget->label->g.x = 0;
widget->label->g.y = h;
}
if (w + widget->g.w > form->p.v.window->g.w) {
h += _h;
w = 0;
_h = 0;
}
widget->g.x = w;
widget->g.y = h;
w += widget->g.w;
_h = MAX(_h, widget->g.h);
widget = eve_widget_next(widget);
}
}
static int form_handle_evt(EVEForm *form, EVEWidget *widget, EVETouch *touch, uint16_t evt) {
if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
form->win_x0 = form->p.win_x;
form->win_y0 = form->p.win_y;
form->evt_lock = 1;
}
if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
form->evt_lock = 0;
}
if ((evt & EVE_TOUCH_ETYPE_TRACK) && (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y)) {
form->p.win_y = form->win_y0 + touch->y0 - touch->y;
return 1;
}
if (evt & EVE_TOUCH_ETYPE_POINT_UP) {
if ((touch->eevt & EVE_TOUCH_EETYPE_TRACK_XY) == 0) {
if (form->p.widget_f) eve_page_set_focus(&form->p, NULL, NULL);
return 1;
}
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_RIGHT) {
eve_page_close((EVEPage *)form);
return 1;
}
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_LEFT) {
form->action(form);
return 1;
}
}
return 0;
}
int eve_form_init(EVEForm *form, EVEWindow *window, EVEViewStack *stack, EVEWidget *widget, uint16_t widget_size, eve_form_action_t action, eve_form_destructor_t destructor) {
memset(form, 0, sizeof(EVEForm));
eve_page_init(&form->p, window, stack, eve_form_touch, eve_form_draw, (eve_page_destructor_t)destructor);
form->widget = widget;
form->widget_size = widget_size;
form->action = action;
form_update_g(form, NULL);
}
int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx) {
EVEForm *form = (EVEForm *)v;
EVEWidget *widget = form->widget;
EVETouch *t;
uint16_t evt;
int i, ret = 0;
if (touch_idx > 0) return 0;
t = eve_touch_evt(tag0, touch_idx, form->p.v.window->tag, 1, &evt);
if (t && evt) {
ret = form_handle_evt(form, NULL, t, evt);
if (ret) return 1;
}
for (i=0; i<form->widget_size; i++) {
if (eve_page_rect_visible(&form->p, &widget->g)) {
t = eve_touch_evt(tag0, touch_idx, widget->tag0, widget->tagN - widget->tag0, &evt);
if (t && evt) {
if (!form->evt_lock) {
ret = widget->touch(widget, &form->p, t, evt);
if (ret) return 1;
}
ret = form_handle_evt(form, widget, t, evt);
if (ret) return 1;
}
}
widget = eve_widget_next(widget);
}
return 0;
}
uint8_t eve_form_draw(EVEView *v, uint8_t tag0) {
EVEForm *form = (EVEForm *)v;
EVEWidget *widget = form->widget;
int i;
uint8_t tagN = tag0;
uint8_t tag_opt = EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_XY | EVE_TOUCH_OPT_TRACK_EXT_Y;
eve_cmd_dl(SAVE_CONTEXT());
eve_cmd_dl(VERTEX_FORMAT(0));
eve_cmd_dl(VERTEX_TRANSLATE_X(eve_page_scr_x(&form->p, 0) * 16));
eve_cmd_dl(VERTEX_TRANSLATE_Y(eve_page_scr_y(&form->p, 0) * 16));
for (i=0; i<form->widget_size; i++) {
if (widget->label && eve_page_rect_visible(&form->p, &widget->label->g)) {
eve_cmd_dl(TAG_MASK(0));
eve_label_draw(widget->label);
eve_cmd_dl(TAG_MASK(1));
}
if (eve_page_rect_visible(&form->p, &widget->g)) {
uint16_t h = widget->g.h;
tagN = widget->draw(widget, &form->p, tagN);
if (h != widget->g.h) form_update_g(form, widget);
}
widget = eve_widget_next(widget);
}
eve_cmd_dl(RESTORE_CONTEXT());
for (i=tag0; i<tagN; i++) {
eve_touch_set_opt(i, eve_touch_get_opt(i) | tag_opt);
}
if (v->window->tag != EVE_TAG_NOTAG) eve_touch_set_opt(v->window->tag, eve_touch_get_opt(v->window->tag) | tag_opt);
return tagN;
}
EVEWidget *eve_form_widget(EVEForm *form, uint16_t idx) {
EVEWidget *w = form->widget;
int i;
if (idx >= form->widget_size) return NULL;
for (i=0; i<idx; i++) {
w = eve_widget_next(w);
}
return w;
}
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