【幻灯片】鼠标样式变化问题

PDF Office/PDF Master/Class/PDFWindowController/PDFListView/CPDFListViewExtension/CPDFListView+Event.m

@@ -285,7 +285,7 @@ static inline CPDFAreaOfInterest CAreaOfInterestForResizeHandle(CRectEdges mask,
 
 - (void)mouseMoved:(NSEvent *)event {
     if(self.isPresentationMode) {
-        if(self.presentationDrawView.isHidden == NO) {
+        if(self.presentationDrawView && self.presentationDrawView.isHidden == NO) {
             NSImage *cursorImage = [[NSImage imageNamed:@"CPDFListViewImageNameCursorsLinkDestination"] copy];
             NSCursor * cursor = [[NSCursor alloc] initWithImage:cursorImage hotSpot:NSMakePoint(8.0, 8.0)];
             [cursor set];
@@ -296,7 +296,7 @@ static inline CPDFAreaOfInterest CAreaOfInterestForResizeHandle(CRectEdges mask,
         }
         return;
     } else {
-        if(self.presentationDrawView.isHidden == NO) {
+        if(self.presentationDrawView && self.presentationDrawView.isHidden == NO) {
             NSImage *cursorImage = [[NSImage imageNamed:@"CPDFListViewImageNameCursorsLinkDestination"] copy];
             NSCursor * cursor = [[NSCursor alloc] initWithImage:cursorImage hotSpot:NSMakePoint(8.0, 8.0)];
             [cursor set];
@@ -632,7 +632,7 @@ static inline CPDFAreaOfInterest CAreaOfInterestForResizeHandle(CRectEdges mask,
     if(self.isPresentationMode) {
         return nil;
     } else {
-        if(self.presentationDrawView.isHidden == NO) {
+        if(self.presentationDrawView && self.presentationDrawView.isHidden == NO) {
             return nil;
         }
     }
@@ -1345,6 +1345,7 @@ static inline CPDFAreaOfInterest CAreaOfInterestForResizeHandle(CRectEdges mask,
                                    eventNumber:0
                                     clickCount:1
                                       pressure:0.0];
+    
     [self setCursorForAreaOfInterest:[self areaOfInterestForMouse:theEvent]];
 }