1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/**
* 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 KCATEGORIZEDVIEW_P_H
#define KCATEGORIZEDVIEW_P_H
class KCategorizedSortFilterProxyModel;
class KCategoryDrawer;
/**
* @internal
*/
class KCategorizedView::Private
{
public:
Private(KCategorizedView *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 represented by index
* @param index on the rect specified by @p option.rect, with
* painter @p painter
*/
void drawNewCategory(const QModelIndex &index,
int sortRole,
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 in the painting operation
*/
void drawDraggedItems(QPainter *painter);
/**
* This method will determine which rect needs to be updated because of a
* dragging operation
*/
void drawDraggedItems();
void layoutChanged(bool forceItemReload = false);
// Attributes
struct ElementInfo
{
QString category;
int relativeOffsetToCategory;
};
// Basic data
KCategorizedView *listView;
KCategoryDrawer *categoryDrawer;
QSize biggestItemSize;
// Behavior data
bool mouseButtonPressed;
bool rightMouseButtonPressed;
bool isDragging;
bool dragLeftViewport;
QModelIndex hovered;
QString hoveredCategory;
QPoint initialPressPosition;
QPoint mousePosition;
int forcedSelectionPosition;
// Cache data
// We cannot merge some of them into structs because it would affect
// performance
QHash<int, struct ElementInfo> elementsInfo;
QHash<int, QRect> elementsPosition;
QHash<QString, QModelIndexList> categoriesIndexes;
QHash<QString, QRect> categoriesPosition;
QStringList categories;
QModelIndexList intersectedIndexes;
QRect lastDraggedItemsRect;
int modelSortRole;
int modelSortColumn;
int modelLastRowCount;
bool modelCategorized;
Qt::SortOrder modelSortOrder;
QItemSelection lastSelection;
// Attributes for speed reasons
KCategorizedSortFilterProxyModel *proxyModel;
QModelIndexList modelIndexList;
};
#endif // KCATEGORIZEDVIEW_P_H
|
