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| author |  Héctor Ramón Jiménez <hector0193@gmail.com> | 2021-02-23 03:09:16 +0100 |
|---|---|---|
| committer | Héctor Ramón Jiménez <hector0193@gmail.com> | 2021-02-23 03:09:16 +0100 |
| commit | 81c75c15249b608dd8a6d47e25f96feb10ca68da (patch) | |
| tree | cd069025bcda644c2cc5d00750981c927f15950f /graphics | |
| parent | a19f89d3a6af2804f2ac4e30f6d639b56a9bebfd (diff) | |
| download | iced-81c75c15249b608dd8a6d47e25f96feb10ca68da.tar.gz iced-81c75c15249b608dd8a6d47e25f96feb10ca68da.tar.bz2 iced-81c75c15249b608dd8a6d47e25f96feb10ca68da.zip | |
Change `Tooltip` to support `Text` only for now
Diffstat (limited to 'graphics')
| -rw-r--r-- | graphics/src/widget/tooltip.rs | 76 |
1 files changed, 71 insertions, 5 deletions
diff --git a/graphics/src/widget/tooltip.rs b/graphics/src/widget/tooltip.rs index b5b0c558..0b4d1d2f 100644 --- a/graphics/src/widget/tooltip.rs +++ b/graphics/src/widget/tooltip.rs @@ -1,7 +1,10 @@ //! Decorate content and apply alignment. +use crate::backend::{self, Backend}; use crate::defaults::Defaults; -use crate::{Backend, Renderer}; -use iced_native::{Element, Layout, Point, Rectangle}; +use crate::{Primitive, Renderer, Vector}; + +use iced_native::layout::{self, Layout}; +use iced_native::{Element, Point, Rectangle, Size, Text}; /// An element decorating some content. /// @@ -10,9 +13,11 @@ use iced_native::{Element, Layout, Point, Rectangle}; pub type Tooltip<'a, Message, Backend> = iced_native::Tooltip<'a, Message, Renderer<Backend>>; +pub use iced_native::tooltip::Position; + impl<B> iced_native::tooltip::Renderer for Renderer<B> where - B: Backend, + B: Backend + backend::Text, { type Style = (); @@ -20,10 +25,14 @@ where &mut self, defaults: &Defaults, cursor_position: Point, - content: &Element<'_, Message, Self>, content_layout: Layout<'_>, viewport: &Rectangle, + content: &Element<'_, Message, Self>, + tooltip: &Text<Self>, + position: Position, ) -> Self::Output { + let bounds = content_layout.bounds(); + let (content, mouse_interaction) = content.draw( self, &defaults, @@ -32,6 +41,63 @@ where viewport, ); - (content, mouse_interaction) + if bounds.contains(cursor_position) { + use iced_native::Widget; + + let tooltip_layout = Widget::<(), Self>::layout( + tooltip, + self, + &layout::Limits::new(Size::ZERO, viewport.size()), + ); + + let tooltip_bounds = tooltip_layout.bounds(); + + let x_center = + bounds.x + (bounds.width - tooltip_bounds.width) / 2.0; + + let y_center = + bounds.y + (bounds.height - tooltip_bounds.height) / 2.0; + + let offset = match position { + Position::Top => { + Vector::new(x_center, bounds.y - tooltip_bounds.height) + } + Position::Bottom => { + Vector::new(x_center, bounds.y + bounds.height) + } + Position::Left => { + Vector::new(bounds.x - tooltip_bounds.width, y_center) + } + Position::Right => { + Vector::new(bounds.x + bounds.width, y_center) + } + Position::FollowCursor => Vector::new( + cursor_position.x, + cursor_position.y - tooltip_bounds.height, + ), + }; + + let (tooltip, _) = Widget::<(), Self>::draw( + tooltip, + self, + defaults, + Layout::with_offset(offset, &tooltip_layout), + cursor_position, + viewport, + ); + + ( + Primitive::Clip { + bounds: *viewport, + offset: Vector::new(0, 0), + content: Box::new(Primitive::Group { + primitives: vec![content, tooltip], + }), + }, + mouse_interaction, + ) + } else { + (content, mouse_interaction) + } } } |