1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
use super::*; use std::sync::Arc; use util::{caption::CaptionMut, state::{AtomStateMut, AtomState}}; use validation::{ValidationMut, Validation}; impl<'w,E,Text,GlyphCache> Widget<E> for Label<'w,E,Text,GlyphCache> where E: Env, ERenderer<E>: RenderStdWidgets<E>, EEvent<E>: StdVarSup<E>, Text: Caption<E>+Validation<E>+'w, GlyphCache: AtomState<E,LocalGlyphCache<E>>+Clone, { fn child_paths(&self, _: E::WidgetPath) -> Vec<E::WidgetPath> { vec![] } fn id(&self) -> E::WidgetID { self.id.clone() } fn _render(&self, l: Link<E>, r: &mut RenderLink<E>) { let mut r = r.with_style(&self.style); r.with(&[ StdSelectag::ObjForeground, StdSelectag::ObjText, ][..]) .render_text(self.text.caption().as_ref(),self.align,l.ctx); } fn _event_direct(&self, _: Link<E>, _: &EventCompound<E>) -> EventResp { false } fn _size(&self, l: Link<E>, _: &EStyle<E>) -> ESize<E> { let ms = self.glyphs(l).size(); let ms = ESize::<E>::fixed(ms.w, ms.h); ms.max( &self.size ) } fn childs(&self) -> usize { 0 } fn childs_ref(&self) -> Vec<Resolvable<E>> { vec![] } fn into_childs<'a>(self: Box<Self>) -> Vec<Resolvable<'a,E>> where Self: 'a { vec![] } fn child_bounds(&self, _: Link<E>, _: &Bounds, e: &EStyle<E>, _: bool) -> Result<Vec<Bounds>,()> { Ok(vec![]) } fn focusable(&self) -> bool { false } fn child(&self, _: usize) -> Result<Resolvable<E>,()> { Err(()) } fn into_child<'a>(self: Box<Self>, _: usize) -> Result<Resolvable<'a,E>,()> where Self: 'a { Err(()) } impl_traitcast!( dyn AtomState<E,LocalGlyphCache<E>> => |s| &s.glyph_cache; dyn Validation<E> => |s| &s.text; dyn Caption<E> => |s| &s.text; ); } impl<'w,E,Text,GlyphCache> WidgetMut<E> for Label<'w,E,Text,GlyphCache> where E: Env, ERenderer<E>: RenderStdWidgets<E>, EEvent<E>: StdVarSup<E>, Text: CaptionMut<E>+ValidationMut<E>+'w, GlyphCache: AtomStateMut<E,LocalGlyphCache<E>>+Clone, { fn childs_mut(&mut self) -> Vec<ResolvableMut<E>> { vec![] } fn into_childs_mut<'a>(self: Box<Self>) -> Vec<ResolvableMut<'a,E>> where Self: 'a { vec![] } fn child_mut(&mut self, _: usize) -> Result<ResolvableMut<E>,()> { Err(()) } fn into_child_mut<'a>(self: Box<Self>, _: usize) -> Result<ResolvableMut<'a,E>,()> where Self: 'a { Err(()) } impl_traitcast_mut!( dyn AtomStateMut<E,LocalGlyphCache<E>> => |s| &mut s.glyph_cache; dyn ValidationMut<E> => |s| &mut s.text; dyn CaptionMut<E> => |s| &mut s.text; ); } impl<'w,E,Text,GlyphCache> Label<'w,E,Text,GlyphCache> where E: Env, ERenderer<E>: RenderStdWidgets<E>, EEvent<E>: StdVarSup<E>, Text: Caption<E>+Validation<E>+'w, GlyphCache: AtomState<E,LocalGlyphCache<E>>+Clone, { fn glyphs(&self, mut l: Link<E>) -> Arc<ESGlyphs<E>> { if let Some((v,c)) = self.glyph_cache.get(l.ctx) { if self.text.valid(&c) { return v; } } let text = self.text.caption(); let glyphs = Arc::new(ESGlyphs::<E>::generate(text.as_ref(),(20.0,20.0),l.ctx)); let g = glyphs.refc(); l.mutate_closure(Box::new(move |mut w,ctx,_| { let vali = w.traitcast_mut::<dyn ValidationMut<E>>().unwrap(); let key = vali.validate(); let cache = w.traitcast_mut::<dyn AtomStateMut<E,LocalGlyphCache<E>>>().unwrap(); cache.set( Some((g,key)) ,ctx); })); glyphs } }