Merge branch 'dev' of https://gitea.maskantech.in/gitea_admin/pdf into azeem

engine/src/parser/pdfium_document.cpp

@@ -1075,6 +1075,71 @@ std::expected<PageModel, EngineError> PdfiumPage::extractDocumentModel() const {
         }
     }
     
+    // Phase 5H: Geometry Rollup
+    auto computeRunBBox = [](TextRun& r) {
+        if (r.glyphs.empty()) return;
+        double minX = r.glyphs[0].bboxX;
+        double minY = r.glyphs[0].bboxY;
+        double maxX = r.glyphs[0].bboxX + r.glyphs[0].bboxW;
+        double maxY = r.glyphs[0].bboxY + r.glyphs[0].bboxH;
+        for (size_t i = 1; i < r.glyphs.size(); ++i) {
+            minX = (std::min)(minX, r.glyphs[i].bboxX);
+            minY = (std::min)(minY, r.glyphs[i].bboxY);
+            maxX = (std::max)(maxX, r.glyphs[i].bboxX + r.glyphs[i].bboxW);
+            maxY = (std::max)(maxY, r.glyphs[i].bboxY + r.glyphs[i].bboxH);
+        }
+        r.x = minX;
+        r.y = minY;
+        r.w = maxX - minX;
+        r.h = maxY - minY;
+    };
+    
+    auto computeLineBBox = [](TextLine& l) {
+        if (l.runs.empty()) return;
+        double minX = l.runs[0].x;
+        double minY = l.runs[0].y;
+        double maxX = l.runs[0].x + l.runs[0].w;
+        double maxY = l.runs[0].y + l.runs[0].h;
+        for (size_t i = 1; i < l.runs.size(); ++i) {
+            minX = (std::min)(minX, l.runs[i].x);
+            minY = (std::min)(minY, l.runs[i].y);
+            maxX = (std::max)(maxX, l.runs[i].x + l.runs[i].w);
+            maxY = (std::max)(maxY, l.runs[i].y + l.runs[i].h);
+        }
+        l.x = minX;
+        l.y = minY;
+        l.w = maxX - minX;
+        l.h = maxY - minY;
+    };
+    
+    auto computeParaBBox = [](Paragraph& p) {
+        if (p.lines.empty()) return;
+        double minX = p.lines[0].x;
+        double minY = p.lines[0].y;
+        double maxX = p.lines[0].x + p.lines[0].w;
+        double maxY = p.lines[0].y + p.lines[0].h;
+        for (size_t i = 1; i < p.lines.size(); ++i) {
+            minX = (std::min)(minX, p.lines[i].x);
+            minY = (std::min)(minY, p.lines[i].y);
+            maxX = (std::max)(maxX, p.lines[i].x + p.lines[i].w);
+            maxY = (std::max)(maxY, p.lines[i].y + p.lines[i].h);
+        }
+        p.x = minX;
+        p.y = minY;
+        p.w = maxX - minX;
+        p.h = maxY - minY;
+    };
+
+    for (auto& p : paragraphs) {
+        for (auto& l : p.lines) {
+            for (auto& r : l.runs) {
+                computeRunBBox(r);
+            }
+            computeLineBBox(l);
+        }
+        computeParaBBox(p);
+    }
+
     model.paragraphs = std::move(paragraphs);
 
     return model;