Repository: weclaw1/image-roll Branch: main Commit: 50870799d10c Files: 29 Total size: 224.8 KB Directory structure: gitextract_s858hyto/ ├── .github/ │ └── workflows/ │ └── ci.yml ├── .gitignore ├── Cargo.toml ├── LICENSE ├── README.md ├── build.rs ├── debian/ │ └── postinst └── src/ ├── app.rs ├── file_list.rs ├── image.rs ├── image_list.rs ├── image_operation.rs ├── main.rs ├── resources/ │ ├── cargo-sources.json │ ├── com.github.weclaw1.ImageRoll.desktop │ ├── com.github.weclaw1.ImageRoll.gschema.xml │ ├── com.github.weclaw1.ImageRoll.metainfo.xml │ ├── com.github.weclaw1.ImageRoll.yaml │ ├── image-roll.cmb │ ├── image-roll.ui │ ├── resources.gresource │ └── resources.xml ├── settings.rs ├── test_utils.rs ├── ui/ │ ├── action.rs │ ├── controllers.rs │ ├── event.rs │ └── widgets.rs └── ui.rs ================================================ FILE CONTENTS ================================================ ================================================ FILE: .github/workflows/ci.yml ================================================ on: [push, pull_request] name: Continuous integration jobs: check: name: Check runs-on: ubuntu-22.04 steps: - name: Checkout sources uses: actions/checkout@v2 - name: Install stable toolchain uses: actions-rs/toolchain@v1 with: profile: minimal toolchain: stable override: true - name: Install dependencies run: | sudo apt update sudo apt install -y libgtk-4-dev - name: Set up cache uses: actions/cache@v2 with: path: | ~/.cargo/registry ~/.cargo/git target key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }} - name: Run cargo check uses: actions-rs/cargo@v1 with: command: check test: name: Test Suite runs-on: ubuntu-22.04 steps: - name: Checkout sources uses: actions/checkout@v2 - name: Install stable toolchain uses: actions-rs/toolchain@v1 with: profile: minimal toolchain: stable override: true - name: Install dependencies run: | sudo apt update sudo apt install -y libgtk-4-dev - name: Set up cache uses: actions/cache@v2 with: path: | ~/.cargo/registry ~/.cargo/git target key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }} - name: Run cargo test uses: actions-rs/cargo@v1 with: command: test lints: name: Lints runs-on: ubuntu-22.04 steps: - name: Checkout sources uses: actions/checkout@v2 - name: Install stable toolchain uses: actions-rs/toolchain@v1 with: profile: minimal toolchain: stable override: true components: rustfmt, clippy - name: Run cargo fmt uses: actions-rs/cargo@v1 with: command: fmt args: --all -- --check - name: Install dependencies run: | sudo apt update sudo apt install -y libgtk-4-dev - name: Set up cache uses: actions/cache@v2 with: path: | ~/.cargo/registry ~/.cargo/git target key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }} - name: Run cargo clippy uses: actions-rs/cargo@v1 with: command: clippy args: -- -D warnings build: name: Build needs: [check, test] runs-on: ubuntu-22.04 steps: - name: Checkout sources uses: actions/checkout@v2 - name: Install stable toolchain uses: actions-rs/toolchain@v1 with: profile: minimal toolchain: stable override: true - name: Install dependencies run: | sudo apt update sudo apt install -y libgtk-4-dev - name: Set up cache uses: actions/cache@v2 with: path: | ~/.cargo/registry ~/.cargo/git target key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }} - name: Run cargo build uses: actions-rs/cargo@v1 with: command: build args: --release - name: Upload Artifact uses: actions/upload-artifact@v2 with: name: image-roll path: target/release/image-roll - name: Create debian package run: | cargo install cargo-deb cargo deb - name: Upload debian Artifact uses: actions/upload-artifact@v2 with: name: image-roll-deb path: target/debian/image-roll*.deb ================================================ FILE: .gitignore ================================================ /target /build-dir src/resources/image-roll_ui.glade~ /.flatpak-builder ================================================ FILE: Cargo.toml ================================================ [package] name = "image-roll" version = "2.1.0" license = "MIT" description = "Image Roll is a simple and fast GTK image viewer with basic image manipulation tools." homepage = "https://github.com/weclaw1/image-roll" repository = "https://github.com/weclaw1/image-roll" readme = "README.md" authors = ["Robert Węcławski "] edition = "2021" [dependencies] log = "0.4.17" env_logger = "0.9.0" anyhow = "1.0.58" ashpd = { version = "0.3.2", optional = true } [dev-dependencies] itertools = "0.10.3" rand = "0.8.5" infer = "0.9.0" [dependencies.gtk] package = "gtk4" version = "0.4.8" features = ["v4_4"] [features] default = ["wallpaper"] wallpaper = ["ashpd"] # set image as wallpaper [package.metadata.deb] license-file = ["LICENSE", "0"] section = "graphics" depends = "$auto" maintainer-scripts = "debian" assets = [ ["target/release/image-roll", "usr/bin/", "755"], ["README.md", "usr/share/doc/image-roll/README", "644"], ["src/resources/com.github.weclaw1.ImageRoll.desktop", "usr/share/applications/", "644"], ["src/resources/com.github.weclaw1.ImageRoll.svg", "usr/share/icons/hicolor/scalable/apps/", "644"], ["src/resources/com.github.weclaw1.ImageRoll.Devel.svg", "usr/share/icons/hicolor/scalable/apps/", "644"], ["src/resources/com.github.weclaw1.ImageRoll-symbolic.svg", "usr/share/icons/hicolor/scalable/apps/", "644"], ["src/resources/com.github.weclaw1.ImageRoll.gschema.xml", "/usr/share/glib-2.0/schemas/", "644"], ] ================================================ FILE: LICENSE ================================================ MIT License Copyright (c) 2021 Robert Węcławski Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ================================================ FILE: README.md ================================================ # Image Roll ![Image Roll](https://raw.githubusercontent.com/weclaw1/image-roll/main/src/resources/com.github.weclaw1.ImageRoll.svg) **Image Roll** is a simple and fast GTK image viewer with basic image manipulation tools. ## Features - Written in Rust - uses modern GTK 4 - adaptive - can be used on desktop and mobile devices - crop image - rotate image - resize image - undo and redo image edits ![Screenshot](https://raw.githubusercontent.com/weclaw1/image-roll/main/src/resources/screenshot.png) ## Installation ### Requirements If you use AUR or Flatpak you may skip this section. For this application you are required to have at least GTK 4.4. #### Ubuntu/Debian ``` sudo apt install libgtk-4-dev ``` #### Fedora/CentOS ``` sudo dnf install gtk4-devel glib2-devel ``` ### Flatpak Flatpak is the recommended install method. In order to install Image Roll using Flatpak run: ``` flatpak install flathub com.github.weclaw1.ImageRoll ``` ### Alpine Linux Alpine Linux provides [image-roll](https://pkgs.alpinelinux.org/packages?name=image-roll) package. ``` apk add image-roll ``` ### AUR If you run Arch Linux, you can use one of the AUR packages. There are 3, `image-roll`, `image-roll-bin`, and `image-roll-git`. Replace `yay` with your AUR helper of choice. ``` yay -S image-roll ``` ### Debian package On the releases page can be found deb packages which can be used on Debian and its derivatives. ### Precompiled binaries Ready-to-go executables can be found on the releases page. ### Cargo To install Image Roll using cargo run the following command: ``` cargo install image-roll ``` ================================================ FILE: build.rs ================================================ use std::{env, process::Command}; fn main() { Command::new("glib-compile-resources") .args(&["src/resources/resources.xml", "--sourcedir=src/resources"]) .status() .unwrap(); let python_installed = Command::new("sh") .args(&["-c", "command -v python3"]) .status() .unwrap() .success(); let pip_installed = Command::new("sh") .args(&["-c", "command -v pip3"]) .status() .unwrap() .success(); let wget_installed = Command::new("sh") .args(&["-c", "command -v wget"]) .status() .unwrap() .success(); if python_installed && pip_installed && wget_installed { Command::new("pip3") .args(&["install", "aiohttp", "toml"]) .status() .unwrap(); Command::new("wget").arg("https://raw.githubusercontent.com/flatpak/flatpak-builder-tools/master/cargo/flatpak-cargo-generator.py").status().unwrap(); Command::new("python3") .args(&[ "flatpak-cargo-generator.py", "Cargo.lock", "-o", "src/resources/cargo-sources.json", ]) .status() .unwrap(); Command::new("rm") .arg("flatpak-cargo-generator.py") .status() .unwrap(); } if Ok("debug".to_owned()) == env::var("PROFILE") { Command::new("sh") .args(&["-c", "mkdir -p $HOME/.local/share/glib-2.0/schemas"]) .status() .unwrap(); Command::new("sh").args(&["-c", "install -D src/resources/com.github.weclaw1.ImageRoll.gschema.xml $HOME/.local/share/glib-2.0/schemas/"]).status().unwrap(); Command::new("sh") .args(&[ "-c", "glib-compile-schemas $HOME/.local/share/glib-2.0/schemas/", ]) .status() .unwrap(); } println!("cargo:rerun-if-changed=src/resources/resources.xml"); println!("cargo:rerun-if-changed=src/resources/image-roll.ui"); println!("cargo:rerun-if-changed=src/resources/icons/crop-symbolic.svg"); println!("cargo:rerun-if-changed=src/resources/com.github.weclaw1.ImageRoll.svg"); println!("cargo:rerun-if-changed=src/resources/com.github.weclaw1.ImageRoll.gschema.xml"); println!("cargo:rerun-if-changed=Cargo.lock"); } ================================================ FILE: debian/postinst ================================================ #!/bin/sh set -e glib-compile-schemas /usr/share/glib-2.0/schemas exit 0 ================================================ FILE: src/app.rs ================================================ use gtk::{ gdk::Display, gio, glib::{self, timeout_future}, prelude::*, Builder, }; use std::{ cell::{Cell, RefCell}, rc::Rc, time::Duration, }; use crate::image_list::ImageList; use crate::settings::Settings; use crate::ui::{ event::{post_event, Event}, widgets::Widgets, }; use crate::{file_list::FileList, ui::controllers::Controllers}; use crate::{ image::CoordinatesPair, ui::{action, event}, }; pub struct App { application: gtk::Application, controllers: Controllers, widgets: Widgets, image_list: Rc>, file_list: FileList, selection_coords: Rc>>, settings: Settings, sender: glib::Sender, } impl App { pub fn create(application: >k::Application, file: Option<&gio::File>) { let bytes = glib::Bytes::from_static(include_bytes!("resources/resources.gresource")); let resources = gio::Resource::from_data(&bytes).expect("Couldn't load resources"); gio::resources_register(&resources); let builder = Builder::from_resource("/com/github/weclaw1/image-roll/image-roll.ui"); let widgets: Widgets = Widgets::init(builder, application); let controllers = Controllers::init(); gtk::IconTheme::for_display(&Display::default().unwrap()) .add_resource_path("/com/github/weclaw1/image-roll/icons/"); let image_list: Rc> = Rc::new(RefCell::new(ImageList::new())); let file_list: FileList = FileList::new(None).unwrap(); let selection_coords: Rc>> = Rc::new(Cell::new(None)); let settings: Settings = Settings::new(application.application_id().unwrap().as_str()); let (window_width, window_height) = settings.window_size(); widgets .window() .set_default_size(window_width as i32, window_height as i32); let (sender, receiver) = glib::MainContext::channel::(glib::PRIORITY_DEFAULT); if let Some(file) = file { let main_context = glib::MainContext::default(); let second_sender = sender.clone(); let file = file.clone(); main_context.spawn_local(async move { timeout_future(Duration::from_millis(10)).await; post_event(&second_sender, Event::OpenFile(file)); }); } let mut app = Self { application: application.clone(), controllers, widgets, image_list, file_list, selection_coords, settings, sender, }; event::connect_events( app.widgets.clone(), app.sender.clone(), app.image_list.clone(), app.selection_coords.clone(), app.settings.clone(), ); event::connect_controllers( app.sender.clone(), app.widgets.clone(), app.controllers.clone(), ); action::update_buttons_state( &app.widgets, &app.file_list, app.image_list.clone(), &app.settings, ); receiver.attach(None, move |e| { app.process_event(e); glib::Continue(true) }); } pub fn process_event(&mut self, event: Event) { match event { Event::OpenFile(file) => action::open_file( &self.sender, self.image_list.clone(), &mut self.file_list, file, ), Event::LoadImage(file_path) => action::load_image( &self.sender, &mut self.settings, &self.widgets, self.image_list.clone(), file_path, ), Event::DisplayMessage(message, message_type) => { action::display_message(&self.widgets, message.as_str(), message_type) } Event::ImageViewportResize(viewport_size) => { action::image_viewport_resize(&self.sender, &mut self.settings, viewport_size) } Event::RefreshPreview(preview_size) => { action::refresh_preview(&self.widgets, self.image_list.clone(), preview_size) } Event::ChangePreviewSize(preview_size) => action::change_preview_size( &self.sender, &self.widgets, &mut self.settings, preview_size, ), Event::ImageEdit(image_operation) => action::image_edit( &self.sender, &self.settings, self.image_list.clone(), &self.file_list, image_operation, ), Event::StartSelection(position) if self.widgets.crop_button().is_active() => { action::start_selection( &self.widgets, self.image_list.clone(), self.selection_coords.clone(), position, ) } Event::DragSelection(position) if self.widgets.crop_button().is_active() => { action::drag_selection( &self.widgets, self.image_list.clone(), self.selection_coords.clone(), position, ) } Event::SaveCurrentImage(filename) => { action::save_current_image(&self.sender, self.image_list.clone(), filename); if self.file_list.current_folder_monitor_mut().is_none() { action::refresh_file_list(&self.sender, &mut self.file_list); } } Event::DeleteCurrentImage => { action::delete_current_image( &self.sender, &mut self.file_list, self.image_list.clone(), ); if self.file_list.current_folder_monitor_mut().is_none() { action::refresh_file_list(&self.sender, &mut self.file_list); } } Event::EndSelection if self.widgets.crop_button().is_active() => action::end_selection( &self.sender, &self.widgets, self.image_list.clone(), self.selection_coords.clone(), ), Event::PreviewSmaller(value) => { action::preview_smaller(&self.sender, &self.settings, value) } Event::PreviewLarger(value) => { action::preview_larger(&self.sender, &self.settings, value) } Event::PreviewFitScreen => action::preview_fit_screen(&self.sender), Event::NextImage => { action::next_image(&self.sender, self.image_list.clone(), &mut self.file_list) } Event::PreviousImage => { action::previous_image(&self.sender, self.image_list.clone(), &mut self.file_list) } Event::RefreshFileList => action::refresh_file_list(&self.sender, &mut self.file_list), Event::ResizePopoverDisplayed => { action::resize_popover_displayed(&self.widgets, self.image_list.clone()) } Event::UpdateResizePopoverWidth => { action::update_resize_popover_width(&self.widgets, self.image_list.clone()) } Event::UpdateResizePopoverHeight => { action::update_resize_popover_height(&self.widgets, self.image_list.clone()) } Event::UndoOperation => { action::undo_operation(&self.sender, &self.settings, self.image_list.clone()) } Event::RedoOperation => { action::redo_operation(&self.sender, &self.settings, self.image_list.clone()) } Event::Print => action::print(&self.sender, &self.widgets, self.image_list.clone()), Event::HideInfoPanel => action::hide_info_panel(&self.widgets), Event::ToggleFullscreen => action::toggle_fullscreen(&self.widgets, &mut self.settings), Event::SetAsWallpaper => action::set_as_wallpaper(&self.sender, &self.file_list), Event::StartZoomGesture => action::start_zoom_gesture(&mut self.settings), Event::ZoomGestureScaleChanged(zoom_scale) => { action::change_scale_on_zoom_gesture(&self.sender, &self.settings, zoom_scale) } Event::CopyCurrentImage => action::copy_current_image(self.image_list.clone()), Event::Quit => action::quit(&self.application), event => debug!("Discarded unused event: {:?}", event), } action::update_buttons_state( &self.widgets, &self.file_list, self.image_list.clone(), &self.settings, ); } } ================================================ FILE: src/file_list.rs ================================================ use std::path::PathBuf; use anyhow::{anyhow, Result}; use gtk::{ gio::{self, Cancellable, FileMonitorFlags, FileQueryInfoFlags, FileType}, prelude::FileExt, }; pub struct FileList { file_list: Vec, current_file: Option<(usize, gio::File)>, current_folder: Option, current_folder_monitor: Option, } impl FileList { pub fn new(current_file: Option) -> Result { if let Some(current_file) = current_file { let current_folder = current_file.parent().ok_or_else(|| { anyhow!( "Couldn't get parent folder for file: {}", current_file.parse_name() ) })?; let mut file_list: Vec = FileList::enumerate_files(¤t_folder)?; file_list.sort_by_key(|file| { file.name() .file_name() .unwrap() .to_str() .unwrap() .to_owned() }); let current_file_index = file_list .iter() .position(|file| file.name() == current_file.basename().unwrap_or_default()) .ok_or_else(|| { anyhow!( "Couldn't find {} in enumerated files", current_file.parse_name() ) })?; let folder_monitor = current_folder .monitor_directory(FileMonitorFlags::NONE, >::None) .ok(); if folder_monitor.is_none() { warn!( "Couldn't get monitor for directory: {}", current_folder.path().unwrap().to_str().unwrap() ); } Ok(FileList { file_list, current_file: Some((current_file_index, current_file)), current_folder: Some(current_folder), current_folder_monitor: folder_monitor, }) } else { Ok(FileList { file_list: Vec::new(), current_file: None, current_folder: None, current_folder_monitor: None, }) } } pub fn refresh(&mut self) -> Result<()> { if let Some(current_folder) = &self.current_folder { if !current_folder.query_exists(>::None) { self.file_list = Vec::new(); self.current_file = None; self.current_folder = None; return Ok(()); } self.file_list = FileList::enumerate_files(current_folder)?; self.file_list.sort_by_key(|file| { file.name() .file_name() .unwrap() .to_str() .unwrap() .to_owned() }); match &self.current_file { Some((_, current_file)) => { let file_index = self.file_list.iter().position(|file| { file.name() == current_file.basename().unwrap_or_default() }); if let Some(file_index) = file_index { self.current_file = Some((file_index, self.current_file.take().unwrap().1)); } else { self.next(); } } None => self.next(), } } Ok(()) } pub fn next(&mut self) { if let Some(current_folder) = &self.current_folder { self.current_file = match self.current_file.take() { Some((_, _)) if self.file_list.is_empty() => None, Some((index, _)) if index + 1 < self.file_list.len() => Some(( index + 1, current_folder.child(self.file_list[index + 1].name()), )), Some((index, _)) if index + 1 >= self.file_list.len() => { Some((0, current_folder.child(self.file_list[0].name()))) } None if !self.file_list.is_empty() => { Some((0, current_folder.child(self.file_list[0].name()))) } _ => None, } } } pub fn previous(&mut self) { if let Some(current_folder) = &self.current_folder { self.current_file = match self.current_file.take() { Some((_, _)) if self.file_list.is_empty() => None, Some((index, _)) if index as i64 > 0 => Some(( index - 1, current_folder.child(self.file_list[index - 1].name()), )), Some((index, _)) if index as i64 - 1 < 0 => Some(( self.file_list.len() - 1, current_folder.child(self.file_list[self.file_list.len() - 1].name()), )), None if !self.file_list.is_empty() => { Some((0, current_folder.child(self.file_list[0].name()))) } _ => None, } } } // pub fn current_folder(&self) -> Option<&gio::File> { // self.current_folder.as_ref() // } pub fn current_file(&self) -> Option<&gio::File> { self.current_file.as_ref().map(|(_, file)| file) } #[allow(dead_code)] // currently used only with feature "wallpaper" pub fn current_file_uri(&self) -> Option { self.current_file .as_ref() .map(|(_, file)| file.uri().to_string()) } pub fn current_file_path(&self) -> Option { self.current_file.as_ref().and_then(|(_, file)| file.path()) } pub fn len(&self) -> usize { self.file_list.len() } fn enumerate_files(folder: &gio::File) -> Result> { Ok(folder .enumerate_children( "standard::*", FileQueryInfoFlags::NONE, >::None, )? .into_iter() .filter_map(|file| file.ok()) .filter(|file| file.file_type() == FileType::Regular) .filter(|file| { file.content_type() .filter(|content_type| content_type.to_string().starts_with("image")) .is_some() }) .collect()) } pub fn current_folder_monitor_mut(&mut self) -> Option<&mut gio::FileMonitor> { self.current_folder_monitor.as_mut() } pub fn delete_current_file(&mut self) -> Result { let deleted_file = self .current_file() .ok_or_else(|| { anyhow!("Cannot delete current file because file list does not have a current file") })? .to_owned(); let deleted_file_path = deleted_file .path() .ok_or_else(|| anyhow!("Deleted file does not have a valid path"))?; self.next(); deleted_file.trash(>::None)?; Ok(deleted_file_path) } } #[cfg(test)] mod tests { use itertools::Itertools; use rand::{distributions::Alphanumeric, Rng}; use crate::test_utils::TestResources; use super::*; const TEST_IMAGE: &[u8] = include_bytes!("resources/test/test_image.png"); #[test] fn file_list_contains_image_files() { let mut test_resources = TestResources::new("test/file_list_contains_image_files"); test_resources.add_file("test.png", TEST_IMAGE); test_resources.add_file("tes2.png", TEST_IMAGE); let file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test.png"), ))) .unwrap(); assert_eq!(2, file_list.len()); } #[test] fn file_list_does_not_contain_other_files() { let mut test_resources = TestResources::new("test/file_list_does_not_contain_other_files"); test_resources.add_file("test.png", TEST_IMAGE); test_resources.add_file("test2.png", TEST_IMAGE); test_resources.add_file("test.txt", "test"); let file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test.png"), ))) .unwrap(); assert_eq!(2, file_list.len()); } #[test] fn file_list_contains_images_without_extension() { let mut test_resources = TestResources::new("test/file_list_contains_images_without_extension"); test_resources.add_file("test", TEST_IMAGE); test_resources.add_file("test2", TEST_IMAGE); let file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test"), ))) .unwrap(); assert_eq!(2, file_list.len()); } #[test] fn file_list_does_not_contain_other_files_without_extension() { let mut test_resources = TestResources::new("test/file_list_does_not_contain_other_files_without_extension"); test_resources.add_file("test", TEST_IMAGE); test_resources.add_file("test2", TEST_IMAGE); test_resources.add_file("test", TEST_IMAGE); test_resources.add_file("testtxt", "test"); let file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test"), ))) .unwrap(); assert_eq!(2, file_list.len()); } #[test] fn file_list_is_in_alphabetical_order() { let mut test_resources = TestResources::new("test/file_list_is_in_alphabetical_order"); let mut random_file_names: Vec = rand::thread_rng() .sample_iter(Alphanumeric) .map(char::from) .chunks(10) .into_iter() .map(|chunk| chunk.collect::()) .take(100) .map(|name| format!("{}.{}", name, "png")) .collect(); random_file_names .iter() .for_each(|file_name| test_resources.add_file(file_name, TEST_IMAGE)); random_file_names.sort(); let mut file_list = FileList::new(Some(gio::File::for_path( test_resources .file_folder() .join(random_file_names.first().unwrap()), ))) .unwrap(); assert_eq!(100, file_list.len()); for file_name in random_file_names.iter() { assert_eq!( file_name, file_list .current_file() .unwrap() .basename() .unwrap() .to_str() .unwrap() ); file_list.next(); } } #[test] fn refresh_file_list_loads_new_images() { let mut test_resources = TestResources::new("test/refresh_file_list_loads_new_images"); test_resources.add_file("test.png", TEST_IMAGE); let mut file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test.png"), ))) .unwrap(); assert_eq!(1, file_list.len()); test_resources.add_file("test2.png", TEST_IMAGE); file_list.refresh().unwrap(); assert_eq!(2, file_list.len()); } #[test] fn refresh_file_list_removes_deleted_images() { let mut test_resources = TestResources::new("test/refresh_file_list_removes_deleted_images"); test_resources.add_file("test.png", TEST_IMAGE); test_resources.add_file("test2.png", TEST_IMAGE); let mut file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test.png"), ))) .unwrap(); assert_eq!(2, file_list.len()); test_resources.remove_file("test2.png"); file_list.refresh().unwrap(); assert_eq!(1, file_list.len()); } #[test] fn test_change_to_next_image() { let mut empty_file_list = FileList::new(None).unwrap(); assert!(empty_file_list.current_file().is_none()); empty_file_list.next(); assert!(empty_file_list.current_file().is_none()); let mut test_resources = TestResources::new("test/test_change_to_next_image"); test_resources.add_file("test1.png", TEST_IMAGE); test_resources.add_file("test2.png", TEST_IMAGE); test_resources.add_file("test3.png", TEST_IMAGE); let mut file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test2.png"), ))) .unwrap(); file_list.next(); assert_eq!( "test3.png", file_list .current_file() .unwrap() .basename() .unwrap() .to_str() .unwrap() ); file_list.next(); assert_eq!( "test1.png", file_list .current_file() .unwrap() .basename() .unwrap() .to_str() .unwrap() ); } #[test] fn test_change_to_previous_image() { let mut empty_file_list = FileList::new(None).unwrap(); assert!(empty_file_list.current_file().is_none()); empty_file_list.previous(); assert!(empty_file_list.current_file().is_none()); let mut test_resources = TestResources::new("test/test_change_to_previous_image"); test_resources.add_file("test1.png", TEST_IMAGE); test_resources.add_file("test2.png", TEST_IMAGE); test_resources.add_file("test3.png", TEST_IMAGE); let mut file_list = FileList::new(Some(gio::File::for_path( test_resources.file_folder().join("test2.png"), ))) .unwrap(); file_list.previous(); assert_eq!( "test1.png", file_list .current_file() .unwrap() .basename() .unwrap() .to_str() .unwrap() ); file_list.previous(); assert_eq!( "test3.png", file_list .current_file() .unwrap() .basename() .unwrap() .to_str() .unwrap() ); } #[test] fn delete_current_file_deletes_file_from_filesystem() { let mut test_resources = TestResources::new("test/delete_current_file_deletes_file_from_filesystem"); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let mut file_list = FileList::new(Some(gio::File::for_path(image_path.as_path()))).unwrap(); file_list.delete_current_file().unwrap(); assert!(std::fs::File::open(image_path).is_err()); } #[test] fn delete_current_file_returns_deleted_file_path() { let mut test_resources = TestResources::new("test/delete_current_file_returns_deleted_file_path"); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let mut file_list = FileList::new(Some(gio::File::for_path(image_path.as_path()))).unwrap(); let file_list_current_file_path = file_list.current_file_path().unwrap(); let deleted_file_path = file_list.delete_current_file().unwrap(); assert_eq!(file_list_current_file_path, deleted_file_path); } #[test] fn file_list_goes_to_next_file_after_removal_of_current_file() { let mut test_resources = TestResources::new("test/file_list_goes_to_next_file_after_removal_of_current_file"); test_resources.add_file("test.png", TEST_IMAGE); test_resources.add_file("test2.png", TEST_IMAGE); test_resources.add_file("test3.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let mut file_list = FileList::new(Some(gio::File::for_path(image_path.as_path()))).unwrap(); let deleted_file_path = file_list.delete_current_file().unwrap(); assert_ne!(deleted_file_path, file_list.current_file_path().unwrap()); } } ================================================ FILE: src/image.rs ================================================ use std::path::Path; use anyhow::{anyhow, Result}; use gtk::gdk_pixbuf::{InterpType, Pixbuf}; use crate::image_operation::{ApplyImageOperation, ImageOperation}; pub type Coordinates = (u32, u32); pub type CoordinatesPair = (Coordinates, Coordinates); pub struct Image { original_image_buffer: Option, current_image_buffer: Option, preview_image_buffer: Option, operations: Vec, current_operation_index: Option, } impl Image { pub fn load>(path: P) -> Result { let image_buffer = Pixbuf::from_file(path)?; Ok(Image { original_image_buffer: Some(image_buffer.clone()), current_image_buffer: Some(image_buffer), preview_image_buffer: None, operations: Vec::new(), current_operation_index: None, }) } pub fn save>(&mut self, path: P, clear_operations: bool) -> Result<()> { let current_image_buffer = self .current_image_buffer .as_mut() .ok_or_else(|| anyhow!("Image buffer is missing!"))?; let extension = path .as_ref() .extension() .and_then(|extension| extension.to_str()) .ok_or_else(|| anyhow!("File path doesn't have file extension"))?; let lowercase_extension = extension.to_lowercase(); let file_type = match lowercase_extension.as_str() { file_type @ "jpeg" | file_type @ "png" | file_type @ "tiff" | file_type @ "ico" | file_type @ "bmp" => file_type, "jpg" => "jpeg", "tif" => "tiff", _ => "png", }; let options: &[(&str, &str)] = match file_type { "jpeg" => &[("quality", "100")], "png" => &[("compression", "9")], _ => &[], }; current_image_buffer.savev(path.as_ref(), file_type, options)?; if clear_operations { self.original_image_buffer = Some(current_image_buffer.clone()); self.current_operation_index = None; self.operations.clear(); } Ok(()) } pub fn reload>(self, path: P) -> Result { let original_image_buffer = Pixbuf::from_file(path)?; let mut current_image_buffer = original_image_buffer.clone(); if let Some(current_operation_index) = self.current_operation_index { current_image_buffer = self .operations .iter() .take(current_operation_index + 1) .fold(current_image_buffer, |image, operation| { image.apply_operation(operation).unwrap_or(image) }); } Ok(Image { original_image_buffer: Some(original_image_buffer), current_image_buffer: Some(current_image_buffer), preview_image_buffer: None, operations: self.operations, current_operation_index: self.current_operation_index, }) } pub fn remove_image_buffers(&mut self) { self.original_image_buffer = None; self.current_image_buffer = None; self.preview_image_buffer = None; } fn image_buffer_scale_to_fit(&self, canvas_width: u32, canvas_height: u32) -> Option { if let Some(image_buffer) = &self.current_image_buffer { let image_width = image_buffer.width() as f64; let image_height = image_buffer.height() as f64; let width_ratio = canvas_width as f64 / image_width; let height_ratio = canvas_height as f64 / image_height; let scale_ratio = width_ratio.min(height_ratio); image_buffer.scale_simple( (image_width * scale_ratio) as i32, (image_height * scale_ratio) as i32, InterpType::Nearest, ) } else { None } } fn image_buffer_resize(&self, scale: u32) -> Option { if let Some(image_buffer) = &self.current_image_buffer { image_buffer.scale_simple( (image_buffer.width() as f64 * (scale as f64 / 100.0)) as i32, (image_buffer.height() as f64 * (scale as f64 / 100.0)) as i32, InterpType::Bilinear, ) } else { None } } pub fn create_preview_image_buffer(&mut self, preview_size: PreviewSize) { self.preview_image_buffer = match preview_size { PreviewSize::BestFit(canvas_width, canvas_height) => { self.image_buffer_scale_to_fit(canvas_width, canvas_height) } PreviewSize::OriginalSize => self.current_image_buffer.clone(), PreviewSize::Resized(scale) => self.image_buffer_resize(scale), }; } pub fn create_print_image_buffer( &self, canvas_width: u32, canvas_height: u32, ) -> Option { if let Some((image_width, image_height)) = self.image_size() { if image_width > canvas_width || image_height > canvas_height { self.image_buffer_scale_to_fit(canvas_width, canvas_height) } else { self.current_image_buffer.clone() } } else { None } } pub fn preview_image_buffer(&self) -> Option<&Pixbuf> { self.preview_image_buffer.as_ref() } pub fn current_image_buffer(&self) -> Option<&Pixbuf> { self.current_image_buffer.as_ref() } pub fn image_size(&self) -> Option<(u32, u32)> { self.current_image_buffer .as_ref() .map(|image_buffer| (image_buffer.width() as u32, image_buffer.height() as u32)) } pub fn image_aspect_ratio(&self) -> Option { self.image_size() .map(|(image_width, image_height)| image_width as f64 / image_height as f64) } pub fn preview_image_buffer_size(&self) -> Option<(u32, u32)> { self.preview_image_buffer .as_ref() .map(|image_buffer| (image_buffer.width() as u32, image_buffer.height() as u32)) } pub fn preview_coords_to_image_coords( &self, coords: CoordinatesPair, ) -> Option { let ((start_coord_x, start_coord_y), (end_coord_x, end_coord_y)) = coords; if let Some((image_width, image_height)) = self.image_size() { if let Some((preview_width, preview_height)) = self.preview_image_buffer_size() { Some(( ( (start_coord_x as f64 * (image_width as f64 / preview_width as f64)) as u32, (start_coord_y as f64 * (image_height as f64 / preview_height as f64)) as u32, ), ( (end_coord_x as f64 * (image_width as f64 / preview_width as f64)) as u32, (end_coord_y as f64 * (image_height as f64 / preview_height as f64)) as u32, ), )) } else { None } } else { None } } pub fn has_operations(&self) -> bool { !self.operations.is_empty() && self.current_operation_index.is_some() } pub fn can_undo_operation(&self) -> bool { self.current_operation_index.is_some() } pub fn undo_operation(&mut self) { if self.can_undo_operation() { self.current_operation_index = self.current_operation_index.unwrap().checked_sub(1); self.current_image_buffer = Some( self.operations .iter() .take( self.current_operation_index .map_or(0, |operation_index| operation_index + 1), ) .fold( self.original_image_buffer.clone().unwrap(), |image, operation| image.apply_operation(operation).unwrap_or(image), ), ); } } pub fn can_redo_operation(&self) -> bool { match self.current_operation_index { Some(operation_index) => operation_index + 1 < self.operations.len(), None => !self.operations.is_empty(), } } pub fn redo_operation(&mut self) { if self.can_redo_operation() { self.current_operation_index = self .current_operation_index .map_or(Some(0), |current_operation_index| { Some(current_operation_index + 1) }); self.current_image_buffer = Some( self.operations .iter() .take(self.current_operation_index.unwrap() + 1) .fold( self.original_image_buffer.clone().unwrap(), |image, operation| image.apply_operation(operation).unwrap_or(image), ), ); } } } impl ApplyImageOperation for Image { type Result = Self; fn apply_operation(mut self, image_operation: &ImageOperation) -> Self::Result { if let Some(image_buffer) = self.current_image_buffer { let applied_operation_image_buffer = image_buffer.apply_operation(image_operation); if applied_operation_image_buffer.is_some() { if let Some(current_operation_index) = self.current_operation_index { self.operations.truncate(current_operation_index + 1); } self.operations.push(*image_operation); self.current_operation_index = Some(self.operations.len() - 1); } self.current_image_buffer = Some(applied_operation_image_buffer.unwrap_or(image_buffer)); } self } } #[derive(Clone, Copy, Debug)] pub enum PreviewSize { BestFit(u32, u32), OriginalSize, Resized(u32), } impl From for String { fn from(value: PreviewSize) -> Self { match value { PreviewSize::BestFit(_, _) => String::from("Fit screen"), PreviewSize::OriginalSize => String::from("100%"), PreviewSize::Resized(value) => format!("{}%", value), } } } impl PreviewSize { pub fn smaller(self) -> Option { match self { PreviewSize::BestFit(_, _) => Some(PreviewSize::OriginalSize), PreviewSize::OriginalSize => Some(PreviewSize::Resized(75)), PreviewSize::Resized(value) if value > 200 => Some(PreviewSize::Resized(200)), PreviewSize::Resized(value) if value > 150 => Some(PreviewSize::Resized(150)), PreviewSize::Resized(value) if value > 133 => Some(PreviewSize::Resized(133)), PreviewSize::Resized(value) if value > 100 => Some(PreviewSize::OriginalSize), PreviewSize::Resized(value) if value > 75 => Some(PreviewSize::Resized(75)), PreviewSize::Resized(value) if value > 66 => Some(PreviewSize::Resized(66)), PreviewSize::Resized(value) if value > 50 => Some(PreviewSize::Resized(50)), PreviewSize::Resized(value) if value > 33 => Some(PreviewSize::Resized(33)), PreviewSize::Resized(value) if value > 25 => Some(PreviewSize::Resized(25)), PreviewSize::Resized(value) if value > 10 => Some(PreviewSize::Resized(10)), PreviewSize::Resized(value) if value > 5 => Some(PreviewSize::Resized(5)), PreviewSize::Resized(_) => None, } } pub fn smaller_by(self, value: u32) -> Option { let old_value = match self { PreviewSize::BestFit(_, _) => return Some(PreviewSize::OriginalSize), PreviewSize::OriginalSize => 100, PreviewSize::Resized(value) => value, }; old_value .checked_sub(value) .filter(|value| value >= &5) .map(|value| { if value == 100 { PreviewSize::OriginalSize } else { PreviewSize::Resized(value) } }) } pub fn can_be_smaller(&self) -> bool { !matches!(self, PreviewSize::Resized(value) if value <= &5) } pub fn larger(self) -> Option { match self { PreviewSize::BestFit(_, _) => Some(PreviewSize::OriginalSize), PreviewSize::OriginalSize => Some(PreviewSize::Resized(133)), PreviewSize::Resized(value) if value < 10 => Some(PreviewSize::Resized(10)), PreviewSize::Resized(value) if value < 25 => Some(PreviewSize::Resized(25)), PreviewSize::Resized(value) if value < 33 => Some(PreviewSize::Resized(33)), PreviewSize::Resized(value) if value < 50 => Some(PreviewSize::Resized(50)), PreviewSize::Resized(value) if value < 66 => Some(PreviewSize::Resized(66)), PreviewSize::Resized(value) if value < 75 => Some(PreviewSize::Resized(75)), PreviewSize::Resized(value) if value < 100 => Some(PreviewSize::OriginalSize), PreviewSize::Resized(value) if value < 133 => Some(PreviewSize::Resized(133)), PreviewSize::Resized(value) if value < 150 => Some(PreviewSize::Resized(150)), PreviewSize::Resized(value) if value < 200 => Some(PreviewSize::Resized(200)), PreviewSize::Resized(value) if value < 500 => Some(PreviewSize::Resized(500)), PreviewSize::Resized(_) => None, } } pub fn larger_by(self, value: u32) -> Option { let old_value = match self { PreviewSize::BestFit(_, _) => return Some(PreviewSize::OriginalSize), PreviewSize::OriginalSize => 100, PreviewSize::Resized(value) => value, }; old_value .checked_add(value) .filter(|value| value <= &500) .map(|value| { if value == 100 { PreviewSize::OriginalSize } else { PreviewSize::Resized(value) } }) } pub fn can_be_larger(&self) -> bool { !matches!(self, PreviewSize::Resized(value) if value >= &500) } } #[cfg(test)] mod tests { use gtk::gdk_pixbuf::PixbufRotation; use crate::test_utils::TestResources; use super::*; const TEST_IMAGE: &[u8] = include_bytes!("resources/test/test_image.png"); #[test] fn test_load_image() { let mut test_resources = TestResources::new("test/test_load_image"); test_resources.add_file("test.png", TEST_IMAGE); let image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); assert_eq!( Pixbuf::from_file(test_resources.file_folder().join("test.png")) .unwrap() .pixel_bytes(), image.original_image_buffer.unwrap().pixel_bytes() ); assert_eq!( Pixbuf::from_file(test_resources.file_folder().join("test.png")) .unwrap() .pixel_bytes(), image.current_image_buffer.unwrap().pixel_bytes() ); assert!(image.operations.is_empty()); } #[test] fn save_image() { let mut test_resources = TestResources::new("test/save_image"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); let saved_file_path = test_resources.file_folder().join("test2.png"); image.save(&saved_file_path, false).unwrap(); assert!(std::fs::File::open(saved_file_path).is_ok()); } #[test] fn test_save_image_without_clear_operations() { let mut test_resources = TestResources::new("test/test_save_image_without_clear_operations"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Rotate(PixbufRotation::Clockwise)); assert!(image.has_operations()); image .save(test_resources.file_folder().join("test2.png"), false) .unwrap(); assert!(image.has_operations()); assert_ne!( image.original_image_buffer.unwrap().pixel_bytes(), image.current_image_buffer.unwrap().pixel_bytes() ) } #[test] fn test_save_image_with_clear_operations() { let mut test_resources = TestResources::new("test/test_save_image_with_clear_operations"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Rotate(PixbufRotation::Clockwise)); assert!(image.has_operations()); image .save(test_resources.file_folder().join("test2.png"), true) .unwrap(); assert!(!image.has_operations()); assert_eq!( image.original_image_buffer.unwrap().pixel_bytes(), image.current_image_buffer.unwrap().pixel_bytes() ) } #[test] fn save_image_uses_extensions_for_file_types_supported_by_pixbuf_save() { let mut test_resources = TestResources::new( "test/save_image_uses_extensions_for_file_types_supported_by_pixbuf_save", ); let file_extensions = vec!["png", "jpg", "tif", "ico", "bmp"]; for extension in file_extensions { let file_name = format!("{}.{}", "test", extension); test_resources.add_file(&file_name, TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join(file_name)).unwrap(); let saved_file_path = test_resources .file_folder() .join(format!("{}.{}", "test2", extension)); image.save(&saved_file_path, false).unwrap(); let saved_file_inferred_extension = infer::get_from_path(saved_file_path) .unwrap() .unwrap() .extension(); assert_eq!(saved_file_inferred_extension, extension); } } #[test] fn file_extensions_jpg_and_jpeg_are_supported() { let mut test_resources = TestResources::new("test/save_file_extensions_jpg_and_jpeg_are_supported"); test_resources.add_file("test.jpg", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.jpg")).unwrap(); let saved_file_path = test_resources.file_folder().join("test2.jpg"); image.save(&saved_file_path, false).unwrap(); let saved_file_inferred_extension = infer::get_from_path(saved_file_path) .unwrap() .unwrap() .extension(); assert_eq!(saved_file_inferred_extension, "jpg"); test_resources.add_file("test.jpeg", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.jpeg")).unwrap(); let saved_file_path = test_resources.file_folder().join("test2.jpeg"); image.save(&saved_file_path, false).unwrap(); let saved_file_inferred_extension = infer::get_from_path(saved_file_path) .unwrap() .unwrap() .extension(); assert_eq!(saved_file_inferred_extension, "jpg"); } #[test] fn test_image_reload() { let mut test_resources = TestResources::new("test/test_image_reload"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Rotate(PixbufRotation::Clockwise)); let original_image_buffer = image.original_image_buffer.clone(); let current_image_buffer = image.current_image_buffer.clone(); image.remove_image_buffers(); assert!(image.original_image_buffer.is_none() && image.current_image_buffer.is_none()); image = image .reload(test_resources.file_folder().join("test.png")) .unwrap(); assert_eq!( original_image_buffer.unwrap().pixel_bytes(), image.original_image_buffer.unwrap().pixel_bytes() ); assert_eq!( current_image_buffer.unwrap().pixel_bytes(), image.current_image_buffer.unwrap().pixel_bytes() ); } #[test] fn create_preview_original_size() { let mut test_resources = TestResources::new("test/create_preview_original_size"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image.create_preview_image_buffer(PreviewSize::OriginalSize); assert_eq!( image.current_image_buffer.unwrap().pixel_bytes(), image.preview_image_buffer.unwrap().pixel_bytes() ); } #[test] fn create_preview_scale_to_fit() { let mut test_resources = TestResources::new("test/create_preview_scale_to_fit"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Resize((1000, 500))); image.create_preview_image_buffer(PreviewSize::BestFit(500, 500)); assert_eq!((500, 250), image.preview_image_buffer_size().unwrap()); } #[test] fn create_preview_resized() { let mut test_resources = TestResources::new("test/create_preview_resized"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Resize((100, 100))); image.create_preview_image_buffer(PreviewSize::Resized(90)); assert_eq!((90, 90), image.preview_image_buffer_size().unwrap()); } #[test] fn preview_coords_to_image_coords() { let mut test_resources = TestResources::new("test/preview_coords_to_image_coords"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Resize((100, 100))); image.create_preview_image_buffer(PreviewSize::Resized(200)); assert_eq!( ((10, 10), (20, 20)), image .preview_coords_to_image_coords(((20, 20), (40, 40))) .unwrap() ); } #[test] fn undo_operation() { let mut test_resources = TestResources::new("test/undo_operation"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Resize((100, 100))); image = image.apply_operation(&ImageOperation::Rotate(PixbufRotation::Clockwise)); assert!(image.can_undo_operation()); image.undo_operation(); assert!( image.can_redo_operation() && image.current_operation_index == Some(0) && image.operations.len() == 2 ); image.undo_operation(); assert!( image.can_redo_operation() && image.current_operation_index == None && image.operations.len() == 2 ); } #[test] fn redo_operation() { let mut test_resources = TestResources::new("test/redo_operation"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); image = image.apply_operation(&ImageOperation::Resize((100, 100))); image = image.apply_operation(&ImageOperation::Rotate(PixbufRotation::Clockwise)); assert!(!image.can_redo_operation()); image.undo_operation(); assert!( image.can_redo_operation() && image.current_operation_index == Some(0) && image.operations.len() == 2 ); image.redo_operation(); assert!( !image.can_redo_operation() && image.current_operation_index == Some(1) && image.operations.len() == 2 ); } #[test] fn apply_operation() { let mut test_resources = TestResources::new("test/apply_operation"); test_resources.add_file("test.png", TEST_IMAGE); let mut image = Image::load(test_resources.file_folder().join("test.png")).unwrap(); assert!(image.operations.is_empty() && image.current_operation_index.is_none()); image = image.apply_operation(&ImageOperation::Resize((100, 100))); assert!(image.operations.len() == 1 && image.current_operation_index == Some(0)); assert!( image.original_image_buffer.unwrap().pixel_bytes() != image.current_image_buffer.unwrap().pixel_bytes() ); } } ================================================ FILE: src/image_list.rs ================================================ use std::{ collections::HashMap, ops::{Index, IndexMut}, path::{Path, PathBuf}, }; use crate::image::Image; use anyhow::{anyhow, Result}; use gtk::gdk::Texture; pub struct ImageList { images: HashMap, current_image_path: Option, } impl ImageList { pub fn new() -> Self { Self { images: HashMap::new(), current_image_path: None, } } pub fn remove(&mut self, key: &Path) -> Option { self.images.remove(key) } pub fn insert(&mut self, key: PathBuf, value: Image) { self.images.insert(key, value); } pub fn set_current_image_path(&mut self, current_image_path: Option) { self.current_image_path = current_image_path; } // pub fn current_image(&self) -> Option<&Image> { // self.current_image_path.as_ref().map(|image_path| self.images.get(image_path)).flatten() // } pub fn remove_current_image(&mut self) -> Option { self.current_image_path .clone() .and_then(|image_path| self.remove(&image_path)) } pub fn current_image_mut(&mut self) -> Option<&mut Image> { self.current_image_path .clone() .and_then(move |image_path| self.images.get_mut(&image_path)) } pub fn current_image(&self) -> Option<&Image> { self.current_image_path .as_ref() .and_then(|image_path| self.images.get(image_path)) } pub fn current_image_path(&self) -> Option { self.current_image_path.clone() } pub fn save_current_image(&mut self, filename: Option) -> Result<()> { let (filename, clear_operations) = if let Some(filename) = filename { (filename, false) } else { ( self.current_image_path .clone() .ok_or_else(|| anyhow!("Current image path is not set"))?, true, ) }; let current_image = self .current_image_mut() .ok_or_else(|| anyhow!("Couldn't load current image"))?; current_image.save(filename, clear_operations)?; Ok(()) } pub fn copy_current_image(&self, clipboard: gtk::gdk::Clipboard) { if let Some(current_image) = self.current_image() { if let Some(buffer) = current_image.current_image_buffer() { clipboard.set_texture(&Texture::for_pixbuf(buffer)); } } } } impl Index<&PathBuf> for ImageList { type Output = Image; fn index(&self, index: &PathBuf) -> &Self::Output { &self.images[index] } } impl IndexMut<&PathBuf> for ImageList { fn index_mut(&mut self, index: &PathBuf) -> &mut Self::Output { self.images.get_mut(index).unwrap() } } #[cfg(test)] mod tests { use crate::{ image_operation::{ApplyImageOperation, ImageOperation}, test_utils::TestResources, }; use super::*; const TEST_IMAGE: &[u8] = include_bytes!("resources/test/test_image.png"); #[test] fn save_current_image_overwrites_image_at_current_image_path_when_filename_is_set_to_none() { let mut test_resources = TestResources::new("test/save_current_image_overwrites_image_at_current_image_path_when_filename_is_set_to_none"); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let creation_date = std::fs::File::open(&image_path) .unwrap() .metadata() .unwrap() .modified() .unwrap(); let image = Image::load(&image_path).unwrap(); let mut image_list = ImageList::new(); image_list.insert(image_path.clone(), image); image_list.set_current_image_path(Some(image_path.clone())); image_list.save_current_image(None).unwrap(); let modification_date = std::fs::File::open(&image_path) .unwrap() .metadata() .unwrap() .modified() .unwrap(); assert!(modification_date > creation_date); } #[test] fn save_current_image_creates_a_new_image_when_filename_is_set() { let mut test_resources = TestResources::new("test/save_current_image_creates_a_new_image_when_filename_is_set"); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let image = Image::load(&image_path).unwrap(); let mut image_list = ImageList::new(); image_list.insert(image_path.clone(), image); image_list.set_current_image_path(Some(image_path.clone())); let new_image_path = test_resources.file_folder().join("test2.png"); image_list .save_current_image(Some(new_image_path.clone())) .unwrap(); assert!(std::fs::File::open(new_image_path).is_ok()); } #[test] fn save_current_image_clears_image_operations_when_filename_is_set_to_none() { let mut test_resources = TestResources::new( "test/save_current_image_clears_image_operations_when_filename_is_set_to_none", ); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let mut image = Image::load(&image_path).unwrap(); image = image.apply_operation(&ImageOperation::Resize((10, 10))); let mut image_list = ImageList::new(); image_list.insert(image_path.clone(), image); image_list.set_current_image_path(Some(image_path.clone())); assert!(image_list.current_image().unwrap().has_operations()); image_list.save_current_image(None).unwrap(); assert!(!image_list.current_image().unwrap().has_operations()); } #[test] fn save_current_image_does_not_clear_image_operations_when_filename_is_set() { let mut test_resources = TestResources::new( "test/save_current_image_does_not_clear_image_operations_when_filename_is_set", ); test_resources.add_file("test.png", TEST_IMAGE); let image_path = test_resources.file_folder().join("test.png"); let mut image = Image::load(&image_path).unwrap(); image = image.apply_operation(&ImageOperation::Resize((10, 10))); let mut image_list = ImageList::new(); image_list.insert(image_path.clone(), image); image_list.set_current_image_path(Some(image_path.clone())); assert!(image_list.current_image().unwrap().has_operations()); image_list .save_current_image(Some(test_resources.file_folder().join("test2.png"))) .unwrap(); assert!(image_list.current_image().unwrap().has_operations()); } } ================================================ FILE: src/image_operation.rs ================================================ use std::cmp; use gtk::gdk_pixbuf::{InterpType, Pixbuf, PixbufRotation}; use crate::image::CoordinatesPair; #[derive(Copy, Clone, Debug)] pub enum ImageOperation { Rotate(PixbufRotation), Crop(CoordinatesPair), Resize((u32, u32)), } pub trait ApplyImageOperation { type Result; fn apply_operation(self, image_operation: &ImageOperation) -> Self::Result; } impl ApplyImageOperation for &Pixbuf { type Result = Option; fn apply_operation(self, image_operation: &ImageOperation) -> Self::Result { match image_operation { ImageOperation::Rotate(rotation) => self.rotate_simple(*rotation), ImageOperation::Crop(( (start_position_x, start_position_y), (end_position_x, end_position_y), )) => { let x = *cmp::min(start_position_x, end_position_x); let y = *cmp::min(start_position_y, end_position_y); let width = *cmp::max(start_position_x, end_position_x) - x; let height = *cmp::max(start_position_y, end_position_y) - y; self.new_subpixbuf(x as i32, y as i32, width as i32, height as i32) } ImageOperation::Resize((width, height)) => { self.scale_simple(*width as i32, *height as i32, InterpType::Bilinear) } } } } #[cfg(test)] mod tests { use crate::test_utils::TestResources; use super::*; const TEST_IMAGE: &[u8] = include_bytes!("resources/test/test_image.png"); #[test] fn test_apply_rotate_image_operation_on_pixbuf() { let mut test_resources = TestResources::new("test/test_apply_rotate_image_operation_on_pixbuf"); test_resources.add_file("test.png", TEST_IMAGE); let pixbuf = Pixbuf::from_file(test_resources.file_folder().join("test.png")).unwrap(); let image_operation = ImageOperation::Rotate(PixbufRotation::Clockwise); assert_eq!( pixbuf .rotate_simple(PixbufRotation::Clockwise) .unwrap() .pixel_bytes(), pixbuf .apply_operation(&image_operation) .unwrap() .pixel_bytes() ); } #[test] fn test_apply_crop_image_operation_on_pixbuf() { let mut test_resources = TestResources::new("test/test_apply_crop_image_operation_on_pixbuf"); test_resources.add_file("test.png", TEST_IMAGE); let pixbuf = Pixbuf::from_file(test_resources.file_folder().join("test.png")).unwrap(); let image_operation = ImageOperation::Crop(((10, 10), (20, 20))); assert_eq!( pixbuf.new_subpixbuf(10, 10, 10, 10).unwrap().pixel_bytes(), pixbuf .apply_operation(&image_operation) .unwrap() .pixel_bytes() ); } #[test] fn test_apply_resize_image_operation_on_pixbuf() { let mut test_resources = TestResources::new("test/test_apply_resize_image_operation_on_pixbuf"); test_resources.add_file("test.png", TEST_IMAGE); let pixbuf = Pixbuf::from_file(test_resources.file_folder().join("test.png")).unwrap(); let image_operation = ImageOperation::Resize((10, 10)); assert_eq!( pixbuf .scale_simple(10, 10, InterpType::Bilinear) .unwrap() .pixel_bytes(), pixbuf .apply_operation(&image_operation) .unwrap() .pixel_bytes() ); } } ================================================ FILE: src/main.rs ================================================ use app::App; use gtk::{gio::ApplicationFlags, prelude::*, Application}; #[macro_use] extern crate log; mod app; mod file_list; mod image; mod image_list; mod image_operation; mod settings; mod ui; #[cfg(test)] mod test_utils; fn main() { env_logger::init(); let application = Application::new( Some("com.github.weclaw1.ImageRoll"), ApplicationFlags::HANDLES_OPEN | ApplicationFlags::NON_UNIQUE, ); application.connect_activate(|app| { App::create(app, None); }); application.connect_open(move |app, files, _| { App::create(app, Some(&files[0])); }); application.run(); } ================================================ FILE: src/resources/cargo-sources.json ================================================ [ { "type": 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MimeType=image/bmp;image/gif;image/jpeg;image/jpg;image/pjpeg;image/png;image/tiff;image/x-bmp;image/x-gray;image/x-icb;image/x-ico;image/x-png;image/x-portable-anymap;image/x-portable-bitmap;image/x-portable-graymap;image/x-portable-pixmap;image/x-xbitmap;image/x-xpixmap;image/x-pcx;image/svg+xml;image/svg+xml-compressed;image/vnd.wap.wbmp;image/x-icns; ================================================ FILE: src/resources/com.github.weclaw1.ImageRoll.gschema.xml ================================================ 1024 Last window width 768 Last window height ================================================ FILE: src/resources/com.github.weclaw1.ImageRoll.metainfo.xml ================================================ com.github.weclaw1.ImageRoll Image Roll Image viewer with basic image manipulation tools CC0-1.0 MIT

Image Roll is a simple and fast GTK image viewer with basic image manipulation tools. Written in rust.

com.github.weclaw1.ImageRoll.desktop https://raw.githubusercontent.com/weclaw1/image-roll/main/src/resources/screenshot.png Robert Węcławski https://github.com/weclaw1/image-roll https://github.com/weclaw1/image-roll/issues ================================================ FILE: src/resources/com.github.weclaw1.ImageRoll.yaml ================================================ app-id: com.github.weclaw1.ImageRoll runtime: org.gnome.Platform runtime-version: '42' sdk: org.gnome.Sdk sdk-extensions: - org.freedesktop.Sdk.Extension.rust-stable command: image-roll finish-args: - --share=ipc - --socket=fallback-x11 - --socket=wayland - --filesystem=home - --filesystem=/mnt - --filesystem=/media - --filesystem=/run/media - --device=dri build-options: append-path: /usr/lib/sdk/rust-stable/bin env: CARGO_HOME: /run/build/image-roll/cargo modules: - name: image-roll buildsystem: simple build-commands: - cargo --offline fetch --manifest-path Cargo.toml - cargo --offline build --release - install 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False Save False Save as... False Copy False Set as wallpaper False Print False insert-link-symbolic width_adjustment 0.5 vertical x 5 5 height_adjustment 0.5 vertical False emblem-ok-symbolic top 10.0 1.0 2147483647.0 10.0 1.0 2147483647.0 ================================================ FILE: src/resources/resources.xml ================================================ image-roll.ui com.github.weclaw1.ImageRoll.svg icons/crop-symbolic.svg ================================================ FILE: src/settings.rs ================================================ use gtk::gio; use gtk::gio::prelude::SettingsExt; use gtk::gio::SettingsSchemaSource; use crate::image::PreviewSize; #[derive(Clone)] pub struct Settings { gio_settings: Option, scale: PreviewSize, scale_before_zoom_gesture: Option, fullscreen: bool, } impl Settings { pub fn new(application_id: &str) -> Settings { let gio_settings = match SettingsSchemaSource::default() { Some(schema_source) => { if schema_source.lookup(application_id, true).is_some() { Some(gio::Settings::new(application_id)) } else { None } } None => None, }; Settings { gio_settings, scale: PreviewSize::BestFit(0, 0), scale_before_zoom_gesture: None, fullscreen: false, } } pub fn set_window_size(&self, window_size: (u32, u32)) { if let Some(gio_settings) = self.gio_settings.as_ref() { let (window_width, window_height) = window_size; gio_settings .set_uint("window-width", window_width) .expect("Could not set setting window-width."); gio_settings .set_uint("window-height", window_height) .expect("Could not set setting window-height."); } } pub fn window_size(&self) -> (u32, u32) { match self.gio_settings.as_ref() { Some(gio_settings) => ( gio_settings.uint("window-width"), gio_settings.uint("window-height"), ), None => (1024, 768), } } pub fn set_scale(&mut self, preview_size: PreviewSize) { self.scale = preview_size; } pub fn scale(&self) -> PreviewSize { self.scale } pub fn set_fullscreen(&mut self, fullscreen: bool) { self.fullscreen = fullscreen; } pub fn fullscreen(&self) -> bool { self.fullscreen } pub fn scale_before_zoom_gesture(&self) -> Option { self.scale_before_zoom_gesture } pub fn set_scale_before_zoom_gesture( &mut self, scale_before_zoom_gesture: Option, ) { self.scale_before_zoom_gesture = scale_before_zoom_gesture; } } ================================================ FILE: src/test_utils.rs ================================================ use std::path::{Path, PathBuf}; pub struct TestResources { file_folder: PathBuf, } impl TestResources { pub fn new>(file_folder: P) -> Self { std::fs::create_dir_all(&file_folder).unwrap(); Self { file_folder: file_folder.as_ref().to_path_buf(), } } pub fn add_file, C: AsRef<[u8]>>(&mut self, file_name: T, contents: C) { std::fs::write(self.file_folder.join(file_name.as_ref()), contents).unwrap(); } pub fn remove_file>(&mut self, file_name: T) { std::fs::remove_file(self.file_folder.join(file_name.as_ref())).unwrap(); } pub fn file_folder(&self) -> &Path { self.file_folder.as_path() } } impl Drop for TestResources { fn drop(&mut self) { std::fs::remove_dir_all(self.file_folder.as_path()).unwrap(); } } ================================================ FILE: src/ui/action.rs ================================================ use std::{ cell::{Cell, RefCell}, path::PathBuf, rc::Rc, }; #[cfg(feature = "wallpaper")] use ashpd::{ desktop::wallpaper::{self, SetOn}, WindowIdentifier, }; use gtk::{ gdk, gio, glib::{self, timeout_future_seconds, Sender}, prelude::{ DisplayExt, FileMonitorExt, GdkCairoContextExt, GtkApplicationExt, GtkWindowExt, PrintOperationExt, ToggleButtonExt, WidgetExt, }, traits::DrawingAreaExt, MessageType, }; use crate::{ file_list::FileList, image::{self, CoordinatesPair, PreviewSize}, image_list::ImageList, image_operation::{ApplyImageOperation, ImageOperation}, settings::Settings, }; use super::{ event::{post_event, Event}, widgets::Widgets, }; pub fn refresh_file_list(sender: &Sender, file_list: &mut FileList) { post_event(sender, Event::HideInfoPanel); if let Err(error) = file_list.refresh() { post_event( sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ); return; }; post_event(sender, Event::LoadImage(file_list.current_file_path())); } pub fn open_file( sender: &Sender, image_list: Rc>, file_list: &mut FileList, file: gio::File, ) { post_event(sender, Event::HideInfoPanel); image_list.replace(ImageList::new()); let new_file_list = match FileList::new(Some(file)) { Ok(file_list) => file_list, Err(error) => { post_event( sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ); return; } }; *file_list = new_file_list; post_event(sender, Event::LoadImage(file_list.current_file_path())); let sender = sender.clone(); file_list .current_folder_monitor_mut() .unwrap() .connect_changed(move |_, _, _, _| { post_event(&sender, Event::RefreshFileList); }); } pub fn load_image( sender: &Sender, settings: &mut Settings, widgets: &Widgets, image_list: Rc>, file_path: Option, ) { hide_info_panel(widgets); let mut image_list = image_list.borrow_mut(); if let Some(file_path) = file_path { let image = if let Some(image) = image_list.remove(&file_path) { image.reload(&file_path) } else { image::Image::load(&file_path) }; let image = match image { Ok(image) => image, Err(error) => { image_list.set_current_image_path(None); post_event(sender, Event::RefreshPreview(settings.scale())); post_event( sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ); return; } }; image_list.insert(file_path.clone(), image); widgets.window().set_title( file_path .file_name() .and_then(|file_name| file_name.to_str()), ); image_list.set_current_image_path(Some(file_path)); if let PreviewSize::BestFit(0, 0) = settings.scale() { let new_scale = PreviewSize::BestFit( widgets.image_viewport().allocation().width() as u32, widgets.image_viewport().allocation().height() as u32, ); settings.set_scale(new_scale); } post_event(sender, Event::RefreshPreview(settings.scale())); } else { widgets.window().set_title(Some("Image Roll")); image_list.set_current_image_path(None); post_event(sender, Event::RefreshPreview(settings.scale())); } } pub fn next_image( sender: &Sender, image_list: Rc>, file_list: &mut FileList, ) { if let Some(current_image) = image_list.borrow_mut().current_image_mut() { current_image.remove_image_buffers(); } file_list.next(); post_event(sender, Event::LoadImage(file_list.current_file_path())); } pub fn previous_image( sender: &Sender, image_list: Rc>, file_list: &mut FileList, ) { if let Some(current_image) = image_list.borrow_mut().current_image_mut() { current_image.remove_image_buffers(); } file_list.previous(); post_event(sender, Event::LoadImage(file_list.current_file_path())); } pub fn image_viewport_resize( sender: &Sender, settings: &mut Settings, viewport_size: (u32, u32), ) { if let PreviewSize::BestFit(_, _) = settings.scale() { let new_scale = PreviewSize::BestFit(viewport_size.0, viewport_size.1); settings.set_scale(new_scale); post_event(sender, Event::RefreshPreview(new_scale)); } } pub fn refresh_preview( widgets: &Widgets, image_list: Rc>, preview_size: PreviewSize, ) { widgets .preview_size_label() .set_text(String::from(preview_size).as_str()); if let Some(image) = image_list.borrow_mut().current_image_mut() { image.create_preview_image_buffer(preview_size); if let Some((preview_image_width, preview_image_height)) = image.preview_image_buffer_size() { widgets .image_widget() .set_content_width(preview_image_width as i32); widgets .image_widget() .set_content_height(preview_image_height as i32); } } else { widgets.image_widget().set_content_width(0); widgets.image_widget().set_content_height(0); } widgets.image_widget().queue_draw(); } pub fn change_preview_size( sender: &Sender, widgets: &Widgets, settings: &mut Settings, mut preview_size: PreviewSize, ) { if let PreviewSize::BestFit(_, _) = preview_size { let viewport_allocation = widgets.image_viewport().allocation(); preview_size = PreviewSize::BestFit( viewport_allocation.width() as u32, viewport_allocation.height() as u32, ); } settings.set_scale(preview_size); post_event(sender, Event::RefreshPreview(preview_size)); } pub fn preview_smaller(sender: &Sender, settings: &Settings, value: Option) { let new_scale = match value { None => settings.scale().smaller(), Some(value) => settings.scale().smaller_by(value), }; if let Some(new_scale) = new_scale { post_event(sender, Event::ChangePreviewSize(new_scale)); } } pub fn preview_larger(sender: &Sender, settings: &Settings, value: Option) { let new_scale = match value { None => settings.scale().larger(), Some(value) => settings.scale().larger_by(value), }; if let Some(new_scale) = new_scale { post_event(sender, Event::ChangePreviewSize(new_scale)); } } pub fn preview_fit_screen(sender: &Sender) { let new_scale = PreviewSize::BestFit(0, 0); post_event(sender, Event::ChangePreviewSize(new_scale)); } pub fn image_edit( sender: &Sender, settings: &Settings, image_list: Rc>, file_list: &FileList, image_operation: ImageOperation, ) { let mut image_list = image_list.borrow_mut(); if let Some(mut current_image) = image_list.remove_current_image() { current_image = current_image.apply_operation(&image_operation); image_list.insert(file_list.current_file_path().unwrap(), current_image); post_event(sender, Event::RefreshPreview(settings.scale())); } } pub fn start_selection( widgets: &Widgets, image_list: Rc>, selection_coords: Rc>>, position: (u32, u32), ) { if image_list.borrow().current_image().is_some() { selection_coords.replace(Some((position, position))); widgets.image_widget().queue_draw(); } } pub fn drag_selection( widgets: &Widgets, image_list: Rc>, selection_coords: Rc>>, position: (u32, u32), ) { if let Some(((start_position_x, start_position_y), (_, _))) = selection_coords.get() { if let Some(current_image) = image_list.borrow().current_image() { let (position_x, position_y) = position; let (image_width, image_height) = current_image.preview_image_buffer_size().unwrap(); if position_x >= image_width || position_y >= image_height { return; } selection_coords.replace(Some(((start_position_x, start_position_y), position))); widgets.image_widget().queue_draw(); } } } pub fn end_selection( sender: &Sender, widgets: &Widgets, image_list: Rc>, selection_coords: Rc>>, ) { if let Some(selection_coords) = selection_coords.take() { if let Some(current_image) = image_list.borrow().current_image() { let crop_operation = ImageOperation::Crop( current_image .preview_coords_to_image_coords(selection_coords) .unwrap(), ); post_event(sender, Event::ImageEdit(crop_operation)); widgets.image_widget().queue_draw(); widgets.crop_button().set_active(false); } } } pub fn resize_popover_displayed(widgets: &Widgets, image_list: Rc>) { if let Some(current_image) = image_list.borrow().current_image() { let (image_width, image_height) = current_image.image_size().unwrap(); widgets.width_spin_button().set_value(image_width as f64); widgets.height_spin_button().set_value(image_height as f64); } } pub fn update_resize_popover_width(widgets: &Widgets, image_list: Rc>) { if let Some(current_image) = image_list.borrow().current_image() { let aspect_ratio = current_image.image_aspect_ratio().unwrap(); widgets .width_spin_button() .set_value(widgets.height_spin_button().value() * aspect_ratio); } } pub fn update_resize_popover_height(widgets: &Widgets, image_list: Rc>) { if let Some(current_image) = image_list.borrow().current_image() { let aspect_ratio = current_image.image_aspect_ratio().unwrap(); widgets .height_spin_button() .set_value(widgets.width_spin_button().value() / aspect_ratio); } } pub fn save_current_image( sender: &Sender, image_list: Rc>, filename: Option, ) { if let Err(error) = image_list.borrow_mut().save_current_image(filename) { post_event( sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ); } } pub fn delete_current_image( sender: &Sender, file_list: &mut FileList, image_list: Rc>, ) { match file_list.delete_current_file() { Ok(image_path) => { image_list.borrow_mut().remove(image_path.as_path()); post_event( sender, Event::DisplayMessage( format!( "Image {} was moved to trash", image_path .file_name() .and_then(|file_name| file_name.to_str()) .unwrap_or_default() ), MessageType::Info, ), ) } Err(error) => post_event( sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ), } } pub fn print(sender: &Sender, widgets: &Widgets, image_list: Rc>) { let print_operation = gtk::PrintOperation::new(); print_operation.connect_begin_print(move |print_operation, _| { print_operation.set_n_pages(1); }); let cloned_sender = sender.clone(); print_operation.connect_draw_page(move |_, print_context, _| { if let Some(print_image_buffer) = image_list .borrow() .current_image() .and_then(|current_image| { current_image.create_print_image_buffer( print_context.width() as u32, print_context.height() as u32, ) }) { let cairo_context = print_context.cairo_context(); cairo_context.set_source_pixbuf( &print_image_buffer, (print_context.width() - print_image_buffer.width() as f64) / 2.0, (print_context.height() - print_image_buffer.height() as f64) / 2.0, ); if let Err(error) = cairo_context.paint() { post_event( &cloned_sender, Event::DisplayMessage( format!("Couldn't print current image: {}", error), MessageType::Error, ), ); } } }); print_operation.set_allow_async(true); if let Err(error) = print_operation.run( gtk::PrintOperationAction::PrintDialog, Option::from(widgets.window()), ) { post_event( sender, Event::DisplayMessage( format!("Couldn't print current image: {}", error), MessageType::Error, ), ); }; } pub fn undo_operation( sender: &Sender, settings: &Settings, image_list: Rc>, ) { if let Some(current_image) = image_list.borrow_mut().current_image_mut() { current_image.undo_operation(); post_event(sender, Event::RefreshPreview(settings.scale())); } } pub fn redo_operation( sender: &Sender, settings: &Settings, image_list: Rc>, ) { if let Some(current_image) = image_list.borrow_mut().current_image_mut() { current_image.redo_operation(); post_event(sender, Event::RefreshPreview(settings.scale())); } } pub fn display_message(widgets: &Widgets, message: &str, message_type: gtk::MessageType) { match message_type { MessageType::Error => error!("{}", message), MessageType::Warning => warn!("{}", message), MessageType::Info => info!("{}", message), _ => info!("{}", message), }; widgets.info_bar().set_message_type(message_type); widgets.info_bar_text().set_text(message); widgets.info_bar().set_revealed(true); let main_context = glib::MainContext::default(); let info_bar = widgets.info_bar().clone(); main_context.spawn_local(async move { timeout_future_seconds(5).await; info_bar.set_revealed(false); }); } pub fn hide_info_panel(widgets: &Widgets) { if widgets.info_bar().message_type() != gtk::MessageType::Info && widgets.info_bar().message_type() != gtk::MessageType::Warning { widgets.info_bar().set_revealed(false); } } pub fn toggle_fullscreen(widgets: &Widgets, settings: &mut Settings) { if !settings.fullscreen() { widgets.window().fullscreen(); settings.set_fullscreen(true); } else { widgets.window().unfullscreen(); settings.set_fullscreen(false); } } pub fn quit(application: >k::Application) { application .windows() .iter() .for_each(|window| window.close()); } #[cfg(feature = "wallpaper")] pub fn set_as_wallpaper(sender: &Sender, file_list: &FileList) { if let Some(current_file_uri) = file_list.current_file_uri() { let sender = sender.clone(); let main_context = glib::MainContext::default(); main_context.spawn_local(async move { if let Err(error) = wallpaper::set_from_uri( &WindowIdentifier::default(), current_file_uri.as_str(), true, SetOn::Background, ) .await { post_event( &sender, Event::DisplayMessage(error.to_string(), MessageType::Error), ); } }); } } #[cfg(not(feature = "wallpaper"))] pub fn set_as_wallpaper(_sender: &Sender, _file_list: &FileList) { error!("This program was built without the wallpaper feature"); } pub fn copy_current_image(image_list: Rc>) { let display = gdk::Display::default().unwrap(); image_list.borrow().copy_current_image(display.clipboard()); } pub fn start_zoom_gesture(settings: &mut Settings) { settings.set_scale_before_zoom_gesture(Some(settings.scale())); } pub fn change_scale_on_zoom_gesture(sender: &Sender, settings: &Settings, zoom_scale: f64) { if let Some(scale_before_zoom_gesture) = settings.scale_before_zoom_gesture() { let new_preview_size = match scale_before_zoom_gesture { PreviewSize::BestFit(_, _) | PreviewSize::OriginalSize => { PreviewSize::Resized((zoom_scale * 100.0) as u32) } PreviewSize::Resized(old_scale) => { PreviewSize::Resized((old_scale as f64 * zoom_scale) as u32) } }; post_event(sender, Event::ChangePreviewSize(new_preview_size)); } } pub fn update_buttons_state( widgets: &Widgets, file_list: &FileList, image_list: Rc>, settings: &Settings, ) { let previous_next_active = file_list.len() > 1; widgets.next_button().set_sensitive(previous_next_active); widgets .previous_button() .set_sensitive(previous_next_active); let buttons_active = if let Some(current_image) = image_list.borrow().current_image() { widgets .undo_button() .set_sensitive(current_image.can_undo_operation()); widgets .redo_button() .set_sensitive(current_image.can_redo_operation()); widgets .save_menu_button() .set_sensitive(current_image.has_operations()); true } else { widgets.undo_button().set_sensitive(false); widgets.redo_button().set_sensitive(false); widgets.save_menu_button().set_sensitive(false); false }; widgets .rotate_counterclockwise_button() .set_sensitive(buttons_active); widgets .rotate_clockwise_button() .set_sensitive(buttons_active); widgets.crop_button().set_sensitive(buttons_active); widgets.resize_button().set_sensitive(buttons_active); widgets.print_menu_button().set_sensitive(buttons_active); widgets.save_as_menu_button().set_sensitive(buttons_active); widgets.delete_button().set_sensitive(buttons_active); #[cfg(feature = "wallpaper")] widgets .set_as_wallpaper_menu_button() .set_sensitive(buttons_active); #[cfg(not(feature = "wallpaper"))] widgets.set_as_wallpaper_menu_button().set_sensitive(false); widgets.copy_menu_button().set_sensitive(buttons_active); widgets .preview_smaller_button() .set_sensitive(settings.scale().can_be_smaller()); widgets .preview_larger_button() .set_sensitive(settings.scale().can_be_larger()); } ================================================ FILE: src/ui/controllers.rs ================================================ use gtk::EventControllerScrollFlags; #[derive(Clone)] pub struct Controllers { window_key_event_controller: gtk::EventControllerKey, image_click_gesture: gtk::GestureClick, image_motion_event_controller: gtk::EventControllerMotion, image_zoom_gesture: gtk::GestureZoom, image_scrolled_window_scroll_controller: gtk::EventControllerScroll, } impl Controllers { pub fn init() -> Self { Self { window_key_event_controller: gtk::EventControllerKey::new(), image_click_gesture: gtk::GestureClick::new(), image_motion_event_controller: gtk::EventControllerMotion::new(), image_zoom_gesture: gtk::GestureZoom::new(), image_scrolled_window_scroll_controller: gtk::EventControllerScroll::new( EventControllerScrollFlags::BOTH_AXES, ), } } pub fn image_click_gesture(&self) -> >k::GestureClick { &self.image_click_gesture } pub fn image_motion_event_controller(&self) -> >k::EventControllerMotion { &self.image_motion_event_controller } pub fn image_zoom_gesture(&self) -> >k::GestureZoom { &self.image_zoom_gesture } pub fn window_key_event_controller(&self) -> >k::EventControllerKey { &self.window_key_event_controller } pub fn image_scrolled_window_scroll_controller(&self) -> >k::EventControllerScroll { &self.image_scrolled_window_scroll_controller } } ================================================ FILE: src/ui/event.rs ================================================ use gtk::{ gdk::{self, Key}, gdk_pixbuf::PixbufRotation, gio, glib::{self, timeout_future, Sender}, prelude::{ ButtonExt, DrawingAreaExtManual, FileChooserExt, FileExt, GdkCairoContextExt, NativeDialogExt, PopoverExt, ToggleButtonExt, WidgetExt, }, traits::{GestureExt, GestureSingleExt, GtkWindowExt}, MessageType, Window, }; use std::{ cell::{Cell, RefCell}, path::PathBuf, rc::Rc, time::Duration, }; use crate::{ image::{CoordinatesPair, PreviewSize}, image_list::ImageList, image_operation::ImageOperation, settings::Settings, }; use super::{controllers::Controllers, widgets::Widgets}; #[derive(Debug)] pub enum Event { OpenFile(gio::File), LoadImage(Option), ImageViewportResize((u32, u32)), RefreshPreview(PreviewSize), ChangePreviewSize(PreviewSize), ImageEdit(ImageOperation), StartSelection((u32, u32)), DragSelection((u32, u32)), SaveCurrentImage(Option), DeleteCurrentImage, EndSelection, StartZoomGesture, ZoomGestureScaleChanged(f64), PreviewSmaller(Option), PreviewLarger(Option), PreviewFitScreen, NextImage, PreviousImage, RefreshFileList, ResizePopoverDisplayed, UpdateResizePopoverWidth, UpdateResizePopoverHeight, UndoOperation, RedoOperation, Print, DisplayMessage(String, gtk::MessageType), HideInfoPanel, ToggleFullscreen, CopyCurrentImage, Quit, SetAsWallpaper, } pub fn post_event(sender: &glib::Sender, action: Event) { if let Err(err) = sender.send(action) { error!("Send error: {}", err); } } pub fn connect_events( widgets: Widgets, sender: Sender, image_list: Rc>, selection_coords: Rc>>, settings: Settings, ) { connect_open_menu_button_clicked(widgets.clone(), sender.clone()); connect_next_button_clicked(widgets.clone(), sender.clone()); connect_previous_button_clicked(widgets.clone(), sender.clone()); connect_window_default_width_notify(widgets.clone(), settings.clone(), sender.clone()); connect_window_default_height_notify(widgets.clone(), settings, sender.clone()); connect_window_maximized_notify(widgets.clone(), sender.clone()); connect_window_fullscreened_notify(widgets.clone(), sender.clone()); connect_preview_smaller_button_clicked(widgets.clone(), sender.clone()); connect_preview_larger_button_clicked(widgets.clone(), sender.clone()); connect_preview_fit_screen_button_clicked(widgets.clone(), sender.clone()); connect_rotate_counterclockwise_button_clicked(widgets.clone(), sender.clone()); connect_rotate_clockwise_button_clicked(widgets.clone(), sender.clone()); connect_image_widget_draw(widgets.clone(), image_list.clone(), selection_coords); connect_resize_button_activated(widgets.clone(), sender.clone()); connect_width_spin_button_value_changed(widgets.clone(), sender.clone()); connect_height_spin_button_value_changed(widgets.clone(), sender.clone()); connect_apply_resize_button_clicked(widgets.clone(), sender.clone()); connect_save_menu_button_clicked(widgets.clone(), sender.clone()); connect_print_menu_button_clicked(widgets.clone(), sender.clone()); connect_undo_button_clicked(widgets.clone(), sender.clone()); connect_redo_button_clicked(widgets.clone(), sender.clone()); connect_save_as_menu_button_clicked(widgets.clone(), image_list, sender.clone()); connect_delete_button_clicked(widgets.clone(), sender.clone()); connect_info_bar_response(widgets.clone()); connect_set_as_wallpaper_menu_button_clicked(widgets.clone(), sender.clone()); connect_copy_menu_button_clicked(widgets.clone(), sender); widgets.window().present(); } pub fn connect_controllers(sender: Sender, widgets: Widgets, controllers: Controllers) { controllers .image_click_gesture() .set_button(gtk::gdk::BUTTON_PRIMARY); connect_controllers_to_widgets(widgets.clone(), controllers.clone()); connect_keybinds(controllers.clone(), widgets, sender.clone()); connect_image_click_pressed_gesture(controllers.clone(), sender.clone()); connect_image_motion_event_controller_motion(controllers.clone(), sender.clone()); connect_image_click_released_gesture(controllers.clone(), sender.clone()); connect_zoom_gesture_begin(controllers.clone(), sender.clone()); connect_zoom_gesture_scale_changed(controllers.clone(), sender.clone()); connect_image_scrolled_window_scroll_controller_scroll(controllers, sender); } fn connect_controllers_to_widgets(widgets: Widgets, controllers: Controllers) { widgets .window() .add_controller(controllers.window_key_event_controller()); widgets .image_widget() .add_controller(controllers.image_click_gesture()); widgets .image_widget() .add_controller(controllers.image_motion_event_controller()); widgets .image_widget() .add_controller(controllers.image_zoom_gesture()); widgets .image_scrolled_window() .add_controller(controllers.image_scrolled_window_scroll_controller()); } pub fn connect_keybinds(controllers: Controllers, widgets: Widgets, sender: Sender) { controllers .window_key_event_controller() .connect_key_pressed(move |_, key, _, state| { match key { Key::F11 => post_event(&sender, Event::ToggleFullscreen), Key::Left | Key::h => { if widgets.previous_button().is_sensitive() { widgets.previous_button().emit_clicked(); } } Key::Right | Key::l => { if widgets.next_button().is_sensitive() { widgets.next_button().emit_clicked(); } } Key::minus | Key::KP_Subtract => { if widgets.preview_smaller_button().is_sensitive() { widgets.preview_smaller_button().emit_clicked(); } } Key::plus | Key::KP_Add => { if widgets.preview_larger_button().is_sensitive() { widgets.preview_larger_button().emit_clicked(); } } Key::f => { if widgets.preview_fit_screen_button().is_sensitive() { widgets.preview_fit_screen_button().emit_clicked(); } } Key::Delete => { if widgets.delete_button().is_sensitive() { widgets.delete_button().emit_clicked(); } } Key::S if state == (gdk::ModifierType::SHIFT_MASK | gdk::ModifierType::CONTROL_MASK) => { if widgets.save_as_menu_button().is_sensitive() { widgets.save_as_menu_button().emit_clicked(); } } Key::R if state == (gdk::ModifierType::SHIFT_MASK | gdk::ModifierType::CONTROL_MASK) => { if widgets.rotate_counterclockwise_button().is_sensitive() { widgets.rotate_counterclockwise_button().emit_clicked(); } } Key::C if state == gdk::ModifierType::SHIFT_MASK => { if widgets.crop_button().is_sensitive() { widgets.crop_button().emit_clicked(); } } Key::S if state == gdk::ModifierType::SHIFT_MASK => { if widgets.resize_button().is_sensitive() { widgets.resize_button().emit_activate(); } } Key::q if state == gdk::ModifierType::CONTROL_MASK => { post_event(&sender, Event::Quit) } Key::o if state == gdk::ModifierType::CONTROL_MASK => { widgets.open_menu_button().emit_clicked(); } Key::s if state == gdk::ModifierType::CONTROL_MASK => { if widgets.save_menu_button().is_sensitive() { widgets.save_menu_button().emit_clicked(); } } Key::c if state == gdk::ModifierType::CONTROL_MASK => { if widgets.copy_menu_button().is_sensitive() { widgets.copy_menu_button().emit_clicked(); } } Key::p if state == gdk::ModifierType::CONTROL_MASK => { if widgets.print_menu_button().is_sensitive() { widgets.print_menu_button().emit_clicked(); } } Key::z if state == gdk::ModifierType::CONTROL_MASK => { if widgets.undo_button().is_sensitive() { widgets.undo_button().emit_clicked(); } } Key::y if state == gdk::ModifierType::CONTROL_MASK => { if widgets.redo_button().is_sensitive() { widgets.redo_button().emit_clicked(); } } Key::r if state == gdk::ModifierType::CONTROL_MASK => { if widgets.rotate_clockwise_button().is_sensitive() { widgets.rotate_clockwise_button().emit_clicked(); } } Key::j if state == gdk::ModifierType::CONTROL_MASK => { if widgets.preview_smaller_button().is_sensitive() { widgets.preview_smaller_button().emit_clicked(); } } Key::k if state == gdk::ModifierType::CONTROL_MASK => { if widgets.preview_larger_button().is_sensitive() { widgets.preview_larger_button().emit_clicked(); } } _ => {} } gtk::Inhibit(false) }); } fn connect_open_menu_button_clicked(widgets: Widgets, sender: Sender) { widgets .clone() .open_menu_button() .connect_clicked(move |_| { widgets.popover_menu().popdown(); let file_chooser = gtk::FileChooserNative::new( Some("Open file"), gtk::Window::NONE, gtk::FileChooserAction::Open, None, None, ); file_chooser.set_transient_for(Some(widgets.window())); let file_filter = gtk::FileFilter::new(); file_filter.add_mime_type("image/*"); file_filter.set_name(Some("Image")); file_chooser.add_filter(&file_filter); let sender = sender.clone(); file_chooser.connect_response(move |file_chooser, response| { if response == gtk::ResponseType::Accept { let file = if let Some(file) = file_chooser.file() { file } else { post_event( &sender, Event::DisplayMessage( String::from("Couldn't load file"), MessageType::Error, ), ); return; }; post_event(&sender, Event::OpenFile(file)); } file_chooser.destroy(); }); file_chooser.show(); widgets.file_chooser().replace(Some(file_chooser)); }); } fn connect_next_button_clicked(widgets: Widgets, sender: Sender) { widgets.next_button().connect_clicked(move |_| { post_event(&sender, Event::NextImage); }); } fn connect_previous_button_clicked(widgets: Widgets, sender: Sender) { widgets.previous_button().connect_clicked(move |_| { post_event(&sender, Event::PreviousImage); }); } fn connect_window_default_width_notify( widgets: Widgets, settings: Settings, sender: Sender, ) { widgets .clone() .window() .connect_default_width_notify(move |window| { settings.set_window_size((window.width() as u32, window.height() as u32)); post_event( &sender, Event::ImageViewportResize(( widgets.image_viewport().allocation().width() as u32, widgets.image_viewport().allocation().height() as u32, )), ); }); } fn connect_window_default_height_notify( widgets: Widgets, settings: Settings, sender: Sender, ) { widgets .clone() .window() .connect_default_height_notify(move |window| { settings.set_window_size((window.width() as u32, window.height() as u32)); post_event( &sender, Event::ImageViewportResize(( widgets.image_viewport().allocation().width() as u32, widgets.image_viewport().allocation().height() as u32, )), ); }); } fn connect_window_fullscreened_notify(widgets: Widgets, sender: Sender) { widgets .clone() .window() .connect_fullscreened_notify(move |_| { let main_context = glib::MainContext::default(); let sender = sender.clone(); let widgets = widgets.clone(); main_context.spawn_local(async move { timeout_future(Duration::from_millis(5)).await; post_event( &sender, Event::ImageViewportResize(( widgets.image_viewport().allocation().width() as u32, widgets.image_viewport().allocation().height() as u32, )), ); }); }); } fn connect_window_maximized_notify(widgets: Widgets, sender: Sender) { widgets.clone().window().connect_maximized_notify(move |_| { let main_context = glib::MainContext::default(); let sender = sender.clone(); let widgets = widgets.clone(); main_context.spawn_local(async move { timeout_future(Duration::from_millis(5)).await; post_event( &sender, Event::ImageViewportResize(( widgets.image_viewport().allocation().width() as u32, widgets.image_viewport().allocation().height() as u32, )), ); }); }); } fn connect_preview_smaller_button_clicked(widgets: Widgets, sender: Sender) { widgets.preview_smaller_button().connect_clicked(move |_| { post_event(&sender, Event::PreviewSmaller(None)); }); } fn connect_preview_larger_button_clicked(widgets: Widgets, sender: Sender) { widgets.preview_larger_button().connect_clicked(move |_| { post_event(&sender, Event::PreviewLarger(None)); }); } fn connect_preview_fit_screen_button_clicked(widgets: Widgets, sender: Sender) { widgets .preview_fit_screen_button() .connect_clicked(move |_| { post_event(&sender, Event::PreviewFitScreen); }); } fn connect_rotate_counterclockwise_button_clicked(widgets: Widgets, sender: Sender) { widgets .rotate_counterclockwise_button() .connect_clicked(move |_| { post_event( &sender, Event::ImageEdit(ImageOperation::Rotate(PixbufRotation::Counterclockwise)), ); }); } fn connect_rotate_clockwise_button_clicked(widgets: Widgets, sender: Sender) { widgets.rotate_clockwise_button().connect_clicked(move |_| { post_event( &sender, Event::ImageEdit(ImageOperation::Rotate(PixbufRotation::Clockwise)), ); }); } fn connect_image_click_pressed_gesture(controllers: Controllers, sender: Sender) { controllers .image_click_gesture() .connect_pressed(move |_, _, x, y| { post_event(&sender, Event::StartSelection((x as u32, y as u32))); }); } fn connect_image_motion_event_controller_motion(controllers: Controllers, sender: Sender) { controllers .image_motion_event_controller() .connect_motion(move |_, x, y| { post_event(&sender, Event::DragSelection((x as u32, y as u32))); }); } fn connect_image_click_released_gesture(controllers: Controllers, sender: Sender) { controllers .image_click_gesture() .connect_released(move |_, _, _, _| { post_event(&sender, Event::EndSelection); }); } fn connect_image_widget_draw( widgets: Widgets, image_list: Rc>, selection_coords: Rc>>, ) { widgets .image_widget() .set_draw_func(move |_, cairo_context, _, _| { if let Some(current_image) = image_list.borrow().current_image() { if let Some(image_buffer) = current_image.preview_image_buffer() { cairo_context.set_source_pixbuf(image_buffer, 0.0, 0.0); if let Err(error) = cairo_context.paint() { error!("{}", error); return; } if let Some(( (start_selection_coord_x, start_selection_coord_y), (end_selection_coord_x, end_selection_coord_y), )) = selection_coords.get() { cairo_context.set_source_rgb(0.0, 0.0, 0.0); cairo_context.set_line_width(1.0); cairo_context.rectangle( start_selection_coord_x as f64, start_selection_coord_y as f64, (end_selection_coord_x as i32 - start_selection_coord_x as i32) as f64, (end_selection_coord_y as i32 - start_selection_coord_y as i32) as f64, ); if let Err(error) = cairo_context.stroke() { error!("{}", error); } } } } }); } fn connect_resize_button_activated(widgets: Widgets, sender: Sender) { widgets.resize_button().connect_activate(move |_| { post_event(&sender, Event::ResizePopoverDisplayed); }); } fn connect_width_spin_button_value_changed(widgets: Widgets, sender: Sender) { widgets .clone() .width_spin_button() .connect_value_changed(move |_| { if widgets.link_aspect_ratio_button().is_active() { post_event(&sender, Event::UpdateResizePopoverHeight); } }); } fn connect_height_spin_button_value_changed(widgets: Widgets, sender: Sender) { widgets .clone() .height_spin_button() .connect_value_changed(move |_| { if widgets.link_aspect_ratio_button().is_active() { post_event(&sender, Event::UpdateResizePopoverWidth); } }); } fn connect_apply_resize_button_clicked(widgets: Widgets, sender: Sender) { widgets .clone() .apply_resize_button() .connect_clicked(move |_| { post_event( &sender, Event::ImageEdit(ImageOperation::Resize(( widgets.width_spin_button().value() as u32, widgets.height_spin_button().value() as u32, ))), ); widgets.resize_button().popdown(); }); } fn connect_save_menu_button_clicked(widgets: Widgets, sender: Sender) { widgets .clone() .save_menu_button() .connect_clicked(move |_| { widgets.popover_menu().popdown(); post_event(&sender, Event::SaveCurrentImage(None)); }); } fn connect_save_as_menu_button_clicked( widgets: Widgets, image_list: Rc>, sender: Sender, ) { widgets .clone() .save_as_menu_button() .connect_clicked(move |_| { widgets.popover_menu().popdown(); let file_chooser = gtk::FileChooserNative::new( Some("Save as..."), >::None, gtk::FileChooserAction::Save, None, None, ); file_chooser.set_transient_for(Some(widgets.window())); if let Some(file_path) = image_list.borrow().current_image_path() { if let Err(error) = file_chooser.set_file(&gio::File::for_path(file_path)) { post_event( &sender, Event::DisplayMessage(error.to_string(), MessageType::Warning), ); } } let file_filter = gtk::FileFilter::new(); file_filter.add_mime_type("image/*"); file_filter.set_name(Some("Image")); file_chooser.add_filter(&file_filter); let sender = sender.clone(); file_chooser.connect_response(move |file_chooser, response| { if response == gtk::ResponseType::Accept { let file = if let Some(file) = file_chooser.file() { file } else { post_event( &sender, Event::DisplayMessage( String::from("Couldn't save file"), MessageType::Error, ), ); return; }; post_event(&sender, Event::SaveCurrentImage(Some(file.path().unwrap()))); } file_chooser.destroy(); }); file_chooser.show(); widgets.file_chooser().replace(Some(file_chooser)); }); } fn connect_print_menu_button_clicked(widgets: Widgets, sender: Sender) { widgets .clone() .print_menu_button() .connect_clicked(move |_| { widgets.popover_menu().popdown(); post_event(&sender, Event::Print); }); } fn connect_undo_button_clicked(widgets: Widgets, sender: Sender) { widgets.undo_button().connect_clicked(move |_| { post_event(&sender, Event::UndoOperation); }); } fn connect_redo_button_clicked(widgets: Widgets, sender: Sender) { widgets.redo_button().connect_clicked(move |_| { post_event(&sender, Event::RedoOperation); }); } fn connect_delete_button_clicked(widgets: Widgets, sender: Sender) { widgets.delete_button().connect_clicked(move |_| { post_event(&sender, Event::DeleteCurrentImage); }); } fn connect_info_bar_response(widgets: Widgets) { widgets.info_bar().connect_response(|info_bar, response| { if response == gtk::ResponseType::Close { info_bar.set_revealed(false); } }); } fn connect_image_scrolled_window_scroll_controller_scroll( controllers: Controllers, sender: Sender, ) { controllers .image_scrolled_window_scroll_controller() .connect_scroll(move |_, _, y| { if y < 0.0 { post_event(&sender, Event::PreviewLarger(Some(5))); } if y > 0.0 { post_event(&sender, Event::PreviewSmaller(Some(5))); } gtk::Inhibit(true) }); } fn connect_set_as_wallpaper_menu_button_clicked(widgets: Widgets, sender: Sender) { widgets .set_as_wallpaper_menu_button() .connect_clicked(move |_| { post_event(&sender, Event::SetAsWallpaper); }); } fn connect_copy_menu_button_clicked(widgets: Widgets, sender: Sender) { widgets .clone() .copy_menu_button() .connect_clicked(move |_| { widgets.popover_menu().popdown(); post_event(&sender, Event::CopyCurrentImage); }); } fn connect_zoom_gesture_begin(controllers: Controllers, sender: Sender) { controllers.image_zoom_gesture().connect_begin(move |_, _| { post_event(&sender, Event::StartZoomGesture); }); } fn connect_zoom_gesture_scale_changed(controllers: Controllers, sender: Sender) { controllers .image_zoom_gesture() .connect_scale_changed(move |_, scale| { post_event(&sender, Event::ZoomGestureScaleChanged(scale)); }); } ================================================ FILE: src/ui/widgets.rs ================================================ use std::cell::RefCell; use gtk::{ prelude::{GtkWindowExt, WidgetExt}, ApplicationWindow, Builder, }; #[derive(Clone)] pub struct Widgets { window: ApplicationWindow, open_menu_button: gtk::Button, image_widget: gtk::DrawingArea, popover_menu: gtk::PopoverMenu, next_button: gtk::Button, previous_button: gtk::Button, preview_smaller_button: gtk::Button, preview_larger_button: gtk::Button, image_scrolled_window: gtk::ScrolledWindow, image_viewport: gtk::Viewport, preview_size_label: gtk::Label, rotate_counterclockwise_button: gtk::Button, rotate_clockwise_button: gtk::Button, crop_button: gtk::ToggleButton, resize_button: gtk::MenuButton, width_spin_button: gtk::SpinButton, height_spin_button: gtk::SpinButton, link_aspect_ratio_button: gtk::ToggleButton, apply_resize_button: gtk::Button, info_bar: gtk::InfoBar, info_bar_text: gtk::Label, save_menu_button: gtk::Button, print_menu_button: gtk::Button, undo_button: gtk::Button, redo_button: gtk::Button, save_as_menu_button: gtk::Button, preview_fit_screen_button: gtk::Button, delete_button: gtk::Button, copy_menu_button: gtk::Button, set_as_wallpaper_menu_button: gtk::Button, file_chooser: RefCell>, } impl Widgets { pub fn init(builder: Builder, application: >k::Application) -> Self { let window: ApplicationWindow = builder .object("main_window") .expect("Couldn't get main_window"); window.set_application(Some(application)); let open_menu_button: gtk::Button = builder .object("open_menu_button") .expect("Couldn't get open_menu_button"); let image_widget: gtk::DrawingArea = builder .object("image_widget") .expect("Couldn't get image_widget"); let popover_menu: gtk::PopoverMenu = builder .object("popover_menu") .expect("Couldn't get popover_menu"); let next_button: gtk::Button = builder .object("next_button") .expect("Couldn't get next_button"); let previous_button: gtk::Button = builder .object("previous_button") .expect("Couldn't get previous_button"); let preview_smaller_button: gtk::Button = builder .object("preview_smaller_button") .expect("Couldn't get preview_smaller_button"); let preview_larger_button: gtk::Button = builder .object("preview_larger_button") .expect("Couldn't get preview_larger_button"); let image_scrolled_window: gtk::ScrolledWindow = builder .object("image_scrolled_window") .expect("Couldn't get image_scrolled_window"); let image_viewport: gtk::Viewport = builder .object("image_viewport") .expect("Couldn't get image_viewport"); let preview_size_label: gtk::Label = builder .object("preview_size_label") .expect("Couldn't get preview_size_label"); let rotate_counterclockwise_button: gtk::Button = builder .object("rotate_counterclockwise_button") .expect("Couldn't get rotate_counterclockwise_button"); let rotate_clockwise_button: gtk::Button = builder .object("rotate_clockwise_button") .expect("Couldn't get rotate_clockwise_button"); let crop_button: gtk::ToggleButton = builder .object("crop_button") .expect("Couldn't get crop_button"); let resize_button: gtk::MenuButton = builder .object("resize_button") .expect("Couldn't get resize_button"); resize_button.set_sensitive(false); let width_spin_button: gtk::SpinButton = builder .object("width_spin_button") .expect("Couldn't get width_spin_button"); let height_spin_button: gtk::SpinButton = builder .object("height_spin_button") .expect("Couldn't get height_spin_button"); let link_aspect_ratio_button: gtk::ToggleButton = builder .object("link_aspect_ratio_button") .expect("Couldn't get link_aspect_ratio_button"); let apply_resize_button: gtk::Button = builder .object("apply_resize_button") .expect("Couldn't get apply_resize_button"); let error_info_bar: gtk::InfoBar = builder .object("error_info_bar") .expect("Couldn't get error_info_bar"); let error_info_bar_text: gtk::Label = builder .object("error_info_bar_text") .expect("Couldn't get error_info_bar_text"); let save_menu_button: gtk::Button = builder .object("save_menu_button") .expect("Couldn't get save_menu_button"); let print_menu_button: gtk::Button = builder .object("print_menu_button") .expect("Couldn't get print_menu_button"); let undo_button: gtk::Button = builder .object("undo_button") .expect("Couldn't get undo_button"); let redo_button: gtk::Button = builder .object("redo_button") .expect("Couldn't get redo_button"); let save_as_menu_button: gtk::Button = builder .object("save_as_menu_button") .expect("Couldn't get save_as_menu_button"); let preview_fit_screen_button: gtk::Button = builder .object("preview_fit_screen_button") .expect("Couldn't get preview_fit_screen_button"); let delete_button: gtk::Button = builder .object("delete_button") .expect("Couldn't get delete_button"); delete_button.add_css_class("destructive-action"); let copy_menu_button: gtk::Button = builder .object("copy_menu_button") .expect("Couldn't get copy_menu_button"); let set_as_wallpaper_menu_button: gtk::Button = builder .object("set_as_wallpaper_menu_button") .expect("Couldn't get set_as_wallpaper_menu_button"); Self { window, open_menu_button, image_widget, popover_menu, next_button, previous_button, preview_smaller_button, preview_larger_button, image_scrolled_window, image_viewport, preview_size_label, rotate_counterclockwise_button, rotate_clockwise_button, crop_button, resize_button, width_spin_button, height_spin_button, link_aspect_ratio_button, apply_resize_button, info_bar: error_info_bar, info_bar_text: error_info_bar_text, save_menu_button, print_menu_button, undo_button, redo_button, save_as_menu_button, preview_fit_screen_button, delete_button, copy_menu_button, set_as_wallpaper_menu_button, file_chooser: RefCell::new(None), } } /// Get a reference to the widgets's window. pub fn window(&self) -> &ApplicationWindow { &self.window } /// Get a reference to the widgets's open menu button. pub fn open_menu_button(&self) -> >k::Button { &self.open_menu_button } /// Get a reference to the widgets's image widget. pub fn image_widget(&self) -> >k::DrawingArea { &self.image_widget } /// Get a reference to the widgets's popover menu. pub fn popover_menu(&self) -> >k::PopoverMenu { &self.popover_menu } /// Get a reference to the widgets's next button. pub fn next_button(&self) -> >k::Button { &self.next_button } /// Get a reference to the widgets's previous button. pub fn previous_button(&self) -> >k::Button { &self.previous_button } /// Get a reference to the widgets's preview smaller button. pub fn preview_smaller_button(&self) -> >k::Button { &self.preview_smaller_button } /// Get a reference to the widgets's preview larger button. pub fn preview_larger_button(&self) -> >k::Button { &self.preview_larger_button } /// Get a reference to the widgets's image viewport. pub fn image_viewport(&self) -> >k::Viewport { &self.image_viewport } /// Get a reference to the widgets's rotate counterclockwise button. pub fn rotate_counterclockwise_button(&self) -> >k::Button { &self.rotate_counterclockwise_button } /// Get a reference to the widgets's rotate clockwise button. pub fn rotate_clockwise_button(&self) -> >k::Button { &self.rotate_clockwise_button } /// Get a reference to the widgets's crop button. pub fn crop_button(&self) -> >k::ToggleButton { &self.crop_button } /// Get a reference to the widgets's resize button. pub fn resize_button(&self) -> >k::MenuButton { &self.resize_button } /// Get a reference to the widgets's width spin button. pub fn width_spin_button(&self) -> >k::SpinButton { &self.width_spin_button } /// Get a reference to the widgets's height spin button. pub fn height_spin_button(&self) -> >k::SpinButton { &self.height_spin_button } /// Get a reference to the widgets's link aspect ratio button. pub fn link_aspect_ratio_button(&self) -> >k::ToggleButton { &self.link_aspect_ratio_button } /// Get a reference to the widgets's apply resize button. pub fn apply_resize_button(&self) -> >k::Button { &self.apply_resize_button } /// Get a reference to the widgets's error info bar. pub fn info_bar(&self) -> >k::InfoBar { &self.info_bar } /// Get a reference to the widgets's error info bar text. pub fn info_bar_text(&self) -> >k::Label { &self.info_bar_text } /// Get a reference to the widgets's save menu button. pub fn save_menu_button(&self) -> >k::Button { &self.save_menu_button } /// Get a reference to the widgets's print menu button. pub fn print_menu_button(&self) -> >k::Button { &self.print_menu_button } /// Get a reference to the widgets's undo button. pub fn undo_button(&self) -> >k::Button { &self.undo_button } /// Get a reference to the widgets's redo button. pub fn redo_button(&self) -> >k::Button { &self.redo_button } /// Get a reference to the widgets's save as menu button. pub fn save_as_menu_button(&self) -> >k::Button { &self.save_as_menu_button } /// Get a reference to the widgets's preview fit screen button. pub fn preview_fit_screen_button(&self) -> >k::Button { &self.preview_fit_screen_button } /// Get a reference to the widgets's delete button. pub fn delete_button(&self) -> >k::Button { &self.delete_button } /// Get a reference to the widgets's preview size label. pub fn preview_size_label(&self) -> >k::Label { &self.preview_size_label } /// Get a reference to the widgets's image scrolled window. pub fn image_scrolled_window(&self) -> >k::ScrolledWindow { &self.image_scrolled_window } /// Get a reference to the widgets's set as wallpaper menu button. pub fn set_as_wallpaper_menu_button(&self) -> >k::Button { &self.set_as_wallpaper_menu_button } /// Get a reference to the widget's copy menu button pub fn copy_menu_button(&self) -> >k::Button { &self.copy_menu_button } pub fn file_chooser(&self) -> &RefCell> { &self.file_chooser } } ================================================ FILE: src/ui.rs ================================================ pub mod action; pub mod controllers; pub mod event; pub mod widgets;