split out more files

src/command.rs

@@ -0,0 +1,63 @@
+use crate::{BitVec, Header, Packet, PixelGrid, ToPacket};
+
+/// A window
+#[derive(Debug)]
+pub struct Window(pub Origin, pub Size);
+
+/// An origin marks the top left position of the
+/// data sent to the display.
+/// A window
+#[derive(Debug)]
+pub struct Origin(pub u16, pub u16);
+
+/// Size defines the width and height of a window
+/// A window
+#[derive(Debug)]
+pub struct Size(pub u16, pub u16);
+
+type Offset = u16;
+
+type Brightness = u8;
+
+
+#[derive(Debug)]
+pub enum Command {
+    Clear,
+    HardReset,
+    FadeOut,
+    CharBrightness(Window, Vec<Brightness>),
+    Brightness(Brightness),
+    BitmapLinear(Offset, BitVec),
+    BitmapLinearAnd(Offset, BitVec),
+    BitmapLinearOr(Offset, BitVec),
+    BitmapLinearXor(Offset, BitVec),
+    Cp437Data(Window, Vec<u8>),
+    BitmapLinearWin(Window, PixelGrid),
+}
+
+fn offset_and_payload(command: u16, offset: Offset, payload: Vec<u8>) -> Packet {
+    Packet(Header(command, offset, payload.len() as u16, 0, 0), payload)
+}
+
+fn window_and_payload(command: u16, window: Window, payload: Vec<u8>) -> Packet {
+    let Window(Origin(x, y), Size(w, h)) = window;
+    Packet(Header(command, x, y, w, h), payload.into())
+}
+
+impl ToPacket for Command {
+    fn to_packet(self) -> Packet {
+        match self {
+            Command::Clear => Packet(Header(0x0002, 0x0000, 0x0000, 0x0000, 0x0000), vec!()),
+            Command::CharBrightness(window, payload) => window_and_payload(0x0005, window, payload),
+            Command::Brightness(brightness) => Packet(Header(0x0007, 0x00000, 0x0000, 0x0000, 0x0000), vec!(brightness)),
+            Command::HardReset => Packet(Header(0x000b, 0x0000, 0x0000, 0x0000, 0x0000), vec!()),
+            Command::FadeOut => Packet(Header(0x000d, 0x0000, 0x0000, 0x0000, 0x0000), vec!()),
+            Command::BitmapLinear(offset, bits) => offset_and_payload(0x0012, offset, bits.into()),
+            Command::BitmapLinearWin(window, pixels) => window_and_payload(0x0013, window, pixels.into()),
+            Command::BitmapLinearAnd(offset, bits) => offset_and_payload(0x0014, offset, bits.into()),
+            Command::BitmapLinearOr(offset, bits) => offset_and_payload(0x0015, offset, bits.into()),
+            Command::BitmapLinearXor(offset, bits) => offset_and_payload(0x0016, offset, bits.into()),
+            Command::Cp437Data(window, payload) => window_and_payload(0x0003, window, payload),
+        }
+    }
+}