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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/***************************************************************************
copyright : (C) 2001-2006 by Robby Stephenson
email : robby@periapsis.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
#ifndef GROUPVIEW_H
#define GROUPVIEW_H
#include "gui/listview.h"
#include "observer.h"
#include <tqdict.h>
#include <tqpixmap.h>
namespace Tellico {
namespace Data {
class EntryGroup;
}
class Filter;
class EntryGroupItem;
class GroupIterator;
/**
* The GroupView shows the entries grouped, as well as the saved filters.
*
* There is one root item for each collection in the document. The entries are grouped
* by the field defined by each collection. A @ref TQDict is used to keep track of the
* group items.
*
* @see Tellico::Data::Collection
*
* @author Robby Stephenson
*/
class GroupView : public GUI::ListView, public Observer {
Q_OBJECT
TQ_OBJECT
public:
/**
* The constructor sets up the single column, and initializes the popup menu.
*
* @param parent A pointer to the parent widget
* @param name The widget name
*/
GroupView(TQWidget* parent, const char* name=0);
/**
* Returns the name of the field by which the entries are grouped
*
* @return The field name
*/
const TQString& groupBy() const { return m_groupBy; }
/**
* Sets the name of the field by which the entries are grouped
*
* @param groupFieldName The field name
*/
void setGroupField(const TQString& groupFieldName);
/**
* Adds a collection, along with all all the groups for the collection in
* the groupFieldribute. This method gets called as well when the groupFieldribute
* is changed, since it essentially repopulates the listview.
*
* @param coll A pointer to the collection being added
*/
void addCollection(Data::CollPtr coll);
/**
* Removes a root collection item, and all of its children.
*
* @param coll A pointer to the collection
*/
void removeCollection(Data::CollPtr coll);
/**
* Selects the first item which refers to a certain entry.
*
* @param entry A pointer to the entry
*/
void setEntrySelected(Data::EntryPtr entry);
/**
* Refresh all the items for the collection.
*
* @return The item for the collection
*/
void populateCollection();
virtual void addField(Data::CollPtr, Data::FieldPtr);
virtual void modifyField(Data::CollPtr coll, Data::FieldPtr oldField, Data::FieldPtr newField);
virtual void removeField(Data::CollPtr, Data::FieldPtr);
public slots:
/**
* Resets the list view, clearing and deleting all items.
*/
void slotReset();
/**
* Adds or removes listview items when groups are modified.
*
* @param coll A pointer to the collection of the gorup
* @param groups A vector of pointers to the modified groups
*/
void slotModifyGroups(Tellico::Data::CollPtr coll, PtrVector<Tellico::Data::EntryGroup> groups);
/**
* Expands all items at a certain depth. If depth is -1, the current selected item
* is expanded. If depth is equal to either 0 or 1, then all items at that depth
* are expanded.
*
* @param depth The depth value
*/
void slotExpandAll(int depth=-1);
/**
* Collapses all items at a certain depth. If depth is -1, the current selected item
* is collapsed. If depth is equal to either 0 or 1, then all items at that depth
* are collapsed.
*
* @param depth The depth value
*/
void slotCollapseAll(int depth=-1);
private:
/**
* Inserts a listviewitem for a given group
*
* @param group The group to be added
* @return A pointer to the created @ ref ParentItem
*/
EntryGroupItem* addGroup(Data::EntryGroup* group);
/**
* Traverse all siblings at a certain depth, setting them open or closed. If depth is -1,
* then the depth of the @ref currentItem() is used.
*
* @param depth Desired depth
* @param open Whether the item should be open or not
*/
void setSiblingsOpen(int depth, bool open);
private slots:
/**
* Handles the appearance of the popup menu, determining which of the three (collection,
* group, or entry) menus to display.
*
* @param item A pointer to the item underneath the mouse
* @param point The location point
* @param col The column number, not currently used
*/
void contextMenuRequested(TQListViewItem* item, const TQPoint& point, int col);
/**
* Handles changing the icon when an item is expanded, depended on whether it refers
* to a collection, a group, or an entry.
*
* @param item A pointer to the expanded list item
*/
void slotExpanded(TQListViewItem* item);
/**
* Handles changing the icon when an item is collapsed, depended on whether it refers
* to a collection, a group, or an entry.
*
* @param item A pointer to the collapse list item
*/
void slotCollapsed(TQListViewItem* item);
/**
* Filter by group
*/
void slotFilterGroup();
signals:
/**
* Signals a desire to filter the view.
*
* @param filter A pointer to the filter
*/
void signalUpdateFilter(Tellico::FilterPtr filter);
private:
friend class GroupIterator;
virtual void setSorting(int column, bool ascending = true);
void resetComparisons();
TQString groupTitle();
void updateHeader(Data::FieldPtr field=0);
bool m_notSortedYet;
Data::CollPtr m_coll;
TQDict<EntryGroupItem> m_groupDict;
TQString m_groupBy;
TQPixmap m_groupOpenPixmap;
TQPixmap m_groupClosedPixmap;
};
} // end namespace
#endif
|
