2015-05-15 19:16:58 +00:00
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//! Defines various views to use when creating the layout.
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2015-05-19 22:54:11 +00:00
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#[macro_use] mod view_wrapper;
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2015-06-08 03:58:10 +00:00
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2015-05-16 00:56:38 +00:00
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mod box_view;
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2015-05-19 02:41:35 +00:00
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mod button;
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2015-06-08 03:58:10 +00:00
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mod dialog;
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mod edit_view;
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2015-05-22 23:28:05 +00:00
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mod full_view;
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2015-05-23 17:33:29 +00:00
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mod id_view;
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2015-06-08 03:58:10 +00:00
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mod key_event_view;
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mod linear_layout;
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mod request;
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2015-05-23 22:58:06 +00:00
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mod shadow_view;
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2015-06-08 03:58:10 +00:00
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mod scroll;
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2015-05-31 04:32:24 +00:00
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mod select_view;
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2015-06-08 03:58:10 +00:00
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mod sized_view;
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mod stack_view;
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mod text_view;
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mod view_path;
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2015-05-16 00:56:38 +00:00
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2015-05-31 23:38:53 +00:00
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2015-05-16 00:56:38 +00:00
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use std::any::Any;
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2015-05-09 19:18:25 +00:00
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2015-06-08 03:58:10 +00:00
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use event::{Event,EventResult};
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use vec::Vec2;
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use printer::Printer;
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pub use self::request::{DimensionRequest,SizeRequest};
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pub use self::scroll::ScrollBase;
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2015-07-28 13:57:52 +00:00
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pub use self::id_view::IdView;
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2015-05-16 00:56:38 +00:00
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pub use self::box_view::BoxView;
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2015-05-19 02:41:35 +00:00
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pub use self::button::Button;
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2015-06-08 03:58:10 +00:00
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pub use self::dialog::Dialog;
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pub use self::edit_view::EditView;
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2015-05-22 23:28:05 +00:00
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pub use self::full_view::FullView;
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2015-06-08 03:58:10 +00:00
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pub use self::key_event_view::KeyEventView;
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pub use self::linear_layout::LinearLayout;
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pub use self::view_path::ViewPath;
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2015-05-31 04:32:24 +00:00
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pub use self::select_view::SelectView;
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2015-06-08 03:58:10 +00:00
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pub use self::shadow_view::ShadowView;
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pub use self::stack_view::StackView;
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pub use self::text_view::TextView;
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pub use self::sized_view::SizedView;
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pub use self::view_wrapper::ViewWrapper;
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2015-05-09 19:18:25 +00:00
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2015-05-23 17:33:29 +00:00
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/// Main trait defining a view behaviour.
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pub trait View {
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/// Called when a key was pressed. Default implementation just ignores it.
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2015-05-28 01:04:33 +00:00
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fn on_event(&mut self, Event) -> EventResult { EventResult::Ignored }
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2015-05-23 17:33:29 +00:00
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/// Returns the minimum size the view requires under the given restrictions.
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fn get_min_size(&self, SizeRequest) -> Vec2 { Vec2::new(1,1) }
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/// Called once the size for this view has been decided, so it can
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/// propagate the information to its children.
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fn layout(&mut self, Vec2) { }
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/// Draws the view with the given printer (includes bounds) and focus.
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2015-05-31 04:05:34 +00:00
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fn draw(&mut self, printer: &Printer);
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2015-05-23 17:33:29 +00:00
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/// Finds the view pointed to by the given path.
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/// Returns None if the path doesn't lead to a view.
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fn find(&mut self, &Selector) -> Option<&mut Any> { None }
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/// This view is offered focus. Will it take it?
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fn take_focus(&mut self) -> bool { false }
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}
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/// Selects a single view (if any) in the tree.
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pub enum Selector<'a> {
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2015-06-08 22:38:10 +00:00
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/// Selects a view from its ID
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2015-05-23 17:33:29 +00:00
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Id(&'a str),
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2015-06-08 22:38:10 +00:00
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/// Selects a view from its path
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2015-05-23 17:33:29 +00:00
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Path(&'a ViewPath),
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}
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