scintillaeditview.cpp

一个类似于写字板的程序

{
	char title[10];
	char nb_str[4];
	strcat(strcpy(title, UNTITLED_STR), _itoa(nb, nb_str, 10));

	// get the doc pointer attached (by default) on the view Scintilla
	Document doc = execute(SCI_GETDOCPOINTER, 0, 0);

	// create the entry for our list
	_buffers.push_back(Buffer(doc, title));

	// set current index to 0
	_currentIndex = 0;

	return _buffers[_currentIndex]._fullPathName;
}


int ScintillaEditView::findDocIndexByName(const char *fn) const
{
	int index = -1;
	for (int i = 0 ; i < int(_buffers.size()) ; i++)
	{
		if (!strcmp(_buffers[i]._fullPathName, fn))
		{
			index = i;
			break;
		}
	}
	return index;
}

//! \brief this method activates the doc and the corresponding sub tab
//! \brief return the index of previeus current doc
char * ScintillaEditView::activateDocAt(int index)
{
	// before activating another document, we get the current position
	// from the Scintilla view then save it to the current document
	saveCurrentPos();
	Position & prevDocPos = _buffers[_currentIndex]._pos;

	// increase current doc ref count to 2 
	execute(SCI_ADDREFDOCUMENT, 0, _buffers[_currentIndex]._doc);

	// change the doc, this operation will decrease 
	// the ref count of old current doc to 1
	execute(SCI_SETDOCPOINTER, 0, _buffers[index]._doc);
	
	// reset all for another doc
	//execute(SCI_CLEARDOCUMENTSTYLE);
    //bool isDocTypeDiff = (_buffers[_currentIndex]._lang != _buffers[index]._lang);
	_currentIndex = index;
	
    //if (isDocTypeDiff)
    defineDocType(_buffers[_currentIndex]._lang);

	restoreCurrentPos(prevDocPos);

	execute(SCI_SETEOLMODE, _buffers[_currentIndex]._format);

    //execute(SCI_SETEOLMODE, _buffers[_currentIndex]._format);
	
    return _buffers[_currentIndex]._fullPathName;
}

// this method creates a new doc ,and adds it into 
// the end of the doc list and a last sub tab, then activate it
// it returns the name of this created doc (that's the current doc also)
char * ScintillaEditView::createNewDoc(const char *fn)
{
	Document newDoc = execute(SCI_CREATEDOCUMENT);
	_buffers.push_back(Buffer(newDoc, fn));
	_buffers[_buffers.size()-1].checkIfReadOnlyFile();
	return activateDocAt(int(_buffers.size())-1);
}

char * ScintillaEditView::createNewDoc(int nbNew)
{
	char title[10];
	char nb[4];
	strcat(strcpy(title, UNTITLED_STR), _itoa(nbNew, nb, 10));
	return createNewDoc(title);
}

// return the index to close then (argument) the index to activate
int ScintillaEditView::closeCurrentDoc(int & i2Activate)
{
	int oldCurrent = _currentIndex;

    Position & prevDocPos = _buffers[_currentIndex]._pos;

	// if the file 2 delete is the last one
	if (_currentIndex == int(_buffers.size()) - 1)
    {
		// if current index is 0, ie. the current is the only one
		if (!_currentIndex)
		{
			_currentIndex = 0;
		}
		// the current is NOT the only one and it is the last one,
		// we set it to the index which precedes it
		else
			_currentIndex -= 1;
    }
	// else the next current index will be the same,
	// we do nothing

	// get the iterator and calculate its position with the old current index value
	buf_vec_t::iterator posIt = _buffers.begin() + oldCurrent;

	// erase the position given document from our list
	_buffers.erase(posIt);

	// set another document, so the ref count of old active document owned
	// by Scintilla view will be decreased to 0 by SCI_SETDOCPOINTER message
	execute(SCI_SETDOCPOINTER, 0, _buffers[_currentIndex]._doc);

	defineDocType(_buffers[_currentIndex]._lang);
	restoreCurrentPos(prevDocPos);
	
    i2Activate = _currentIndex;
	
	return oldCurrent;
}

void ScintillaEditView::closeDocAt(int i2Close)
{
    execute(SCI_RELEASEDOCUMENT, 0, _buffers[i2Close]._doc);

	// get the iterator and calculate its position with the old current index value
	buf_vec_t::iterator posIt = _buffers.begin() + i2Close;

	// erase the position given document from our list
	_buffers.erase(posIt);

    _currentIndex -= (i2Close < _currentIndex)?1:0;
}

void ScintillaEditView::removeAllUnusedDocs()
{
	// unreference all docs  from list of Scintilla
	// by sending SCI_RELEASEDOCUMENT message
	for (int i = 0 ; i < int(_buffers.size()) ; i++)
		if (i != _currentIndex)
			execute(SCI_RELEASEDOCUMENT, 0, _buffers[i]._doc);
	
	// remove all docs except the current doc from list
	_buffers.clear();
}

void ScintillaEditView::getText(char *dest, int start, int end) 
{
	TextRange tr;
	tr.chrg.cpMin = start;
	tr.chrg.cpMax = end;
	tr.lpstrText = dest;
	execute(SCI_GETTEXTRANGE, 0, reinterpret_cast<LPARAM>(&tr));
}

void ScintillaEditView::marginClick(int position, int modifiers)
{
	int lineClick = int(execute(SCI_LINEFROMPOSITION, position, 0));
	int levelClick = int(execute(SCI_GETFOLDLEVEL, lineClick, 0));
	if (levelClick & SC_FOLDLEVELHEADERFLAG)
    {
		if (modifiers & SCMOD_SHIFT)
        {
			// Ensure all children visible
			execute(SCI_SETFOLDEXPANDED, lineClick, 1);
			expand(lineClick, true, true, 100, levelClick);
		}
        else if (modifiers & SCMOD_CTRL) 
        {
			if (execute(SCI_GETFOLDEXPANDED, lineClick, 0)) 
            {
				// Contract this line and all children
				execute(SCI_SETFOLDEXPANDED, lineClick, 0);
				expand(lineClick, false, true, 0, levelClick);
			} 
            else 
            {
				// Expand this line and all children
				execute(SCI_SETFOLDEXPANDED, lineClick, 1);
				expand(lineClick, true, true, 100, levelClick);
			}
		} 
        else 
        {
			// Toggle this line
			execute(SCI_TOGGLEFOLD, lineClick, 0);
		}
	}
}

void ScintillaEditView::expand(int &line, bool doExpand, bool force, int visLevels, int level)
{
	int lineMaxSubord = int(execute(SCI_GETLASTCHILD, line, level & SC_FOLDLEVELNUMBERMASK));
	line++;
	while (line <= lineMaxSubord)
    {
		if (force) 
        {
			if (visLevels > 0)
				execute(SCI_SHOWLINES, line, line);
			else
				execute(SCI_HIDELINES, line, line);
		} 
        else 
        {
			if (doExpand)
				execute(SCI_SHOWLINES, line, line);
		}
		int levelLine = level;
		if (levelLine == -1)
			levelLine = int(execute(SCI_GETFOLDLEVEL, line, 0));
		if (levelLine & SC_FOLDLEVELHEADERFLAG)
        {
			if (force) 
            {
				if (visLevels > 1)
					execute(SCI_SETFOLDEXPANDED, line, 1);
				else
					execute(SCI_SETFOLDEXPANDED, line, 0);
				expand(line, doExpand, force, visLevels - 1);
			} 
            else
            {
				if (doExpand)
                {
					if (!execute(SCI_GETFOLDEXPANDED, line, 0))
						execute(SCI_SETFOLDEXPANDED, line, 1);

					expand(line, true, force, visLevels - 1);
				} 
                else 
                {
					expand(line, false, force, visLevels - 1);
				}
			}
		}
        else
        {
			line++;
		}
	}
}

void ScintillaEditView::makeStyle(const char *lexerName)
{
	LexerStyler *pStyler = (_pParameter->getLStylerArray()).getLexerStylerByName(lexerName);
	if (pStyler)
	{
		for (int i = 0 ; i < pStyler->getNbStyler() ; i++)
		{
			Style & style = pStyler->getStyler(i);
			setStyle(style._styleID, style._fgColor, style._bgColor, style._fontName, style._fontStyle, style._fontSize);
		}
	}
}

void ScintillaEditView::performGlobalStyles() 
{
	StyleArray & stylers = _pParameter->getMiscStylerArray();

	int i = stylers.getStylerIndexByName("Current line background colour");
	if (i != -1)
	{
		Style & style = stylers.getStyler(i);
		execute(SCI_SETCARETLINEBACK, style._bgColor);
	}

	i = stylers.getStylerIndexByName("Mark colour");
	if (i != -1)
	{
		Style & style = stylers.getStyler(i);
		execute(SCI_MARKERSETFORE, 1, style._fgColor);
		execute(SCI_MARKERSETBACK, 1, style._bgColor);
	}

//    COLORREF selectColorFore = yellow;
    COLORREF selectColorBack = grey;

	i = stylers.getStylerIndexByName("Selected text colour");
	if (i != -1)
    {
        Style & style = stylers.getStyler(i);
		selectColorBack = style._bgColor;
		execute(SCI_SETSELBACK, 1, selectColorBack);
    }

    COLORREF caretColor = black;
	i = stylers.getStylerIndexByID(SCI_SETCARETFORE);
	if (i != -1)
    {
        Style & style = stylers.getStyler(i);
        caretColor = style._fgColor;
    }
    execute(SCI_SETCARETFORE, caretColor);
}

void ScintillaEditView::setLineIndent(int line, int indent) const {
	if (indent < 0)
		return;
	CharacterRange crange = getSelection();
	int posBefore = execute(SCI_GETLINEINDENTPOSITION, line);
	execute(SCI_SETLINEINDENTATION, line, indent);
	int posAfter = execute(SCI_GETLINEINDENTPOSITION, line);
	int posDifference = posAfter - posBefore;
	if (posAfter > posBefore) {
		// Move selection on
		if (crange.cpMin >= posBefore) {
			crange.cpMin += posDifference;
		}
		if (crange.cpMax >= posBefore) {
			crange.cpMax += posDifference;
		}
	} else if (posAfter < posBefore) {
		// Move selection back
		if (crange.cpMin >= posAfter) {
			if (crange.cpMin >= posBefore)
				crange.cpMin += posDifference;
			else
				crange.cpMin = posAfter;
		}
		if (crange.cpMax >= posAfter) {
			if (crange.cpMax >= posBefore)
				crange.cpMax += posDifference;
			else
				crange.cpMax = posAfter;
		}
	}
	execute(SCI_SETSEL, crange.cpMin, crange.cpMax);
}