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100 lines
2.8 KiB
100 lines
2.8 KiB
15 years ago
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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 kdebase/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 <qnamespace.h>
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#include <qpoint.h>
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#include <qsize.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(QSize p_item_size=QSize(0,0),
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QSize p_space_size=QSize(0,0),
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QSize p_border_size=QSize(0,0),
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QSize frame_size=QSize(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(QSize item_size);
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void setSpaceSize(QSize space_size);
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void setBorderSize(QSize border_size);
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void setOrientation(Qt::Orientation orient);
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void setFrameSize(QSize 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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QSize itemSize() const;
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QSize spaceSize() const;
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QSize borderSize() const;
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QSize gridDim() const;
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QSize gridSpacing() const;
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QSize frameSize() const;
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QPoint 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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QPoint posAtCell(int x,int y) const;
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QPoint pos(int i) const;
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QPoint cell(int index) const;
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bool isValid() const;
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int indexNearest(QPoint p) const;
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void dump();
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protected:
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int _getHH(QSize size) const;
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int _getWH(QSize size) const;
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QSize _swapHV(QSize 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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QSize _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 QSize _itemSize, _spaceSize, _borderSize, _gridDim, _gridSpacing, _frameSize;
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mutable QPoint _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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