done the highlight

2026-06-08 16:27:53 +05:30
parent 5ea14b6fd4
commit 988f6b90df
6 changed files with 181 additions and 9 deletions
@@ -1204,7 +1204,68 @@ std::expected<void, EngineError> PdfiumDocument::applyEdits(const std::string& e
                FPDFBitmap_Destroy(bitmap);
                FPDF_ClosePage(page);
            } else if (type == "highlight") {
-                spdlog::info("Parsed highlight edit operation (stub)");
+                if (!op.contains("data") || !op["data"].is_object()) {
+                    spdlog::error("highlight operation missing 'data' object");
+                    return std::unexpected(EngineError::InvalidFormat);
+                }
+                auto data = op["data"];
+                std::string color = data.value("color", "#ffeb3b");
+                std::string author = data.value("author", "");
+                std::string content = data.value("content", "");
+
+                if (!data.contains("quadPoints") || !data["quadPoints"].is_array()) {
+                    spdlog::error("highlight operation missing 'quadPoints' array");
+                    return std::unexpected(EngineError::InvalidFormat);
+                }
+                auto quadPoints = data["quadPoints"];
+
+                FPDF_PAGE page = FPDF_LoadPage(doc_, pageIndex);
+                if (!page) {
+                    spdlog::error("Failed to load page index {} for highlight", pageIndex);
+                    return std::unexpected(EngineError::Unknown);
+                }
+
+                FPDF_ANNOTATION annot = FPDFPage_CreateAnnot(page, FPDF_ANNOT_HIGHLIGHT);
+                if (!annot) {
+                    spdlog::error("Failed to create highlight annotation");
+                    FPDF_ClosePage(page);
+                    return std::unexpected(EngineError::Unknown);
+                }
+
+                float minX = 999999, minY = 999999, maxX = -999999, maxY = -999999;
+                for (const auto& qp : quadPoints) {
+                    FS_QUADPOINTSF quad;
+                    quad.x1 = qp.value("x1", 0.0f); quad.y1 = qp.value("y1", 0.0f);
+                    quad.x2 = qp.value("x2", 0.0f); quad.y2 = qp.value("y2", 0.0f);
+                    quad.x3 = qp.value("x3", 0.0f); quad.y3 = qp.value("y3", 0.0f);
+                    quad.x4 = qp.value("x4", 0.0f); quad.y4 = qp.value("y4", 0.0f);
+                    FPDFAnnot_AppendAttachmentPoints(annot, &quad);
+                    
+                    minX = (std::min)({minX, quad.x1, quad.x2, quad.x3, quad.x4});
+                    minY = (std::min)({minY, quad.y1, quad.y2, quad.y3, quad.y4});
+                    maxX = (std::max)({maxX, quad.x1, quad.x2, quad.x3, quad.x4});
+                    maxY = (std::max)({maxY, quad.y1, quad.y2, quad.y3, quad.y4});
+                }
+
+                FS_RECTF rect;
+                rect.left = minX; rect.bottom = minY; rect.right = maxX; rect.top = maxY;
+                FPDFAnnot_SetRect(annot, &rect);
+
+                unsigned int r = 0, g = 0, b = 0;
+                parseHexColor(color, r, g, b);
+                FPDFAnnot_SetColor(annot, FPDFANNOT_COLORTYPE_Color, r, g, b, 255);
+
+                if (!content.empty()) {
+                    auto utf16 = utf8_to_utf16le(content);
+                    FPDFAnnot_SetStringValue(annot, "Contents", reinterpret_cast<FPDF_WIDESTRING>(utf16.data()));
+                }
+                if (!author.empty()) {
+                    auto utf16 = utf8_to_utf16le(author);
+                    FPDFAnnot_SetStringValue(annot, "T", reinterpret_cast<FPDF_WIDESTRING>(utf16.data()));
+                }
+
+                FPDFPage_CloseAnnot(annot);
+                FPDF_ClosePage(page);
            } else if (type == "free_text") {
                spdlog::info("Parsed free_text edit operation (stub)");
            } else if (type == "comment") {