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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/pgscrollwidget.h,v $
CVS/RCS Revision: $Revision: 1.3 $
Status: $State: Exp $
*/
/** \file pgscrollwidget.h
Header file for the PG_ScrollWidget class.
*/
#ifndef PG_SCROLLWIDGET_H
#define PG_SCROLLWIDGET_H
#include "pgthemewidget.h"
#include "pgscrollbar.h"
#include "pgscrollarea.h"
/**
@author Alexander Pipelka
@short Encapsulation of the PG_ScrollArea widget providing scrollbars.
Generally used to make a large 'pane' of widgets that can be scrolled
through in a smaller 'portal' with scrollbars.
*/
class DECLSPEC PG_ScrollWidget : public PG_ThemeWidget {
public:
enum {
IDWIDGETLIST_VSCROLL = PG_WIDGETID_INTERNAL + 10, IDWIDGETLIST_HSCROLL
};
/**
Constructor of the PG_Widget class
*/
PG_ScrollWidget(PG_Widget* parent, const PG_Rect& r = PG_Rect::null, const std::string& style="ScrollWidget");
/**
Destructor of the PG_Widget class
*/
~PG_ScrollWidget();
/** */
void LoadThemeStyle(const std::string& widgettype);
/**
Enable / disable the Scrollbar (override automatic display)
@param enable true - enable scrollbar / false - disable scrollbar
@param direction modified scrollbar (PG_ScrollBar::VERTICAL | PG_ScrollBar::HORIZONTAL)
*/
void EnableScrollBar(bool enable, PG_ScrollBar::ScrollDirection direction = PG_ScrollBar::VERTICAL);
/**
scroll to a give X/Y-Coordinate within the client area.
@param x X-Position
@param y Y-Position
*/
void ScrollTo( int x, int y);
/**
Scroll to a widget
@param widget the target widget
@param bVertical scroll direction
*/
void ScrollToWidget(PG_Widget* widget, bool bVertical = true);
Uint16 GetListHeight();
Uint16 GetListWidth();
Uint16 GetWidgetCount();
PG_Widget* GetFirstInList();
virtual void DeleteAll();
virtual void RemoveAll();
void AddChild(PG_Widget* child);
/** Linesize is the scroll distance that is scrolled if one of the arrow buttons is pressed */
void SetLineSize( int linesize );
int GetLineSize();
/**
Shift widgets on removal.
@param shiftx shift all widgets to the right of the removed widgets.
@param shifty shift all widgets beneath the removed one.
This method controls the behaviour if a widget will be removed from the client
context.
*/
void SetShiftOnRemove(bool shiftx, bool shifty);
/**
Get x offset of current scroll position.
*/
Uint16 GetScrollPosX();
/**
Get y offset of current scroll position.
*/
Uint16 GetScrollPosY();
/**
Automatically adjusts the widget's size to the actual scroll area size;
@param bRemove adjusts size when removing a child
@param bAdd adjusts size when adding a child
*/
void SetAutoResize(bool bRemove, bool bAdd);
PG_ScrollArea::SignalAreaChangedHeight sigAreaChangedHeight;
PG_ScrollArea::SignalAreaChangedWidth sigAreaChangedWidth;
protected:
/** */
void eventSizeWidget(Uint16 w, Uint16 h);
bool eventMouseButtonDown(const SDL_MouseButtonEvent* button);
bool handleScrollPos_horiz(long data);
bool handleScrollPos_vert(long data);
bool handleScrollTrack_horiz(long data);
bool handleScrollTrack_vert(long data);
bool handleAreaChangedHeight(PG_ScrollArea* area, Uint16 h);
bool handleAreaChangedWidth(PG_ScrollArea* area, Uint16 w);
PG_ScrollBar* my_objVerticalScrollbar;
PG_ScrollBar* my_objHorizontalScrollbar;
PG_ScrollArea* my_scrollarea;
int my_widthScrollbar;
int my_heightHorizontalScrollbar;
bool my_enableVerticalScrollbar;
bool my_enableHorizontalScrollbar;
int my_scrollLineSize;
void CheckScrollBars();
private:
PG_ScrollWidget(const PG_ScrollWidget&);
PG_ScrollWidget& operator=(const PG_ScrollWidget&);
DLLLOCAL void CalcScrollbarVisibility();
DLLLOCAL void RecalcPositions(bool bV, bool bH);
};
#endif // PG_SCROLLWIDGET_H
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