Commit 317533b5 authored by Christian Kamm's avatar Christian Kamm
Browse files

Add TextWriter from QML.

parent 81b0f81c
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "textwriter.h"
namespace Utils {
TextWriter::TextWriter()
:string(0), cursor(0)
{
}
static bool overlaps(int posA, int lengthA, int posB, int lengthB) {
return (posA < posB + lengthB && posA + lengthA > posB + lengthB)
|| (posA < posB && posA + lengthA > posB);
}
bool TextWriter::hasOverlap(int pos, int length)
{
{
QListIterator<Replace> i(replaceList);
while (i.hasNext()) {
const Replace &cmd = i.next();
if (overlaps(pos, length, cmd.pos, cmd.length))
return true;
}
}
{
QListIterator<Move> i(moveList);
while (i.hasNext()) {
const Move &cmd = i.next();
if (overlaps(pos, length, cmd.pos, cmd.length))
return true;
}
return false;
}
}
bool TextWriter::hasMoveInto(int pos, int length)
{
QListIterator<Move> i(moveList);
while (i.hasNext()) {
const Move &cmd = i.next();
if (cmd.to >= pos && cmd.to < pos + length)
return true;
}
return false;
}
void TextWriter::replace(int pos, int length, const QString &replacement)
{
Q_ASSERT(!hasOverlap(pos, length));
Q_ASSERT(!hasMoveInto(pos, length));
Replace cmd;
cmd.pos = pos;
cmd.length = length;
cmd.replacement = replacement;
replaceList += cmd;
}
void TextWriter::move(int pos, int length, int to)
{
Q_ASSERT(!hasOverlap(pos, length));
Move cmd;
cmd.pos = pos;
cmd.length = length;
cmd.to = to;
moveList += cmd;
}
void TextWriter::doReplace(const Replace &replace)
{
int diff = replace.replacement.size() - replace.length;
{
QMutableListIterator<Replace> i(replaceList);
while (i.hasNext()) {
Replace &c = i.next();
if (replace.pos < c.pos)
c.pos += diff;
else if (replace.pos + replace.length < c.pos + c.length)
c.length += diff;
}
}
{
QMutableListIterator<Move> i(moveList);
while (i.hasNext()) {
Move &c = i.next();
if (replace.pos < c.pos)
c.pos += diff;
else if (replace.pos + replace.length < c.pos + c.length)
c.length += diff;
if (replace.pos < c.to)
c.to += diff;
}
}
if (string) {
string->replace(replace.pos, replace.length, replace.replacement);
} else if (cursor) {
cursor->setPosition(replace.pos);
cursor->setPosition(replace.pos + replace.length, QTextCursor::KeepAnchor);
cursor->insertText(replace.replacement);
}
}
void TextWriter::doMove(const Move &move)
{
QString text;
if (string) {
text = string->mid(move.pos, move.length);
} else if (cursor) {
cursor->setPosition(move.pos);
cursor->setPosition(move.pos + move.length, QTextCursor::KeepAnchor);
text = cursor->selectedText();
}
Replace cut;
cut.pos = move.pos;
cut.length = move.length;
Replace paste;
paste.pos = move.to;
paste.length = 0;
paste.replacement = text;
replaceList.append(cut);
replaceList.append(paste);
Replace cmd;
while (!replaceList.isEmpty()) {
cmd = replaceList.first();
replaceList.removeFirst();
doReplace(cmd);
}
}
void TextWriter::write(QString *s)
{
string = s;
write_helper();
string = 0;
}
void TextWriter::write(QTextCursor *textCursor)
{
cursor = textCursor;
write_helper();
cursor = 0;
}
void TextWriter::write_helper()
{
if (cursor)
cursor->beginEditBlock();
{
Replace cmd;
while (!replaceList.isEmpty()) {
cmd = replaceList.first();
replaceList.removeFirst();
doReplace(cmd);
}
}
{
Move cmd;
while (!moveList.isEmpty()) {
cmd = moveList.first();
moveList.removeFirst();
doMove(cmd);
}
}
if (cursor)
cursor->endEditBlock();
}
} // end namespace Utils
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef TEXTWRITER_H
#define TEXTWRITER_H
#include "utils_global.h"
#include <QtCore/QString>
#include <QtCore/QList>
#include <QtGui/QTextCursor>
namespace Utils {
class QTCREATOR_UTILS_EXPORT TextWriter
{
QString *string;
QTextCursor *cursor;
struct Replace {
int pos;
int length;
QString replacement;
};
QList<Replace> replaceList;
struct Move {
int pos;
int length;
int to;
};
QList<Move> moveList;
bool hasOverlap(int pos, int length);
bool hasMoveInto(int pos, int length);
void doReplace(const Replace &replace);
void doMove(const Move &move);
void write_helper();
public:
TextWriter();
void replace(int pos, int length, const QString &replacement);
void move(int pos, int length, int to);
void write(QString *s);
void write(QTextCursor *textCursor);
};
} // namespace Utils
#endif // TEXTWRITER_H
......@@ -36,7 +36,8 @@ SOURCES += reloadpromptutils.cpp \
iwelcomepage.cpp \
fancymainwindow.cpp \
detailsbutton.cpp \
detailswidget.cpp
detailswidget.cpp \
textwriter.cpp
win32 {
SOURCES += abstractprocess_win.cpp \
consoleprocess_win.cpp \
......@@ -80,7 +81,8 @@ HEADERS += utils_global.h \
iwelcomepage.h \
fancymainwindow.h \
detailsbutton.h \
detailswidget.h
detailswidget.h \
textwriter.h
FORMS += filewizardpage.ui \
projectintropage.ui \
newclasswidget.ui \
......
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