263 lines
6.8 KiB
Rust
263 lines
6.8 KiB
Rust
![]() |
use std::slice::Iter;
|
||
|
|
||
|
use super::{Line, UiModel, Cell};
|
||
|
|
||
|
|
||
|
#[derive(Clone, Debug)]
|
||
|
pub struct ModelRectVec {
|
||
|
pub list: Vec<ModelRect>,
|
||
|
}
|
||
|
|
||
|
impl ModelRectVec {
|
||
|
pub fn new(first: ModelRect) -> ModelRectVec {
|
||
|
ModelRectVec { list: vec![first] }
|
||
|
}
|
||
|
|
||
|
fn find_neighbor(&self, neighbor: &ModelRect) -> Option<usize> {
|
||
|
for (i, rect) in self.list.iter().enumerate() {
|
||
|
if (neighbor.top > 0 && rect.top == neighbor.top - 1 ||
|
||
|
rect.bot == neighbor.bot + 1) && neighbor.in_horizontal(rect) {
|
||
|
return Some(i);
|
||
|
} else if (neighbor.left > 0 && rect.left == neighbor.left - 1 ||
|
||
|
rect.right == neighbor.right + 1) &&
|
||
|
neighbor.in_vertical(rect) {
|
||
|
return Some(i);
|
||
|
} else if rect.in_horizontal(neighbor) && rect.in_vertical(neighbor) {
|
||
|
return Some(i);
|
||
|
} else if rect.contains(neighbor) {
|
||
|
return Some(i);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
None
|
||
|
}
|
||
|
|
||
|
pub fn join(&mut self, other: &ModelRect) {
|
||
|
match self.find_neighbor(other) {
|
||
|
Some(i) => self.list[i].join(other),
|
||
|
None => self.list.push(other.clone()),
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#[derive(Clone, PartialEq, Debug)]
|
||
|
pub struct ModelRect {
|
||
|
pub top: usize,
|
||
|
pub bot: usize,
|
||
|
pub left: usize,
|
||
|
pub right: usize,
|
||
|
}
|
||
|
|
||
|
impl ModelRect {
|
||
|
pub fn new(top: usize, bot: usize, left: usize, right: usize) -> ModelRect {
|
||
|
debug_assert!(top <= bot);
|
||
|
debug_assert!(left <= right);
|
||
|
|
||
|
ModelRect {
|
||
|
top: top,
|
||
|
bot: bot,
|
||
|
left: left,
|
||
|
right: right,
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub fn point(x: usize, y: usize) -> ModelRect {
|
||
|
ModelRect {
|
||
|
top: y,
|
||
|
bot: y,
|
||
|
left: x,
|
||
|
right: x,
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#[inline]
|
||
|
fn in_horizontal(&self, other: &ModelRect) -> bool {
|
||
|
other.left >= self.left && other.left <= self.right ||
|
||
|
other.right >= self.left && other.right >= self.right
|
||
|
}
|
||
|
|
||
|
#[inline]
|
||
|
fn in_vertical(&self, other: &ModelRect) -> bool {
|
||
|
other.top >= self.top && other.top <= self.bot ||
|
||
|
other.bot >= self.top && other.bot <= self.bot
|
||
|
}
|
||
|
|
||
|
fn contains(&self, other: &ModelRect) -> bool {
|
||
|
self.top <= other.top && self.bot >= other.bot && self.left <= other.left &&
|
||
|
self.right >= other.right
|
||
|
}
|
||
|
|
||
|
pub fn extend(&mut self, top: usize, bot: usize, left: usize, right: usize) {
|
||
|
if self.top > 0 {
|
||
|
self.top -= top;
|
||
|
}
|
||
|
if self.left > 0 {
|
||
|
self.left -= left;
|
||
|
}
|
||
|
self.bot += bot;
|
||
|
self.right += right;
|
||
|
}
|
||
|
|
||
|
/// Extend rect to left and right to make change Item rerendered
|
||
|
pub fn extend_by_items(&mut self, model: &UiModel) {
|
||
|
let mut left = self.left;
|
||
|
let mut right = self.right;
|
||
|
|
||
|
for i in self.top..self.bot + 1 {
|
||
|
let line = &model.model[i];
|
||
|
let item_idx = line.cell_to_item(self.left);
|
||
|
if item_idx >= 0 {
|
||
|
let item_idx = item_idx as usize;
|
||
|
if item_idx < left {
|
||
|
left = item_idx;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
let len_since_right = line.item_len_from_idx(self.right) - 1;
|
||
|
if right < self.right + len_since_right {
|
||
|
right = self.right + len_since_right;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub fn join(&mut self, rect: &ModelRect) {
|
||
|
self.top = if self.top < rect.top {
|
||
|
self.top
|
||
|
} else {
|
||
|
rect.top
|
||
|
};
|
||
|
self.left = if self.left < rect.left {
|
||
|
self.left
|
||
|
} else {
|
||
|
rect.left
|
||
|
};
|
||
|
|
||
|
self.bot = if self.bot > rect.bot {
|
||
|
self.bot
|
||
|
} else {
|
||
|
rect.bot
|
||
|
};
|
||
|
self.right = if self.right > rect.right {
|
||
|
self.right
|
||
|
} else {
|
||
|
rect.right
|
||
|
};
|
||
|
|
||
|
debug_assert!(self.top <= self.bot);
|
||
|
debug_assert!(self.left <= self.right);
|
||
|
}
|
||
|
|
||
|
pub fn to_area(&self, line_height: f64, char_width: f64) -> (i32, i32, i32, i32) {
|
||
|
(self.left as i32 * char_width as i32,
|
||
|
self.top as i32 * line_height as i32,
|
||
|
(self.right - self.left + 1) as i32 * char_width as i32,
|
||
|
(self.bot - self.top + 1) as i32 * line_height as i32)
|
||
|
}
|
||
|
|
||
|
pub fn from_area(line_height: f64,
|
||
|
char_width: f64,
|
||
|
x1: f64,
|
||
|
y1: f64,
|
||
|
x2: f64,
|
||
|
y2: f64)
|
||
|
-> ModelRect {
|
||
|
let x2 = if x2 > 0.0 { x2 - 1.0 } else { x2 };
|
||
|
let y2 = if y2 > 0.0 { y2 - 1.0 } else { y2 };
|
||
|
let left = (x1 / char_width) as usize;
|
||
|
let right = (x2 / char_width) as usize;
|
||
|
let top = (y1 / line_height) as usize;
|
||
|
let bot = (y2 / line_height) as usize;
|
||
|
|
||
|
ModelRect::new(top, bot, left, right)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl AsRef<ModelRect> for ModelRect {
|
||
|
fn as_ref(&self) -> &ModelRect {
|
||
|
self
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub struct ClipRowIterator<'a> {
|
||
|
rect: &'a ModelRect,
|
||
|
pos: usize,
|
||
|
iter: Iter<'a, Line>,
|
||
|
}
|
||
|
|
||
|
impl<'a> ClipRowIterator<'a> {
|
||
|
pub fn new(model: &'a UiModel, rect: &'a ModelRect) -> ClipRowIterator<'a> {
|
||
|
ClipRowIterator {
|
||
|
rect: rect,
|
||
|
pos: 0,
|
||
|
iter: model.model()[rect.top..rect.bot + 1].iter(),
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<'a> Iterator for ClipRowIterator<'a> {
|
||
|
type Item = (usize, ClipLine<'a>);
|
||
|
|
||
|
fn next(&mut self) -> Option<(usize, ClipLine<'a>)> {
|
||
|
self.pos += 1;
|
||
|
self.iter
|
||
|
.next()
|
||
|
.map(|line| (self.rect.top + self.pos - 1, ClipLine::new(line, self.rect)))
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub struct ClipLine<'a> {
|
||
|
rect: &'a ModelRect,
|
||
|
line: &'a Line,
|
||
|
}
|
||
|
|
||
|
impl<'a> ClipLine<'a> {
|
||
|
pub fn new(model: &'a Line, rect: &'a ModelRect) -> ClipLine<'a> {
|
||
|
ClipLine {
|
||
|
line: model,
|
||
|
rect: rect,
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#[inline]
|
||
|
pub fn is_double_width(&self, col_idx: usize) -> bool {
|
||
|
self.get(col_idx + 1)
|
||
|
.map(|c| c.attrs.double_width)
|
||
|
.unwrap_or(false)
|
||
|
}
|
||
|
|
||
|
pub fn get(&self, idx: usize) -> Option<&Cell> {
|
||
|
self.line.line.get(idx)
|
||
|
}
|
||
|
|
||
|
pub fn iter(&self) -> ClipColIterator<'a> {
|
||
|
ClipColIterator::new(self.line, self.rect)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub struct ClipColIterator<'a> {
|
||
|
rect: &'a ModelRect,
|
||
|
pos: usize,
|
||
|
iter: Iter<'a, Cell>,
|
||
|
}
|
||
|
|
||
|
impl<'a> ClipColIterator<'a> {
|
||
|
pub fn new(model: &'a Line, rect: &'a ModelRect) -> ClipColIterator<'a> {
|
||
|
ClipColIterator {
|
||
|
rect: rect,
|
||
|
pos: 0,
|
||
|
iter: model.line[rect.left..rect.right + 1].iter(),
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<'a> Iterator for ClipColIterator<'a> {
|
||
|
type Item = (usize, &'a Cell);
|
||
|
|
||
|
fn next(&mut self) -> Option<(usize, &'a Cell)> {
|
||
|
self.pos += 1;
|
||
|
self.iter
|
||
|
.next()
|
||
|
.map(|line| (self.rect.left + self.pos - 1, line))
|
||
|
}
|
||
|
}
|