pgbutton.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/pgbutton.h,v $
    CVS/RCS Revision: $Revision: 1.2 $
    Status:           $State: Exp $
*/

#ifndef PG_BUTTON_H
#define PG_BUTTON_H

#include "pgwidget.h"
#include "pgsignals.h"
#include "pgdraw.h"
#include <string>


class PG_ButtonDataInternal;


class DECLSPEC PG_Button : public PG_Widget  {
public:

        enum {
            OK = 0x80000001,
            YES = 0x80000002,
            NO = 0x80000003,
            APPLY = 0x80000004,
            CANCEL = 0x80000005,
            CLOSE = 0x80000006,
            HELP = 0x80000007
        };

        typedef enum {
            PRESSED,
            UNPRESSED,
            HIGHLITED
        } STATE;

        typedef enum {
            MSGCAPTURE      = 0x00000001,
            SIGNALONCLICK   = 0x00000002,
            SIGNALONRELEASE = 0x00000004
        } BEHAVIOUR;


        template<class datatype = PG_Pointer>
class SignalButtonClick : public PG_Signal1<PG_Button*, datatype> {}
        ;

        PG_Button(PG_Widget* parent, const PG_Rect& r = PG_Rect::null, const std::string& text = PG_NULLSTR, int id = -1, const std::string& style="Button");

        virtual ~PG_Button();

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

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

        void SetGradient(STATE state, const PG_Gradient& gradient);

        void SetBackground(STATE state, SDL_Surface* background, PG_Draw::BkMode mode = PG_Draw::TILE);

        void SetBorderColor(int b, const PG_Color& color);

        bool SetIcon(const std::string& filenameup=PG_NULLSTR, const std::string& filenamedown=PG_NULLSTR, const std::string& filenameover = PG_NULLSTR);

        bool SetIcon(const std::string& filenameup, const std::string& filenamedown, const std::string& filenameover, const PG_Color& colorkey);

        bool SetIcon(SDL_Surface* icon_up, SDL_Surface* icon_down = NULL, SDL_Surface* icon_over = NULL, bool freeSurfaces = false );

        SDL_Surface* GetIcon(STATE num);

        void SetIconIndent(Uint16 indent);

        void SetBorderSize(int norm, int pressed, int high);

        void SetToggle(bool bToggle);

        void SetPressed(bool pressed);

        void SetTransparency(Uint8 t, bool bRecursive = false);

        void SetTransparency(Uint8 norm, Uint8 pressed, Uint8 high);

        void SetShift(int pixelshift);

        bool GetPressed();

        void SetBlendLevel(STATE mode, Uint8 blend);

        Uint8 GetBlendLevel(STATE mode);

        void SetSizeByText(int Width = 0, int Height = 0, const std::string& Text = PG_NULLSTR);

        void SetBehaviour( int behaviour );

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

   
        SignalButtonClick<> sigClick;

        static SignalButtonClick<> sigGlobalClick;

protected:

        virtual void eventButtonSurface(SDL_Surface** surface, STATE newstate, Uint16 w, Uint16 h);

        void eventBlit(SDL_Surface* surface, const PG_Rect& src, const PG_Rect& dst);

        void eventSizeWidget(Uint16 w, Uint16 h);

        void eventMouseLeave();

        void eventMouseEnter();

        bool eventMouseButtonUp(const SDL_MouseButtonEvent* button);

        bool eventMouseButtonDown(const SDL_MouseButtonEvent* button);

   bool eventKeyDown (const SDL_KeyboardEvent *key);
   
private:

        PG_Button(const PG_Button&);
        PG_Button& operator=(const PG_Button&);

        DLLLOCAL void FreeSurfaces();

        DLLLOCAL void FreeIcons();

        PG_ButtonDataInternal* _mid;
};

#endif // PG_BUTTON_H

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