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+/******************************************************************************
+ *
+ * $Id: $
+ *
+ * Copyright (C) 1997-2012 by Dimitri van Heesch.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation under the terms of the GNU General Public License is hereby 
+ * granted. No representations are made about the suitability of this software 
+ * for any purpose. It is provided "as is" without express or implied warranty.
+ * See the GNU General Public License for more details.
+ *
+ * Documents produced by Doxygen are derivative works derived from the
+ * input used in their production; they are not affected by this license.
+ *
+ */
+
+#ifndef DIRDEF_H
+#define DIRDEF_H
+
+#include "qtbc.h"
+#include "sortdict.h"
+#include "definition.h"
+
+#include <qlist.h>
+
+class FileList;
+class ClassSDict;
+class QStrList;
+class FileDef;
+class OutputList;
+class UsedDir;
+class FTextStream;
+
+class DirDef;
+
+/** A list of directories. */
+class DirList : public QList<DirDef>
+{
+  public:
+   int compareItems(GCI item1,GCI item2);
+};
+
+/** A model of a directory symbol. */
+class DirDef : public Definition
+{
+  public:
+    DirDef(const char *path);
+    virtual ~DirDef();
+
+    // accessors
+    DefType definitionType() const { return TypeDir; }
+    QCString getOutputFileBase() const;
+    QCString anchor() const { return QCString(); }
+    bool isLinkableInProject() const;
+    bool isLinkable() const;
+    QCString displayName(bool=TRUE) const { return m_dispName; }
+    QCString shortName() const { return m_shortName; }
+    void addSubDir(DirDef *subdir);
+    FileList *   getFiles() const        { return m_fileList; }
+    void addFile(FileDef *fd);
+    const DirList &subDirs() const { return m_subdirs; }
+    bool isCluster() const { return m_subdirs.count()>0; }
+    int level() const { return m_level; }
+    DirDef *parent() const { return m_parent; }
+    int dirCount() const { return m_dirCount; }
+    const QDict<UsedDir> *usedDirs() const { return m_usedDirs; }
+    bool isParentOf(DirDef *dir) const;
+    bool depGraphIsTrivial() const;
+
+    // generate output
+    void writeDocumentation(OutputList &ol);
+    void writeDepGraph(FTextStream &t);
+
+    static DirDef *mergeDirectoryInTree(const QCString &path);
+    bool visited;
+    void setDiskName(const QCString &name) { m_diskName = name; }
+
+  private:
+    friend void computeDirDependencies();
+
+    void writeDetailedDescription(OutputList &ol,const QCString &title);
+    void writeBriefDescription(OutputList &ol);
+    void writeDirectoryGraph(OutputList &ol);
+    void writeSubDirList(OutputList &ol);
+    void writeFileList(OutputList &ol);
+    void startMemberDeclarations(OutputList &ol);
+    void endMemberDeclarations(OutputList &ol);
+
+    void setLevel();
+    static DirDef *createNewDir(const char *path);
+    static bool matchPath(const QCString &path,QStrList &l);
+    void addUsesDependency(DirDef *usedDir,FileDef *srcFd,
+                           FileDef *dstFd,bool inherited);
+    void computeDependencies();
+
+    DirList m_subdirs;
+    QCString m_dispName;
+    QCString m_shortName;
+    QCString m_diskName;
+    FileList *m_fileList;                 // list of files in the group
+    int m_dirCount;
+    int m_level;
+    DirDef *m_parent;
+    QDict<UsedDir> *m_usedDirs;
+};
+
+/** Class representing a pair of FileDef objects */
+class FilePair 
+{
+  public:
+    FilePair(FileDef *src,FileDef *dst) : m_src(src), m_dst(dst) {}
+    const FileDef *source() const { return m_src; }
+    const FileDef *destination() const { return m_dst; }
+  private:
+    FileDef *m_src;
+    FileDef *m_dst;
+};
+
+/** A sorted dictionary of FilePair objects. */
+class FilePairDict : public SDict<FilePair>
+{
+  public:
+    FilePairDict(int size) : SDict<FilePair>(size) {}
+    int compareItems(GCI item1,GCI item2);
+};
+
+/** Usage information of a directory. */
+class UsedDir
+{
+  public:
+    UsedDir(DirDef *dir,bool inherited);
+    virtual ~UsedDir();
+    void addFileDep(FileDef *srcFd,FileDef *dstFd);
+    FilePair *findFilePair(const char *name);
+    const FilePairDict &filePairs() const { return m_filePairs; }
+    const DirDef *dir() const { return m_dir; }
+    bool inherited() const { return m_inherited; }
+
+  private:
+    DirDef *m_dir;
+    FilePairDict m_filePairs;
+    bool m_inherited;
+};
+
+/** A usage relation between two directories. */
+class DirRelation
+{
+  public:
+    DirRelation(const QCString &name,DirDef *src,UsedDir *dst) 
+      : m_name(name), m_src(src), m_dst(dst) {}
+    DirDef  *source() const      { return m_src; }
+    UsedDir *destination() const { return m_dst; }
+    void writeDocumentation(OutputList &ol);
+    QCString getOutputFileBase() const { return m_name; }
+
+  private:
+    QCString m_name;
+    DirDef  *m_src;
+    UsedDir *m_dst;
+};
+
+inline int DirList::compareItems(GCI item1,GCI item2)
+{
+  return stricmp(((DirDef *)item1)->shortName(),((DirDef *)item2)->shortName());
+}
+
+/** A sorted dictionary of DirDef objects. */
+class DirSDict : public SDict<DirDef>
+{
+  public:
+    DirSDict(int size) : SDict<DirDef>(size) {}
+    int compareItems(GCI item1,GCI item2)
+    {
+      return stricmp(((DirDef *)item1)->shortName(),((DirDef *)item2)->shortName());
+    }
+};
+
+
+void buildDirectories();
+void generateDirDocs(OutputList &ol);
+void computeDirDependencies();
+void writeDirDependencyGraph(const char *file);
+
+#endif