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listbox.h

00001 /*
00002   libwftk - Worldforge Toolkit - a widget library
00003   Copyright (C) 2002 Malcolm Walker <malcolm@worldforge.org>
00004   Based on code copyright  (C) 1999-2002  Karsten Laux 
00005 
00006   This library is free software; you can redistribute it and/or
00007   modify it under the terms of the GNU Lesser General Public
00008   License as published by the Free Software Foundation; either
00009   version 2.1 of the License, or (at your option) any later version.
00010   
00011   This library is distributed in the hope that it will be useful,
00012   but WITHOUT ANY WARRANTY; without even the implied warranty of
00013   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014   Lesser General Public License for more details.
00015   
00016   You should have received a copy of the GNU Lesser General Public
00017   License along with this library; if not, write to the
00018   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00019   Boston, MA  02111-1307, SA.
00020 */
00021 
00022 // June 1999
00023 
00024 
00025 #ifndef _LISTBOX_H
00026 #define _LISTBOX_H
00027 
00028 #include <wftk/singlecontainer.h>
00029 #include <wftk/label.h>
00030 
00031 #include <map>
00032 
00033 namespace wftk {
00034 
00035 class Button;
00036 class PushButton;
00037 class Box;
00038 
00042 class ListBox : public SingleContainer
00043 {
00044  //OBJECT
00045 
00046  public:
00050   ListBox();
00051 
00056   void setColor(const Color& color);
00061   void setSelectedColor(const Color& color);
00062 
00068   std::string getSelection() const {return selected_ ? selected_->getText() : "";}
00069 
00074   void addElement(const std::string& data );
00079   void addElements(const std::vector<std::string>& data);
00083   void clear();
00087   void scrollUp();
00091   void scrollDown();
00092   
00096   SigC::Signal1<void, const std::string&> selectionChanged;
00097   
00102   void setSelected(const std::string& item);  
00103 
00104  private:
00106   void setSelectedElement(ScreenArea*);
00108   void setSelectedLabel(Label*);
00110   void selected(Button*);
00112   void addElementImpl(const std::string&);
00114   PushButton* scrollUp_;
00116   PushButton* scrollDown_;
00118   Box* buttonBox_;
00120   typedef std::map<std::string,Label*> Elements;
00122   Elements elements_;
00124   bool lock_;
00126   Label* selected_;
00128   Color selectedCol_;
00129 };  
00130 
00131 
00132 }
00133 
00134 #endif // !_LISTBOX_H

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