txtattrb.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: txtattrb.cpp,v 1.1.2.1 2004/07/09 01:50:20 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
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 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
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 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */

/////////////////////////////////////////////////////////////////////////////
//
//  TXTATTRB.CPP
//
//  TextAttributes class implementation.
//
//	A class TextAttributes object holds the text to	be rendered's
//	attributes like font color, weight, size, italicized or not,
//	...etc.
//
//  TextAttribStack class implementaion:
//
//	A class TextAttribStack[BOOL|ULONG32] object is a stack of type
//	[BOOL|ULONG32] that always maintains its default value on the bottom
//	of the stack; if a pop() is done when there is only this default
//	value on the stack, the stack top is not reduced and the default
//	value is returned.  For example, "<B>text</B>text2</B>text3" would
//	push the first bold tag so that "text1" is bold, would then pop
//	the bold tag so that "text2" is not bold (default is not bold,
//	on bottom of stack) and then would try to pop again but this would
//	have no effect, leaving the default on the bottom of the stack.
//
//  TextAttributeStacks class implementaion:
//
//	A class TextAttributeStacks object is an array of TextAttrbStack
//	objects that keep track of changes in attributes so that when the
//	scope of a change ends (and that change is "popped" from the stack),
//	the previous value for that attribute can be obtained and used for
//	the next block of text.
//


#include <memory.h> //for memcpy().
#include <stdlib.h>
#include <string.h>

#include <limits.h> //for ULONG_MAX.

#include "hxtypes.h"
#include "rt_types.h" //for _CHAR, RED_GREEN_OR_BLUE, COLORTYPE

#include "rt_string.h"
#include "atotime.h"

#include "parsing.h" //For convertToUpperCase().

#include "fontdefs.h"  //(broke defs out of txtattrb.h)

#include "hxstack.h"

#include "hxslist.h" //for base class CHXSimpleList.

#include "txtattrb.h" //for base class TextAttributes.
#include "txtcntnr.h"
#include "textprsr.h" /*for ..._CONTENT_VERSION_... defines */

#ifdef _WINDOWS
#ifdef _WIN16
#include <windows.h>
#endif /* _WIN16 */
#endif /* _WINDOWS */

#include "hxslist.h"
#include "textline.h"
#include "txtwindw.h"

#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static char HX_THIS_FILE[] = __FILE__;
#endif


#ifdef _CARBON
#pragma old_argmatch on
#endif

void TextAttributes::init()
{
    /*resets to default vals, sets dynamically-allocated buffers to NULL*/
    m_textColor = DEFAULT_TEXT_COLOR;
    m_textBackgroundColor = DEFAULT_TEXT_BGCOLOR;
    m_tickerUpperColor = DEFAULT_TICKER_UPPERCOLOR;
    m_tickerLowerColor = DEFAULT_TICKER_LOWERCOLOR;
    m_fontFaceIndex = DEFAULT_FONT_FACE_INDX;
    //Added this line to handle charsets:
    m_fontCharset = CHARSET__default;
    m_fontPointSize = DEFAULT_FONT_PTSIZE;
    m_isBold = m_isItalicized = m_isUnderlined = m_isStruckOut = FALSE;
    m_isCentered = m_bIsPreFormatted = FALSE;
    m_numNewlinesAtStart = 0L;
    m_isFakeNewLine = FALSE;//new var for crawlrate "lines"
    m_isWordWrapNewLine = FALSE;//new var.
    m_breakSpacingX = m_breakSpacingY = 0L;
    m_isTickerUpperText = TRUE;
    m_blinkRate = DEFAULT_BLINKRATE;
    m_isLit = TRUE;
    m_pHrefBuf = NULL;
    m_hrefBufLen = 0L;
    m_ulTargetOfURL = URL_TARGET_INVALID;

    m_beginTime = m_endTime = m_lastKnownTime = TIME_INVALID;
    m_ulMostRecentTimeTagEndTime = (ULONG32)ULONG_MAX;
    m_lastKnownX = m_lastKnownY = 0L;
    m_xAtTimeZeroUpperLeftCorner = m_yAtTimeZeroUpperLeftCorner = 0L;
    m_xUpperLeftCorner = m_yUpperLeftCorner = m_xExtent = m_yExtent = 0L;
    //added this for indenting text in lists and as requested:
    m_lineIndentAmtInPixels = 0;

    //This is needed for knowing which to put first in the packet header,
    // the <font color=...> tag or the <a...> tag:
    m_ulNumLinkColorOverrides = 0L;
}
	

void TextAttributes::clear_URL()
{
    if(m_pHrefBuf)
    {
	delete [] m_pHrefBuf;
	m_pHrefBuf = NULL;
    }
    m_hrefBufLen=0L;

    m_ulTargetOfURL = URL_TARGET_INVALID;
}



void TextAttributes::setFontFace(ULONG32 ulFntFcIndx)	
{
    m_fontFaceIndex = ulFntFcIndx;
}
void TextAttributes::setFontFace(_CHAR* pFntFc, ULONG32 len,
	ULONG32 ulMajorContentVersion, ULONG32 ulMinorContentVersion)	
{
    m_fontFaceIndex = getFontFaceIndexFromString(pFntFc, len,
	    ulMajorContentVersion, ulMinorContentVersion);
}

//added this function which converts a predefined 
// string into a font index (returning default index if string unrecognized):
ULONG32 getFontFaceIndexFromString(_CHAR* pFntFc, ULONG32 len,
	ULONG32 ulMajorContentVersion, ULONG32 ulMinorContentVersion)
{
    if(!pFntFc  ||  !len)
    {
	return DEFAULT_FONT_FACE_INDX;
    }

    BOOL bActiveContentVersionIncludesKorean = FALSE;
    //XXXEH: docs need updating: version="1.4" or higher must
    // be set in the <window> tag of the rt file in order for
    // Korean to be rendered:
    if(ulMajorContentVersion >
	REAL_TEXT_KOREAN_FONT_HANDLING_CONTENT_MAJOR_VERSION
	||
	(ulMajorContentVersion ==
	REAL_TEXT_KOREAN_FONT_HANDLING_CONTENT_MAJOR_VERSION
	&&
	ulMinorContentVersion >=
	REAL_TEXT_KOREAN_FONT_HANDLING_CONTENT_MINOR_VERSION)
	)
    {
	bActiveContentVersionIncludesKorean = TRUE;
    }

    convertToUpperCase(pFntFc, len);
    if(!stringCompare(
	    TIMES_FONT_FACE_STR, TIMES_FONT_FACE_STRLEN,
	    pFntFc, len)  ||
	    !stringCompare(
	    TIMES_FONT_FACE_STR2, TIMES_FONT_FACE_STR2LEN,
	    pFntFc, len)  )
    {
	return(TIMES_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    COURIERTT_FONT_FACE_STR, COURIERTT_FONT_FACE_STRLEN,
	    pFntFc, len)  ||
	    !stringCompare(
	    COURIERTT_FONT_FACE_STR2, COURIERTT_FONT_FACE_STR2LEN,
	    pFntFc, len)  )
    {
	return(COURIERTT_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    SYSTEM_FONT_FACE_STR, SYSTEM_FONT_FACE_STRLEN,
	    pFntFc, len)  ||
	    !stringCompare(
	    GENEVA_FONT_FACE_STR, GENEVA_FONT_FACE_STRLEN,
	    pFntFc, len)  )
    {
	return(SYSTEM_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    ARIAL_FONT_FACE_STR, ARIAL_FONT_FACE_STRLEN,
	    pFntFc, len)  )
    {
	return(ARIAL_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    HELVETICA_FONT_FACE_STR, HELVETICA_FONT_FACE_STRLEN,
	    pFntFc, len)  )
    {
	return(HELVETICA_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    ARIAL_BLACK_FONT_FACE_STR, ARIAL_BLACK_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return(ARIAL_BLACK_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    ARIAL_NARROW_FONT_FACE_STR, ARIAL_NARROW_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return(ARIAL_NARROW_FONT_FACE_INDX);
    }
    else if(!stringCompare(
	    ARIAL_ROUNDED_MT_BOLD_FONT_FACE_STR,
	    ARIAL_ROUNDED_MT_BOLD_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return(ARIAL_ROUNDED_MT_BOLD_FONT_FACE_INDX);
    }

    else if(!stringCompare(
	    ALGERIAN_FONT_FACE_STR,
	    ALGERIAN_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return ALGERIAN_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    BOOK_ANTIQUA_FONT_FACE_STR,
	    BOOK_ANTIQUA_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return BOOK_ANTIQUA_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    BOOKMAN_OLD_STYLE_FONT_FACE_STR,
	    BOOKMAN_OLD_STYLE_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return BOOKMAN_OLD_STYLE_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    BRAGGADOCIO_FONT_FACE_STR,
	    BRAGGADOCIO_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return BRAGGADOCIO_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    BRITANNIC_BOLD_FONT_FACE_STR,
	    BRITANNIC_BOLD_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return BRITANNIC_BOLD_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    BRUSH_SCRIPT_FONT_FACE_STR,
	    BRUSH_SCRIPT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return BRUSH_SCRIPT_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    CENTURY_GOTHIC_FONT_FACE_STR,
	    CENTURY_GOTHIC_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return CENTURY_GOTHIC_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    CENTURY_SCHOOLBOOK_FONT_FACE_STR,
	    CENTURY_SCHOOLBOOK_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return CENTURY_SCHOOLBOOK_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    COLONNA_MT_FONT_FACE_STR,
	    COLONNA_MT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return COLONNA_MT_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    COMIC_SANS_MS_FONT_FACE_STR,
	    COMIC_SANS_MS_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return COMIC_SANS_MS_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    DESDEMONA_FONT_FACE_STR,
	    DESDEMONA_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return DESDEMONA_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    FOOTLIGHT_MT_LIGHT_FONT_FACE_STR,
	    FOOTLIGHT_MT_LIGHT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return FOOTLIGHT_MT_LIGHT_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    GARAMOND_FONT_FACE_STR,
	    GARAMOND_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return GARAMOND_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    HAETTENSCHWEILER_FONT_FACE_STR,
	    HAETTENSCHWEILER_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return HAETTENSCHWEILER_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    IMPACT_FONT_FACE_STR,
	    IMPACT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return IMPACT_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    KINO_MT_FONT_FACE_STR,
	    KINO_MT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return KINO_MT_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    MATURA_MT_SCRIPT_CAPITALS_FONT_FACE_STR,
	    MATURA_MT_SCRIPT_CAPITALS_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return MATURA_MT_SCRIPT_CAPITALS_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    MODERN_FONT_FACE_STR,
	    MODERN_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return MODERN_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    MS_DIALOG_FONT_FACE_STR,
	    MS_DIALOG_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return MS_DIALOG_FONT_FACE_INDX;
    }
    else if(!stringCompare(
	    MS_DIALOG_LIGHT_FONT_FACE_STR,
	    MS_DIALOG_LIGHT_FONT_FACE_STRLEN,
	    pFntFc, len) )
    {
	return MS_DIALOG_LIGHT_FONT_FACE_INDX;
    }
    else if(!stringCompare(