Stefano Ceccherini
f900119889
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9647 a95241bf-73f2-0310-859d-f6bbb57e9c96
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
//------------------------------------------------------------------------------
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// Copyright (c) 2001-2004, Haiku, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: TextGapBuffer.h
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// Author: Marc Flerackers ([email protected])
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// Description: Text storage used by BTextView
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//------------------------------------------------------------------------------
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#ifndef __TEXTGAPBUFFER_H
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#define __TEXTGAPBUFFER_H
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#include <SupportDefs.h>
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class BFile;
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// _BTextGapBuffer_ class ------------------------------------------------------
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class _BTextGapBuffer_ {
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public:
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_BTextGapBuffer_();
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virtual ~_BTextGapBuffer_();
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void InsertText(const char *inText, int32 inNumItems, int32 inAtIndex);
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void InsertText(BFile *file, int32 fileOffset, int32 amount, int32 atIndex);
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void RemoveRange(int32 start, int32 end);
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void MoveGapTo(int32 toIndex);
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void SizeGapTo(int32 inCount);
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const char *GetString(int32 fromOffset, int32 numChars);
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bool FindChar(char inChar, int32 fromIndex, int32 *ioDelta);
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const char *Text();
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int32 Length() const;
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char operator[](int32 index) const;
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// char *RealText();
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void GetString(int32 offset, int32 length, char *buffer);
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// void GetString(int32, int32 *);
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char RealCharAt(int32 offset) const;
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bool PasswordMode() const;
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void SetPasswordMode(bool);
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// void Resize(int32 size);
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protected:
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int32 fExtraCount; // when realloc()-ing
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int32 fItemCount; // logical count
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char *fBuffer; // allocated memory
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int32 fBufferCount; // physical count
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int32 fGapIndex; // gap position
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int32 fGapCount; // gap count
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char *fScratchBuffer; // for GetString
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int32 fScratchSize; // scratch size
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bool fPasswordMode;
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};
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inline int32
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_BTextGapBuffer_::Length() const
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{
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return fItemCount;
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}
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inline char
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_BTextGapBuffer_::operator[](long index) const
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{
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return (index < fGapIndex) ? fBuffer[index] : fBuffer[index + fGapCount];
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}
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#endif //__TEXTGAPBUFFER_H
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