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use hal;
use hal::digital::OutputPin;
use crate::displayrotation::DisplayRotation;
use crate::displaysize::DisplaySize;
use crate::interface::{I2cInterface, SpiInterface};
use crate::mode::displaymode::DisplayMode;
use crate::mode::raw::RawMode;
use crate::properties::DisplayProperties;
#[derive(Clone, Copy)]
pub struct Builder<CS = NoOutputPin> {
display_size: DisplaySize,
rotation: DisplayRotation,
i2c_addr: u8,
spi_cs: CS,
}
impl Default for Builder {
fn default() -> Self {
Self::new()
}
}
impl Builder {
pub fn new() -> Builder<NoOutputPin> {
Builder {
display_size: DisplaySize::Display128x64,
rotation: DisplayRotation::Rotate0,
i2c_addr: 0x3c,
spi_cs: NoOutputPin,
}
}
}
impl<CS> Builder<CS>
where
CS: OutputPin,
{
pub fn with_size(self, display_size: DisplaySize) -> Self {
Self {
display_size,
..self
}
}
pub fn with_i2c_addr(self, i2c_addr: u8) -> Self {
Self { i2c_addr, ..self }
}
pub fn with_rotation(self, rotation: DisplayRotation) -> Self {
Self { rotation, ..self }
}
pub fn with_spi_cs<NEWCS>(self, spi_cs: NEWCS) -> Builder<NEWCS>
where
NEWCS: OutputPin,
{
Builder {
display_size: self.display_size,
i2c_addr: self.i2c_addr,
rotation: self.rotation,
spi_cs,
}
}
pub fn connect_i2c<I2C>(self, i2c: I2C) -> DisplayMode<RawMode<I2cInterface<I2C>>>
where
I2C: hal::blocking::i2c::Write,
{
let properties = DisplayProperties::new(
I2cInterface::new(i2c, self.i2c_addr),
self.display_size,
self.rotation,
);
DisplayMode::<RawMode<I2cInterface<I2C>>>::new(properties)
}
pub fn connect_spi<SPI, DC>(
self,
spi: SPI,
dc: DC,
) -> DisplayMode<RawMode<SpiInterface<SPI, DC, CS>>>
where
SPI: hal::blocking::spi::Transfer<u8> + hal::blocking::spi::Write<u8>,
DC: OutputPin,
{
let properties = DisplayProperties::new(
SpiInterface::new(spi, dc, self.spi_cs),
self.display_size,
self.rotation,
);
DisplayMode::<RawMode<SpiInterface<SPI, DC, CS>>>::new(properties)
}
}
#[derive(Clone, Copy)]
pub struct NoOutputPin;
impl OutputPin for NoOutputPin {
fn set_low(&mut self) {}
fn set_high(&mut self) {}
}