FantasyPvP
140ac0ab32
updated grapher to use new widtgets system (not working yet but close) made a basic app using the widgets system implemented CgTextEdit for CgLineEdit (now fully working, but there may be bugs so i'll address them tomorrow)
83 lines
2.4 KiB
Rust
83 lines
2.4 KiB
Rust
use alloc::string::String;
|
|
use alloc::vec::Vec;
|
|
use crate::std::frame::{ColouredChar, Dimensions, Frame, Position, RenderError};
|
|
use crate::user::lib::libgui::cg_core::{CgComponent, CgTextEdit};
|
|
|
|
#[derive(Debug, Clone)]
|
|
pub struct CgLineEdit {
|
|
pub position: Position,
|
|
pub dimensions: Dimensions,
|
|
pub prompt: String,
|
|
pub text: Vec<char>,
|
|
pub ptr: usize, // cursor position
|
|
}
|
|
|
|
impl CgLineEdit {
|
|
pub fn new(position: Position, width: usize, prompt: String) -> CgLineEdit {
|
|
CgLineEdit {
|
|
position,
|
|
dimensions: Dimensions::new(width, 1),
|
|
prompt: prompt,
|
|
text: Vec::new(),
|
|
ptr: 0
|
|
}
|
|
}
|
|
}
|
|
|
|
impl CgComponent for CgLineEdit {
|
|
fn render(&self) -> Result<Frame, RenderError> {
|
|
let mut frame = Frame::new(self.position, self.dimensions)?;
|
|
let mut idx = 0;
|
|
|
|
for c in self.prompt.chars() {
|
|
if idx >= self.dimensions.x {
|
|
break;
|
|
}
|
|
frame.write(Position::new(idx, 0), ColouredChar::new(c));
|
|
idx += 1
|
|
}
|
|
|
|
idx += 1; // create a space between the prompt and the text
|
|
|
|
if idx + self.text.len() > self.dimensions.x {
|
|
frame.write(Position::new(idx, 0), ColouredChar::new('['));
|
|
frame.write(Position::new(idx + 1, 0), ColouredChar::new('.'));
|
|
frame.write(Position::new(idx + 2, 0), ColouredChar::new('.'));
|
|
frame.write(Position::new(idx + 3, 0), ColouredChar::new('.'));
|
|
frame.write(Position::new(idx + 4, 0), ColouredChar::new(']'));
|
|
idx += 5
|
|
}
|
|
|
|
|
|
self.text.iter().rev().take(self.dimensions.x - idx).rev().for_each(|c| {
|
|
frame.write(Position::new(idx, 0), ColouredChar::new(*c));
|
|
idx += 1
|
|
});
|
|
|
|
Ok(frame)
|
|
}
|
|
}
|
|
|
|
impl CgTextEdit for CgLineEdit {
|
|
fn write_char(&mut self, c: char) {
|
|
self.text.insert(self.ptr, c);
|
|
self.ptr += 1;
|
|
}
|
|
fn backspace(&mut self) {
|
|
if self.ptr >= 0 {
|
|
self.ptr -= 1;
|
|
self.text.remove(self.ptr);
|
|
}
|
|
}
|
|
fn move_cursor(&mut self, direction: bool) {
|
|
match direction {
|
|
true => if self.ptr < self.text.len() { self.ptr += 1; },
|
|
false => if self.ptr > 0 { self.ptr -= 1; },
|
|
}
|
|
}
|
|
fn clear(&mut self) {
|
|
self.text.clear();
|
|
self.ptr = 0
|
|
}
|
|
}
|