leyoda/cosmic-workspaces
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Apply both offset and alpha to drag surfaces

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This commit is contained in:
Ian Douglas Scott 2024-06-12 09:40:13 -07:00
parent 5e6c6054a9
commit 594ecffa66
2 changed files with 19 additions and 11 deletions
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8
src/main.rs
View file

@ -490,7 +490,7 @@ impl Application for App {
// TODO confirmation?
self.send_wayland_cmd(backend::Cmd::CloseToplevel(toplevel_handle));
}
Msg::StartDrag(size, _offset, drag_surface) => {
Msg::StartDrag(size, offset, drag_surface) => {
let (output, mime_type) = match &drag_surface {
DragSurface::Workspace { handle: _, output } => (output, &*WORKSPACE_MIME),
DragSurface::Toplevel { handle: _, output } => (output, &*TOPLEVEL_MIME),
@ -506,9 +506,7 @@ impl Application for App {
vec![mime_type.to_string()],
DndAction::Move,
*parent_id,
Some((DndIcon::Custom(id), iced::Vector::ZERO)),
// Applying offset doesn't seem quite right without transparency?
// Some((DndIcon::Custom(id), offset * -1.0)),
Some((DndIcon::Custom(id), offset * -1.0)),
Box::new(WlDndId { mime_type }),
);
}
@ -676,7 +674,7 @@ impl Application for App {
DragSurface::Toplevel { handle, .. } => {
if let Some(toplevel) = self.toplevels.iter().find(|x| &x.handle == handle)
{
let item = view::toplevel_preview(toplevel);
let item = view::toplevel_preview(toplevel, true);
return widget::container(item)
.height(iced::Length::Fixed(size.height))
.width(iced::Length::Fixed(size.width))

22
src/view/mod.rs
View file

@ -117,7 +117,7 @@ pub(crate) fn workspace_item<'a>(
output: &wl_output::WlOutput,
is_drop_target: bool,
) -> cosmic::Element<'a, Msg> {
let image = capture_image(workspace.img_for_output.get(output));
let image = capture_image(workspace.img_for_output.get(output), 1.0);
let is_active = workspace.is_active;
column![
// TODO editable name?
@ -255,7 +255,10 @@ fn workspaces_sidebar<'a>(
.into()
}
pub(crate) fn toplevel_preview(toplevel: &Toplevel) -> cosmic::Element<Msg> {
pub(crate) fn toplevel_preview(
toplevel: &Toplevel,
is_being_dragged: bool,
) -> cosmic::Element<Msg> {
let label = widget::text(&toplevel.info.title);
let label = if let Some(icon) = &toplevel.icon {
row![widget::icon(widget::icon::from_path(icon.clone())), label].spacing(4)
@ -263,10 +266,11 @@ pub(crate) fn toplevel_preview(toplevel: &Toplevel) -> cosmic::Element<Msg> {
row![label]
}
.padding(4);
let alpha = if is_being_dragged { 0.5 } else { 1.0 };
crate::widgets::toplevel_item(
vec![
close_button(Msg::CloseToplevel(toplevel.handle.clone())),
widget::button(capture_image(toplevel.img.as_ref()))
widget::button(capture_image(toplevel.img.as_ref(), alpha))
.selected(
toplevel
.info
@ -295,7 +299,10 @@ fn toplevel_previews_entry<'a>(
) -> cosmic::Element<'a, Msg> {
// Dragged window still takes up space until moved, but isn't rendered while drag surface is
// shown.
let preview = crate::widgets::visibility_wrapper(toplevel_preview(toplevel), !is_being_dragged);
let preview = crate::widgets::visibility_wrapper(
toplevel_preview(toplevel, is_being_dragged),
!is_being_dragged,
);
iced::widget::dnd_source(preview)
.on_drag(|size, offset| {
Msg::StartDrag(
@ -401,15 +408,18 @@ fn bg_element<'a>(
}
}
fn capture_image(image: Option<&CaptureImage>) -> cosmic::Element<'_, Msg> {
fn capture_image(image: Option<&CaptureImage>, alpha: f32) -> cosmic::Element<'_, Msg> {
if let Some(image) = image {
#[cfg(feature = "no-subsurfaces")]
{
// TODO alpha
widget::Image::new(image.image.clone()).into()
}
#[cfg(not(feature = "no-subsurfaces"))]
{
Subsurface::new(image.width, image.height, &image.wl_buffer).into()
Subsurface::new(image.width, image.height, &image.wl_buffer)
.alpha(alpha)
.into()
}
} else {
widget::Image::new(widget::image::Handle::from_pixels(1, 1, vec![0, 0, 0, 255])).into()