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Add the HTML Editor !

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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2081 bfdf4180-ca20-0410-9c96-a3a8aa849046
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cfdev
2013-04-01 13:49:34 +00:00
parent 1a2d82186b
commit b10c83f8fe
46 changed files with 2472 additions and 6 deletions
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269
sources/htmleditor/highlighter.cpp Normal file
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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Graphics Dojo project on Qt Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include "highlighter.h"
#include <QtGui>
Highlighter::Highlighter(QTextDocument *document)
: QSyntaxHighlighter(document)
{
m_colors[DocType] = QColor(192, 192, 192);
m_colors[Entity] = QColor(128, 128, 128);
m_colors[Tag] = QColor(136, 18, 128);
m_colors[Comment] = QColor( 35, 110, 37);
m_colors[AttributeName] = QColor(153, 69, 0);
m_colors[AttributeValue] = QColor( 36, 36, 170);
}
void Highlighter::highlightBlock(const QString &text)
{
int state = previousBlockState();
int len = text.length();
int start = 0;
int pos = 0;
while (pos < len) {
switch (state) {
case State_Text:
default:
while (pos < len) {
QChar ch = text.at(pos);
if (ch == '<') {
if (text.mid(pos, 4) == "<!--") {
state = State_Comment;
} else {
if (text.mid(pos, 9).toUpper() == "<!DOCTYPE")
state = State_DocType;
else
state = State_TagStart;
}
break;
} else if (ch == '&') {
start = pos;
while (pos < len
&& text.at(pos++) != ';')
;
setFormat(start, pos - start, m_colors[Entity]);
} else {
++pos;
}
}
break;
case State_Comment:
start = pos;
while (pos < len) {
if (text.mid(pos, 3) == "-->") {
pos += 3;
state = State_Text;
break;
} else {
++pos;
}
}
setFormat(start, pos - start, m_colors[Comment]);
break;
case State_DocType:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '>') {
state = State_Text;
break;
}
}
setFormat(start, pos - start, m_colors[DocType]);
break;
// at '<' in e.g. "<span>foo</span>"
case State_TagStart:
start = pos + 1;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '>') {
state = State_Text;
break;
}
if (!ch.isSpace()) {
--pos;
state = State_TagName;
break;
}
}
break;
// at 'b' in e.g "<blockquote>foo</blockquote>"
case State_TagName:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch.isSpace()) {
--pos;
state = State_InsideTag;
break;
}
if (ch == '>') {
state = State_Text;
break;
}
}
setFormat(start, pos - start, m_colors[Tag]);
break;
// anywhere after tag name and before tag closing ('>')
case State_InsideTag:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '/')
continue;
if (ch == '>') {
state = State_Text;
break;
}
if (!ch.isSpace()) {
--pos;
state = State_AttributeName;
break;
}
}
break;
// at 's' in e.g. <img src=bla.png/>
case State_AttributeName:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '=') {
state = State_AttributeValue;
break;
}
if (ch == '>' || ch == '/') {
state = State_InsideTag;
break;
}
}
setFormat(start, pos - start, m_colors[AttributeName]);
break;
// after '=' in e.g. <img src=bla.png/>
case State_AttributeValue:
start = pos;
// find first non-space character
while (pos < len) {
QChar ch = text.at(pos);
++pos;
// handle opening single quote
if (ch == '\'') {
state = State_SingleQuote;
break;
}
// handle opening double quote
if (ch == '"') {
state = State_DoubleQuote;
break;
}
if (!ch.isSpace())
break;
}
if (state == State_AttributeValue) {
// attribute value without quote
// just stop at non-space or tag delimiter
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
if (ch.isSpace())
break;
if (ch == '>' || ch == '/')
break;
++pos;
}
state = State_InsideTag;
setFormat(start, pos - start, m_colors[AttributeValue]);
}
break;
// after the opening single quote in an attribute value
case State_SingleQuote:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '\'')
break;
}
state = State_InsideTag;
setFormat(start, pos - start, m_colors[AttributeValue]);
break;
// after the opening double quote in an attribute value
case State_DoubleQuote:
start = pos;
while (pos < len) {
QChar ch = text.at(pos);
++pos;
if (ch == '"')
break;
}
state = State_InsideTag;
setFormat(start, pos - start, m_colors[AttributeValue]);
break;
}
}
setCurrentBlockState(state);
}