mirror of
https://invent.kde.org/system/dolphin
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95 lines
3.6 KiB
C++
95 lines
3.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#ifndef KITEMLISTHEADER_H
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#define KITEMLISTHEADER_H
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#include <libdolphin_export.h>
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#include <QHash>
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#include <QObject>
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class KItemListHeaderWidget;
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class KItemListView;
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/**
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* @brief Provides access to the header of a KItemListView.
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*
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* Each column of the header represents a visible role
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* accessible by KItemListView::visibleRoles().
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*/
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class LIBDOLPHINPRIVATE_EXPORT KItemListHeader : public QObject
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{
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Q_OBJECT
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public:
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virtual ~KItemListHeader();
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/**
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* If set to true, KItemListView will automatically adjust the
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* widths of the columns. If set to false, the size can be
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* manually adjusted by KItemListHeader::setColumnWidth().
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*/
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void setAutomaticColumnResizing(bool automatic);
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bool automaticColumnResizing() const;
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/**
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* Sets the width of the column for the given role. Note that
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* the width only gets applied if KItemListHeader::automaticColumnResizing()
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* has been turned off.
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*/
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void setColumnWidth(const QByteArray& role, qreal width);
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qreal columnWidth(const QByteArray& role) const;
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/**
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* Sets the widths of the columns for all roles. From a performance point of
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* view calling this method should be preferred over several setColumnWidth()
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* calls in case if the width of more than one column should be changed.
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* Note that the widths only get applied if KItemListHeader::automaticColumnResizing()
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* has been turned off.
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*/
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void setColumnWidths(const QHash<QByteArray, qreal>& columnWidths);
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/**
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* @return The column width that is required to show the role unclipped.
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*/
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qreal preferredColumnWidth(const QByteArray& role) const;
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signals:
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/**
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* Is emitted if the width of a column has been adjusted by the user with the mouse
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* (no signal is emitted if KItemListHeader::setColumnWidth() is invoked).
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*/
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void columnWidthChanged(const QByteArray& role,
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qreal currentWidth,
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qreal previousWidth);
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private:
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KItemListHeader(KItemListView* listView);
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private:
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KItemListView* m_view;
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KItemListHeaderWidget* m_headerWidget;
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friend class KItemListView; // Constructs the KItemListHeader instance
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};
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#endif
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