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/********************************************************************************
* *
* S p r i n g C o n t a i n e r W i d g e t *
* *
*********************************************************************************
* Copyright (C) 2003,2022 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 3 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 program. If not, see <http://www.gnu.org/licenses/> *
********************************************************************************/
#ifndef FXSPRING_H
#define FXSPRING_H
#ifndef FXPACKER_H
#include "FXPacker.h"
#endif
namespace FX {
/**
* The spring widgets, when properly embedded side by side in a horizontal
* frame or vertical frame widget, behave like a set of connected springs
* of various lengths (hence the name!). The parameters relw (or relh)
* determines the length of the spring. The actual length is not really
* important; the only thing that counts is the relative length of one
* spring widget to that of another, although the length does determine
* the default size. The special value zero may be given for relw (or relh)
* to cause the spring to calculate its default width (height) normally,
* just like the Packer base class does.
* In a typical scenario, either the relative width or height is set to
* zero, and the flag LAYOUT_FILL_X or LAYOUT_FILL_Y is passed. When
* placed inside a horizontal frame, the LAYOUT_FILL_X together with
* the relative widths of the springs will cause a fixed width-ratio
* between the springs.
* You also can mix normal controls and springs together in a horizontal
* or vertical frames to provide arbitrary stretchable spacing between
* widgets; in this case, the springs do not need to have any children.
* Since the spring widget is derived from the packer layout manager,
* it provides the same layout behavior as packer.
*/
class FXAPI FXSpring : public FXPacker {
FXDECLARE(FXSpring)
protected:
FXint relWidth; // Relative width
FXint relHeight; // Relative height
protected:
FXSpring(){}
private:
FXSpring(const FXSpring&);
FXSpring &operator=(const FXSpring&);
public:
/// Construct packer layout manager
FXSpring(FXComposite *p,FXuint opts=0,FXint relw=0,FXint relh=0,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=DEFAULT_SPACING,FXint pr=DEFAULT_SPACING,FXint pt=DEFAULT_SPACING,FXint pb=DEFAULT_SPACING,FXint hs=DEFAULT_SPACING,FXint vs=DEFAULT_SPACING);
/// Return default width
virtual FXint getDefaultWidth();
/// Return default height
virtual FXint getDefaultHeight();
/// Change relative width
void setRelativeWidth(FXint relw);
/// Return relative width
FXint getRelativeWidth() const { return relWidth; }
/// Change relative height
void setRelativeHeight(FXint relh);
/// Return relative height
FXint getRelativeHeight() const { return relHeight; }
/// Save to stream
virtual void save(FXStream& store) const;
/// Load from stream
virtual void load(FXStream& store);
};
}
#endif
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