From 2bda8f7717adf28da4af0d34fb82f63d2868c31d Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: 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 --- khexedit/lib/kbuffercolumn.h | 253 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 khexedit/lib/kbuffercolumn.h (limited to 'khexedit/lib/kbuffercolumn.h') diff --git a/khexedit/lib/kbuffercolumn.h b/khexedit/lib/kbuffercolumn.h new file mode 100644 index 0000000..76ed8bc --- /dev/null +++ b/khexedit/lib/kbuffercolumn.h @@ -0,0 +1,253 @@ +/*************************************************************************** + kbuffercolumn.h - description + ------------------- + begin : Mit Mai 14 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. * + * * + ***************************************************************************/ + + +#ifndef KHE_KBUFFERCOLUMN_H +#define KHE_KBUFFERCOLUMN_H + +// lib specific +#include "khe.h" +#include "kdatabuffer.h" +#include "khechar.h" +#include "kcolumn.h" +#include "kbufferlayout.h" +#include "ksection.h" + +class QPainter; +class QColor; + +namespace KHE +{ + +// class KHexEdit; +class KBufferRanges; +class KCharCodec; + +const int NoByteFound = -1; + +/** base class of all buffer column displayers + * holds all information about the vertical layout of a buffer column + * knows how to paint the data and the editing things (focus, cursor, selection) + * but does not offer + * + *@author Friedrich W. H. Kossebauint KBufferColumn::posOfX( KPixelX PX, bool *ToTheRightFlag ) const + */ +class KBufferColumn : public KColumn +{ + public: + enum KFrameStyle { Frame, Left, Right }; + public: + KBufferColumn( KColumnsView/*KHexEdit*/ *HE, KDataBuffer *B, KBufferLayout *L, KBufferRanges *R ); + virtual ~KBufferColumn(); + + + public: // KColumn-API + virtual void paintFirstLine( QPainter *P, KPixelXs Xs, int FirstLine ); + virtual void paintNextLine( QPainter *P ); + + public: + void preparePainting( KPixelXs Xs ); + + public: + void paintLine( QPainter *P, int Line ); + void paintPositions( QPainter *P, int Line, KSection Positions ); + /** paints a cursor based on the type of the byte. + * @param Index Index of the byte to paint the cursor for. If -1 a space is used as char. + */ + void paintCursor( QPainter *P, int Index ); + /** paints the byte with background. + * @param Index Index of the byte to paint. If -1 only the background is painted. + */ + void paintByte( QPainter *P, int Index ); + /** paints the byte with background and a frame around. + * @param Index Index of the byte to paint the frame for. If -1 a space is used as char. + * @param Style the style of the framing + */ + void paintFramedByte( QPainter *P, int Index, KFrameStyle Style ); + + + public: // modification access + /** sets the spacing in the hex column + * @param ByteSpacingW spacing between the bytes in pixels + * @param NewNoOfGroupedBytes numbers of grouped bytes, 0 means no grouping + * @param GroupSpacingW spacing between the groups in pixels + * returns true if there was a change + */ + bool setSpacing( KPixelX ByteSpacingW, int NewNoOfGroupedBytes = 0, KPixelX GroupSpacingW = 0 ); + /** sets the spacing between the bytes in the hex column + * @param ByteSpacingW spacing between the bytes in pixels + * returns true if there was a change + */ + bool setByteSpacingWidth( KPixelX ByteSpacingW ); + /** sets the number of grouped bytes in the hex column + * @param NewNoOfGroupedBytes numbers of grouped bytes, 0 means no grouping + * returns true if there was a change + */ + bool setNoOfGroupedBytes( int NewNoOfGroupedBytes ); + /** sets the spacing between the groups of bytes in the hex column + * @param GroupSpacingW spacing between the groups in pixels + * returns true if there was a change + */ + bool setGroupSpacingWidth( KPixelX GroupSpacingW ); + /** sets width of digits and recalculates depend sizes + * returns true if there was a change + */ + bool setDigitWidth( KPixelX DW ); + /** sets the metrics of the used font + * @param NewDigitWidth the new width of a digit + * @param NewDigitBaseLine the new baseline of the digits + */ + void setMetrics( KPixelX NewDigitWidth, KPixelY NewDigitBaseLine ); + /** */ + void set( KDataBuffer *B ); + /** creates new buffer for x-values; to be called on any change of NoOfBytesPerLine or metrics */ + void resetXBuffer(); + /** sets the codec to be used by the char column. */ + void setCodec( KCharCodec *C ); + + public: // functional logic + /** returns byte positions covered by pixels with absolute x-coord x */ + KSection posOfX( KPixelX x, KPixelX w ) const; + /** returns byte pos at pixel with absolute x-coord x */ + int posOfX( KPixelX x ) const; + /** returns byte pos at pixel with absolute x-coord x, and sets the flag to true if we are closer to the right */ + int magPosOfX( KPixelX PX ) const; + /** returns absolute x-coord of byte at position Pos */ + KPixelX xOfPos( int Pos ) const; + /** returns right absolute x-coord of byte at position Pos */ + KPixelX rightXOfPos( int Pos ) const; + /** returns byte pos at pixel with relative x-coord x */ + int posOfRelX( KPixelX x ) const; + /** returns byte positions covered by pixels with relative x-coord x */ + KSection posOfRelX( KPixelX x, KPixelX w ) const; + /** returns relative x-coord of byte at position Pos */ + KPixelX relXOfPos( int Pos ) const; + /** returns right relative x-coord of byte at position Pos */ + KPixelX relRightXOfPos( int Pos ) const; + /** returns the positions that overlap with the absolute x-coords */ + KSection visiblePositions( KPixelX x, KPixelX w ) const; + /** returns the */ + KPixelXs wideXPixelsOfPos( KSection Positions ) const; + /** */ + KPixelXs relWideXPixelsOfPos( KSection Positions ) const; + + public: // value access + KPixelX byteWidth() const; + KPixelX digitWidth() const; + KPixelX groupSpacingWidth() const; + KPixelX byteSpacingWidth() const; + int noOfGroupedBytes() const; + + int firstPos() const; + int lastPos() const; + KSection visiblePositions() const; + const KBufferLayout *layout() const; + KCharCodec* codec() const; + + protected: + /** */ + void recalcX(); + void recalcVerticalGridX(); + + + protected: // API to be refined + /** default implementation simply prints the byte as ASCII */ + virtual void drawByte( QPainter *P, char Byte, KHEChar B, const QColor &Color ) const; + /** default implementation sets byte width to one digit width */ + virtual void recalcByteWidth(); + + + protected: + void paintGrid( QPainter *P, KSection Range ); + void paintPlain( QPainter *P, KSection Positions, int Index ); + void paintSelection( QPainter *P, KSection Positions, int Index, int Flag ); + void paintMarking( QPainter *P, KSection Positions, int Index, int Flag ); + void paintRange( QPainter *P, const QColor &Color, KSection Positions, int Flag ); + + bool isSelected( KSection Range, KSection *Selection, unsigned int *Flag ) const; + bool isMarked( KSection Range, KSection *Marking, unsigned int *Flag ) const; + + + protected: + /** pointer to the buffer */ + KDataBuffer *Buffer; + /** pointer to the layout */ + const KBufferLayout *Layout; + /** pointer to the ranges */ + KBufferRanges *Ranges; + /** */ + KCharCodec *Codec; + + /** */ + KPixelX DigitWidth; + /** */ + KPixelY DigitBaseLine; + /** */ + KPixelX VerticalGridX; + /** */ + bool VerticalGrid; + + protected: // individual data + /** total width of byte display in pixel */ + KPixelX ByteWidth; + /** width of inserting cursor in pixel */ + KPixelX CursorWidth; + /** size of the line margin */ + KPixelX ByteSpacingWidth; + /** width of spacing in pixel */ + KPixelX GroupSpacingWidth; + + /** number of grouped bytes */ + int NoOfGroupedBytes; + + /** pointer to array with buffered positions (relative to column position) + * a spacing gets assigned to the left byte -> ...c|c|c |c|c... + */ + KPixelX *PosX; + KPixelX *PosRightX; + /** index of right position */ + int LastPos; + + + protected: // buffering drawing data + KSection PaintPositions; + int PaintLine; + KPixelX PaintX; + KPixelX PaintW; + int SpacingTrigger; +}; + + +inline KPixelX KBufferColumn::byteWidth() const { return ByteWidth; } +inline KPixelX KBufferColumn::digitWidth() const { return DigitWidth; } +inline KPixelX KBufferColumn::byteSpacingWidth() const { return ByteSpacingWidth; } +inline KPixelX KBufferColumn::groupSpacingWidth() const { return GroupSpacingWidth; } + +inline int KBufferColumn::noOfGroupedBytes() const { return NoOfGroupedBytes; } + +inline int KBufferColumn::firstPos() const { return PaintPositions.start(); } +inline int KBufferColumn::lastPos() const { return PaintPositions.end(); } +inline KSection KBufferColumn::visiblePositions() const { return PaintPositions; } + +inline const KBufferLayout *KBufferColumn::layout() const { return Layout; } + + +inline void KBufferColumn::setCodec( KCharCodec *C ) { Codec = C; } +inline KCharCodec* KBufferColumn::codec() const { return Codec; } + +} + +#endif -- cgit v1.2.1