@ -1,10 +1,22 @@
# include "faceCalendar.h"
# include "display.h"
# include "datetime.h"
# include "SPIFFS.h"
# include "pngle.h"
# include <Fonts/FreeMono12pt7b.h> // weekday - month year
# include <Fonts/FreeSansBold24pt7b.h> // current day
void display_calender ( ) ;
void display_lines ( ) ;
void display_ picture ( ) ;
void display_time ( ) ;
void on_draw2 ( pngle_t * pngle , uint32_t x , uint32_t y , uint32_t w , uint32_t h , uint8_t rgba [ 4 ] ) ;
using std : : uint8_t ;
static constexpr int MAX_WIDTH = 640 - 250 ;
static constexpr int MAX_HEIGHT = 384 ;
static int16_t curRowDelta [ MAX_WIDTH + 1 ] ;
static int16_t nextRowDelta [ MAX_WIDTH + 1 ] ;
void setupFaceCalendar ( )
{
@ -12,118 +24,186 @@ void setupFaceCalendar()
setupDateTime ( ) ;
display . setRotation ( 0 ) ;
display . setFullWindow ( ) ;
display . firstPage ( ) ;
display . fillScreen ( GxEPD_WHITE ) ;
// draw...
display_lines ( ) ;
//display_time();
display_picture ( ) ;
display_calender ( ) ;
display_time ( ) ;
Serial . println ( " displayFlush " ) ;
display . nextPage ( ) ;
// https://raw.githubusercontent.com/rgujju/paperdink/master/Images/full.jpg
// https://github.com/rgujju/paperdink/blob/master/Software/paperd.ink/GUI.cpp
// https://images.unsplash.com/photo-1580886349729-1bd109928600?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjExMDM0OH0&w=640&h=200&fm=png&fit=crop
// https://images.unsplash.com/photo-1580886349729-1bd109928600?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjExMDM0OH0&w=390&h=384&fm=png&fit=crop&colorquant=2
// final filter: &w=390&h=384&fm=png&fit=crop&duotone=000000,FFFFFF
// display_weather
}
void loopFaceCalendar ( )
{
}
void display_lines ( )
void display_calender ( )
{
// init
int16_t sideWidth = 250 ;
int16_t tbx , tby ;
uint16_t tbw , tbh , x ;
char label [ 64 ] ;
display . setTextColor ( GxEPD_WHITE ) ;
display . setTextSize ( 1 ) ;
display . setRotation ( 0 ) ;
// left side
display . fillRect ( 0 , 0 , sideWidth , display . height ( ) , GxEPD_BLACK ) ;
// weekday
strftime ( label , 64 , " %A " , & now ) ;
display . setFont ( & FreeMono12pt7b ) ;
display . getTextBounds ( label , 0 , 0 , & tbx , & tby , & tbw , & tbh ) ;
x = ( ( sideWidth - tbw ) / 2 ) - tbx ;
display . setCursor ( x , 30 ) ;
display . println ( label ) ;
// today
display . setFont ( & FreeSansBold24pt7b ) ;
display . setTextSize ( 2 ) ;
display . getTextBounds ( " 29 " , 0 , 0 , & tbx , & tby , & tbw , & tbh ) ;
x = ( ( sideWidth - tbw ) / 2 ) - tbx ;
display . setCursor ( x , 120 ) ;
display . println ( now . tm_mday ) ;
// month yearh
strftime ( label , 64 , " %B %Y " , & now ) ;
display . setTextSize ( 1 ) ;
display . setFont ( & FreeMono12pt7b ) ;
display . getTextBounds ( label , 0 , 0 , & tbx , & tby , & tbw , & tbh ) ;
x = ( ( sideWidth - tbw ) / 2 ) - tbx ;
display . setCursor ( x , 150 ) ;
display . println ( label ) ;
// weekday headline
display . setFont ( & FreeMonoBold9pt7b ) ;
display . setCursor ( 20 , 192 ) ;
display . println ( " Mo Tu We Th Fr Sa Su " ) ;
display . setCursor ( 20 , 220 ) ;
// skip week days from previous month
for ( uint8_t d = 1 ; d < now . day_offset ; d + + )
{
display . print ( " " ) ;
}
for ( uint8_t d = 1 ; d < = now . days_in_month ; d + + )
{
display . printf ( " %2d " , d ) ;
if ( ( d + now . day_offset - 1 ) % 7 = = 0 )
{
// new week
display . println ( " " ) ;
display . setCursor ( 20 , display . getCursorY ( ) ) ;
}
}
// TODO current weather
display . drawLine ( 15 , 320 , sideWidth - 15 , 320 , GxEPD_WHITE ) ;
}
void display_picture ( )
{
// black area bottom
display . fillRect ( 0 , ( display . height ( ) / 3 ) * 2 , display . width ( ) , ( display . height ( ) / 3 ) , GxEPD_BLACK ) ;
SPIFFS . begin ( ) ;
displayOpen ( ) ;
pngle_t * pngle = pngle_new ( ) ;
pngle_set_draw_callback ( pngle , on_draw2 ) ;
// vertical lines
display . fillRect ( ( display . width ( ) / 4 ) , 0 , 5 , ( display . height ( ) / 3 ) * 2 , GxEPD_BLACK ) ;
display . fillRect ( ( display . width ( ) / 4 ) , ( display . height ( ) / 3 ) * 2 , 5 , ( display . height ( ) / 3 ) , GxEPD_WHITE ) ;
//File file = SPIFFS.open("/blackPNG.png", "r");
File file = SPIFFS . open ( " /calendarPhoto.png " , " r " ) ;
if ( ! file )
{
Serial . println ( " file not found " ) ;
}
// TODO check why a small buffer is not working correct
char buff [ 1280 ] = { 0 } ;
while ( int c = file . readBytes ( buff , sizeof ( buff ) ) )
{
pngle_feed ( pngle , buff , c ) ;
}
file . close ( ) ;
Serial . print ( " width: " ) ;
Serial . print ( pngle_get_width ( pngle ) ) ;
Serial . print ( " height: " ) ;
Serial . println ( pngle_get_height ( pngle ) ) ;
Serial . println ( " read png done " ) ;
pngle_destroy ( pngle ) ;
}
/**
* @ todo make it better : )
* Floyd - Steinberg - Algorithmus
*/
void display_calender ( )
void on_draw2( pngle_t * pngle , uint32_t x , uint32_t y , uint32_t w , uint32_t h , uint8_t rgba [ 4 ] )
{
int16_t x1 , y1 ;
uint16_t w , h ;
display . setFont ( & FreeMonoBold9pt7b ) ;
display . setTextSize ( 1 ) ;
display . setTextColor ( GxEPD_BLACK ) ;
int16_t calender_base_y = 40 ;
int16_t calender_base_x = 120 ;
display . setCursor ( calender_base_x , calender_base_y ) ;
display . println ( " Mon Tue Wed Thu Fri Sat Sun " ) ;
display . getTextBounds ( " Mon Tue Wed Thu Fri Sat Sun " , calender_base_x , calender_base_y , & x1 , & y1 , & w , & h ) ;
uint8_t num_offset , print_valid = 0 ;
uint8_t day = 1 ;
for ( uint8_t j = 0 ; j < = 5 ; j + + )
uint8_t r = rgba [ 0 ] ; // 0 - 255
uint8_t g = rgba [ 1 ] ; // 0 - 255
uint8_t b = rgba [ 2 ] ; // 0 - 255
//uint8_t a = rgba[3]; // 0: fully transparent, 255: fully opaque
int16_t gray = round ( r * 0.3 + g * 0.59 + b * 0.11 ) ;
int16_t blackOrWhite ;
// Add errors to color if there are
gray + = curRowDelta [ x ] ;
if ( gray < = 127 )
{
for ( uint8_t i = 1 ; i < = 7 & & day < = 31 ; i + + )
{
// you can hack around with this value to align your text properly based on what font, font size etc you are using
num_offset = 21 ; // 21 is what works for me for the first 2 columns
if ( i > = 3 & & i < = 7 )
{
num_offset = 17 ; // then i need to reduce to 17
}
if ( j = = 0 & & i = = now . day_offset )
{
// start from the offset in the month, ie which day does 1st of the month lie on
print_valid = 1 ;
}
if ( print_valid )
{
display . setCursor ( calender_base_x + ( i * ( w / 7 ) ) - num_offset , calender_base_y + ( ( j + 1 ) * h ) + ( ( j + 1 ) * 7 ) ) ;
if ( day = = now . mday )
{
char str [ 3 ] ;
sprintf ( str , " %d " , day ) ;
int16_t x2 , y2 ;
uint16_t w2 , h2 ;
display . getTextBounds ( str , calender_base_x + ( i * ( w / 7 ) ) - num_offset , calender_base_y + ( ( j + 1 ) * h ) + ( ( j + 1 ) * 7 ) , & x2 , & y2 , & w2 , & h2 ) ;
display . fillRect ( x2 - 4 , y2 - 4 , w2 + 8 , h2 + 8 , GxEPD_BLACK ) ;
display . setTextColor ( GxEPD_WHITE ) ;
}
else
{
display . setTextColor ( GxEPD_BLACK ) ;
}
// once the offset is reached, start incrementing
display . println ( day ) ;
day + = 1 ;
}
}
blackOrWhite = 0 ;
}
else
{
blackOrWhite = 255 ;
}
// display day
display . setTextColor ( GxEPD_WHITE ) ;
display . setFont ( & FreeMonoBold9pt7b ) ; // LARGE_FONT
display . setTextSize ( 1 ) ;
display . setCursor ( 33 , 250 ) ;
display . println ( now . mday ) ;
int16_t oldPixel = gray ;
int16_t newPixel = blackOrWhite ;
// display month
display . setTextColor ( GxEPD_WHITE ) ;
display . setFont ( & FreeMonoBold9pt7b ) ; // MED_FONT
display . setTextSize ( 2 ) ;
display . setCursor ( 30 , 290 ) ;
display . println ( now . month ) ;
int err = oldPixel - newPixel ;
if ( x > 0 )
nextRowDelta [ x - 1 ] + = err * 3 / 16 ;
nextRowDelta [ x ] + = err * 5 / 16 ;
nextRowDelta [ x + 1 ] + = err * 1 / 16 ;
curRowDelta [ x + 1 ] + = err * 7 / 16 ;
if ( x = = 0 & & y > 0 )
{
// new line
memcpy ( curRowDelta , nextRowDelta , sizeof ( curRowDelta ) ) ;
memset ( nextRowDelta , 0 , sizeof ( nextRowDelta ) ) ;
}
displayWritePixel ( x + 250 , y , blackOrWhite ) ;
}
void display_time ( )
{
/*
int16_t x1 , y1 ;
uint16_t w , h ;
//display time
display . setFont ( & FreeMonoBold9pt7b ) ; // LARGE_FONT
display . setFont ( & FreeMonoBold9pt7b ) ; // LARGE_FONT
display . setTextSize ( 1 ) ;
display . setTextColor ( GxEPD_BLACK ) ;
int16_t time_base_y = 60 ;
@ -152,4 +232,5 @@ void display_time()
{
display . println ( now . min ) ;
}
*/
}
Thomas Ballmann
4 years ago