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