twolist.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 70 行

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*                            Open Watcom Project
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/* implements a dialog box that has two list boxes, allowing you to
 * remove elements from one box and add them to the other.  This is
 * an abstract base class with pure-virtual methods to access elements of
 * the lists.  the list boxes should be made muliple-selection when possible
 */

#ifndef __TWOLIST_H__

class WListBox;
class WPushButton;

class TwoList
{
public:
                        TwoList() {};
    virtual             ~TwoList() {};

protected:

    enum WhichList { LeftList, RightList };

    virtual void        moveElement( WhichList fromList, int index ) = 0;
    virtual void        moveAll( WhichList fromList ) = 0;
    virtual void        fillBoxes( void ) = 0;

    virtual WListBox *  leftBox() = 0;
    virtual WListBox *  rightBox() = 0;

            void        toRightPressed( WWindow * );
            void        listBoxChanged( WWindow * );
            void        toLeftPressed( WWindow * );
            void        allToRightPressed( WWindow * );
            void        allToLeftPressed( WWindow * );
};

#define __TWOLIST_H__
#endif