/usr/include/fox-1.6/FXScrollArea.h is in libfox-1.6-dev 1.6.49-2ubuntu1.
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* *
* S c r o l l A r e a W i d g e t *
* *
*********************************************************************************
* Copyright (C) 1997,2006 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *
*********************************************************************************
* $Id: FXScrollArea.h,v 1.29 2006/01/22 17:58:09 fox Exp $ *
********************************************************************************/
#ifndef FXSCROLLAREA_H
#define FXSCROLLAREA_H
#ifndef FXCOMPOSITE_H
#include "FXComposite.h"
#endif
namespace FX {
/// Scrollbar options
enum {
SCROLLERS_NORMAL = 0, /// Show the scrollbars when needed
HSCROLLER_ALWAYS = 0x00008000, /// Always show horizontal scrollers
HSCROLLER_NEVER = 0x00010000, /// Never show horizontal scrollers
VSCROLLER_ALWAYS = 0x00020000, /// Always show vertical scrollers
VSCROLLER_NEVER = 0x00040000, /// Never show vertical scrollers
HSCROLLING_ON = 0, /// Horizontal scrolling turned on (default)
HSCROLLING_OFF = HSCROLLER_NEVER|HSCROLLER_ALWAYS, /// Horizontal scrolling turned off
VSCROLLING_ON = 0, /// Vertical scrolling turned on (default)
VSCROLLING_OFF = VSCROLLER_NEVER|VSCROLLER_ALWAYS, /// Vertical scrolling turned off
SCROLLERS_TRACK = 0, /// Scrollers track continuously for smooth scrolling
SCROLLERS_DONT_TRACK = 0x00080000 /// Scrollers don't track continuously
};
class FXScrollBar;
class FXScrollCorner;
/**
* The scroll area widget manages a content area and a viewport
* area through which the content is viewed. When the content area
* becomes larger than the viewport area, scrollbars are placed to
* permit viewing of the entire content by scrolling the content.
* Depending on the mode, scrollbars may be displayed on an as-needed
* basis, always, or never.
* Normally, the scroll area's size and the content's size are independent;
* however, it is possible to disable scrolling in the horizontal
* (vertical) direction. In this case, the content width (height)
* will influence the width (height) of the scroll area widget.
* For content which is time-consuming to repaint, continuous
* scrolling may be turned off.
*/
class FXAPI FXScrollArea : public FXComposite {
FXDECLARE(FXScrollArea)
protected:
FXScrollBar *horizontal; // Horizontal scroll bar
FXScrollBar *vertical; // Vertical scroll bar
FXScrollCorner *corner; // Scroll corner
FXint viewport_w; // Viewport width
FXint viewport_h; // Viewport height
FXint pos_x; // X scroll position (pos_x<=0)
FXint pos_y; // Y scroll position (pos_y<=0)
protected:
FXScrollArea();
FXbool startAutoScroll(FXEvent *event,FXbool onlywheninside=FALSE);
void stopAutoScroll();
FXScrollArea(FXComposite* p,FXuint opts,FXint x,FXint y,FXint w,FXint h);
virtual void moveContents(FXint x,FXint y);
private:
FXScrollArea(const FXScrollArea&);
FXScrollArea &operator=(const FXScrollArea&);
public:
long onHMouseWheel(FXObject*,FXSelector,void*);
long onVMouseWheel(FXObject*,FXSelector,void*);
long onHScrollerChanged(FXObject*,FXSelector,void*);
long onVScrollerChanged(FXObject*,FXSelector,void*);
long onHScrollerDragged(FXObject*,FXSelector,void*);
long onVScrollerDragged(FXObject*,FXSelector,void*);
long onAutoScroll(FXObject*,FXSelector,void*);
public:
/// Return default width
virtual FXint getDefaultWidth();
/// Return default height
virtual FXint getDefaultHeight();
/// Perform layout
virtual void layout();
/// Return viewport height
virtual FXint getViewportHeight();
/// Return viewport width
virtual FXint getViewportWidth();
/// Return content width
virtual FXint getContentWidth();
/// Return content height
virtual FXint getContentHeight();
/// Change scroll style
void setScrollStyle(FXuint style);
/// Return scroll style
FXuint getScrollStyle() const;
/// Return TRUE if horizontally scrollable
FXbool isHorizontalScrollable() const;
/// Return TRUE if vertically scrollable
FXbool isVerticalScrollable() const;
/// Return a pointer to the horizontal scrollbar
FXScrollBar* horizontalScrollBar() const { return horizontal; }
/// Return a pointer to the vertical scrollbar
FXScrollBar* verticalScrollBar() const { return vertical; }
/// Return the current x-position
FXint getXPosition() const { return pos_x; }
/// Return the current y-position
FXint getYPosition() const { return pos_y; }
/// Set the current position
void setPosition(FXint x,FXint y);
/// Get the current position
void getPosition(FXint& x,FXint& y) const { x=pos_x; y=pos_y; }
/// Destructor
virtual ~FXScrollArea();
};
}
#endif
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