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==Paint QSplitter==

<source lang="cpp">
/****************************************************************************
**
** 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 documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef SPLITTER_H
#define SPLITTER_H
#include <QLinearGradient>
#include <QSplitter>
#include <QSplitterHandle>
class QPaintEvent;

class Splitter : public QSplitter
{
public:
Splitter(Qt::Orientation orientation, QWidget *parent = 0);
protected:
QSplitterHandle *createHandle();
};

class SplitterHandle : public QSplitterHandle
{
public:
SplitterHandle(Qt::Orientation orientation, QSplitter *parent);
protected:
void paintEvent(QPaintEvent *event);
private:
QLinearGradient gradient;
};
#endif

#include <QtGui>
#include "splitter.h"
SplitterHandle::SplitterHandle(Qt::Orientation orientation, QSplitter *parent)
: QSplitterHandle(orientation, parent)
{
gradient.setColorAt(0.0, Qt::darkGreen);
gradient.setColorAt(0.25, Qt::white);
gradient.setColorAt(1.0, Qt::darkGreen);
}

void SplitterHandle::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
if (orientation() == Qt::Horizontal) {
gradient.setStart(rect().left(), rect().height()/2);
gradient.setFinalStop(rect().right(), rect().height()/2);
} else {
gradient.setStart(rect().width()/2, rect().top());
gradient.setFinalStop(rect().width()/2, rect().bottom());
}
painter.fillRect(event->rect(), QBrush(gradient));
}

Splitter::Splitter(Qt::Orientation orientation, QWidget *parent)
: QSplitter(orientation, parent)
{
}

QSplitterHandle *Splitter::createHandle()
{
return new SplitterHandle(orientation(), this);
}

#include <QApplication>
#include <QLabel>
#include "splitter.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
Splitter splitter(Qt::Horizontal);
splitter.addWidget(new QLabel("Hello"));
splitter.addWidget(new QLabel("World"));
Splitter verticalSplitter(Qt::Vertical, &splitter);
verticalSplitter.addWidget(new QLabel("A"));
verticalSplitter.addWidget(new QLabel("B"));
splitter.show();
return app.exec();
}

</source>

==QSplitter, QListView and QTreeView==

<source lang="cpp">
/****************************************************************************
**
** 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 documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
void processSize(int)
{
}
int main()
{
QWidget *parent = 0;

QSplitter *splitter = new QSplitter(parent);
QListView *listview = new QListView;
QTreeView *treeview = new QTreeView;
QTextEdit *textedit = new QTextEdit;
splitter->addWidget(listview);
splitter->addWidget(treeview);
splitter->addWidget(textedit);

{
// SAVE STATE
QSettings settings;
settings.setValue("splitterSizes", splitter->saveState());
}
{
// RESTORE STATE
QSettings settings;
splitter->restoreState(settings.value("splitterSizes").toByteArray());
}

QListIterator<int> it(splitter->sizes());
while (it.hasNext())
processSize(it.next());

return 0;
}

</source>

==Set Stretch Factor for QSplitter==

<source lang="cpp">
#include <QtGui>
int main(int argc, char *argv[]){
QApplication a(argc, argv);
QSplitter s;
QTextEdit *txtEdit = 0;
for (int stretch = 1; stretch <= 5; stretch++) {
txtEdit = new QTextEdit(&s);
s.addWidget(txtEdit);
s.setStretchFactor(s.indexOf(txtEdit), stretch);
}
s.show();
return a.exec();
}

</source>

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в 14:21, 25 мая 2010

Admin: 1 версия: Импорт контента...