initial adding of song_model.rs
This commit is contained in:
Chris Cochrun
parent
9d05a7e655
commit
2311af3b46
3 changed files with 445 additions and 5 deletions
418
src/rust/song_model.rs
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418
src/rust/song_model.rs
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#[cxx_qt::bridge]
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mod song_model {
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use crate::models::*;
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use crate::schema::songs::dsl::*;
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use crate::song_model::song_model::Song;
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use diesel::sqlite::SqliteConnection;
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use diesel::{delete, insert_into, prelude::*, update};
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use std::path::{Path, PathBuf};
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unsafe extern "C++" {
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include!(< QAbstractListModel >);
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include!("cxx-qt-lib/qhash.h");
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type QHash_i32_QByteArray = cxx_qt_lib::QHash<cxx_qt_lib::QHashPair_i32_QByteArray>;
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include!("cxx-qt-lib/qmap.h");
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type QMap_QString_QVariant = cxx_qt_lib::QMap<cxx_qt_lib::QMapPair_QString_QVariant>;
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include!("cxx-qt-lib/qvariant.h");
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type QVariant = cxx_qt_lib::QVariant;
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include!("cxx-qt-lib/qstring.h");
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type QString = cxx_qt_lib::QString;
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include!("cxx-qt-lib/qurl.h");
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type QUrl = cxx_qt_lib::QUrl;
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include!("cxx-qt-lib/qmodelindex.h");
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type QModelIndex = cxx_qt_lib::QModelIndex;
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include!("cxx-qt-lib/qvector.h");
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type QVector_i32 = cxx_qt_lib::QVector<i32>;
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include!("cxx-qt-lib/qstringlist.h");
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type QStringList = cxx_qt_lib::QStringList;
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include!("cxx-qt-lib/qlist.h");
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type QList_QString = cxx_qt_lib::QList<QString>;
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}
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#[derive(Default, Clone, Debug)]
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pub struct Song {
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id: i32,
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title: QString,
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title: String,
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lyrics: String,
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author: String,
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ccli: String,
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audio: String,
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verse_order: String,
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background: String,
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background_type: String,
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horizontal_text_alignment: String,
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vertical_text_alignment: String,
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font: String,
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font_size: i32,
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}
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#[cxx_qt::qobject(base = "QAbstractListModel")]
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#[derive(Default, Debug)]
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pub struct SongModel {
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highest_id: i32,
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songs: Vec<self::Song>,
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}
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#[cxx_qt::qsignals(SongModel)]
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pub enum Signals<'a> {
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#[inherit]
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DataChanged {
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top_left: &'a QModelIndex,
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bottom_right: &'a QModelIndex,
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roles: &'a QVector_i32,
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},
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}
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enum Role {
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IdRole,
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TitleRole,
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LyricsRole,
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AuthorRole,
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CcliRole,
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AudioRole,
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VerseOrderRole,
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BackgroundRole,
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BackgroundTypeRole,
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HorizontalTextAlignmentRole,
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VerticalTextAlignmentRole,
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FontRole,
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FontSizeRole,
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}
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// use crate::entities::{songs, prelude::Songs};
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// use sea_orm::{ConnectionTrait, Database, DbBackend, DbErr, Statement, ActiveValue};
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impl qobject::SongModel {
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#[qinvokable]
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pub fn clear(mut self: Pin<&mut Self>) {
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unsafe {
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self.as_mut().begin_reset_model();
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self.as_mut().songs_mut().clear();
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self.as_mut().end_reset_model();
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}
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}
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#[qinvokable]
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pub fn test_database(mut self: Pin<&mut Self>) {
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let db = &mut self.as_mut().get_db();
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let results = songs
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.load::<crate::models::Song>(db)
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.expect("Error loading songs");
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self.as_mut().set_highest_id(0);
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println!("SHOWING SONGS");
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println!("--------------");
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for song in results {
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println!("{}", song.title);
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println!("{}", song.id);
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println!("{}", song.path);
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println!("--------------");
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if self.as_mut().highest_id() < &song.id {
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self.as_mut().set_highest_id(song.id);
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}
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let img = self::Song {
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id: song.id,
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title: QString::from(&song.title),
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path: QString::from(&song.path),
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};
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self.as_mut().add_song(img);
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}
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println!("--------------------------------------");
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println!("{:?}", self.as_mut().songs());
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println!("--------------------------------------");
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}
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#[qinvokable]
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pub fn remove_item(mut self: Pin<&mut Self>, index: i32) -> bool {
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if index < 0 || (index as usize) >= self.songs().len() {
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return false;
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}
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let db = &mut self.as_mut().get_db();
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let song_id = self.songs().get(index as usize).unwrap().id;
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let result = delete(songs.filter(id.eq(song_id))).execute(db);
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match result {
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Ok(_i) => {
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unsafe {
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self.as_mut()
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.begin_remove_rows(&QModelIndex::default(), index, index);
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self.as_mut().songs_mut().remove(index as usize);
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self.as_mut().end_remove_rows();
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}
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println!("removed-item-at-index: {:?}", song_id);
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println!("new-Vec: {:?}", self.as_mut().songs());
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true
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}
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Err(_e) => {
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println!("Cannot connect to database");
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false
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}
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}
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}
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fn get_db(self: Pin<&mut Self>) -> SqliteConnection {
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const DATABASE_URL: &str = "sqlite:///home/chris/.local/share/librepresenter/Libre Presenter/library-db.sqlite3";
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SqliteConnection::establish(DATABASE_URL)
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.unwrap_or_else(|_| panic!("error connecting to {}", DATABASE_URL))
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// self.rust().db = db;
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}
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#[qinvokable]
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pub fn new_item(mut self: Pin<&mut Self>, url: QUrl) {
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println!("LETS INSERT THIS SUCKER!");
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let file_path = PathBuf::from(url.path().to_string());
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let name = file_path.file_stem().unwrap().to_str().unwrap();
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let song_id = self.rust().highest_id + 1;
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let song_title = QString::from(name);
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let song_path = url.to_qstring();
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if self.as_mut().add_item(song_id, song_title, song_path) {
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println!("filename: {:?}", name);
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self.as_mut().set_highest_id(song_id);
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} else {
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println!("Error in inserting item");
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}
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}
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fn add_item(
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mut self: Pin<&mut Self>,
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song_id: i32,
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song_title: QString,
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song_path: QString,
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) -> bool {
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let db = &mut self.as_mut().get_db();
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// println!("{:?}", db);
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let song = self::Song {
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id: song_id,
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title: song_title.clone(),
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path: song_path.clone(),
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};
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println!("{:?}", song);
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let result = insert_into(songs)
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.values((
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id.eq(&song_id),
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title.eq(&song_title.to_string()),
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path.eq(&song_path.to_string()),
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))
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.execute(db);
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println!("{:?}", result);
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match result {
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Ok(_i) => {
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self.as_mut().add_song(song);
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println!("{:?}", self.as_mut().songs());
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true
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}
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Err(_e) => {
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println!("Cannot connect to database");
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false
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}
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}
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}
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fn add_song(mut self: Pin<&mut Self>, song: self::Song) {
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let index = self.as_ref().songs().len() as i32;
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println!("{:?}", song);
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unsafe {
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self.as_mut()
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.begin_insert_rows(&QModelIndex::default(), index, index);
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self.as_mut().songs_mut().push(song);
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self.as_mut().end_insert_rows();
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}
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}
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#[qinvokable]
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pub fn update_title(mut self: Pin<&mut Self>, index: i32, updated_title: QString) -> bool {
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let mut vector_roles = QVector_i32::default();
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vector_roles.append(self.as_ref().get_role(Role::TitleRole));
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let model_index = &self.as_ref().index(index, 0, &QModelIndex::default());
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let db = &mut self.as_mut().get_db();
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let result = update(songs.filter(id.eq(index)))
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.set(title.eq(updated_title.to_string()))
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.execute(db);
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match result {
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Ok(_i) => {
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let song = self.as_mut().songs_mut().get_mut(index as usize).unwrap();
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song.title = updated_title;
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self.as_mut()
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.emit_data_changed(model_index, model_index, &vector_roles);
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true
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}
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Err(_e) => false,
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}
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}
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#[qinvokable]
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pub fn update_file_path(
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mut self: Pin<&mut Self>,
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index: i32,
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updated_file_path: QString,
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) -> bool {
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let mut vector_roles = QVector_i32::default();
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vector_roles.append(self.as_ref().get_role(Role::PathRole));
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let model_index = &self.as_ref().index(index, 0, &QModelIndex::default());
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let db = &mut self.as_mut().get_db();
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let result = update(songs.filter(id.eq(index)))
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.set(path.eq(updated_file_path.to_string()))
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.execute(db);
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match result {
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Ok(_i) => {
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let song = self.as_mut().songs_mut().get_mut(index as usize).unwrap();
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song.path = updated_file_path;
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self.as_mut()
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.emit_data_changed(model_index, model_index, &vector_roles);
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true
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}
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Err(_e) => false,
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}
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}
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#[qinvokable]
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pub fn get_item(self: Pin<&mut Self>, index: i32) -> QMap_QString_QVariant {
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println!("{index}");
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let mut qvariantmap = QMap_QString_QVariant::default();
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let idx = self.index(index, 0, &QModelIndex::default());
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if !idx.is_valid() {
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return qvariantmap;
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}
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let role_names = self.as_ref().role_names();
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let role_names_iter = role_names.iter();
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if let Some(song) = self.rust().songs.get(index as usize) {
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for i in role_names_iter {
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qvariantmap.insert(
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QString::from(&i.1.to_string()),
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self.as_ref().data(&idx, *i.0),
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);
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}
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};
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qvariantmap
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}
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fn get_role(&self, role: Role) -> i32 {
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match role {
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Role::IdRole => 0,
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Role::TitleRole => 1,
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Role::LyricsRole => 2,
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Role::AuthorRole => 3,
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Role::CcliRole => 4,
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Role::AudioRole => 5,
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Role::VerseOrderRole => 6,
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Role::BackgroundRole => 7,
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Role::BackgroundTypeRole => 8,
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Role::HorizontalTextAlignmentRole => 9,
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Role::VerticalTextAlignmentRole => 10,
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Role::FontRole => 11,
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Role::FontSizeRole => 12,
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_ => 0,
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}
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}
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}
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// Create Rust bindings for C++ functions of the base class (QAbstractItemModel)
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#[cxx_qt::inherit]
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extern "C++" {
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unsafe fn begin_insert_rows(
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self: Pin<&mut qobject::SongModel>,
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parent: &QModelIndex,
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first: i32,
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last: i32,
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);
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unsafe fn end_insert_rows(self: Pin<&mut qobject::SongModel>);
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unsafe fn begin_remove_rows(
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self: Pin<&mut qobject::SongModel>,
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parent: &QModelIndex,
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first: i32,
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last: i32,
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);
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unsafe fn end_remove_rows(self: Pin<&mut qobject::SongModel>);
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unsafe fn begin_reset_model(self: Pin<&mut qobject::SongModel>);
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unsafe fn end_reset_model(self: Pin<&mut qobject::SongModel>);
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}
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#[cxx_qt::inherit]
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unsafe extern "C++" {
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#[cxx_name = "canFetchMore"]
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fn base_can_fetch_more(self: &qobject::SongModel, parent: &QModelIndex) -> bool;
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fn index(
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self: &qobject::SongModel,
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row: i32,
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column: i32,
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parent: &QModelIndex,
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) -> QModelIndex;
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}
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// QAbstractListModel implementation
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impl qobject::SongModel {
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#[qinvokable(cxx_override)]
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fn data(&self, index: &QModelIndex, role: i32) -> QVariant {
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if let Some(song) = self.songs().get(index.row() as usize) {
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return match role {
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0 => QVariant::from(&song.id),
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1 => QVariant::from(&song.title),
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2 => QVariant::from(&song.lyrics),
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3 => QVariant::from(&song.author),
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4 => QVariant::from(&song.ccli),
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5 => QVariant::from(&song.audio),
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6 => QVariant::from(&song.verse_order),
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7 => QVariant::from(&song.background),
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8 => QVariant::from(&song.background_type),
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9 => QVariant::from(&song.horizontal_text_alignment),
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10 => QVariant::from(&song.vertical_text_alignment),
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11 => QVariant::from(&song.font),
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12 => QVariant::from(&song.font_size),
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_ => QVariant::default(),
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};
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}
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QVariant::default()
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}
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// Example of overriding a C++ virtual method and calling the base class implementation.
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#[qinvokable(cxx_override)]
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pub fn can_fetch_more(&self, parent: &QModelIndex) -> bool {
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self.base_can_fetch_more(parent)
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}
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#[qinvokable(cxx_override)]
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pub fn role_names(&self) -> QHash_i32_QByteArray {
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let mut roles = QHash_i32_QByteArray::default();
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roles.insert(0, cxx_qt_lib::QByteArray::from("id"));
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roles.insert(1, cxx_qt_lib::QByteArray::from("title"));
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roles.insert(2, cxx_qt_lib::QByteArray::from("lyrics"));
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roles.insert(3, cxx_qt_lib::QByteArray::from("author"));
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roles.insert(4, cxx_qt_lib::QByteArray::from("ccli"));
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roles.insert(5, cxx_qt_lib::QByteArray::from("audio"));
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roles.insert(6, cxx_qt_lib::QByteArray::from("vorder"));
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roles.insert(7, cxx_qt_lib::QByteArray::from("background"));
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roles.insert(8, cxx_qt_lib::QByteArray::from("backgroundType"));
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roles.insert(9, cxx_qt_lib::QByteArray::from("horizontalTextAlignment"));
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roles.insert(10, cxx_qt_lib::QByteArray::from("verticalTextAlignment"));
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roles.insert(11, cxx_qt_lib::QByteArray::from("font"));
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roles.insert(12, cxx_qt_lib::QByteArray::from("fontSize"));
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roles
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}
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#[qinvokable(cxx_override)]
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pub fn row_count(&self, _parent: &QModelIndex) -> i32 {
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let cnt = self.rust().songs.len() as i32;
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// println!("row count is {cnt}");
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cnt
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}
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#[qinvokable]
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pub fn count(&self) -> i32 {
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self.rust().songs.len() as i32
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}
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}
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}
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