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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QCOLUMNVIEW_P_H
#define QCOLUMNVIEW_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qcolumnview.h"
#ifndef QT_NO_QCOLUMNVIEW
#include <private/qabstractitemview_p.h>
#include <QtCore/qabstractitemmodel.h>
#include <QtCore/qpropertyanimation.h>
#include <QtWidgets/qabstractitemdelegate.h>
#include <QtWidgets/qabstractitemview.h>
#include <QtWidgets/qitemdelegate.h>
#include <qlistview.h>
#include <qevent.h>
#include <qscrollbar.h>
QT_BEGIN_NAMESPACE
class QColumnViewPreviewColumn : public QAbstractItemView {
public:
explicit QColumnViewPreviewColumn(QWidget *parent) : QAbstractItemView(parent), previewWidget(0) {
}
void setPreviewWidget(QWidget *widget) {
previewWidget = widget;
setMinimumWidth(previewWidget->minimumWidth());
}
void resizeEvent(QResizeEvent * event) Q_DECL_OVERRIDE{
if (!previewWidget)
return;
previewWidget->resize(
qMax(previewWidget->minimumWidth(), event->size().width()),
previewWidget->height());
QSize p = viewport()->size();
QSize v = previewWidget->size();
horizontalScrollBar()->setRange(0, v.width() - p.width());
horizontalScrollBar()->setPageStep(p.width());
verticalScrollBar()->setRange(0, v.height() - p.height());
verticalScrollBar()->setPageStep(p.height());
QAbstractScrollArea::resizeEvent(event);
}
QRect visualRect(const QModelIndex &) const Q_DECL_OVERRIDE
{
return QRect();
}
void scrollTo(const QModelIndex &, ScrollHint) Q_DECL_OVERRIDE
{
}
QModelIndex indexAt(const QPoint &) const Q_DECL_OVERRIDE
{
return QModelIndex();
}
QModelIndex moveCursor(CursorAction, Qt::KeyboardModifiers) Q_DECL_OVERRIDE
{
return QModelIndex();
}
int horizontalOffset () const Q_DECL_OVERRIDE {
return 0;
}
int verticalOffset () const Q_DECL_OVERRIDE {
return 0;
}
QRegion visualRegionForSelection(const QItemSelection &) const Q_DECL_OVERRIDE
{
return QRegion();
}
bool isIndexHidden(const QModelIndex &) const Q_DECL_OVERRIDE
{
return false;
}
void setSelection(const QRect &, QItemSelectionModel::SelectionFlags) Q_DECL_OVERRIDE
{
}
private:
QWidget *previewWidget;
};
class Q_AUTOTEST_EXPORT QColumnViewPrivate : public QAbstractItemViewPrivate
{
Q_DECLARE_PUBLIC(QColumnView)
public:
QColumnViewPrivate();
~QColumnViewPrivate();
void initialize();
QAbstractItemView *createColumn(const QModelIndex &index, bool show);
void updateScrollbars();
void closeColumns(const QModelIndex &parent = QModelIndex(), bool build = false);
void doLayout();
void setPreviewWidget(QWidget *widget);
void checkColumnCreation(const QModelIndex &parent);
void _q_gripMoved(int offset);
void _q_changeCurrentColumn();
void _q_clicked(const QModelIndex &index);
void _q_columnsInserted(const QModelIndex &parent, int start, int end) Q_DECL_OVERRIDE;
QList<QAbstractItemView*> columns;
QVector<int> columnSizes; // used during init and corner moving
bool showResizeGrips;
int offset;
#ifndef QT_NO_ANIMATION
QPropertyAnimation currentAnimation;
#endif
QWidget *previewWidget;
QAbstractItemView *previewColumn;
};
/*!
* This is a delegate that will paint the triangle
*/
class QColumnViewDelegate : public QItemDelegate
{
public:
explicit QColumnViewDelegate(QObject *parent = 0) : QItemDelegate(parent) {}
~QColumnViewDelegate() {}
void paint(QPainter *painter,
const QStyleOptionViewItem &option,
const QModelIndex &index) const Q_DECL_OVERRIDE;
};
#endif // QT_NO_QCOLUMNVIEW
QT_END_NAMESPACE
#endif //QCOLUMNVIEW_P_H
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