navigatortreemodel.h 4.95 KB
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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****************************************************************************/
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#ifndef NAVIGATORTREEMODEL_H
#define NAVIGATORTREEMODEL_H

#include <modelnode.h>
#include <nodemetainfo.h>

#include <QStandardItem>
#include <QStandardItemModel>
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#include <QPointer>
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namespace QmlDesigner {

class Model;
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class AbstractView;
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class ModelNode;

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#ifdef _LOCK_ITEMS_
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    struct ItemRow {
        ItemRow()
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            : idItem(0), lockItem(0), visibilityItem(0) {}
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        ItemRow(QStandardItem *id, QStandardItem *lock, QStandardItem *visibility, const QMap<QString, QStandardItem *> &properties)
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            : idItem(id), lockItem(lock), visibilityItem(visibility), propertyItems(properties) {}
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        QList<QStandardItem*> toList() const {
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            return QList<QStandardItem*>() << idItem << lockItem << visibilityItem;
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        }

        QStandardItem *idItem;
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        QStandardItem *lockItem;
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        QStandardItem *visibilityItem;
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        QMap<QString, QStandardItem *> propertyItems;
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    };
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#else
    struct ItemRow {
        ItemRow()
            : idItem(0), visibilityItem(0) {}
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        ItemRow(QStandardItem *id, QStandardItem *visibility, const QMap<QString, QStandardItem *> &properties)
            : idItem(id), visibilityItem(visibility), propertyItems(properties) {}
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        QList<QStandardItem*> toList() const {
            return QList<QStandardItem*>() << idItem << visibilityItem;
        }

        QStandardItem *idItem;
        QStandardItem *visibilityItem;
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        QMap<QString, QStandardItem *> propertyItems;
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    };
#endif
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class NavigatorTreeModel : public QStandardItemModel
{
    Q_OBJECT

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    enum {
        InternalIdRole = Qt::UserRole
    };
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public:
    NavigatorTreeModel(QObject *parent = 0);
    ~NavigatorTreeModel();

    Qt::DropActions supportedDropActions() const;

    QStringList mimeTypes() const;
    QMimeData *mimeData(const QModelIndexList &indexes) const;
    bool dropMimeData(const QMimeData *data,
                      Qt::DropAction action,
                      int row,
                      int column,
                      const QModelIndex &parent);

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    void setView(AbstractView *view);
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    void clearView();

    QModelIndex indexForNode(const ModelNode &node) const;
    ModelNode nodeForIndex(const QModelIndex &index) const;
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    bool hasNodeForIndex(const QModelIndex &index) const;
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    bool isInTree(const ModelNode &node) const;
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    bool isNodeInvisible(const QModelIndex &index) const;
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    bool isNodeInvisible(const ModelNode &node) const;
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    void addSubTree(const ModelNode &node);
    void removeSubTree(const ModelNode &node);
    void updateItemRow(const ModelNode &node);
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    void updateItemRowOrder(const NodeListProperty &listProperty, const ModelNode &movedNode, int oldIndex);
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    void setId(const QModelIndex &index, const QString &id);
    void setVisible(const QModelIndex &index, bool visible);

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    void openContextMenu(const QPoint &p);
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    ItemRow itemRowForNode(const ModelNode &node);
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    bool blockItemChangedSignal(bool block);
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private slots:
    void handleChangedItem(QStandardItem *item);

private:
    ItemRow createItemRow(const ModelNode &node);
    void updateItemRow(const ModelNode &node, ItemRow row);
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    void handleChangedIdItem(QStandardItem *idItem, ModelNode &modelNode);
    void handleChangedVisibilityItem(QStandardItem *visibilityItem, ModelNode &modelNode);
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    void moveNodesInteractive(NodeAbstractProperty &parentProperty, const QList<ModelNode> &modelNodes, int targetIndex);
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private:
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    QHash<ModelNode, ItemRow> m_nodeItemHash;
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    QPointer<AbstractView> m_view;
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    bool m_blockItemChangedSignal;
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};

} // namespace QmlDesigner

#endif // NAVIGATORTREEMODEL_H