fix bugs

layout-engine/src/lib.rs

@@ -0,0 +1,142 @@
+pub mod sizing;
+pub mod text_measure;
+pub mod data_resolve;
+pub mod table_layout;
+pub mod tree;
+
+#[cfg(target_arch = "wasm32")]
+pub mod wasm_api;
+
+pub mod barcode_gen;
+
+#[cfg(not(target_arch = "wasm32"))]
+pub mod pdf_render;
+
+use dreport_core::models::Template;
+use serde::{Deserialize, Serialize};
+
+// --- Layout sonuç tipleri ---
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct LayoutResult {
+    pub pages: Vec<PageLayout>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PageLayout {
+    pub page_index: usize,
+    pub width_mm: f64,
+    pub height_mm: f64,
+    pub elements: Vec<ElementLayout>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ElementLayout {
+    pub id: String,
+    pub x_mm: f64,
+    pub y_mm: f64,
+    pub width_mm: f64,
+    pub height_mm: f64,
+    pub element_type: String,
+    pub content: Option<ResolvedContent>,
+    pub style: ResolvedStyle,
+    pub children: Vec<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(tag = "type")]
+pub enum ResolvedContent {
+    #[serde(rename = "text")]
+    Text { value: String },
+    #[serde(rename = "image")]
+    Image { src: String },
+    #[serde(rename = "line")]
+    Line,
+    #[serde(rename = "barcode")]
+    Barcode { format: String, value: String },
+    #[serde(rename = "page_number")]
+    PageNumber { current: usize, total: usize },
+    #[serde(rename = "table")]
+    Table {
+        headers: Vec<TableHeaderCell>,
+        rows: Vec<Vec<TableCell>>,
+        column_widths_mm: Vec<f64>,
+    },
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TableHeaderCell {
+    pub text: String,
+    pub align: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TableCell {
+    pub text: String,
+    pub align: String,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ResolvedStyle {
+    // Text
+    pub font_size: Option<f64>,
+    pub font_weight: Option<String>,
+    pub font_family: Option<String>,
+    pub color: Option<String>,
+    pub text_align: Option<String>,
+    // Line
+    pub stroke_color: Option<String>,
+    pub stroke_width: Option<f64>,
+    // Container
+    pub background_color: Option<String>,
+    pub border_color: Option<String>,
+    pub border_width: Option<f64>,
+    pub border_radius: Option<f64>,
+    pub border_style: Option<String>,
+    // Table
+    pub header_bg: Option<String>,
+    pub header_color: Option<String>,
+    pub zebra_odd: Option<String>,
+    pub zebra_even: Option<String>,
+    pub header_font_size: Option<f64>,
+    // Image
+    pub object_fit: Option<String>,
+    // Barcode
+    pub barcode_color: Option<String>,
+    pub barcode_include_text: Option<bool>,
+}
+
+/// Ana layout hesaplama fonksiyonu.
+/// Template + data + font verileri alır, her element için pozisyon döner.
+pub fn compute_layout(
+    template: &Template,
+    data: &serde_json::Value,
+    font_data: &[FontData],
+) -> LayoutResult {
+    let mut measurer = text_measure::TextMeasurer::new(font_data);
+    let resolved = data_resolve::resolve_template(template, data);
+    tree::compute(template, &resolved, &mut measurer)
+}
+
+/// Cache-aware layout hesaplama.
+/// Önceki çağrıdan kalan text measurement cache'ini alır, hesaplama sonrası
+/// güncellenen cache'i geri döner. WASM tarafında cross-call persist için kullanılır.
+pub fn compute_layout_cached(
+    template: &Template,
+    data: &serde_json::Value,
+    font_data: &[FontData],
+    text_cache: text_measure::TextMeasureCache,
+) -> (LayoutResult, text_measure::TextMeasureCache) {
+    let mut measurer = text_measure::TextMeasurer::new_with_cache(font_data, text_cache);
+    let resolved = data_resolve::resolve_template(template, data);
+    let result = tree::compute(template, &resolved, &mut measurer);
+    (result, measurer.take_cache())
+}
+
+/// Font verisi (ham TTF/OTF bytes)
+#[derive(Debug, Clone)]
+pub struct FontData {
+    pub family: String,
+    pub data: Vec<u8>,
+}