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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT_NO_QCOLUMNVIEW
+
+#include "qcolumnviewgrip_p.h"
+#include <qstyleoption.h>
+#include <qpainter.h>
+#include <qbrush.h>
+#include <qevent.h>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+/*
+ \internal
+ class QColumnViewGrip
+
+ QColumnViewGrip is created to go inside QAbstractScrollArea's corner.
+ When the mouse it moved it will resize the scroll area and emit's a signal.
+ */
+
+/*
+ \internal
+ \fn void QColumnViewGrip::gripMoved()
+ Signal that is emitted when the grip moves the parent widget.
+ */
+
+/*!
+ Creates a new QColumnViewGrip with the given \a parent to view a model.
+ Use setModel() to set the model.
+*/
+QColumnViewGrip::QColumnViewGrip(QWidget *parent)
+: QWidget(*new QColumnViewGripPrivate, parent, 0)
+{
+#ifndef QT_NO_CURSOR
+ setCursor(Qt::SplitHCursor);
+#endif
+}
+
+/*!
+ \internal
+*/
+QColumnViewGrip::QColumnViewGrip(QColumnViewGripPrivate & dd, QWidget *parent, Qt::WFlags f)
+: QWidget(dd, parent, f)
+{
+}
+
+/*!
+ Destroys the view.
+*/
+QColumnViewGrip::~QColumnViewGrip()
+{
+}
+
+/*!
+ Attempt to resize the parent object by \a offset
+ returns the amount of offset that it was actually able to resized
+*/
+int QColumnViewGrip::moveGrip(int offset)
+{
+ QWidget *parentWidget = (QWidget*)parent();
+
+ // first resize the parent
+ int oldWidth = parentWidget->width();
+ int newWidth = oldWidth;
+ if (isRightToLeft())
+ newWidth -= offset;
+ else
+ newWidth += offset;
+ newWidth = qMax(parentWidget->minimumWidth(), newWidth);
+ parentWidget->resize(newWidth, parentWidget->height());
+
+ // Then have the view move the widget
+ int realOffset = parentWidget->width() - oldWidth;
+ int oldX = parentWidget->x();
+ if (realOffset != 0)
+ emit gripMoved(realOffset);
+ if (isRightToLeft())
+ realOffset = -1 * (oldX - parentWidget->x());
+ return realOffset;
+}
+
+/*!
+ \reimp
+*/
+void QColumnViewGrip::paintEvent(QPaintEvent *event)
+{
+ QPainter painter(this);
+ QStyleOption opt;
+ opt.initFrom(this);
+ style()->drawControl(QStyle::CE_ColumnViewGrip, &opt, &painter, this);
+ event->accept();
+}
+
+/*!
+ \reimp
+ Resize the parent window to the sizeHint
+*/
+void QColumnViewGrip::mouseDoubleClickEvent(QMouseEvent *event)
+{
+ Q_UNUSED(event);
+ QWidget *parentWidget = (QWidget*)parent();
+ int offset = parentWidget->sizeHint().width() - parentWidget->width();
+ if (isRightToLeft())
+ offset *= -1;
+ moveGrip(offset);
+ event->accept();
+}
+
+/*!
+ \reimp
+ Begin watching for mouse movements
+*/
+void QColumnViewGrip::mousePressEvent(QMouseEvent *event)
+{
+ Q_D(QColumnViewGrip);
+ d->originalXLocation = event->globalX();
+ event->accept();
+}
+
+/*!
+ \reimp
+ Calculate the movement of the grip and moveGrip() and emit gripMoved
+*/
+void QColumnViewGrip::mouseMoveEvent(QMouseEvent *event)
+{
+ Q_D(QColumnViewGrip);
+ int offset = event->globalX() - d->originalXLocation;
+ d->originalXLocation = moveGrip(offset) + d->originalXLocation;
+ event->accept();
+}
+
+/*!
+ \reimp
+ Stop watching for mouse movements
+*/
+void QColumnViewGrip::mouseReleaseEvent(QMouseEvent *event)
+{
+ Q_D(QColumnViewGrip);
+ d->originalXLocation = -1;
+ event->accept();
+}
+
+/*
+ * private object implementation
+ */
+QColumnViewGripPrivate::QColumnViewGripPrivate()
+: QWidgetPrivate(),
+originalXLocation(-1)
+{
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_QCOLUMNVIEW