watchhandler.h 7.02 KB
Newer Older
con's avatar
con committed
1
2
3
4
5
6
7
8
/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
9
10
11
**
** Non-Open Source Usage
**
con's avatar
con committed
12
13
14
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
15
16
17
18
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
con's avatar
con committed
19
20
21
22
23
24
25
26
27
28
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
29
30
31
32
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
hjk's avatar
hjk committed
33

con's avatar
con committed
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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
#ifndef DEBUGGER_WATCHHANDLER_H
#define DEBUGGER_WATCHHANDLER_H

#include <QtCore/QPointer>
#include <QtCore/QObject>
#include <QtCore/QHash>
#include <QtCore/QSet>
#include <QtGui/QStandardItem>
#include <QtGui/QStandardItemModel>
#include <QtGui/QTreeView>
#include <QtScript/QScriptValue>

namespace Debugger {
namespace Internal {

class WatchData
{
public:
    WatchData();

    enum State
    {
        Complete = 0,
        ChildCountNeeded = 1,
        ValueNeeded = 2,
        TypeNeeded = 4,
        ChildrenNeeded = 8,

        NeededMask = ValueNeeded
            | TypeNeeded
            | ChildrenNeeded
            | ChildCountNeeded,

        InitialState = ValueNeeded
            | TypeNeeded
            | ChildrenNeeded
            | ChildCountNeeded
    };

    void setValue(const QByteArray &);
    void setType(const QString &);
    void setValueToolTip(const QString &);
    void setError(const QString &);
    void setAddress(const QString &address);

    bool isSomethingNeeded() const { return state & NeededMask; }
    void setAllNeeded() { state = NeededMask; }
    void setAllUnneeded() { state = State(0); }

    bool isTypeNeeded() const { return state & TypeNeeded; }
    bool isTypeKnown() const { return !(state & TypeNeeded); }
    void setTypeNeeded() { state = State(state | TypeNeeded); }
    void setTypeUnneeded() { state = State(state & ~TypeNeeded); }

    bool isValueNeeded() const { return state & ValueNeeded; }
    bool isValueKnown() const { return !(state & ValueNeeded); }
    void setValueNeeded() { state = State(state | ValueNeeded); }
    void setValueUnneeded() { state = State(state & ~ValueNeeded); }

    bool isChildrenNeeded() const { return state & ChildrenNeeded; }
    bool isChildrenKnown() const { return !(state & ChildrenNeeded); }
    void setChildrenNeeded() { state = State(state | ChildrenNeeded); }
    void setChildrenUnneeded() { state = State(state & ~ChildrenNeeded); }

    bool isChildCountNeeded() const { return state & ChildCountNeeded; }
    bool isChildCountKnown() const { return !(state & ChildCountNeeded); }
    void setChildCountNeeded() { state = State(state | ChildCountNeeded); }
    void setChildCountUnneeded() { state = State(state & ~ChildCountNeeded); }
    void setChildCount(int n) { childCount = n; setChildCountUnneeded();
        if (n == 0) setChildrenUnneeded(); }

    QString toString() const;
    bool isLocal() const { return iname.startsWith(QLatin1String("local.")); }
    bool isWatcher() const { return iname.startsWith(QLatin1String("watch.")); };
    bool isValid() const { return !iname.isEmpty(); }

public:
    QString iname;        // internal name sth like 'local.baz.public.a'
    QString exp;          // the expression
    QString name;         // displayed name
    QString value;        // displayed value
    QByteArray editvalue; // displayed value
    QString valuetooltip; // tooltip in value column
    QString type;         // displayed type
    QString variable;     // name of internal Gdb variable if created
    QString addr;         // displayed adress
    QString framekey;     // key for type cache
    QScriptValue scriptValue; // if needed...
    int childCount;
    bool valuedisabled;   // value will be greyed out

private:

public:
    int state;

    // Model
    int parentIndex;
    int row;
    int level;
    QList<int> childIndex;
    bool changed;
};

enum { INameRole = Qt::UserRole, VisualRole };


class WatchHandler : public QAbstractItemModel
{
    Q_OBJECT

public:
    WatchHandler();
    QAbstractItemModel *model() { return this; }

    //
    //  QAbstractItemModel
    //
    bool setData(const QModelIndex &index, const QVariant &value, int role);
    QVariant data(const QModelIndex &index, int role) const;
    QModelIndex index(int, int, const QModelIndex &idx) const;
    QModelIndex parent(const QModelIndex &idx) const;
    int rowCount(const QModelIndex &idx) const;
    int columnCount(const QModelIndex &idx) const;
    bool hasChildren(const QModelIndex &idx) const;
    Qt::ItemFlags flags(const QModelIndex &idx) const;
    QVariant headerData(int section, Qt::Orientation orientation,
        int role = Qt::DisplayRole) const;
    bool checkIndex(int id) const;
    
//public slots:
    void cleanup();
    void watchExpression(const QString &exp);
    void removeWatchExpression(const QString &exp);
    void reinitializeWatchers();

    void collapseChildren(const QModelIndex &idx);
    void expandChildren(const QModelIndex &idx);

    void rebuildModel(); // unconditionally version of above
    void showEditValue(const WatchData &data);

    bool isDisplayedIName(const QString &iname) const
        { return m_displayedINames.contains(iname); }
    bool isExpandedIName(const QString &iname) const
        { return m_expandedINames.contains(iname); }

    void insertData(const WatchData &data);
    QList<WatchData> takeCurrentIncompletes();

    bool canFetchMore(const QModelIndex &parent) const;
    void fetchMore(const QModelIndex &parent);

    WatchData *findData(const QString &iname);

signals:
    void watchModelUpdateRequested();

private:
    WatchData takeData(const QString &iname);
    QString toString() const;

    bool m_expandPointers;
    bool m_inChange;

    typedef QMap<QString, QPointer<QWidget> > EditWindows;
    EditWindows m_editWindows;

    QList<WatchData> m_incompleteSet;
    QList<WatchData> m_completeSet;
    QList<WatchData> m_oldSet;
    QList<WatchData> m_displaySet;

    void setDisplayedIName(const QString &iname, bool on);
    QSet<QString> m_expandedINames;  // those expanded in the treeview
    QSet<QString> m_displayedINames; // those with "external" viewers

    bool m_inFetchMore;
};

} // namespace Internal
} // namespace Debugger

Q_DECLARE_METATYPE(Debugger::Internal::WatchData);

#endif // DEBUGGER_WATCHHANDLER_H