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-rw-r--r--src/app.rs51
-rw-r--r--src/main.rs4
-rw-r--r--src/message.rs42
3 files changed, 84 insertions, 13 deletions
diff --git a/src/app.rs b/src/app.rs
index f6e2b96..9730cf2 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -2,7 +2,10 @@ use crate::{
2 bitmap::{MapPoint, Pixmap}, 2 bitmap::{MapPoint, Pixmap},
3 command::CommandBox, 3 command::CommandBox,
4 consts::{colors::*, FONT_PATH}, 4 consts::{colors::*, FONT_PATH},
5 dither, rect, 5 dither,
6 lisp::{env, lex::Lexer, parse::Parser, Environment},
7 message::Message,
8 rect,
6 symmetry::Symmetry, 9 symmetry::Symmetry,
7 undo::{ModifyRecord, OpKind, Operation, UndoStack}, 10 undo::{ModifyRecord, OpKind, Operation, UndoStack},
8 utils::{draw_text, is_copy_event, is_paste_event}, 11 utils::{draw_text, is_copy_event, is_paste_event},
@@ -274,6 +277,18 @@ impl<'ctx> AppState<'ctx> {
274 } 277 }
275 278
276 fn eval_command(&mut self) { 279 fn eval_command(&mut self) {
280 let lisp_expr = &self.command_box.text;
281 let mut parser = Parser::new(Lexer::new(lisp_expr, 0));
282 let res = parser.parse_single_expr();
283 match env::eval(&res.unwrap(), self) {
284 Ok(val) => {
285 self.message.text = format!("{}", val);
286 }
287 Err(_) => {
288 self.message.text = format!("Lisp Error!");
289 }
290 }
291
277 if let Some(path) = self.command_box.text.strip_prefix("(save ") { 292 if let Some(path) = self.command_box.text.strip_prefix("(save ") {
278 let image = self.export(); 293 let image = self.export();
279 let encoded = image.encode().unwrap(); 294 let encoded = image.encode().unwrap();
@@ -345,22 +360,31 @@ impl<'ctx> AppState<'ctx> {
345 } 360 }
346 361
347 fn draw_command_box(&mut self) { 362 fn draw_command_box(&mut self) {
348 if self.command_box.is_empty() {
349 self.mode = Mode::Draw;
350 return;
351 }
352 let (winsize_x, winsize_y) = self.canvas.window().size(); 363 let (winsize_x, winsize_y) = self.canvas.window().size();
353 let cmd_height: u32 = 20; 364 let cmd_height: u32 = 20;
354 let cmd_width = winsize_x; 365 let cmd_width = winsize_x;
355 self.canvas.set_draw_color(WHITE); 366 self.canvas.set_draw_color(BLACK);
356 self.canvas 367 self.canvas
357 .fill_rect(rect!(0, winsize_y - cmd_height, cmd_width, cmd_height)) 368 .fill_rect(rect!(0, winsize_y - cmd_height, cmd_width, cmd_height))
358 .unwrap(); 369 .unwrap();
370 if self.command_box.is_empty() {
371 self.mode = Mode::Draw;
372 // show msg
373 draw_text(
374 &mut self.canvas,
375 self.ttf_context,
376 &self.message.text[..],
377 WHITE,
378 (0, winsize_y - cmd_height),
379 );
380 return;
381 }
382 // show repl
359 draw_text( 383 draw_text(
360 &mut self.canvas, 384 &mut self.canvas,
361 self.ttf_context, 385 self.ttf_context,
362 &self.command_box.text[..], 386 &self.command_box.text[..],
363 BLACK, 387 WHITE,
364 (0, winsize_y - cmd_height), 388 (0, winsize_y - cmd_height),
365 ); 389 );
366 390
@@ -438,11 +462,11 @@ impl<'ctx> AppState<'ctx> {
438 .draw_line((line_coord, 0), (line_coord, winsize_y as i32)) 462 .draw_line((line_coord, 0), (line_coord, winsize_y as i32))
439 .unwrap(); 463 .unwrap();
440 } 464 }
441 if self.mode == Mode::Draw { 465 // if self.mode == Mode::Draw {
442 self.draw_statusline(); 466 // self.draw_statusline();
443 } else { 467 // } else {
444 self.draw_command_box(); 468 self.draw_command_box();
445 } 469 // }
446 self.draw_mouse(); 470 self.draw_mouse();
447 } 471 }
448 472
@@ -493,12 +517,14 @@ impl<'ctx> AppState<'ctx> {
493 grid: Grid::new(), 517 grid: Grid::new(),
494 last_point: None, 518 last_point: None,
495 mode: Mode::Draw, 519 mode: Mode::Draw,
520 message: Message::new().text(" "),
496 mouse: (0, 0), 521 mouse: (0, 0),
497 pixmap, 522 pixmap,
498 start: Point::new(60, 60), 523 start: Point::new(60, 60),
499 symmetry: Default::default(), 524 symmetry: Default::default(),
500 ttf_context, 525 ttf_context,
501 undo_stack: UndoStack::new(), 526 undo_stack: UndoStack::new(),
527 lisp_env: env::with_prelude(),
502 zoom: 5, 528 zoom: 5,
503 } 529 }
504 } 530 }
@@ -700,6 +726,7 @@ impl<'ctx> AppState<'ctx> {
700 Keycode::Return => self.eval_command(), 726 Keycode::Return => self.eval_command(),
701 Keycode::Escape => { 727 Keycode::Escape => {
702 self.command_box.clear(); 728 self.command_box.clear();
729 self.message.text = format!(" ");
703 self.mode = Mode::Draw; 730 self.mode = Mode::Draw;
704 } 731 }
705 _ => (), 732 _ => (),
diff --git a/src/main.rs b/src/main.rs
index ebdf793..197b200 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,6 +3,8 @@ mod bitmap;
3mod command; 3mod command;
4mod consts; 4mod consts;
5mod dither; 5mod dither;
6mod lisp;
7mod message;
6mod symmetry; 8mod symmetry;
7mod undo; 9mod undo;
8mod utils; 10mod utils;
@@ -22,7 +24,7 @@ pub fn main() {
22 let ttf_context = sdl2::ttf::init().unwrap(); 24 let ttf_context = sdl2::ttf::init().unwrap();
23 let args: Vec<_> = env::args().collect(); 25 let args: Vec<_> = env::args().collect();
24 if args.len() < 2 { 26 if args.len() < 2 {
25 AppState::init(200, 200, &sdl_context, &ttf_context, None).run(); 27 AppState::init(160, 160, &sdl_context, &ttf_context, None).run();
26 return; 28 return;
27 } else { 29 } else {
28 let path = args.get(1).unwrap(); 30 let path = args.get(1).unwrap();
diff --git a/src/message.rs b/src/message.rs
new file mode 100644
index 0000000..d1032cf
--- /dev/null
+++ b/src/message.rs
@@ -0,0 +1,42 @@
1#[derive(Debug)]
2pub struct Message {
3 pub text: String,
4 pub kind: MessageKind,
5}
6
7impl Message {
8 pub fn new() -> Self {
9 Self {
10 text: String::new(),
11 kind: MessageKind::Info,
12 }
13 }
14 pub fn kind(mut self, kind: MessageKind) -> Self {
15 self.kind = kind;
16 self
17 }
18 pub fn text<S: AsRef<str>>(mut self, text: S) -> Self {
19 self.text = text.as_ref().into();
20 self
21 }
22}
23
24#[derive(Debug, Copy, Clone)]
25pub enum MessageKind {
26 Error,
27 Info,
28 Hint,
29 LispResult,
30}
31
32impl<T> From<T> for Message
33where
34 T: AsRef<str>,
35{
36 fn from(item: T) -> Self {
37 return Message {
38 text: item.as_ref().into(),
39 kind: MessageKind::Info,
40 };
41 }
42}