pgdropdown.h

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/*
    ParaGUI - crossplatform widgetset
    Copyright (C) 2000,2001,2002  Alexander Pipelka
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
    Alexander Pipelka
    pipelka@teleweb.at
 
    Last Update:      $Author: mbickel $
    Update Date:      $Date: 2007-04-13 16:15:56 $
    Source File:      $Source: /home/cvspsrv/cvsroot/games/asc/source/libs/paragui/include/pgdropdown.h,v $
    CVS/RCS Revision: $Revision: 1.2 $
    Status:           $State: Exp $
*/

#ifndef PG_DROPDOWN_H
#define PG_DROPDOWN_H

#include "pgwidget.h"
#include "pgsignals.h"
#include "pglabel.h"
#include "pglineedit.h"

class PG_Button;
class PG_LineEdit;
class PG_ListBox;
class PG_ListBoxBaseItem;

class DECLSPEC PG_DropDown : public PG_Widget {
public:

        template<class datatype = PG_Pointer>
class SignalSelectItem : public PG_Signal1<PG_ListBoxBaseItem*, datatype> {}
        ;

        enum {
            IDDROPDOWN_BOX = PG_WIDGETID_INTERNAL + 11
        };

        PG_DropDown(PG_Widget* parent, const PG_Rect& r = PG_Rect::null, int id = -1, const std::string& style="DropDown");

        ~PG_DropDown();

        void LoadThemeStyle(const std::string& widgettype);

        void AddItem(const std::string& text, void* userdata = NULL, Uint16 height = 0);

        void RemoveAll();

        void DeleteAll();

        void SetIndent(Uint16 indent);

        Uint16 GetIndent();

        void SetEditable(bool edit);

        bool GetEditable();

        const PG_String& GetText();

        void SetText(const std::string& new_text);

        bool ProcessEvent(const SDL_Event * event, bool bModal);

        void SelectFirstItem();


        int GetSelectedItemIndex();

        void SelectNextItem();

        void SelectPrevItem();

        void SelectItem(const int n);

        void SetAlignment(PG_Label::TextAlign style);

        PG_Label::TextAlign GetAlignment();

        PG_Widget* GetFirstInList();

        void AddChild(PG_Widget* child);

        SignalSelectItem<> sigSelectItem;

        PG_LineEdit::SignalEditBegin<> sigEditBegin;
        PG_LineEdit::SignalEditEnd<> sigEditEnd;
        PG_LineEdit::SignalEditReturn<> sigEditReturn;

protected:

        void eventShow();

        void eventHide();

        virtual bool handleButtonClick(PG_Button* button);

        void eventSizeWidget(Uint16 w, Uint16 h);

        void eventMoveWidget(int x, int y);

        virtual bool eventSelectItem(PG_ListBoxBaseItem* item);

        PG_LineEdit* my_EditBox;

        PG_Button* my_DropButton;

        PG_ListBox* my_DropList;

private:
        bool onDropListDeletion( const PG_MessageObject* dropList );

        DLLLOCAL bool select_handler(PG_ListBoxBaseItem* item);

};

#endif  // PG_DROPDOWN_H

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