mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-09 19:00:46 +00:00
Add MenuPopup view
This commit is contained in:
parent
c2300bb8c7
commit
1863e48b07
@ -13,6 +13,7 @@ version = "0.0.2"
|
||||
ncurses = "5.80.0"
|
||||
toml = "0.1"
|
||||
unicode-segmentation = "0.1.2"
|
||||
unicode-width = "0.1.3"
|
||||
|
||||
[lib]
|
||||
name = "cursive"
|
||||
|
@ -23,6 +23,7 @@
|
||||
extern crate ncurses;
|
||||
extern crate toml;
|
||||
extern crate unicode_segmentation;
|
||||
extern crate unicode_width;
|
||||
|
||||
pub mod event;
|
||||
pub mod view;
|
||||
|
14
src/menu.rs
14
src/menu.rs
@ -13,11 +13,25 @@ pub enum MenuItem {
|
||||
Delimiter,
|
||||
}
|
||||
|
||||
impl MenuItem {
|
||||
pub fn label(&self) -> &str {
|
||||
match *self {
|
||||
MenuItem::Delimiter => "",
|
||||
MenuItem::Leaf(ref label, _) |
|
||||
MenuItem::Subtree(ref label, _) => label,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl MenuTree {
|
||||
pub fn new() -> Self {
|
||||
Self::default()
|
||||
}
|
||||
|
||||
pub fn len(&self) -> usize {
|
||||
self.children.len()
|
||||
}
|
||||
|
||||
pub fn clear(&mut self) {
|
||||
self.children.clear();
|
||||
}
|
||||
|
@ -139,6 +139,18 @@ impl Printer {
|
||||
self.print_vline(start_v + (0, 1) + size_v.keep_x(), size_v.y - 1, "│");
|
||||
}
|
||||
|
||||
pub fn with_selection<F: FnOnce(&Printer)>(&self, selection: bool, f: F) {
|
||||
self.with_color(if selection {
|
||||
if self.focused {
|
||||
ColorStyle::Highlight
|
||||
} else {
|
||||
ColorStyle::HighlightInactive
|
||||
}
|
||||
} else {
|
||||
ColorStyle::Primary
|
||||
}, f);
|
||||
}
|
||||
|
||||
pub fn print_hdelim<T: ToVec2>(&self, start: T, len: usize) {
|
||||
let start = start.to_vec2();
|
||||
self.print(start, "├");
|
||||
|
92
src/view/menu_popup.rs
Normal file
92
src/view/menu_popup.rs
Normal file
@ -0,0 +1,92 @@
|
||||
use std::rc::Rc;
|
||||
|
||||
use unicode_width::UnicodeWidthStr;
|
||||
|
||||
use menu::{MenuItem, MenuTree};
|
||||
use printer::Printer;
|
||||
use view::View;
|
||||
use view::scroll::ScrollBase;
|
||||
use align::Align;
|
||||
use vec::Vec2;
|
||||
|
||||
/// fd
|
||||
pub struct MenuPopup {
|
||||
menu: Rc<MenuTree>,
|
||||
focus: usize,
|
||||
scrollbase: ScrollBase,
|
||||
align: Align,
|
||||
}
|
||||
|
||||
impl MenuPopup {
|
||||
pub fn new(menu: Rc<MenuTree>) -> Self {
|
||||
MenuPopup {
|
||||
menu: menu,
|
||||
focus: 0,
|
||||
scrollbase: ScrollBase::new(),
|
||||
align: Align::top_left(),
|
||||
}
|
||||
}
|
||||
|
||||
/// Sets the alignment for this view.
|
||||
pub fn align(mut self, align: Align) -> Self {
|
||||
self.align = align;
|
||||
|
||||
self
|
||||
}
|
||||
}
|
||||
|
||||
impl View for MenuPopup {
|
||||
fn draw(&mut self, printer: &Printer) {
|
||||
let h = self.menu.len();
|
||||
let offset = self.align.v.get_offset(h, printer.size.y);
|
||||
let printer = &printer.sub_printer(Vec2::new(0, offset),
|
||||
printer.size,
|
||||
true);
|
||||
|
||||
// Start with a box
|
||||
printer.print_box(Vec2::new(0, 0), printer.size);
|
||||
|
||||
// We're giving it a reduced size because of borders.
|
||||
// But we're keeping the full width,
|
||||
// to integrate horizontal delimiters in the frame.
|
||||
let size = printer.size - (0, 2);
|
||||
let printer = printer.sub_printer(Vec2::new(0, 1), size, true);
|
||||
self.scrollbase.draw(&printer, |printer, i| {
|
||||
printer.with_selection(i == self.focus, |printer| {
|
||||
let item = &self.menu.children[i];
|
||||
match *item {
|
||||
MenuItem::Delimiter => {
|
||||
printer.print_hdelim((0, 0), printer.size.x)
|
||||
}
|
||||
MenuItem::Subtree(ref label, _) |
|
||||
MenuItem::Leaf(ref label, _) => {
|
||||
printer.print((2, 0), label)
|
||||
}
|
||||
}
|
||||
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
fn get_min_size(&self, req: Vec2) -> Vec2 {
|
||||
// We can't really shrink our items here, so it's not flexible.
|
||||
let w = self.menu
|
||||
.children
|
||||
.iter()
|
||||
.map(|item| item.label().width())
|
||||
.max()
|
||||
.unwrap_or(1);
|
||||
let h = self.menu.children.len();
|
||||
|
||||
|
||||
let scrolling = req.y < h;
|
||||
|
||||
let w = if scrolling {
|
||||
w + 2
|
||||
} else {
|
||||
w
|
||||
};
|
||||
|
||||
Vec2::new(w, h)
|
||||
}
|
||||
}
|
@ -19,6 +19,7 @@ mod full_view;
|
||||
mod id_view;
|
||||
mod key_event_view;
|
||||
mod linear_layout;
|
||||
mod menu_popup;
|
||||
mod shadow_view;
|
||||
mod select_view;
|
||||
mod sized_view;
|
||||
@ -45,6 +46,7 @@ pub use self::edit_view::EditView;
|
||||
pub use self::full_view::FullView;
|
||||
pub use self::key_event_view::KeyEventView;
|
||||
pub use self::linear_layout::LinearLayout;
|
||||
pub use self::menu_popup::MenuPopup;
|
||||
pub use self::view_path::ViewPath;
|
||||
pub use self::select_view::SelectView;
|
||||
pub use self::shadow_view::ShadowView;
|
||||
|
@ -1,51 +0,0 @@
|
||||
use vec::ToVec2;
|
||||
|
||||
/// Describe constraints on a view layout in one dimension.
|
||||
#[derive(PartialEq,Clone,Copy)]
|
||||
pub enum DimensionRequest {
|
||||
/// The view must use exactly the attached size.
|
||||
Fixed(usize),
|
||||
/// The view is free to choose its size if it stays under the limit.
|
||||
AtMost(usize),
|
||||
/// No clear restriction apply.
|
||||
Unknown,
|
||||
}
|
||||
|
||||
impl DimensionRequest {
|
||||
/// Returns a new request, reduced from the original by the given offset.
|
||||
pub fn reduced(self, offset: usize) -> Self {
|
||||
match self {
|
||||
DimensionRequest::Fixed(w) => DimensionRequest::Fixed(w - offset),
|
||||
DimensionRequest::AtMost(w) => DimensionRequest::AtMost(w - offset),
|
||||
DimensionRequest::Unknown => DimensionRequest::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Describes constraints on a view layout.
|
||||
#[derive(PartialEq,Clone,Copy)]
|
||||
pub struct SizeRequest {
|
||||
/// Restriction on the view width
|
||||
pub w: DimensionRequest,
|
||||
/// Restriction on the view height
|
||||
pub h: DimensionRequest,
|
||||
}
|
||||
|
||||
impl SizeRequest {
|
||||
/// Returns a new SizeRequest, reduced from the original by the given offset.
|
||||
pub fn reduced<T: ToVec2>(self, offset: T) -> Self {
|
||||
let ov = offset.to_vec2();
|
||||
SizeRequest {
|
||||
w: self.w.reduced(ov.x),
|
||||
h: self.h.reduced(ov.y),
|
||||
}
|
||||
}
|
||||
|
||||
/// Creates a new dummy request, with no restriction.
|
||||
pub fn dummy() -> Self {
|
||||
SizeRequest {
|
||||
w: DimensionRequest::Unknown,
|
||||
h: DimensionRequest::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
@ -1,14 +1,13 @@
|
||||
use std::cmp::min;
|
||||
use std::rc::Rc;
|
||||
|
||||
use theme::ColorStyle;
|
||||
use Cursive;
|
||||
use align::*;
|
||||
use view::{IdView, View};
|
||||
use align::{Align, HAlign, VAlign};
|
||||
use view::scroll::ScrollBase;
|
||||
use event::{Event, EventResult, Key};
|
||||
use vec::Vec2;
|
||||
use printer::Printer;
|
||||
use super::scroll::ScrollBase;
|
||||
|
||||
struct Item<T> {
|
||||
label: String,
|
||||
@ -128,19 +127,12 @@ impl<T: 'static> View for SelectView<T> {
|
||||
|
||||
let h = self.items.len();
|
||||
let offset = self.align.v.get_offset(h, printer.size.y);
|
||||
let printer = &printer.sub_printer(Vec2::new(0, offset), printer.size, true);
|
||||
let printer = &printer.sub_printer(Vec2::new(0, offset),
|
||||
printer.size,
|
||||
true);
|
||||
|
||||
self.scrollbase.draw(printer, |printer, i| {
|
||||
let style = if i == self.focus {
|
||||
if printer.focused {
|
||||
ColorStyle::Highlight
|
||||
} else {
|
||||
ColorStyle::HighlightInactive
|
||||
}
|
||||
} else {
|
||||
ColorStyle::Primary
|
||||
};
|
||||
printer.with_color(style, |printer| {
|
||||
printer.with_selection(i == self.focus, |printer| {
|
||||
let l = self.items[i].label.chars().count();
|
||||
let x = self.align.h.get_offset(l, printer.size.x);
|
||||
printer.print_hline((0, 0), x, " ");
|
||||
@ -176,9 +168,13 @@ impl<T: 'static> View for SelectView<T> {
|
||||
fn on_event(&mut self, event: Event) -> EventResult {
|
||||
match event {
|
||||
Event::Key(Key::Up) if self.focus > 0 => self.focus -= 1,
|
||||
Event::Key(Key::Down) if self.focus + 1 < self.items.len() => self.focus += 1,
|
||||
Event::Key(Key::Down) if self.focus + 1 < self.items.len() => {
|
||||
self.focus += 1
|
||||
}
|
||||
Event::Key(Key::PageUp) => self.focus -= min(self.focus, 10),
|
||||
Event::Key(Key::PageDown) => self.focus = min(self.focus + 10, self.items.len() - 1),
|
||||
Event::Key(Key::PageDown) => {
|
||||
self.focus = min(self.focus + 10, self.items.len() - 1)
|
||||
}
|
||||
Event::Key(Key::Home) => self.focus = 0,
|
||||
Event::Key(Key::End) => self.focus = self.items.len() - 1,
|
||||
Event::Key(Key::Enter) if self.select_cb.is_some() => {
|
||||
@ -197,7 +193,9 @@ impl<T: 'static> View for SelectView<T> {
|
||||
let iter = self.items.iter().chain(self.items.iter());
|
||||
if let Some((i, _)) = iter.enumerate()
|
||||
.skip(self.focus + 1)
|
||||
.find(|&(_, item)| item.label.starts_with(c)) {
|
||||
.find(|&(_, item)| {
|
||||
item.label.starts_with(c)
|
||||
}) {
|
||||
// Apply modulo in case we have a hit
|
||||
// from the chained iterator
|
||||
self.focus = i % self.items.len();
|
||||
|
Loading…
Reference in New Issue
Block a user