From d049db9917678cad08e3d94c8d9276fbb9de00d1 Mon Sep 17 00:00:00 2001
From: gronod <gordon@i3omb.com>
Date: Tue, 25 Aug 2026 10:10:31 +0100
Subject: [PATCH] feat(ui): add cross-platform TIFF-to-PNG preview conversion
 and set window dimensions (v0.1.13)

---
 package.json              |  2 +-
 src-tauri/Cargo.toml      |  8 ++++----
 src-tauri/src/commands.rs | 26 ++++++++++++++++++++++++++
 src-tauri/src/lib.rs      |  1 +
 src-tauri/tauri.conf.json |  8 +++++---
 src/js/printtarg.js       |  4 ++--
 6 files changed, 39 insertions(+), 10 deletions(-)

diff --git a/package.json b/package.json
index 773b906..5ad48c9 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "iccery",
   "private": true,
-  "version": "0.1.12",
+  "version": "0.1.13",
   "type": "module",
   "scripts": {
     "tauri": "tauri"
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 419ff98..d9ddbe1 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -1,8 +1,8 @@
 [package]
 name = "iccery"
-version = "0.1.12"
-description = "A Tauri App"
-authors = ["you"]
+version = "0.1.13"
+description = "Modern Printer Profiling UI frontend for ArgyllCMS"
+authors = ["Gordon"]
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -24,6 +24,7 @@ serde_json = "1"
 tokio = { version = "1", features = ["process", "io-util", "sync", "time", "rt-multi-thread"] }
 tauri-plugin-dialog = "2.7.2"
 base64 = "0.22"
+image = { version = "0.25", default-features = false, features = ["png", "tiff"] }
 
 [target.'cfg(windows)'.dependencies]
 windows = { version = "0.61", features = [
@@ -32,7 +33,6 @@ windows = { version = "0.61", features = [
     "Win32_Graphics_Printing",
     "Win32_UI_WindowsAndMessaging",
 ] }
-image = { version = "0.25", default-features = false, features = ["tiff"] }
 
 [profile.release]
 panic = "abort"
diff --git a/src-tauri/src/commands.rs b/src-tauri/src/commands.rs
index 1d7fbb3..d80a23c 100644
--- a/src-tauri/src/commands.rs
+++ b/src-tauri/src/commands.rs
@@ -245,6 +245,32 @@ pub async fn read_file_base64(path: String) -> Result<String, String> {
     Ok(base64::engine::general_purpose::STANDARD.encode(&bytes))
 }
 
+#[tauri::command]
+pub async fn read_tiff_preview_png(path: String) -> Result<String, String> {
+    use std::fs;
+    use std::io::Cursor;
+    use base64::Engine;
+    use image::ImageFormat;
+
+    let file_bytes = fs::read(&path).map_err(|e| format!("Failed to read {}: {}", path, e))?;
+    let img = image::load_from_memory_with_format(&file_bytes, ImageFormat::Tiff)
+        .map_err(|e| format!("Failed to decode TIFF {}: {}", path, e))?;
+
+    let max_dim = std::cmp::max(img.width(), img.height());
+    let processed_img = if max_dim > 1200 {
+        img.resize(1200, 1200, image::imageops::FilterType::Lanczos3)
+    } else {
+        img
+    };
+
+    let mut png_bytes = Cursor::new(Vec::new());
+    processed_img
+        .write_to(&mut png_bytes, ImageFormat::Png)
+        .map_err(|e| format!("Failed to encode PNG for {}: {}", path, e))?;
+
+    Ok(base64::engine::general_purpose::STANDARD.encode(png_bytes.into_inner()))
+}
+
 #[derive(Debug, Deserialize, Serialize)]
 pub struct ChartreadConfig {
     pub basename: String,
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 282e023..1c9e97b 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -22,6 +22,7 @@ pub fn run() {
             commands::run_targen,
             commands::run_printtarg,
             commands::read_file_base64,
+            commands::read_tiff_preview_png,
             commands::run_chartread,
             commands::run_colprof,
             commands::run_profcheck,
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 217eb52..518296f 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "ICCery",
-  "version": "0.1.12",
+  "version": "0.1.13",
   "identifier": "com.gronod.iccery",
   "build": {
     "frontendDist": "../src"
@@ -11,8 +11,10 @@
     "windows": [
       {
         "title": "ICCery",
-        "width": 800,
-        "height": 600
+        "width": 1280,
+        "height": 800,
+        "minWidth": 1100,
+        "minHeight": 700
       }
     ],
     "security": {
diff --git a/src/js/printtarg.js b/src/js/printtarg.js
index a826b4c..d6bc09a 100644
--- a/src/js/printtarg.js
+++ b/src/js/printtarg.js
@@ -511,9 +511,9 @@ export function initPrinttarg() {
       card.appendChild(label);
 
       try {
-        const base64Data = await invoke("read_file_base64", { path: filePath });
+        const pngBase64 = await invoke("read_tiff_preview_png", { path: filePath });
         const img = document.createElement("img");
-        img.src = `data:image/tiff;base64,${base64Data}`;
+        img.src = `data:image/png;base64,${pngBase64}`;
         img.alt = page.filename;
         img.onerror = () => {
           img.remove();
-- 
2.39.5