Refactored FlashWidget, SaveKeyWidget and AtariVoxWidget

src/debugger/gui/AtariVoxWidget.cxx

@@ -35,22 +35,6 @@ void AtariVoxWidget::eraseCurrent()
   avox.myEEPROM->eraseCurrent();
 }
 
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void AtariVoxWidget::eraseAll()
-{
-  AtariVox& avox = static_cast<AtariVox&>(myController);
-  
-  avox.myEEPROM->eraseAll();
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-bool AtariVoxWidget::isUseDetected()
-{
-  AtariVox& avox = static_cast<AtariVox&>(myController);
-
-  return avox.myEEPROM->isUseDetected();
-}
-
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 bool AtariVoxWidget::isPageUsed(int page)
 {

src/debugger/gui/AtariVoxWidget.hxx

@@ -29,8 +29,6 @@ class AtariVoxWidget : public FlashWidget
     virtual ~AtariVoxWidget() = default;
 
  private:
-    void loadConfig() override { }
-
     void eraseCurrent();
     void eraseAll();
     bool isUseDetected();

src/debugger/gui/SaveKeyWidget.cxx

@@ -35,22 +35,6 @@ void SaveKeyWidget::eraseCurrent()
   skey.myEEPROM->eraseCurrent();
 }
 
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void SaveKeyWidget::eraseAll()
-{
-  SaveKey& skey = static_cast<SaveKey&>(myController);
-
-  skey.myEEPROM->eraseAll();
-}
-
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-bool SaveKeyWidget::isUseDetected()
-{
-  SaveKey& skey = static_cast<SaveKey&>(myController);
-
-  return skey.myEEPROM->isUseDetected();
-}
-
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 bool SaveKeyWidget::isPageUsed(int page)
 {

src/debugger/gui/SaveKeyWidget.hxx

@@ -29,8 +29,6 @@ class SaveKeyWidget : public FlashWidget
     virtual ~SaveKeyWidget() = default;
 
   private:
-    void loadConfig() override { }
-
     void eraseCurrent();
     void eraseAll();
     bool isUseDetected();

src/emucore/MT24LC256.cxx

@@ -55,7 +55,6 @@ MT24LC256::MT24LC256(const string& filename, const System& system)
     myDataFile(filename),
     myDataFileExists(false),
     myDataChanged(false),    
-    myUseDetected(false),
     jpee_mdat(0),
     jpee_sdat(0),
     jpee_mclk(0),
@@ -151,7 +150,6 @@ void MT24LC256::systemReset()
   myCyclesWhenSDASet = myCyclesWhenSCLSet = myCyclesWhenTimerSet =
     mySystem.cycles();
     
-  myUseDetected = false;
   memset(myPageHit, false, sizeof(myPageHit));
 }
 
@@ -252,7 +250,7 @@ void MT24LC256::jpee_data_stop()
     for (int i=3; i<jpee_pptr; i++)
     {
       myDataChanged = true;
-      myUseDetected = myPageHit[jpee_address / PAGE_SIZE] = true;
+      myPageHit[jpee_address / PAGE_SIZE] = true;
       myData[(jpee_address++) & jpee_sizemask] = jpee_packet[i];
       if (!(jpee_address & jpee_pagemask))
         break;  /* Writes can't cross page boundary! */
@@ -349,7 +347,7 @@ void MT24LC256::jpee_clock_fall()
         break;
       }
       jpee_state=3;
-      myUseDetected = myPageHit[jpee_address / PAGE_SIZE] = true;
+      myPageHit[jpee_address / PAGE_SIZE] = true;
       jpee_nb = (myData[jpee_address & jpee_sizemask] << 1) | 1;  /* Fall through */
       JPEE_LOG2("I2C_READ(%04X=%02X)",jpee_address,jpee_nb/2);
       [[fallthrough]];

src/emucore/MT24LC256.hxx

@@ -66,9 +66,7 @@ class MT24LC256
     /** Erase the pages used by the current ROM to known state ($FF) */
     void eraseCurrent();
 
-    /** Returns true if at least one EEPROM page has been detected for the current ROM */
+    /** Returns true if the page is used by the current ROM */
-    bool isUseDetected() const { return myUseDetected; }
-
     bool isPageUsed(int page) const;
 
   private:
@@ -94,7 +92,6 @@ class MT24LC256
 
     // Track which pages are used
     bool myPageHit[PAGE_NUM];
-    bool myUseDetected;
 
     // Cached state of the SDA and SCL pins on the last write
     bool mySDA, mySCL;

src/windows/FlashWidget.cxx

@@ -49,46 +49,28 @@ void FlashWidget::init(GuiObject* boss, const GUI::Font& font, int x, int y)
     ypos += lineHeight;
   }  
 
-  /*myEEPROMEraseCurrent = new ButtonWidget(boss, font, xpos, ypos,
+  xpos -= 8; ypos += 2;
-                                          "Erase EEPROM range", kEEPROMEraseCurrent);
+  myEEPROMEraseCurrent = new ButtonWidget(boss, font, xpos, ypos,
+                                          "Erase used pages", kEEPROMEraseCurrent);
   myEEPROMEraseCurrent->setTarget(this);
-  ypos += lineHeight + 8;
-  new StaticTextWidget(boss, ifont, xpos, ypos, "(*) Erases only the");
-  ypos += iLineHeight;
-  new StaticTextWidget(boss, ifont, xpos, ypos, "current ROM's range");
-
-  ypos += iLineHeight + 8;
-
-  myEEPROMEraseAll = new ButtonWidget(boss, font, xpos, ypos, 
-                                      myEEPROMEraseCurrent->getWidth(), myEEPROMEraseCurrent->getHeight(),
-                                      "Erase EEPROM", kEEPROMEraseAll);
-  myEEPROMEraseAll->setTarget(this);
-  ypos += lineHeight + 8;
-  new StaticTextWidget(boss, ifont, xpos, ypos, "(*) This will erase");
-  ypos += iLineHeight;
-  new StaticTextWidget(boss, ifont, xpos, ypos, "all EEPROM data!");
-
-  updateButtonState();*/
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 void FlashWidget::handleCommand(CommandSender*, int cmd, int, int)
 {
-  if(cmd == kEEPROMEraseAll) {
-    eraseAll();
-  }
   if(cmd == kEEPROMEraseCurrent) {
     eraseCurrent();
   }
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-void FlashWidget::drawWidget(bool hilite)
+// display the pages used by the current ROM and update erase button status
+void FlashWidget::loadConfig()
 {
   int useCount = 0, startPage = -1;
   for(int page = 0; page < MT24LC256::PAGE_NUM; page++)
   {
-    if(isPageUsed(page)/* || page == 0x21 || page == 0x22*/)
+    if(isPageUsed(page))
     {
       if (startPage == -1)
         startPage = page;
@@ -118,11 +100,6 @@ void FlashWidget::drawWidget(bool hilite)
       }
     }
   }
-  //updateButtonState();
-}
 
-// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+  myEEPROMEraseCurrent->setEnabled(useCount != 0);
-void FlashWidget::updateButtonState()
-{
-  //myEEPROMEraseCurrent->setEnabled(isUseDetected());
 }

src/windows/FlashWidget.hxx

@@ -32,28 +32,26 @@ public:
 
 protected:
   void init(GuiObject* boss, const GUI::Font& font, int x, int y);
-  void drawWidget(bool hilite) override;
   
 private:
-  ButtonWidget* myEEPROMEraseAll;
   ButtonWidget* myEEPROMEraseCurrent;
-  enum
+  enum { kEEPROMEraseCurrent = 'eeEC' };
-  {
-    kEEPROMEraseAll = 'eeER',
-    kEEPROMEraseCurrent = 'eeEC'
-  };
 
-  static constexpr uInt32 MAX_PAGES = 7;
+  static constexpr uInt32 MAX_PAGES = 5;
   StaticTextWidget* myPage[MAX_PAGES];
 
 private:  
-  void loadConfig() override {}
+  void loadConfig() override;
   void handleCommand(CommandSender* sender, int cmd, int data, int id) override;
-  void updateButtonState();
   
+  /**
+    Erase the EEPROM pages used by the current ROM
+  */
   virtual void eraseCurrent() = 0;
-  virtual void eraseAll() = 0;
+
-  virtual bool isUseDetected() = 0;
+  /**
+    Check if a page is used by the current ROM
+  */
   virtual bool isPageUsed(int page) = 0;
 
   // Following constructors and assignment operators not supported