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#include <stdlib.h>
#include <string.h>
#include "eve.h"
#include "eve_kbd.h"
#include "eve_font.h"
#include "window.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 l_h = 0;
for (i=0; i<form->widget_size; i++) {
if (widget->label) {
h += l_h;
w = widget->label->g.w;
l_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 += l_h;
w = 0;
l_h = 0;
}
widget->g.x = w;
widget->g.y = h;
w += widget->g.w;
l_h = MAX(l_h, widget->g.h);
widget = eve_widget_next(widget);
}
form->w = form->p.v.window->g.w;
form->h = h + l_h;
}
static int form_handle_evt(EVEForm *form, EVEWidget *widget, EVETouch *touch, uint16_t evt, uint8_t tag0) {
int ret = 0;
EVEPage *page = &form->p;
if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(touch->eevt & (EVE_TOUCH_EETYPE_TRACK_XY | EVE_TOUCH_EETYPE_ABORT))) {
if (page->widget_f) eve_page_set_focus(page, NULL, NULL);
ret = 1;
}
/* Scroll start */
if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && !(touch->eevt & EVE_TOUCH_EETYPE_ABORT)) {
form->evt_lock = 1;
}
/* Scroll stop */
if (((evt & EVE_TOUCH_ETYPE_TRACK_STOP) && !(evt & EVE_TOUCH_ETYPE_TRACK_ABORT)) ||
((evt & EVE_TOUCH_ETYPE_POINT_UP) && (touch->eevt & EVE_TOUCH_EETYPE_ABORT) && !(touch->eevt & EVE_TOUCH_EETYPE_TRACK_XY))) {
int wmax_x, wmax_y;
int lho_x, lho_y;
EVERect vg;
eve_window_visible_g(page->v.window, &vg);
wmax_x = form->w > vg.w ? form->w - vg.w : 0;
wmax_y = form->h > vg.h ? form->h - vg.h : 0;
lho_x = page->win_x < 0 ? 0 : wmax_x;
lho_y = page->win_y < 0 ? 0 : wmax_y;
if ((page->win_x < 0) || (page->win_x > wmax_x) ||
(page->win_y < 0) || (page->win_y > wmax_y)) {
EVEPhyLHO *lho = &form->lho;
eve_phy_lho_init(lho, lho_x, lho_y, 1000, 0.5, 0);
eve_phy_lho_start(lho, page->win_x, page->win_y);
form->lho_t0 = eve_time_get_tick();
eve_touch_timer_start(tag0, 20);
} else {
form->evt_lock = 0;
if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_RIGHT) {
eve_page_close((EVEPage *)form);
return 1;
}
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_LEFT) {
if (form->action) form->action(form);
return 1;
}
}
}
}
if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
form->win_y0 = page->win_y;
}
}
if (evt & EVE_TOUCH_ETYPE_TRACK) {
if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
page->win_y = form->win_y0 + touch->y0 - touch->y;
}
ret = 1;
}
if (evt & EVE_TOUCH_ETYPE_TIMER) {
EVEPhyLHO *lho = &form->lho;
int more = eve_phy_lho_tick(lho, eve_time_get_tick() - form->lho_t0, NULL, &page->win_y);
if (!more) {
form->evt_lock = 0;
eve_touch_timer_stop();
}
ret = 1;
}
return ret;
}
void 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_draw, eve_form_touch, NULL, (eve_page_destructor_t)destructor);
eve_form_update(form, widget, widget_size, action);
}
void eve_form_update(EVEForm *form, EVEWidget *widget, uint16_t widget_size, eve_form_action_t action) {
if (widget) {
form->widget = widget;
form->widget_size = widget_size;
}
if (action) form->action = action;
form_update_g(form, NULL);
}
uint8_t eve_form_draw(EVEView *view, uint8_t tag0) {
EVEForm *form = (EVEForm *)view;
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;
tagN = eve_view_clear(view, tagN);
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, 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 (view->tag != EVE_TAG_NOTAG) eve_touch_set_opt(view->tag, eve_touch_get_opt(view->tag) | tag_opt);
return tagN;
}
int eve_form_touch(EVEView *view, EVETouch *touch, uint16_t evt, uint8_t tag0) {
EVEForm *form = (EVEForm *)view;
EVEWidget *widget = form->widget;
int8_t touch_idx = eve_touch_get_idx(touch);
uint16_t _evt;
int i, ret;
if (touch_idx > 0) return 0;
_evt = eve_touch_evt(touch, evt, tag0, form->p.v.tag, 1);
if (_evt) {
ret = form_handle_evt(form, NULL, touch, _evt, tag0);
if (ret) return 1;
}
for (i=0; i<form->widget_size; i++) {
_evt = eve_touch_evt(touch, evt, tag0, widget->tag0, widget->tagN - widget->tag0);
if (_evt) {
if (!form->evt_lock) {
ret = widget->touch(widget, touch, _evt);
if (ret) return 1;
}
ret = form_handle_evt(form, widget, touch, _evt, tag0);
if (ret) return 1;
}
widget = eve_widget_next(widget);
}
return 0;
}
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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