From 05af8d00d4c0f7b8e0ece85224fd90a92da86da8 Mon Sep 17 00:00:00 2001 From: Héctor Ramón Jiménez Date: Tue, 19 May 2020 17:15:44 +0200 Subject: Draft new `iced_graphics` crate :tada: --- graphics/src/widget/pane_grid.rs | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 graphics/src/widget/pane_grid.rs (limited to 'graphics/src/widget/pane_grid.rs') diff --git a/graphics/src/widget/pane_grid.rs b/graphics/src/widget/pane_grid.rs new file mode 100644 index 00000000..34be8ee7 --- /dev/null +++ b/graphics/src/widget/pane_grid.rs @@ -0,0 +1,25 @@ +//! Let your users split regions of your application and organize layout dynamically. +//! +//! [![Pane grid - Iced](https://thumbs.gfycat.com/MixedFlatJellyfish-small.gif)](https://gfycat.com/mixedflatjellyfish) +//! +//! # Example +//! The [`pane_grid` example] showcases how to use a [`PaneGrid`] with resizing, +//! drag and drop, and hotkey support. +//! +//! [`pane_grid` example]: https://github.com/hecrj/iced/tree/0.1/examples/pane_grid +//! [`PaneGrid`]: type.PaneGrid.html +use crate::Renderer; + +pub use iced_native::pane_grid::{ + Axis, Direction, DragEvent, Focus, KeyPressEvent, Pane, ResizeEvent, Split, + State, +}; + +/// A collection of panes distributed using either vertical or horizontal splits +/// to completely fill the space available. +/// +/// [![Pane grid - Iced](https://thumbs.gfycat.com/MixedFlatJellyfish-small.gif)](https://gfycat.com/mixedflatjellyfish) +/// +/// This is an alias of an `iced_native` pane grid with an `iced_wgpu::Renderer`. +pub type PaneGrid<'a, Message, Backend> = + iced_native::PaneGrid<'a, Message, Renderer>; -- cgit From e6180912488db4d59fbffcb46c5930282306cb92 Mon Sep 17 00:00:00 2001 From: Héctor Ramón Jiménez Date: Tue, 19 May 2020 21:00:40 +0200 Subject: Merge unnecessary split widget modules --- graphics/src/widget/pane_grid.rs | 95 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 94 insertions(+), 1 deletion(-) (limited to 'graphics/src/widget/pane_grid.rs') diff --git a/graphics/src/widget/pane_grid.rs b/graphics/src/widget/pane_grid.rs index 34be8ee7..56af683d 100644 --- a/graphics/src/widget/pane_grid.rs +++ b/graphics/src/widget/pane_grid.rs @@ -8,7 +8,10 @@ //! //! [`pane_grid` example]: https://github.com/hecrj/iced/tree/0.1/examples/pane_grid //! [`PaneGrid`]: type.PaneGrid.html -use crate::Renderer; +use crate::{Backend, Primitive, Renderer}; +use iced_native::mouse; +use iced_native::pane_grid; +use iced_native::{Element, Layout, Point, Rectangle, Vector}; pub use iced_native::pane_grid::{ Axis, Direction, DragEvent, Focus, KeyPressEvent, Pane, ResizeEvent, Split, @@ -23,3 +26,93 @@ pub use iced_native::pane_grid::{ /// This is an alias of an `iced_native` pane grid with an `iced_wgpu::Renderer`. pub type PaneGrid<'a, Message, Backend> = iced_native::PaneGrid<'a, Message, Renderer>; + +impl pane_grid::Renderer for Renderer +where + B: Backend, +{ + fn draw( + &mut self, + defaults: &Self::Defaults, + content: &[(Pane, Element<'_, Message, Self>)], + dragging: Option, + resizing: Option, + layout: Layout<'_>, + cursor_position: Point, + ) -> Self::Output { + let pane_cursor_position = if dragging.is_some() { + // TODO: Remove once cursor availability is encoded in the type + // system + Point::new(-1.0, -1.0) + } else { + cursor_position + }; + + let mut mouse_interaction = mouse::Interaction::default(); + let mut dragged_pane = None; + + let mut panes: Vec<_> = content + .iter() + .zip(layout.children()) + .enumerate() + .map(|(i, ((id, pane), layout))| { + let (primitive, new_mouse_interaction) = + pane.draw(self, defaults, layout, pane_cursor_position); + + if new_mouse_interaction > mouse_interaction { + mouse_interaction = new_mouse_interaction; + } + + if Some(*id) == dragging { + dragged_pane = Some((i, layout)); + } + + primitive + }) + .collect(); + + let primitives = if let Some((index, layout)) = dragged_pane { + let pane = panes.remove(index); + let bounds = layout.bounds(); + + // TODO: Fix once proper layering is implemented. + // This is a pretty hacky way to achieve layering. + let clip = Primitive::Clip { + bounds: Rectangle { + x: cursor_position.x - bounds.width / 2.0, + y: cursor_position.y - bounds.height / 2.0, + width: bounds.width + 0.5, + height: bounds.height + 0.5, + }, + offset: Vector::new(0, 0), + content: Box::new(Primitive::Translate { + translation: Vector::new( + cursor_position.x - bounds.x - bounds.width / 2.0, + cursor_position.y - bounds.y - bounds.height / 2.0, + ), + content: Box::new(pane), + }), + }; + + panes.push(clip); + + panes + } else { + panes + }; + + ( + Primitive::Group { primitives }, + if dragging.is_some() { + mouse::Interaction::Grabbing + } else if let Some(axis) = resizing { + match axis { + Axis::Horizontal => mouse::Interaction::ResizingVertically, + Axis::Vertical => mouse::Interaction::ResizingHorizontally, + } + } else { + mouse_interaction + }, + ) + } +} -- cgit