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/* Copyright 2004, Daniel Woods Bullok <dan.devel@bullok.com>
distributed under the terms of the
GNU GENERAL PUBLIC LICENSE Version 2 -
See the file kdebase/COPYING for details
*/
#ifndef __const_space_grid_h__
#define __const_space_grid_h__
#include <tqnamespace.h>
#include <tqpoint.h>
#include <tqsize.h>
class FlowGridManager {
// Determine if two FlowGridManager objs have the same layout. They may or
// may not have the same input parameters, but the resulting layout is identical.
friend bool operator== ( const FlowGridManager & gp1, const FlowGridManager & gp2 );
public:
typedef enum {
ItemSlack,SpaceSlack,BorderSlack,NoSlack
} Slack;
FlowGridManager(TQSize p_item_size=TQSize(0,0),
TQSize p_space_size=TQSize(0,0),
TQSize p_border_size=TQSize(0,0),
TQSize frame_size=TQSize(0,0),
Qt::Orientation orient=Qt::Horizontal,
int num_items=0,
Slack slack_x=ItemSlack,
Slack slack_y=ItemSlack);
void setNumItems(int num_items);
void setItemSize(TQSize item_size);
void setSpaceSize(TQSize space_size);
void setBorderSize(TQSize border_size);
void setOrientation(Qt::Orientation orient);
void setFrameSize(TQSize frame_size);
void setSlack(Slack slack_x, Slack slack_y);
void setConserveSpace(bool conserve);
TQSize itemSize() const;
TQSize spaceSize() const;
TQSize borderSize() const;
TQSize gridDim() const;
TQSize gridSpacing() const;
TQSize frameSize() const;
TQPoint origin() const;
Qt::Orientation orientation() const;
bool conserveSpace() const;
// Slack slackX() const;
// Slack slackY() const;
TQPoint posAtCell(int x,int y) const;
TQPoint pos(int i) const;
TQPoint cell(int index) const;
bool isValid() const;
int indexNearest(TQPoint p) const;
void dump();
protected:
int _getHH(TQSize size) const;
int _getWH(TQSize size) const;
TQSize _swapHV(TQSize hv) const;
inline void _checkReconfigure() const;
int _slack(int nitems,int length,int item,int space,int border) const;
void _reconfigure() const;
void _clear() const;
protected:
// user-definable data
TQSize _pItemSize,_pSpaceSize,_pBorderSize,_pFrameSize;
Slack _slackX, _slackY;
bool _conserveSpace;
Qt::Orientation _orientation;
int _numItems;
// results
mutable TQSize _itemSize, _spaceSize, _borderSize, _gridDim, _gridSpacing, _frameSize;
mutable TQPoint _origin;
// status
mutable bool _dirty, _valid;
};
// reconfigure the grid if necessary.
inline void FlowGridManager::_checkReconfigure() const
{ if (!_dirty) return;
_reconfigure();
}
#endif
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