Added vertical slider logic.

src/drivers/Qt/HexEditor.cpp

@@ -144,6 +144,7 @@ HexEditorDialog_t::HexEditorDialog_t(QWidget *parent)
 	: QDialog( parent )
 {
 	QVBoxLayout *mainLayout;
+	QGridLayout *grid;
 	QMenuBar *menuBar;
 	QMenu *fileMenu;
 	QAction *saveROM;
@@ -173,13 +174,28 @@ HexEditorDialog_t::HexEditorDialog_t(QWidget *parent)
 	//-----------------------------------------------------------------------
 	mainLayout = new QVBoxLayout();
 
+	grid   = new QGridLayout(this);
 	editor = new QHexEdit( &mb, this);
+	vbar   = new QScrollBar( Qt::Vertical, this );
+	hbar   = new QScrollBar( Qt::Horizontal, this );
 
-	mainLayout->setMenuBar( menuBar );
-	mainLayout->addWidget( editor );
+	grid->setMenuBar( menuBar );
+
+	grid->addWidget( editor, 0, 0 );
+	grid->addWidget( vbar  , 0, 1 );
+	grid->addWidget( hbar  , 1, 0 );
+	mainLayout->addLayout( grid );
 
 	setLayout( mainLayout );
 
+	hbar->setMinimum(0);
+	hbar->setMaximum(100);
+	vbar->setMinimum(0);
+	vbar->setMaximum( 0x10000 / 16 );
+
+   //connect( vbar, SIGNAL(sliderMoved(int)), this, SLOT(vbarMoved(int)) );
+   connect( vbar, SIGNAL(valueChanged(int)), this, SLOT(vbarChanged(int)) );
+
 	mode = MODE_NES_RAM;
 	memAccessFunc = getRAM;
 	redraw = false;
@@ -205,6 +221,18 @@ void HexEditorDialog_t::closeWindow(void)
    done(0);
 }
 //----------------------------------------------------------------------------
+void HexEditorDialog_t::vbarMoved(int value)
+{
+	printf("VBar Moved: %i\n", value);
+	editor->setLine( value );
+}
+//----------------------------------------------------------------------------
+void HexEditorDialog_t::vbarChanged(int value)
+{
+	printf("VBar Changed: %i\n", value);
+	editor->setLine( value );
+}
+//----------------------------------------------------------------------------
 void HexEditorDialog_t::setMode(int new_mode)
 {
 	if ( mode != new_mode )
@@ -331,6 +359,7 @@ QHexEdit::QHexEdit(memBlock_t *blkPtr, QWidget *parent)
 
 	calcFontData();
 
+	lineOffset  = 0;
 	cursorPosX  = 0;
 	cursorPosY  = 0;
 	cursorBlink = true;
@@ -352,10 +381,10 @@ void QHexEdit::calcFontData(void)
 #else
     pxCharWidth = metrics.width(QLatin1Char('2'));
 #endif
-    pxCharHeight = metrics.height();
+    pxCharHeight  = metrics.height();
 	 pxLineSpacing = metrics.lineSpacing() * 1.25;
     pxLineLead    = pxLineSpacing - pxCharHeight;
-	 pxXoffset     = pxCharHeight;
+	 pxXoffset     = pxCharWidth;
 	 pxYoffset     = pxLineSpacing * 2.0;
 	 pxHexOffset   = pxXoffset + (7*pxCharWidth);
     pxHexAscii    = pxHexOffset + (16*3*pxCharWidth) + (2*pxCharWidth);
@@ -366,6 +395,11 @@ void QHexEdit::calcFontData(void)
     //_pxSelectionSub = _pxCharHeight / 5;
 }
 //----------------------------------------------------------------------------
+void QHexEdit::setLine( int newLineOffset )
+{
+	lineOffset = newLineOffset;
+}
+//----------------------------------------------------------------------------
 void QHexEdit::keyPressEvent(QKeyEvent *event)
 {
    printf("Hex Window Key Press: 0x%x \n", event->key() );
@@ -381,6 +415,7 @@ void QHexEdit::keyReleaseEvent(QKeyEvent *event)
 void QHexEdit::paintEvent(QPaintEvent *event)
 {
 	int x, y, w, h, row, col, nrow, addr;
+	int maxLines, maxLineOffset;
 	char txt[32];
 	QPainter painter(this);
 
@@ -390,7 +425,7 @@ void QHexEdit::paintEvent(QPaintEvent *event)
 
 	//painter.fillRect( 0, 0, w, h, QColor("white") );
 
-	nrow = (h / pxLineSpacing) + 1;
+	nrow = (h / pxLineSpacing);
 
 	if ( nrow < 1 ) nrow = 1;
 
@@ -430,8 +465,16 @@ void QHexEdit::paintEvent(QPaintEvent *event)
 
 	painter.setPen( this->palette().color(QPalette::WindowText));
 
+	maxLines = (mb->size() / 16);
+	maxLineOffset = maxLines - nrow + 2;
+
+	if ( lineOffset > maxLineOffset )
+	{
+		lineOffset = maxLineOffset;
+	}
+
 	//painter.setPen( QColor("white") );
-	addr = 0;
+	addr = lineOffset * 16;
 	y = pxYoffset;
 
 	for ( row=0; row < nrow; row++)
@@ -445,11 +488,15 @@ void QHexEdit::paintEvent(QPaintEvent *event)
 
 		for (col=0; col<16; col++)
 		{
-			sprintf( txt, "%02X", mb->buf[addr+col].data );
-			painter.drawText( x, y, txt );
+			if ( addr < mb->size() )
+			{
+				sprintf( txt, "%02X", mb->buf[addr].data );
+				painter.drawText( x, y, txt );
+			}
 			x += (3*pxCharWidth);
+			addr++;
 		}
-		addr += 16;
+		//addr += 16;
 		y += pxLineSpacing;
 	}
 

src/drivers/Qt/HexEditor.h

@@ -46,6 +46,8 @@ class QHexEdit : public QWidget
 		QHexEdit(memBlock_t *blkPtr, QWidget *parent = 0);
 		~QHexEdit(void);
 
+		void setLine( int newLineOffset );
+		void setAddr( int newAddrOffset );
 	protected:
 		void paintEvent(QPaintEvent *event);
 		void keyPressEvent(QKeyEvent *event);
@@ -57,6 +59,7 @@ class QHexEdit : public QWidget
 
 		memBlock_t *mb;
 
+		int lineOffset;
 		int pxCharWidth;
 		int pxCharHeight;
 		int pxCursorHeight;
@@ -97,8 +100,10 @@ class HexEditorDialog_t : public QDialog
 		int  checkMemActivity(void);
 		int  calcVisibleRange( int *start_out, int *end_out, int *center_out );
 
-		QHexEdit  *editor;
-		QTimer    *periodicTimer;
+		QScrollBar *vbar;
+		QScrollBar *hbar;
+		QHexEdit   *editor;
+		QTimer     *periodicTimer;
 
 		int mode;
 		//int memSize;
@@ -116,5 +121,7 @@ class HexEditorDialog_t : public QDialog
       void closeWindow(void);
 	private slots:
 		void updatePeriodic(void);
+		void vbarMoved(int value);
+		void vbarChanged(int value);
 
 };