Fix split display on zoom

app/proprietary/src/main/java/stirling/software/proprietary/security/service/KeyPairCleanupService.java

@@ -8,10 +8,6 @@ import java.time.LocalDateTime;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-<<<<<<< HEAD
-import org.springframework.beans.factory.annotation.Autowired;
-=======
->>>>>>> origin
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBooleanProperty;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
@@ -33,10 +29,6 @@ public class KeyPairCleanupService {
     private final KeyPersistenceService keyPersistenceService;
     private final ApplicationProperties.Security.Jwt jwtProperties;
 
-<<<<<<< HEAD
-    @Autowired
-=======
->>>>>>> origin
     public KeyPairCleanupService(
             KeyPersistenceService keyPersistenceService,
             ApplicationProperties applicationProperties) {

app/proprietary/src/main/java/stirling/software/proprietary/security/service/KeyPersistenceService.java

@@ -1,17 +1,11 @@
 package stirling.software.proprietary.security.service;
 
 import java.io.IOException;
-<<<<<<< HEAD
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-=======
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
->>>>>>> origin
 import java.security.KeyFactory;
 import java.security.KeyPair;
 import java.security.KeyPairGenerator;
@@ -28,10 +22,6 @@ import java.util.List;
 import java.util.Optional;
 import java.util.stream.Collectors;
 
-<<<<<<< HEAD
-import org.springframework.beans.factory.annotation.Autowired;
-=======
->>>>>>> origin
 import org.springframework.cache.Cache;
 import org.springframework.cache.CacheManager;
 import org.springframework.cache.annotation.CacheEvict;
@@ -54,24 +44,10 @@ public class KeyPersistenceService implements KeyPersistenceServiceInterface {
     public static final String KEY_SUFFIX = ".key";
 
     private final ApplicationProperties.Security.Jwt jwtProperties;
-<<<<<<< HEAD
-    private final CacheManager cacheManager;
-=======
->>>>>>> origin
     private final Cache verifyingKeyCache;
 
     private volatile JwtVerificationKey activeKey;
 
-<<<<<<< HEAD
-    @Autowired
-    public KeyPersistenceService(
-            ApplicationProperties applicationProperties, CacheManager cacheManager) {
-        this.jwtProperties = applicationProperties.getSecurity().getJwt();
-        this.cacheManager = cacheManager;
-        this.verifyingKeyCache = cacheManager.getCache("verifyingKeys");
-    }
-
-=======
     public KeyPersistenceService(
             ApplicationProperties applicationProperties, CacheManager cacheManager) {
         this.jwtProperties = applicationProperties.getSecurity().getJwt();
@@ -106,7 +82,6 @@ public class KeyPersistenceService implements KeyPersistenceServiceInterface {
         }
     }
 
->>>>>>> origin
     @PostConstruct
     public void initializeKeystore() {
         if (!isKeystoreEnabled()) {
@@ -114,10 +89,7 @@ public class KeyPersistenceService implements KeyPersistenceServiceInterface {
         }
 
         try {
-<<<<<<< HEAD
-=======
             moveKeysToBackup();
->>>>>>> origin
             ensurePrivateKeyDirectoryExists();
             loadKeyPair();
         } catch (Exception e) {
@@ -214,11 +186,7 @@ public class KeyPersistenceService implements KeyPersistenceServiceInterface {
                 nativeCache.asMap().size());
 
         return nativeCache.asMap().values().stream()
-<<<<<<< HEAD
-                .filter(value -> value instanceof JwtVerificationKey)
-=======
                 .filter(JwtVerificationKey.class::isInstance)
->>>>>>> origin
                 .map(value -> (JwtVerificationKey) value)
                 .filter(
                         key -> {
@@ -292,10 +260,7 @@ public class KeyPersistenceService implements KeyPersistenceServiceInterface {
         return Base64.getEncoder().encodeToString(publicKey.getEncoded());
     }
 
-<<<<<<< HEAD
-=======
     @Override
->>>>>>> origin
     public PublicKey decodePublicKey(String encodedKey)
             throws NoSuchAlgorithmException, InvalidKeySpecException {
         byte[] keyBytes = Base64.getDecoder().decode(encodedKey);

frontend/src/components/pageEditor/DragDropGrid.tsx

@@ -3,6 +3,7 @@ import { Box } from '@mantine/core';
 import { useVirtualizer } from '@tanstack/react-virtual';
 import { dropTargetForElements } from '@atlaskit/pragmatic-drag-and-drop/element/adapter';
 import styles from './PageEditor.module.css';
+import { GRID_CONSTANTS } from './constants';
 
 interface DragDropItem {
   id: string;
@@ -33,10 +34,7 @@ const DragDropGrid = <T extends DragDropItem>({
   
   // Responsive grid configuration
   const [itemsPerRow, setItemsPerRow] = useState(4);
-  const ITEM_WIDTH = 320; // 20rem (page width)
-  const ITEM_GAP = 24; // 1.5rem gap between items
-  const ITEM_HEIGHT = 340; // 20rem + gap
-  const OVERSCAN = items.length > 1000 ? 8 : 4; // More overscan for large documents
+  const OVERSCAN = items.length > 1000 ? GRID_CONSTANTS.OVERSCAN_LARGE : GRID_CONSTANTS.OVERSCAN_SMALL;
   
   // Calculate items per row based on container width
   const calculateItemsPerRow = useCallback(() => {
@@ -45,6 +43,11 @@ const DragDropGrid = <T extends DragDropItem>({
     const containerWidth = containerRef.current.offsetWidth;
     if (containerWidth === 0) return 4; // Container not measured yet
     
+    // Convert rem to pixels for calculation
+    const remToPx = parseFloat(getComputedStyle(document.documentElement).fontSize);
+    const ITEM_WIDTH = parseFloat(GRID_CONSTANTS.ITEM_WIDTH) * remToPx;
+    const ITEM_GAP = parseFloat(GRID_CONSTANTS.ITEM_GAP) * remToPx;
+    
     // Calculate how many items fit: (width - gap) / (itemWidth + gap)
     const availableWidth = containerWidth - ITEM_GAP; // Account for first gap
     const itemWithGap = ITEM_WIDTH + ITEM_GAP;
@@ -82,7 +85,10 @@ const DragDropGrid = <T extends DragDropItem>({
   const rowVirtualizer = useVirtualizer({
     count: Math.ceil(items.length / itemsPerRow),
     getScrollElement: () => containerRef.current?.closest('[data-scrolling-container]') as Element,
-    estimateSize: () => ITEM_HEIGHT,
+    estimateSize: () => {
+      const remToPx = parseFloat(getComputedStyle(document.documentElement).fontSize);
+      return parseFloat(GRID_CONSTANTS.ITEM_HEIGHT) * remToPx;
+    },
     overscan: OVERSCAN,
   });
 
@@ -124,7 +130,7 @@ const DragDropGrid = <T extends DragDropItem>({
               <div
                 style={{
                   display: 'flex',
-                  gap: '1.5rem',
+                  gap: GRID_CONSTANTS.ITEM_GAP,
                   justifyContent: 'flex-start',
                   height: '100%',
                   alignItems: 'center',

frontend/src/components/pageEditor/PageEditor.tsx

@@ -31,6 +31,7 @@ import {
   BulkPageBreakCommand,
   UndoManager
 } from './commands/pageCommands';
+import { GRID_CONSTANTS } from './constants';
 import { usePageDocument } from './hooks/usePageDocument';
 import { usePageEditorState } from './hooks/usePageEditorState';
 
@@ -104,6 +105,9 @@ const PageEditor = ({
   // Grid container ref for positioning split indicators
   const gridContainerRef = useRef<HTMLDivElement>(null);
   
+  // State to trigger re-renders when container size changes
+  const [containerDimensions, setContainerDimensions] = useState({ width: 0, height: 0 });
+
   // Undo/Redo state
   const [canUndo, setCanUndo] = useState(false);
   const [canRedo, setCanRedo] = useState(false);
@@ -121,6 +125,28 @@ const PageEditor = ({
     updateUndoRedoState();
   }, [updateUndoRedoState]);
 
+  // Watch for container size changes to update split line positions
+  useEffect(() => {
+    const container = gridContainerRef.current;
+    if (!container) return;
+
+    const resizeObserver = new ResizeObserver((entries) => {
+      const entry = entries[0];
+      if (entry) {
+        setContainerDimensions({
+          width: entry.contentRect.width,
+          height: entry.contentRect.height
+        });
+      }
+    });
+
+    resizeObserver.observe(container);
+
+    return () => {
+      resizeObserver.disconnect();
+    };
+  }, []);
+
 
   // Interface functions for parent component
   const displayDocument = editedDocument || mergedPdfDocument;
@@ -576,18 +602,25 @@ const PageEditor = ({
             }}
           >
             {Array.from(splitPositions).map((position) => {
-              // Calculate the split line position based on grid layout
-              const ITEM_WIDTH = 320; // 20rem
-              const ITEM_HEIGHT = 340; // 20rem + gap
-              const ITEM_GAP = 24; // 1.5rem
-              const ITEMS_PER_ROW = 4; // Default, could be dynamic
+              // Match DragDropGrid's layout calculations exactly
+              const containerWidth = containerDimensions.width;
+              const remToPx = parseFloat(getComputedStyle(document.documentElement).fontSize);
+              const ITEM_WIDTH = parseFloat(GRID_CONSTANTS.ITEM_WIDTH) * remToPx;
+              const ITEM_HEIGHT = parseFloat(GRID_CONSTANTS.ITEM_HEIGHT) * remToPx;
+              const ITEM_GAP = parseFloat(GRID_CONSTANTS.ITEM_GAP) * remToPx;
               
-              const row = Math.floor(position / ITEMS_PER_ROW);
-              const col = position % ITEMS_PER_ROW;
+              // Calculate items per row using DragDropGrid's logic
+              const availableWidth = containerWidth - ITEM_GAP; // Account for first gap
+              const itemWithGap = ITEM_WIDTH + ITEM_GAP;
+              const itemsPerRow = Math.max(1, Math.floor(availableWidth / itemWithGap));
               
-              // Position after the current item
-              const leftPosition = (col + 1) * (ITEM_WIDTH + ITEM_GAP) - ITEM_GAP / 2;
-              const topPosition = row * ITEM_HEIGHT + 100; // Offset for header controls
+              // Calculate position within the grid (same as DragDropGrid)
+              const row = Math.floor(position / itemsPerRow);
+              const col = position % itemsPerRow;
+              
+              // Position split line between pages (after the current page)
+              const leftPosition = col * itemWithGap + ITEM_WIDTH + (ITEM_GAP / 2);
+              const topPosition = row * ITEM_HEIGHT;
 
               return (
                 <div
@@ -597,7 +630,7 @@ const PageEditor = ({
                     left: leftPosition,
                     top: topPosition,
                     width: '1px',
-                    height: '20rem', // Match item height
+                    height: GRID_CONSTANTS.ITEM_WIDTH, // Match item height
                     borderLeft: '1px dashed #3b82f6'
                   }}
                 />

frontend/src/components/pageEditor/constants.ts

@@ -0,0 +1,8 @@
+// Shared constants for PageEditor grid layout
+export const GRID_CONSTANTS = {
+  ITEM_WIDTH: '20rem', // page width
+  ITEM_HEIGHT: '21.5rem', // 20rem + 1.5rem gap
+  ITEM_GAP: '1.5rem', // gap between items
+  OVERSCAN_SMALL: 4, // Overscan for normal documents
+  OVERSCAN_LARGE: 8, // Overscan for large documents (>1000 pages)
+} as const;