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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: 2009-04-18 13:48:39 $
Source File: $Source: /home/martin/asc/v2/svntest/games/asc/source/libs/paragui/include/pgscrollbar.h,v $
CVS/RCS Revision: $Revision: 1.3 $
Status: $State: Exp $
*/
/** \file pgscrollbar.h
Header file for the PG_ScrollBar class.
*/
#ifndef PG_SCROLLBAR_H
#define PG_SCROLLBAR_H
#include "pgthemewidget.h"
#include "pgbutton.h"
/**
@author Alexander Pipelka
@short A vertical or horizontal scrollbar
Doesn't actually tie itself to any object to be scrolled, just get's told
it's current state through function calls.
*/
class DECLSPEC PG_ScrollBar : public PG_ThemeWidget {
protected:
#ifndef DOXYGEN_SKIP
class ScrollButton : public PG_Button {
public:
ScrollButton(PG_ScrollBar* parent, const PG_Rect& r = PG_Rect::null);
virtual ~ScrollButton();
void SetTickMode(bool on);
protected:
/** */
bool eventMouseButtonDown(const SDL_MouseButtonEvent* button);
/** */
bool eventMouseMotion(const SDL_MouseMotionEvent* motion);
/** */
PG_ScrollBar* GetParent();
/** */
bool eventMouseButtonUp(const SDL_MouseButtonEvent* button);
/** */
int GetPosFromPoint(PG_Point p);
private:
/** */
PG_Point offset;
/** */
bool my_tickMode;
};
#endif // DOXYGEN_SKIP
public:
//! ScrollbarType
typedef enum {
VERTICAL, //!< vertical scrollbar
HORIZONTAL //!< horizontal scrollbar
} ScrollDirection;
//! Widget ID's
enum {
IDSCROLLBAR_UP = PG_WIDGETID_INTERNAL + 1, //!<ID Scrollbar Button "up"
IDSCROLLBAR_DOWN = PG_WIDGETID_INTERNAL + 2, //!< ID Scrollbar Button "down"
IDSCROLLBAR_LEFT = PG_WIDGETID_INTERNAL + 3, //!< ID Scrollbar Button "left"
IDSCROLLBAR_RIGHT = PG_WIDGETID_INTERNAL + 4, //!< ID Scrollbar Button "right"
IDSCROLLBAR_DRAG = PG_WIDGETID_INTERNAL + 5 //!< ID Scrollbar Button "drag"
};
/**
Signal type declaration
**/
class SignalScrollPos : public sigc::signal<bool, long> {}
;
class SignalScrollTrack : public sigc::signal<bool, long> {}
;
/** */
PG_ScrollBar(PG_Widget* parent, const PG_Rect& r = PG_Rect::null, ScrollDirection direction = VERTICAL, int id = -1, const std::string& style="Scrollbar");
/** */
virtual ~PG_ScrollBar();
void LoadThemeStyle(const std::string& widgettype);
/** */
void SetPosition(int pos);
/** */
int GetPosition();
/** The range in which the scrollbar operates. The whole scrolling area is (max - min) + pagesize */
void SetRange(Uint32 min, Uint32 max);
/** */
int GetMinRange();
/** */
int GetMaxRange();
/** Linesize is the scroll distance that is scrolled if one of the arrow buttons is pressed */
void SetLineSize(int ls);
int GetLineSize();
/** */
void SetPageSize(int ps);
SignalScrollPos sigScrollPos;
SignalScrollTrack sigScrollTrack;
protected:
/** */
void eventSizeWidget(Uint16 w, Uint16 h);
/** */
bool eventMouseMotion(const SDL_MouseMotionEvent* motion);
/** */
bool eventMouseButtonDown(const SDL_MouseButtonEvent* button);
/** */
virtual bool handleButtonClick(PG_Button* button);
/** */
bool eventMouseButtonUp(const SDL_MouseButtonEvent* button);
int scroll_min;
int scroll_max;
long scroll_current;
int my_linesize;
int my_pagesize;
PG_Button* scrollbutton[2];
ScrollButton* dragbutton;
/** the positions of the elements the scrollbar exists of:
\li \c position[0] is the position of the first button ( left / upper )
\li \c position[1] is the position of the second button ( right / lower )
\li \c position[2] is the position of the sliding area
\li \c position[3] is the position of the slider
*/
PG_Rect position[4];
ScrollDirection sb_direction;
virtual void RecalcPositions();
friend class ScrollButton;
private:
PG_ScrollBar(const PG_ScrollBar&);
PG_ScrollBar& operator=(PG_ScrollBar&);
};
#endif // PG_SCROLLBAR_H
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