diff options
Diffstat (limited to 'graphics/src/widget/canvas/program.rs')
| -rw-r--r-- | graphics/src/widget/canvas/program.rs | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/graphics/src/widget/canvas/program.rs b/graphics/src/widget/canvas/program.rs index 85a2f67b..dddc387d 100644 --- a/graphics/src/widget/canvas/program.rs +++ b/graphics/src/widget/canvas/program.rs @@ -1,6 +1,8 @@ use crate::canvas::event::{self, Event}; use crate::canvas::{Cursor, Geometry}; -use iced_native::{mouse, Rectangle}; + +use iced_native::mouse; +use iced_native::Rectangle; /// The state and logic of a [`Canvas`]. /// @@ -8,7 +10,7 @@ use iced_native::{mouse, Rectangle}; /// application. /// /// [`Canvas`]: crate::widget::Canvas -pub trait Program<Message> { +pub trait Program<Message, Theme = iced_native::Theme> { /// Updates the state of the [`Program`]. /// /// When a [`Program`] is used in a [`Canvas`], the runtime will call this @@ -36,7 +38,12 @@ pub trait Program<Message> { /// /// [`Frame`]: crate::widget::canvas::Frame /// [`Cache`]: crate::widget::canvas::Cache - fn draw(&self, bounds: Rectangle, cursor: Cursor) -> Vec<Geometry>; + fn draw( + &self, + theme: &Theme, + bounds: Rectangle, + cursor: Cursor, + ) -> Vec<Geometry>; /// Returns the current mouse interaction of the [`Program`]. /// @@ -53,9 +60,9 @@ pub trait Program<Message> { } } -impl<T, Message> Program<Message> for &mut T +impl<T, Message, Theme> Program<Message, Theme> for &mut T where - T: Program<Message>, + T: Program<Message, Theme>, { fn update( &mut self, @@ -66,8 +73,13 @@ where T::update(self, event, bounds, cursor) } - fn draw(&self, bounds: Rectangle, cursor: Cursor) -> Vec<Geometry> { - T::draw(self, bounds, cursor) + fn draw( + &self, + theme: &Theme, + bounds: Rectangle, + cursor: Cursor, + ) -> Vec<Geometry> { + T::draw(self, theme, bounds, cursor) } fn mouse_interaction( |