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#[macro_use]
extern crate lazy_static;
mod externs;
use std::ffi::CString;
pub type Coordinate = u16;
pub struct Point {
x: Coordinate,
y: Coordinate,
}
pub struct Size {
width: i32,
height: i32,
}
pub struct Color(u8, u8, u8, u8);
pub fn set_background_color(color: Color) {
unsafe {
let ptr: *const Color = &color;
let value = *(ptr as *const u32);
externs::CNFGBGColor = value;
}
}
pub fn set_color(color: Color) {
unsafe {
let ptr: *const Color = &color;
let value = *(ptr as *const u32);
externs::CNFGColor(value);
}
}
pub trait App {
fn handle_key(&self, keycode: u32, went_down: bool);
fn handle_button(&self, position: Point, button: u32, went_down: bool);
fn handle_motion(&self, position: Point, mask: u32);
fn handle_destroy(&self);
}
pub fn setup(window_title: &str, dimensions: Size, app: Box<dyn App + Sync>) -> Result<(), i32> {
let title_c = CString::new(window_title).expect("Can't convert title to a C string");
externs::RUNNING_APP.set(app).unwrap();
unsafe {
match externs::CNFGSetup(title_c.as_ptr(), dimensions.width as i32, dimensions.height as i32) {
0 => Ok(()),
code => Err(code)
}
}
}
pub mod window {
use crate::{Size, Color, externs};
use std::ffi::CString;
pub fn set_icon(data: Vec<Color>, dimensions: Size) {
unsafe {
externs::CNFGSetWindowIconData(dimensions.width as i32, dimensions.height as i32, data.as_ptr() as *const u32)
}
}
pub fn change_title(title: &str) {
let title_c = CString::new(title).expect("Can't convert title to a C string");
unsafe {
externs::CNFGChangeWindowTitle(title_c.as_ptr());
}
}
}
pub mod primitives {
use crate::{Point, externs};
pub fn tack_pixel(position: Point) {
unsafe {
externs::CNFGTackPixel(
position.x as i16,
position.y as i16
);
}
}
pub fn tack_segment(start: Point, end: Point) {
unsafe {
externs::CNFGTackSegment(
start.x as i16,
start.y as i16,
end.x as i16,
end.y as i16
);
}
}
pub fn tack_rectangle(from: Point, to: Point) {
unsafe {
externs::CNFGTackRectangle(
from.x as i16,
from.y as i16,
to.x as i16,
to.y as i16
);
}
}
pub fn tack_poly(points: Vec<Point>) {
unsafe {
externs::CNFGTackPoly(points.as_ptr() as *const externs::RDPoint, points.len() as i32);
}
}
}
pub mod frame {
use crate::externs;
pub fn clear() {
unsafe {
externs::CNFGClearFrame();
}
}
pub fn swap_buffers() {
unsafe {
externs::CNFGSwapBuffers();
}
}
pub fn handle_input() {
unsafe {
externs::CNFGHandleInput();
}
}
}
pub mod text {
use crate::{Point, Size, externs};
use std::ffi::CString;
pub fn set_pen_position(position: Point) {
unsafe {
externs::CNFGPenX = position.x.into();
externs::CNFGPenY = position.y.into();
}
}
pub fn draw(text: &str, scale: u16) {
let text_c = CString::new(text).expect("Can't convert text to a C string");
unsafe {
externs::CNFGDrawText(text_c.as_ptr(), scale as i16);
}
}
pub fn get_extents(text: &str, scale: u16) -> Size {
let mut width: i32 = 0;
let mut height: i32 = 0;
let text_c = CString::new(text).expect("Can't convert text to a C string");
unsafe {
externs::CNFGGetTextExtents(text_c.as_ptr(), &mut width, &mut height, scale.into());
}
Size { width: width.into(), height: height.into() }
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn run_example() {
set_background_color(Color(0xff, 0xff, 0xff, 0xff));
setup("Rawstdraw example", Size { width: 800, height: 600}, Box::new(ExampleApp())).expect("Failed to setup rawdraw!");
loop {
frame::handle_input();
frame::clear();
set_color(Color(0xff, 0x33, 0x33, 0x33));
primitives::tack_rectangle(Point { x: 10, y: 10 }, Point { x: 600, y: 300 });
frame::swap_buffers();
}
}
struct ExampleApp();
impl App for ExampleApp {
fn handle_key(&self, keycode: u32, _went_down: bool) {
if keycode == 65307 {
std::process::exit(0);
}
}
fn handle_button(&self, _position: Point, _button: u32, _went_down: bool) {}
fn handle_motion(&self, _position: Point, _mask: u32) {}
fn handle_destroy(&self) {}
}
}