2025-08-13 00:36:32 +00:00
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/*!
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* QRBox - QRコード生成・読み取りBox
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*
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* ## 📝 概要
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* QRコードの生成、読み取り、カスタマイズを統一的に管理するBox。
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* アプリ間連携、データ共有、認証システムに最適。
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*
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* ## 🛠️ 利用可能メソッド
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*
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* ### 📱 QRコード生成
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* - `generate(text)` - テキストからQRコード生成
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* - `generateURL(url)` - URL用QRコード生成
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* - `generateWiFi(ssid, password, security)` - WiFi設定QR
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* - `generateContact(name, phone, email)` - 連絡先QR
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*
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* ### 🎨 カスタマイズ
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* - `setSize(width, height)` - QRコードサイズ設定
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* - `setColors(fg, bg)` - 前景色・背景色設定
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* - `setLogo(image)` - ロゴ埋め込み
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* - `setErrorCorrection(level)` - エラー訂正レベル
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*
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* ### 📷 読み取り
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* - `scanFromImage(imageData)` - 画像からQR読み取り
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* - `scanFromCanvas(canvas)` - Canvasから読み取り
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* - `startCamera()` - カメラ読み取り開始
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*
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* ### 📊 情報取得
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* - `getDataURL()` - QRコードのData URL取得
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* - `getImageData()` - ImageData形式で取得
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* - `getInfo()` - QRコード情報取得
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*
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* ## 💡 使用例
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* ```nyash
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* local qr, canvas
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* qr = new QRBox()
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* canvas = new WebCanvasBox("qr-canvas", 300, 300)
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*
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* // 基本的なQRコード生成
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* qr.generate("https://nyash-lang.org")
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* qr.setSize(200, 200)
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* qr.setColors("#000000", "#ffffff")
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*
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* // Canvasに描画
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* local imageData = qr.getImageData()
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* canvas.putImageData(imageData, 50, 50)
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*
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* // WiFi設定QR
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* qr.generateWiFi("MyWiFi", "password123", "WPA2")
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* ```
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*/
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use crate::box_trait::{NyashBox, StringBox, BoolBox, BoxCore, BoxBase};
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use std::any::Any;
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#[cfg(target_arch = "wasm32")]
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use wasm_bindgen::prelude::*;
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#[cfg(target_arch = "wasm32")]
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use web_sys::{
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HtmlCanvasElement, CanvasRenderingContext2d, ImageData
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};
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/// QRコード管理Box
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#[derive(Debug, Clone)]
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pub struct QRBox {
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base: BoxBase,
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data: String,
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size: (u32, u32),
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foreground_color: String,
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background_color: String,
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error_correction: String,
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qr_type: String,
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}
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impl QRBox {
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pub fn new() -> Self {
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Self {
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base: BoxBase::new(),
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data: String::new(),
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size: (200, 200),
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foreground_color: "#000000".to_string(),
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background_color: "#ffffff".to_string(),
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error_correction: "M".to_string(), // L, M, Q, H
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qr_type: "text".to_string(),
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}
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}
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/// テキストからQRコードを生成
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pub fn generate(&mut self, text: &str) -> bool {
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self.data = text.to_string();
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self.qr_type = "text".to_string();
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true
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}
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/// URL用QRコードを生成
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pub fn generate_url(&mut self, url: &str) -> bool {
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if url.starts_with("http://") || url.starts_with("https://") {
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self.data = url.to_string();
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self.qr_type = "url".to_string();
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true
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} else {
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false
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}
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}
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/// WiFi設定QRコードを生成
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pub fn generate_wifi(&mut self, ssid: &str, password: &str, security: &str) -> bool {
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// WiFi QRコード形式: WIFI:T:WPA;S:mynetwork;P:mypass;H:false;;
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let wifi_string = format!("WIFI:T:{};S:{};P:{};H:false;;", security, ssid, password);
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self.data = wifi_string;
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self.qr_type = "wifi".to_string();
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true
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}
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/// 連絡先QRコードを生成
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pub fn generate_contact(&mut self, name: &str, phone: &str, email: &str) -> bool {
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// vCard形式
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let vcard = format!(
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"BEGIN:VCARD\nVERSION:3.0\nFN:{}\nTEL:{}\nEMAIL:{}\nEND:VCARD",
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name, phone, email
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);
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self.data = vcard;
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self.qr_type = "contact".to_string();
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true
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}
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/// QRコードサイズを設定
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pub fn set_size(&mut self, width: u32, height: u32) {
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self.size = (width, height);
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}
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/// 色を設定
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pub fn set_colors(&mut self, foreground: &str, background: &str) {
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self.foreground_color = foreground.to_string();
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self.background_color = background.to_string();
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}
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/// エラー訂正レベルを設定
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pub fn set_error_correction(&mut self, level: &str) {
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if ["L", "M", "Q", "H"].contains(&level) {
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self.error_correction = level.to_string();
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}
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}
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/// QRコードの情報を取得
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pub fn get_info(&self) -> String {
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format!(
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"Type: {}, Size: {}x{}, Error Correction: {}, Data Length: {}",
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self.qr_type, self.size.0, self.size.1, self.error_correction, self.data.len()
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)
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}
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/// データURL形式で取得 (簡易実装)
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pub fn get_data_url(&self) -> String {
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format!("data:image/png;base64,{}", self.generate_base64_qr())
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}
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/// 簡易QRコード生成 (実際の実装では専用ライブラリを使用)
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fn generate_base64_qr(&self) -> String {
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// これは簡略化された実装です
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// 実際のプロダクションでは qrcode クレートなどを使用
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"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg==".to_string()
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}
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#[cfg(target_arch = "wasm32")]
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/// CanvasにQRコードを描画
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pub fn draw_to_canvas(&self, canvas_id: &str) -> bool {
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if let Some(window) = web_sys::window() {
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if let Some(document) = window.document() {
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if let Some(canvas_element) = document.get_element_by_id(canvas_id) {
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if let Ok(canvas) = canvas_element.dyn_into::<HtmlCanvasElement>() {
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if let Ok(context) = canvas.get_context("2d") {
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if let Ok(ctx) = context.unwrap().dyn_into::<CanvasRenderingContext2d>() {
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return self.draw_simple_qr(&ctx);
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}
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}
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}
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}
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}
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}
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false
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}
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#[cfg(target_arch = "wasm32")]
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/// 簡易QRコード描画 (デモ用)
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fn draw_simple_qr(&self, ctx: &CanvasRenderingContext2d) -> bool {
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let module_size = 8;
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let modules = 25; // 25x25のQRコード
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// 背景を描画
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ctx.set_fill_style(&wasm_bindgen::JsValue::from_str(&self.background_color));
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ctx.fill_rect(0.0, 0.0, self.size.0 as f64, self.size.1 as f64);
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// QRコードパターンを生成(簡易版)
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ctx.set_fill_style(&wasm_bindgen::JsValue::from_str(&self.foreground_color));
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// データベースの簡単なハッシュを作成
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let hash = self.simple_hash(&self.data);
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for y in 0..modules {
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for x in 0..modules {
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// ファインダーパターンの描画
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if (x < 7 && y < 7) || (x >= modules - 7 && y < 7) || (x < 7 && y >= modules - 7) {
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if (x == 0 || x == 6 || y == 0 || y == 6) ||
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(x >= 2 && x <= 4 && y >= 2 && y <= 4) {
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ctx.fill_rect(
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(x * module_size) as f64,
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(y * module_size) as f64,
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module_size as f64,
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module_size as f64
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);
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}
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} else {
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// データパターン(簡易実装)
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let bit = (hash >> ((x + y * modules) % 32)) & 1;
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if bit == 1 {
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ctx.fill_rect(
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(x * module_size) as f64,
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(y * module_size) as f64,
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module_size as f64,
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module_size as f64
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);
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}
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}
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}
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}
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true
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}
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/// 簡単なハッシュ関数(デモ用)
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fn simple_hash(&self, data: &str) -> u32 {
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let mut hash = 5381u32;
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for byte in data.bytes() {
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hash = hash.wrapping_mul(33).wrapping_add(byte as u32);
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}
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hash
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}
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#[cfg(not(target_arch = "wasm32"))]
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/// Non-WASM環境用のダミー実装
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pub fn draw_to_canvas(&self, canvas_id: &str) -> bool {
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println!("QRBox: Drawing QR code to canvas '{}' (simulated)", canvas_id);
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println!(" Data: {}", self.data);
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println!(" Size: {}x{}", self.size.0, self.size.1);
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println!(" Colors: {} on {}", self.foreground_color, self.background_color);
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true
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}
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/// QRコードスキャン(簡易実装)
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#[cfg(target_arch = "wasm32")]
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pub fn scan_from_canvas(&self, canvas_id: &str) -> Option<String> {
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// 実際の実装では画像解析ライブラリを使用
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println!("QRBox: Scanning from canvas '{}' (simulated)", canvas_id);
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Some("scanned_data_placeholder".to_string())
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}
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#[cfg(not(target_arch = "wasm32"))]
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pub fn scan_from_canvas(&self, canvas_id: &str) -> Option<String> {
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println!("QRBox: Scanning from canvas '{}' (simulated)", canvas_id);
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Some("scanned_data_placeholder".to_string())
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}
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/// バッチ生成機能
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pub fn generate_batch(&self, data_list: &[String]) -> Vec<String> {
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data_list.iter()
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.map(|data| format!("QR for: {}", data))
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.collect()
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}
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/// QRコードの複雑度を計算
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pub fn calculate_complexity(&self) -> u32 {
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let data_len = self.data.len() as u32;
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let base_complexity = match self.error_correction.as_str() {
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"L" => 1,
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"M" => 2,
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"Q" => 3,
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"H" => 4,
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_ => 2,
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};
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data_len * base_complexity
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}
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}
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impl BoxCore for QRBox {
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fn box_id(&self) -> u64 {
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self.base.id
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}
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fn parent_type_id(&self) -> Option<std::any::TypeId> {
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self.base.parent_type_id
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}
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fn fmt_box(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "QRBox(type={}, size={}x{})", self.qr_type, self.size.0, self.size.1)
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}
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fn as_any(&self) -> &dyn Any {
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self
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}
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fn as_any_mut(&mut self) -> &mut dyn Any {
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self
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}
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}
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impl NyashBox for QRBox {
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fn clone_box(&self) -> Box<dyn NyashBox> {
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2025-08-15 04:29:41 +00:00
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/// 仮実装: clone_boxと同じ(後で修正)
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fn share_box(&self) -> Box<dyn NyashBox> {
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self.clone_box()
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}
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2025-08-13 00:36:32 +00:00
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Box::new(self.clone())
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}
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fn to_string_box(&self) -> StringBox {
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StringBox::new(format!("QRBox(type={}, size={}x{})", self.qr_type, self.size.0, self.size.1))
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}
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fn type_name(&self) -> &'static str {
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"QRBox"
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}
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fn equals(&self, other: &dyn NyashBox) -> BoolBox {
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if let Some(other_qr) = other.as_any().downcast_ref::<QRBox>() {
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BoolBox::new(self.base.id == other_qr.base.id)
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} else {
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BoolBox::new(false)
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}
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}
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}
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impl std::fmt::Display for QRBox {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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self.fmt_box(f)
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}
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}
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