remove old svelte web source

src/picture_generator/export_format.rs

@@ -0,0 +1,36 @@
+use image::ImageFormat;
+
+#[derive(Debug, PartialEq, Clone, Copy)]
+pub enum ExportFormat {
+    Jpeg,
+    Avif,
+    Svg,
+    Png,
+}
+
+impl ExportFormat {
+    pub fn get_extension(&self) -> &str {
+        match self {
+            ExportFormat::Jpeg => "jpg",
+            ExportFormat::Avif => "avif",
+            ExportFormat::Svg => "svg",
+            ExportFormat::Png => "png",
+        }
+    }
+    pub fn get_type(&self) -> &str {
+        match self {
+            ExportFormat::Jpeg => "image/jpeg",
+            ExportFormat::Avif => "image/avif",
+            ExportFormat::Svg => "image/svg+xml",
+            ExportFormat::Png => "image/png",
+        }
+    }
+    pub fn get_image_format(&self) -> ImageFormat {
+        match self {
+            ExportFormat::Jpeg => ImageFormat::Jpeg,
+            ExportFormat::Avif => ImageFormat::Avif,
+            ExportFormat::Svg => ImageFormat::Jpeg, // TODO what now?
+            ExportFormat::Png => ImageFormat::Png,
+        }
+    }
+}