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authorAkshay <[email protected]>2021-04-04 11:09:17 +0100
committerAkshay <[email protected]>2021-04-04 14:07:09 +0100
commitc4354e2d8d51cc9fc12dce9ad2d5736e400a8de4 (patch)
treea651a7d2406886869be693baa7afbd7807fdfa0f /src
parent62d9de6a368a50dcb62b2b97a5fb02a3858b0977 (diff)
basic support for adding guides
Diffstat (limited to 'src')
-rw-r--r--src/app.rs8
-rw-r--r--src/bitmap.rs30
-rw-r--r--src/guide.rs22
-rw-r--r--src/lisp/expr.rs14
-rw-r--r--src/lisp/prelude.rs15
5 files changed, 76 insertions, 13 deletions
diff --git a/src/app.rs b/src/app.rs
index 4a4e2cc..243b196 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,22 +1,24 @@
1use crate::{ 1use crate::{
2 bitmap::{positive_angle_with_x, MapPoint, Pixmap}, 2 bitmap::{positive_angle_with_x, Axis, MapPoint, Pixmap},
3 brush::{Brush, CircleBrush, LineBrush}, 3 brush::{Brush, CircleBrush, LineBrush},
4 cache::Cache, 4 cache::Cache,
5 command::CommandBox, 5 command::CommandBox,
6 consts::{colors::*, FONT_PATH, RC_PATH, STDLIB_PATH}, 6 consts::{colors::*, FONT_PATH, RC_PATH, STDLIB_PATH},
7 dither, 7 dither,
8 error::AppError, 8 error::AppError,
9 guide::Guide,
9 lisp::{eval, lex::Lexer, parse::Parser, prelude, EnvList}, 10 lisp::{eval, lex::Lexer, parse::Parser, prelude, EnvList},
10 message::Message, 11 message::Message,
11 rect, 12 rect,
12 symmetry::Symmetry, 13 symmetry::Symmetry,
13 undo::{ModifyRecord, OpKind, PaintRecord, UndoStack}, 14 undo::{ModifyRecord, OpKind, PaintRecord, UndoStack},
14 utils::{draw_text, handle_error, is_copy_event, is_paste_event, load_script}, 15 utils::{self, draw_text, handle_error, is_copy_event, is_paste_event, load_script},
15 widget::{Container, HorAlign, Offset, Size, VertAlign}, 16 widget::{Container, HorAlign, Offset, Size, VertAlign},
16}; 17};
17 18
18use std::{ 19use std::{
19 cell::RefCell, 20 cell::RefCell,
21 collections::HashMap,
20 convert::From, 22 convert::From,
21 fs::File, 23 fs::File,
22 io::prelude::*, 24 io::prelude::*,
@@ -52,6 +54,7 @@ pub struct AppState<'ctx> {
52 pub current_operation: Vec<PaintRecord>, 54 pub current_operation: Vec<PaintRecord>,
53 pub dither_level: u8, 55 pub dither_level: u8,
54 pub file_name: Option<PathBuf>, 56 pub file_name: Option<PathBuf>,
57 pub guides: HashMap<Guide, bool>,
55 pub grid: Grid, 58 pub grid: Grid,
56 pub lisp_env: EnvList, 59 pub lisp_env: EnvList,
57 pub message: Message, 60 pub message: Message,
@@ -604,6 +607,7 @@ impl<'ctx> AppState<'ctx> {
604 command_box: CommandBox::new(), 607 command_box: CommandBox::new(),
605 context, 608 context,
606 cache: RefCell::new(None), 609 cache: RefCell::new(None),
610 guides: HashMap::new(),
607 current_operation: Vec::new(), 611 current_operation: Vec::new(),
608 dither_level: 16, 612 dither_level: 16,
609 file_name, 613 file_name,
diff --git a/src/bitmap.rs b/src/bitmap.rs
index 2bf8556..8010a4b 100644
--- a/src/bitmap.rs
+++ b/src/bitmap.rs
@@ -4,6 +4,8 @@ use std::{
4 ops::{Add, Sub}, 4 ops::{Add, Sub},
5}; 5};
6 6
7use crate::lisp::{error::EvalError, expr::LispExpr};
8
7#[derive(Debug)] 9#[derive(Debug)]
8pub struct Pixmap<T> { 10pub struct Pixmap<T> {
9 pub width: u32, 11 pub width: u32,
@@ -71,12 +73,38 @@ impl Sub for MapPoint {
71 } 73 }
72} 74}
73 75
74#[derive(Debug, Copy, Clone)] 76#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
75pub enum Axis { 77pub enum Axis {
76 X, 78 X,
77 Y, 79 Y,
78} 80}
79 81
82impl Into<LispExpr> for Axis {
83 fn into(self) -> LispExpr {
84 LispExpr::Quote(
85 Box::new(LispExpr::Ident(match self {
86 Self::X => "X".into(),
87 Self::Y => "Y".into(),
88 })),
89 1,
90 )
91 }
92}
93
94impl TryFrom<&LispExpr> for Axis {
95 type Error = EvalError;
96 fn try_from(value: &LispExpr) -> Result<Self, Self::Error> {
97 match value {
98 LispExpr::Ident(id) => match id.as_ref() {
99 "x" => Ok(Axis::X),
100 "y" => Ok(Axis::Y),
101 _ => Err(EvalError::TypeMismatch),
102 },
103 _ => Err(EvalError::TypeMismatch),
104 }
105 }
106}
107
80#[derive(Debug, Copy, Clone)] 108#[derive(Debug, Copy, Clone)]
81pub enum Quadrant { 109pub enum Quadrant {
82 I, 110 I,
diff --git a/src/guide.rs b/src/guide.rs
index 006566e..85d0594 100644
--- a/src/guide.rs
+++ b/src/guide.rs
@@ -1,7 +1,21 @@
1use crate::bitmap::Axis; 1use crate::{
2 bitmap::Axis,
3 lisp::{expr::LispExpr, number::LispNumber},
4};
2 5
3#[derive(Debug)] 6use std::convert::Into;
7
8#[derive(Debug, Hash, PartialEq, Eq, Copy, Clone)]
4pub struct Guide { 9pub struct Guide {
5 axis: Axis, 10 pub axis: Axis,
6 offset: u32, 11 pub offset: u32,
12}
13
14impl Into<LispExpr> for Guide {
15 fn into(self) -> LispExpr {
16 LispExpr::List(vec![
17 self.axis.into(),
18 LispExpr::Number(LispNumber::Integer(self.offset as i64)),
19 ])
20 }
7} 21}
diff --git a/src/lisp/expr.rs b/src/lisp/expr.rs
index 2319601..d2066e7 100644
--- a/src/lisp/expr.rs
+++ b/src/lisp/expr.rs
@@ -1,11 +1,13 @@
1use std::{cmp::PartialEq, convert::TryFrom, fmt}; 1use std::{cmp::PartialEq, convert::TryFrom, fmt};
2 2
3use crate::app::AppState; 3use crate::{
4use crate::lisp::{ 4 app::AppState,
5 error::{EvalError, LispError}, 5 lisp::{
6 eval::lookup, 6 error::{EvalError, LispError},
7 number::LispNumber, 7 eval::lookup,
8 EnvList, 8 number::LispNumber,
9 EnvList,
10 },
9}; 11};
10 12
11#[derive(Debug, Copy, PartialEq, Clone)] 13#[derive(Debug, Copy, PartialEq, Clone)]
diff --git a/src/lisp/prelude.rs b/src/lisp/prelude.rs
index 336dbaf..aebff98 100644
--- a/src/lisp/prelude.rs
+++ b/src/lisp/prelude.rs
@@ -1,6 +1,7 @@
1use crate::{ 1use crate::{
2 bitmap::MapPoint, 2 bitmap::MapPoint,
3 brush::Brush, 3 brush::Brush,
4 guide::Guide,
4 lisp::{ 5 lisp::{
5 error::{EvalError, LispError}, 6 error::{EvalError, LispError},
6 expr::{Arity, LispExpr}, 7 expr::{Arity, LispExpr},
@@ -413,5 +414,19 @@ pub fn new_env() -> Result<Environment, LispError> {
413 return Ok(LispExpr::Unit); 414 return Ok(LispExpr::Unit);
414 }); 415 });
415 416
417 primitive!(env, Arity::Exact(2), "add-guide!", |args, app| {
418 match args {
419 [axis, LispExpr::Number(LispNumber::Integer(offset))] => {
420 let guide = Guide {
421 axis: axis.try_into()?,
422 offset: *offset as u32,
423 };
424 app.guides.insert(guide, true);
425 return Ok(LispExpr::Unit);
426 }
427 _ => return Err(EvalError::TypeMismatch.into()),
428 }
429 });
430
416 Ok(env) 431 Ok(env)
417} 432}