qtbuttonpropertybrowser.h

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#ifndef QTBUTTONPROPERTYBROWSER_H
#define QTBUTTONPROPERTYBROWSER_H

#include "qtpropertybrowser.h"
#include <QtGui/QLabel>
#include <QtGui/QGridLayout>
#include <QtGui/QToolButton>
#include <QtGui/QWidget>

#if QT_VERSION >= 0x040400
QT_BEGIN_NAMESPACE
#endif

class QtButtonPropertyBrowserPrivate;

class QT_QTPROPERTYBROWSER_EXPORT QtButtonPropertyBrowser : public QtAbstractPropertyBrowser
{
    Q_OBJECT
public:

    QtButtonPropertyBrowser(QWidget *parent = 0);
    ~QtButtonPropertyBrowser();

    void setExpanded(QtBrowserItem *item, bool expanded);
    bool isExpanded(QtBrowserItem *item) const;

Q_SIGNALS:

    void collapsed(QtBrowserItem *item);
    void expanded(QtBrowserItem *item);

protected:
    virtual void itemInserted(QtBrowserItem *item, QtBrowserItem *afterItem);
    virtual void itemRemoved(QtBrowserItem *item);
    virtual void itemChanged(QtBrowserItem *item);

private:

    QtButtonPropertyBrowserPrivate *d_ptr;
    Q_DECLARE_PRIVATE(QtButtonPropertyBrowser)
    Q_DISABLE_COPY(QtButtonPropertyBrowser)
    Q_PRIVATE_SLOT(d_func(), void slotUpdate())
    Q_PRIVATE_SLOT(d_func(), void slotEditorDestroyed())
    Q_PRIVATE_SLOT(d_func(), void slotToggled(bool))

};

class QtButtonPropertyBrowserPrivate
{
    QtButtonPropertyBrowser *q_ptr;
    Q_DECLARE_PUBLIC(QtButtonPropertyBrowser)
public:

    void init(QWidget *parent);

    void propertyInserted(QtBrowserItem *index, QtBrowserItem *afterIndex);
    void propertyRemoved(QtBrowserItem *index);
    void propertyChanged(QtBrowserItem *index);
    QWidget *createEditor(QtProperty *property, QWidget *parent) const
        { return q_ptr->createEditor(property, parent); }

    void slotEditorDestroyed();
    void slotUpdate();
    void slotToggled(bool checked);

    struct WidgetItem
    {
        WidgetItem() : widget(0), label(0), widgetLabel(0),
                button(0), container(0), layout(0), /*line(0), */parent(0), expanded(false) { }
        QWidget *widget; // can be null
        QLabel *label; // main label with property name
        QLabel *widgetLabel; // label substitute showing the current value if there is no widget
        QToolButton *button; // expandable button for items with children
        QWidget *container; // container which is expanded when the button is clicked
        QGridLayout *layout; // layout in container
        WidgetItem *parent;
        QList<WidgetItem *> children;
        bool expanded;
    };
private:
    void updateLater();
    void updateItem(WidgetItem *item);
    void insertRow(QGridLayout *layout, int row) const;
    void removeRow(QGridLayout *layout, int row) const;
    int gridRow(WidgetItem *item) const;
    int gridSpan(WidgetItem *item) const;
    void setExpanded(WidgetItem *item, bool expanded);
    QToolButton *createButton(QWidget *panret = 0) const;

    QMap<QtBrowserItem *, WidgetItem *> m_indexToItem;
    QMap<WidgetItem *, QtBrowserItem *> m_itemToIndex;
    QMap<QWidget *, WidgetItem *> m_widgetToItem;
    QMap<QObject *, WidgetItem *> m_buttonToItem;
    QGridLayout *m_mainLayout;
    QList<WidgetItem *> m_children;
    QList<WidgetItem *> m_recreateQueue;
};

#if QT_VERSION >= 0x040400
QT_END_NAMESPACE
#endif

#endif