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/**
* This file is part of the KDE project
* Copyright (C) 2007 Rafael Fernández López <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KLISTVIEW_P_H
#define KLISTVIEW_P_H
class KSortFilterProxyModel;
/**
* @internal
*/
class KListView::Private
{
public:
Private(KListView *listView);
~Private();
// Methods
/**
* Returns the list of items that intersects with @p rect
*/
const QModelIndexList &intersectionSet(const QRect &rect);
/**
* Gets the item rect in the viewport for @p index
*/
QRect visualRectInViewport(const QModelIndex &index) const;
/**
* Returns the category rect in the viewport for @p category
*/
QRect visualCategoryRectInViewport(const QString &category) const;
/**
* Caches and returns the rect that corresponds to @p index
*/
const QRect &cacheIndex(const QModelIndex &index);
/**
* Caches and returns the rect that corresponds to @p category
*/
const QRect &cacheCategory(const QString &category);
/**
* Returns the rect that corresponds to @p index
* @note If the rect is not cached, it becomes cached
*/
const QRect &cachedRectIndex(const QModelIndex &index);
/**
* Returns the rect that corresponds to @p category
* @note If the rect is not cached, it becomes cached
*/
const QRect &cachedRectCategory(const QString &category);
/**
* Returns the visual rect (taking in count x and y offsets) for @p index
* @note If the rect is not cached, it becomes cached
*/
QRect visualRect(const QModelIndex &index);
/**
* Returns the visual rect (taking in count x and y offsets) for @p category
* @note If the rect is not cached, it becomes cached
*/
QRect categoryVisualRect(const QString &category);
/**
* This method will draw a new category with name @p category on the rect
* specified by @p option.rect, with painter @p painter
*/
void drawNewCategory(const QString &category,
const QStyleOption &option,
QPainter *painter);
/**
* This method will update scrollbars ranges. Called when our model changes
* or when the view is resized
*/
void updateScrollbars();
/**
* This method will draw dragged items
*/
void drawDraggedItems(QPainter *painter);
// Attributes
struct ElementInfo
{
QString category;
int relativeOffsetToCategory;
};
// Basic data
KListView *listView;
KItemCategorizer *itemCategorizer;
// Behavior data
bool mouseButtonPressed;
bool isDragging;
bool dragLeftViewport;
QModelIndex hovered;
QPoint initialPressPosition;
QPoint mousePosition;
QItemSelection lastSelection;
// Cache data
// We cannot merge some of them into structs because it would affect
// performance
QHash<QModelIndex, struct ElementInfo> elementsInfo; // in source model
QHash<QModelIndex, QRect> elementsPosition; // in source model
QHash<QModelIndex, QModelIndex> elementDictionary; // mapped indexes
QHash<QString, QModelIndexList> categoriesIndexes;
QHash<QString, QRect> categoriesPosition;
QStringList categories;
QModelIndexList intersectedIndexes;
// Attributes for speed reasons
KSortFilterProxyModel *proxyModel;
QModelIndexList sourceModelIndexList; // in source model
QModelIndex lastIndex;
};
#endif // KLISTVIEW_P_H
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