registerhandler.h 3.03 KB
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/**************************************************************************
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**
** This file is part of Qt Creator
**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**************************************************************************/
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#ifndef DEBUGGER_REGISTERHANDLER_H
#define DEBUGGER_REGISTERHANDLER_H

#include <QtCore/QAbstractTableModel>
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#include <QtCore/QVector>
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namespace Debugger {
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namespace Internal {
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class Register
{
public:
    Register() : changed(true) {}
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    Register(const QByteArray &name_) : name(name_), changed(true) {}

    QVariant editValue() const;
    QString displayValue(int base, int strlen) const;
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public:
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    QByteArray name;
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    /* Value should be an integer for which autodetection by passing
     * base=0 to QString::toULongLong() should work (C-language conventions).
     * Values that cannot be converted (such as 128bit MMX-registers) are
     * passed through. */
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    QString value;
    bool changed;
};

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typedef QVector<Register> Registers;

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class RegisterHandler : public QAbstractTableModel
{
    Q_OBJECT

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

    bool isEmpty() const; // nothing known so far?
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    void setRegisters(const Registers &registers);
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    void setAndMarkRegisters(const Registers &registers);
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    Registers registers() const;
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    Register registerAt(int i) const { return m_registers.at(i); }
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    void removeAll();
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    Q_SLOT void setNumberBase(int base);
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    int numberBase() const { return m_base; }
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private:
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    void calculateWidth();
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    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    QVariant headerData(int section, Qt::Orientation orientation,
        int role = Qt::DisplayRole) const;
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    Qt::ItemFlags flags(const QModelIndex &idx) const;
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    Registers m_registers;
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    int m_base;
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    int m_strlen; // approximate width of a value in chars.
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};

} // namespace Internal
} // namespace Debugger

#endif // DEBUGGER_REGISTERHANDLER_H