use crate::prelude::*;
pub struct TheMenu {
id: TheId,
limiter: TheSizeLimiter,
menus: Vec<TheContextMenu>,
menus_text: Vec<TheDim>,
hovered: Option<usize>,
selected: Option<usize>,
opaque: bool,
dim: TheDim,
is_dirty: bool,
}
impl TheWidget for TheMenu {
fn new(id: TheId) -> Self
where
Self: Sized,
{
let mut limiter = TheSizeLimiter::new();
limiter.set_max_height(22);
Self {
id,
limiter,
dim: TheDim::zero(),
is_dirty: false,
menus: Vec::new(),
menus_text: Vec::new(),
hovered: None,
selected: None,
opaque: true,
}
}
fn id(&self) -> &TheId {
&self.id
}
fn on_event(&mut self, event: &TheEvent, ctx: &mut TheContext) -> bool {
let mut redraw = false;
match event {
TheEvent::MouseDown(coord) => {
for i in 0..self.menus.len() {
if self.menus_text[i].contains(*coord) {
self.hovered = Some(i);
self.selected = self.hovered;
if let Some(selected) = self.selected {
ctx.ui.send(TheEvent::ShowMenu(
self.id().clone(),
Vec2::new(
self.dim.x + self.menus_text[selected].x,
self.dim.y + self.menus_text[selected].y + 22,
),
self.menus[selected].clone(),
));
self.is_dirty = true;
redraw = true;
}
}
}
}
TheEvent::Hover(coord) => {
ctx.ui.set_hover(self.id());
let old = self.hovered;
self.hovered = None;
for i in 0..self.menus.len() {
if self.menus_text[i].contains(*coord) {
self.hovered = Some(i);
if self.selected.is_some() && self.selected != Some(i) {
self.selected = self.hovered;
if let Some(selected) = self.selected {
ctx.ui.send(TheEvent::ShowMenu(
self.id().clone(),
Vec2::new(
self.dim.x + self.menus_text[selected].x,
self.dim.y + self.menus_text[selected].y + 22,
),
self.menus[selected].clone(),
));
}
}
}
}
if self.hovered != old {
redraw = true;
self.is_dirty = true;
}
}
TheEvent::ContextMenuClosed(id) => {
if *id == self.id {
self.selected = None;
self.hovered = None;
self.is_dirty = true;
redraw = true;
}
}
TheEvent::LostHover(_) => {
if self.hovered.is_some() && self.selected.is_none() {
self.is_dirty = true;
self.hovered = None;
redraw = true;
}
}
_ => {}
}
redraw
}
fn dim(&self) -> &TheDim {
&self.dim
}
fn dim_mut(&mut self) -> &mut TheDim {
&mut self.dim
}
fn set_dim(&mut self, dim: TheDim, _ctx: &mut TheContext) {
if self.dim != dim {
self.dim = dim;
self.is_dirty = true;
self.menus_text.clear();
let mut x = 10;
let width = 80;
for _ in 0..self.menus.len() {
let dim = TheDim::new(x, 3, width, 18);
self.menus_text.push(dim);
x += width
}
}
}
fn supports_hover(&mut self) -> bool {
true
}
fn limiter(&self) -> &TheSizeLimiter {
&self.limiter
}
fn limiter_mut(&mut self) -> &mut TheSizeLimiter {
&mut self.limiter
}
fn needs_redraw(&mut self) -> bool {
self.is_dirty
}
fn draw(
&mut self,
buffer: &mut TheRGBABuffer,
style: &mut Box<dyn TheStyle>,
ctx: &mut TheContext,
) {
if !self.dim().is_valid() {
return;
}
let stride = buffer.stride();
let utuple: (usize, usize, usize, usize) = self.dim.to_buffer_utuple();
if self.opaque {
if let Some(icon) = ctx.ui.icon("dark_menu") {
for x in 0..utuple.2 {
let r = (utuple.0 + x, utuple.1, 1, icon.dim().height as usize);
ctx.draw
.copy_slice(buffer.pixels_mut(), icon.pixels(), &r, stride);
}
}
}
let r = self.dim.to_buffer_utuple();
for i in 0..self.menus.len() {
let tr = self.menus_text[i];
let rect = (
r.0 + tr.x as usize,
r.1 + tr.y as usize,
tr.width as usize,
tr.height as usize,
);
if self.hovered == Some(i) || self.selected == Some(i) {
ctx.draw.rounded_rect(
buffer.pixels_mut(),
&(rect.0, rect.1 - 2, rect.2, rect.3 + 2),
stride,
style.theme().color(MenuHover),
&(2.0, 2.0, 2.0, 2.0),
);
}
ctx.draw.text_rect_blend(
buffer.pixels_mut(),
&rect,
stride,
&self.menus[i].name,
TheFontSettings {
size: 14.0,
..Default::default()
},
if self.selected == Some(i) {
style.theme().color(MenuTextHighlighted)
} else {
style.theme().color(MenuText)
},
TheHorizontalAlign::Center,
TheVerticalAlign::Center,
);
}
self.is_dirty = false;
}
fn as_any(&mut self) -> &mut dyn std::any::Any {
self
}
fn as_menu(&mut self) -> Option<&mut dyn TheMenuTrait> {
Some(self)
}
}
pub trait TheMenuTrait {
fn add_context_menu(&mut self, context_menu: TheContextMenu);
fn replace_context_menu(&mut self, context_menu: TheContextMenu);
fn set_opaque(&mut self, opaque: bool);
}
impl TheMenuTrait for TheMenu {
fn add_context_menu(&mut self, context_menu: TheContextMenu) {
self.menus.push(context_menu);
}
fn replace_context_menu(&mut self, context_menu: TheContextMenu) {
for i in 0..self.menus.len() {
if self.menus[i].name == context_menu.name {
self.menus[i] = context_menu;
return;
}
}
}
fn set_opaque(&mut self, opaque: bool) {
self.opaque = opaque;
self.is_dirty = true;
}
}