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tdeutils/khexedit/lib/khexedit.cpp

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/***************************************************************************
khexedit.cpp - description
-------------------
begin : Die Mai 13 2003
copyright : (C) 2003 by Friedrich W. H. Kossebau
email : Friedrich.W.H@Kossebau.de
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
//#include <kdebug.h>
// c specific
#include <stdlib.h>
//#include <limits.h>
// c++ specific
//#include <limits>
// qt specific
#include <tqstyle.h>
#include <tqpainter.h>
#include <tqtimer.h>
#include <tqcursor.h>
#include <tqapplication.h>
// kde specific
#ifndef TQT_ONLY
#include <kglobalsettings.h>
#endif
// lib specific
#include "kdatabuffer.h"
#include "koffsetcolumn.h"
#include "kvaluecolumn.h"
#include "kcharcolumn.h"
#include "kbordercolumn.h"
#include "kbuffercursor.h"
#include "kbufferlayout.h"
#include "kbufferranges.h"
#include "controller/ktabcontroller.h"
#include "controller/knavigator.h"
#include "controller/kvalueeditor.h"
#include "controller/kchareditor.h"
#include "kbufferdrag.h"
#include "kcursor.h"
#include "kbytecodec.h"
#include "kcharcodec.h"
#include "kwordbufferservice.h"
#include "khexedit.h"
using namespace KHE;
// zooming is done in steps of font size points
static const int DefaultZoomStep = 1;
static const int DefaultStartOffset = 0;//5;
static const int DefaultFirstLineOffset = 0;
static const int DefaultNoOfBytesPerLine = 16;
static const KHexEdit::KResizeStyle DefaultResizeStyle = KHexEdit::FullSizeUsage;
static const KHexEdit::KEncoding DefaultEncoding = KHexEdit::LocalEncoding;
static const int DefaultScrollTimerPeriod = 100;
static const int InsertCursorWidth = 2;
KHexEdit::KHexEdit( KDataBuffer *Buffer, TQWidget *Parent, const char *Name, WFlags Flags )
: KColumnsView( Parent, Name, Flags ),
DataBuffer( Buffer ),
BufferLayout( new KBufferLayout(DefaultNoOfBytesPerLine,DefaultStartOffset,0) ),
BufferCursor( new KBufferCursor(BufferLayout) ),
BufferRanges( new KBufferRanges(BufferLayout) ),
CursorBlinkTimer( new TQTimer(this) ),
ScrollTimer( new TQTimer(this) ),
DragStartTimer( new TQTimer(this) ),
TrippleClickTimer( new TQTimer(this) ),
CursorPixmaps( new KCursor() ),
Codec( 0 ),
ClipboardMode( TQClipboard::Clipboard ),
ResizeStyle( DefaultResizeStyle ),
Encoding( MaxEncodingId ), // forces update
ReadOnly( false ),
// Modified( false ),
OverWriteOnly( false ),
OverWrite( true ),
MousePressed( false ),
InDoubleClick( false ),
InDnD( false ),
DragStartPossible( false ),
CursorPaused( false ),
BlinkCursorVisible( false ),
InZooming( false ),
d( 0 )
{
// initalize layout
if( DataBuffer )
BufferLayout->setLength( DataBuffer->size() );
BufferLayout->setNoOfLinesPerPage( noOfLinesPerPage() );
// creating the columns in the needed order
OffsetColumn = new KOffsetColumn( this, DefaultFirstLineOffset, DefaultNoOfBytesPerLine, KOffsetFormat::Hexadecimal );
FirstBorderColumn = new KBorderColumn( this, false );
ValueColumn = new KValueColumn( this, DataBuffer, BufferLayout, BufferRanges );
SecondBorderColumn = new KBorderColumn( this, true );
CharColumn = new KCharColumn( this, DataBuffer, BufferLayout, BufferRanges );
// select the active column
ActiveColumn = &charColumn();
InactiveColumn = &valueColumn();
// set encoding
Codec = KCharCodec::createCodec( (KHE::KEncoding)DefaultEncoding );
valueColumn().setCodec( Codec );
charColumn().setCodec( Codec );
Encoding = DefaultEncoding;
TabController = new KTabController( this, 0 );
Navigator = new KNavigator( this, TabController );
ValueEditor = new KValueEditor( ValueColumn, BufferCursor, this, Navigator );
CharEditor = new KCharEditor( CharColumn, BufferCursor, this, Navigator );
Controller = Navigator;
#ifdef TQT_ONLY
TQFont FixedFont( "fixed", 10 );
FixedFont.setFixedPitch( true );
setFont( FixedFont );
#else
setFont( KGlobalSettings::fixedFont() );
#endif
// get the full control
viewport()->setFocusProxy( this );
viewport()->setFocusPolicy( TQ_WheelFocus );
viewport()->installEventFilter( this );
installEventFilter( this );
connect( CursorBlinkTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(blinkCursor()) );
connect( ScrollTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(autoScrollTimerDone()) );
connect( DragStartTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(startDrag()) );
viewport()->setAcceptDrops( true );
}
KHexEdit::~KHexEdit()
{
delete TabController;
delete Navigator;
delete ValueEditor;
delete CharEditor;
}
int KHexEdit::noOfBytesPerLine() const { return BufferLayout->noOfBytesPerLine(); }
int KHexEdit::firstLineOffset() const { return OffsetColumn->firstLineOffset(); }
int KHexEdit::startOffset() const { return BufferLayout->startOffset(); }
KHexEdit::KResizeStyle KHexEdit::resizeStyle() const { return ResizeStyle; }
KHexEdit::KCoding KHexEdit::coding() const { return (KHexEdit::KCoding)valueColumn().coding(); }
KPixelX KHexEdit::byteSpacingWidth() const { return valueColumn().byteSpacingWidth(); }
int KHexEdit::noOfGroupedBytes() const { return valueColumn().noOfGroupedBytes(); }
KPixelX KHexEdit::groupSpacingWidth() const { return valueColumn().groupSpacingWidth(); }
KPixelX KHexEdit::binaryGapWidth() const { return valueColumn().binaryGapWidth(); }
bool KHexEdit::isOverwriteMode() const { return OverWrite; }
bool KHexEdit::isOverwriteOnly() const { return OverWriteOnly; }
bool KHexEdit::isReadOnly() const { return ReadOnly; }
bool KHexEdit::isModified() const { return DataBuffer->isModified(); }
bool KHexEdit::tabChangesFocus() const { return TabController->tabChangesFocus(); }
bool KHexEdit::showUnprintable() const { return charColumn().showUnprintable(); }
TQChar KHexEdit::substituteChar() const { return charColumn().substituteChar(); }
TQChar KHexEdit::undefinedChar() const { return charColumn().undefinedChar(); }
KHexEdit::KEncoding KHexEdit::encoding() const { return (KHexEdit::KEncoding)Encoding; }
const TQString &KHexEdit::encodingName() const { return Codec->name(); }
KSection KHexEdit::selection() const { return BufferRanges->selection(); }
int KHexEdit::cursorPosition() const { return BufferCursor->index(); }
bool KHexEdit::isCursorBehind() const { return BufferCursor->isBehind(); }
KHexEdit::KBufferColumnId KHexEdit::cursorColumn() const
{ return static_cast<KHE::KValueColumn *>( ActiveColumn ) == &valueColumn()? ValueColumnId : CharColumnId; }
void KHexEdit::setOverwriteOnly( bool OO ) { OverWriteOnly = OO; if( OverWriteOnly ) setOverwriteMode( true ); }
void KHexEdit::setModified( bool M ) { DataBuffer->setModified(M); }
void KHexEdit::setTabChangesFocus( bool TCF ) { TabController->setTabChangesFocus(TCF); }
void KHexEdit::setFirstLineOffset( int FLO ) { OffsetColumn->setFirstLineOffset( FLO ); }
bool KHexEdit::offsetColumnVisible() const { return OffsetColumn->isVisible(); }
int KHexEdit::visibleBufferColumns() const
{ return (valueColumn().isVisible() ? ValueColumnId : 0) | (charColumn().isVisible() ? CharColumnId : 0); }
void KHexEdit::setOverwriteMode( bool OM )
{
if( (OverWriteOnly && !OM) || (OverWrite == OM) )
return;
OverWrite = OM;
// affected:
// cursor shape
bool ChangeCursor = !( CursorPaused || ValueEditor->isInEditMode() );
if( ChangeCursor )
pauseCursor();
BufferCursor->setAppendPosEnabled( !OverWrite );
if( ChangeCursor )
unpauseCursor();
emit cutAvailable( !OverWrite && BufferRanges->hasSelection() );
}
void KHexEdit::setDataBuffer( KDataBuffer *B )
{
//pauseCursor();
ValueEditor->reset();
CursorPaused = true;
DataBuffer = B;
valueColumn().set( DataBuffer );
charColumn().set( DataBuffer);
// affected:
// length -> no of lines -> width
BufferLayout->setLength( DataBuffer->size() );
adjustLayoutToSize();
// ensure that the widget is readonly if the buffer is
if( DataBuffer->isReadOnly() )
setReadOnly( true );
updateView();
BufferCursor->gotoStart();
ensureCursorVisible();
unpauseCursor();
}
void KHexEdit::setStartOffset( int SO )
{
if( !BufferLayout->setStartOffset(SO) )
return;
pauseCursor();
// affects:
// the no of lines -> width
adjustLayoutToSize();
updateView();
BufferCursor->updateCoord();
ensureCursorVisible();
unpauseCursor();
}
void KHexEdit::setReadOnly( bool RO )
{
// don't set editor readwrite if databuffer is readonly
ReadOnly = (DataBuffer && DataBuffer->isReadOnly()) ? true : RO;
Controller = ReadOnly ? (KController*)Navigator :
cursorColumn() == CharColumnId ? (KController*)CharEditor : (KController*)ValueEditor;
}
void KHexEdit::setBufferSpacing( KPixelX ByteSpacing, int NoOfGroupedBytes, KPixelX GroupSpacing )
{
if( !valueColumn().setSpacing(ByteSpacing,NoOfGroupedBytes,GroupSpacing) )
return;
updateViewByWidth();
}
void KHexEdit::setCoding( KCoding C )
{
uint OldCodingWidth = valueColumn().byteCodec()->encodingWidth();
if( !valueColumn().setCoding((KHE::KCoding)C) )
return;
uint NewCodingWidth = valueColumn().byteCodec()->encodingWidth();
ValueEditor->ByteBuffer.setLength( NewCodingWidth ); //hack for now
// no change in the width?
if( NewCodingWidth == OldCodingWidth )
updateColumn( valueColumn() );
else
updateViewByWidth();
}
void KHexEdit::setResizeStyle( KResizeStyle NewStyle )
{
if( ResizeStyle == NewStyle )
return;
ResizeStyle = NewStyle;
updateViewByWidth();
}
void KHexEdit::setNoOfBytesPerLine( int NoBpL )
{
// if the number is explicitly set we expect a wish for no automatic resize
ResizeStyle = NoResize;
if( !BufferLayout->setNoOfBytesPerLine(NoBpL) )
return;
updateViewByWidth();
}
void KHexEdit::setByteSpacingWidth( int/*KPixelX*/ BSW )
{
if( !valueColumn().setByteSpacingWidth(BSW) )
return;
updateViewByWidth();
}
void KHexEdit::setNoOfGroupedBytes( int NoGB )
{
if( !valueColumn().setNoOfGroupedBytes(NoGB) )
return;
updateViewByWidth();
}
void KHexEdit::setGroupSpacingWidth( int/*KPixelX*/ GSW )
{
if( !valueColumn().setGroupSpacingWidth(GSW) )
return;
updateViewByWidth();
}
void KHexEdit::setBinaryGapWidth( int/*KPixelX*/ BGW )
{
if( !valueColumn().setBinaryGapWidth(BGW) )
return;
updateViewByWidth();
}
void KHexEdit::setSubstituteChar( TQChar SC )
{
if( !charColumn().setSubstituteChar(SC) )
return;
pauseCursor();
updateColumn( charColumn() );
unpauseCursor();
}
void KHexEdit::setUndefinedChar( TQChar UC )
{
if( !charColumn().setUndefinedChar(UC) )
return;
pauseCursor();
updateColumn( charColumn() );
unpauseCursor();
}
void KHexEdit::setShowUnprintable( bool SU )
{
if( !charColumn().setShowUnprintable(SU) )
return;
pauseCursor();
updateColumn( charColumn() );
unpauseCursor();
}
void KHexEdit::setEncoding( KEncoding C )
{
if( Encoding == C )
return;
KCharCodec *NC = KCharCodec::createCodec( (KHE::KEncoding)C );
if( NC == 0 )
return;
valueColumn().setCodec( NC );
charColumn().setCodec( NC );
delete Codec;
Codec = NC;
Encoding = C;
pauseCursor();
updateColumn( valueColumn() );
updateColumn( charColumn() );
unpauseCursor();
}
// TODO: join with function above!
void KHexEdit::setEncoding( const TQString& EncodingName )
{
if( EncodingName == Codec->name() )
return;
KCharCodec *NC = KCharCodec::createCodec( EncodingName );
if( NC == 0 )
return;
valueColumn().setCodec( NC );
charColumn().setCodec( NC );
delete Codec;
Codec = NC;
Encoding = LocalEncoding; // TODO: add encoding no to every known codec
pauseCursor();
updateColumn( valueColumn() );
updateColumn( charColumn() );
unpauseCursor();
}
void KHexEdit::fontChange( const TQFont &OldFont )
{
TQScrollView::fontChange( OldFont );
if( !InZooming )
DefaultFontSize = font().pointSize();
// get new values
TQFontMetrics FM( fontMetrics() );
KPixelX DigitWidth = FM.maxWidth();
KPixelY DigitBaseLine = FM.ascent();
setLineHeight( FM.height() );
// update all dependant structures
BufferLayout->setNoOfLinesPerPage( noOfLinesPerPage() );
OffsetColumn->setMetrics( DigitWidth, DigitBaseLine );
valueColumn().setMetrics( DigitWidth, DigitBaseLine );
charColumn().setMetrics( DigitWidth, DigitBaseLine );
updateViewByWidth();
}
void KHexEdit::updateViewByWidth()
{
pauseCursor();
adjustToLayoutNoOfBytesPerLine();
adjustLayoutToSize();
updateView();
BufferCursor->updateCoord();
ensureCursorVisible();
unpauseCursor();
}
void KHexEdit::zoomIn() { zoomIn( DefaultZoomStep ); }
void KHexEdit::zoomOut() { zoomOut( DefaultZoomStep ); }
void KHexEdit::zoomIn( int PointInc )
{
InZooming = true;
TQFont F( font() );
F.setPointSize( TQFontInfo(F).pointSize() + PointInc );
setFont( F );
InZooming = false;
}
void KHexEdit::zoomOut( int PointDec )
{
InZooming = true;
TQFont F( font() );
F.setPointSize( TQMAX( 1, TQFontInfo(F).pointSize() - PointDec ) );
setFont( F );
InZooming = false;
}
void KHexEdit::zoomTo( int PointSize )
{
InZooming = true;
TQFont F( font() );
F.setPointSize( PointSize );
setFont( F );
InZooming = false;
}
void KHexEdit::unZoom()
{
zoomTo( DefaultFontSize );
}
void KHexEdit::adjustLayoutToSize()
{
// check whether there is a change with the numbers of fitting bytes per line
if( ResizeStyle != NoResize )
{
int FittingBytesPerLine = fittingBytesPerLine( size() );
// std::cout<<"FitBpL"<<FittingBytesPerLine<<std::endl;
// changes?
if( BufferLayout->setNoOfBytesPerLine(FittingBytesPerLine) )
adjustToLayoutNoOfBytesPerLine();
}
setNoOfLines( BufferLayout->noOfLines() );
}
void KHexEdit::adjustToLayoutNoOfBytesPerLine()
{
OffsetColumn->setDelta( BufferLayout->noOfBytesPerLine() );
valueColumn().resetXBuffer();
charColumn().resetXBuffer();
updateWidths();
}
void KHexEdit::setNoOfLines( int NewNoOfLines )
{
KColumnsView::setNoOfLines( NewNoOfLines>1?NewNoOfLines:1 );
}
void KHexEdit::toggleOffsetColumn( bool Visible )
{
bool OCVisible = OffsetColumn->isVisible();
// no change?
if( OCVisible == Visible )
return;
OffsetColumn->setVisible( Visible );
FirstBorderColumn->setVisible( Visible );
updateViewByWidth();
}
TQSize KHexEdit::sizeHint() const
{
return TQSize( totalWidth(), totalHeight() );
}
TQSize KHexEdit::minimumSizeHint() const
{
// TODO: better minimal width (visibility!)
return TQSize( OffsetColumn->visibleWidth()+FirstBorderColumn->visibleWidth()+SecondBorderColumn->visibleWidth()+valueColumn().byteWidth()+charColumn().byteWidth(),
lineHeight() + noOfLines()>1? style().pixelMetric(TQStyle::PM_ScrollBarExtent):0 );
}
void KHexEdit::resizeEvent( TQResizeEvent *ResizeEvent )
{
if( ResizeStyle != NoResize )
{
int FittingBytesPerLine = fittingBytesPerLine( ResizeEvent->size() );
// changes?
if( BufferLayout->setNoOfBytesPerLine(FittingBytesPerLine) )
{
setNoOfLines( BufferLayout->noOfLines() );
updateViewByWidth();
}
}
TQScrollView::resizeEvent( ResizeEvent );
BufferLayout->setNoOfLinesPerPage( noOfLinesPerPage() ); // TODO: doesn't work with the new size!!!
}
int KHexEdit::fittingBytesPerLine( const TQSize &NewSize ) const
{
KPixelX ReservedWidth = OffsetColumn->visibleWidth() + FirstBorderColumn->visibleWidth() + SecondBorderColumn->visibleWidth();
// abstract framewidth as well as offset and border columns width
int UsedbyFrameWidth = 2 * frameWidth();
KPixelX FullWidth = NewSize.width() - UsedbyFrameWidth - ReservedWidth;
// // no width left for resizeable columns? TODO: put this in resizeEvent
// if( FullWidth < 0 )
// return;
KPixelY FullHeight = NewSize.height() - UsedbyFrameWidth;
// check influence of dis-/appearing of the vertical scrollbar
bool VerticalScrollbarIsVisible = verticalScrollBar()->isVisible();
KPixelX ScrollbarExtent = style().pixelMetric( TQStyle::PM_ScrollBarExtent );//verticalScrollBar()->width();
KPixelX AvailableWidth = FullWidth;
if( VerticalScrollbarIsVisible )
AvailableWidth -= ScrollbarExtent;
enum KMatchTrial { FirstRun, RerunWithScrollbarOn, TestWithoutScrollbar };
KMatchTrial MatchRun = FirstRun;
// prepare needed values
KPixelX DigitWidth = valueColumn().digitWidth();
KPixelX TextByteWidth = charColumn().isVisible() ? DigitWidth : 0;
KPixelX HexByteWidth = valueColumn().isVisible() ? valueColumn().byteWidth() : 0;
KPixelX ByteSpacingWidth = valueColumn().isVisible() ? valueColumn().byteSpacingWidth() : 0;
KPixelX GroupSpacingWidth;
int NoOfGroupedBytes = valueColumn().noOfGroupedBytes();
// no grouping?
if( NoOfGroupedBytes == 0 )
{
// faking grouping by 1
NoOfGroupedBytes = 1;
GroupSpacingWidth = 0;
}
else
GroupSpacingWidth = valueColumn().isVisible() ? valueColumn().groupSpacingWidth() : 0;
KPixelX HexByteGroupWidth = NoOfGroupedBytes * HexByteWidth + (NoOfGroupedBytes-1)*ByteSpacingWidth;
KPixelX TextByteGroupWidth = NoOfGroupedBytes * TextByteWidth;
KPixelX TotalGroupWidth = HexByteGroupWidth + GroupSpacingWidth + TextByteGroupWidth;
int FittingBytesPerLine;
int WithScrollbarFittingBytesPerLine = 0;
for(;;)
{
// std::cout << "matchWidth: " << FullWidth
// << " (v:" << visibleWidth()
// << ", f:" << frameWidth()
// << ", A:" << AvailableWidth
// << ", S:" << ScrollbarExtent
// << ", R:" << ReservedWidth << ")" << std::endl;
// calculate fitting groups per line
int FittingGroupsPerLine = (AvailableWidth+GroupSpacingWidth) // fake spacing after last group
/ TotalGroupWidth;
// calculate the fitting bytes per line by groups
FittingBytesPerLine = NoOfGroupedBytes * FittingGroupsPerLine;
// not only full groups?
if( ResizeStyle == FullSizeUsage && NoOfGroupedBytes > 1 )
{
if( FittingGroupsPerLine > 0 )
AvailableWidth -= FittingGroupsPerLine*TotalGroupWidth; // includes additional spacing after last group
// std::cout << "Left: " << AvailableWidth << "("<<HexByteWidth<<", "<<TextByteWidth<<")" << std::endl;
if( AvailableWidth > 0 )
FittingBytesPerLine += (AvailableWidth+ByteSpacingWidth) / (HexByteWidth+ByteSpacingWidth+TextByteWidth);
// is there not even the space for a single byte?
if( FittingBytesPerLine == 0 )
{
// ensure at least one byte per line
FittingBytesPerLine = 1;
// and
break;
}
}
// is there not the space for a single group?
else if( FittingBytesPerLine == 0 )
{
// ensures at least one group
FittingBytesPerLine = NoOfGroupedBytes;
break;
}
// std::cout << "meantime: " << FittingGroupsPerLine << " (T:" << TotalGroupWidth
// << ", h:" << HexByteGroupWidth
// << ", t:" << TextByteGroupWidth
// << ", s:" << GroupSpacingWidth << ") " <<FittingBytesPerLine<< std::endl;
int NewNoOfLines = (BufferLayout->length()+BufferLayout->startOffset()+FittingBytesPerLine-1)
/ FittingBytesPerLine;
KPixelY NewHeight = NewNoOfLines * LineHeight;
if( VerticalScrollbarIsVisible )
{
if( MatchRun == TestWithoutScrollbar )
{
// did the test without the scrollbar fail, don't the data fit into the view?
if( NewHeight>FullHeight )
// reset to old calculated value
FittingBytesPerLine = WithScrollbarFittingBytesPerLine;
break;
}
// a chance for to perhaps fit in height?
if( FittingBytesPerLine <= BufferLayout->noOfBytesPerLine() )
{
// remember this trial's result and calc number of bytes with vertical scrollbar on
WithScrollbarFittingBytesPerLine = FittingBytesPerLine;
AvailableWidth = FullWidth;
MatchRun = TestWithoutScrollbar;
// std::cout << "tested without scrollbar..." << std::endl;
continue;
}
}
else
{
// doesn't it fit into the height anymore?
if( NewHeight>FullHeight && MatchRun==FirstRun )
{
// need for a scrollbar has risen... ->less width, new calculation
AvailableWidth = FullWidth - ScrollbarExtent;
MatchRun = RerunWithScrollbarOn;
// std::cout << "rerun with scrollbar on..." << std::endl;
continue;
}
}
break;
}
return FittingBytesPerLine;
}
bool KHexEdit::selectWord( /*unsigned TODO:change all unneeded signed into unsigned!*/ int Index )
{
if( Index >= 0 && Index < BufferLayout->length() )
{
KWordBufferService WBS( DataBuffer, Codec );
KSection WordSection = WBS.wordSection( Index );
if( WordSection.isValid() )
{
pauseCursor();
BufferRanges->setFirstWordSelection( WordSection );
BufferCursor->gotoIndex( WordSection.end()+1 );
repaintChanged();
unpauseCursor();
return true;
}
}
return false;
}
void KHexEdit::select( KSection Section )
{
if( !Section.isValid() )
return;
Section.restrictTo( KSection(0,BufferLayout->length()-1) );
pauseCursor();
BufferRanges->setSelection( Section );
BufferCursor->gotoIndex( Section.end()+1 );
repaintChanged();
unpauseCursor();
if( !OverWrite ) emit cutAvailable( BufferRanges->hasSelection() );
emit copyAvailable( BufferRanges->hasSelection() );
emit selectionChanged( Section.start(), Section.end() );
}
void KHexEdit::selectAll( bool Select )
{
KSection Selection;
pauseCursor( true );
if( !Select )
BufferRanges->removeSelection();
else
{
Selection.set( 0, BufferLayout->length()-1 );
BufferRanges->setSelection( Selection );
BufferCursor->gotoEnd();
}
repaintChanged();
unpauseCursor();
if( !OverWrite ) emit cutAvailable( BufferRanges->hasSelection() );
emit copyAvailable( BufferRanges->hasSelection() );
emit selectionChanged( Selection.start(), Selection.end() );
viewport()->setCursor( isReadOnly() ? arrowCursor : ibeamCursor );
}
bool KHexEdit::hasSelectedData() const
{
return BufferRanges->hasSelection();
}
TQByteArray KHexEdit::selectedData() const
{
if( !BufferRanges->hasSelection() )
return TQByteArray();
KSection Selection = BufferRanges->selection();
TQByteArray SD( Selection.width() );
DataBuffer->copyTo( SD.data(), Selection.start(), Selection.width() );
return SD;
}
KBufferDrag *KHexEdit::dragObject( TQWidget *Parent ) const
{
if( !BufferRanges->hasSelection() )
return 0;
const KOffsetColumn *OC;
const KValueColumn *HC;
const KCharColumn *TC;
KCoordRange Range;
if( static_cast<KHE::KCharColumn *>( ActiveColumn ) == &charColumn() )
{
OC = 0;
HC = 0;
TC = 0;
}
else
{
OC = OffsetColumn->isVisible() ? OffsetColumn : 0;
HC = valueColumn().isVisible() ? &valueColumn() : 0;
TC = charColumn().isVisible() ? &charColumn() : 0;
KSection S = BufferRanges->selection();
Range.set( BufferLayout->coordOfIndex(S.start()),BufferLayout->coordOfIndex(S.end()) );
}
return new KBufferDrag( selectedData(), Range, OC, HC, TC,
charColumn().substituteChar(), charColumn().undefinedChar(),
Codec->name(), Parent );
}
void KHexEdit::cut()
{
if( isReadOnly() || OverWrite )
return;
KBufferDrag *Drag = dragObject();
if( !Drag )
return;
TQApplication::clipboard()->setData( Drag, ClipboardMode );
removeSelectedData();
}
void KHexEdit::copy()
{
KBufferDrag *Drag = dragObject();
if( !Drag )
return;
TQApplication::clipboard()->setData( Drag, ClipboardMode );
}
void KHexEdit::paste()
{
if( isReadOnly() )
return;
TQMimeSource *Source = TQApplication::clipboard()->data( ClipboardMode );
pasteFromSource( Source );
}
void KHexEdit::pasteFromSource( TQMimeSource *Source )
{
if( !Source || !KBufferDrag::canDecode(Source) )
return;
TQByteArray Data;
if( !KBufferDrag::decode(Source,Data) )
return;
if( !Data.isEmpty() )
insert( Data );
}
void KHexEdit::insert( const TQByteArray &D )
{
pauseCursor( true );
KSection ChangedRange;
if( OverWrite )
{
if( BufferRanges->hasSelection() )
{
// replacing the selection:
// we restrict the replacement to the minimum length of selection and input
ChangedRange = BufferRanges->selection();
ChangedRange.restrictEndTo( ChangedRange.start()+D.size()-1 );
int W = DataBuffer->replace( ChangedRange, D.data(), ChangedRange.width() );
BufferCursor->gotoCIndex( ChangedRange.start()+W );
BufferRanges->removeSelection();
}
else
{
if( !BufferCursor->isBehind() )
{
// replacing the normal data, at least until the end
ChangedRange.setByWidth( BufferCursor->realIndex(), D.size() );
ChangedRange.restrictEndTo( BufferLayout->length()-1 );
if( ChangedRange.isValid() )
{
int W = DataBuffer->replace( ChangedRange, D.data(), ChangedRange.width() );
BufferCursor->gotoNextByte( W );
}
}
}
}
else
{
if( BufferRanges->hasSelection() )
{
// replacing the selection
KSection Selection = BufferRanges->selection();
int OldLastIndex = BufferLayout->length() - 1;
int W = DataBuffer->replace( Selection, D.data(), D.size() );
updateLength();
BufferCursor->gotoIndex( Selection.start() + W );
if( W > 0 )
{
if( Selection.width() == (int)D.size() )
ChangedRange = Selection;
else
{
int NewLastIndex = DataBuffer->size() - 1;
ChangedRange.set( Selection.start(), NewLastIndex>OldLastIndex?NewLastIndex:OldLastIndex );
}
}
BufferRanges->removeSelection();
}
else
{
bool Appending = BufferCursor->atAppendPos();
int OldIndex = BufferCursor->realIndex();
int W = DataBuffer->insert( OldIndex, D.data(), D.size() );
updateLength();
// worked?
if( W > 0 )
{
if( Appending )
BufferCursor->gotoEnd();
else
BufferCursor->gotoNextByte( W );
ChangedRange.set( OldIndex, DataBuffer->size()-1 );
}
}
}
bool Changed = ChangedRange.isValid();
if( Changed )
{
BufferRanges->addChangedRange( ChangedRange );
repaintChanged();
}
ensureCursorVisible();
unpauseCursor();
if( Changed ) emit bufferChanged( ChangedRange.start(), ChangedRange.end() );
KSection Selection = BufferRanges->selection();
emit selectionChanged( Selection.start(), Selection.end() );
}
void KHexEdit::removeSelectedData()
{
// Can't we do this?
if( isReadOnly() || OverWrite || ValueEditor->isInEditMode() )
return;
pauseCursor();
KSection Selection = BufferRanges->selection();
BufferRanges->removeFurtherSelections();
KSection ChangedRange = removeData( Selection );
BufferRanges->removeSelection();
repaintChanged();
BufferCursor->gotoCIndex( Selection.start() );
ensureCursorVisible();
// clearUndoRedo();
viewport()->setCursor( isReadOnly() ? arrowCursor : ibeamCursor );
unpauseCursor();
if( ChangedRange.isValid() ) emit bufferChanged( ChangedRange.start(), ChangedRange.end() );
emit selectionChanged( -1, -1 );
}
KSection KHexEdit::removeData( KSection Indizes )
{
// if( undoEnabled )
// {
// checkUndoRedoInfo( UndoRedoInfo::RemoveSelected );
// if( !undoRedoInfo.valid() )
// {
// doc->selectionStart( selNum, undoRedoInfo.id, undoRedoInfo.index );
// undoRedoInfo.d->text = TQString();
// }
// readFormats( c1, c2, undoRedoInfo.d->text, TRUE );
// }
KSection ChangedRange( Indizes.start(), BufferLayout->length()-1 );
// do it!
DataBuffer->remove( Indizes );
updateLength();
BufferRanges->addChangedRange( ChangedRange );
return ChangedRange;
}
void KHexEdit::updateLength()
{
BufferLayout->setLength( DataBuffer->size() );
setNoOfLines( BufferLayout->noOfLines() );
}
void KHexEdit::clipboardChanged()
{
// don't listen to selection changes
disconnect( TQApplication::clipboard(), TQT_SIGNAL(selectionChanged()), this, 0 );
selectAll( false );
}
void KHexEdit::setCursorPosition( int Index, bool Behind )
{
pauseCursor( true );
BufferCursor->gotoCIndex( Index );
if( Behind )
BufferCursor->stepBehind();
BufferRanges->removeSelection();
bool RangesModifed = BufferRanges->isModified();
if( RangesModifed )
{
repaintChanged();
viewport()->setCursor( isReadOnly() ? arrowCursor : ibeamCursor );
}
ensureCursorVisible();
unpauseCursor();
if( RangesModifed )
{
if( !OverWrite ) emit cutAvailable( BufferRanges->hasSelection() );
emit copyAvailable( BufferRanges->hasSelection() );
emit selectionChanged( -1, -1 );
}
}
void KHexEdit::showBufferColumns( int CCs )
{
int Columns = visibleBufferColumns();
// no changes or no column selected?
if( CCs == Columns || !(CCs&( ValueColumnId | CharColumnId )) )
return;
valueColumn().setVisible( ValueColumnId & CCs );
charColumn().setVisible( CharColumnId & CCs );
SecondBorderColumn->setVisible( CCs == (ValueColumnId|CharColumnId) );
// active column not visible anymore?
if( !activeColumn().isVisible() )
{
KBufferColumn *H = ActiveColumn;
ActiveColumn = InactiveColumn;
InactiveColumn = H;
Controller = ReadOnly ? (KController*)Navigator :
cursorColumn() == CharColumnId ? (KController*)CharEditor : (KController*)ValueEditor;
}
updateViewByWidth();
}
void KHexEdit::setCursorColumn( KBufferColumnId CC )
{
// no changes or not visible?
if( CC == cursorColumn()
|| (CC == ValueColumnId && !valueColumn().isVisible())
|| (CC == CharColumnId && !charColumn().isVisible()) )
return;
pauseCursor( true );
if( CC == ValueColumnId )
{
ActiveColumn = &valueColumn();
InactiveColumn = &charColumn();
}
else
{
ActiveColumn = &charColumn();
InactiveColumn = &valueColumn();
}
Controller = ReadOnly ? (KController*)Navigator :
cursorColumn() == CharColumnId ? (KController*)CharEditor : (KController*)ValueEditor;
ensureCursorVisible();
unpauseCursor();
}
void KHexEdit::placeCursor( const TQPoint &Point )
{
resetInputContext();
// switch active column if needed
if( charColumn().isVisible() && Point.x() >= charColumn().x() )
{
ActiveColumn = &charColumn();
InactiveColumn = &valueColumn();
}
else
{
ActiveColumn = &valueColumn();
InactiveColumn = &charColumn();
}
Controller = ReadOnly ? (KController*)Navigator :
cursorColumn() == CharColumnId ? (KController*)CharEditor : (KController*)ValueEditor;
// get coord of click and whether this click was closer to the end of the pos
KBufferCoord C( activeColumn().magPosOfX(Point.x()), lineAt(Point.y()) );
BufferCursor->gotoCCoord( C );
}
int KHexEdit::indexByPoint( const TQPoint &Point ) const
{
const KBufferColumn *C;
if( charColumn().isVisible() && Point.x() >= charColumn().x() )
C = &charColumn();
else
C = &valueColumn();
KBufferCoord Coord( C->posOfX(Point.x()), lineAt(Point.y()) );
return BufferLayout->indexAtCCoord( Coord );
}
void KHexEdit::showEvent( TQShowEvent *e )
{
KColumnsView::showEvent( e );
BufferLayout->setNoOfLinesPerPage( noOfLinesPerPage() );
}
bool KHexEdit::eventFilter( TQObject *O, TQEvent *E )
{
if( TQT_BASE_OBJECT(O) == TQT_BASE_OBJECT(this) || TQT_BASE_OBJECT(O) == TQT_BASE_OBJECT(viewport()) )
{
if( E->type() == TQEvent::FocusIn )
{
startCursor();
}
else if( E->type() == TQEvent::FocusOut )
{
stopCursor();
}
}
// if( O == this && E->type() == TQEvent::PaletteChange )
// {
// TQColor old( viewport()->colorGroup().color(TQColorGroup::Text) );
//
// if( old != colorGroup().color(TQColorGroup::Text) )
// {
// TQColor c( colorGroup().color(TQColorGroup::Text) );
// doc->setMinimumWidth( -1 );
// doc->setDefaultFormat( doc->formatCollection()->defaultFormat()->font(), c );
// lastFormatted = doc->firstParagraph();
// formatMore();
// repaintChanged();
// }
// }
return TQScrollView::eventFilter( O, E );
}
void KHexEdit::blinkCursor()
{
// skip the cursor drawing?
if( CursorPaused || ValueEditor->isInEditMode() )
return;
// switch the cursor state
paintActiveCursor( !BlinkCursorVisible );
}
void KHexEdit::startCursor()
{
CursorPaused = false;
updateCursor();
CursorBlinkTimer->start( TQApplication::cursorFlashTime()/2 );
}
void KHexEdit::unpauseCursor()
{
CursorPaused = false;
if( CursorBlinkTimer->isActive() )
updateCursor();
}
void KHexEdit::updateCursor()
{
createCursorPixmaps();
paintActiveCursor( true );
paintInactiveCursor( true );
}
void KHexEdit::stopCursor()
{
CursorBlinkTimer->stop();
pauseCursor();
}
void KHexEdit::pauseCursor( bool LeaveEdit )
{
paintActiveCursor( false );
paintInactiveCursor( false );
if( LeaveEdit )
ValueEditor->InEditMode = false;
CursorPaused = true;
}
void KHexEdit::createCursorPixmaps()
{
// create CursorPixmaps
CursorPixmaps->setSize( activeColumn().byteWidth(), LineHeight );
int Index = BufferCursor->validIndex();
TQPainter Paint;
Paint.begin( const_cast<TQPixmap*>(&CursorPixmaps->offPixmap()), this );
activeColumn().paintByte( &Paint, Index );
Paint.end();
Paint.begin( const_cast<TQPixmap*>(&CursorPixmaps->onPixmap()), this );
activeColumn().paintCursor( &Paint, Index );
Paint.end();
// calculat the shape
KPixelX CursorX;
KPixelX CursorW;
if( BufferCursor->isBehind() )
{
CursorX = TQMAX( 0, CursorPixmaps->onPixmap().width()-InsertCursorWidth );
CursorW = InsertCursorWidth;
}
else
{
CursorX = 0;
CursorW = OverWrite ? -1 : InsertCursorWidth;
}
CursorPixmaps->setShape( CursorX, CursorW );
}
void KHexEdit::pointPainterToCursor( TQPainter &Painter, const KBufferColumn &Column ) const
{
int x = Column.xOfPos( BufferCursor->pos() ) - contentsX();
int y = LineHeight * BufferCursor->line() - contentsY();
Painter.begin( viewport() );
Painter.translate( x, y );
}
void KHexEdit::paintActiveCursor( bool CursorOn )
{
// any reason to skip the cursor drawing?
if( !isUpdatesEnabled() || !viewport()->isUpdatesEnabled()
|| (CursorOn && !hasFocus() && !viewport()->hasFocus() && !InDnD ) )
return;
TQPainter Painter;
pointPainterToCursor( Painter, activeColumn() );
// paint edited byte?
if( ValueEditor->isInEditMode() )
{
int Index = BufferCursor->index();
if( CursorOn )
valueColumn().paintEditedByte( &Painter, ValueEditor->EditValue, ValueEditor->ByteBuffer );
else
valueColumn().paintByte( &Painter, Index );
}
else
{
Painter.drawPixmap( CursorPixmaps->cursorX(), 0,
CursorOn?CursorPixmaps->onPixmap():CursorPixmaps->offPixmap(),
CursorPixmaps->cursorX(),0,CursorPixmaps->cursorW(),-1 );
// store state
BlinkCursorVisible = CursorOn;
}
}
void KHexEdit::paintInactiveCursor( bool CursorOn )
{
// any reason to skip the cursor drawing?
if( !isUpdatesEnabled()
|| !viewport()->isUpdatesEnabled()
|| !inactiveColumn().isVisible()
|| (CursorOn && !hasFocus() && !viewport()->hasFocus() && !InDnD) )
return;
int Index = BufferCursor->validIndex();
TQPainter Painter;
pointPainterToCursor( Painter, inactiveColumn() );
if( CursorOn )
{
KBufferColumn::KFrameStyle Style =
BufferCursor->isBehind() ? KBufferColumn::Right :
(OverWrite||ValueEditor->isInEditMode()) ? KBufferColumn::Frame :
KBufferColumn::Left;
inactiveColumn().paintFramedByte( &Painter, Index, Style );
}
else
inactiveColumn().paintByte( &Painter, Index );
}
void KHexEdit::drawContents( TQPainter *P, int cx, int cy, int cw, int ch )
{
KColumnsView::drawContents( P, cx, cy, cw, ch );
// TODO: update non blinking cursors. Should this perhaps be done in the buffercolumn?
// Then it needs to know about inactive, insideByte and the like... well...
// perhaps subclassing the buffer columns even more, to KCharColumn and KValueColumn?
if( !CursorPaused && visibleLines(KPixelYs(cy,ch,false)).includes(BufferCursor->line()) )
{
paintActiveCursor( true );
paintInactiveCursor( true );
}
}
void KHexEdit::updateColumn( KColumn &Column )
{
//kdDebug(1501) << "updateColumn\n";
if( Column.isVisible() )
updateContents( Column.x(), 0, Column.width(), totalHeight() );
}
void KHexEdit::keyPressEvent( TQKeyEvent *KeyEvent )
{
if( !Controller->handleKeyPress( KeyEvent ) )
KeyEvent->ignore();
}
void KHexEdit::repaintChanged()
{
if( !isUpdatesEnabled() || !viewport()->isUpdatesEnabled() || !BufferRanges->isModified() )
return;
// TODO: we do this only to let the scrollview handle new or removed lines. overlaps with repaintRange
resizeContents( totalWidth(), totalHeight() );
KPixelXs Xs( contentsX(), visibleWidth(), true );
// collect affected buffer columns
TQPtrList<KBufferColumn> RepaintColumns;
KBufferColumn *C = ValueColumn;
while( true )
{
if( C->isVisible() && C->overlaps(Xs) )
{
RepaintColumns.append( C );
C->preparePainting( Xs );
}
if( C == CharColumn )
break;
C = CharColumn;
}
// any colums to paint?
if( RepaintColumns.count() > 0 )
{
KPixelYs Ys( contentsY(), visibleHeight(), true );
// calculate affected lines/indizes
KSection FullPositions( 0, BufferLayout->noOfBytesPerLine()-1 );
KCoordRange VisibleRange( FullPositions, visibleLines(Ys) );
KCoordRange ChangedRange;
// as there might be multiple selections on this line redo until no more is changed
while( hasChanged(VisibleRange,&ChangedRange) )
{
// std::cout << " changed->"<<FirstChangedIndex<<","<<LastChangedIndex<<std::endl;
// only one line?
if( ChangedRange.start().line() == ChangedRange.end().line() )
for( KBufferColumn *C=RepaintColumns.first(); C; C=RepaintColumns.next() )
paintLine( C, ChangedRange.start().line(),
KSection(ChangedRange.start().pos(),ChangedRange.end().pos()) );
//
else
{
// first line
for( KBufferColumn *C=RepaintColumns.first(); C; C=RepaintColumns.next() )
paintLine( C, ChangedRange.start().line(),
KSection(ChangedRange.start().pos(),FullPositions.end()) );
// at least one full line?
for( int l = ChangedRange.start().line()+1; l < ChangedRange.end().line(); ++l )
for( KBufferColumn *C=RepaintColumns.first(); C; C=RepaintColumns.next() )
paintLine( C, l, FullPositions );
// last line
for( KBufferColumn *C=RepaintColumns.first(); C; C=RepaintColumns.next() )
paintLine( C, ChangedRange.end().line(),
KSection(FullPositions.start(),ChangedRange.end().pos()) );
}
// continue the search at the overnext index
VisibleRange.setStart( ChangedRange.end()+2 );
if( !VisibleRange.isValid() )
break;
}
}
// Paint possible removed bytes at the end of the last line
// Paint new/removed trailing lines
// drawContents( P, cx, cy, cw, ch );
// Paint empty rects
// paintEmptyArea( P, cx, cy, cw, ch );
// BufferLayout->noOfLines()
BufferRanges->resetChangedRanges();
}
void KHexEdit::paintLine( KBufferColumn *C, int Line, KSection Positions )
{
Positions.restrictTo( C->visiblePositions() );
// nothing to paint?
if( !Positions.isValid() )
return;
// std::cout << " paintLine->"<<Line<< ":"<<FirstPos<<","<<LastPos<<std::endl;
// calculating pixel values
KPixelXs XPixels = C->wideXPixelsOfPos( Positions );
KPixelY cy = Line * LineHeight;
// to avoid flickers we first paint to the linebuffer
TQPainter Paint;
Paint.begin( &LineBuffer, this );
Paint.translate( C->x(), 0 );
C->paintPositions( &Paint, Line, Positions );
Paint.translate( -C->x(), 0 );
if( HorizontalGrid && XPixels.start() < TotalWidth )
Paint.drawLine( XPixels.start(), LineHeight-1, XPixels.width(), LineHeight-1 ); // TODO: use a additional TotalHeight?
Paint.end();
// copy to screen
bitBlt( viewport(), XPixels.start() - contentsX(), cy - contentsY(),
&LineBuffer, XPixels.start(), 0, XPixels.width(), LineHeight );
}
bool KHexEdit::hasChanged( const KCoordRange &VisibleRange, KCoordRange *ChangedRange ) const
{
if( !BufferRanges->overlapsChanges(VisibleRange,ChangedRange) )
return false;
ChangedRange->restrictTo( VisibleRange );
return true;
}
void KHexEdit::ensureCursorVisible()
{
// // Not visible or the user is draging the window, so don't position to caret yet
// if ( !isVisible() || isHorizontalSliderPressed() || isVerticalSliderPressed() )
// {
// d->ensureCursorVisibleInShowEvent = true;
// return;
// }
KPixelX x = activeColumn().xOfPos( BufferCursor->pos() )+ activeColumn().byteWidth()/2;
KPixelY y = LineHeight * BufferCursor->line() + LineHeight/2;
int xMargin = activeColumn().byteWidth()/2 + 1;
int yMargin = LineHeight/2 + 1;
ensureVisible( x, y, xMargin, yMargin );
}
void KHexEdit::contentsMousePressEvent( TQMouseEvent *e )
{
// clearUndoRedo();
pauseCursor( true );
// care about a left button press?
if( e->button() == Qt::LeftButton )
{
MousePressed = true;
// select whole line?
if( TrippleClickTimer->isActive()
&& (e->globalPos()-DoubleClickPoint).manhattanLength() < TQApplication::startDragDistance() )
{
BufferRanges->setSelectionStart( BufferLayout->indexAtLineStart(DoubleClickLine) );
BufferCursor->gotoLineEnd();
BufferRanges->setSelectionEnd( BufferCursor->realIndex() );
repaintChanged();
unpauseCursor();
return;
}
TQPoint MousePoint = e->pos();
placeCursor( MousePoint );
ensureCursorVisible();
// start of a drag perhaps?
if( BufferRanges->selectionIncludes(BufferCursor->index()) )
{
DragStartPossible = true;
DragStartTimer->start( TQApplication::startDragTime(), true );
DragStartPoint = MousePoint;
unpauseCursor();
return;
}
int RealIndex = BufferCursor->realIndex();
if( BufferRanges->selectionStarted() )
{
if( e->state() & ShiftButton )
BufferRanges->setSelectionEnd( RealIndex );
else
{
BufferRanges->removeSelection();
BufferRanges->setSelectionStart( RealIndex );
}
}
else // start of a new selection possible
{
BufferRanges->setSelectionStart( RealIndex );
if( !isReadOnly() && (e->state()&ShiftButton) ) // TODO: why only for readwrite?
BufferRanges->setSelectionEnd( RealIndex );
}
BufferRanges->removeFurtherSelections();
}
else if( e->button() == Qt::MidButton )
BufferRanges->removeSelection();
if( BufferRanges->isModified() )
{
repaintChanged();
viewport()->setCursor( isReadOnly() ? arrowCursor : ibeamCursor );
}
unpauseCursor();
}
void KHexEdit::contentsMouseMoveEvent( TQMouseEvent *e )
{
if( MousePressed )
{
if( DragStartPossible )
{
DragStartTimer->stop();
// moved enough for a drag?
if( (e->pos()-DragStartPoint).manhattanLength() > TQApplication::startDragDistance() )
startDrag();
if( !isReadOnly() )
viewport()->setCursor( ibeamCursor );
return;
}
// selecting
TQPoint MousePoint = e->pos();
handleMouseMove( MousePoint );
}
else if( !isReadOnly() )
{
// visual feedback for possible dragging
bool InSelection = BufferRanges->hasSelection() && BufferRanges->selectionIncludes( indexByPoint(e->pos()) );
viewport()->setCursor( InSelection?arrowCursor:ibeamCursor );
}
}
void KHexEdit::contentsMouseReleaseEvent( TQMouseEvent *e )
{
// this is not the release of a doubleclick so we need to process it?
if( !InDoubleClick )
{
int Line = lineAt( e->pos().y() );
int Pos = activeColumn().posOfX( e->pos().x() ); // TODO: can we be sure here about the active column?
int Index = BufferLayout->indexAtCCoord( KBufferCoord(Pos,Line) ); // TODO: can this be another index than the one of the cursor???
emit clicked( Index );
}
if( MousePressed )
{
MousePressed = false;
if( ScrollTimer->isActive() )
ScrollTimer->stop();
// was only click inside selection, nothing dragged?
if( DragStartPossible )
{
selectAll( false );
DragStartTimer->stop();
DragStartPossible = false;
unpauseCursor();
}
// was end of selection operation?
else if( BufferRanges->hasSelection() )
{
if( TQApplication::clipboard()->supportsSelection() )
{
ClipboardMode = TQClipboard::Selection;
disconnect( TQApplication::clipboard(), TQT_SIGNAL(selectionChanged()), this, 0);
copy();
connect( TQApplication::clipboard(), TQT_SIGNAL(selectionChanged()), this, TQT_SLOT(clipboardChanged()) );
ClipboardMode = TQClipboard::Clipboard;
}
}
}
// middle mouse button paste?
else if( e->button() == Qt::MidButton && !isReadOnly() )
{
pauseCursor();
placeCursor( e->pos() );
// replace no selection?
if( BufferRanges->hasSelection() && !BufferRanges->selectionIncludes(BufferCursor->index()) )
BufferRanges->removeSelection();
ClipboardMode = TQClipboard::Selection;
paste();
ClipboardMode = TQClipboard::Clipboard;
// ensure selection changes to be drawn TODO: create a insert/pasteAtCursor that leaves out drawing
repaintChanged();
ensureCursorVisible();
unpauseCursor();
}
InDoubleClick = false;
if( BufferRanges->selectionJustStarted() )
BufferRanges->removeSelection();
emit cursorPositionChanged( BufferCursor->index() );
if( !OverWrite ) emit cutAvailable( BufferRanges->hasSelection() );
emit copyAvailable( BufferRanges->hasSelection() );
KSection Selection = BufferRanges->selection();
emit selectionChanged( Selection.start(), Selection.end() );
}
// gets called after press and release instead of a plain press event (?)
void KHexEdit::contentsMouseDoubleClickEvent( TQMouseEvent *e )
{
// we are only interested in LMB doubleclicks
if( e->button() != Qt::LeftButton )
{
e->ignore();
return;
}
DoubleClickLine = BufferCursor->line();
int Index = BufferCursor->validIndex();
if( ActiveColumn == &charColumn() )
{
selectWord( Index );
// as we already have a doubleclick maybe it is a tripple click
TrippleClickTimer->start( tqApp->doubleClickInterval(), true );
DoubleClickPoint = e->globalPos();
}
// else
// ValueEditor->goInsideByte(); TODO: make this possible again
InDoubleClick = true; //
MousePressed = true;
emit doubleClicked( Index );
}
void KHexEdit::autoScrollTimerDone()
{
if( MousePressed )
handleMouseMove( viewportToContents(viewport()->mapFromGlobal( TQCursor::pos() )) );
}
void KHexEdit::handleMouseMove( const TQPoint& Point ) // handles the move of the mouse with pressed buttons
{
// no scrolltimer and outside of viewport?
if( !ScrollTimer->isActive() && Point.y() < contentsY() || Point.y() > contentsY() + visibleHeight() )
ScrollTimer->start( DefaultScrollTimerPeriod, false );
// scrolltimer but inside of viewport?
else if( ScrollTimer->isActive() && Point.y() >= contentsY() && Point.y() <= contentsY() + visibleHeight() )
ScrollTimer->stop();
pauseCursor();
placeCursor( Point );
ensureCursorVisible();
// do wordwise selection?
if( InDoubleClick && BufferRanges->hasFirstWordSelection() )
{
int NewIndex = BufferCursor->realIndex();
KSection FirstWordSelection = BufferRanges->firstWordSelection();
KWordBufferService WBS( DataBuffer, Codec );
// are we before the selection?
if( NewIndex < FirstWordSelection.start() )
{
BufferRanges->ensureWordSelectionForward( false );
NewIndex = WBS.indexOfLeftWordSelect( NewIndex );
}
// or behind?
else if( NewIndex > FirstWordSelection.end() )
{
BufferRanges->ensureWordSelectionForward( true );
NewIndex = WBS.indexOfRightWordSelect( NewIndex );
}
// or inside?
else
{
BufferRanges->ensureWordSelectionForward( true );
NewIndex = FirstWordSelection.end()+1;
}
BufferCursor->gotoIndex( NewIndex );
}
if( BufferRanges->selectionStarted() )
BufferRanges->setSelectionEnd( BufferCursor->realIndex() );
repaintChanged();
unpauseCursor();
}
void KHexEdit::startDrag()
{
// reset states
MousePressed = false;
InDoubleClick = false;
DragStartPossible = false;
// create data
TQDragObject *Drag = dragObject( viewport() );
if( !Drag )
return;
// will we only copy the data?
if( isReadOnly() || OverWrite )
Drag->dragCopy();
// or is this left to the user and he choose to move?
else if( Drag->drag() )
// Not inside this widget itself?
if( TQDragObject::target() != this && TQDragObject::target() != viewport() )
removeSelectedData();
}
void KHexEdit::contentsDragEnterEvent( TQDragEnterEvent *e )
{
// interesting for this widget?
if( isReadOnly() || !KBufferDrag::canDecode(e) )
{
e->ignore();
return;
}
e->acceptAction();
InDnD = true;
}
void KHexEdit::contentsDragMoveEvent( TQDragMoveEvent *e )
{
// is this content still interesting for us?
if( isReadOnly() || !KBufferDrag::canDecode(e) )
{
e->ignore();
return;
}
// let text cursor follow mouse
pauseCursor( true );
placeCursor( e->pos() );
unpauseCursor();
e->acceptAction();
}
void KHexEdit::contentsDragLeaveEvent( TQDragLeaveEvent * )
{
// bye... and thanks for all the cursor movement...
InDnD = false;
}
void KHexEdit::contentsDropEvent( TQDropEvent *e )
{
// after drag enter and move check one more time
if( isReadOnly() )
return;
// leave state
InDnD = false;
e->acceptAction();
if( !KBufferDrag::canDecode(e) ) //TODO: why do we acept the action still?
return;
// is this an internal dnd?
if( e->source() == this || e->source() == viewport() )
handleInternalDrag( e );
else
{
//BufferRanges->removeSelection();
pasteFromSource( e );
}
}
void KHexEdit::handleInternalDrag( TQDropEvent *e )
{
KSection ChangedRange;
// stop ui
pauseCursor();
// get drag origin
KSection Selection = BufferRanges->selection();
int InsertIndex = BufferCursor->realIndex();
// is this a move?
if( e->action() == TQDropEvent::Move )
{
// ignore the copy hold in the event but only move
int NewIndex = DataBuffer->move( InsertIndex, Selection );
if( NewIndex != Selection.start() )
{
BufferCursor->gotoCIndex( NewIndex+Selection.width() );
ChangedRange.set( TQMIN(InsertIndex,Selection.start()), TQMAX(InsertIndex,Selection.end()) );
}
}
// is a copy
else
{
// get data
TQByteArray Data;
if( KBufferDrag::decode(e,Data) && !Data.isEmpty() )
{
if( OverWrite )
{
if( !BufferCursor->isBehind() )
{
ChangedRange.setByWidth( InsertIndex, Data.size() );
ChangedRange.restrictEndTo( BufferLayout->length()-1 );
if( ChangedRange.isValid() )
{
int NoOfReplaced = DataBuffer->replace( ChangedRange, Data.data(), ChangedRange.width() );
BufferCursor->gotoNextByte( NoOfReplaced );
}
}
}
else
{
int NoOfInserted = DataBuffer->insert( InsertIndex, Data.data(), Data.size() );
updateLength();
if( NoOfInserted > 0 )
{
BufferCursor->gotoCIndex( InsertIndex + NoOfInserted );
ChangedRange.set( InsertIndex, DataBuffer->size()-1 );
}
}
}
}
BufferRanges->addChangedRange( ChangedRange );
BufferRanges->removeSelection();
repaintChanged();
ensureCursorVisible();
// open ui
unpauseCursor();
// emit appropriate signals.
emit selectionChanged( -1, -1 );
if( ChangedRange.isValid() ) emit bufferChanged( ChangedRange.start(), ChangedRange.end() );
emit cursorPositionChanged( BufferCursor->index() );
}
void KHexEdit::contentsWheelEvent( TQWheelEvent *e )
{
if( isReadOnly() )
{
if( e->state() & ControlButton )
{
if( e->delta() > 0 )
zoomOut();
else if( e->delta() < 0 )
zoomIn();
return;
}
}
TQScrollView::contentsWheelEvent( e );
}
#if 0
void KHexEdit::contentsContextMenuEvent( TQContextMenuEvent *e )
{
// clearUndoRedo();
MousePressed = false;
e->accept();
TQPopupMenu *PopupMenu = createPopupMenu( e->pos() );
if( !PopupMenu )
PopupMenu = createPopupMenu();
if( !PopupMenu )
return;
int r = PopupMenu->exec( e->globalPos() );
delete PopupMenu;
if ( r == d->id[ IdClear ] )
clear();
else if ( r == d->id[ IdSelectAll ] )
{
selectAll();
// if the clipboard support selections, put the newly selected text into the clipboard
if( TQApplication::clipboard()->supportsSelection() )
{
ClipboardMode = TQClipboard::Selection;
disconnect( TQApplication::clipboard(), TQT_SIGNAL(selectionChanged()), this, 0);
copy();
connect( TQApplication::clipboard(), TQT_SIGNAL(selectionChanged()), this, TQT_SLOT(clipboardChanged()) );
ClipboardMode = TQClipboard::Clipboard;
}
}
else if( r == d->id[IdUndo] )
undo();
else if( r == d->id[IdRedo] )
redo();
else if( r == d->id[IdCut] )
cut();
else if( r == d->id[IdCopy] )
copy();
else if( r == d->id[IdPaste] )
paste();
}
#endif
#include "khexedit.moc"
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