bool MouseNavigator::handleMouseMoveEvent( QMouseEvent* mouseEvent )
{
bool eventUsed = false;
if( mouseEvent->buttons() == Qt::LeftButton )
{
const QPoint movePoint = mView->viewportToColumns( mouseEvent->pos() );
if( mLMBPressed )
{
if( mDragStartPossible )
{
mDragStartTimer->stop();
// moved enough for a drag?
if( (movePoint-mDragStartPoint).manhattanLength() > QApplication::startDragDistance() )
startDrag();
if( ! mView->isReadOnly() )
mView->viewport()->setCursor( Qt::IBeamCursor );
}
else
// selecting
handleMouseMove( movePoint );
}
else if( ! mView->isReadOnly() )
{
ByteArrayTableRanges* tableRanges = mView->tableRanges();
// visual feedback for possible dragging
const bool InSelection =
tableRanges->hasSelection() && tableRanges->selectionIncludes( mView->indexByPoint(movePoint) );
mView->viewport()->setCursor( InSelection ? Qt::ArrowCursor : Qt::IBeamCursor );
}
eventUsed = true;
}
return eventUsed ? true : AbstractMouseController::handleMouseMoveEvent( mouseEvent );
}
bool MouseNavigator::handleMousePressEvent( QMouseEvent* mouseEvent )
{
bool eventUsed = false;
if( mouseEvent->button() == Qt::LeftButton )
{
ByteArrayTableCursor* tableCursor = mView->tableCursor();
ByteArrayTableRanges* tableRanges = mView->tableRanges();
ByteArrayTableLayout* tableLayout = mView->layout();
const bool oldHasSelection = tableRanges->hasSelection();
mView->pauseCursor();
mView->finishByteEdit();
mLMBPressed = true;
// select whole line?
if( mTrippleClickTimer->isActive()
&& (mouseEvent->globalPos()-mDoubleClickPoint).manhattanLength() < QApplication::startDragDistance() )
{
mTrippleClickTimer->stop();
const Address indexAtFirstDoubleClickLinePosition = tableLayout->indexAtFirstLinePosition( mDoubleClickLine );
tableRanges->setSelectionStart( indexAtFirstDoubleClickLinePosition );
tableCursor->gotoIndex( indexAtFirstDoubleClickLinePosition );
tableCursor->gotoLineEnd();
tableRanges->setSelectionEnd( mView->cursorPosition() );
mView->updateChanged();
mView->unpauseCursor();
const bool newHasSelection = tableRanges->hasSelection();
emit mView->cursorPositionChanged( mView->cursorPosition() );
emit mView->selectionChanged( tableRanges->selection() );
if( oldHasSelection != newHasSelection )
{
if( ! mView->isOverwriteMode() ) emit mView->cutAvailable( newHasSelection );
emit mView->copyAvailable( newHasSelection );
emit mView->hasSelectedDataChanged( newHasSelection );
}
}
else
{
// TODO: pos() is now, not at the moment of the event, use globalPos() for that,.says dox
const QPoint mousePoint = mView->viewportToColumns( mouseEvent->pos() );
// start of a drag perhaps?
if( tableRanges->hasSelection() && tableRanges->selectionIncludes(mView->indexByPoint( mousePoint )) )
{
mDragStartPossible = true;
mDragStartTimer->start( QApplication::startDragTime() );
mDragStartPoint = mousePoint;
}
else
{
mView->placeCursor( mousePoint );
mView->ensureCursorVisible();
const Address realIndex = tableCursor->realIndex();
if( tableRanges->selectionStarted() )
{
if( mouseEvent->modifiers() & Qt::SHIFT )
tableRanges->setSelectionEnd( realIndex );
else
{
tableRanges->removeSelection();
tableRanges->setSelectionStart( realIndex );
}
}
else // start of a new selection possible
{
tableRanges->setSelectionStart( realIndex );
if( !mView->isReadOnly() && (mouseEvent->modifiers()&Qt::SHIFT) ) // TODO: why only for readwrite?
tableRanges->setSelectionEnd( realIndex );
}
tableRanges->removeFurtherSelections();
}
if( tableRanges->isModified() )
{
mView->updateChanged();
mView->viewport()->setCursor( mView->isReadOnly() ? Qt::ArrowCursor : Qt::IBeamCursor );
}
mView->unpauseCursor();
const bool newHasSelection = tableRanges->hasSelection();
emit mView->selectionChanged( tableRanges->selection() );
if( oldHasSelection != newHasSelection )
{
if( ! mView->isOverwriteMode() ) emit mView->cutAvailable( newHasSelection );
emit mView->copyAvailable( newHasSelection );
emit mView->hasSelectedDataChanged( newHasSelection );
}
}
eventUsed = true;
}
return eventUsed ? true : AbstractMouseController::handleMousePressEvent( mouseEvent );
}
