void KNavigator::moveCursor( KMoveAction Action, bool Select )
{
HexEdit->pauseCursor( true );
TDEBufferCursor *BufferCursor = HexEdit->BufferCursor;
TDEBufferRanges *BufferRanges = HexEdit->BufferRanges;
if( Select )
{
if( !BufferRanges->selectionStarted() )
BufferRanges->setSelectionStart( BufferCursor->realIndex() );
}
else
BufferRanges->removeSelection();
HexEdit->resetInputContext();
switch( Action )
{
case MoveBackward: BufferCursor->gotoPreviousByte(); break;
case MoveWordBackward: {
KWordBufferService WBS( HexEdit->DataBuffer, HexEdit->Codec );
int NewIndex = WBS.indexOfPreviousWordStart( BufferCursor->realIndex() );
BufferCursor->gotoIndex( NewIndex );
}
break;
case MoveForward: BufferCursor->gotoNextByte(); break;
case MoveWordForward: {
KWordBufferService WBS( HexEdit->DataBuffer, HexEdit->Codec );
int NewIndex = WBS.indexOfNextWordStart( BufferCursor->realIndex() );
BufferCursor->gotoCIndex( NewIndex );
}
break;
case MoveUp: BufferCursor->gotoUp(); break;
case MovePgUp: BufferCursor->gotoPageUp(); break;
case MoveDown: BufferCursor->gotoDown(); break;
case MovePgDown: BufferCursor->gotoPageDown(); break;
case MoveLineStart: BufferCursor->gotoLineStart(); break;
case MoveHome: BufferCursor->gotoStart(); break;
case MoveLineEnd: BufferCursor->gotoLineEnd(); break;
case MoveEnd: BufferCursor->gotoEnd(); break;
}
if( Select )
BufferRanges->setSelectionEnd( BufferCursor->realIndex() );
HexEdit->repaintChanged();
HexEdit->ensureCursorVisible();
HexEdit->unpauseCursor();
if( BufferRanges->isModified() )
{
if( !HexEdit->isOverwriteMode() ) emit HexEdit->cutAvailable( BufferRanges->hasSelection() );
emit HexEdit->copyAvailable( BufferRanges->hasSelection() );
KSection Selection = BufferRanges->selection();
emit HexEdit->selectionChanged( Selection.start(), Selection.end() );
}
}
void KColumnsView::drawContents( TQPainter *P, int cx, int cy, int cw, int ch )
{
//kdDebug(1501) << "drawContents(" << cx<<","<<cw<<"#"<<cy<<","<<ch<<")\n";
KPixelXs AffectedXs( cx, cw, true );
// content to be shown?
if( AffectedXs.startsBefore(TotalWidth) )
{
KPixelYs AffectedYs( cy, ch, true );
// collect affected columns
TQPtrList<KColumn> RedrawColumns;
for( KColumn *C=Columns.first(); C; C=Columns.next() )
if( C->isVisible() && C->overlaps(AffectedXs) )
RedrawColumns.append( C );
// any lines to be drawn?
if( NoOfLines > 0 )
{
// calculate affected lines
KSection AffectedLines = visibleLines( AffectedYs );
AffectedLines.restrictEndTo( NoOfLines - 1 );
if( AffectedLines.isValid() )
{
TQPainter Paint;
Paint.begin( const_cast<TQPixmap*>(&LineBuffer), this );
// starting painting with the first line
KColumn *C = RedrawColumns.first();
Paint.translate( C->x(), 0 );
for( ; C; C=RedrawColumns.next() )
{
C->paintFirstLine( &Paint, AffectedXs, AffectedLines.start() );
Paint.translate( C->width(), 0 );
}
// Go through the other lines
KPixelY y = AffectedLines.start() * LineHeight;
int l = AffectedLines.start();
while( true )
{
Paint.end();
P->drawPixmap( cx, y, LineBuffer, cx, 0, cw, LineHeight ); // bitBlt directly impossible: lack of real coord
// copy to screen
// bitBlt( viewport(), cx - contentsX(), y - contentsY(),
// &LineBuffer, cx, 0, cw, LineHeight );
++l;
y += LineHeight;
if( l > AffectedLines.end() )
break;
// to avoid flickers we first paint to the linebuffer
Paint.begin( TQT_TQPAINTDEVICE(&LineBuffer), this );
KColumn *C = RedrawColumns.first();
Paint.translate( C->x(), 0 );
for( ; C; C=RedrawColumns.next() )
{
C->paintNextLine( &Paint );
Paint.translate( C->width(), 0 );
}
if( HorizontalGrid && cx < TotalWidth )
Paint.drawLine( cx, LineHeight-1, TotalWidth-1, LineHeight-1 ); // TODO: use a additional TotalHeight?
}
}
}
// draw empty columns?
AffectedYs.setStart( totalHeight() );
if( AffectedYs.isValid() )
{
for( KColumn *C = RedrawColumns.first(); C; C=RedrawColumns.next() )
C->paintEmptyColumn( P, AffectedXs, AffectedYs );
}
}
// Paint empty rects
AffectedXs.setStart( TotalWidth );
if( AffectedXs.isValid() )
paintEmptyArea( P, AffectedXs.start(), cy, AffectedXs.width(), ch );
}
void KBufferRanges::addChangedRange( KSection S )
{
addChangedRange( KCoordRange(Layout->coordOfIndex(S.start()),Layout->coordOfIndex(S.end())) );
}
void KBufferRanges::setSelectionEnd( int EndIndex )
{
KSection OldSelection = Selection;
Selection.setEnd( EndIndex );
// TODO: think about rather building a diff of the sections
if( !OldSelection.isValid() )
{
addChangedRange( Selection );
return;
}
if( !Selection.isValid() )
{
addChangedRange( OldSelection );
return;
}
if( OldSelection == Selection )
return;
int CS_;
int CE_;
// changes at the end?
if( Selection.start() == OldSelection.start() )
{
CS_ = OldSelection.end()+1;
CE_ = Selection.end();
if( CE_ < CS_ )
{
CS_ = Selection.end()+1;
CE_ = OldSelection.end();
}
}
// changes at the start?
else if( Selection.end() == OldSelection.end() )
{
CS_ = OldSelection.start();
CE_ = Selection.start()-1;
if( CE_ < CS_ )
{
CS_ = Selection.start();
CE_ = OldSelection.start()-1;
}
}
// change over the anchor
else
{
CS_ = OldSelection.start();
CE_ = Selection.end();
if( CE_ < CS_ )
{
CS_ = Selection.start();
CE_ = OldSelection.end();
}
}
KSection C( CS_, CE_ );
bool Changed = C.isValid();
if( Changed )
addChangedRange( C );
return;
}
void KEditor::doEditAction( KEditAction Action )
{
KSection ChangedRange;
HexEdit->pauseCursor( true );
switch( Action )
{
case CharDelete:
if( !HexEdit->OverWrite )
{
int Index = BufferCursor->realIndex();
if( Index < HexEdit->BufferLayout->length() )
{
ChangedRange = HexEdit->removeData( KSection(Index,1,false) );
if( Index == HexEdit->BufferLayout->length() )
BufferCursor->gotoEnd();
}
}
break;
case WordDelete: // kills data until the start of the next word
if( !HexEdit->OverWrite )
{
int Index = BufferCursor->realIndex();
if( Index < HexEdit->BufferLayout->length() )
{
KWordBufferService WBS( HexEdit->DataBuffer, HexEdit->Codec );
int End = WBS.indexOfBeforeNextWordStart( Index );
ChangedRange = HexEdit->removeData( KSection(Index,End) );
if( Index == HexEdit->BufferLayout->length() )
BufferCursor->gotoEnd();
}
}
break;
case CharBackspace:
if( HexEdit->OverWrite )
BufferCursor->gotoPreviousByte();
else
{
int DeleteIndex = BufferCursor->realIndex() - 1;
if( DeleteIndex >= 0 )
{
ChangedRange = HexEdit->removeData( KSection(DeleteIndex,1,false) );
if( DeleteIndex == HexEdit->BufferLayout->length() )
BufferCursor->gotoEnd();
else
BufferCursor->gotoPreviousByte();
}
}
break;
case WordBackspace:
{
int LeftIndex = BufferCursor->realIndex() - 1;
if( LeftIndex >= 0 )
{
KWordBufferService WBS( HexEdit->DataBuffer, HexEdit->Codec );
int WordStart = WBS.indexOfPreviousWordStart( LeftIndex );
if( !HexEdit->OverWrite )
ChangedRange = HexEdit->removeData( KSection(WordStart,LeftIndex) );
if( WordStart == HexEdit->BufferLayout->length() )
BufferCursor->gotoEnd();
else
BufferCursor->gotoIndex(WordStart);
}
}
}
HexEdit->repaintChanged();
HexEdit->ensureCursorVisible();
HexEdit->unpauseCursor();
emit HexEdit->cursorPositionChanged( BufferCursor->index() );
if( ChangedRange.isValid() ) emit HexEdit->bufferChanged( ChangedRange.start(), ChangedRange.end() );
}
