├── .gitignore ├── README.md ├── bindiff-qt.pro ├── binfileview.cpp ├── binfileview.h ├── license.txt ├── main.cpp ├── mainwindow.cpp ├── mainwindow.h └── mainwindow.ui /.gitignore: -------------------------------------------------------------------------------- 1 | *.user* 2 | build/ 3 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # bindiff-qt 2 | An application for comparing two binary files 3 | 4 | This small application is made for visually diffing two binary files. Currently, differing bytes are shown on red while equal bytes are black. Files can be opened by dropping them onto respective view area, upper or lower. Alternatively, file can be opened via view's context menu. 5 | 6 | The layout and look&feel for view widget is heavily inspired by [Okteta](https://utils.kde.org/projects/okteta/) and also some influences are from [qhexedit2](https://github.com/Simsys/qhexedit2) & [binview](https://github.com/vurdalakov/abandoned). However, since none of the view widgets of those projects were not suitable mutual diffing of two files, this application and it's components are complete rewrite. 7 | 8 | File model is simple mmap'ped files and also buffer for data containing difference coloring is anonymous (not backed by real file) mmap in virtual address space. Diffing is done 'on demand', i.e. only when user scrolls files and content of the views change. This makes it possibe to diff >2GB files efficiently. 9 | 10 | Enjoy ;-) 11 | -------------------------------------------------------------------------------- /bindiff-qt.pro: -------------------------------------------------------------------------------- 1 | #------------------------------------------------- 2 | # 3 | # Project created by QtCreator 2016-08-20T15:08:43 4 | # 5 | #------------------------------------------------- 6 | 7 | QT += core gui 8 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 9 | 10 | TARGET = bindiff-qt 11 | 12 | TEMPLATE = app 13 | 14 | *-g++*:QMAKE_CXXFLAGS += -Wall -Weffc++ -Wextra -Wconversion -Wsign-conversion -std=c++14 15 | 16 | SOURCES += main.cpp\ 17 | mainwindow.cpp \ 18 | binfileview.cpp 19 | 20 | HEADERS += mainwindow.h \ 21 | binfileview.h 22 | 23 | FORMS += mainwindow.ui 24 | 25 | OTHER_FILES += license.txt 26 | 27 | INSTALLS += target 28 | 29 | unix{ 30 | target.path = /bin 31 | message( The executable will be installed to $$target.path ) 32 | } 33 | -------------------------------------------------------------------------------- /binfileview.cpp: -------------------------------------------------------------------------------- 1 | //***************************************************************************** 2 | // 3 | // binfileview.cpp 4 | // Copyright(c) 2016 Juha T Nikkanen 5 | // 6 | // --- Legal stuff --- 7 | // 8 | // This program is free software; you can redistribute it and/or 9 | // modify it under the terms of the GNU Lesser General Public 10 | // License as published by the Free Software Foundation; either 11 | // version 2.1 of the License, or (at your option) any later version. 12 | // 13 | // This program is distributed in the hope that it will be useful, 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 | // Lesser General Public License for more details. 17 | // 18 | // You should have received a copy of the GNU Lesser General Public 19 | // License along with this program; if not, write to the Free Software 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 | // 22 | //***************************************************************************** 23 | 24 | #include "binfileview.h" 25 | 26 | #include 27 | #include 28 | #include 29 | #include 30 | #include 31 | #include 32 | #include 33 | #include 34 | #include 35 | #include 36 | #include 37 | #include 38 | #include 39 | 40 | BinFileView::BinFileView( QWidget* parent ) 41 | : QAbstractScrollArea( parent ), 42 | _contextMenu( new QMenu( this ) ), 43 | _contextAction( new QAction( tr( "&Open" ), this ) ), 44 | _data( nullptr ), 45 | _colorData( nullptr ), 46 | _size( 0 ), 47 | _upperMask( 0xffff0000LL ), 48 | _lowerMask( 0x0000ffffLL ), 49 | _addend( 0 ), 50 | _addressChars( 8 ), 51 | _lineCount( 0 ), 52 | _linesOnViewPort( BinFileView::minimumOfLines ), 53 | _byteGroups( BinFileView::minimumOfByteGroups ), 54 | _bytesPerLine( _byteGroups * BinFileView::bytesPerGroup ), 55 | _leftMargin( 0 ), 56 | _rightMargin( 0 ), 57 | _bottomMargin( 0 ), 58 | _byteWidth( 0 ), 59 | _groupWidth( 0 ), 60 | _addressAreaWidth( 0 ), 61 | _hexAreaWidth( 0 ), 62 | _asciiAreaWidth( 0 ), 63 | _groupGap( 0 ), 64 | _vscrollBarWidth( 0 ) 65 | { 66 | _contextMenu->addAction( _contextAction ); 67 | connect( _contextAction, &QAction::triggered, [=](){ emit fileOpenRequested( this ); } ); 68 | connect( this, SIGNAL( customContextMenuRequested( const QPoint& ) ), \ 69 | this, SLOT( showContextMenu( const QPoint& ) ) ); 70 | setSizeAdjustPolicy( QAbstractScrollArea::AdjustToContents ); 71 | setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding ); 72 | } 73 | 74 | BinFileView::~BinFileView() 75 | { 76 | } 77 | 78 | QSize BinFileView::viewportSizeHint() const 79 | { 80 | return( QSize( preFitWidth( BinFileView::minimumOfByteGroups ) + _vscrollBarWidth, 81 | fontMetrics().height() * BinFileView::minimumOfLines + _bottomMargin ) ); 82 | } 83 | 84 | void BinFileView::setFont( QFont font ) 85 | { 86 | if( !font.fixedPitch() ) { 87 | font.setFixedPitch( true ); 88 | } 89 | 90 | QWidget::setFont( font ); 91 | 92 | adjust(); 93 | viewport()->update(); 94 | } 95 | 96 | const uchar* BinFileView::data() 97 | { 98 | return _data; 99 | } 100 | 101 | void BinFileView::setData( const uchar* data, const qint64 size ) 102 | { 103 | _data = data; 104 | _size = size; 105 | 106 | // Give others, possibly connected views a change to adjust 107 | // parameters affecting view port width & data layout... 108 | int oldAddressChars = _addressChars; 109 | 110 | if( _size > UINT_MAX ) 111 | setAddressCharacters( 16 ); 112 | else 113 | setAddressCharacters( 8 ); 114 | 115 | // ...and signal those views 116 | if( oldAddressChars < _addressChars ) 117 | emit defaultVisualsChanged( this ); 118 | 119 | _lineCount = static_cast( _size / _bytesPerLine ); 120 | if( _size % _bytesPerLine ) 121 | _lineCount += 1; 122 | 123 | _linesOnViewPort = viewport()->height() / fontMetrics().height(); 124 | verticalScrollBar()->setRange( 0, _lineCount - _linesOnViewPort ); 125 | verticalScrollBar()->setPageStep( _linesOnViewPort ); 126 | 127 | viewport()->update(); 128 | } 129 | 130 | void BinFileView::setColoringData( uchar* data ) 131 | { 132 | _colorData = data; 133 | viewport()->update(); 134 | } 135 | 136 | void BinFileView::setAddressCharacters( const int chars ) 137 | { 138 | _addressChars = chars; 139 | if( _addressChars & 1 ) 140 | _addressChars++; 141 | 142 | // Calculate upper and lower half masks 143 | _lowerMask = 0xf; 144 | for( int t( 1 ); t < _addressChars / 2; t++ ) { 145 | _lowerMask |= static_cast( 0xf << (4 * t) ); 146 | } 147 | _upperMask = _lowerMask << (4 * _addressChars / 2); 148 | 149 | adjust(); 150 | } 151 | 152 | qint64 BinFileView::addressAddend() 153 | { 154 | return static_cast( verticalScrollBar()->sliderPosition() ) * _bytesPerLine; 155 | } 156 | 157 | void BinFileView::showContextMenu( const QPoint& pos ) 158 | { 159 | _contextMenu->exec( mapToGlobal( pos ) ); 160 | } 161 | 162 | void BinFileView::synchronizeVisuals( BinFileView* view ) 163 | { 164 | setAddressCharacters( view->addressCharacters() ); 165 | 166 | calculateNumOfByteGroups(); 167 | 168 | horizontalScrollBar()->setRange( 0, preFitWidth( _byteGroups ) - viewport()->width() ); 169 | horizontalScrollBar()->setPageStep( viewport()->width() ); 170 | 171 | viewport()->update(); 172 | } 173 | 174 | void BinFileView::dragEnterEvent( QDragEnterEvent* event ) 175 | { 176 | if( event->mimeData()->hasUrls() ) { 177 | event->acceptProposedAction(); 178 | } 179 | } 180 | 181 | void BinFileView::dropEvent( QDropEvent* event ) 182 | { 183 | QList urls = event->mimeData()->urls(); 184 | if( urls.count() > 0 ) { 185 | emit fileDropped( urls.at( 0 ).toLocalFile(), this ); 186 | } 187 | // In view instance, we can ignore the event data because we 188 | // have passed it to controller via signal 189 | event->setDropAction( Qt::IgnoreAction ); 190 | event->accept(); 191 | } 192 | 193 | void BinFileView::resizeEvent( QResizeEvent* ) 194 | { 195 | _linesOnViewPort = ( viewport()->height() - _bottomMargin ) / fontMetrics().height(); 196 | 197 | if( _vscrollBarWidth != verticalScrollBar()->width() ) { 198 | _vscrollBarWidth = verticalScrollBar()->width(); 199 | updateGeometry(); 200 | } 201 | 202 | calculateNumOfByteGroups(); 203 | 204 | horizontalScrollBar()->setRange( 0, preFitWidth( _byteGroups ) - viewport()->width() ); 205 | horizontalScrollBar()->setPageStep( viewport()->width() ); 206 | 207 | verticalScrollBar()->setRange( 0, _lineCount - _linesOnViewPort ); 208 | verticalScrollBar()->setPageStep( _linesOnViewPort ); 209 | verticalScrollBar()->setSliderPosition( static_cast( _addend / _bytesPerLine ) ); 210 | 211 | emit fileViewContentChanged( this ); 212 | } 213 | 214 | void BinFileView::paintEvent( QPaintEvent* event ) 215 | { 216 | QPainter painter( viewport() ); 217 | 218 | int xOffset = horizontalScrollBar()->value(); 219 | 220 | painter.fillRect( QRect( -xOffset, event->rect().top(), _addressAreaWidth, height() ), viewport()->palette().color( QPalette::Button ) ); 221 | 222 | painter.setPen( viewport()->palette().color( QPalette::WindowText ) ); 223 | painter.drawLine( _addressAreaWidth + _hexAreaWidth - xOffset, event->rect().top(), _addressAreaWidth + _hexAreaWidth -xOffset, event->rect().height() ); 224 | 225 | if( _lineCount ) { 226 | _addend = addressAddend(); 227 | 228 | int yIncr = fontMetrics().height(); 229 | int yPos = yIncr; 230 | for( qint64 row( 0 ); row < qMin( _linesOnViewPort, _lineCount ); row++, yPos += yIncr ) { 231 | qint64 addr = row * static_cast( _bytesPerLine ) + _addend; 232 | QString addrString = QString( "%1:%2" ).arg( ( addr & _upperMask ) >> (4 * _addressChars / 2), _addressChars / 2, 16, QChar( '0' ) ).toUpper() \ 233 | .arg( addr & _lowerMask, _addressChars / 2, 16, QChar( '0' ) ).toUpper(); 234 | 235 | painter.setPen( viewport()->palette().color( QPalette::ButtonText ) ); 236 | painter.drawText( _leftMargin - xOffset, yPos, addrString ); 237 | 238 | painter.setPen( viewport()->palette().color( QPalette::WindowText ) ); 239 | 240 | int xPos = _addressAreaWidth + _leftMargin - xOffset; 241 | for( qint64 b( 0 ); b < qMin( static_cast( _bytesPerLine ), _size - addr ); b++, xPos += _byteWidth ) { 242 | uchar binByte = *( _data + b + addr ); 243 | QString byte = QString( "%1" ).arg( binByte, 2, 16, QChar( '0' ) ).toUpper(); 244 | if( b > 0 && b % BinFileView::bytesPerGroup == 0 ) 245 | xPos += _groupGap; 246 | if( _colorData ) 247 | painter.setPen( (Qt::GlobalColor)*( _colorData + b + addr ) ); 248 | painter.drawText( xPos, yPos, byte ); 249 | } 250 | 251 | xPos = _addressAreaWidth + _hexAreaWidth + _leftMargin - xOffset; 252 | int charWidth = fontMetrics().averageCharWidth(); 253 | for( qint64 c( 0 ); c < qMin( (qint64)_bytesPerLine, _size - addr ); c++, xPos += charWidth ) { 254 | uchar binByte = *( _data + c + addr ); 255 | if( _colorData ) 256 | painter.setPen( (Qt::GlobalColor)*( _colorData + c + addr ) ); 257 | painter.drawText( xPos, yPos, isprint( binByte ) ? QString( binByte ) : QString( '.' ) ); 258 | } 259 | } 260 | painter.setPen( viewport()->palette().color( QPalette::WindowText ) ); 261 | } else { 262 | drawEmptyViewInstructions( painter ); 263 | } 264 | } 265 | 266 | void BinFileView::scrollContentsBy( int, int ) 267 | { 268 | emit fileViewContentChanged( this ); 269 | viewport()->update(); 270 | } 271 | 272 | void BinFileView::calculateNumOfByteGroups() 273 | { 274 | // Calculate new # of byte groups 275 | while( viewport()->width() > preFitWidth( _byteGroups + 1 ) || viewport()->width() < preFitWidth( _byteGroups ) ) { 276 | if( viewport()->width() > preFitWidth( _byteGroups + 1 ) ) 277 | adjust( ++_byteGroups ); 278 | else if( viewport()->width() < preFitWidth( _byteGroups ) && _byteGroups > BinFileView::minimumOfByteGroups ) 279 | adjust( --_byteGroups ); 280 | else { 281 | adjust( BinFileView::minimumOfByteGroups ); 282 | _byteGroups = BinFileView::minimumOfByteGroups; 283 | break; 284 | } 285 | } 286 | } 287 | 288 | void BinFileView::adjust( const int newbyteGroups ) 289 | { 290 | if( newbyteGroups ) { 291 | _byteGroups = newbyteGroups; 292 | _bytesPerLine = _byteGroups * BinFileView::bytesPerGroup; 293 | } 294 | 295 | _lineCount = static_cast( _size / _bytesPerLine ); 296 | if( _size % _bytesPerLine ) 297 | _lineCount += 1; 298 | 299 | QString address = QString( "%1:%2" ).arg( 0, _addressChars / 2, 16, QChar( '0' ) ) \ 300 | .arg( 0, _addressChars / 2, 16, QChar( '0' ) ); 301 | QString byte = QString( "%1" ).arg( 0, 2, 16, QChar( '0' ) ); 302 | 303 | // Set side margins to half of a character width, 304 | // bottom margin half of font height 305 | _leftMargin = fontMetrics().averageCharWidth() / 2; 306 | _rightMargin = _leftMargin; 307 | _bottomMargin = fontMetrics().height() / 2; 308 | _byteWidth = fontMetrics().width( byte ) + _leftMargin; 309 | _addressAreaWidth = fontMetrics().width( address ) + _leftMargin + _rightMargin; 310 | _groupGap = fontMetrics().averageCharWidth(); 311 | _groupWidth = BinFileView::bytesPerGroup * _byteWidth; 312 | _hexAreaWidth = _byteGroups * _groupWidth + (_byteGroups - 1) * _groupGap + _rightMargin; 313 | _asciiAreaWidth = _bytesPerLine * fontMetrics().averageCharWidth() + _leftMargin + _rightMargin; 314 | } 315 | 316 | int BinFileView::preFitWidth( const int byteGroups ) const 317 | { 318 | int newHexAreaWidth = byteGroups * _groupWidth + (byteGroups - 1) * _groupGap + _rightMargin; 319 | int newAsciiAreaWidth = byteGroups * BinFileView::bytesPerGroup * fontMetrics().averageCharWidth() + _leftMargin + _rightMargin; 320 | return( _addressAreaWidth + newHexAreaWidth + newAsciiAreaWidth ); 321 | } 322 | 323 | void BinFileView::drawEmptyViewInstructions( QPainter& painter ) 324 | { 325 | QString help1( tr( "< Drag & drop or >" ) ); 326 | QString help2( tr( "< use ctx menu >" ) ); 327 | QString help3( tr( "< to open a file >" ) ) ; 328 | 329 | int xPos = _addressAreaWidth + _hexAreaWidth / 2 - fontMetrics().width( help1 ) / 2; 330 | int yIncr = fontMetrics().height(); 331 | int yPos = ( viewport()->height() + yIncr / 2 - 3 * yIncr + yIncr ) / 2; 332 | painter.drawText( xPos, yPos, help1 ); 333 | yPos += yIncr; 334 | int xPos2 = _addressAreaWidth + _hexAreaWidth / 2 - fontMetrics().width( help2 ) / 2; 335 | painter.drawText( xPos2, yPos, help2 ); 336 | yPos += yIncr; 337 | painter.drawText( xPos, yPos, help3 ); 338 | } 339 | -------------------------------------------------------------------------------- /binfileview.h: -------------------------------------------------------------------------------- 1 | //***************************************************************************** 2 | // 3 | // binfileview.h 4 | // Copyright(c) 2016 Juha T Nikkanen 5 | // 6 | // --- Legal stuff --- 7 | // 8 | // This program is free software; you can redistribute it and/or 9 | // modify it under the terms of the GNU Lesser General Public 10 | // License as published by the Free Software Foundation; either 11 | // version 2.1 of the License, or (at your option) any later version. 12 | // 13 | // This program is distributed in the hope that it will be useful, 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 | // Lesser General Public License for more details. 17 | // 18 | // You should have received a copy of the GNU Lesser General Public 19 | // License along with this program; if not, write to the Free Software 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 | // 22 | //***************************************************************************** 23 | 24 | #ifndef BINFILEVIEW_H 25 | #define BINFILEVIEW_H 26 | 27 | #include 28 | 29 | class QMenu; 30 | class QAction; 31 | 32 | class BinFileView : public QAbstractScrollArea 33 | { 34 | Q_OBJECT 35 | 36 | public: 37 | enum Constants { 38 | bytesPerGroup = 4, 39 | minimumOfByteGroups = 4, 40 | minimumOfLines = 16 41 | }; 42 | 43 | BinFileView( QWidget* parent = nullptr ); 44 | virtual ~BinFileView(); 45 | 46 | virtual QSize viewportSizeHint() const; 47 | virtual void setFont( QFont ); 48 | const uchar* data(); 49 | void setData( const uchar*, const qint64 ); 50 | void setColoringData( uchar* ); 51 | inline int capacity() { return _linesOnViewPort * _bytesPerLine; } 52 | inline int addressCharacters() { return _addressChars; } 53 | void setAddressCharacters( const int ); 54 | qint64 addressAddend(); 55 | 56 | signals: 57 | void fileDropped( QString, BinFileView* ); 58 | void fileOpenRequested( BinFileView* ); 59 | void fileViewContentChanged( BinFileView* ); 60 | void defaultVisualsChanged( BinFileView* ); 61 | 62 | public slots: 63 | void showContextMenu( const QPoint& ); 64 | void synchronizeVisuals( BinFileView* ); 65 | 66 | protected: 67 | virtual void dragEnterEvent( QDragEnterEvent* ); 68 | virtual void dropEvent( QDropEvent* ); 69 | virtual void resizeEvent( QResizeEvent* ); 70 | virtual void paintEvent( QPaintEvent* ); 71 | virtual void scrollContentsBy( int, int ); 72 | 73 | private: // Methods 74 | void calculateNumOfByteGroups(); 75 | void adjust( const int newByteGroups = 0 ); 76 | int preFitWidth( const int ) const; 77 | void drawEmptyViewInstructions( QPainter& ); 78 | 79 | private: // No copying 80 | BinFileView( const BinFileView& ); 81 | BinFileView& operator=( const BinFileView& ); 82 | 83 | private: // Data 84 | QFont _font; 85 | QMenu* _contextMenu; 86 | QAction* _contextAction; 87 | const uchar* _data; // ptr to raw binary data, not owned 88 | const uchar* _colorData; 89 | qint64 _size; // accessible file size 90 | qint64 _upperMask; // masks for address area, address is drawn 91 | qint64 _lowerMask; // like %0nX:%0nX where n is _addressChars / 2 92 | qint64 _addend; 93 | int _addressChars; // # of characters on address field 94 | int _lineCount; // == division of size per # of bytes on one line 95 | int _linesOnViewPort; // # of lines viewport is capable to draw 96 | int _byteGroups; 97 | int _bytesPerLine; 98 | 99 | // Pixel measures 100 | int _leftMargin; 101 | int _rightMargin; 102 | int _bottomMargin; 103 | int _byteWidth; 104 | int _groupWidth; 105 | int _addressAreaWidth; 106 | int _hexAreaWidth; 107 | int _asciiAreaWidth; 108 | int _groupGap; 109 | // To fine tune widget viewport minimum size 110 | int _vscrollBarWidth; 111 | }; 112 | 113 | #endif // BINFILEVIEW_H 114 | -------------------------------------------------------------------------------- /license.txt: -------------------------------------------------------------------------------- 1 | GNU LESSER GENERAL PUBLIC LICENSE 2 | Version 2.1, February 1999 3 | 4 | Copyright (C) 1991, 1999 Free Software Foundation, Inc. 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | [This is the first released version of the Lesser GPL. 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See the GNU 16 | // Lesser General Public License for more details. 17 | // 18 | // You should have received a copy of the GNU Lesser General Public 19 | // License along with this program; if not, write to the Free Software 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 | // 22 | //***************************************************************************** 23 | 24 | #include "mainwindow.h" 25 | #include 26 | #include 27 | 28 | int main( int argc, char* argv[] ) 29 | { 30 | QFileInfo execFile( argv[0] ); 31 | QCoreApplication::setApplicationName( execFile.fileName() ); 32 | QApplication a( argc, argv ); 33 | MainWindow w; 34 | w.show(); 35 | 36 | return a.exec(); 37 | } 38 | -------------------------------------------------------------------------------- /mainwindow.cpp: -------------------------------------------------------------------------------- 1 | //***************************************************************************** 2 | // 3 | // mainwindow.cpp 4 | // Copyright(c) 2016 Juha T Nikkanen 5 | // 6 | // --- Legal stuff --- 7 | // 8 | // This program is free software; you can redistribute it and/or 9 | // modify it under the terms of the GNU Lesser General Public 10 | // License as published by the Free Software Foundation; either 11 | // version 2.1 of the License, or (at your option) any later version. 12 | // 13 | // This program is distributed in the hope that it will be useful, 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 | // Lesser General Public License for more details. 17 | // 18 | // You should have received a copy of the GNU Lesser General Public 19 | // License along with this program; if not, write to the Free Software 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 | // 22 | //***************************************************************************** 23 | 24 | #include "mainwindow.h" 25 | #include "ui_mainwindow.h" 26 | 27 | #include 28 | #include 29 | #include 30 | #include 31 | 32 | MainWindow::MainWindow( QWidget *parent ) : 33 | QMainWindow( parent ), 34 | ui( new Ui::MainWindow ), 35 | _diffMap( nullptr ), 36 | _diffMapSize( 0 ) 37 | { 38 | ui->setupUi( this ); 39 | 40 | setWindowTitle( QCoreApplication::applicationName() ); 41 | 42 | // ui->binFileView1->setAcceptDrops( true ); 43 | // ui->binFileView2->setAcceptDrops( true ); 44 | 45 | ui->binFileView1->setFont( QFont( "Monospace", 10 ) ); 46 | ui->binFileView2->setFont( QFont( "Monospace", 10 ) ); 47 | 48 | // Cross-connect vertical & horizontal scroll bars 49 | connect( ui->binFileView1->verticalScrollBar(), \ 50 | SIGNAL( valueChanged( int ) ), \ 51 | ui->binFileView2->verticalScrollBar(), \ 52 | SLOT( setValue( int ) ) ); 53 | connect( ui->binFileView2->verticalScrollBar(), \ 54 | SIGNAL( valueChanged( int ) ), \ 55 | ui->binFileView1->verticalScrollBar(), \ 56 | SLOT( setValue( int ) ) ); 57 | 58 | connect( ui->binFileView1->horizontalScrollBar(), \ 59 | SIGNAL( valueChanged( int ) ), \ 60 | ui->binFileView2->horizontalScrollBar(), \ 61 | SLOT( setValue( int ) ) ); 62 | connect( ui->binFileView2->horizontalScrollBar(), \ 63 | SIGNAL( valueChanged( int ) ), \ 64 | ui->binFileView1->horizontalScrollBar(), \ 65 | SLOT( setValue( int ) ) ); 66 | 67 | // to maintain consistent width for both views 68 | connect( ui->binFileView1, SIGNAL( defaultVisualsChanged( BinFileView* ) ), \ 69 | ui->binFileView2, SLOT( synchronizeVisuals( BinFileView* ) ) ); 70 | connect( ui->binFileView2, SIGNAL( defaultVisualsChanged( BinFileView* ) ), \ 71 | ui->binFileView1, SLOT( synchronizeVisuals( BinFileView* ) ) ); 72 | 73 | // File drag & drop signals 74 | connect( ui->binFileView1, SIGNAL( fileDropped( QString, BinFileView* ) ), \ 75 | this, SLOT( open( QString, BinFileView* ) ) ); 76 | connect( ui->binFileView2, SIGNAL( fileDropped( QString, BinFileView* ) ), \ 77 | this, SLOT( open( QString, BinFileView* ) ) ); 78 | 79 | // And view's file ctx menu signals 80 | connect( ui->binFileView1, SIGNAL( fileOpenRequested( BinFileView* ) ), \ 81 | this, SLOT( open( BinFileView* ) ) ); 82 | connect( ui->binFileView2, SIGNAL( fileOpenRequested( BinFileView* ) ), \ 83 | this, SLOT( open( BinFileView* ) ) ); 84 | 85 | // On demand (i.e. via changed content of view's data) requested diffing 86 | connect( ui->binFileView1, SIGNAL( fileViewContentChanged( BinFileView* ) ), \ 87 | this, SLOT( updateDiff( BinFileView* ) ), Qt::DirectConnection ); 88 | connect( ui->binFileView2, SIGNAL( fileViewContentChanged( BinFileView* ) ), \ 89 | this, SLOT( updateDiff( BinFileView* ) ), Qt::DirectConnection ); 90 | 91 | // Get the arguments 92 | if( QCoreApplication::arguments().size() == 3 ) { 93 | open( QCoreApplication::arguments().at( 1 ), ui->binFileView1 ); 94 | open( QCoreApplication::arguments().at( 2 ), ui->binFileView2 ); 95 | } 96 | } 97 | 98 | MainWindow::~MainWindow() 99 | { 100 | delete ui; 101 | if( !_files.empty() ) { 102 | for( const auto f : _files ) { 103 | f._file->unmap( f._mmap ); 104 | f._file->close(); 105 | delete f._file; 106 | } 107 | } 108 | if( _diffMap ) 109 | ::munmap( _diffMap, static_cast( _diffMapSize ) ); 110 | } 111 | 112 | void MainWindow::open( BinFileView* view ) 113 | { 114 | open( QFileDialog::getOpenFileName( this ), view ); 115 | } 116 | 117 | void MainWindow::open( const QString& fileName , BinFileView* view ) 118 | { 119 | if ( !fileName.isEmpty() ) { 120 | QFile *file = new QFile( fileName ); 121 | 122 | if( !file->open( QIODevice::ReadOnly ) ) { 123 | qWarning() << "File open failed!"; 124 | delete file; 125 | return; 126 | } 127 | 128 | uchar *mmap = file->map( 0, file->size() ); 129 | 130 | if( !mmap ) { 131 | qWarning() << "File mmap failed!"; 132 | delete file; 133 | return; 134 | } 135 | 136 | if( view ) { 137 | const auto f = _files.find( view ); 138 | if( f != _files.end() ) { 139 | (*f)._file->unmap( (*f)._mmap ); 140 | (*f)._file->close(); 141 | delete (*f)._file; 142 | } 143 | _files.insert( view, FileModel( file, mmap ) ); 144 | view->setData( mmap, file->size() ); 145 | view->setToolTip( fileName ); 146 | } 147 | if( _files.size() == 2 ) { 148 | if( _diffMap ) 149 | ::munmap( _diffMap, static_cast( _diffMapSize ) ); 150 | 151 | auto f = _files.begin(); 152 | qint64 size1 = (*f)._file->size(); 153 | qint64 size2 = (*++f)._file->size(); 154 | _diffMapSize = qMax( size1, size2 ); 155 | 156 | // Qt's QFileDevice::map doesn't eat original mmap flags, --> use 'real stuff' here! 157 | _diffMap = static_cast( ::mmap( nullptr, static_cast( _diffMapSize ), PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0 ) ); 158 | 159 | if( !_diffMap ) { 160 | qWarning() << "Mapping failed!!!!"; 161 | } 162 | else { 163 | updateDiff( nullptr ); 164 | QList views = _files.keys(); 165 | for( auto v : views ) 166 | v->setColoringData( _diffMap ); 167 | } 168 | } 169 | } 170 | } 171 | 172 | void MainWindow::updateDiff( BinFileView* ) 173 | { 174 | if( _files.size() != 2 || !_diffMap ) 175 | return; 176 | 177 | qint64 addend1 = ui->binFileView1->addressAddend(); 178 | qint64 addend2 = ui->binFileView2->addressAddend(); 179 | int viewCapacity = ui->binFileView1->capacity(); 180 | 181 | auto f = _files.begin(); 182 | qint64 size1 = (*f)._file->size(); 183 | uchar* file1 = (*f)._mmap; 184 | qint64 size2 = (*++f)._file->size(); 185 | uchar* file2 = (*f)._mmap; 186 | 187 | if( _diffMap ) { 188 | // Define compare window begin offset 189 | qint64 cwBegin; 190 | // If view's data position beyond smaller file's size 191 | if( qMax( addend1, addend2 ) - qMin( addend1, addend2 ) > viewCapacity ) 192 | cwBegin = qMax( addend1, addend2 ); 193 | else 194 | cwBegin = qMin( addend1, addend2 ); 195 | 196 | for( qint64 c( cwBegin ); c < qMax( addend1 + viewCapacity, addend2 + viewCapacity ); c++ ) { 197 | if( c < qMin( size1, size2 ) ) { 198 | // Compare data 199 | if( *( file1 + c ) != *( file2 + c ) ) 200 | *( _diffMap + c ) = (uchar)Qt::red; 201 | else 202 | *( _diffMap + c ) = (uchar)Qt::black; 203 | } 204 | else if( c < qMax( size1, size2 ) ) { 205 | // Address offset beyond smaller file size 206 | *( _diffMap + c ) = (uchar)Qt::red; 207 | } 208 | } 209 | } 210 | } 211 | 212 | void MainWindow::on_actionE_xit_triggered() 213 | { 214 | this->close(); 215 | } 216 | -------------------------------------------------------------------------------- /mainwindow.h: -------------------------------------------------------------------------------- 1 | //***************************************************************************** 2 | // 3 | // mainwindow.h 4 | // Copyright(c) 2016 Juha T Nikkanen 5 | // 6 | // --- Legal stuff --- 7 | // 8 | // This program is free software; you can redistribute it and/or 9 | // modify it under the terms of the GNU Lesser General Public 10 | // License as published by the Free Software Foundation; either 11 | // version 2.1 of the License, or (at your option) any later version. 12 | // 13 | // This program is distributed in the hope that it will be useful, 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 | // Lesser General Public License for more details. 17 | // 18 | // You should have received a copy of the GNU Lesser General Public 19 | // License along with this program; if not, write to the Free Software 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 | // 22 | //***************************************************************************** 23 | 24 | #ifndef MAINWINDOW_H 25 | #define MAINWINDOW_H 26 | 27 | #include 28 | #include 29 | 30 | 31 | namespace Ui { 32 | class MainWindow; 33 | } 34 | class QFile; 35 | class BinFileView; 36 | 37 | struct FileModel 38 | { 39 | FileModel( QFile* file, uchar* mmap ) : _file( file ), _mmap( mmap ) {} 40 | QFile* _file; 41 | uchar* _mmap; 42 | }; 43 | 44 | class MainWindow : public QMainWindow 45 | { 46 | Q_OBJECT 47 | 48 | public: 49 | explicit MainWindow( QWidget* parent = nullptr ); 50 | ~MainWindow(); 51 | 52 | private slots: 53 | void open( BinFileView* ); 54 | void open( const QString&, BinFileView* view = nullptr ); 55 | void updateDiff( BinFileView* ); 56 | void on_actionE_xit_triggered(); 57 | 58 | private: // No copying 59 | MainWindow( const MainWindow& ); 60 | MainWindow& operator=( const MainWindow& ); 61 | 62 | private: // Data 63 | Ui::MainWindow* ui; 64 | QMap _files; 65 | uchar* _diffMap; 66 | qint64 _diffMapSize; 67 | }; 68 | 69 | #endif // MAINWINDOW_H 70 | -------------------------------------------------------------------------------- /mainwindow.ui: -------------------------------------------------------------------------------- 1 | 2 | 3 | MainWindow 4 | 5 | 6 | 7 | 0 8 | 0 9 | 400 10 | 560 11 | 12 | 13 | 14 | MainWindow 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | Monospace 23 | false 24 | 25 | 26 | 27 | Qt::CustomContextMenu 28 | 29 | 30 | true 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | Monospace 39 | false 40 | 41 | 42 | 43 | Qt::CustomContextMenu 44 | 45 | 46 | true 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 0 56 | 0 57 | 400 58 | 27 59 | 60 | 61 | 62 | 63 | &File 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | TopToolBarArea 72 | 73 | 74 | false 75 | 76 | 77 | 78 | 79 | 80 | E&xit 81 | 82 | 83 | 84 | 85 | 86 | 87 | BinFileView 88 | QWidget 89 |
binfileview.h
90 | 91 | 92 | 93 | 94 | 95 | --------------------------------------------------------------------------------