/*
*
* (C) Copyright IBM Corp. 1998-2007 - All Rights Reserved
*
*/
#ifndef __PLRUNS_H
#define __PLRUNS_H
#include "unicode/utypes.h"
#include "unicode/ubidi.h"
#include "layout/LETypes.h"
#include "layout/loengine.h"
typedef void pl_fontRuns;
typedef void pl_valueRuns;
typedef void pl_localeRuns;
/**
* \file
* \brief C API for run arrays.
*
* This is a technology preview. The API may
* change significantly.
*
*/
/**
* Construct a <code>pl_fontRuns</code> object from pre-existing arrays of fonts
* and limit indices.
*
* @param fonts is the address of an array of pointers to <code>le_font</code> objects. This
* array, and the <code>le_font</code> objects to which it points must remain
* valid until the <code>pl_fontRuns</code> object is closed.
*
* @param limits is the address of an array of limit indices. This array must remain valid until
* the <code>pl_fontRuns</code> object is closed.
*
* @param count is the number of entries in the two arrays.
*
* @internal
*/
U_INTERNAL pl_fontRuns * U_EXPORT2
pl_openFontRuns(const le_font **fonts,
const le_int32 *limits,
le_int32 count);
/**
* Construct an empty <code>pl_fontRuns</code> object. Clients can add font and limit
* indices arrays using the <code>pl_addFontRun</code> routine.
*
* @param initialCapacity is the initial size of the font and limit indices arrays. If
* this value is zero, no arrays will be allocated.
*
* @see pl_addFontRun
*
* @internal
*/
U_INTERNAL pl_fontRuns * U_EXPORT2
pl_openEmptyFontRuns(le_int32 initialCapacity);
/**
* Close the given <code>pl_fontRuns</code> object. Once this
* call returns, the object can no longer be referenced.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_closeFontRuns(pl_fontRuns *fontRuns);
/**
* Get the number of font runs.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
*
* @return the number of entries in the limit indices array.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getFontRunCount(const pl_fontRuns *fontRuns);
/**
* Reset the number of font runs to zero.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_resetFontRuns(pl_fontRuns *fontRuns);
/**
* Get the limit index for the last font run. This is the
* number of characters in the text.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
*
* @return the last limit index.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getFontRunLastLimit(const pl_fontRuns *fontRuns);
/**
* Get the limit index for a particular font run.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
* @param run is the run. This is an index into the limit index array.
*
* @return the limit index for the run, or -1 if <code>run</code> is out of bounds.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getFontRunLimit(const pl_fontRuns *fontRuns,
le_int32 run);
/**
* Get the <code>le_font</code> object assoicated with the given run
* of text. Use <code>pl_getFontRunLimit(run)</code> to get the corresponding
* limit index.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
* @param run is the index into the font and limit indices arrays.
*
* @return the <code>le_font</code> associated with the given text run.
*
* @internal
*/
U_INTERNAL const le_font * U_EXPORT2
pl_getFontRunFont(const pl_fontRuns *fontRuns,
le_int32 run);
/**
* Add a new font run to the given <code>pl_fontRuns</code> object.
*
* If the <code>pl_fontRuns</code> object was not created by calling
* <code>pl_openEmptyFontRuns</code>, this method will return a run index of -1.
*
* @param fontRuns is the <code>pl_fontRuns</code> object.
*
* @param font is the address of the <code>le_font</code> to add. This object must
* remain valid until the <code>pl_fontRuns</code> object is closed.
*
* @param limit is the limit index to add
*
* @return the run index where the font and limit index were stored, or -1 if
* the run cannot be added.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_addFontRun(pl_fontRuns *fontRuns,
const le_font *font,
le_int32 limit);
/**
* Construct a <code>pl_valueRuns</code> object from pre-existing arrays of values
* and limit indices.
*
* @param values is the address of an array of values. This array must remain valid until
the <code>pl_valueRuns</code> object is closed.
*
* @param limits is the address of an array of limit indices. This array must remain valid until
* the <code>pl_valueRuns</code> object is closed.
*
* @param count is the number of entries in the two arrays.
*
* @internal
*/
U_INTERNAL pl_valueRuns * U_EXPORT2
pl_openValueRuns(const le_int32 *values,
const le_int32 *limits,
le_int32 count);
/**
* Construct an empty <code>pl_valueRuns</code> object. Clients can add values and limits
* using the <code>pl_addValueRun</code> routine.
*
* @param initialCapacity is the initial size of the value and limit indices arrays. If
* this value is zero, no arrays will be allocated.
*
* @see pl_addValueRun
*
* @internal
*/
U_INTERNAL pl_valueRuns * U_EXPORT2
pl_openEmptyValueRuns(le_int32 initialCapacity);
/**
* Close the given <code>pl_valueRuns</code> object. Once this
* call returns, the object can no longer be referenced.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_closeValueRuns(pl_valueRuns *valueRuns);
/**
* Get the number of value runs.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
*
* @return the number of value runs.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getValueRunCount(const pl_valueRuns *valueRuns);
/**
* Reset the number of value runs to zero.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_resetValueRuns(pl_valueRuns *valueRuns);
/**
* Get the limit index for the last value run. This is the
* number of characters in the text.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
*
* @return the last limit index.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getValueRunLastLimit(const pl_valueRuns *valueRuns);
/**
* Get the limit index for a particular value run.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
* @param run is the run index.
*
* @return the limit index for the run, or -1 if <code>run</code> is out of bounds.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getValueRunLimit(const pl_valueRuns *valueRuns,
le_int32 run);
/**
* Get the value assoicated with the given run * of text. Use
* <code>pl_getValueRunLimit(run)</code> to get the corresponding
* limit index.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
* @param run is the run index.
*
* @return the value associated with the given text run.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getValueRunValue(const pl_valueRuns *valueRuns,
le_int32 run);
/**
* Add a new font run to the given <code>pl_valueRuns</code> object.
*
* If the <code>pl_valueRuns</code> object was not created by calling
* <code>pl_openEmptyFontRuns</code>, this method will return a run index of -1.
*
* @param valueRuns is the <code>pl_valueRuns</code> object.
*
* @param value is the value to add.
*
* @param limit is the limit index to add
*
* @return the run index where the font and limit index were stored, or -1 if
* the run cannot be added.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_addValueRun(pl_valueRuns *valueRuns,
le_int32 value,
le_int32 limit);
/**
* Construct a <code>pl_localeRuns</code> object from pre-existing arrays of fonts
* and limit indices.
*
* @param locales is the address of an array of pointers to locale name strings. This
* array must remain valid until the <code>pl_localeRuns</code> object is destroyed.
*
* @param limits is the address of an array of limit indices. This array must remain valid until
* the <code>pl_valueRuns</code> object is destroyed.
*
* @param count is the number of entries in the two arrays.
*
* @internal
*/
U_INTERNAL pl_localeRuns * U_EXPORT2
pl_openLocaleRuns(const char **locales,
const le_int32 *limits,
le_int32 count);
/**
* Construct an empty <code>pl_localeRuns</code> object. Clients can add font and limit
* indices arrays using the <code>pl_addFontRun</code> routine.
*
* @param initialCapacity is the initial size of the font and limit indices arrays. If
* this value is zero, no arrays will be allocated.
*
* @see pl_addLocaleRun
*
* @internal
*/
U_INTERNAL pl_localeRuns * U_EXPORT2
pl_openEmptyLocaleRuns(le_int32 initialCapacity);
/**
* Close the given <code>pl_localeRuns</code> object. Once this
* call returns, the object can no longer be referenced.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_closeLocaleRuns(pl_localeRuns *localeRuns);
/**
* Get the number of font runs.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
*
* @return the number of entries in the limit indices array.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getLocaleRunCount(const pl_localeRuns *localeRuns);
/**
* Reset the number of locale runs to zero.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
*
* @internal
*/
U_INTERNAL void U_EXPORT2
pl_resetLocaleRuns(pl_localeRuns *localeRuns);
/**
* Get the limit index for the last font run. This is the
* number of characters in the text.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
*
* @return the last limit index.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getLocaleRunLastLimit(const pl_localeRuns *localeRuns);
/**
* Get the limit index for a particular font run.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
* @param run is the run. This is an index into the limit index array.
*
* @return the limit index for the run, or -1 if <code>run</code> is out of bounds.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_getLocaleRunLimit(const pl_localeRuns *localeRuns,
le_int32 run);
/**
* Get the <code>le_font</code> object assoicated with the given run
* of text. Use <code>pl_getLocaleRunLimit(run)</code> to get the corresponding
* limit index.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
* @param run is the index into the font and limit indices arrays.
*
* @return the <code>le_font</code> associated with the given text run.
*
* @internal
*/
U_INTERNAL const char * U_EXPORT2
pl_getLocaleRunLocale(const pl_localeRuns *localeRuns,
le_int32 run);
/**
* Add a new run to the given <code>pl_localeRuns</code> object.
*
* If the <code>pl_localeRuns</code> object was not created by calling
* <code>pl_openEmptyLocaleRuns</code>, this method will return a run index of -1.
*
* @param localeRuns is the <code>pl_localeRuns</code> object.
*
* @param locale is the name of the locale to add. This name must
* remain valid until the <code>pl_localeRuns</code> object is closed.
*
* @param limit is the limit index to add
*
* @return the run index where the font and limit index were stored, or -1 if
* the run cannot be added.
*
* @internal
*/
U_INTERNAL le_int32 U_EXPORT2
pl_addLocaleRun(pl_localeRuns *localeRuns,
const char *locale,
le_int32 limit);
#endif