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 );
}
void MouseNavigator::handleMouseMove( const QPoint& point ) // handles the move of the mouse with pressed buttons
{
ByteArrayTableCursor* tableCursor = mView->tableCursor();
ByteArrayTableRanges* tableRanges = mView->tableRanges();
const bool oldHasSelection = tableRanges->hasSelection();
const int yOffset = mView->yOffset();
const int behindLastYOffset = yOffset + mView->visibleHeight();
// scrolltimer but inside of viewport?
if( mScrollTimer->isActive() )
{
if( yOffset <= point.y() && point.y() < behindLastYOffset )
mScrollTimer->stop();
}
// no scrolltimer and outside of viewport?
else
{
if( point.y() < yOffset || behindLastYOffset <= point.y() )
mScrollTimer->start( DefaultScrollTimerPeriod );
}
mView->pauseCursor();
mView->placeCursor( point );
mView->ensureCursorVisible();
// do wordwise selection?
if( mInLMBDoubleClick && tableRanges->hasFirstWordSelection() )
{
Address newIndex = tableCursor->realIndex();
const AddressRange firstWordSelection = tableRanges->firstWordSelection();
const WordByteArrayService WBS( mView->byteArrayModel(), mView->charCodec() );
// are we before the selection?
if( firstWordSelection.startsBehind(newIndex) )
{
tableRanges->ensureWordSelectionForward( false );
newIndex = WBS.indexOfLeftWordSelect( newIndex );
}
// or behind?
else if( firstWordSelection.endsBefore(newIndex) )
{
tableRanges->ensureWordSelectionForward( true );
newIndex = WBS.indexOfRightWordSelect( newIndex );
}
// or inside?
else
{
tableRanges->ensureWordSelectionForward( true );
newIndex = firstWordSelection.nextBehindEnd();
}
tableCursor->gotoIndex( newIndex );
}
if( tableRanges->selectionStarted() )
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 );
}
}
bool MouseNavigator::handleMouseReleaseEvent( QMouseEvent* mouseEvent )
{
bool eventUsed = false;
if( mouseEvent->button() == Qt::LeftButton )
{
ByteArrayTableRanges* tableRanges = mView->tableRanges();
const bool oldHasSelection = tableRanges->hasSelection();
// const QPoint releasePoint = mView->viewportToColumns( mouseEvent->pos() );
// this is not the release of a doubleclick so we need to process it?
if( ! mInLMBDoubleClick )
{
// const int line = mView->lineAt( releasePoint.y() );
// const int pos = mActiveColumn->linePositionOfX( releasePoint.x() ); // TODO: can we be sure here about the active column?
// const Address index = tableLayout->indexAtCCoord( Coord(pos,line) ); // TODO: can this be another index than the one of the cursor???
// emit mView->clicked( index ); // TODO: who needs this?
}
if( mLMBPressed )
{
mLMBPressed = false;
if( mScrollTimer->isActive() )
mScrollTimer->stop();
// was only click inside selection, nothing dragged?
if( mDragStartPossible )
{
mView->selectAll( false );
mDragStartTimer->stop();
mDragStartPossible = false;
mView->placeCursor( mDragStartPoint );
mView->ensureCursorVisible();
mView->unpauseCursor();
}
// was end of selection operation?
else if( tableRanges->hasSelection() )
{
if( QApplication::clipboard()->supportsSelection() )
mView->copyToClipboard( QClipboard::Selection );
}
}
emit mView->cursorPositionChanged( mView->cursorPosition() );
mInLMBDoubleClick = false;
if( tableRanges->selectionJustStarted() )
tableRanges->removeSelection();
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::handleMouseReleaseEvent( mouseEvent );
}