From 58e0585b9bdcabc7bd08184ca2711ed5dbc56db2 Mon Sep 17 00:00:00 2001
From: ZXGuesser <alistair@zxnet.co.uk>
Date: Wed, 17 Jul 2019 22:56:21 +0100
Subject: [PATCH] set erase and update flags when a file has changed and the
 page gets reloaded by filemonitor

---
 filemonitor.cpp | 1 +
 packetmag.cpp   | 2 ++
 ttxpage.cpp     | 3 ++-
 ttxpage.h       | 4 ++++
 4 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/filemonitor.cpp b/filemonitor.cpp
index f2a5ccf..ffe5613 100644
--- a/filemonitor.cpp
+++ b/filemonitor.cpp
@@ -114,6 +114,7 @@ void FileMonitor::run()
                             // lock
                             q->LoadPage(name); // What if this fails? We can see the bool. What to do ?
                             q->IncrementUpdateCount();
+                            q->SetFileChangedFlag();
                             q->GetPageCount(); // renumber the subpages
                             int mag=(q->GetPageNumber() >> 16) & 0x7;
                             
diff --git a/packetmag.cpp b/packetmag.cpp
index e1b3c7a..61d39b4 100644
--- a/packetmag.cpp
+++ b/packetmag.cpp
@@ -168,6 +168,8 @@ Packet* PacketMag::GetPacket(Packet* p)
                 if (_page->Changed())
                 {
                   _status|=PAGESTATUS_C8_UPDATE;
+                  
+                  _status|=PAGESTATUS_C4_ERASEPAGE; // also set the erase flag
                 }
             }
             
diff --git a/ttxpage.cpp b/ttxpage.cpp
index db5c4e7..08cd3c9 100644
--- a/ttxpage.cpp
+++ b/ttxpage.cpp
@@ -80,7 +80,8 @@ TTXPage::TTXPage(std::string filename) :
 
 bool TTXPage::Changed()
 {
-  bool changed=false;
+  bool changed=_fileChanged; // begin with file change state
+  _fileChanged=false; // clear the flag
   for (uint8_t row=1;row<=MAXROW;row++)
   {
 		TTXLine* line=GetRow(row);
diff --git a/ttxpage.h b/ttxpage.h
index a186006..02d8a97 100644
--- a/ttxpage.h
+++ b/ttxpage.h
@@ -225,6 +225,8 @@ class TTXPage
          *  This is NOT the same as pageChanged.
          */
         bool Changed();
+        
+        void SetFileChangedFlag(){_fileChanged=true;};
 
         void SetSelected(bool value){_Selected=value;}; /// Set the selected state to value
         bool Selected(){return _Selected;}; /// Return the selected state
@@ -286,6 +288,8 @@ class TTXPage
         bool m_LoadTTX(std::string filename);
 
         bool _Selected; /// True if this page has been selected.
+        
+        bool _fileChanged; // page was reloaded by the filemonitor
 
 };