This commit is contained in:
2026-03-14 19:45:08 -03:00
parent 9ac83ad823
commit 74adc35b53
23 changed files with 1082 additions and 150 deletions
@@ -46,6 +46,9 @@ pub struct LabelQuery {
pub width_mm: u32,
#[serde(default = "default_height_mm")]
pub height_mm: u32,
/// Campos a incluir, separados por vírgula: color,name,material_brand,net_weight,print_temp,qrcode
/// Se ausente, inclui todos.
pub fields: Option<String>,
}
fn default_width_mm() -> u32 { 50 }
@@ -286,6 +289,30 @@ pub async fn get_qrcode_handler(
))
}
pub async fn export_label_pdf_handler(
State(state): State<AppState>,
Extension(user): Extension<CurrentUser>,
Path(id): Path<Uuid>,
Query(query): Query<LabelQuery>,
) -> Result<impl IntoResponse, AppError> {
let pdf = state
.filament_service
.generate_label_pdf(id, user.id, query.width_mm, query.height_mm, query.fields.as_deref())
.await?;
let filename = format!("meowspool-label-{id}.pdf");
Ok((
[
(header::CONTENT_TYPE, "application/pdf".to_string()),
(
header::CONTENT_DISPOSITION,
format!("attachment; filename=\"{filename}\""),
),
],
pdf,
))
}
pub async fn export_label_handler(
State(state): State<AppState>,
Extension(user): Extension<CurrentUser>,
@@ -294,7 +321,7 @@ pub async fn export_label_handler(
) -> Result<impl IntoResponse, AppError> {
let svg = state
.filament_service
.generate_label_svg(id, user.id, query.width_mm, query.height_mm)
.generate_label_svg(id, user.id, query.width_mm, query.height_mm, query.fields.as_deref())
.await?;
let filename = format!("meowspool-label-{id}.svg");
+210 -19
View File
@@ -65,6 +65,41 @@ pub struct FilamentService {
preset_repo: Arc<dyn SpoolPresetRepository>,
}
/// Campos de conteúdo a incluir na etiqueta.
pub struct LabelFields {
pub color: bool,
pub name: bool,
pub material_brand: bool,
pub net_weight: bool,
pub print_temp: bool,
pub qrcode: bool,
}
impl LabelFields {
/// Parseia uma string de campos separados por vírgula.
/// Se `None`, habilita todos.
pub fn from_str(s: Option<&str>) -> Self {
match s {
None => Self::all(),
Some(s) => {
let parts: Vec<&str> = s.split(',').map(str::trim).collect();
Self {
color: parts.contains(&"color"),
name: parts.contains(&"name"),
material_brand: parts.contains(&"material_brand"),
net_weight: parts.contains(&"net_weight"),
print_temp: parts.contains(&"print_temp"),
qrcode: parts.contains(&"qrcode"),
}
}
}
}
fn all() -> Self {
Self { color: true, name: true, material_brand: true, net_weight: true, print_temp: true, qrcode: true }
}
}
impl FilamentService {
pub fn new(repo: Arc<dyn FilamentRepository>, preset_repo: Arc<dyn SpoolPresetRepository>) -> Self {
Self { repo, preset_repo }
@@ -255,7 +290,9 @@ impl FilamentService {
user_id: Uuid,
width_mm: u32,
height_mm: u32,
fields: Option<&str>,
) -> Result<String, AppError> {
let f = LabelFields::from_str(fields);
let filament = self.get(id, user_id).await?;
// Gerar QR Code como PNG base64 para embutir no SVG
@@ -274,37 +311,191 @@ impl FilamentService {
let brand = &filament.brand;
let color = &filament.color_hex;
let color_swatch = if f.color {
format!(r#" <rect x="6" y="6" width="14" height="{h}" fill="{color}" rx="2"/>"#,
h = height_px - 12, color = color)
} else { String::new() };
let text_name = if f.name {
format!(r##" <text x="26" y="20" font-family="Inter, sans-serif" font-size="10" font-weight="700" fill="#F5EEDC">{model_name}</text>"##,
model_name = escape_xml(model_name))
} else { String::new() };
let text_meta = if f.material_brand {
format!(r##" <text x="26" y="33" font-family="Inter, sans-serif" font-size="8" fill="#C9C1B0">{brand} · {material}</text>"##,
brand = escape_xml(brand), material = escape_xml(&material))
} else { String::new() };
let text_weight = if f.net_weight {
format!(r##" <text x="26" y="46" font-family="Inter, sans-serif" font-size="9" font-weight="600" fill="#38BCC2">{net_weight}g</text>"##,
net_weight = net_weight)
} else { String::new() };
let qr_element = if f.qrcode {
format!(r##" <image x="{qr_x}" y="{qr_y}" width="{qr_size}" height="{qr_size}" xlink:href="data:image/png;base64,{qr_b64}"/>"##,
qr_x = width_px - qr_size - 4,
qr_y = (height_px - qr_size) / 2,
qr_size = qr_size,
qr_b64 = qr_b64)
} else { String::new() };
let svg = format!(
r##"<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="{width_px}px" height="{height_px}px" viewBox="0 0 {width_px} {height_px}">
<rect width="{width_px}" height="{height_px}" fill="#1E1B18" rx="4"/>
<!-- Color swatch -->
<rect x="6" y="6" width="14" height="{h}" fill="{color}" rx="2"/>
<!-- Text block -->
<text x="26" y="20" font-family="Inter, sans-serif" font-size="10" font-weight="700" fill="#F5EEDC">{model_name}</text>
<text x="26" y="33" font-family="Inter, sans-serif" font-size="8" fill="#C9C1B0">{brand} · {material}</text>
<text x="26" y="46" font-family="Inter, sans-serif" font-size="9" font-weight="600" fill="#38BCC2">{net_weight}g</text>
<!-- QR Code -->
<image x="{qr_x}" y="{qr_y}" width="{qr_size}" height="{qr_size}"
xlink:href="data:image/png;base64,{qr_b64}"/>
{color_swatch}
{text_name}
{text_meta}
{text_weight}
{qr_element}
</svg>"##,
width_px = width_px,
height_px = height_px,
h = height_px - 12,
color = color,
model_name = escape_xml(model_name),
brand = escape_xml(brand),
material = escape_xml(&material),
net_weight = net_weight,
qr_size = qr_size,
qr_x = width_px - qr_size - 4,
qr_y = (height_px - qr_size) / 2,
qr_b64 = qr_b64,
);
Ok(svg)
}
// -------------------------------------------------------------------------
// PDF Label
// -------------------------------------------------------------------------
pub async fn generate_label_pdf(
&self,
id: Uuid,
user_id: Uuid,
width_mm: u32,
height_mm: u32,
fields: Option<&str>,
) -> Result<Vec<u8>, AppError> {
let f = LabelFields::from_str(fields);
use printpdf::{
path::{PaintMode, WindingOrder},
ColorBits, ColorSpace, CurTransMat, Image, ImageTransform, ImageXObject, Mm, Point,
Polygon, Px, PdfDocument, BuiltinFont, Color, Rgb,
};
let filament = self.get(id, user_id).await?;
// QR Code como pixels luma — sem depender do feature image do printpdf
let qr_png = self.generate_qrcode_png(id, user_id).await?;
let qr_img = image::load_from_memory(&qr_png)
.map_err(|e| AppError::Internal(anyhow::anyhow!("QR decode: {e}")))?
.to_luma8();
let (qr_px_w, qr_px_h) = qr_img.dimensions();
let qr_raw = qr_img.into_raw();
let w = width_mm as f32;
let h = height_mm as f32;
let (doc, page1, layer1) = PdfDocument::new(
format!("MeowSpool — {}", filament.brand),
Mm(w),
Mm(h),
"Content",
);
let layer = doc.get_page(page1).get_layer(layer1);
// Helper de retângulo preenchido via Polygon
let filled_rect = |x: f32, y: f32, rw: f32, rh: f32| Polygon {
rings: vec![vec![
(Point::new(Mm(x), Mm(y)), false),
(Point::new(Mm(x + rw), Mm(y)), false),
(Point::new(Mm(x + rw), Mm(y + rh)), false),
(Point::new(Mm(x), Mm(y + rh)), false),
]],
mode: PaintMode::Fill,
winding_order: WindingOrder::NonZero,
};
// ── Fundo escuro ──────────────────────────────────────────
layer.set_fill_color(Color::Rgb(Rgb::new(0.118, 0.106, 0.094, None))); // #1E1B18
layer.add_polygon(filled_rect(0.0, 0.0, w, h));
// ── Barra de cor ─────────────────────────────────────────
if f.color {
let hex = filament.color_hex.trim_start_matches('#');
let cr = u8::from_str_radix(hex.get(0..2).unwrap_or("80"), 16).unwrap_or(128) as f32 / 255.0;
let cg = u8::from_str_radix(hex.get(2..4).unwrap_or("80"), 16).unwrap_or(128) as f32 / 255.0;
let cb = u8::from_str_radix(hex.get(4..6).unwrap_or("80"), 16).unwrap_or(128) as f32 / 255.0;
layer.set_fill_color(Color::Rgb(Rgb::new(cr, cg, cb, None)));
layer.add_polygon(filled_rect(0.0, 0.0, 3.5, h));
}
// ── QR Code ───────────────────────────────────────────────
if f.qrcode {
let qr_size_mm = h * 0.75;
let qr_x = w - qr_size_mm - 2.0;
let qr_y = (h - qr_size_mm) / 2.0;
let qr_dpi = qr_px_w as f32 * 25.4 / qr_size_mm;
let qr_xobj = ImageXObject {
width: Px(qr_px_w as usize),
height: Px(qr_px_h as usize),
color_space: ColorSpace::Greyscale,
bits_per_component: ColorBits::Bit8,
interpolate: true,
image_data: qr_raw,
image_filter: None,
clipping_bbox: None,
smask: None,
};
Image::from(qr_xobj).add_to_layer(
layer.clone(),
ImageTransform {
translate_x: Some(Mm(qr_x)),
translate_y: Some(Mm(qr_y)),
rotate: None,
scale_x: None,
scale_y: None,
dpi: Some(qr_dpi),
},
);
}
// ── Texto ─────────────────────────────────────────────────
let needs_text = f.name || f.material_brand || f.net_weight;
if needs_text {
let font_bold = doc.add_builtin_font(BuiltinFont::HelveticaBold)
.map_err(|e| AppError::Internal(anyhow::anyhow!("Font: {e}")))?;
let font = doc.add_builtin_font(BuiltinFont::Helvetica)
.map_err(|e| AppError::Internal(anyhow::anyhow!("Font: {e}")))?;
let text_x = 5.0_f32;
if f.name {
let model_name = filament.model.as_deref().unwrap_or(&filament.brand);
layer.set_fill_color(Color::Rgb(Rgb::new(0.961, 0.933, 0.863, None)));
layer.use_text(model_name, 9.0, Mm(text_x), Mm(h - 8.0), &font_bold);
}
if f.material_brand {
let meta = format!("{} · {}", filament.brand, filament.material);
layer.set_fill_color(Color::Rgb(Rgb::new(0.788, 0.757, 0.690, None)));
layer.use_text(&meta, 7.0, Mm(text_x), Mm(h - 14.0), &font);
}
if f.net_weight {
layer.set_fill_color(Color::Rgb(Rgb::new(0.220, 0.737, 0.761, None)));
layer.use_text(
&format!("{:.0}g disponível", filament.net_weight_g),
8.0,
Mm(text_x),
Mm(h - 20.0),
&font_bold,
);
}
}
let _ = CurTransMat::Identity; // suprime unused import
// ── Serializar ────────────────────────────────────────────
let mut buf = Vec::new();
doc.save(&mut std::io::BufWriter::new(std::io::Cursor::new(&mut buf)))
.map_err(|e| AppError::Internal(anyhow::anyhow!("PDF save: {e}")))?;
Ok(buf)
}
}
fn escape_xml(s: &str) -> String {
+1
View File
@@ -85,6 +85,7 @@ pub fn build(db: PgPool, config: Config) -> Router {
.route("/filaments/:id", delete(filament_handler::delete_filament_handler))
.route("/filaments/:id/qrcode", get(filament_handler::get_qrcode_handler))
.route("/filaments/:id/label.svg", get(filament_handler::export_label_handler))
.route("/filaments/:id/label.pdf", get(filament_handler::export_label_pdf_handler))
// Spool Presets
.route("/spool-presets", get(spool_preset_handler::list_presets_handler))
.route("/spool-presets", post(spool_preset_handler::create_preset_handler))