diff options
Diffstat (limited to 'pure/src/widget/element.rs')
-rw-r--r-- | pure/src/widget/element.rs | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/pure/src/widget/element.rs b/pure/src/widget/element.rs deleted file mode 100644 index 3d5697fe..00000000 --- a/pure/src/widget/element.rs +++ /dev/null @@ -1,163 +0,0 @@ -use crate::widget::tree::{self, Tree}; -use crate::widget::Widget; - -use iced_native::event::{self, Event}; -use iced_native::layout::{self, Layout}; -use iced_native::mouse; -use iced_native::renderer; -use iced_native::{Clipboard, Length, Point, Rectangle, Shell}; - -pub struct Element<'a, Message, Renderer> { - widget: Box<dyn Widget<Message, Renderer> + 'a>, -} - -impl<'a, Message, Renderer> Element<'a, Message, Renderer> { - pub fn new(widget: impl Widget<Message, Renderer> + 'a) -> Self { - Self { - widget: Box::new(widget), - } - } - - pub fn as_widget(&self) -> &dyn Widget<Message, Renderer> { - self.widget.as_ref() - } - - pub fn as_widget_mut(&mut self) -> &mut dyn Widget<Message, Renderer> { - self.widget.as_mut() - } - - pub fn map<B>( - self, - f: impl Fn(Message) -> B + 'a, - ) -> Element<'a, B, Renderer> - where - Message: 'a, - Renderer: iced_native::Renderer + 'a, - B: 'a, - { - Element::new(Map::new(self.widget, f)) - } -} - -struct Map<'a, A, B, Renderer> { - widget: Box<dyn Widget<A, Renderer> + 'a>, - mapper: Box<dyn Fn(A) -> B + 'a>, -} - -impl<'a, A, B, Renderer> Map<'a, A, B, Renderer> { - pub fn new<F>( - widget: Box<dyn Widget<A, Renderer> + 'a>, - mapper: F, - ) -> Map<'a, A, B, Renderer> - where - F: 'a + Fn(A) -> B, - { - Map { - widget, - mapper: Box::new(mapper), - } - } -} - -impl<'a, A, B, Renderer> Widget<B, Renderer> for Map<'a, A, B, Renderer> -where - Renderer: iced_native::Renderer + 'a, - A: 'a, - B: 'a, -{ - fn tag(&self) -> tree::Tag { - self.widget.tag() - } - - fn state(&self) -> tree::State { - self.widget.state() - } - - fn children(&self) -> Vec<Tree> { - self.widget.children() - } - - fn diff(&self, tree: &mut Tree) { - self.widget.diff(tree) - } - - fn width(&self) -> Length { - self.widget.width() - } - - fn height(&self) -> Length { - self.widget.height() - } - - fn layout( - &self, - renderer: &Renderer, - limits: &layout::Limits, - ) -> layout::Node { - self.widget.layout(renderer, limits) - } - - fn on_event( - &mut self, - tree: &mut Tree, - event: Event, - layout: Layout<'_>, - cursor_position: Point, - renderer: &Renderer, - clipboard: &mut dyn Clipboard, - shell: &mut Shell<'_, B>, - ) -> event::Status { - let mut local_messages = Vec::new(); - let mut local_shell = Shell::new(&mut local_messages); - - let status = self.widget.on_event( - tree, - event, - layout, - cursor_position, - renderer, - clipboard, - &mut local_shell, - ); - - shell.merge(local_shell, &self.mapper); - - status - } - - fn draw( - &self, - tree: &Tree, - renderer: &mut Renderer, - style: &renderer::Style, - layout: Layout<'_>, - cursor_position: Point, - viewport: &Rectangle, - ) { - self.widget.draw( - tree, - renderer, - style, - layout, - cursor_position, - viewport, - ) - } - - fn mouse_interaction( - &self, - tree: &Tree, - layout: Layout<'_>, - cursor_position: Point, - viewport: &Rectangle, - renderer: &Renderer, - ) -> mouse::Interaction { - self.widget.mouse_interaction( - tree, - layout, - cursor_position, - viewport, - renderer, - ) - } -} |