KWQListBox.h   [plain text]

/*
 * Copyright (C) 2003 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#ifndef KWQLISTBOX_H_
#define KWQLISTBOX_H_

#include "KWQScrollView.h"
#include "KWQString.h"
#include "KWQSignal.h"

class QListBoxItem;

#ifdef __OBJC__
@class NSMutableArray;
@class NSObject;
#else
class NSMutableArray;
class NSObject;
#endif

class QListBox : public QScrollView {
friend class QListBoxItem;
public:
    enum SelectionMode { Single, Extended };

    QListBox(QWidget *parent);
    ~QListBox();

    QSize sizeForNumberOfLines(int numLines) const;
    
    uint count() const;
    void clear();
    void setSelectionMode(SelectionMode);

    void beginBatchInsert();
    void insertItem(const QString &, unsigned index);
    void insertGroupLabel(const QString &, unsigned index);
    void endBatchInsert();
    void setSelected(int, bool);
    bool isSelected(int) const;
    void setEnabled(bool enabled);
    bool isEnabled();
    
    bool changingSelection() { return _changingSelection; }
    void clicked() { _clicked.call(); }
    void selectionChanged() { _selectionChanged.call(); }

private:
    void insertItem(NSObject *, unsigned index);

    NSMutableArray *_items;
    bool _insertingItems;
    bool _changingSelection;
    bool _enabled;
    mutable float _width;
    mutable bool _widthGood;
    
    KWQSignal _clicked;
    KWQSignal _selectionChanged;
};

#endif