Moved these files to /current/headers/private/interface

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6095 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2004-01-15 07:18:38 +00:00
parent 8db7015c26
commit e1e76c7813
3 changed files with 0 additions and 235 deletions

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//------------------------------------------------------------------------------
// Copyright (c) 2001-2003, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: TextViewSupportBuffer.h
// Author: Marc Flerackers (mflerackers@androme.be)
// Description: Template class used to implement the various BTextView
// buffer classes.
//------------------------------------------------------------------------------
#ifndef __TEXT_VIEW_SUPPORT_BUFFER__H__
#define __TEXT_VIEW_SUPPORT_BUFFER__H__
// Standard Includes -----------------------------------------------------------
#include <cstdlib>
#include <cstring>
// System Includes -------------------------------------------------------------
#include <SupportDefs.h>
// Project Includes ------------------------------------------------------------
// Local Includes --------------------------------------------------------------
// Local Defines ---------------------------------------------------------------
// Globals ---------------------------------------------------------------------
// _BTextViewSupportBuffer_ class ----------------------------------------------
template <class T>
class _BTextViewSupportBuffer_ {
public:
_BTextViewSupportBuffer_(int32 inExtraCount = 0, int32 inCount = 0);
virtual ~_BTextViewSupportBuffer_();
void InsertItemsAt(int32 inNumItems, int32 inAtIndex, const T *inItem);
void RemoveItemsAt(int32 inNumItems, int32 inAtIndex);
int32 ItemCount() const;
protected:
int32 fExtraCount;
int32 fItemCount;
int32 fBufferCount;
T* fBuffer;
};
//------------------------------------------------------------------------------
template <class T>
_BTextViewSupportBuffer_<T>::_BTextViewSupportBuffer_(int32 inExtraCount,
int32 inCount)
: fExtraCount(inExtraCount),
fItemCount(inCount),
fBufferCount(fExtraCount + fItemCount),
fBuffer(NULL)
{
fBuffer = (T *)calloc(fExtraCount + fItemCount, sizeof(T));
}
//------------------------------------------------------------------------------
template <class T>
_BTextViewSupportBuffer_<T>::~_BTextViewSupportBuffer_()
{
free(fBuffer);
}
//------------------------------------------------------------------------------
template <class T>
void _BTextViewSupportBuffer_<T>::InsertItemsAt(int32 inNumItems,
int32 inAtIndex,
const T *inItem)
{
if (inNumItems < 1)
return;
inAtIndex = (inAtIndex > fItemCount) ? fItemCount : inAtIndex;
inAtIndex = (inAtIndex < 0) ? 0 : inAtIndex;
int32 delta = inNumItems * sizeof(T);
int32 logSize = fItemCount * sizeof(T);
if ((logSize + delta) >= fBufferCount) {
fBufferCount = logSize + delta + (fExtraCount * sizeof(T));
fBuffer = (T *)realloc(fBuffer, fBufferCount);
}
T *loc = fBuffer + inAtIndex;
memmove(loc + inNumItems, loc, (fItemCount - inAtIndex) * sizeof(T));
memcpy(loc, inItem, delta);
fItemCount += inNumItems;
}
//------------------------------------------------------------------------------
template <class T>
void
_BTextViewSupportBuffer_<T>::RemoveItemsAt(int32 inNumItems,
int32 inAtIndex)
{
if (inNumItems < 1)
return;
inAtIndex = (inAtIndex > fItemCount - 1) ? (fItemCount - 1) : inAtIndex;
inAtIndex = (inAtIndex < 0) ? 0 : inAtIndex;
T *loc = fBuffer + inAtIndex;
memmove(loc, loc + inNumItems,
(fItemCount - (inNumItems + inAtIndex)) * sizeof(T));
int32 delta = inNumItems * sizeof(T);
int32 logSize = fItemCount * sizeof(T);
uint32 extraSize = fBufferCount - (logSize - delta);
if (extraSize > (fExtraCount * sizeof(T))) {
fBufferCount = (logSize - delta) + (fExtraCount * sizeof(T));
fBuffer = (T *)realloc(fBuffer, fBufferCount);
}
fItemCount -= inNumItems;
}
//------------------------------------------------------------------------------
template<class T>
inline int32
_BTextViewSupportBuffer_<T>::ItemCount() const
{
return fItemCount;
}
//------------------------------------------------------------------------------
#endif // __TEXT_VIEW_SUPPORT_BUFFER__H__
/*
* $Log $
*
* $Id $
*
*/

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#ifndef __WIDTHBUFFER_H
#define __WIDTHBUFFER_H
#include "TextGapBuffer.h"
#include "TextViewSupportBuffer.h"
struct _width_table_ {
#if B_BEOS_VERSION_DANO
BFont font; // corresponding font
#else
int32 fontCode; // font code
float fontSize; // font size
#endif
int32 hashCount; // number of hashed items
int32 tableCount; // size of table
void *widths; // width table
};
class _BWidthBuffer_ : public _BTextViewSupportBuffer_<_width_table_> {
public:
_BWidthBuffer_();
virtual ~_BWidthBuffer_();
float StringWidth(const char *inText, int32 fromOffset, int32 length,
const BFont *inStyle);
float StringWidth(_BTextGapBuffer_ &, int32 fromOffset, int32 length,
const BFont *inStyle);
private:
bool FindTable(const BFont *font, int32 *outIndex);
int32 InsertTable(const BFont *font);
bool GetEscapement(uint32, int32, float *);
float HashEscapements(const char *, int32, int32, int32, const BFont *);
static uint32 Hash(uint32);
};
#endif // __WIDTHBUFFER_H

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#ifndef __MOREUTF8
#define __MOREUTF8
static inline bool
IsInsideGlyph(uchar ch)
{
return (ch & 0xC0) == 0x80;
}
static inline uint32
UTF8NextCharLen(const char *text)
{
const char *ptr = text;
if (ptr == NULL || *ptr == 0)
return 0;
do {
ptr++;
} while (IsInsideGlyph(*ptr));
return ptr - text;
}
static inline uint32
UTF8PreviousCharLen(const char *text, const char *limit)
{
const char *ptr = text;
if (ptr == NULL || limit == NULL)
return 0;
do {
if (ptr == limit)
break;
ptr--;
} while (IsInsideGlyph(*ptr));
return text - ptr;
}
#endif