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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2021-2022 Aidan MacDonald
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "x1000bootloader.h"
#include "system.h"
#include "kernel.h"
#include "lcd.h"
#include "backlight.h"
#include "backlight-target.h"
#include "font.h"
#include "button.h"
#include "version.h"
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
static bool lcd_inited = false;
extern bool is_usb_connected;
void clearscreen(void)
{
init_lcd();
lcd_clear_display();
putversion();
}
void putversion(void)
{
int x = (LCD_WIDTH - SYSFONT_WIDTH*strlen(rbversion)) / 2;
int y = LCD_HEIGHT - SYSFONT_HEIGHT;
lcd_putsxy(x, y, rbversion);
}
void putcenter_y(int y, const char* msg)
{
int x = (LCD_WIDTH - SYSFONT_WIDTH*strlen(msg)) / 2;
lcd_putsxy(x, y, msg);
}
static void get_splash_size(const char* str, int* width, int* height)
{
*width = 0;
*height = 0;
while(str) {
const char* np = strchr(str, '\n');
int len;
if(np) {
len = np - str;
np++;
} else {
len = strlen(str);
}
*width = MAX(len, *width);
*height += 1;
str = np;
}
}
void splashf(long delay, const char* msg, ...)
{
static char buf[512];
va_list ap;
va_start(ap, msg);
int len = vsnprintf(buf, sizeof(buf), msg, ap);
va_end(ap);
if(len < 0)
return;
int xpos, ypos;
int width, height;
get_splash_size(buf, &width, &height);
width *= SYSFONT_WIDTH;
height *= SYSFONT_HEIGHT;
xpos = (LCD_WIDTH - width) / 2;
ypos = (LCD_HEIGHT - height) / 2;
const int padding = 10;
clearscreen();
lcd_drawrect(xpos-padding, ypos-padding,
width+2*padding, height+2*padding);
char* str = buf;
do {
char* np = strchr(str, '\n');
if(np) {
*np = '\0';
np++;
}
lcd_putsxyf(xpos, ypos, "%s", str);
ypos += SYSFONT_HEIGHT;
str = np;
} while(str);
lcd_update();
sleep(delay);
}
int get_button(int timeout)
{
int btn = button_get_w_tmo(timeout);
switch(btn) {
case SYS_USB_CONNECTED:
case SYS_USB_DISCONNECTED:
is_usb_connected = (btn == SYS_USB_CONNECTED);
break;
#ifdef HAVE_SCREENDUMP
case BL_SCREENSHOT:
screenshot();
break;
#endif
}
return btn;
}
void init_lcd(void)
{
if(lcd_inited)
return;
lcd_init();
font_init();
lcd_setfont(FONT_SYSFIXED);
/* Clear screen before turning backlight on, otherwise we might
* display random garbage on the screen */
lcd_clear_display();
lcd_update();
backlight_init();
lcd_inited = true;
}
void gui_shutdown(void)
{
if(!lcd_inited)
return;
backlight_hw_off();
}
void gui_list_init(struct bl_list* list, struct viewport* vp)
{
list->vp = vp;
list->num_items = 0;
list->selected_item = 0;
list->top_item = 0;
list->item_height = SYSFONT_HEIGHT;
list->draw_item = NULL;
}
void gui_list_draw(struct bl_list* list)
{
struct bl_listitem item = {
.list = list,
.x = 0, .y = 0,
.width = list->vp->width,
.height = list->item_height,
};
struct viewport* old_vp = lcd_set_viewport(list->vp);
lcd_clear_viewport();
int items_on_screen = list->vp->height / list->item_height;
for(int i = 0; i < items_on_screen; ++i) {
item.index = list->top_item + i;
if(item.index >= list->num_items)
break;
list->draw_item(&item);
item.y += item.height;
}
lcd_set_viewport(old_vp);
}
void gui_list_select(struct bl_list* list, int item_index)
{
/* clamp the selection */
list->selected_item = item_index;
if(list->selected_item < 0)
list->selected_item = 0;
else if(list->selected_item >= list->num_items)
list->selected_item = list->num_items - 1;
/* handle scrolling the list view */
int items_on_screen = list->vp->height / list->item_height;
int bottom_item = list->top_item + items_on_screen;
if(list->selected_item < list->top_item) {
list->top_item = list->selected_item;
} else if(list->selected_item >= bottom_item) {
list->top_item = list->selected_item - items_on_screen + 1;
if(list->top_item < 0)
list->top_item = 0;
}
}
void gui_list_scroll(struct bl_list* list, int delta)
{
gui_list_select(list, list->selected_item + delta);
}
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