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Bug #2111 » ItemViewAutoSize.h

autosize adapter header - Stefan Ruppert, 08/16/2013 11:12 AM

 
//-*-Mode: C++;-*-
#ifndef MYARM_APPS_WEB_TABLEVIEWAUTOSIZE_H
#define MYARM_APPS_WEB_TABLEVIEWAUTOSIZE_H

#include "myarmconfig.h"

#include <Wt/WLength>
#include <Wt/WAbstractItemModel>
#include <Wt/WAbstractItemView>
#include <Wt/WModelIndex>

namespace myarm
{

namespace web
{

class ItemViewAutoSize
{
public:
/**
* @brief Constructor.
* @param parent Parent WObject
*/
ItemViewAutoSize(Wt::WAbstractItemModel* model,
Wt::WAbstractItemView* view);

void setColumnWidth(int column, const Wt::WLength& width);
void setColumnHidden(int column, bool hidden);

void autoSize(int viewWidth, int visibleRows);
void calcSize();

protected:
class Column
{
public:
Column()
: width_(0)
, fixedWidth_(false)
, hidden_(false)
, count_(0)
, maxLength_(0)
, accLength_(0)
{
}

void clear()
{
width_ = 0;
fixedWidth_= false;
hidden_ = false;
count_ = 0;
maxLength_ = 0;
accLength_ = 0;
}

Wt::WLength width_; /**< Current width of the column */
bool fixedWidth_; /**< This column has a fixed width */
bool hidden_; /**< Is column hidden */
uint32_t count_; /**< Number of items in column */
size_t maxLength_; /**< Maximal string length over all itens. */
size_t accLength_; /**< Accumulated string length over all items. */
};

private:
void adjustColumns() const;
void clearColumns();
bool isHidden(int column) const;

private:
mutable std::vector<Column> columns_;
Wt::WLength defColumnWidth_;
size_t scrollBarWidth_;

Wt::WAbstractItemModel* model_;
Wt::WAbstractItemView* view_;
};

} // namespace web

} // namespace myarm


#endif
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