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use crate::{ border::BorderBuilder, brush::Brush, canvas::CanvasBuilder, core::{algebra::Vector2, color::Color, pool::Handle}, message::{ MessageData, MessageDirection, ProgressBarMessage, UiMessage, UiMessageData, WidgetMessage, }, node::UINode, widget::{Widget, WidgetBuilder}, BuildContext, Control, NodeHandleMapping, UserInterface, }; use std::ops::{Deref, DerefMut}; #[derive(Clone)] pub struct ProgressBar<M: MessageData, C: Control<M, C>> { widget: Widget<M, C>, progress: f32, indicator: Handle<UINode<M, C>>, body: Handle<UINode<M, C>>, } crate::define_widget_deref!(ProgressBar<M, C>); impl<M: MessageData, C: Control<M, C>> Control<M, C> for ProgressBar<M, C> { fn resolve(&mut self, node_map: &NodeHandleMapping<M, C>) { node_map.resolve(&mut self.indicator); node_map.resolve(&mut self.body); } fn arrange_override(&self, ui: &UserInterface<M, C>, final_size: Vector2<f32>) -> Vector2<f32> { let size = self.widget.arrange_override(ui, final_size); ui.send_message(WidgetMessage::width( self.indicator, MessageDirection::ToWidget, size.x * self.progress, )); ui.send_message(WidgetMessage::height( self.indicator, MessageDirection::ToWidget, size.y, )); size } fn handle_routed_message( &mut self, ui: &mut UserInterface<M, C>, message: &mut UiMessage<M, C>, ) { self.widget.handle_routed_message(ui, message); if message.destination() == self.handle { if let UiMessageData::ProgressBar(msg) = &message.data() { match *msg { ProgressBarMessage::Progress(progress) => { if progress != self.progress { self.set_progress(progress); self.invalidate_layout(); } } } } } } } impl<M: MessageData, C: Control<M, C>> ProgressBar<M, C> { pub fn set_progress(&mut self, progress: f32) { self.progress = progress.min(1.0).max(0.0); } pub fn progress(&self) -> f32 { self.progress } } pub struct ProgressBarBuilder<M: MessageData, C: Control<M, C>> { widget_builder: WidgetBuilder<M, C>, body: Option<Handle<UINode<M, C>>>, indicator: Option<Handle<UINode<M, C>>>, progress: f32, } impl<M: MessageData, C: Control<M, C>> ProgressBarBuilder<M, C> { pub fn new(widget_builder: WidgetBuilder<M, C>) -> Self { Self { widget_builder, body: None, indicator: None, progress: 0.0, } } pub fn with_body(mut self, body: Handle<UINode<M, C>>) -> Self { self.body = Some(body); self } pub fn with_indicator(mut self, indicator: Handle<UINode<M, C>>) -> Self { self.indicator = Some(indicator); self } pub fn with_progress(mut self, progress: f32) -> Self { self.progress = progress.min(1.0).max(0.0); self } pub fn build(self, ctx: &mut BuildContext<M, C>) -> Handle<UINode<M, C>> { let body = self .body .unwrap_or_else(|| BorderBuilder::new(WidgetBuilder::new()).build(ctx)); let indicator = self.indicator.unwrap_or_else(|| { BorderBuilder::new( WidgetBuilder::new().with_background(Brush::Solid(Color::opaque(180, 180, 180))), ) .build(ctx) }); let canvas = CanvasBuilder::new(WidgetBuilder::new().with_child(indicator)).build(ctx); ctx.link(canvas, body); let progress_bar = ProgressBar { widget: self.widget_builder.with_child(body).build(), progress: self.progress, indicator, body, }; ctx.add_node(UINode::ProgressBar(progress_bar)) } }