?? colorstring.cpp
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#include "stdafx.h"
#include "ColorString.h"
// Copyright (c) 1996-1997, Keith Rule
// You may freely use or modify this code provided this
// copyright is included in all derived versions.
UINT AFX_CDECL CColorStringBkgThread(LPVOID object)
{
CColorString& text = *((CColorString*) object);
long len, count = 0;
CColorArray renderColor; // Hmm - This shouldn't be declared here,
// it causes a leak when the thread is terminated.
// This isn't exactly efficent, but hey it's running in
// the background
for (;;) {
len = text.GetLength();
if (text.CommentPos() < len || text.KeywordPos() < len || text.QuotePos() < len) {
renderColor.SetSize(len);
renderColor.SetColor(text.m_defaultColor, 0, len);
text.CommentPos(0); text.KeywordPos(0); text.QuotePos(0);
if (text.m_color.GetSize() != len) {
text.m_color.SetSize(len);
}
if (!text.ParseKeywords(renderColor)) goto restart;
if (!text.ParseQuotes(renderColor)) goto restart;
if (!text.ParseComments(renderColor)) goto restart;
if (renderColor != text.m_color && len == text.GetLength())
{
text.m_color = renderColor;
text.DoUpdate(count > 0);
}
}
restart:
::Sleep(100);
count++;
}
return 0;
}
CColorString::CColorString(BOOL bUseThread) : CStringEx(),
m_defaultColor(RGB(0, 0, 0)), m_bkgThread(NULL),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(const CString& stringSrc, BOOL bUseThread) : CStringEx( stringSrc ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(const CStringEx& stringSrc, BOOL bUseThread) : CStringEx( stringSrc ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(TCHAR ch, int nRepeat /*= 1*/, BOOL bUseThread) : CStringEx( ch, nRepeat ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(LPCTSTR lpch, int nLength, BOOL bUseThread) : CStringEx( lpch, nLength ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(const unsigned char* psz, BOOL bUseThread) : CStringEx( psz ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(LPCWSTR lpsz, BOOL bUseThread) : CStringEx( lpsz ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::CColorString(LPCSTR lpsz, BOOL bUseThread) : CStringEx( lpsz ), m_bkgThread(NULL),
m_defaultColor(RGB(0, 0, 0)),
m_dQuoteColor(RGB(0, 0, 0)), m_sQuoteColor(RGB(0, 0, 0)), m_updateLevel(0),
CThreadLock(), m_bUseThread(bUseThread), m_kPos(0), m_cPos(0), m_qPos(0)
{
//TRACE("ColorString() - %x File: %s, Line: %d\r\n", this, __FILE__, __LINE__);
}
CColorString::~CColorString()
{
if (m_bkgThread != NULL) {
m_bkgThread->SuspendThread();
delete m_bkgThread;
}
for (int i = 0; i < KeywordHashSize; i++) {
for (int j = 0; j < m_keywordTable[i].GetSize(); j++) {
if (m_keywordTable[i][j] != NULL) delete m_keywordTable[i][j];
}
}
for (i = 0; i < m_comment.GetSize(); i++) {
if (m_comment[i] != NULL) delete m_comment[i];
}
for (i = 0; i < m_quote.GetSize(); i++) {
if (m_quote[i] != NULL) delete m_quote[i];
}
}
void CColorString::AddUpdateTarget(CColorStringUpdate* update)
{
for (int i = 0; i < m_update.GetSize(); i++) {
if (m_update[i] == update) return;
}
m_update.Add(update);
}
BOOL CColorString::AddKeyword(const CString& keyword, COLORREF color /*= RGB(0, 0, 200)*/)
{
CKeywordInfo* pKey = new CKeywordInfo(keyword, color);
if (pKey != NULL) {
m_keywordTable[Hash(keyword)].Add(pKey);
}
return pKey != NULL;
}
BOOL CColorString::AddComment(const CString& begin /*= _T("//")*/, const CString& end /*= _T("\n")*/, COLORREF color /*= RGB(0, 200, 0)*/)
{
CCommentInfo* pComment = new CCommentInfo(begin, end, color);
if (pComment != NULL) {
m_comment.Add(pComment);
}
return pComment != NULL;
}
BOOL CColorString::AddQuote(const CString & begin, const CString & end, COLORREF color)
{
CQuoteInfo* pQuote = new CQuoteInfo(begin, end, color);
if (pQuote != NULL) {
m_quote.Add(pQuote);
}
return pQuote != NULL;
}
void CColorString::SetDefaults(COLORREF color /*= RGB(0, 0, 0)*/, COLORREF sQuoteColor /*= RGB(0, 0,0)*/, COLORREF dQuoteColor /*= RGB(0, 0, 0)*/)
{
m_defaultColor = color;
m_sQuoteColor = sQuoteColor;
m_dQuoteColor = dQuoteColor;
}
COLORREF CColorString::GetColor(long index)
{
COLORREF retval = m_defaultColor;
if (index >= 0 && index < m_color.GetSize()) {
retval = m_color[index];
}
return retval;
}
void CColorString::BeginUpdate(long pos, long len)
{
if (m_updateLevel <= 0) m_updatePos = GetLength();
m_updateLevel++;
}
void CColorString::EndUpdate(long pos, long len) {
m_updateLevel--;
if (pos < m_updatePos) m_updatePos = pos;
if (m_updateLevel == 0) Process(m_updatePos);
return;
}
BOOL IsToken(TCHAR c, BOOL bCharOnly)
{
return !((!bCharOnly && IsWhite(c)) || (bCharOnly && !(IsAlphaNum(c) || c == '#')));
}
long CColorString::GetToken(CString& token, long pos, BOOL bCharOnly)
{
long retval = -1;
TCHAR c;
// Skip whitespace
while (pos < GetLength() && !IsToken(GetAt(pos), bCharOnly)) {
pos++;
}
// Save start position
retval = pos;
// Fill in token
token = _T("");
if (pos < GetLength()) {
for (c = GetAt(pos); IsToken(c, bCharOnly); c = GetAt(++pos)) {
token += c;
if (pos+1 >= GetLength()) break;
}
}
// return start position
return retval;
}
long CColorString::GetComment(const CString& beginToken, const CString& endToken, long& commentLen, long pos)
{
long len = GetLength();
long beginTokenLen = beginToken.GetLength();
long endTokenLen = endToken.GetLength();
commentLen = 0;
if (!beginToken.IsEmpty() && !endToken.IsEmpty()) {
// Skip Whitespace
for (int i = pos; i < len && IsWhite(GetAt(i)); i++)
;
// Find Comment
if (i/*+beginTokenLen*/ < len && Mid(i, beginTokenLen) == beginToken) {
// Find close of comment
for (int j = i+beginTokenLen; j+endTokenLen < len; j++) {
if (Mid(j, endTokenLen) == endToken) {
commentLen = (j+endTokenLen)-i;
return i;
}
}
// Handle case where single line comments goes to EOF
if (j+endTokenLen >= len && endToken == _T("\n")) {
commentLen = len - i;
return i;
}
}
}
return -1;
}
long CColorString::GetQuote(const CString & beginToken, const CString & endToken, long & commentLen, long pos)
{
long len = GetLength();
long beginTokenLen = beginToken.GetLength();
long endTokenLen = endToken.GetLength();
long i = pos;
commentLen = 0;
if (!beginToken.IsEmpty() && !endToken.IsEmpty()) {
// Find Quote
start:
// Skip Whitespace
for (; i < len && IsWhite(GetAt(i)); i++)
;
if (i < len && Mid(i, beginTokenLen) == beginToken) {
// Find close of comment
for (int j = i+beginTokenLen; j+endTokenLen < len; j++) {
if (GetAt(j) == '\n') {
i++;
goto start;
}
if (Mid(j, endTokenLen) == endToken) {
commentLen = (j+endTokenLen)-i;
return i;
}
}
// Handle case where single line comments goes to EOF
if (j+endTokenLen >= len && endToken == _T("\n")) {
commentLen = len - i;
return i;
}
}
}
return -1;
}
CKeywordInfo* CColorString::KeywordLookup(const CString& token)
{
CArray<CKeywordInfo*, CKeywordInfo*>& keywordTable = m_keywordTable[Hash(token)];
long size = keywordTable.GetSize();
for (int i = 0; i < size; i++) {
if (token == keywordTable[i]->Keyword()) {
return keywordTable[i];
}
}
return NULL;
}
long CColorString::Offset2Line(long pos)
{
long prev, cur, i = 1, len = m_lineOffset.GetSize();
if (pos <= 0) return 0;
if (m_lineOffset.GetSize() > 0) {
prev = m_lineOffset[0];
for (i = 1; i < len; i++) {
cur = m_lineOffset[i];
if (pos >= prev && pos < cur) {
return i-1;
}
prev = cur;
}
}
return len-1;
}
void CColorString::Reset(long pos /*= 0*/)
{
ThreadLock();
m_lineOffset.SetSize(0);
m_lineOffset.Add(0);
for (int i = 0; i < GetLength(); i++) {
if (GetAt(i) == '\n') m_lineOffset.Add(i+1);
}
ThreadUnlock();
KeywordPos(0); CommentPos(0); QuotePos(0);
m_color.SetColor(m_defaultColor, pos, GetLength()-pos);
if (!m_bUseThread)
{
ParseKeywords(m_color);
ParseQuotes(m_color);
ParseComments(m_color);
}
}
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