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extern crate orbfont; use orbclient::{self, Renderer, WindowFlag}; use orbclient::color::Color; use std::cell::{Cell, RefCell}; use std::collections::VecDeque; use std::sync::Arc; use super::{Event, Point, Rect, Widget}; use theme::WINDOW_BACKGROUND; use traits::Resize; pub use orbclient::Window as InnerWindow; pub struct WindowRenderer<'a> { inner: &'a mut InnerWindow, font: &'a Option<orbfont::Font> } impl<'a> WindowRenderer<'a> { pub fn new(inner: &'a mut InnerWindow, font: &'a Option<orbfont::Font>) -> WindowRenderer<'a> { WindowRenderer { inner: inner, font: font } } } impl<'a> Renderer for WindowRenderer<'a> { fn width(&self) -> u32 { self.inner.width() } fn height(&self) -> u32 { self.inner.height() } fn data(&self) -> &[Color] { self.inner.data() } fn data_mut(&mut self) -> &mut [Color] { self.inner.data_mut() } fn sync(&mut self) -> bool { self.inner.sync() } fn char(&mut self, x: i32, y: i32, c: char, color: Color) { if let Some(ref font) = *self.font { let mut buf = [0; 4]; font.render(&c.encode_utf8(&mut buf), 16.0).draw(self.inner, x, y, color) }else{ self.inner.char(x, y, c, color); } } } impl<'a> Drop for WindowRenderer<'a> { fn drop(&mut self) { self.inner.sync(); } } pub struct Window { inner: RefCell<InnerWindow>, font: Option<orbfont::Font>, pub widgets: RefCell<Vec<Arc<Widget>>>, pub widget_focus: Cell<usize>, pub bg: Cell<Color>, pub running: Cell<bool>, resize_callback: RefCell<Option<Arc<Fn(&Window, u32, u32)>>>, mouse_point: Point, mouse_left: bool, mouse_middle: bool, mouse_right: bool, events: VecDeque<Event>, redraw: bool, } impl Resize for Window { fn emit_resize(&self, width: u32, height: u32) { if let Some(ref resize_callback) = *self.resize_callback.borrow() { resize_callback(self, width, height); } } fn on_resize<T: Fn(&Self, u32, u32) + 'static>(&self, func: T) -> &Self { *self.resize_callback.borrow_mut() = Some(Arc::new(func)); self } } impl Window { pub fn new(rect: Rect, title: &str) -> Self { Window::new_flags(rect, title, &[]) } pub fn new_flags(rect: Rect, title: &str, flags: &[WindowFlag]) -> Self { Window::from_inner( InnerWindow::new_flags( rect.x, rect.y, rect.width, rect.height, title, flags ).unwrap() ) } pub fn from_inner(inner: InnerWindow) -> Self { let mut events = VecDeque::new(); events.push_back(Event::Init); Window { inner: RefCell::new(inner), font: orbfont::Font::find(None, None, None).ok(), widgets: RefCell::new(Vec::new()), widget_focus: Cell::new(0), bg: Cell::new(WINDOW_BACKGROUND), running: Cell::new(true), resize_callback: RefCell::new(None), mouse_point: Point::new(0, 0), mouse_left: false, mouse_right: false, mouse_middle: false, events: events, redraw: true, } } pub fn into_inner(self) -> InnerWindow { self.inner.into_inner() } pub fn x(&self) -> i32 { let inner = self.inner.borrow(); (*inner).x() } pub fn y(&self) -> i32 { let inner = self.inner.borrow(); (*inner).y() } pub fn width(&self) -> u32 { let inner = self.inner.borrow(); (*inner).width() } pub fn height(&self) -> u32 { let inner = self.inner.borrow(); (*inner).height() } pub fn title(&self) -> String { let inner = self.inner.borrow(); (*inner).title() } pub fn set_pos(&self, x: i32, y: i32) { let mut inner = self.inner.borrow_mut(); (*inner).set_pos(x, y); } pub fn set_size(&self, width: u32, height: u32) { let mut inner = self.inner.borrow_mut(); (*inner).set_size(width, height); } pub fn set_title(&self, title: &str) { let mut inner = self.inner.borrow_mut(); (*inner).set_title(title); } pub fn close(&self) { self.running.set(false); } pub fn add<T: Widget>(&self, widget: &Arc<T>) -> usize { let mut widgets = self.widgets.borrow_mut(); let id = widgets.len(); widgets.push(widget.clone()); id } pub fn draw(&self) { let mut inner = self.inner.borrow_mut(); inner.set(self.bg.get()); let mut renderer = WindowRenderer::new(&mut *inner, &self.font); for i in 0..self.widgets.borrow().len() { if let Some(widget) = self.widgets.borrow().get(i) { widget.draw(&mut renderer, self.widget_focus.get() == i); } } } pub fn step(&mut self) { self.drain_orbital_events(); self.drain_events(); } pub fn drain_events(&mut self) { while let Some(event) = self.events.pop_front() { match event { Event::Resize { width, height } => { self.emit_resize(width, height); }, _ => () } for i in 0..self.widgets.borrow().len() { if let Some(widget) = self.widgets.borrow().get(i) { if widget.event(event, self.widget_focus.get() == i, &mut self.redraw) { if self.widget_focus.get() != i { self.widget_focus.set(i); self.redraw = true; } } } } } } pub fn drain_orbital_events(&mut self) { for orbital_event in self.inner.borrow_mut().events() { match orbital_event.to_option() { orbclient::EventOption::Mouse(mouse_event) => { self.mouse_point.x = mouse_event.x; self.mouse_point.y = mouse_event.y; self.events.push_back(Event::Mouse { point: self.mouse_point, left_button: self.mouse_left, middle_button: self.mouse_middle, right_button: self.mouse_right, }) }, orbclient::EventOption::Button(button_event) => { self.mouse_left = button_event.left; self.mouse_middle = button_event.middle; self.mouse_right = button_event.right; self.events.push_back(Event::Mouse { point: self.mouse_point, left_button: self.mouse_left, middle_button: self.mouse_middle, right_button: self.mouse_right, }) }, orbclient::EventOption::Scroll(scroll_event) => { self.events.push_back(Event::Scroll { x: scroll_event.x, y: scroll_event.y, }) }, orbclient::EventOption::Key(key_event) => { if key_event.pressed { match key_event.scancode { orbclient::K_BKSP => self.events.push_back(Event::Backspace), orbclient::K_DEL => self.events.push_back(Event::Delete), orbclient::K_HOME => self.events.push_back(Event::Home), orbclient::K_END => self.events.push_back(Event::End), orbclient::K_UP => self.events.push_back(Event::UpArrow), orbclient::K_DOWN => self.events.push_back(Event::DownArrow), orbclient::K_LEFT => self.events.push_back(Event::LeftArrow), orbclient::K_RIGHT => self.events.push_back(Event::RightArrow), _ => { match key_event.character { '\0' => (), '\x1B' => (), '\n' => self.events.push_back(Event::Enter), _ => self.events.push_back(Event::Text { c: key_event.character }), } } } } }, orbclient::EventOption::Resize(resize_event) => { self.redraw = true; self.events.push_back(Event::Resize { width: resize_event.width, height: resize_event.height, }); }, orbclient::EventOption::Quit(_quit_event) => { self.running.set(false); }, _ => (), }; } } pub fn exec(&mut self) { 'event: while self.running.get() { self.drain_events(); self.draw_if_needed(); self.drain_orbital_events(); } } pub fn needs_redraw(&mut self) { self.redraw = true; } pub fn draw_if_needed(&mut self) { if self.redraw { self.draw(); self.redraw = false; } } }