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Add separate serialize feature and better persitence control (#753)

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* Rename epaint feature "persistence" to "serialize"

* Add separate "serialize" feature to egui

* egui_demo_lib: separate serialize and persistence features

* Add App::persist_native_window and App::persist_egui_memory

Controls what gets persisted
This commit is contained in:
Emil Ernerfeldt
2021-09-29 08:45:13 +02:00
committed by GitHub
parent f2dd3dfdd9
commit 5539dbe620
58 changed files with 226 additions and 194 deletions
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16
epi/src/lib.rs
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@@ -94,7 +94,7 @@ pub trait App {
/// Allows you to do setup code, e.g to call `[egui::Context::set_fonts]`,
/// `[egui::Context::set_visuals]` etc.
///
/// Also allows you to restore state, if there is a storage.
/// Also allows you to restore state, if there is a storage (required the "persistence" feature).
fn setup(
&mut self,
_ctx: &egui::CtxRef,
@@ -113,6 +113,8 @@ pub trait App {
/// Called on shutdown, and perhaps at regular intervals. Allows you to save state.
///
/// Only called when the "persistence" feature is enabled.
///
/// On web the states is stored to "Local Storage".
/// On native the path is picked using [`directories_next::ProjectDirs::data_dir`](https://docs.rs/directories-next/2.0.0/directories_next/struct.ProjectDirs.html#method.data_dir) which is:
/// * Linux: `/home/UserName/.local/share/APPNAME`
@@ -150,6 +152,18 @@ pub trait App {
// `transparent()` option they get immediate results.
egui::Color32::from_rgba_unmultiplied(12, 12, 12, 180).into()
}
/// Controls wether or not the native window position and size will be
/// persisted (only if the "persistence" feature is enabled).
fn persist_native_window(&self) -> bool {
true
}
/// Controls wether or not the egui memory (window positions etc) will be
/// persisted (only if the "persistence" feature is enabled).
fn persist_egui_memory(&self) -> bool {
true
}
}
/// Options controlling the behavior of a native window