summaryrefslogtreecommitdiffstats
path: root/khexedit/lib/kbufferlayout.cpp
diff options
context:
space:
mode:
authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit2bda8f7717adf28da4af0d34fb82f63d2868c31d (patch)
tree8d927b7b47a90c4adb646482a52613f58acd6f8c /khexedit/lib/kbufferlayout.cpp
downloadtdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.tar.gz
tdeutils-2bda8f7717adf28da4af0d34fb82f63d2868c31d.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeutils@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'khexedit/lib/kbufferlayout.cpp')
-rw-r--r--khexedit/lib/kbufferlayout.cpp240
1 files changed, 240 insertions, 0 deletions
diff --git a/khexedit/lib/kbufferlayout.cpp b/khexedit/lib/kbufferlayout.cpp
new file mode 100644
index 0000000..a2ea9a0
--- /dev/null
+++ b/khexedit/lib/kbufferlayout.cpp
@@ -0,0 +1,240 @@
+/***************************************************************************
+ kbufferlayout.cpp - description
+ -------------------
+ begin : Thu Jun 12 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 "kbufferlayout.h"
+
+using namespace KHE;
+
+
+
+KBufferLayout::KBufferLayout( int NoBpL, int SO, int L )
+ : NoOfBytesPerLine( NoBpL ),
+ StartOffset( SO ),
+ Length( L )
+{
+ calcStart();
+ calcEnd();
+}
+
+
+KBufferLayout::~KBufferLayout()
+{
+}
+
+
+bool KBufferLayout::setStartOffset( int SO )
+{
+ // rejecting <0
+ if( SO < 0 )
+ SO = 0;
+
+ if( StartOffset == SO )
+ return false;
+
+ StartOffset = SO;
+
+ calcStart();
+ calcEnd();
+ return true;
+}
+
+
+bool KBufferLayout::setNoOfBytesPerLine( int N )
+{
+ // rejecting <1
+ if( N < 1 )
+ N = 1;
+
+ // no changes?
+ if( NoOfBytesPerLine == N )
+ return false;
+
+ NoOfBytesPerLine = N;
+
+ calcStart();
+ calcEnd();
+ return true;
+}
+
+
+bool KBufferLayout::setLength( int L )
+{
+ // rejecting < 0
+ if( L < 0 )
+ L = 0;
+
+ // no changes?
+ if( Length == L )
+ return false;
+
+ Length = L;
+
+ calcEnd();
+ return true;
+}
+
+
+void KBufferLayout::setNoOfLinesPerPage( int N )
+{
+ NoOfLinesPerPage = N;
+}
+
+
+void KBufferLayout::calcStart()
+{
+ ContentCoords.setStart( KBufferCoord(StartOffset,NoOfBytesPerLine,false) );
+}
+
+
+void KBufferLayout::calcEnd()
+{
+ ContentCoords.setEnd( (Length>0)?KBufferCoord(Length-1+StartOffset,NoOfBytesPerLine,false):
+ KBufferCoord(-1,ContentCoords.start().line()) );
+}
+
+
+int KBufferLayout::indexAtCLineStart( int L ) const
+{
+ return ( L <= ContentCoords.start().line() ) ? 0:
+ ( L > ContentCoords.end().line() ) ? Length-1:
+ L * NoOfBytesPerLine - StartOffset;
+}
+
+
+int KBufferLayout::indexAtCLineEnd( int L ) const
+{
+ return ( L < ContentCoords.start().line() ) ? 0:
+ ( L >= ContentCoords.end().line() ) ? Length-1:
+ (L+1)*NoOfBytesPerLine-StartOffset-1;
+}
+
+
+int KBufferLayout::indexAtCCoord( const KBufferCoord &C ) const
+{
+ int Index = indexAtCoord( C );
+
+ return ( Index <= 0 ) ? 0:
+ ( Index >= Length ) ? Length-1:
+ Index;
+}
+
+
+int KBufferLayout::lineAtCIndex( int Index ) const
+{
+ return ( Index <= 0 ) ? ContentCoords.start().line():
+ ( Index >= Length ) ? ContentCoords.end().line():
+ lineAtIndex(Index);
+}
+
+
+KBufferCoord KBufferLayout::coordOfCIndex( int Index ) const
+{
+ return ( Index <= 0 ) ? ContentCoords.start():
+ ( Index >= Length ) ? ContentCoords.end():
+ coordOfIndex(Index);
+}
+
+
+int KBufferLayout::indexAtLineStart( int L ) const
+{
+ return ( L == ContentCoords.start().line() ) ? 0 : L*NoOfBytesPerLine-StartOffset;
+}
+
+
+int KBufferLayout::indexAtLineEnd( int L ) const
+{
+ return ( L == ContentCoords.end().line() ) ? Length-1 : (L+1)*NoOfBytesPerLine-StartOffset-1;
+}
+
+
+int KBufferLayout::indexAtCoord( const KBufferCoord &C ) const
+{
+ return C.indexByLineWidth( NoOfBytesPerLine ) - StartOffset;
+}
+
+int KBufferLayout::lineAtIndex( int Index ) const
+{
+ return (Index+StartOffset)/NoOfBytesPerLine;
+}
+
+KBufferCoord KBufferLayout::coordOfIndex( int Index ) const
+{
+ return KBufferCoord( Index+StartOffset, NoOfBytesPerLine, false );
+}
+
+
+
+int KBufferLayout::correctIndex( int I ) const
+{
+ return ( I <= 0 ) ? 0:
+ ( I >= Length ) ? Length-1:
+ I;
+}
+
+
+KBufferCoord KBufferLayout::correctCoord( const KBufferCoord &C ) const
+{
+ return ( C <= ContentCoords.start() ) ? ContentCoords.start():
+ ( C >= ContentCoords.end() ) ? ContentCoords.end():
+ ( C.pos() >= NoOfBytesPerLine ) ? KBufferCoord( NoOfBytesPerLine-1, C.line() ):
+ C;
+}
+
+
+bool KBufferLayout::atLineStart( const KBufferCoord &C ) const
+{
+ return ( C.line() == ContentCoords.start().line() ) ? C.pos() == ContentCoords.start().pos():
+ C.pos() == 0;
+}
+
+bool KBufferLayout::atLineEnd( const KBufferCoord &C ) const
+{
+ return ( C.line() == ContentCoords.end().line() ) ? C.pos() == ContentCoords.end().pos():
+ C.pos() == NoOfBytesPerLine-1;
+}
+
+
+KSection KBufferLayout::positions( int Line ) const
+{
+ return KSection( firstPos(Line), lastPos(Line) );
+}
+
+
+int KBufferLayout::firstPos( const KBufferCoord &C ) const
+{
+ return ( ContentCoords.start().isLaterInLineThan(C) ) ? ContentCoords.start().pos() : C.pos();
+}
+
+int KBufferLayout::lastPos( const KBufferCoord &C ) const
+{
+ return ( ContentCoords.end().isPriorInLineThan(C) ) ? ContentCoords.end().pos() : C.pos();
+}
+
+int KBufferLayout::firstPos( int Line ) const
+{
+ return Line == ContentCoords.start().line() ? ContentCoords.start().pos() : 0;
+}
+
+int KBufferLayout::lastPos( int Line ) const
+{
+ return ( Line == ContentCoords.end().line() ) ? ContentCoords.end().pos() : NoOfBytesPerLine-1;
+}
+
+bool KBufferLayout::hasContent( int Line ) const
+{
+ return ContentCoords.includesLine( Line );
+}