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// Copyright (c) 2003 Charles Samuels <charles@kde.org>
// See the file COPYING for redistribution terms.
#ifndef TREE_H
#define TREE_H
#include <tqwidget.h>
#include <klistview.h>
#include "base.h"
#include "query.h"
#include "file.h"
class Oblique;
class Tree;
class TreeItem : public TDEListViewItem
{
QueryGroup *mGroup;
File mFile;
bool mUserOpened:1;
bool mHidden:1;
public:
TreeItem(Tree *parent, QueryGroup *group, const File &file, const TQString &p=0);
TreeItem(TreeItem *parent, QueryGroup *group, const File &file, const TQString &p=0);
~TreeItem();
QueryGroup *group() { return mGroup; }
const QueryGroup *group() const { return mGroup; }
void setGroup(QueryGroup *group) { mGroup = group; }
TreeItem *parent() { return static_cast<TreeItem*>(TDEListViewItem::parent()); }
Tree *tree();
TreeItem *itemBelow() { return static_cast<TreeItem*>(TDEListViewItem::itemBelow()); }
TreeItem *firstChild() { return static_cast<TreeItem*>(TDEListViewItem::firstChild()); }
TreeItem *nextSibling() { return static_cast<TreeItem*>(TDEListViewItem::nextSibling()); }
// for gdb, which sucks.
TQString presentation() const;
File file() { return mFile; }
void setFile(File file) { mFile = file; }
void setOpen(bool o);
TreeItem *find(File item);
bool playable() const;
/**
* get the next item that is playable logically.
* that is, if it has a File, and its parent hasn't a
* File
**/
TreeItem *nextPlayable();
void paintCell(TQPainter *p, const TQColorGroup &cg, int column, int width, int align);
virtual int compare(TQListViewItem * i, int col, bool) const;
/**
* open my parents so that I'm visible, if I'm playing or
* close my parents if I'm not playing, and the user
* didn't open
**/
void autoExpand();
bool userOpened() const { return mUserOpened; }
bool hideIfNoMatch(const TQString &match);
void setHidden(bool on);
virtual void setup();
private:
TreeItem *next();
void forceAutoExpand();
};
class FileMenu;
class Loader;
class Tree : public TDEListView
{
Q_OBJECT
Oblique *mOblique;
Query mQuery;
TreeItem *mCurrent;
FileMenu *lastMenu;
Slice *mSlice;
TQString mFileOfQuery;
friend class TreeItem;
int mPlayableItemCount; // used by the friendship
TQPtrList<TreeItem> mAutoExpanded;
unsigned int mAutoExpanding;
Loader *mLoader;
public:
Tree(Oblique *oblique, TQWidget *parent=0);
~Tree();
TreeItem *firstChild();
TreeItem *find(File item);
TreeItem *current() { return mCurrent; }
Query *query() { return &mQuery; }
Oblique *oblique() { return mOblique; }
Slice *slice() { return mSlice; }
TQString fileOfQuery() const { return mFileOfQuery; }
void clear();
int playableItemCount() const { return mPlayableItemCount; }
void addAutoExpanded(TreeItem *i) { mAutoExpanded.append(i); }
void removeAutoExpanded(TreeItem *i) { mAutoExpanded.removeRef(i); }
void resetAutoExpanded() { mAutoExpanded.clear(); }
void setAutoExpanding(bool e) { mAutoExpanding += e ? 1 : -1; }
bool autoExpanding() const { return mAutoExpanding; }
void deleted(TreeItem *item);
bool setSchema(const TQString &name);
protected:
virtual TQDragObject *dragObject();
void movableDropEvent(TQListViewItem* parent, TQListViewItem* afterme);
public slots:
void insert(TreeItem *replace, File file);
void insert(File file);
void remove(File file);
void update(File file);
void setCurrent(TreeItem *cur);
void setSlice(Slice *sl);
void checkInsert(Slice*, File);
void checkRemove(Slice*, File);
/**
* the resulting presentation of this item must contain the string @p text
* or it will not be displayed
* (used for Jump)
**/
void setLimit(const TQString &text);
private slots:
void contextMenu(TDEListView* l, TQListViewItem* i, const TQPoint& p);
void play(TQListViewItem *item);
void destroyLoader();
void dropped(TQPtrList<TQListViewItem> &items, TQPtrList<TQListViewItem> &, TQPtrList<TQListViewItem> &afterNow);
signals:
void selected(TreeItem *);
private:
/**
* check if it fits into the group, and create
* the tree nodes for it
**/
TreeItem *collate(TreeItem *fix, QueryGroup *group, const File &file, TreeItem *childOf=0);
TreeItem *collate(const File &file, TreeItem *childOf=0)
{
if (!mQuery.firstChild()) return 0;
return collate(0, mQuery.firstChild(), file, childOf);
}
TreeItem *collate(TreeItem *fix, const File &file, TreeItem *childOf=0)
{
if (!mQuery.firstChild()) return 0;
return collate(fix, mQuery.firstChild(), file, childOf);
}
TreeItem *node(TreeItem *fix, QueryGroup *group, const File &file, TreeItem *childOf);
/**
* remove the siblings and children of the treeitem
**/
void remove(TreeItem *, const File &file);
void limitHide(TreeItem *i, const TQString &text);
void reload();
};
#endif
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