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#include <stdlib.h>
#include <string.h>
#include "eve.h"
#include "eve_kbd.h"
#include "unicode.h"
#include "screen.h"
#include "window.h"
#include "page.h"
#include "widget/font.h"
#include "widget/label.h"
#include "widget/widget.h"
#define CH_EOF 0x1a
void eve_page_init(EVEPage *page, EVEWindow *window, EVEPageStack *stack, eve_view_touch_t touch, eve_view_draw_t draw, eve_page_evt_handler_t handle_evt, eve_page_g_updater_t update_g, eve_page_destructor_t destructor) {
memset(page, 0, sizeof(EVEPage));
page->v.touch = touch;
page->v.draw = draw;
page->v.window = window;
page->handle_evt = handle_evt;
page->update_g = update_g;
page->destructor = destructor;
page->stack = stack;
page->widget_f = NULL;
window->view = (EVEView *)page;
}
void eve_page_stack_init(EVEPageStack *stack) {
memset(stack, 0, sizeof(EVEPageStack));
}
void eve_page_create(EVEWindow *window, EVEPageStack *stack, eve_page_constructor_t constructor) {
if (stack->level < EVE_PAGE_SIZE_STACK - 1) {
stack->constructor[stack->level] = constructor;
stack->level++;
constructor(window, stack);
}
}
void eve_page_open(EVEPage *parent, eve_page_constructor_t constructor) {
EVEWindow *window = parent->v.window;
EVEPageStack *stack = parent->stack;
parent->destructor(parent);
eve_page_create(window, stack, constructor);
}
void eve_page_close(EVEPage *page) {
EVEWindow *window = page->v.window;
EVEPageStack *stack = page->stack;
if (stack->level > 1) {
eve_page_constructor_t constructor;
stack->level--;
constructor = stack->constructor[stack->level - 1];
page->destructor(page);
constructor(window, stack);
}
}
int16_t eve_page_x(EVEPage *page, int16_t x) {
return x + page->win_x - page->v.window->g.x;
}
int16_t eve_page_y(EVEPage *page, int16_t y) {
return y + page->win_y - page->v.window->g.y;
}
int16_t eve_page_scr_x(EVEPage *page, int16_t x) {
return x - page->win_x + page->v.window->g.x;
}
int16_t eve_page_scr_y(EVEPage *page, int16_t y) {
return y - page->win_y + page->v.window->g.y;
}
void eve_page_set_focus(EVEPage *page, EVEWidget *widget, EVERect *f) {
if (page->widget_f != widget) {
EVEKbd *kbd = eve_screen_get_kbd(page->v.window->screen);
if (kbd) {
EVEWidget *widget_f = page->widget_f;
if (widget_f && widget_f->putc) {
eve_screen_hide_kbd(page->v.window->screen);
widget_f->putc(page, CH_EOF);
}
if (widget && widget->putc) {
eve_kbd_set_handler(kbd, widget->putc, page);
eve_screen_show_kbd(page->v.window->screen);
} else {
eve_kbd_set_handler(kbd, NULL, NULL);
}
}
page->widget_f = widget;
}
if (f) {
EVERect g;
eve_window_visible_g(page->v.window, &g);
g.x -= page->v.window->g.x;
g.y -= page->v.window->g.y;
if (f->x < page->win_x + g.x) {
page->win_x = f->x - g.x;
}
if (f->y < page->win_y + g.y) {
page->win_y = f->y - g.y;
}
if ((f->x + f->w) > (page->win_x + g.x + g.w)) {
page->win_x = (f->x + f->w) - (g.x + g.w);
}
if ((f->y + f->h) > (page->win_y + g.y + g.h)) {
page->win_y = (f->y + f->h) - (g.y + g.h);
}
}
}
EVEWidget *eve_page_get_focus(EVEPage *page) {
return page->widget_f;
}
int eve_page_rect_visible(EVEPage *page, EVERect *g) {
uint16_t w = page->v.window->g.w;
uint16_t h = page->v.window->g.h;
if (((g->x + g->w) >= page->win_x) && ((g->y + g->h) >= page->win_y) && (g->x <= (page->win_x + w)) && (g->y <= (page->win_y + h))) return 1;
return 0;
}
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