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Add check if page from cache has correct page_number

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This commit is contained in:
Julian Mutter 2024-12-08 15:09:03 +01:00
parent 59e1852f62
commit 636aa14be3
2 changed files with 62 additions and 35 deletions
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9
src/cache.rs
View File

@ -136,16 +136,18 @@ impl PageCache {
let page_left = self.get_page_or_cache(page_left_number)?;
if let Ok(page_right) = self.get_page_or_cache(page_left_number + 1) {
Ok(Some(CacheResponse::TwoPagesRetrieved {
page_number_left: page_left_number,
page_left,
page_number_right: page_left_number + 1,
page_right,
}))
} else {
Ok(Some(CacheResponse::SinglePageRetrieved { page: page_left }))
Ok(Some(CacheResponse::SinglePageRetrieved { page_number: page_left_number, page: page_left }))
}
}
RetrievePagesCommand::GetCurrentPage { page_number } => {
let page = self.get_page_or_cache(page_number)?;
Ok(Some(CacheResponse::SinglePageRetrieved { page }))
Ok(Some(CacheResponse::SinglePageRetrieved { page_number, page }))
}
},
}
@ -175,10 +177,13 @@ pub enum RetrievePagesCommand {
pub enum CacheResponse {
SinglePageRetrieved {
page_number: PageNumber,
page: Rc<MyPageType>,
},
TwoPagesRetrieved {
page_number_left: PageNumber,
page_left: Rc<MyPageType>,
page_number_right : PageNumber,
page_right: Rc<MyPageType>,
},
PageResolutionUpgraded {

88
src/ui.rs
View File

@ -14,7 +14,7 @@ use gtk::{
use log::debug;
use crate::{
cache::{self, PageNumber, SyncCacheCommandSender},
cache::{self, CacheResponse, PageNumber, SyncCacheCommandSender},
color_mode::{self, ColorMode},
};
use glib::clone;
@ -445,38 +445,7 @@ pub fn load_document(file: impl AsRef<Path>, ui: Rc<RefCell<Ui>>, initial_page_n
let sender = cache::spawn_sync_cache(
document,
color_mode,
clone!(@weak ui => move |cache_response| match cache_response {
cache::CacheResponse::SinglePageRetrieved { page } => {
ui.borrow_mut().image_left.set_paintable(Some(page.as_ref()));
if ui.borrow().document_canvas.as_ref().map(|canvas| canvas.num_pages.unwrap_or(0)).unwrap_or(0) > 1 {
// Make image invisible but keep free space in layout
ui.borrow_mut().image_right.set_opacity(0.0);
} else {
// Make image invisible and center left page in layout
ui.borrow_mut().image_right.set_visible(false);
}
let area_height = ui.borrow().image_container.height();
ui.borrow().document_canvas.as_ref().unwrap().cache_surrounding_pages(area_height);
}
cache::CacheResponse::TwoPagesRetrieved {
page_left,
page_right,
} => {
ui.borrow_mut().image_left.set_paintable(Some(page_left.as_ref()));
ui.borrow_mut().image_right.set_paintable(Some(page_right.as_ref()));
ui.borrow_mut().image_right.set_visible(true);
ui.borrow_mut().image_right.set_opacity(1.0);
let area_height = ui.borrow().image_container.height();
ui.borrow().document_canvas.as_ref().unwrap().cache_surrounding_pages(area_height);
},
cache::CacheResponse::PageResolutionUpgraded { page_number, page } => {
if ui.borrow().document_canvas.as_ref().unwrap().is_left_page(page_number){
ui.borrow_mut().image_left.set_paintable(Some(page.as_ref()));
} else if ui.borrow().document_canvas.as_ref().unwrap().is_right_page(page_number){
ui.borrow_mut().image_right.set_paintable(Some(page.as_ref()));
}
}
}),
clone!(@weak ui => move |cache_response| handle_cache_response(ui, cache_response)),
);
let mut document_canvas = DocumentCanvas::new(path, sender);
@ -489,3 +458,56 @@ pub fn load_document(file: impl AsRef<Path>, ui: Rc<RefCell<Ui>>, initial_page_n
update_page_status(&ui.borrow());
debug!("finished loading document");
}
fn handle_cache_response(ui: Rc<RefCell<Ui>>, cache_response: CacheResponse) {
if let Some(canvas) = ui.borrow().document_canvas.as_ref() {
let image_left = &ui.borrow().image_left;
let image_right = &ui.borrow().image_right;
let area_height = ui.borrow().image_container.height();
match cache_response {
cache::CacheResponse::SinglePageRetrieved { page_number, page } => {
if !canvas.is_left_page(page_number) {
debug!("Retrieved page with non up-to-date page_number from cache, ignoring.");
return;
}
image_left.set_paintable(Some(page.as_ref()));
if canvas.num_pages.unwrap_or(0) > 1 {
// Make image invisible but keep free space in layout
image_right.set_opacity(0.0);
} else {
// Make image invisible and center left page in layout
image_right.set_visible(false);
}
canvas.cache_surrounding_pages(area_height);
}
cache::CacheResponse::TwoPagesRetrieved {
page_number_left,
page_left,
page_number_right,
page_right,
} => {
if !canvas.is_left_page(page_number_left)
|| !canvas.is_right_page(page_number_right)
{
debug!("Retrieved pages with non up-to-date page_number from cache, ignoring.");
return;
}
image_left.set_paintable(Some(page_left.as_ref()));
image_right.set_paintable(Some(page_right.as_ref()));
image_right.set_visible(true);
image_right.set_opacity(1.0);
canvas.cache_surrounding_pages(area_height);
}
cache::CacheResponse::PageResolutionUpgraded { page_number, page } => {
if canvas.is_left_page(page_number) {
image_left.set_paintable(Some(page.as_ref()));
} else if canvas.is_right_page(page_number) {
image_right.set_paintable(Some(page.as_ref()));
}
}
}
}
}