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/***************************************************************************
* Copyright (C) 2011 by Peter Penz <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#ifndef KFILEITEMLISTVIEW_H
#define KFILEITEMLISTVIEW_H
#include "dolphin_export.h"
#include "kitemviews/kstandarditemlistview.h"
class KFileItemModelRolesUpdater;
class QTimer;
/**
* @brief View that allows to show the content of file-items.
*
* The corresponding model set by the controller must be an instance
* of KFileItemModel. Per default KFileItemListWidget is set as widget creator
* value and KItemListGroupHeader as group-header creator value. Use
* KItemListView::setWidgetCreator() and KItemListView::setGroupHeaderCreator()
* to apply customized generators.
*/
class DOLPHIN_EXPORT KFileItemListView : public KStandardItemListView
{
Q_OBJECT
public:
explicit KFileItemListView(QGraphicsWidget* parent = nullptr);
~KFileItemListView() override;
void setPreviewsShown(bool show);
bool previewsShown() const;
/**
* If enabled a small preview gets upscaled to the icon size in case where
* the icon size is larger than the preview. Per default enlarging is
* enabled.
*/
void setEnlargeSmallPreviews(bool enlarge);
bool enlargeSmallPreviews() const;
/**
* Sets the list of enabled thumbnail plugins that are used for previews.
* Per default all plugins enabled in the KConfigGroup "PreviewSettings"
* are used.
*
* For a list of available plugins, call KServiceTypeTrader::self()->query("ThumbCreator").
*
* @see enabledPlugins
*/
void setEnabledPlugins(const QStringList& list);
/**
* Returns the list of enabled thumbnail plugins.
* @see setEnabledPlugins
*/
QStringList enabledPlugins() const;
QPixmap createDragPixmap(const KItemSet& indexes) const override;
protected:
KItemListWidgetCreatorBase* defaultWidgetCreator() const override;
void initializeItemListWidget(KItemListWidget* item) override;
virtual void onPreviewsShownChanged(bool shown);
void onItemLayoutChanged(ItemLayout current, ItemLayout previous) override;
void onModelChanged(KItemModelBase* current, KItemModelBase* previous) override;
void onScrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous) override;
void onItemSizeChanged(const QSizeF& current, const QSizeF& previous) override;
void onScrollOffsetChanged(qreal current, qreal previous) override;
void onVisibleRolesChanged(const QList<QByteArray>& current, const QList<QByteArray>& previous) override;
void onStyleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous) override;
void onSupportsItemExpandingChanged(bool supportsExpanding) override;
void onTransactionBegin() override;
void onTransactionEnd() override;
void resizeEvent(QGraphicsSceneResizeEvent* event) override;
protected slots:
void slotItemsRemoved(const KItemRangeList& itemRanges) override;
void slotSortRoleChanged(const QByteArray& current, const QByteArray& previous) override;
private slots:
void triggerVisibleIndexRangeUpdate();
void updateVisibleIndexRange();
void triggerIconSizeUpdate();
void updateIconSize();
private:
/**
* Applies the roles defined by KItemListView::visibleRoles() to the
* KFileItemModel and KFileItemModelRolesUpdater. As the model does not
* distinct between visible and invisible roles also internal roles
* are applied that are mandatory for having a working KFileItemModel.
*/
void applyRolesToModel();
/**
* @return Size that is available for the icons. The size might be larger than specified by
* KItemListStyleOption::iconSize: With the IconsLayout also the empty left area left
* and right of an icon will be included.
*/
QSize availableIconSize() const;
private:
KFileItemModelRolesUpdater* m_modelRolesUpdater;
QTimer* m_updateVisibleIndexRangeTimer;
QTimer* m_updateIconSizeTimer;
friend class KFileItemListViewTest; // For unit testing
};
#endif
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