projectnodes.h 9.25 KB
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/**************************************************************************
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**
** This file is part of Qt Creator
**
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** Copyright (c) 2011 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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** No Commercial Usage
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**
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** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
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**
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** GNU Lesser General Public License Usage
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**
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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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**
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** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#ifndef PROJECTNODES_H
#define PROJECTNODES_H

#include <QtCore/QObject>
#include <QtCore/QStringList>
#include <QtGui/QIcon>

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#include "runconfiguration.h"
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#include "projectexplorer_export.h"

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QT_BEGIN_NAMESPACE
class QFileInfo;
QT_END_NAMESPACE


namespace Core {
    class MimeDatabase;
}

namespace ProjectExplorer {

//
// = Node hierarchy =
//
//  The nodes are arranged in a tree where leaves are FileNodes and non-leaves are FolderNodes
//  A Project is a special Folder that manages the files and normal folders underneath it.
//
//  The Watcher emits signals for structural changes in the hierarchy.
//  A Visitor can be used to traverse all Projects and other Folders.
//

enum NodeType {
    FileNodeType = 1,
    FolderNodeType,
    ProjectNodeType,
    SessionNodeType
};

// File types common for qt projects
enum FileType {
    UnknownFileType = 0,
    HeaderType,
    SourceType,
    FormType,
    ResourceType,
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    QMLType,
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    ProjectFileType,
    FileTypeSize
};

class Node;
class FileNode;
class FileContainerNode;
class FolderNode;
class ProjectNode;
class NodesWatcher;
class NodesVisitor;

class PROJECTEXPLORER_EXPORT Node : public QObject {
    Q_OBJECT
public:
    NodeType nodeType() const;
    ProjectNode *projectNode() const;     // managing project
    FolderNode *parentFolderNode() const; // parent folder or project
    QString path() const;                 // file system path

protected:
    Node(NodeType nodeType, const QString &path);

    void setNodeType(NodeType type);
    void setProjectNode(ProjectNode *project);
    void setParentFolderNode(FolderNode *parentFolder);
    void setPath(const QString &path);

private:
    NodeType m_nodeType;
    ProjectNode *m_projectNode;
    FolderNode *m_folderNode;
    QString m_path;
};

class PROJECTEXPLORER_EXPORT FileNode : public Node {
    Q_OBJECT
public:
    FileNode(const QString &filePath, const FileType fileType, bool generated);

    FileType fileType() const;
    bool isGenerated() const;

private:
    // managed by ProjectNode
    friend class ProjectNode;

    FileType m_fileType;
    bool m_generated;
};

class PROJECTEXPLORER_EXPORT FolderNode : public Node {
    Q_OBJECT
public:
    explicit FolderNode(const QString &folderPath);
    virtual ~FolderNode();

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    QString displayName() const;
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    QIcon icon() const;

    QList<FileNode*> fileNodes() const;
    QList<FolderNode*> subFolderNodes() const;

    virtual void accept(NodesVisitor *visitor);

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    void setDisplayName(const QString &name);
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    void setIcon(const QIcon &icon);

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protected:
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    QList<FolderNode*> m_subFolderNodes;
    QList<FileNode*> m_fileNodes;

private:
    // managed by ProjectNode
    friend class ProjectNode;
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    QString m_displayName;
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    mutable QIcon m_icon;
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};

class PROJECTEXPLORER_EXPORT ProjectNode : public FolderNode
{
    Q_OBJECT

public:
    enum ProjectAction {
        AddSubProject,
        RemoveSubProject,
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        // Let's the user select to which project file
        // the file is added
        AddNewFile,
        AddExistingFile,
        // Removes a file from the project, optionally also
        // delete it on disc
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        RemoveFile,
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        // Deletes a file from the file system, informs the project
        // that a file was deleted
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        // DeleteFile is a define on windows...
        EraseFile,
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        Rename,
        HasSubProjectRunConfigurations
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    };

    // all subFolders that are projects
    QList<ProjectNode*> subProjectNodes() const;

    // determines if the project will be shown in the flat view
    // TODO find a better name
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    void aboutToChangeHasBuildTargets();
    void hasBuildTargetsChanged();
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    virtual bool hasBuildTargets() const = 0;
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    virtual QList<ProjectAction> supportedActions(Node *node) const = 0;
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    virtual bool canAddSubProject(const QString &proFilePath) const = 0;

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    virtual bool addSubProjects(const QStringList &proFilePaths) = 0;

    virtual bool removeSubProjects(const QStringList &proFilePaths) = 0;

    virtual bool addFiles(const FileType fileType,
                          const QStringList &filePaths,
                          QStringList *notAdded = 0) = 0;
    // TODO: Maybe remove fileType, can be detected by project
    virtual bool removeFiles(const FileType fileType,
                             const QStringList &filePaths,
                             QStringList *notRemoved = 0) = 0;
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    virtual bool deleteFiles(const FileType fileType,
                             const QStringList &filePaths) = 0;
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    virtual bool renameFile(const FileType fileType,
                             const QString &filePath,
                             const QString &newFilePath) = 0;
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    // by default returns false
    virtual bool deploysFolder(const QString &folder) const;
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    // TODO node parameter not really needed
    virtual QList<ProjectExplorer::RunConfiguration *> runConfigurationsFor(Node *node) = 0;

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    QList<NodesWatcher*> watchers() const;
    void registerWatcher(NodesWatcher *watcher);
    void unregisterWatcher(NodesWatcher *watcher);

    void accept(NodesVisitor *visitor);

    static bool sortNodesByPath(Node *n1, Node *n2);

protected:
    // this is just the in-memory representation, a subclass
    // will add the persistent stuff
    explicit ProjectNode(const QString &projectFilePath);

    // to be called in implementation of
    // the corresponding public methods
    void addProjectNodes(const QList<ProjectNode*> &subProjects);
    void removeProjectNodes(const QList<ProjectNode*> &subProjects);

    void addFolderNodes(const QList<FolderNode*> &subFolders, FolderNode *parentFolder);
    void removeFolderNodes(const QList<FolderNode*> &subFolders, FolderNode *parentFolder);

    void addFileNodes(const QList<FileNode*> &files, FolderNode *parentFolder);
    void removeFileNodes(const QList<FileNode*> &files, FolderNode *parentFolder);

private slots:
    void watcherDestroyed(QObject *watcher);

private:
    QList<ProjectNode*> m_subProjectNodes;
    QList<NodesWatcher*> m_watchers;

    // let SessionNode call setParentFolderNode
    friend class SessionNode;
};

class PROJECTEXPLORER_EXPORT SessionNode : public FolderNode {
    Q_OBJECT
public:
    SessionNode(const QString &sessionFilePath, QObject *parentObject);

    QList<ProjectNode*> projectNodes() const;

    QList<NodesWatcher*> watchers() const;
    void registerWatcher(NodesWatcher *watcher);
    void unregisterWatcher(NodesWatcher *watcher);

    void accept(NodesVisitor *visitor);

protected:
    void addProjectNodes(const QList<ProjectNode*> &projectNodes);
    void removeProjectNodes(const QList<ProjectNode*> &projectNodes);

private slots:
    void watcherDestroyed(QObject *watcher);

private:
    QList<ProjectNode*> m_projectNodes;
    QList<NodesWatcher*> m_watchers;
};

class PROJECTEXPLORER_EXPORT NodesWatcher : public QObject {
    Q_OBJECT
public:
    explicit NodesWatcher(QObject *parent = 0);

signals:
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    // projects
    void aboutToChangeHasBuildTargets(ProjectExplorer::ProjectNode*);
    void hasBuildTargetsChanged(ProjectExplorer::ProjectNode *node);

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    // folders & projects
    void foldersAboutToBeAdded(FolderNode *parentFolder,
                               const QList<FolderNode*> &newFolders);
    void foldersAdded();

    void foldersAboutToBeRemoved(FolderNode *parentFolder,
                               const QList<FolderNode*> &staleFolders);
    void foldersRemoved();

    // files
    void filesAboutToBeAdded(FolderNode *folder,
                               const QList<FileNode*> &newFiles);
    void filesAdded();

    void filesAboutToBeRemoved(FolderNode *folder,
                               const QList<FileNode*> &staleFiles);
    void filesRemoved();

private:

    // let project & session emit signals
    friend class ProjectNode;
    friend class SessionNode;
};


} // namespace ProjectExplorer

// HACK: THERE SHOULD BE ONE PLACE TO MAKE THE FILE ENDING->FILE TYPE ASSOCIATION
ProjectExplorer::FileType typeForFileName(const Core::MimeDatabase *db, const QFileInfo &file);

#endif // PROJECTNODES_H