editor.cpp

Linux下的C、C＋＋ IDE

// FILE: editor.cpp

// DESCRIPTION: Implementation for the HideEditor object.
// AUTHOR: James Martin ([e-mail])

#include "editor.h"

#include <qstylesheet.h>
#include <qstringlist.h>
#include <qfileinfo.h>
#include <qmessagebox.h>

#include <cstring>
#include <new>

// Constructor.
HideEditor::HideEditor(QWidget *parent, const char *name)
	: QTextEdit(parent, name)
{
	m_bColorize = false;
	m_keywords = NULL;
	m_slc = m_smlc = m_emlc = "";
	m_SyntaxMgr = NULL;
		
	m_SyntaxMgr = new SyntaxMgr;
	
	if (!m_SyntaxMgr->load())
	{
	 	QMessageBox::warning(this,
	 		"Error",
	 		"Failed to intialize language keywords.");
	}

}

HideEditor::~HideEditor()
{
	if (m_SyntaxMgr)
		delete m_SyntaxMgr;
}

void HideEditor::setFontSize(int fs)
{
	setFont(QFont("Courier", fs));
}

void HideEditor::moveToLine(unsigned line)
{
	setCursorPosition(line-1, 0);
}

void HideEditor::moveToLine(QString tok)
{

}

void HideEditor::render(HideDoc &doc)
{
/*	
	if (initHighlightState(doc.getName()))
	{
		QString html = (QString)
			"<tt><pre>" +
			QStyleSheet::escape(doc.getData()) +
			"</pre></tt><br>";

		setTextFormat(Qt::RichText);
	
		setText(*colorize(&html));

		setTextFormat(Qt::PlainText);
	}
	else
*/
		setText(doc.getData());
}

QString *HideEditor::colorize(QString *data)
{
	QString kw = "";
	int i = 0, kwlen = 0;
	
	for (unsigned kwi=0; kwi < m_keywords->count(); kwi++)
	{
		kw = (*m_keywords)[kwi];
		
		kwlen = kw.length();
			
		i = data->find(kw);
	
		while (i != -1)
		{
	 		data->insert(i, "<font color=\"#bb0000\">");
	 	
	 		i += strlen("<font color=\"#bb0000\">") + kwlen;
	 	
	 		data->insert(i, "</font>");
	 	
	 		i += 7;
	 		
	 		i = data->find(kw, i);
		}
	}
	
	i =  data->find(m_slc);
	
	while (i != -1)
	{
		data->insert(i, "<font color=\"#00aa00\"><i>");
		
		i += strlen("<font color=\"#00aa00\"><i>") + m_slc.length(); 	
	 	i = data->find('\n', i);
	 		
	 	data->insert(i, "</i></font>");
	 	
	 	i += 11;
	 	
	 	i = data->find(m_slc, i);	
	}
	
	return data;
}

void HideEditor::colorize(int line)
{
	QStringList words;
	QString kw = "", slc = "//";
	register int i=0, kwlen=0, start=0, end=0;

	setTextFormat(Qt::RichText);
			
	QString html = QStyleSheet::escape(text());
		
	if (!m_bColorize)
		return;
				
	words += "int";
	words += "inline";
	words += "return";
	words += "#include";
	words += "#include";
	words += "if";
	words += "else";
	words += "#define";
	words += "for";
	
	
	for (; i < line; i++)
		start = html.find('\n', i)+1;
		
	end = html.find('\n', i);
		
	for (unsigned kwi=0; kwi<words.count(); kwi++)
	{
	 	kw 	= words[kwi];
	 	kwlen 	= kw.length();
	 	
	 	i = html.find(kw, start);
	 	
	 	while ((i != -1) && (i < end))
	 	{
	 		html.insert(i, "<font color=\"#bb0000\">");
	 	
	 		i += strlen("<font color=\"#bb0000\">") + kwlen;
	 	
	 		html.insert(i, "</font>");
	 	
	 		i += 7;
	 		
	 		i = html.find(kw, i);
	 	}
	}
	
	
	i =  html.find(slc, start);
	
	while ((i != -1) && (i < end))
	{
		html.insert(i, "<font color=\"#00aa00\"><i>");
		
		i += strlen("<font color=\"#00aa00\"><i>") + slc.length(); 	
	 	i = html.find('\n', i);
	 		
	 	html.insert(i, "</i></font>");
	 	
	 	i += 11;
	 	
	 	i = html.find(slc, i);	
	}
		
	setTextFormat(Qt::PlainText);
	
	setText(html);
}

bool HideEditor::initHighlightState(QString fn)
{
	QFileInfo fi(fn);
	QString x = fi.extension(0);
	
	m_keywords = m_SyntaxMgr->keywords(x);
	
	if (!m_keywords)
	{
		m_bColorize = false;
		
		return false;
	}	
	m_slc 	= m_SyntaxMgr->slc(x);
	m_smlc 	= m_SyntaxMgr->smlc(x);
	m_emlc 	= m_SyntaxMgr->emlc(x);
	
	m_bColorize = true;
	
	return true;
}